Structure for Connecting and Fixing Lighter's Core Assembly

This application claims priority to PCT Application No. PCT/CN2024/080455, filed on Mar. 7, 2024, which is hereby incorporated by reference in its entirety.

The present invention relates to the technical field of lighters, in particular to a structure for connecting and fixing a lighter's core assembly.

Fuel oil lighters, such as lighters branded as Zippo, have many characteristics, for instance, reuse, wind-proof, and variability in casing's appearance, so they become a people's favorite. The fuel oil lighter mainly consists of two parts, a casing and a core assembly; such a design makes it convenient for the core assembly to fill with fuel oil, but also brings some defects. At the moment of filling with fuel oil and replace a flint, it is necessary for the core assembly to be removed from the casing, except such a moment the core assembly remains inside the casing, so as to, on the one hand, make it easy for the core assembly to be plugged and unplugged, and on the other hand, enable the relative position of the core assembly inside the casing to keep fixed for use. However, as the core assembly is frequently plugged and unplugged, as well as an upward force is exerted on the core assembly during the opening and closing of an top lid of the casing, the core assembly loosens with respect to the casing after using for a period of time, not only affecting the direct sealing between the core assembly and the casing, but also causing the core assembly to leap up while opening and closing the top lid of the casing. In order to facilitate filling with fuel oil, for most fuel lighters, an oil filling hole is designed to be open at the bottom of the core assembly, and only covered by a piece of felt; in addition, because a flint ejector pin screw protrudes from the bottom of the core assembly, the bottom of the core assembly cannot touch the bottom of the casing, resulting in a gap. As a result, there is no other way but lie on close contact between the core assembly and the side wall of the casing, the kerosene evaporates quickly in case of loosening the core assembly and the casing, not only shortening the service time of the fuel oil lighter, but also polluting the environment.

The Chinese utility model patent (Application number: CN202021939802.6; Patent name: connection structure for lighters), and the Chinese utility model patent (Application number: CN200720154642.2; and Patent name: lighter and casing, hinge and core assembly thereof) give a technical solution to increase friction between a casing and a core assembly by adding an elastic piece between the casing and the core assembly; however, these two technical solutions are still restrictive, that is, they cannot solve the problem of causing the core assembly to leap up while opening and closing the top lid of the casing.

In order to solve the problem of causing the core assembly to leap up while opening and closing the top lid of the casing, the present invention provides a structure for connecting and fixing a lighter's core assembly, which includes an A-class casing, an A-class connecting piece disposed inside the A-class casing, an A-class hinge, an A-class top lid and an A-class core assembly, wherein the A-class connecting piece props against the A-class hinge that connects the A-class casing with the A-class top lid, and the A-class connecting piece is fixed to the bottom of the A-class core assembly.

Preferably, the A-class connecting piece is L-shaped, the A-class connecting piece includes a side edge and a bottom edge, the side edge props against the A-class hinge, and the bottom edge is fixed to the bottom of the A-class core assembly.

Preferably, an A-class bottom lid is disposed at the bottom of the A-class core assembly, and the bottom edge is fixed to the A-class bottom lid.

Preferably, the bottom edge and the A-class bottom lid can be detached from each other.

Preferably, the bottom edge and the A-class bottom lid can be fixed to each other by means of magnetic absorption.

Preferably, an A-class ejector pin hole is disposed on the A-class bottom lid, an A-class flint tube is sleeved inside the A-class ejector pin hole, and the A-class bottom lid is connected and fixed to the A-class flint tube by means of an A-class screw.

Preferably, the A-class bottom lid has an A-class side edge boss, and the A-class core assembly gets stuck on the A-class side edge boss.

Further, the present invention provides a structure for connecting and fixing a lighter's core assembly having a B-class casing, a B-class core assembly and a B-class connecting piece disposed inside the B-class casing, wherein the structure further comprises a B-class hinge and a B-class top lid, the B-class connecting piece props against and connects the B-class hinge disposed on the B-class casing and the B-class top lid, the B-class connecting piece has an U-shaped groove, and one side of the B-class core assembly detachably gets stuck inside the U-shaped groove.

Preferably, a B-class bottom lid is disposed at the bottom of the B-class core assembly, and a left fixing piece and a right fixing piece that match each other are respectively disposed on the B-class connecting piece and the B-class bottom lid.

Preferably, the left fixing piece and the right fixing piece each lie inside the B-class core assembly.

Preferably, the B-class connecting piece includes a propping portion and a fixing portion, the U-shaped groove is disposed between the propping portion and the fixing portion, the left fixing piece is disposed on the fixing portion, the B-class bottom lid has a side fixing portion, and the right fixing piece is disposed the side fixing portion.

Preferably, a B-class ejector pin hole is disposed on the B-class bottom lid, a B-class flint tube is sleeved inside the B-class ejector pin hole, and the B-class bottom lid is connected and fixed to the B-class flint tube by means of a B-class screw.

Further, a structure for connecting and fixing a lighter's core assembly having a C-class casing, a C-class core assembly and a C-class connecting piece disposed inside the C-class casing, wherein the structure further comprises a C-class hinge, a C-class top lid and a C-class bottom lid, the C-class connecting piece further has a side edge, which props against and connects the C-class hinge disposed on the C-class casing and the C-class top lid, the C-class bottom lid is disposed on the bottom of the C-class core assembly, and fixing pieces matching each other are respectively disposed on the side edge and the C-class bottom lid.

Preferably, the fixing pieces lie outside the C-class core assembly.

Preferably, the fixing pieces include a left fixing piece disposed on the side edge and a right fixing piece disposed on the C-class bottom lid.

Preferably, the left fixing piece is a fixing protrusion disposed on the bottom of the side edge, and the right fixing piece is a position-limiting groove disposed on the C-class bottom lid.

Preferably, a C-class ejector pin hole is disposed on the C-class bottom lid, a C-class flint tube is sleeved inside the C-class ejector pin hole, and the C-class bottom lid is connected and fixed to the C-class flint tube by means of a C-class screw.

Compared with the prior art, in the present invention the special-shaped connecting piece inside the casing is fixed to the side portion of the bottom lid of the core assembly, so that the core assembly can be fixed in the casing at the moment of opening and closing the top lid of the casing, so as to prevent the core assembly from leaping up; therefor, the present invention effectively solves the problem of causing the core assembly to leap up while opening and closing the top lid of a ZIPPO brand lighter, as well as seals the space at the bottom of the core assembly, enhancing a sealing effect at the bottom, reducing volatilization of kerosene, and prolonging a service time of the lighter after filling with fuel oil one time.

We shall clearly and completely describe the technical solutions in each example of the present invention in combination with the figures as follows, obviously, the described examples are only part of the embodiments of the present invention, not all embodiments. Based on the examples described in the present invention, all other examples obtained by a person skilled in the art on the premise of making no creative work fall within the protection scope of the present invention.

As shown in, a structure for connecting and fixing a lighter's core assembly includes an A-class casing aand an A-class core assembly a, wherein the A-class core assembly ais jammed inside the A-class casing a, and the A-class casing aand the A-class core assembly acan be plugged and unplugged into and from each other to facilitate filling the A-class core assembly awith fuel oil. The A-class casing ais movably connected with an A-class top lid all through an A-class hinge a, and an A-class fixing plate adisposed at the lower portion of the A-class hinge aextends into the A-class casing a, and an A-class connecting piece aA propping against the A-class fixing plate ais disposed inside the A-class casing a, and the A-class connecting piece aA is L-shaped; the A-class connecting piece aA includes a side edge and a bottom edge, and the side edge of the connecting piece aA props against the A-class fixing plate a. An A-class bottom lid aA is disposed at the bottom of the A-class core assembly a, and an A-class ejector pin hole is disposed on the A-class bottom lid aA, and an A-class sleeve ais disposed on the A-class ejector pin hole, an A-class flint tube apasses through the A-class sleeve a, and then extends into the A-class ejector pin hole and is connected with an A-class screw a. The A-class bottom lid aA has an A-class side edge boss aA, and the bottom of the A-class core assembly ais open, and the bottom edge of the A-class core assembly agets stuck on the A-class side edge boss aA. An A-class connecting piece protrusion aAis disposed on the bottom edge of the A-class connecting piece connector aA, and an A-class bottom lid hole aAA is disposed on the bottom lid aA, and the A-class connecting piece protrusion aAgets stuck in the A-class bottom lid hole aA. The A-class connecting piece protrusion aAand the A-class bottom lid hole aAmay be designed to be a pair of buckles or other structures that can be quickly disassembled and assembled in the prior art. An A-class elastic piece ais further disposed on the side edge of the A-class connecting piece aA, and the A-class elastic piece aprops against the A-class core assembly a, and is configured to further enhance the friction between the A-class casing aand the A-class core assembly a. If unnecessary, there may be no need to dispose the A-class elastic piece aon the side edge of the A-class connecting piece aA.

At the time of using the lighter, first put the L-shaped A-class connecting piece aA into the A-class casing a, and make the side edge of the A-class connecting piece aA fit on the lower portion of the A-class fixing plate a, and then insert the A-class core assembly a, so as to make the A-class connecting piece protrusion aAon the bottom edge of the A-class connecting piece aA into the A-class bottom lid hole aA, at this time indicating that the A-class core assembly ais successfully fixed to the A-class casing a. After that, opening and closing the A-class top lid all cannot make the A-class core assembly aleap up, and the newly-designed A-class bottom lid aA further enhances the sealing of the A-class core assembly a. When it is necessary to plug and unplug the A-class core assembly a, just raise the A-class core assembly awith force, in this way the A-class core assembly acan be easily removed, and the A-class connecting piece aA also gets loosened. After removed, it is possible to fill the A-class core assembly awith fuel oil through the A-class bottom lid hole aA.

As shown in, a structure for connecting and fixing a lighter's core assembly includes an A-class casing aand an A-class core assembly a, wherein the A-class core assembly ais jammed inside the A-class casing a, and the A-class casing aand the A-class core assembly acan be plugged and unplugged into and from each other to facilitate filling the A-class core assembly awith fuel oil. The A-class casing ais movably connected with an A-class top lid all through an A-class hinge a, and an A-class fixing plate adisposed at the lower portion of the A-class hinge aextends into the A-class casing a, and an A-class connecting piece aD propping against the A-class fixing plate ais disposed inside the A-class casing a, and the A-class connecting piece aD is L-shaped; the A-class connecting piece aD includes a side edge and a bottom edge, and the side edge of the connecting piece aD props against the A-class fixing plate a. An A-class bottom lid aD is disposed at the bottom of the A-class core assembly a, and an A-class ejector pin hole is disposed on the A-class bottom lid aD, and an A-class sleeve ais disposed on the A-class ejector pin hole, an A-class flint tube apasses through the A-class sleeve a, and then extends into the A-class ejector pin hole and is connected with an A-class screw a. The A-class bottom lid aD has an A-class side edge boss aD, and the bottom of the A-class core assembly ais open, and the bottom edge of the A-class core assembly agets stuck on the A-class side edge boss aD. A groove is disposed on the bottom edge of the A-class connecting piece aD, and a magnetic block aDis disposed inside the groove; in the other case, there is no need to configure a groove, and just directly fit a thinner magnetic block aDon the A-class connecting piece aD. The A-class bottom lid aD may be made of magnetically-absorbable iron. A fuel oil filing hole aDis further disposed on the bottom lid aD; in a state of installing, the bottom edge of the A-class connecting piece aD completely covers the fuel oil filing hole aD. An A-class elastic piece ais further disposed on the side edge of the A-class connecting piece aD, and the A-class elastic piece aprops against the A-class core assembly a, and is configured to further enhance the friction between the A-class casing aand the A-class core assembly a. If unnecessary, there may be no need to dispose the A-class elastic piece aon the side edge of the A-class connecting piece aA.

At the time of using the lighter, first put the L-shaped A-class connecting piece aD into the A-class casing a, and make the side edge of the A-class connecting piece aD fit on the lower portion of the A-class fixing plate a, and then insert the A-class core assembly a, so as to the A-class bottom lid aD touch the bottom edge of the A-class connecting piece aD, at this time, the A-class bottom lid aD will be absorbed by the magnetic block aDon the bottom edge, and such a absorbing force can also completely absorb the A-class bottom lid aD when the A-class core assembly ais to leap up while opening and closing the A-class top lid a. When it is necessary to plug and unplug the A-class core assembly a, just raise the A-class core assembly awith force, in this way the A-class core assembly acan be easily removed, and the A-class connecting piece aD also gets loosened. After removed, it is possible to fill the A-class core assembly awith fuel oil through the A-class bottom lid hole aD.

As shown in, a structure for connecting and fixing a lighter's core assembly includes an B-class casing band an B-class core assembly b, wherein the B-class core assembly bis jammed inside the B-class casing b, and the B-class casing band the B-class core assembly bcan be plugged and unplugged into and from each other to facilitate filling the B-class core assembly bwith fuel oil. The B-class casing bis movably connected with an B-class top lid bthrough an B-class hinge b, and an B-class fixing plate bdisposed at the lower portion of the B-class hinge bextends into the B-class casing b, and an B-class connecting piece bA propping against the B-class fixing plate bis disposed inside the B-class casing b, and the B-class connecting piece bA is U-shaped; the B-class connecting piece bA includes a propping portion and a fixing portion bA, and the propping portion of the connecting piece bA props against the B-class fixing plate b. At the same time, a U-shaped groove bis formed between the propping portion and the fixing portion bA. A B-class bottom lid bA is disposed at the bottom of the B-class core assembly b, and an ejector pin hole is disposed at the B-class bottom lid bA, and a B-class sleeve bis disposed on the ejector pin hole, a B-class flint tube bpasses through the B-class sleeve b, and then extends into the ejector pin hole and is connected with a screw b. The B-class bottom lid bA has a B-class side edge boss bA, and the bottom of the B-class core assembly bis open, and the bottom edge of the B-class core assembly bgets stuck on the B-class side edge boss bA. An elastic piece bis further disposed on the side edge of the B-class connecting piece bA, and the elastic piece bprops against the B-class core assembly b, and is configured to further enhance the friction between the B-class casing band the B-class core assembly b. If unnecessary, there may be no need to dispose the elastic piece bon the side edge of the B-class connecting piece bA.

An elastic triangle protrusion bAis disposed on the fixing portion bA, and the elastic triangle protrusion bAis horizontally disposed and positioned above the fixing portion bA, so as to make the elastic triangle protrusion bAeasily sway left and right through the fixing portion bA, and give the elastic triangle protrusion bAa certain space to move. A side connecting portion bAis further disposed on the bottom lid bA, and an elastic triangle groove bAmatching the elastic triangle protrusion bAis disposed on the side connecting portion bA. The elastic triangle groove bAand the elastic triangle protrusion bAform a triangular arrangement and make it easy for the two to engage and disengage. One side of the B-class core assembly bis inserted into the U-groove b, and the fixing portion bAon the B-class connecting piece bA and the side connecting portion bAon the bottom lid bA are all fixedly connected with each other inside the B-class core assembly b.

At the time of using the lighter, first put the U-shaped B-class connecting piece bA into the B-class casing b, and make the propping portion of the B-class connecting piece bA fit on the lower portion of the B-class fixing plate b, and then insert the B-class core assembly b, so as to insert the B-class core assembly binto the U-shaped b. At this time, inside the B-class core assembly b, the elastic triangular protrusion bAof the fixing portion bAon the B-class connecting piece bA is jammed into the elastic triangle groove bAof the side connecting portion bAof the bottom lid bA, so that the B-class connecting piece bA is fixed to the B-class core assembly b. After that, opening and closing the B-class top lid bcannot make the B-class core assembly bleap up, and the newly-designed bottom lid bA further enhances the sealing of the B-class core assembly b. When it is necessary to plug and unplug the B-class core assembly b, just raise the B-class core assembly bwith force, in this way the B-class core assembly bcan be easily removed, and the B-class connecting piece bA also gets loosened and can be removed at any time.

As shown in, a structure for connecting and fixing a lighter's core assembly includes a C-class casing cand a C-class core assembly c, wherein the C-class core assembly cis jammed inside the C-class casing c, and the C-class casing cand the C-class core assembly ccan be plugged and unplugged into and from each other to facilitate filling the C-class core assembly cwith fuel oil. The C-class casing cis movably connected with a C-class top lid cthrough a C-class hinge c, and a C-class fixing plate cdisposed at the lower portion of the C-class hinge cextends into the C-class casing c, and a C-class connecting piece cpropping against the C-class fixing plate cis disposed inside the C-class casing c, and the C-class connecting piece cis I-shaped; the C-class connecting piece cincludes a side edge, and the side edge of the C-class connecting piece cprops against the C-class fixing plate c. A C-class bottom lid cis disposed at the bottom of the C-class core assembly c, and a C-class ejector pin hole cis disposed at the C-class bottom lid c, and a sleeve cis disposed on the C-class ejector pin hole c, a C-class flint tube cpasses through the sleeve c, and then extends into the C-class ejector pin hole cand is connected with a screw c. The C-class bottom lid chas a C-class side edge boss c, and the bottom of the C-class core assembly cis open, and the bottom edge of the C-class core assembly cgets stuck on the C-class side edge boss c.

A space groove cis disposed at the bottom of the C-class connecting piece c, and a fixing protrusion cis disposed inside the space groove c, and the fixing protrusion ccan elastically move inside the space groove c, as well as the fixing protrusion cis triangular. An extension plate cis disposed at the bottom of the C-class bottom lid c, and the extension plate cis in a step-like shape, and a position-limiting groove cis formed between the extension plate cand the lower edge of the C-class core assembly c; in addition, in order to maintain stability, the extension plate ccan be fixed on the C-class bottom lid cby welding. A fuel oil filling hole cis further disposed on the C-class bottom lid c, and a fuel oil filling cap cis movably disposed on the fuel oil filling hole c, and the other end of the fuel oil filling cap cis rotatably fixed inside the fixing hole cby way of passing by the extension plate c. The fixing protrusion ccan extend into the position-limiting groove c. An elastic piece cis further disposed on the side edge of the C-class connecting piece c, and the elastic piece cprops against the C-class core assembly c, and is configured to further enhance the friction between the C-class casing cand the C-class core assembly c. If unnecessary, there may be no need to dispose the elastic piece con the side edge of the C-class connecting piece c.

At the time of using the lighter, first put the I-shaped C-class connecting piece cinto the C-class casing c, and make the C-class connecting piece cfit on the lower portion of the C-class fixing plate c, and then insert the C-class core assembly c. At this time, the fixing protrusion cengages with the position-limiting groove cto fix the C-class connecting piece cto the C-class core assembly c. After that, opening and closing the C-class top lid ccannot make the C-class core assembly cleap up, and the newly-designed C-class bottom lid cfurther enhances the sealing of the C-class core assembly c. When it is necessary to plug and unplug the C-class core assembly c, just raise the C-class core assembly cwith force, in this way the C-class core assembly ccan be easily removed, and the C-class connecting piece calso gets loosened and can be removed at any time. When it is necessary to fill with fuel oil, just poke the fuel oil filling cap cfrom the fuel oil filling hole c, and then twist the fuel oil filling cap cto expose the fuel oil filling hole C.

As shown in, a structure for connecting and fixing a lighter's core assembly includes a C-class casing cand a C-class core assembly c, wherein the C-class core assembly cis jammed inside the C-class casing c, and the C-class casing cand the C-class core assembly ccan be plugged and unplugged into and from each other to facilitate filling the C-class core assembly cwith fuel oil. The C-class casing cis movably connected with a C-class top lid cthrough a C-class hinge c, and a C-class fixing plate cdisposed at the lower portion of the C-class hinge cextends into the C-class casing c, and a C-class connecting piece cA propping against the C-class fixing plate cis disposed inside the C-class casing c, and the C-class connecting piece cA is I-shaped; the C-class connecting piece cA includes a side edge, and the side edge of the C-class connecting piece cA props against the C-class fixing plate c. A C-class bottom lid cA is disposed at the bottom of the C-class core assembly c, and a C-class ejector pin hole is disposed at the C-class bottom lid cA, and the position of the C-class ejector pin hole in EXAMPLE 5 is consistent with that in EXAMPLE 4; a sleeve cis disposed on the C-class ejector pin hole, a C-class flint tube cpasses through the sleeve c, and then extends into the C-class ejector pin hole and is connected with a screw. The C-class bottom lid cA has a C-class side edge boss c, and the bottom of the C-class core assembly cis open, and the bottom edge of the C-class core assembly cgets stuck on the C-class side edge boss c.

A reinforcing cover cAis disposed on the bottom of the C-class bottom lid cA, and the C-class bottom lid cA and the reinforcing cover cAare made into a one-piece, and a position-limiting groove cAis formed between the lower edge of the C-class core assembly cand the reinforcing cover cAafter installing the C-class core assembly conto the C-class bottom lid c. A fixing protrusion cAis disposed on the C-class connecting piece cA, and the fixing protrusion cAis Arc-shaped, so that it is easily jammed into the position-limiting groove cA. An elastic piece cis further disposed on the side edge of the C-class connecting piece cA, and the elastic piece cprops against the C-class core assembly c, and is configured to further enhance the friction between the C-class casing cand the C-class core assembly c. If unnecessary, there may be no need to dispose the elastic piece con the side edge of the C-class connecting piece cA.

At the time of using the lighter, first put the I-shaped C-class connecting piece cA into the C-class casing c, and make the C-class connecting piece cA fit on the lower portion of the C-class fixing plate c, and then insert the C-class core assembly c. At this time, the fixing protrusion cAengages with the position-limiting groove cAto fix the C-class connecting piece cA to the C-class core assembly c. After that, opening and closing the C-class top lid ccannot make the C-class core assembly cleap up, and the newly-designed C-class bottom lid cA further enhances the sealing of the C-class core assembly c. When it is necessary to plug and unplug the C-class core assembly c, just raise the C-class core assembly cwith force, in this way the C-class core assembly ccan be easily removed, and the C-class connecting piece cA also gets loosened and can be removed at any time.

In a specific structure, there is no limitation on the structure described in the examples, as long as the C-class bottom lid and the I-shape C-class connecting piece are fixed to each other, such an existing structure falls within the protection scope of the present invention.

For a person skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other concrete forms without deviating from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in any way, and the scope of the invention is defined by the claims and not by the above description; thus, any change falling within the meaning and scope of the equivalent elements of the claims will be incorporated in the present invention. Any mark in the claims shall not be deemed as a limitation to the claims where it is involved.

In addition, it should be understood that although the description has been presented in terms of embodiments, not each embodiment contains only one independent technical solution, and this mode of the description is for clarity only; accordingly, a person skilled in the art shall take the description as a whole, and technical solutions in each embodiment may also be appropriately combined with each other to form other embodiments that can be understood by a person skilled in the art.