Patentable/Patents/US-20250359651-A1
US-20250359651-A1

Pool Cleaning Tool

PublishedNovember 27, 2025
Assigneenot available in USPTO data we have
Inventorsnot available in USPTO data we have
Technical Abstract

A pool cleaning tool includes a main frame and bristles extending therefrom, wherein the main frame has at least a locking pin hole; at least a side brush comprising a side brush frame and bristles extending therefrom, wherein the side brush frame has a through hole; a locking element comprising a head and a pin shaft connected therewith, wherein the size of the end of the pin shaft far from the head is larger than the through hole, the pin shaft is made of elastic material, such that the pin shaft can pass through the locking pin hole and the through hole to detachably connect the main brush with the at least one side brush. The present disclosure can achieve the purpose of enhancing the stability of the connection between the side brush and the main brush.

Patent Claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

. A pool cleaning tool comprising:

2

. The pool cleaning tool of, wherein the pin shaft () has at least one groove () at the end far from the head.

3

. The pool cleaning tool of, wherein the pin shaft () has two grooves () at the end far from the head and the two grooves () are positioned in a cross manner.

4

. The pool cleaning tool of, wherein each side brush frame () has a counterbore extending around the through hole () and the counterbore is the same shape as the head ().

5

. The pool cleaning tool of, wherein the end of the pin shaft () far from the head is spherical or ellipsoidal.

6

. The pool cleaning tool of, wherein the shape of the counterbore and head () is circular.

7

. The pool cleaning tool of, wherein the shape of the counterbore and head () is square or rectangular.

8

. The pool cleaning tool of, wherein there are two side brushes () and the two side brushes () are detachably connected to two opposite sides of the main frame ().

9

. The pool cleaning tool of, wherein the main frame () has an extending portion ().

10

. The pool cleaning tool of, wherein there is an extending assembly adjustably attached to the extending portion ().

11

. The pool cleaning tool of, wherein the extending assembly comprises: an extending element () attached to the extending portion (), wherein the extending element () has a threaded structure () and a hollow elastic portion () far from the main brush (); and a threaded sleeve () with a smaller size than the elastic portion at one end and a larger size than the elastic portion at the other end;

12

. The pool cleaning tool of, wherein the extending element () comprises: two connecting elements (), each connecting element () has a first tooth structure () and a second tooth structure (), wherein the extending portion () has two first internal tooth structures (), the first internal tooth structures () can be fitted with the first tooth structures () respectively, wherein the extending element () has a second internal tooth structure (), the second internal tooth structure () can be fitted with the second tooth structures (), wherein the two connecting elements () are configured to move between a first state and a second state, when the two connecting elements () are in the first state, at least one of the first internal tooth structures () is engaged with one of the first tooth structures (), and when the two connecting elements () are in the second state, the first internal tooth structures () are disengaged with the first tooth structures () respectively.

13

. The pool cleaning tool of, wherein the extending element () further comprises an elastic element () positioned between the two connecting elements (), wherein the elastic element () is configured to drive the two connecting elements () from the second state to the first state.

14

. The pool cleaning tool of, wherein the extending element () further comprises two buttons () connected to the connecting elements () respectively.

15

. The pool cleaning tool of, wherein the two connecting elements () are positioned coaxially and symmetrically with respect to each other.

16

. The pool cleaning tool of, wherein the connecting elements (), the elastic element (), and the second internal tooth structure () are positioned between the two first internal tooth structures ().

17

. The pool cleaning tool of, wherein the second tooth structures () have a larger outside diameter than the first tooth structures (), and the second tooth structures () are closer to the plane of symmetry of the two connecting elements () than the first tooth structures ().

18

. The pool cleaning tool of, wherein the two buttons () protrude above the first internal tooth structures () from two opposite directions.

19

. The pool cleaning tool of, wherein each of the connecting elements () has a threaded through hole (), each of the buttons () has a threaded portion (), and the threaded portions () fit into the threaded through holes () respectively.

20

. The pool cleaning tool of, wherein two ends of the elastic element () are connected to the two threaded portions () respectively.

Detailed Description

Complete technical specification and implementation details from the patent document.

This invention relates to spool equipment, and in particular to a pool cleaning tool.

Existing pool cleaning brushes typically consist of a main brush, often equipped with side brushes for targeting hard-to-reach areas. These side brushes are crucial for cleaning corners and angled wall sections close to the pool floor, areas that the main brush may not adequately reach.

However, a common issue with conventional pool cleaning brushes is the stability of the connection between the main brush and the side brushes. Traditional designs utilize locking pins and springs to attach the side brushes to the main brush. While this method allows for detachability, it often results in instability, with the side brushes becoming detached during use due to vibrations. Consequently, there is a need for an improved connection mechanism that ensures the stable attachment of side brushes to the main brush, enhancing the overall efficiency and effectiveness of pool cleaning tools. The prior art also encompasses various extending assemblies designed to extend the reach of pool cleaning tools. These assemblies aim to provide adjustability and versatility in cleaning different pool sizes and configurations. However, existing extending assemblies may lack ease of use or robustness, limiting their practicality and effectiveness in real-world applications. Addressing these limitations in the related art, the present invention introduces a novel pool cleaning tool with an improved connection mechanism between the main brush and side brushes, as well as an innovative extending assembly for enhanced functionality and user experience.

As such, the connection between the main brush and side brushes needs to be more stable.

Furthermore, in many existing pool cleaning tool designs, the extending rod and main brush lack the necessary adjustability to accommodate the diverse configurations of pools encountered in both residential and commercial settings. This lack of adaptability not only restricts the tool's effectiveness in reaching all areas of the pool but also hampers its ability to provide thorough cleaning in spaces with unique shapes or dimensions. Consequently, certain regions may remain untouched by the cleaning process, allowing debris and contaminants to accumulate unchecked, thereby compromising the overall cleanliness and hygiene of the pool environment. To be specific, the rod cannot rotate relative to the brush, depriving users of the flexibility needed to address hard-to-reach areas and corners effectively. This limitation underscores the critical need for an innovative solution that integrates adjustable features into the design, enabling users to customize the tool's configuration according to specific pool layouts and cleaning requirements. Such advancements would not only enhance the tool's efficiency and performance but also contribute to a cleaner and healthier swimming environment for users.

Given these limitations, it becomes evident that there is a pressing need for an innovative pool cleaning tool that not only ensures a stable connection between the main brush and side brushes but also incorporates adjustable features for both the extending rod and main brush. By addressing these shortcomings, such enhancements would empower users to achieve comprehensive cleaning results across a wide range of pool layouts, regardless of their complexity or size. This, in turn, would significantly improve overall maintenance efficiency and user satisfaction, ultimately enhancing the enjoyment and longevity of pool ownership.

Additionally, it's worth noting that in some instances, the adjustment structure of the rod and the main brush may be accidentally triggered, potentially leading to unintended changes in the tool's configuration during operation. This unintentional adjustment can result in suboptimal cleaning performance or even equipment damage if not promptly rectified. Therefore, there is a need for robust locking mechanisms or safeguards to prevent accidental adjustments and maintain the desired settings throughout the cleaning process, ensuring consistent and effective pool maintenance. To be specific, there is just one button to trigger the adjustment structure, which may inadvertently lead to unintentional adjustments if pressed accidentally during use. This single-button design, while intended to facilitate ease of operation, also increases the risk of inadvertent activation, potentially disrupting the tool's intended configuration and compromising cleaning performance. Thus, careful consideration must be given to the design and placement of this button to minimize the likelihood of accidental triggers and ensure smooth and uninterrupted operation of the pool cleaning tool.

It is an object of the present technology to ameliorate at least some of the inconveniences present in the prior art.

According to one aspect of the present technology, there is provided a pool cleaning tool comprising: a pool cleaning tool comprising: a main brush comprising a main frame and bristles extending therefrom, wherein the main frame has at least a locking pin hole; at least a side brush comprising a side brush frame and bristles extending therefrom, wherein the side brush frame has a through hole; a locking element comprising a head and a pin shaft connected therewith, wherein the size of the end of the pin shaft far from the head is larger than the through hole, the pin shaft is made of elastic material, such that the pin shaft can pass through the locking pin hole and the through hole to detachably connect the main brush with the at least one side brush.

In some embodiments, the pin shaft has at least one groove at the end far from the head.

In some embodiments, the pin shaft has two grooves at the end far from the head and the two grooves are positioned in a cross manner.

In some embodiments, each side brush frame has a counterbore extending around the through hole and the counterbore is the same shape as the head.

In some embodiments, the end of the pin shaft far from the head is spherical or ellipsoidal.

In some embodiments, the shape of the counterbore and head is circular.

In some embodiments, the shape of the counterbore and head is square or rectangular.

In some embodiments, there are two side brushes, and the two side brushes are detachably connected to two opposite sides of the main frame.

In some embodiments, wherein the main frame has an extending portion.

In some embodiments, wherein there is an extending assembly adjustably attached to the extending portion.

In some embodiments, the extending assembly comprises an extending element attached to the extending portion, wherein the extending element has a threaded structure and a hollow elastic portion far from the main brush; and a threaded sleeve with a smaller size than the elastic portion at one end and a larger size than the elastic portion at the other end; wherein the threaded sleeve detachably connects to the extending element by the threaded structure, such that the connection between the threaded sleeve and the extending element causes axial pressure on the elastic portion by the smaller end of the threaded sleeve.

In some embodiments, the extending element comprises: two connecting elements, each connecting element has a first tooth structure and a second tooth structure, wherein the extending portion has two first internal tooth structures, the first internal tooth structures can be fitted with the first tooth structures respectively, wherein the extending element has a second internal tooth structure, the second internal tooth structure can be fitted with the second tooth structures, wherein the two connecting elements are configured to move between a first state and a second state, when the two connecting elements are in the first state, at least one of the first internal tooth structures is engaged with one of the first tooth structures, and when the two connecting elements are in the second state, the first internal tooth structures are disengaged with the first tooth structures respectively.

In some embodiments, the extending element further comprises an elastic element positioned between the two connecting elements, wherein the elastic element is configured to drive the two connecting elements from the second state to the first state.

In some embodiments, wherein the extending element further comprises two buttons connected to the connecting elements respectively.

In some embodiments, the two connecting elements are positioned coaxially and symmetrically with respect to each other.

In some embodiments, the connecting elements, the elastic element, and the second internal tooth structure are positioned between the two first internal tooth structures.

In some embodiments, the second tooth structures have a larger outside diameter than the first tooth structures, and the second tooth structures are closer to the plane of symmetry of the two connecting elements than the first tooth structures.

In some embodiments, wherein the two buttons protrude above the first internal tooth structures from two opposite directions.

In some embodiments, each of the connecting elements has a threaded through hole, each of the buttons has a threaded portion, and the threaded portions fit into the threaded through holes respectively.

In some embodiments, wherein two ends of the elastic element are connected to the two threaded portions respectively.

Embodiments of the present technology each have at least one of the above-mentioned objects and/or aspects, but do not necessarily have all of them. It should be understood that some aspects of the present technology that have resulted from attempting to attain the above-mentioned object may not satisfy these objects and/or may satisfy other objects not specifically recited herein.

Additional and/or alternative features, aspects and advantages of embodiments of the present technology will become apparent from the following description, the accompanying drawings and the appended claims.

All illustrations of the drawings are for the purpose of describing selected versions of the present invention and are not intended to limit the scope of the present invention.

While the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will be described herein in detail. It should be understood, however, that there is no intent to limit the concepts of the present disclosure to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives consistent with the present disclosure and the appended claims.

Throughout the detailed description of the invention, various terms and phrases are utilized to describe the innovative features and functionalities. It is important to note that while specific terminology is employed for clarity and illustration, the invention is not limited to these particular words or expressions.

For instance, terms such as “pool cleaning tool,” “main brush,” “side brushes,” and “locking element” are used to describe components of the invention. However, these terms are not exclusive, and alternative words or phrases may also adequately convey the same concepts. Examples include “pool maintenance device,” “primary brush,” “auxiliary brushes,” and “attachment mechanism,” among others.

Similarly, descriptive phrases such as “detachably connected,” “locking mechanism,” and “adjustable assembly” are employed to elucidate the operation and functionality of the invention. Nonetheless, alternative language that conveys similar meanings, such as “removably attached,” “fastening system,” and “modular configuration,” may be equally applicable in describing the inventive features.

Therefore, it is essential to interpret the language used in the detailed description in a broad and inclusive manner, recognizing that the invention encompasses a range of terminology that effectively communicates its principles and functionalities. The choice of specific words or phrases does not limit the scope of the invention, which is defined by the appended claims.

Referring now to, the illustrative pool cleaning toolcomprises a main brush, two side brushesconnecting with the main brush. The side brushes are used for cleaning hard-to-reach areas of pools. In some embodiments, there is only one side brush connecting with the main brush.

Referring to, the side brushes are connected to the main brushby two locking elements. The main brush comprises a main frameand bristles extending from the main frame, each of the side brushescomprises a side brush frameand bristles extending from the side brush frame. In some embodiments, at least a part of the bristles on the side brush frameextends towards an angle different from the bristles on the main frame.

In some embodiments, the bristle is interchangeable and can be replaced as needed to maintain optimal cleaning performance. This feature allows users to easily swap out worn or damaged bristles without the need for specialized tools or extensive maintenance procedures, ensuring the continued effectiveness of the pool cleaning tool over time. Additionally, interchangeable bristles offer the flexibility to adapt the cleaning tool to different pool surfaces or debris types, further enhancing its versatility and usability.

Referring to, the main framehas two locking pin holes, and each of the side brushes has a through hole. Each of the locking elementscomprises a headand a pin shaftconnected with the head. The pin shaft has a restriction portionwith a larger size than the through holeat the end of the pin shaftfar from the head, and the pin shaftis made of elastic material.

In some embodiments, the restriction portionis spherical or ellipsoidal.

The pin shaftcan consecutively pass through the locking pin holeand the through holedue to the elasticity of the pin shaft. The main frameand the side brush frameare therefore firmly attached under the restriction of the headand the restriction portion. The restriction portioncan be pressed axially inwards by users to remove the pin shaftso that the main frameand the side brush framecan be detached.

In some embodiments, the distance between the restriction portionand the headis shorter than the total length of the locking pin holesand the through hole. The restriction portionand the headprovide sustained compression force so the connection between the main brush frameand the side brush frameis stable.

In some embodiments, each of the side brush frameshas a counterbore extending around the through holeand the counterbore is the same shape as the head, such that the headcan be fitted with the counterbore. In some embodiments, the shape of the counterbore and headis square or rectangular.

In some embodiments, the shape of the counterbore and headis circular. By opting for a circular design, potential issues associated with irregular shapes, such as alignment difficulties or jamming, are mitigated. The users do not have to turn the headwhile fitting the headinto the counterbore, ensuring a more straightforward and user-friendly experience.

In some embodiments, the pool cleaning toolfurther comprises a second locking element, providing an additional layer of security and stability to the connection between the main brushand side brushes. This second locking element, similar to the primary locking mechanism described earlier, may employ a head and pin shaft configuration made of elastic material to facilitate easy attachment and detachment of the side brushes. By incorporating a second locking element, the pool cleaning tool enhances its resistance to detachment and ensures consistent performance even under varying pool cleaning conditions.

Further, the pin shafthas a grooveat the end far from the head. In some embodiments, the pin shafthas two groovesand the two groovesare positioned in a cross manner.

Referring toand, the pool cleaning tool further comprises an extending assembly adjustably connected with the main brush. Further, the main framehas an extending portion, and the extending assembly is adjustably attached to the extending portion. In some embodiments, the extending assembly is rotatably attached to the extending portion.

The extending assembly comprises an extending elementand a threaded sleeve. One end of the extending elementis adjustably connected with the extending portion, and the other end of the extending elementhas a threaded structureand a hollow elastic portion. The hollow elastic portioncan be pressed axially inwards, such that the hollow elastic portioncan clutch external extending parts such as a rod inwards. In some embodiments, the hollow elastic portionhas at least a cut, which enhances the elasticity of the hollow elastic portion. In some embodiments, the hollow elastic portionhas six cuts.

In some embodiments, the extending elementmay feature additional adjustment points or a telescoping design, providing users with enhanced flexibility in customizing the length and configuration of the extending element to suit their specific pool cleaning needs. The inclusion of additional adjustment points allows for finer control over the extension length, while a telescoping design enables smooth and easy expansion or retraction of the extending element to accommodate varying pool depths and contours. This increased adjustability ensures optimal reach and coverage during cleaning, enhancing the overall effectiveness and efficiency of the pool cleaning tool.

Patent Metadata

Filing Date

Unknown

Publication Date

November 27, 2025

Inventors

Unknown

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Cite as: Patentable. “Pool Cleaning Tool” (US-20250359651-A1). https://patentable.app/patents/US-20250359651-A1

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