Seat backrest adjusting device of ergonomic chair
By introducing structures such as an extension plate and a mounting seat on the backrest of an ergonomic chair, the problem of inconvenient adjustment of the backrest height and lumbar support in existing devices is solved, thereby improving comfort and maintenance convenience.
Patent Information
- Application Number
- CN202423106245.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The existing ergonomic chair seat back device is not convenient for adjusting the backrest top and waist height according to needs, which affects comfort and user experience, and the waist is not convenient for disassembly and maintenance.
An adjustment device including an extension plate, a guide groove, a mounting seat, a positioning block and an elastic member is designed. By adjusting the screw and the connecting block, the backrest height and the lumbar position can be flexibly adjusted, which is convenient for disassembly and assembly.
The backrest height and waist position can be flexibly adjusted, the neck support effect and the adjustability of the device are improved, and the comfort of use and the convenience of maintenance are enhanced.
Smart Images
Figure CN223429341U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ergonomic chair, more specifically, especially relate to a seat backrest adjusting device of ergonomic chair. BACKGROUND
[0002] Ergonomics is a multi-disciplinary applied science; through the study of the interaction between man and machine and the environment, ultimately to make people safe, efficient, comfortable work purpose; with the development of science and technology, people gradually improve the quality of work and life requirements; seat is the tool that people often contact and use in work and life, and the backrest design is good or bad, directly affects the comfort of use, and then affects the work efficiency.
[0003] The seat backrest adjusting device of the similar ergonomic chair in the prior art is inconvenient to adjust the top height of the seat backrest according to the needs, and after a long time of use, especially when the user needs to recline and rest, the seat backrest may not provide better neck support, which easily affects the overall comfort and use experience; and the device is inconvenient to adjust the use height of the waist support according to the needs, and the waist support is inconvenient to disassemble and maintain. UTILITY MODEL CONTENTS
[0004] In order to solve the above technical problems, the utility model provides a seat backrest adjusting device of ergonomic chair, to solve the problem that the similar device in the prior art is inconvenient to adjust the top height of the seat backrest according to the needs, and after a long time of use, especially when the user needs to recline and rest, the seat backrest may not provide better neck support, which easily affects the overall comfort and use experience; and the device is inconvenient to adjust the use height of the waist support according to the needs, and the waist support is inconvenient to disassemble and maintain.
[0005] The seat backrest adjusting device of the ergonomic chair of the utility model is achieved by the following specific technical means:
[0006] A seat backrest adjusting device of ergonomic chair, comprising a seat backrest;
[0007] The top of the seat backrest is threadedly installed with a group of extension plates, a group of waist supports is slidingly installed on the seat backrest, the front and rear ends of the seat backrest are respectively provided with positioning grooves at equal intervals, the outer end of the waist support is connected with a soft rubber pad, a group of mounting seats is fixedly installed at the two ends of the waist support respectively, a group of positioning blocks is slidingly installed on the mounting seat, and the positioning blocks on the mounting seat are respectively inserted and installed on the positioning grooves at the front and rear ends of the seat backrest.
[0008] In at least some embodiments, a group of insertion blocks is fixedly installed at the two ends of the waist support respectively, an insertion slot is formed at the outer end of the mounting seat, and the insertion blocks at the two ends of the waist support are respectively inserted and installed on the insertion slot at the outer end of the mounting seat and are fixedly connected together through bolts.
[0009] In at least some embodiments, two sets of guide grooves are formed in the top inner side of the seat back, and two sets of guide plates are fixedly installed on the bottom of the elongated plate and slidably installed on the guide grooves on the top inner side of the seat back.
[0010] In at least some embodiments, a set of outer connecting plates are fixedly installed on the outer end of the mounting seat, and a set of outer connecting rods are fixedly installed on the outer end of the positioning block and slidably installed on the sliding holes of the outer connecting plates on the outer end of the mounting seat.
[0011] In at least some embodiments, a set of connecting grooves are formed in the two ends of the seat back, and a connecting block is fixedly installed on the inner end of the mounting seat and slidably installed on the connecting grooves on the two ends of the seat back.
[0012] In at least some embodiments, a set of elastic members are sleeved and installed on the outer connecting rods on the outer end of the positioning block, and the outer end of the elastic member is in contact with the inner end surface of the outer connecting plate on the mounting seat.
[0013] In at least some embodiments, a set of adjusting screws are rotatably installed inside the seat back, a set of connecting plates are fixedly installed on the bottom of the elongated plate, and threaded holes are formed in the connecting plates, and the threaded holes on the connecting plates on the bottom of the elongated plate are threadedly installed on the adjusting screws inside the seat back.
[0014] Compared with the prior art, the seat back adjusting device of the ergonomic chair has the following beneficial effects:
[0015] 1. The elongated plate is provided, which is beneficial to threadedly installing the adjusting screws inside the seat back through the threaded holes on the connecting plates on the bottom of the elongated plate, slidably installing the guide plates on the bottom of the elongated plate on the guide grooves on the top inner side of the seat back, rotating the adjusting screws, moving the elongated plate threadedly installed on the adjusting screws upward, adjusting the height of the top of the seat back as needed, and improving the support effect of the device on the neck of the user when leaning back.
[0016] 2. The mounting seat is provided, which is beneficial to slidably installing the connecting block on the inner end of the mounting seat on the connecting grooves on the two ends of the seat back, slidably installing the outer connecting rods on the outer end of the positioning block on the sliding holes of the outer connecting plates on the outer end of the mounting seat, pulling the positioning block outward, moving the height of the user leaning on the waist to the desired position, loosening the positioning block, moving the positioning block inward under the action of the elastic members on the outer connecting rods, and inserting and installing the positioning block on the mounting seat on the positioning grooves on the front and rear ends of the seat back, so that the device is convenient for adjusting the height of the user leaning on the waist as needed, the device has better adjustability, the insertion blocks on the two ends of the waist are respectively inserted and installed on the insertion grooves on the outer end of the mounting seat, and are fixedly connected together through bolts, so that the waist of the device is convenient to disassemble and assemble. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is the front side shaft type schematic diagram of the utility model.
[0018] Figure 2 is the rear side shaft type schematic diagram of the utility model.
[0019] Figure 3 is the dismounting schematic diagram of the extension plate of the utility model.
[0020] Figure 4 is the section view schematic diagram of the extension plate of the utility model.
[0021] Figure 5 is the section view schematic diagram of the mounting seat of the utility model.
[0022] Figure 6 is the outer end mounting schematic diagram of the lumbar support of the utility model.
[0023] In the drawing, the corresponding relationship of component name and drawing number is:
[0024] 1, seat backrest; 101, connecting groove; 102, positioning groove; 103, adjusting screw; 104, guide groove; 2, extension plate; 201, guide plate; 202, connecting plate; 3, lumbar support; 301, mounting seat; 3011, connecting block; 3012, external connecting plate; 3013, insertion slot; 302, positioning block; 3021, external connecting rod; 3022, elastic member; 303, insertion block. DETAILED DESCRIPTION
[0025] The embodiment of the utility model is further described in detail below in combination with the drawings and examples.
[0026] As shown in the accompanying Figure 1 to the accompanying Figure 6 :
[0027] Example one: the utility model provides a kind of seat backrest adjusting device of ergonomic chair, including seat backrest 1;
[0028] A group of extension plates 2 are screw-mounted on the top of seat backrest 1, a group of lumbar supports 3 are slidingly installed on seat backrest 1, positioning groove 102 is equidistantly formed on the front and rear ends of seat backrest 1 respectively, soft rubber pad is connected to the outer end of lumbar support 3, a group of mounting seats 301 are fixedly installed on the two ends of lumbar support 3 respectively, a group of positioning blocks 302 are slidingly installed on mounting seat 301, and positioning block 302 on mounting seat 301 is respectively inserted and installed on the positioning groove 102 of the front and rear ends of seat backrest 1.
[0029] As Figure 3 and Figure 4As shown, a set of adjustment screws 103 are rotatably mounted inside the seat back 1, a set of connecting plates 202 are fixedly mounted at the bottom of the extension plate 2, threaded holes are provided on the connecting plates 202, and the threaded holes on the connecting plates 202 at the bottom of the extension plate 2 are threadedly mounted on the adjustment screws 103 inside the seat back 1, two sets of guide grooves 104 are provided on the inner side of the top of the seat back 1, two sets of guide plates 201 are fixedly mounted at the bottom of the extension plate 2, and the guide plates 201 at the bottom of the extension plate 2 are slidably mounted inside the top of the seat back 1 The specific function is that the threaded hole on the connecting plate 202 at the bottom of the extension plate 2 is threadedly mounted on the adjusting screw 103 inside the seat back 1, and the guide plate 201 at the bottom of the extension plate 2 is slidably mounted on the guide groove 104 on the inner side of the top of the seat back 1. The adjusting screw 103 is rotated to make the extension plate 2 threadedly mounted on the adjusting screw 103 move upward, so that the device can easily adjust the top height of the seat back 1 as needed, so as to improve the supporting effect of the device on the user's neck when leaning back.
[0030] Example 2: Based on Example 1, Figure 5 and Figure 6As shown, a group of connecting grooves 101 are respectively provided at both ends of the seat back 1, a connecting block 3011 is fixedly installed at the inner end of the mounting seat 301, and the connecting block 3011 at the inner end of the mounting seat 301 is slidably installed on the connecting grooves 101 at both ends of the seat back 1, a group of external connecting plates 3012 are fixedly installed at the outer end of the mounting seat 301, and a sliding hole is provided on the external connecting plate 3012, and a group of external connecting rods 3021 are fixedly installed at the outer end of the positioning block 302, and the outer end of the positioning block 302 is fixedly installed. The connecting rod 3021 is slidably mounted on the sliding hole of the external connecting plate 3012 at the outer end of the mounting seat 301. A group of elastic members 3022 are sleeved and mounted on the external connecting rod 3021 at the outer end of the positioning block 302. The outer end of the elastic member 3022 contacts the inner end surface of the external connecting plate 3012 on the mounting seat 301. A group of plug-in blocks 303 are fixedly mounted on both ends of the waist 3. A slot 3013 is opened at the outer end of the mounting seat 301, and the plug-in blocks 303 at both ends of the waist 3 are respectively plugged and mounted on the mounting seat 3 When the lumbar support 3 is lowered to the support post 310, the support post 310 is rotated to rotate with the support post 310 to rotate with the support post 310. When the lumbar support 3 is lowered to the support post 310, the support post 310 is rotated to rotate with the support post 310.
[0031] The specific usage and function of this embodiment are as follows:
[0032] When the present invention is in use, the adjusting screw 103 is rotated to make the extension plate 2 threadedly mounted on the adjusting screw 103 move upward, so that the device can adjust the top height of the seat back 1 as needed, so as to improve the supporting effect of the device on the user's neck when leaning back; after pulling the positioning block 302 outward to move the use height of the lumbar support 3 to the desired position, the positioning block 302 is released, and under the action of the elastic member 3022 on the external rod 3021, the positioning block 302 moves inward, and the positioning blocks 302 on the mounting seat 301 are respectively inserted and installed in the positioning grooves 102 at the front and rear ends of the seat back 1, so that the device can adjust the use height of the lumbar support 3 as needed, so that the device has better adjustability, and the inserting blocks 303 at both ends of the lumbar support 3 are respectively inserted and installed in the slots 3013 at the outer end of the mounting seat 301, and are fixed together by bolts, so that the lumbar support 3 of the device is easy to disassemble and assemble.
[0033] In this article, there are several points to note:
[0034] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.
[0035] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.
[0036] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.
Claims
1. A seat back adjustment device for an ergonomic chair, characterized in that: including a seat back (1); A group of extension plates (2) are threadedly mounted on the top of the seat back (1); a group of waist support (3) is slidably mounted on the seat back (1); positioning grooves (102) are equidistantly provided at the front and rear ends of the seat back (1); a soft rubber pad is connected to the outer end of the waist support (3); a group of mounting seats (301) are fixedly mounted at both ends of the waist support (3); a group of positioning blocks (302) are slidably mounted on the mounting seats (301); and the positioning blocks (302) on the mounting seats (301) are respectively plugged and mounted on the positioning grooves (102) at the front and rear ends of the seat back (1).
2. The seat back adjustment device for an ergonomic chair according to claim 1, characterized in that: A set of adjusting screws (103) are rotatably mounted inside the seat back (1), and a set of connecting plates (202) are fixedly mounted at the bottom of the extension plate (2). Threaded holes are provided on the connecting plates (202), and the threaded holes on the connecting plates (202) at the bottom of the extension plate (2) are threadedly mounted on the adjusting screws (103) inside the seat back (1).
3. The seat back adjustment device for an ergonomic chair according to claim 1, characterized in that: Two groups of guide grooves (104) are provided on the inner side of the top of the seat back (1), two groups of guide plates (201) are fixedly installed on the bottom of the extension plate (2), and the guide plates (201) at the bottom of the extension plate (2) are slidably installed on the guide grooves (104) on the inner side of the top of the seat back (1).
4. The seat back adjustment device for an ergonomic chair according to claim 1, characterized in that: A group of connecting grooves (101) are respectively provided at both ends of the seat back (1); a connecting block (3011) is fixedly mounted on the inner end of the mounting seat (301); and the connecting block (3011) at the inner end of the mounting seat (301) is slidably mounted on the connecting grooves (101) at both ends of the seat back (1).
5. The seat back adjustment device for an ergonomic chair according to claim 1, characterized in that: A group of external connecting plates (3012) are fixedly mounted on the outer end of the mounting seat (301), and sliding holes are provided on the external connecting plates (3012). A group of external connecting rods (3021) are fixedly mounted on the outer end of the positioning block (302), and the external connecting rods (3021) at the outer end of the positioning block (302) are slidably mounted on the sliding holes of the external connecting plates (3012) at the outer end of the mounting seat (301).
6. The seat back adjustment device for an ergonomic chair according to claim 1, characterized in that: A group of elastic members (3022) is sleeved and mounted on the external connecting rod (3021) at the outer end of the positioning block (302), and the outer ends of the elastic members (3022) are in contact with the inner end surfaces of the external connecting plates (3012) on the mounting seat (301).
7. The seat back adjustment device for an ergonomic chair according to claim 1, characterized in that: A group of plug blocks (303) are fixedly mounted on both ends of the waist support (3), a slot (3013) is provided on the outer end of the mounting seat (301), and the plug blocks (303) at both ends of the waist support (3) are respectively plugged and mounted on the slots (3013) on the outer end of the mounting seat (301) and fixed together by bolts.