Linkage type adjusting seat

Abstract

The utility model discloses a linkage type adjusting seat, and belongs to the field of furniture. Comprising a seat; a chair back; a table-chair support; the adjusting assembly is arranged on the table and chair support, one end of the adjusting assembly is connected to the chair, the other end of the adjusting assembly is connected to the chair back, and the chair back moves towards the back of the user by pressing down the chair, so that the chair back is tightly attached to the back of the user; the adjusting assembly comprises a supporting plate; the fixed plate is fixedly arranged at the bottom of the seat; one end of the connecting plate is hinged to the supporting plate, and the other end of the connecting plate is hinged to the fixing plate; one end of the connecting piece is rotationally arranged on the table and chair bracket, and the other end is rotationally connected to the chair back; one end of the connecting rod is hinged to the fixing plate, and the other end is hinged to the connecting piece; one end of the air pressure rod is hinged to the supporting plate, and a piston rod at the other end is hinged to the fixing plate. The linkage type adjusting seat has the beneficial effect that the seat and the seat back can be conveniently adjusted at the same time.

Description

Technical Field

[0001] The present application relates to the field of furniture, and in particular, to a linkage-type adjustable chair. 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 a linkage-type adjustable seat, including:

[0007] Seats;

[0008] Chair back;

[0009] Table and chair brackets;

[0010] The adjustment component is arranged on the table and chair support, and one end is connected to the seat, and the other end is connected to the chair back, and the chair back is moved toward the back of the user by pressing down the seat, so that the chair back is closely attached to the back of the user;

[0011] The adjustment components include:

[0012] Support plate;

[0013] A fixing plate, fixed to the bottom of the seat;

[0014] A connecting plate, one end of which is hingedly connected to the supporting plate, and the other end of which is hingedly connected to the fixing plate;

[0015] A connecting piece, one end of which is rotatably mounted on the table and chair bracket, and the other end of which is rotatably connected to the chair back;

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

[0017] The gas pressure rod has one end hingedly connected to the support plate, and the piston rod at the other end is hingedly connected to the fixed plate.

[0018] When the user sits on the seat, pressure is generated on the seat, causing the fixed plate to move downward. The fixed plate drives the connecting plate to move, while pulling the connecting rod to move, causing the connecting piece to rotate, and the connecting piece pushes the chair back toward the user's back, thereby fitting the user's back to provide support. Therefore, there is no need to adjust the chair back, and the inclination angle of the chair back can be adjusted by adjusting the seat height while adjusting the seat.

[0019] Furthermore, both ends of the connecting member are rotatably connected to the table and chair bracket and the chair back through a first pin shaft.

[0020] Furthermore, the connecting member is composed of a first connecting portion and a second connecting portion of two identical lengths, and one end of the connecting rod is connected to the second connecting portion.

[0021] Furthermore, the first connecting portion and the second connecting portion are arranged in parallel.

[0022] Furthermore, the adjustment component also includes:

[0023] A sliding member, slidably arranged on the table and chair bracket;

[0024] One end of the supporting plate is arranged on the sliding member.

[0025] Further, the sliding member comprises:

[0026] Shell;

[0027] The sleeve ring part is sleeved on the table and chair bracket, and the sleeve ring part is composed of two semicircular arc pieces, and an opening is provided between the two semicircular arc pieces;

[0028] A connecting piece is provided on one of the semicircular arc pieces, and two ends of the connecting piece pass through the other semicircular arc piece;

[0029] A second pin is disposed between two ends of the connecting piece;

[0030] A clamping piece, rotatably mounted on the second pin shaft;

[0031] The support plate is installed between the two semicircular arc pieces.

[0032] Furthermore, the adjustment component also includes:

[0033] The locking member is arranged on the sliding member and is used for locking the sliding member.

[0034] Furthermore, the locking member comprises:

[0035] A fixed block is fixed on the sliding member, and a first protrusion is provided on the fixed block, and an inclined surface is provided on the first protrusion;

[0036] A button is rotatably arranged on the fixed block and has a gap between the button and the fixed block, and a second convex block is arranged on the button to rotate relative to the first convex block;

[0037] A locking rod is fixedly mounted on the button, and one end of the locking rod passes through the first protrusion and extends to the sliding member, thereby abutting against the sliding member;

[0038] The return spring is arranged between the locking rod and the first protrusion.

[0039] Furthermore, the sliding member is provided with a plurality of slots for the locking rods to be inserted into.

[0040] The beneficial effect of the present application is that it provides a linkage-type adjustable seat that is convenient for adjusting the seat and the backrest at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 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.

[0042] 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.

[0043] In the attached picture:

[0044] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0045] Figure 2 is an overall schematic diagram according to an embodiment of the present application;

[0046] Figure 3 yes Figure 2 A magnified view of part A;

[0047] Figure 4 yes Figure 2 A magnified view of part B;

[0048] Figure 5 is a cross-sectional view of an embodiment;

[0049] Figure 6 yes Figure 5 Enlarged view of part C;

[0050] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the locking member.

[0051] Reference numerals:

[0052] 1. Chair back; 2. Adjustment assembly; 3. Support rod; 4. Base; 5. Support plate; 6. Fixed plate; 7. Connecting plate; 8. Connecting piece; 9. Connecting rod; 10. Gas pressure rod; 11. First pin; 12. First connecting part; 13. Second connecting part; 14. Sliding part; 15. Locking part; 16. Shell; 17. Ring part; 18. Connecting piece; 19. Second pin; 20. Clamping piece; 21. Opening; 22. Fixed block; 23. Button; 24. Locking rod; 25. Return spring; 26. First protrusion; 27. Second protrusion; 28. Inclined surface; 29. ​​Slot. DETAILED DESCRIPTION

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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".

[0057] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0058] Reference Figure 1-7The linkage type adjustable chair comprises a seat (not shown in the drawings), a chair back 1, a table and chair bracket, and an adjustment component 2; the table and chair bracket is composed of a support rod 3 and a base 4. The adjustment component 2 is arranged on the support rod 3, and one end of the adjustment component 2 is connected to the seat, and the other end is connected to the chair back 1. By pressing down the seat to move the chair back 1 toward the back of the user, the chair back 1 is closely attached to the back of the user.

[0059] The adjustment assembly 2 includes a support plate 5, a fixed plate 6, a connecting plate 7, a connecting piece 8, a connecting rod 9, and a gas pressure rod 10; the support plate 5 is arranged on the support rod 3, the fixed plate 6 is fixedly arranged at the bottom of the seat, one end of the connecting plate 7 is hingedly connected to the support plate 5, and the other end is hingedly connected to the fixed plate 6; one end of the connecting piece 8 is rotatably arranged on the support rod 3, and the other end is rotatably connected to the chair back 1; one end of the connecting rod 9 is hingedly connected to the fixed plate 6, and the other end is hingedly connected to the connecting piece 8; one end of the gas pressure rod 10 is hingedly connected to the support plate 5, and the piston rod at the other end is hingedly connected to the fixed plate 6. When the user sits on the seat, pressure is generated on the seat, so that the fixed plate 6 moves downward, and the fixed plate 6 drives the connecting plate 7 to move, while pulling the connecting rod 9 to move, so that the connecting piece 8 rotates, and the connecting piece 8 pushes the chair back 1 to approach the user's back, so as to fit the user's back and play a supporting role. Therefore, there is no need to adjust the chair back 1, and the inclination angle of the chair back 1 can be adjusted by adjusting the sitting height of the seat. Under the action of the gas pressure rod 10, when the gas pressure rod 10 drives the seat to rise, the fixed plate 6 drives the connecting plate 7 to move in the opposite direction, and the fixed plate 6 pushes the connecting rod 9 to move, the connecting rod 9 pushes the connecting member 8 to rotate in the opposite direction, and the connecting member 8 pulls the chair back 1 away from the user's back.

[0060] Both ends of the connecting member 8 are rotatably connected to the table and chair bracket and the chair back 1 through a first pin shaft 11.

[0061] The connecting member 8 is composed of a first connecting portion 12 and a second connecting portion 13 of the same length and parallel to each other, and one end of the connecting rod 9 is connected to the second connecting portion 13 .

[0062] The adjustment assembly 2 also includes a sliding member 14 and a locking member 15; the sliding member 14 is slidably arranged on the support rod 3, and one end of the support plate 5 is fixedly arranged on the sliding member 14; the locking member 15 is arranged on the sliding member 14, and is used to lock the sliding member 14. Among them, the sliding member 14 includes a sleeve 16, a collar portion 17, a connecting piece 18, a second pin shaft 19, and a clamping piece 20; the collar portion 17 is sleeved on the support rod 3, and the collar portion 17 is composed of two semicircular arc pieces, and an opening 21 is provided between the two semicircular arc pieces; the connecting piece 18 is arranged on one of the semicircular arc pieces, and the two ends of the connecting piece 18 pass through the other semicircular arc piece; the second pin shaft 19 is rotatably arranged between the two ends of the connecting piece 18; the clamping piece 20 is fixedly arranged on the second pin shaft 19, and the support plate 5 is installed between the two semicircular arc pieces. When the support plate 5 is inserted between the two semicircular arc pieces and the two semicircular arc pieces are simultaneously sleeved on the support rod 3, the clamping piece 20 is bent to rotate around the second pin shaft 19, so that one end of the clamping piece 20 abuts against one of the semicircular arc pieces, and pressure is applied to one of the semicircular arc pieces to make the two semicircular arc pieces approach each other, so that the opening 21 becomes smaller, and the support plate 5 is fixed between the two semicircular arc pieces; then the sleeve shell 16, the collar portion 17, and the support plate 5 are fixed together by screws.

[0063] The locking member 15 includes a fixed block 22, a button 23, a locking rod 24, and a reset spring 25; the fixed block 22 is fixedly arranged on the sliding member 14, and a first protrusion 26 is arranged on the fixed block 22; the button 23 is rotatably arranged on the fixed block 22, and there is a gap between the button 23 and the fixed block 22; the button 23 is provided with a second protrusion 27 that rotates relative to the first protrusion 26; the locking rod 24 is fixedly arranged on the button 23, and one end thereof passes through the first protrusion 26 and extends to the sliding member 14, and abuts against the sliding member 14; the reset spring 25 is arranged between the locking rod 24 and the first protrusion 26. Among them, the first protrusion 26 has an inclined surface 28, and the sliding member 14 has a plurality of slots 29 for the locking rod 24 to be inserted. The operating principle of the locking member 15 is consistent with the principle of retracting the refill on a ballpoint pen in the prior art. Specifically, after the slide 14 is moved to a specified height, the button 23 is pressed, and the gap between the button 23 and the fixing block 22 is reduced, so that the second protrusion 27 rotates relative to the first protrusion 26 under the action of the inclined surface 28, so that one end of the lock rod 24 is inserted into the slot 29 to fix the slide 14. The button 23 is pressed again, and the second protrusion 27, under the action of the inclined surface 28, causes the lock rod 24 to disengage from the slot 29, thereby unlocking the slide 14.

[0064] 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. A linkage adjustable seat, comprising: Seats; Chair back; Table and chair brackets; Features: An adjustment component is arranged on the table and chair bracket, and one end of the adjustment component is connected to the seat, and the other end of the adjustment component is connected to the chair back, and the chair back is moved toward the back of the user by pressing down the seat, so that the chair back is closely attached to the back of the user; The adjustment component comprises: Support plate; A fixing plate, fixedly arranged on the bottom of the seat; A connecting plate, one end of which is hingedly connected to the supporting plate, and the other end of which is hingedly connected to the fixing plate; A connecting piece, one end of which is rotatably mounted on the table and chair bracket, and the other end of which is rotatably connected to the chair back; A connecting rod, one end of which is hingedly connected to the fixing plate, and the other end of which is hingedly connected to the connecting member; The pneumatic rod has one end hingedly connected to the support plate, and the piston rod at the other end is hingedly connected to the fixed plate.

2. The linkage adjustable seat according to claim 1, characterized in that: Both ends of the connecting member are rotatably connected to the table and chair bracket and the chair back through a first pin shaft.

3. The linkage adjustable seat according to claim 1, characterized in that: The connecting member is composed of a first connecting portion and a second connecting portion with the same length, and one end of the connecting rod is connected to the second connecting portion.

4. The linkage adjustable seat according to claim 3, characterized in that: The first connecting portion and the second connecting portion are arranged in parallel.

5. The linkage adjustable seat according to claim 1, characterized in that: The adjustment component also includes: A sliding member, slidably disposed on the table and chair bracket; One end of the support plate is arranged on the sliding member.

6. The linkage adjustable seat according to claim 5, characterized in that: The sliding member comprises: Shell; A sleeve portion is sleeved on the table and chair bracket, and the sleeve portion is composed of two semicircular arc pieces, and an opening is provided between the two semicircular arc pieces; A connecting piece is provided on one of the semicircular arc pieces, and two ends of the connecting piece pass through the other semicircular arc piece; A second pin is disposed between two ends of the connecting piece; A clamping piece, rotatably disposed on the second pin shaft; The support plate is installed between the two semicircular arc pieces.

7. The linkage adjustable seat according to claim 5, characterized in that: The adjustment component also includes: A locking member is provided on the sliding member and is used to lock the sliding member.

8. The linkage adjustable seat according to claim 7, characterized in that: The locking member comprises: A fixed block, fixedly mounted on the sliding member, and provided with a first protrusion, wherein the first protrusion has an inclined surface; A button is rotatably disposed on the fixed block and has a gap with the fixed block, and a second convex block is disposed on the button and rotates relative to the first convex block; A locking rod, fixedly mounted on the button, with one end penetrating through the first protrusion and extending to the sliding member to abut against the sliding member; A return spring is arranged between the locking rod and the first protrusion.

9. The linkage adjustable seat according to claim 8, characterized in that: The sliding member is provided with a plurality of slots for the locking rods to be inserted into.

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