Convertible Chair-Bed

The present disclosure relates to the technical field of convertible chair-beds, and in particular, to a convertible chair-bed.

A convertible chair-bed is a bed structure that can be used as both a bed and a chair, and can adapt to different postures of a human body through deformation. To implement various functional states, the current convertible chair-bed needs to be provided with a motor as a power component for each functional state. In expansion of functions of the convertible chair-bed, too many motors may bring inconvenience.

In view of this, the present disclosure provides a convertible chair-bed. A plurality of functions are switched by using two power components, thereby solving or at least solving the following problem: To implement various functional states, the convertible chair-bed in the existing art needs to be provided with a motor as a power component for each functional state.

In order to achieve the above objectives, the present disclosure provides a convertible chair-bed, including:

In the above-mentioned convertible chair-bed, optionally, the movable bed frame is arranged on the fixed bed frame in a manner of moving in a front-back direction.

When the bed surface is in a flat and straight state and the front end of the leg frame body is in an upswing state, the movable bed frame is entirely located at an extreme position of a front end of the fixed bed frame.

When the movable bed frame is located at an extreme position of a rear end of the fixed bed frame, the tail frame body is in a state that a tail end tilts downwards.

In the above-mentioned convertible chair-bed, optionally, first rails are arranged at four corners inside the fixed bed frame; and a first roller that moves inside the first rails is arranged at a bottom of the movable bed frame.

In the above-mentioned convertible chair-bed, optionally, the rotating stand includes:

In the above-mentioned convertible chair-bed, optionally, a second rail is arranged at a bottom of the leg frame body; and a second roller that moves inside the second rail is arranged at the rear end of the rotating arm.

In the above-mentioned convertible chair-bed, optionally, two rotating arms are included; and the two rotating arms are symmetrically distributed on two sides of the shaft body part.

In the above-mentioned convertible chair-bed, optionally, the connecting frame includes:

In the above-mentioned convertible chair-bed, optionally, one diagonal stay is arranged on each of two sides of the tail frame body; and the diagonal stays are located on an outer side of the fixed bed frame in a width direction.

In the above-mentioned convertible chair-bed, optionally, both the first telescopic rod and the second telescopic rod are electrical telescopic rods.

By using the first telescopic rod and the second telescopic rod as power, the convertible chair-bed of the present disclosure can switch between four postures of serving as a bed, serving as a chair, helping stand up, and raising legs, and has a simple structure and an outstanding effect.

The technical solutions in the embodiments of the present disclosure are clearly and completely described below. Apparently, the described embodiments are merely some embodiments of the present disclosure, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of present disclosure without making creative efforts shall fall within the protection scope of present disclosure.

As shown into, a convertible chair-bed provided by this embodiment includes a fixed bed frame, a movable bed frame, a head frame body, a hip frame body, a leg frame body, and a tail frame bodythat can form a bed surface, and a rear extension rod, a diagonal stay, a rotating stand, a first telescopic rod, a second telescopic rod, and a connecting frame. Both the first telescopic rodand the second telescopic rodare electrical extension rods.

The head frame body, the hip frame body, the leg frame body, and the tail frame bodyare rotatably connected in sequence, and both the head frame bodyand the hip frame bodyare lapped on the movable bed frame. Two ends of the diagonal stayare respectively rotatably connected to a front end of the tail frame bodyand the fixed bed frameto support the tail frame bodyto be in a flat and straight state.

The rear extension rodis fixedly arranged at a bottom of the hip frame body. Specifically in this embodiment, one rear extension rodis arranged on each of two sides of the bottom of the hip frame body, and the two rear extension rodsare respectively clung to inner walls of two sides of the movable bed frame. Rear ends of the rear extension rods () are rotatably connected to the movable bed frame (), and the leg frame body () is simultaneously lapped on the movable bed frame () and the rear extension rods (), so that the leg frame body () is supported in a flat and straight state.

The rotating stand () is rotatably mounted on the movable bed frame (). A tail end of the rotating stand () is connected to the leg frame body (). The rotating stand () can swing backwards through a rear end of the rotating stand to control a front end of the leg frame bodyto swing upwards. When the leg frame bodyswings upwards, the legs of a human body can be raised. In this process, namely, in the process that the tail frame bodyuses a top end of the diagonal stay as a fulcrum to swing upwards at the front end,

Two ends of the second telescopic rodare respectively rotatably connected to the head frame bodyand the movable bed frame. Specifically in this embodiment, a front end of the second telescopic rodis an extending end. When the front end of the second telescopic rodextends, a front end of the head frame bodycan be controlled to swing upwards. After swinging upwards, the front end of the head frame bodycan support the back and head of a human body when the human body is in a sitting posture.

The connecting frameis arranged between the second telescopic rodand the head frame body. After a front end of the movable bed frameswings in a largest angle relative to the hip frame body, the head frame body, the hip frame body, and the leg frame bodycan be controlled to overall tilt backwards under the action of the second telescopic rod. In this case, a person in a sitting posture leans backwards to ensure that the feet of the person hit the ground first when the person gets up, so as to achieve a function of helping stand up.

The movable bed framecan be arranged on the fixed bed framein a manner of moving in a front-back direction.

When the bed surface is in a flat and straight state and the front end of the leg frame bodyis in an upswing state, the movable bed frameis entirely located at an extreme position of a front end of the fixed bed frame.

When the movable bed frameis located at an extreme position of a rear end of the fixed bed frame, the tail frame bodyis in a state that a tail end tilts downwards.

In a relatively specific embodiment in which the movable bed framecan be movably arranged on the fixed bed frame, first railsare arranged at four corners inside the fixed bed frame. A first rollerthat moves inside the first railsis arranged at a bottom of the movable bed frame.

In a relatively specific embodiment of controlling, by the rotating standthrough rotation, the leg frame bodyto swing, the rotating standincludes:

When the extending end of the first telescopic rodacts, the hinge plate.drives the shaft body part.to rotate, and the shaft body part.drives the rotating arm.to swing, thereby controlling the leg frame bodyto swing by using the rotating arm..

In a relatively specific embodiment of connecting the rotating standwith the leg frame body, a second railis arranged at a bottom of the leg frame body; and a second rollerthat moves inside the second railis arranged at the rear end of the rotating arm.. In the swinging process of leg frame body, the second rollermoves inside the second rail.

In a relatively specific embodiment, two rotating arms.included; and the two rotating arms.are symmetrically distributed on two sides of the shaft body part.. This can improve the balance of the leg frame bodyand the stability of supporting for a human body.

As a relatively specific embodiment of the connecting frame, the connecting frameincludes:

After the front side surface of the rotating part.is in contact with the limiting part., as the rear end of the second telescopic rodcontinues to extend, a force may be applied to the hip frame bodythrough the limiting part., ultimately causing the head frame body, the hip frame body, and the leg frame bodyto overall tilt backwards.

One diagonal stayis arranged on each of two sides of the tail frame body, and the diagonal staysare located on an outer side of the fixed bed framein a width direction. The rotation of the diagonal staysis not interfered by the fixed bed frame. In the process that the hip frame body, the head frame body, and the leg frame bodyoverall tilt backwards, the top ends of the diagonal staysswing downwards to cause the leg frame bodyto be in a vertical state. When a person is helped to stand up, it is convenient for the person to stand up on the ground with the feet, thereby enhancing the effect of helping stand up

This embodiment has the following working process:

Firstly, in an initial state, the movable bed frameis located at the extreme position at the front end on the fixed bed frame, and the head frame body, the hip frame body, the leg frame body, and the tail frame bodyare located on the same plane to form the bed surface. This state is a state in which the convertible chair-bed is used as a bed.

Secondly, since the extending end of the first telescopic rodretracts backwards, through the rotation of the rotating stand, a tail end of a leg bedstead swings upwards, and a tail bedstead may do an action of swinging up at the front end and swinging down at the tail end under the action of the diagonal stays. Then, the extending end of the second telescopic rodextends forwards to make the front end of the head frame bodyswing upwards, which can adjust a person from a lying posture to a sitting posture in which the legs bend up.

Thirdly, the extending end of the first telescopic rodextends backwards, which will push the movable bed frame to move backwards to the extreme position at the rear end. In this case, the rear end of the tail frame bodycan swing downwards under the action of the gravity and tend to be in a vertical state. The extending end of the second telescopic rodextends forwards, so that the front end of the head frame bodycan swing upwards, which adjusts the person from the lying posture to the sitting posture. Afterwards, as the extending end of the second telescopic rodcontinues to extend forwards, the connecting frameis used to make the head frame body, the hip frame body, and the leg frame bodyoverall tilt backwards, which can help the person in the sitting posture stand up from the convertible chair-bed to the ground, achieving the effect of helping stand up.

The technical scope of the present disclosure is not limited to the content in the above specification. Those skilled in the art can make various transformations and modifications to the above implementations without departing from the technical idea of the present disclosure, and these transformations and modifications should all fall within the scope of the present disclosure.