Self-adaptive back-chasing device

Abstract

The utility model discloses a self-adaptive back-chasing device, and belongs to the field of seats. Comprising a seat; a backrest; one end of the adjusting assembly is connected to the seat, the other end of the adjusting assembly is connected to the backrest, and the backrest moves towards the back of the user by pressing down the seat, so that the backrest is tightly attached to the back of the user; the adjusting assembly comprises a fixing part fixedly arranged at the bottom of the seat; one end of the connecting plate is fixedly connected to the backrest; a bottom plate; one end of the air pressure rod is hinged to the bottom plate, and a piston rod on the air pressure rod is hinged to the fixing piece; the bracket is fixedly arranged on the bottom plate; one end of the first connecting rod is hinged to the fixing piece, and the other end is rotationally connected to the connecting plate; one end of the second connecting rod is rotationally connected to the bracket, and the other end is rotationally connected to the connecting plate. The self-adaptive back-chasing device has the beneficial effect that the self-adaptive back-chasing device facilitating simultaneous adjustment of the seat and the backrest is provided.

Description

Technical Field

[0001] The present application relates to the field of seats, and in particular to an adaptive backrest. Background Art

[0002] A chair is a kind of seat with a backrest and sometimes armrests. In ancient times, people sat on the ground and there were no chairs. "Chair" was originally the name of a piece of wood.

[0003] With the progress of the times, living conditions and living standards are getting better and better, and people are paying more and more attention to their own health. In today's society, there are more and more ergonomic chairs, but most ergonomic chairs are designed for adults. Now there are more and more subjects for children to study, so children spend a lot of time sitting in chairs every day, and children often don't pay much attention to their sitting posture, which will cause posture problems caused by poor sitting posture. Children are in the development stage, and if they are not adjusted in time, it will affect their development.

[0004] The seats in the prior art also have the functions of adjusting the height and the tilt angle of the seat back, but the two adjustment functions are separate. The user needs to perform two adjustment operations to adjust the sitting height of the seat and the tilt angle of the seat back. The adjustment operation is cumbersome and inconvenient. Utility Model Content

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide an adaptive back-tracking system, including:

[0007] Seats;

[0008] Backrest;

[0009] An adjustment component, one end of which is connected to the seat and the other end is connected to the backrest, and the backrest is moved toward the user's back by pressing down the seat so that the backrest is closely attached to the user's back;

[0010] The adjustment components include:

[0011] A fixing part, fixed to the bottom of the seat;

[0012] A connecting plate, one end of which is fixedly connected to the backrest;

[0013] Base plate;

[0014] A gas pressure rod, one end of which is hingedly connected to the bottom plate, and a piston rod on the gas pressure rod is hingedly connected to a fixing member;

[0015] A bracket, fixed on the bottom plate;

[0016] A first connecting rod, one end of which is hingedly connected to the fixing member, and the other end of which is rotatably connected to the connecting plate;

[0017] The second connecting rod has one end rotatably connected to the bracket and the other end rotatably connected to the connecting plate.

[0018] When the user sits on the seat, the fixing member is pressed down, so that the fixing member drives the first connecting rod to rotate around the connecting plate, and the first connecting rod pushes the connecting plate to move toward the backrest, so that the backrest moves toward the user's back and supports the user's back. Therefore, the backrest can be adjusted inclination angle by adjusting the seat height while adjusting the backrest without adjusting the backrest.

[0019] Further, the first connecting rod comprises:

[0020] A first connecting portion, one end of which is hingedly connected to the fixing member;

[0021] The second connection part has one end fixed on the first connection part and the other end rotatably connected to the connection plate, and one end of the second connection part close to the first connection part is rotatably connected to the bracket through a pin shaft.

[0022] Furthermore, the length of the second connecting portion is greater than the length of the second connecting rod.

[0023] Furthermore, the second connecting portion and the second connecting rod are arranged in parallel.

[0024] Furthermore, the adjustment component also includes:

[0025] The support rod has one end hingedly connected to the bottom plate and the other end hingedly connected to the fixing member.

[0026] Furthermore, the fixing member comprises:

[0027] Fixed plate;

[0028] A fixing block, fixed on the fixing plate, and one end of which is fixed to the bottom of the seat by a screw;

[0029] A long slot is provided on the fixing plate, and the piston rod of the supporting rod and the gas pressure rod are both inserted into the long slot and are rotatably arranged through a pin shaft.

[0030] Furthermore, a first through hole and a second through hole are provided on the piston rod and the support rod of the gas pressure rod, and the first through hole and the second through hole are coaxially arranged.

[0031] The beneficial effect of the present application is that it provides an adaptive backrest that is convenient for adjusting the seat and the backrest at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0033] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0034] In the attached picture:

[0035] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0036] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing an adjustment component 1;

[0037] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the adjustment component 2;

[0038] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing a first connecting rod;

[0039] Figure 5 yes Figure 3 Enlarged view of part A.

[0040] Reference numerals:

[0041] 1. Seat; 2. Backrest; 3. Adjustment assembly; 4. Fixing piece; 5. Connecting plate; 6. First connecting rod; 7. Bottom plate; 8. Gas pressure rod; 9. Bracket; 10. Support rod; 11. First connecting part; 12. Second connecting part; 13. Second connecting rod; 14. Fixing plate; 15. Fixing block; 16. Long slot; 17. First through hole; 18. Second through hole. DETAILED DESCRIPTION

[0042] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0043] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0044] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0045] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0046] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0047] Reference Figure 1-5 , adaptive back-tracking, including a seat 1, a backrest 2, and an adjustment component 3; one end of the adjustment component 3 is connected to the seat 1, and the other end is connected to the backrest 2. By pressing down the seat 1, the backrest 2 moves toward the user's back, so that the backrest 2 is close to the user's back. The adjustment component 3 includes a fixing member 4, a connecting plate 5, a first connecting rod 6, a bottom plate 7, a gas pressure rod 8, a bracket 9, and a second connecting rod 13; the fixing member 4 is fixed to the bottom of the seat 1, one end of the connecting plate 5 is fixed to the backrest 2, one end of the first connecting rod 6 is hingedly connected to the fixing member 4, and the other end is rotatably connected to the connecting plate 5, one end of the gas pressure rod 8 is hingedly connected to the bottom plate 7, and the piston rod on the gas pressure rod 8 is hingedly connected to the fixing member 4; the bracket 9 is fixed on the bottom plate 7, and the end of the first connecting rod 6 close to the fixing member 4 is rotatably connected to the bracket 9, and one end of the second connecting rod 13 is rotatably connected to the bracket 9, and the other end is rotatably connected to the connecting plate 5. When the user sits on the seat 1, the fixing member 4 is pressed down, so that the fixing member 4 drives the first connecting rod 6 to rotate around the bracket 9, and at the same time, the other end of the first connecting rod 6 rotates around the connecting plate 5, and the first connecting rod 6 pushes the connecting plate 5 to move toward the backrest 2, so that the backrest 2 is close to the user's back, supporting the user's back. Therefore, there is no need to adjust the backrest 2, and the inclination angle of the backrest 2 can be adjusted by adjusting the sitting height of the seat 1. Under the action of the gas pressure rod 8, when the gas pressure rod 8 drives the seat 1 to rise, the fixing member 4 drives the connecting member to rotate around the connecting plate 5, and at the same time, the connecting member drives the connecting plate 5 to move, and the connecting plate 5 drives the backrest 2 away from the user's back.

[0048] The first connecting rod 6 includes a first connecting portion 11 and a second connecting portion 12; one end of the first connecting portion 11 is hingedly connected to the fixing member 4, one end of the second connecting portion 12 is fixedly arranged on the first connecting portion 11, and the other end is rotatably connected to the connecting plate 5, and the end of the second connecting portion 12 close to the first connecting portion 11 is rotatably connected to the bracket 9 through a pin shaft; wherein the length of the second connecting portion 12 is greater than the length of the second connecting rod 13; the second connecting portion 12 and the second connecting rod 13 are arranged in parallel.

[0049] The adjustment assembly 3 further includes a support rod 10 ; one end of the support rod 10 is hingedly connected to the base plate 7 , and the other end of the support rod 10 is hingedly connected to the fixing member 4 .

[0050] The fixing member 4 includes a fixing plate 14 and a fixing block 15; the fixing block 15 is fixed on the fixing plate 14, and one end of the fixing block 15 is fixed to the bottom of the seat 1 by a screw. The fixing plate 14 is provided with a long slot 16, and the support rod 10 and the piston rod of the gas pressure rod 8 are both inserted into the long slot 16 and are rotatably arranged by a pin shaft.

[0051] The piston rod of the gas pressure rod 8 and the support rod 10 are both provided with a first through hole 17 and a second through hole 18 , and the first through hole 17 and the second through hole 18 are coaxially arranged.

[0052] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. An adaptive back-chasing device, comprising: Seats; Backrest; Features: The adaptive chasing also includes: An adjustment component, one end of which is connected to the seat and the other end of which is connected to the backrest, and the backrest is moved toward the back of the user by pressing down the seat so that the backrest is closely attached to the back of the user; The adjustment component comprises: A fixing member, fixedly arranged on the bottom of the seat; A connecting plate, one end of which is fixedly connected to the backrest; Base plate; A gas pressure rod, one end of which is hingedly connected to the bottom plate, and a piston rod on the gas pressure rod is hingedly connected to the fixing member; A bracket, fixed on the bottom plate; A first connecting rod, one end of which is hingedly connected to the fixing member, and the other end of which is rotatably connected to the connecting plate; The second connecting rod has one end rotatably connected to the bracket and the other end rotatably connected to the connecting plate.

2. The adaptive chasing device according to claim 1, characterized in that: The first connecting rod comprises: A first connecting portion, one end of which is hingedly connected to the fixing member; The second connection part has one end fixed on the first connection part and the other end rotatably connected to the connection plate, and one end of the second connection part close to the first connection part is rotatably connected to the bracket through a pin shaft.

3. The adaptive chasing device according to claim 2, characterized in that: The length of the second connecting portion is greater than the length of the second connecting rod.

4. The adaptive chasing device according to claim 2, characterized in that: The second connecting portion and the second connecting rod are arranged in parallel.

5. The adaptive chasing device according to claim 1, characterized in that: The adjustment component also includes: A support rod has one end hingedly connected to the base plate and the other end hingedly connected to the fixing member.

6. The adaptive chasing device according to claim 5, characterized in that: The fixing member comprises: Fixed plate; A fixing block, fixed on the fixing plate, and one end of which is fixed on the bottom of the seat by a screw; The fixing plate is provided with a long slot, and the support rod and the piston rod of the gas pressure rod are both inserted into the long slot and are rotatably arranged by a pin shaft.

7. The adaptive chasing device according to claim 5, characterized in that: The piston rod of the gas pressure rod and the support rod are both provided with a first through hole and a second through hole, and the first through hole and the second through hole are coaxially arranged.

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