CN210137988U

CN210137988U - Chair with movable chair seat

Info

Publication number: CN210137988U
Application number: CN201920578537.4U
Authority: CN
Inventors: 华旭东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-03-13
Anticipated expiration: 2029-04-25

Abstract

A chair with a movable chair seat comprises chair legs, a chair seat and a chair back, wherein the chair seat is internally provided with a movable layered object, and the chair seat is also provided with a rotating device which enables the layered object on the upper surface to move towards the chair back. Among the prior art, the seat on the chair all is fixed structure basically, and the seat can not remove, and the people must rely on the people initiative to adjust the position of sitting after sitting on the chair, makes the position of sitting upright, makes the waist lean on the back of the chair, avoids back fatigue, also has the lazy scattered of some people's position of sitting, makes the waist unsettled cause muscle, lumbar vertebrae damage easily for a long time. In the application, the chair surface is provided with a layered object which can move towards the chair back, when a person sits on the layered object, the hip part is arranged on the layered object, the sitting posture is correct in a normal state, and the waist and the back lean against the chair back; when the sitting posture of the person is lazy, the buttocks move forwards, the waist is suspended, and at the moment, the layered object can move towards the chair back through the rotating device to drive the buttocks to move backwards, so that the sitting posture of the person is correct.

Description

Chair with movable chair seat

Technical Field

The utility model belongs to the field of seat furniture, concretely relates to mobilizable chair of seat.

Background

The chair is a furniture widely used in daily families and office places, and is used for people to rest, lie and sit and work. At present, the types of seats are various, but the seats generally have seat surfaces and chair legs, which are the simplest chairs, and the addition of the chair back enables the chair to have a backrest function, so that the back of a person can be supported, and the muscle fatigue of the back of the person during long-time office sitting is relieved.

Most office chairs all have chair backs, seat, chair foot structure now, and in order to alleviate the back fatigue of sitting for a long time, still be equipped with the bulge structure towards the waist on the back of the chair of some chairs for counterbalance with the waist when people's back, accord with the natural curve of people's health, alleviate fatigue. However, such chairs only support the waist when a person sits in a posture as standard as possible, which requires that the person's buttocks lean against the chair back as much as possible and the back sits upright; the practical situation is that most people sit and will have the buttock forward, present a lazy position of sitting, the waist is unsettled this moment, arouses fatigue more easily, has aroused the psoas injury even for a long time. If can move people's buttock to the back of the chair when needs, this problem of solution that can be fine makes people's position of sitting positive, and office state is good.

Based on the problems, the present application provides further design and improvement to the current chair structure.

SUMMERY OF THE UTILITY MODEL

Not enough to above prior art, the utility model provides a mobilizable chair of seat, the unsettled position of sitting of adjustment buttock forward waist that can be fine makes people's back straight, and the waist is supported, can effectively alleviate and sit produced tired sense for a long time.

In order to solve the above technical problem, the present invention solves the above technical problems.

A chair with a movable chair seat comprises chair legs, a chair seat and a chair back, wherein the chair seat is internally provided with a movable layered object, and the chair seat is also provided with a rotating device which enables the layered object on the upper surface to move towards the chair back.

Among the prior art, the seat on the chair all is fixed structure basically, and the seat can not remove, and the people must rely on the people initiative to adjust the position of sitting after sitting on the chair, makes the position of sitting upright, makes the waist lean on the back of the chair, avoids back fatigue, also has the lazy scattered of some people's position of sitting, makes the waist unsettled cause muscle, lumbar vertebrae damage easily for a long time. In the application, the chair surface is provided with a layered object which can move towards the chair back, when a person sits on the layered object, the hip part is arranged on the layered object, the sitting posture is correct in a normal state, and the waist and the back lean against the chair back; when the sitting posture of the person is lazy, the buttocks move forwards, the waist is suspended, and at the moment, the layered object can move towards the chair back through the rotating device to drive the buttocks to move backwards, so that the sitting posture of the person is correct.

In a specific embodiment, the left side and the right side of the chair seat are provided with chair seat supports, and the layer is arranged between the two chair seat supports. The structure ensures that the whole structure of the chair seat is stable, and the rotating device and the layered object are convenient to install.

In a specific embodiment, the rotating device includes a gear, and a synchronous belt or a chain disposed on the gear, the layer is disposed on the synchronous belt or the chain, and the gear is driven by a motor to rotate.

When the sitting posture of the person is lazy, the buttocks move forwards, the waist is suspended, the motor can work to drive the gear to rotate at the moment, the gear drives the synchronous belt or the chain to rotate, the layered object on the gear moves towards the chair back, the buttocks are driven to move backwards, and the sitting posture of the person is corrected. In the application, the motor can be started and closed by people through active control of a switch, and also can be controlled through a sensor and a control circuit, the sensor can be a pressure sensor distributed on a chair surface, when the sensor senses that most of pressure comes from the front end of the chair surface, the hip moves forwards, the motor works at the moment, and when a pressure signal is normal (the sitting position is normal), the motor is closed.

In a specific embodiment, a control key for controlling the motor is arranged on one of the seat supports and is used for manually controlling the motor to be turned on and off; the motor can be powered by a built-in battery in the chair, and can also be connected into a power grid through a plug and a wire for power supply.

In a specific embodiment, the gears form a driving gear set far away from the chair back and a driven gear set close to the chair back, and the driving gear set and the driven gear set are respectively symmetrically and rotatably arranged on the inner side of the chair surface support; two gears of the driving gear set are connected through a rotating shaft and keep synchronous rotation, and two gears of the driven gear set are connected through a rotating shaft and keep synchronous rotation; at least one gear in the driving gear set is driven to rotate by a motor. The structure is convenient to assemble, the gear can be fixed on the inner side of the seat support through the gear seat, the rotating seat, the pin shaft and other structures, and the motor can be arranged in the motor placing cavity of the seat support and used for driving.

In a specific embodiment, the rotating device comprises a one-way bearing or a flywheel and a synchronous belt or a chain arranged on the one-way bearing or the flywheel, and the layer is arranged on the synchronous belt or the chain. In the structure, the one-way bearing or the flywheel only enables the layered object on the upper surface to move towards the chair back, when the sitting posture is loose, the buttocks move forwards, the waist is suspended, and at the moment, the buttocks and the layered object can move towards the chair back by pedaling, so that the chair is very convenient.

In a specific embodiment, the one-way bearing or the flywheel forms a first rotating group far away from the chair back and a second rotating group close to the chair back, and the first rotating group and the second rotating group are respectively symmetrically arranged at the inner side of the chair surface bracket in a one-way rotating manner; and two one-way bearings or flywheels of the same rotating group are connected through a rotating shaft and keep synchronous rotation. The structure is convenient to assemble, the one-way bearing or the flywheel can be fixed on the inner side of the seat support through the mounting seat, the pin shaft and other structures, and the rotation is flexible.

In a specific embodiment, a plurality of supporting ribs/supporting rollers are arranged between the seat supports on the left side and the seat supports on the right side, the supporting ribs/supporting rollers are arranged on the lower portion of the layered object, and the supporting ribs/supporting rollers are used for supporting the pressure of a person when the person sits down and avoiding the layered object from excessively collapsing downwards.

In one specific embodiment, the layer is a cloth layer that is secured to a timing belt or chain.

In a specific implementation mode, a lumbar support bulge facing the seat surface is arranged on the seat back, so that a good supporting effect is achieved on the lumbar.

Compared with the prior art, the utility model discloses following beneficial effect has: the chair surface in the application is provided with the movable layered object, when the sitting posture of a person is not correct, the chair surface can move backwards, the hip of the person is inclined to the chair back, the sitting posture of the person is correct, the back is straight, the waist is supported, and the fatigue caused by sitting for a long time can be effectively relieved.

Drawings

Fig. 1 is a perspective view of a chair according to the present application.

Fig. 2 is a perspective view of a chair with a layer omitted in the present application.

Fig. 3 is a schematic view of a rotating device in the present application.

Fig. 4 is a perspective view of a chair with layers omitted according to another embodiment of the present invention.

Fig. 5 is a schematic view of a rotating device in the chair structure of fig. 4.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not construed as limiting the present invention, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it is to be understood that the term: the center, vertically, transversely, length, width, thickness, upper and lower, preceding, back, left and right, vertical, level, top, end, inside and outside, clockwise, anticlockwise etc. indicate position or positional relationship for based on the position or positional relationship that the drawing shows, just for the convenience of description the utility model discloses and simplified description, consequently can not be understood as the restriction of the utility model. Furthermore, the terms: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present invention, unless explicitly stated or limited otherwise, the terms: mounting, connecting, etc. should be understood broadly, and those skilled in the art will understand the specific meaning of the terms in this application as they pertain to the particular situation.

Referring to fig. 1 to 5, a chair with a movable seat according to the present invention includes legs 3, a seat, and a back 1, wherein the seat is provided with a movable layer 21, and a rotating device, the rotating device moves the layer 21 on the upper surface toward the back 1; the rotating device comprises a gear 51 and a synchronous belt or chain arranged on the gear 51, the layered object 21 is arranged on the synchronous belt or chain 5, the gear 51 is driven to rotate by a motor, the layered object 21 is preferably a cloth layer, and the cloth layer is fixed on the synchronous belt or chain 5. Specifically, as can be seen from fig. 2, the gear 51 forms a driving gear set far away from the chair back 1 and a driven gear set near the chair back 1, and the driving gear set and the driven gear set are respectively, symmetrically and rotatably arranged on the inner side of the chair surface support 2; two gears of the driving gear set are connected through a rotating shaft 6 and keep synchronous rotation, and two gears of the driven gear set are connected through the rotating shaft 6 and keep synchronous rotation; at least one gear in the driving gear set is driven to rotate by a motor. The structure is convenient to assemble, the gear can be fixed on the inner side of the seat support through the gear seat, the rotating seat, the pin shaft and other structures, and the motor can be arranged in the motor placing cavity of the seat support and used for driving.

In this embodiment, the seat supports 2 are disposed on the left and right sides of the seat, and the layer 21 is disposed between the two seat supports 2, so that the overall structure is stable, and the rotating device and the layer are convenient to install. Moreover, a control key 4 for controlling the motor is arranged on one of the seat supports 2 and is used for manually controlling the motor to be turned on and off; the motor can be powered by a built-in battery in the chair, and can also be connected into a power grid through a plug and a wire for power supply. The installation mode and the circuit connection control mode of the motor are the prior art at present. In addition, in the application, the motor can be started and stopped by a sensor and a control circuit, the sensor can be a pressure sensor distributed on the seat, when the sensor senses that most of pressure comes from the front end of the seat, the hip is indicated to move forwards, the motor is enabled to work at the moment, and when a pressure signal is normal (the sitting position is normal), the motor is stopped.

In this application, be equipped with the lumbar support arch 11 towards the seat on the back of the chair 1, play fine supporting role to the waist.

In another embodiment of the present application, a plurality of support ribs or support rollers 7 are disposed between the seat supports 2 on the left and right sides, the support ribs or support rollers 7 are disposed on the lower portion of the layer 21, and the support ribs/support rollers 7 are used for supporting the pressure of a person sitting down to prevent the layer from excessively collapsing downwards.

In another embodiment of the present application, the general structure is the same as the above embodiment, with the difference that: the rotating device comprises a one-way bearing or a flywheel and a synchronous belt or a chain arranged on the one-way bearing or the flywheel, and the layered object 21 is arranged on the synchronous belt or the chain. In the structure, the one-way bearing or the flywheel only enables the layered object 21 on the upper surface to move towards the chair back 1, when the sitting posture is loose, the buttocks move forwards, the waist is suspended, and at the moment, the buttocks and the layered object can move towards the chair back by pedaling, so that the chair is very convenient. The one-way bearing or the flywheel forms a first rotating group far away from the chair back and a second rotating group close to the chair back, and the first rotating group and the second rotating group are respectively symmetrical and can be arranged on the inner side of the chair surface bracket in a one-way rotating manner; and two one-way bearings or flywheels of the same rotating group are connected through a rotating shaft and keep synchronous rotation. The structure is convenient to assemble, the one-way bearing or the flywheel can be fixed on the inner side of the seat support through the mounting seat, the pin shaft and other structures, and the rotation is flexible.

In the prior art, the seat surface on the chair is basically of a fixed structure, the seat surface cannot move, and people can actively adjust the sitting posture after sitting on the chair. In the application, the chair surface is provided with a layer-shaped object 21 which can move towards the chair back, when a person sits on the chair, the buttocks are placed on the layer-shaped object 21, the sitting posture is correct under the normal state, and the waist and the back lean against the chair back; when the sitting posture of the person is lazy, the buttocks move forwards, the waist is suspended, the gear 51 can be driven to rotate by the motor, the gear 51 drives the synchronous belt or the chain 5 to rotate, the layered object 21 on the gear moves towards the chair back, the buttocks are driven to move backwards, and the sitting posture of the person is corrected.

More than, the utility model provides a mobilizable chair of seat has changed fixed knot structure's seat on the conventional chair, has portable lamellar thing on the seat in this application, can move backward when the people position of sitting is not held in good time, makes the buttock intention back of the chair of people, makes the people position of sitting erect, and the back is upright, and the waist is supported, can effectively alleviate and sit produced tired sense for a long time.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims

1. A chair with a movable chair seat comprises chair legs (3), the chair seat and a chair back (1), and is characterized in that a movable layered object (21) is arranged in the chair seat, and a rotating device is further arranged, wherein the rotating device enables the layered object (21) on the upper surface to move towards the chair back (1).

2. Chair with movable seat according to claim 1, characterised in that the seat is provided with seat supports (2) on the left and right sides, and that the layer (21) is arranged between the two seat supports (2).

3. A chair with movable seat according to claim 2, wherein the rotating means comprises a gear (51), a timing belt or chain arranged on the gear (51), the layer (21) is arranged on the timing belt or chain, and the gear (51) is driven by a motor to rotate.

4. A chair with movable seat according to claim 3, characterised in that one of the seat supports (2) is provided with control keys (4) for controlling the motor.

5. A chair with a movable chair seat as claimed in claim 3, wherein the gears (51) are composed of a driving gear set far away from the chair back (1) and a driven gear set near the chair back (1), and the driving gear set and the driven gear set are respectively symmetrically and rotatably arranged at the inner side of the chair seat bracket (2); two gears of the driving gear set are connected through a rotating shaft (6) and keep rotating synchronously, and two gears of the driven gear set are connected through the rotating shaft (6) and keep rotating synchronously; at least one gear in the driving gear set is driven to rotate by a motor.

6. A chair with movable seat according to claim 2, wherein the rotating means comprises a one-way bearing or flywheel, a timing belt or chain arranged on the one-way bearing or flywheel, and the layer (21) is arranged on the timing belt or chain.

7. A chair with a movable chair seat as claimed in claim 6, wherein the one-way bearing or flywheel comprises a first rotation group far away from the chair back (1) and a second rotation group near the chair back (1), and the first rotation group and the second rotation group are respectively and symmetrically arranged on the inner side of the chair seat bracket (2) in a one-way rotation manner; and two one-way bearings or flywheels of the same rotating group are connected through a rotating shaft (6) and keep synchronous rotation.

8. Chair with movable seat according to claim 2, characterized in that between the seat supports (2) on the left and right sides there are arranged several support bars/support rollers (7), said support bars/support rollers (7) being arranged in the lower part of the layer (21).

9. Chair with movable seat according to claim 1, characterized in that the layer (21) is a cloth layer fixed to a timing belt or chain.

10. Chair with movable seat according to any of claims 1 to 9, characterised in that the backrest (1) is provided with lumbar support protrusions (11) directed towards the seat.