Adjustable seat

Abstract

The utility model relates to an adjustable chair which comprises a seat assembly and a chair back, an adjusting mechanism used for adjusting the height of the chair back is arranged between the seat assembly and the chair back, and the adjusting mechanism comprises a supporting assembly connected with the seat assembly, a connecting assembly connected with the chair back and a first positioning assembly arranged between the supporting assembly and the connecting assembly. The supporting assembly comprises a supporting frame arranged between the connecting assembly and the chair back, a plurality of first positioning holes are formed in the face, corresponding to the chair back, of the supporting frame from top to bottom, a containing groove matched with the supporting frame is formed in the face, corresponding to the supporting frame, of the chair back, and mounting grooves are formed in the positions, corresponding to the first positioning holes, of the containing groove. And the first positioning assembly is arranged in the mounting groove and is matched with the first positioning hole for positioning. By the adoption of the technical scheme, the height of the chair back can be adjusted according to the height of a user, ergonomics is met, use is convenient for the user, labor is saved when the user uses the waist and the back, operation is easy, use is convenient, and the supporting frame enhances stability and supporting force.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities and office supplies, specifically to an adjustable chair. Background Technology

[0002] An office chair is a chair with a backrest that a person sits on while working at a desk. Existing office chairs generally do not have a fixed shape, cannot be adjusted to fit the user's body shape, lack seat adjustment functions, have limited functionality, and are not widely used. Utility Model Content

[0003] In summary, to overcome the shortcomings of the prior art, this utility model provides an adjustable seat.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an adjustable seat, comprising a seat assembly and a backrest, wherein an adjustment mechanism for adjusting the height of the backrest is provided between the seat assembly and the backrest, the adjustment mechanism comprising a support assembly connected to the seat assembly, a connecting assembly connected to the backrest, and a first positioning assembly disposed between the support assembly and the connecting assembly, the support assembly comprising a support frame disposed between the connecting assembly and the backrest, the support frame having a plurality of first positioning holes from top to bottom on the side corresponding to the backrest, the backrest having a receiving groove adapted to the support frame on the side corresponding to the support frame, the receiving groove having an installation groove at the position corresponding to the first positioning holes, and the first positioning assembly being disposed in the installation groove and positioned in conjunction with the first positioning holes.

[0005] By adopting the above technical solution, the height of the chair back can be adjusted according to the user's height, which is more ergonomic, more convenient for users, and makes the user's back less strained. It is simple to operate and easy to use. The support frame further enhances the stability and support of the chair back.

[0006] The present invention further includes: a lumbar support on the chair back; a sliding adjustment groove on the chair back corresponding to the position of the lumbar support; a sliding part on the side of the lumbar support corresponding to the sliding adjustment groove; the sliding part passing through the sliding adjustment groove and detachably connected to a limiting member; and an installation hole on the sliding part for installing the limiting member.

[0007] By adopting the above technical solution, not only can the height of the chair back be adjusted, but also the height and position of the lumbar support can be adjusted, improving the user experience and making it more widely applicable.

[0008] The present invention further includes: the connecting component includes a back plate for covering the receiving groove, the back plate having a plurality of second positioning holes arranged from top to bottom corresponding to the position of the sliding adjustment groove, and the connecting part having a second positioning component that slides and positions with the second positioning holes.

[0009] By adopting the above technical solution and using sliding positioning, the positional relationship between the lumbar support and the chair back can be adjusted, and there is no need to worry about the lumbar support slipping down easily, further improving the user experience. It is simple to operate, convenient to use, and highly stable.

[0010] The present invention is further configured such that the first positioning component and the second positioning component are ball springs.

[0011] By adopting the above technical solution, using ball springs, adjustment is simple and convenient, positioning is quick, the structure is simple, the cost is low, and the stability is high.

[0012] The present invention further includes: the back panel is provided with a plurality of first connection holes that can be detachably connected to the chair back, and the back panel and the chair back are detachably connected to the first connection holes by fasteners.

[0013] By adopting the above technical solution, the support frame and the first positioning component are limited by fixing the back plate, which further enhances the stability of the connection. At the same time, the back plate is set to cover the receiving groove, making the overall appearance more aesthetically pleasing.

[0014] The present invention further includes: a quick-release hole for disengaging the limiting member on the sliding adjustment groove, wherein the diameter of the quick-release hole is larger than the diameter of the limiting member, and the width of the sliding adjustment groove is smaller than the diameter of the limiting member.

[0015] By adopting the above technical solution, the lumbar support can be quickly replaced without disassembling the back panel, making it more convenient to use.

[0016] The present invention further comprises: a pull-out headrest assembly at the upper end of the chair back, a pull-out tube at the back of the chair back, a sliding channel at the pull-out tube, the headrest assembly including a headrest body and a connecting tube slidably disposed in the sliding channel, the upper end of the connecting tube being detachably connected to the headrest body, the lower end of the connecting tube being provided with a positioning groove, a plurality of third positioning holes being provided in the positioning groove from top to bottom, and a third positioning component being provided in the pull-out tube for sliding positioning cooperation with the third positioning holes.

[0017] By adopting the above technical solution, not only can the height of the chair back and lumbar support be adjusted, but the height and position of the headrest can also be adjusted, further improving the user experience, making it more applicable, and adopting a pull-out design that is simple to operate and convenient to use.

[0018] The present invention further comprises: the third positioning component is a ball spring.

[0019] By adopting the above technical solution, using ball springs, adjustment is simple and convenient, positioning is quick, the structure is simple, the cost is low, and the stability is high.

[0020] The present invention further comprises: a mounting through hole for mounting a headrest assembly on the chair back; the headrest assembly includes a headrest body disposed in front of the chair back and a connector for connecting the headrest body and the chair back; the connector includes a limiting part for limiting the headrest body and a connecting part passing through the mounting through hole for connecting the headrest body; the connecting part is provided with a second connecting hole for mounting fasteners; and the side of the headrest body corresponding to the second connecting hole is provided with a third connecting hole adapted to the second connecting hole.

[0021] By adopting the above technical solution, a headrest with a fixed height is used, and the material of the headrest body can be changed according to the user's needs. It has wide applicability, high stability, and is easy to replace.

[0022] The present invention further comprises: the support frame is H-shaped, and the first positioning holes are arranged in two rows on both sides of the support frame.

[0023] By adopting the above technical solutions, the stability of adjustment and connection can be further improved.

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples. Attached Figure Description

[0025] Figure 1 This is a rear view of Embodiment 1 of the present utility model;

[0026] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0027] Figure 3 Rear view of a partial structure of Embodiment 1 of this utility model Figure 1 ;

[0028] Figure 4 for Figure 3 Enlarged view of part A;

[0029] Figure 5 Rear view of a partial structure of Embodiment 1 of this utility model Figure 2 ;

[0030] Figure 6 for Figure 5 Enlarged view of part B;

[0031] Figure 7 This is a partial front view of the structure of Embodiment 1 of this utility model;

[0032] Figure 8 for Figure 7 Enlarged view of part C;

[0033] Figure 9 This is a rear view of Embodiment 2 of the present invention;

[0034] Figure 10 This is a front view of Embodiment 2 of the present invention;

[0035] Figure 11 This is a partial structural enlarged view of Embodiment 2 of this utility model.

[0036] Reference numerals: 1. Seat assembly, 2. Backrest, 21. Receiving groove, 22. Mounting groove, 23. Sliding adjustment groove, 231. Quick-release hole, 24. Pull-out tube, 25. Mounting through hole, 3. Adjustment mechanism, 31. Support assembly, 311. Support frame, 3111. First positioning hole, 32. Connecting assembly, 321. Back panel, 3211. Second positioning hole, 3212. First connecting hole, 33. First positioning assembly, 4. Lumbar support, 41. Sliding part, 411. Mounting hole, 5. Limiting member, 6. Second positioning assembly, 7. Headrest assembly, 71. Headrest body, 711. Third connecting hole, 72. Connecting tube, 721. Positioning groove, 722. Third positioning hole, 73. Connecting member, 731. Limiting part, 732. Connecting part, 7321. Second connecting hole, 8. Third positioning assembly. Detailed Implementation

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0038] See appendix Figure 1-11 This embodiment discloses an adjustable seat, including a seat assembly 1 and a backrest 2. An adjustment mechanism 3 for adjusting the height of the backrest 2 is provided between the seat assembly 1 and the backrest 2. The adjustment mechanism 3 includes a support assembly 31 connected to the seat assembly 1, a connecting assembly 32 connected to the backrest 2, and a first positioning assembly 33 disposed between the support assembly 31 and the connecting assembly 32. The support assembly 31 includes a support frame 311 disposed between the connecting assembly 32 and the backrest 2. The support frame 311 has a plurality of first positioning holes 3111 from top to bottom on the side of the backrest 2. The side of the backrest 2 corresponding to the support frame 311 has a receiving groove 21 adapted to the support frame 311. The receiving groove 21 has a mounting groove 22 at the position corresponding to the first positioning holes 3111. The first positioning assembly 33 is disposed in the mounting groove 22 and is positioned in conjunction with the first positioning holes 3111.

[0039] This embodiment further includes the following features: a lumbar pillow 4 is provided on the backrest 2; a sliding adjustment groove 23 is provided on the backrest 2 corresponding to the position of the lumbar pillow 4; a sliding part 41 is provided on the side of the lumbar pillow 4 corresponding to the sliding adjustment groove 23; the sliding part 41 passes through the sliding adjustment groove 23 and is detachably connected to the limiting member 5; and the sliding part 41 is provided with an installation hole 411 for installing the limiting member 5.

[0040] In this embodiment, the connecting component 32 includes a back plate 321 for covering the receiving groove 21. The back plate 321 is provided with a plurality of second positioning holes 3211 from top to bottom corresponding to the position of the sliding adjustment groove 23. The connecting part 732 is provided with a second positioning component 6 that slides and positions with the second positioning holes 3211.

[0041] In this embodiment, the first positioning component 33 and the second positioning component 6 are ball springs.

[0042] This embodiment further includes the following configuration: the back panel 321 is provided with a plurality of first connection holes 3212 that are detachably connected to the chair back 2, and the back panel 321 and the chair back 2 are detachably connected to the first connection holes 3212 by fasteners.

[0043] In this embodiment, the sliding adjustment groove 23 is further provided with a quick-release hole 231 for the limiting member 5 to disengage. The diameter of the quick-release hole 231 is larger than the diameter of the limiting member 5, and the width of the sliding adjustment groove 23 is smaller than the diameter of the limiting member 5.

[0044] This embodiment further includes: a pull-out headrest assembly 7 at the upper end of the chair back 2; a pull-out tube 24 at the back of the chair back 2; a sliding channel in the pull-out tube 24; the headrest assembly 7 including a headrest body 71 and a connecting tube 72 slidably disposed in the sliding channel; the upper end of the connecting tube 72 being detachably connected to the headrest body 71; a positioning groove 721 at the lower end of the connecting tube 72; a plurality of third positioning holes 722 arranged from top to bottom in the positioning groove 721; and a third positioning assembly 8 in the pull-out tube 24 that slides and positions with the third positioning holes 722.

[0045] In this embodiment, the third positioning component 8 is a ball spring.

[0046] This embodiment further includes the following: the chair back 2 is provided with a mounting through hole 25 for mounting a headrest assembly 7. The headrest assembly 7 includes a headrest body 71 disposed in front of the chair back 2 and a connector 73 for connecting the headrest body 71 and the chair back 2. The connector 73 includes a limiting part 731 for limiting the headrest body 71 and a connecting part 732 passing through the mounting through hole 25 for connecting the headrest body 71. The connecting part 732 is provided with a second connecting hole 7321 for mounting fasteners. The side of the headrest body 71 corresponding to the second connecting hole 7321 is provided with a third connecting hole 711 adapted to the second connecting hole 7321.

[0047] In this embodiment, the support frame 311 is further configured in an H-shape, and the first positioning holes 3111 are arranged in two rows on both sides of the support frame 311.

[0048] The "between" mentioned above does not only refer to the location or position, but also to the interaction between different parts.

[0049] Although this document frequently uses terms such as seat assembly 1, backrest 2, receiving groove 21, mounting groove 22, sliding adjustment groove 23, quick-release hole 231, pull-out tube 24, mounting through hole 25, adjustment mechanism 3, support assembly 31, support frame 311, first positioning hole 3111, connecting assembly 32, back panel 321, second positioning hole 3211, first connecting hole 3212, first positioning assembly 33, lumbar pillow 4, sliding part 41, mounting hole 411, limiting member 5, second positioning assembly 6, headrest assembly 7, headrest body 71, third connecting hole 711, connecting tube 72, positioning groove 721, third positioning hole 722, connecting member 73, limiting part 731, connecting part 732, second connecting hole 7321, and third positioning assembly 8, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An adjustable seat, characterized in that: The device includes a seat assembly and a backrest. An adjustment mechanism for adjusting the backrest height is provided between the seat assembly and the backrest. The adjustment mechanism includes a support assembly connected to the seat assembly, a connecting assembly connected to the backrest, and a first positioning assembly disposed between the support assembly and the connecting assembly. The support assembly includes a support frame disposed between the connecting assembly and the backrest. The side of the support frame corresponding to the backrest has a plurality of first positioning holes from top to bottom. The side of the backrest corresponding to the support frame has a receiving groove adapted to the support frame. The receiving groove has a mounting groove at the position corresponding to the first positioning holes. The first positioning assembly is disposed in the mounting groove and is positioned in conjunction with the first positioning holes.

2. The adjustable seat according to claim 1, characterized in that: The chair back is provided with a lumbar support, and the chair back is provided with a sliding adjustment groove corresponding to the position of the lumbar support. The side of the lumbar support corresponding to the sliding adjustment groove is provided with a sliding part. The sliding part passes through the sliding adjustment groove and is detachably connected to a limiting member. The sliding part is provided with a mounting hole for installing the limiting member.

3. An adjustable seat according to claim 2, characterized in that: The connecting assembly includes a back plate for covering the receiving groove. The back plate is provided with a plurality of second positioning holes from top to bottom corresponding to the position of the sliding adjustment groove. The connecting assembly is provided with a second positioning component that slides and engages with the second positioning holes.

4. An adjustable seat according to claim 3, characterized in that: The first positioning component and the second positioning component are ball springs.

5. An adjustable seat according to claim 3, characterized in that: The back panel is provided with a plurality of first connection holes that can be detachably connected to the chair back. The back panel and the chair back are detachably connected to the first connection holes by fasteners.

6. An adjustable seat according to claim 2, characterized in that: The sliding adjustment groove is provided with a quick-release hole for the limiting member to disengage. The diameter of the quick-release hole is larger than the diameter of the limiting member, and the width of the sliding adjustment groove is smaller than the diameter of the limiting member.

7. An adjustable seat according to claim 1, characterized in that: The upper end of the chair back is provided with a pull-out headrest assembly, the back of the chair back is provided with a pull-out tube, the pull-out tube is provided with a sliding channel, the headrest assembly includes a headrest body and a connecting tube slidably disposed in the sliding channel, the upper end of the connecting tube is detachably connected to the headrest body, the lower end of the connecting tube is provided with a positioning groove, the positioning groove is provided with a plurality of third positioning holes from top to bottom, and the pull-out tube is provided with a third positioning component that slides and positions with the third positioning holes.

8. An adjustable seat according to claim 7, characterized in that: The third positioning component is a ball spring.

9. An adjustable seat according to claim 1, characterized in that: The chair back is provided with a mounting through hole for installing a headrest assembly. The headrest assembly includes a headrest body located at the front of the chair back and a connector for connecting the headrest body to the chair back. The connector includes a limiting part for limiting the headrest body and a connecting part that passes through the mounting through hole for connecting the headrest body. The connecting part is provided with a second connecting hole for installing fasteners. The side of the headrest body corresponding to the second connecting hole is provided with a third connecting hole that is adapted to the second connecting hole.

10. An adjustable seat according to claim 1, characterized in that: The support frame is H-shaped, and the first positioning holes are arranged in two rows on both sides of the support frame.

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