Office chair headrest with multi-section adjusting device
The office chair headrest with multi-stage adjustment allows for flexible adjustment of headrest height and backrest angle, solving the problems of neck muscle fatigue and insufficient backrest adjustment in existing technologies, and improving user comfort and sense of security.
Patent Information
- Application Number
- CN202520379953.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-03-06
AI Technical Summary
The existing office chair headrests have limited height adjustment functions, which cannot effectively relieve neck muscle fatigue, and the backrest adjustment angle is insufficient, failing to meet the comfort needs of different users.
A multi-stage adjustable headrest for office chairs has been designed, including a multi-angle adjustment mechanism and a seat posture conversion mechanism. Through components such as a sliding adjustment rod, a sliding adjustment crossbar, a rotating plate, and an electric telescopic rod, the headrest height, angle, and backrest angle can be flexibly adjusted to meet the needs of different sitting and reclining postures.
It offers more flexible neck support and backrest adjustment, improving user comfort and sense of security, meeting the personalized needs of different users, and reducing neck and back fatigue.
Smart Images
Figure CN223614442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of office chair technology, and in particular to a multi-stage adjustable headrest for office chairs. Background Technology
[0002] In daily life, with the popularization of modern office methods, people are spending more and more time sitting at their desks. Maintaining a fixed posture for a long time can lead to neck muscle fatigue and soreness, and even cervical spine diseases. According to relevant medical research, poor posture and lack of proper neck support are important factors that cause these problems. As the main seating for people when working, the headrest of the office chair is crucial for relieving neck pressure and providing comfortable support.
[0003] Multi-stage adjustable office chair headrests mainly consist of a headrest body and a height adjustment mechanism. The headrest body is made of comfortable materials, providing support in direct contact with the head and neck. The height adjustment mechanism typically consists of a slide rail, a slider, and a locking device, allowing the headrest height to be adjusted according to the user's height. This type of multi-stage adjustable office chair headrest can meet the needs of different users, providing comfortable neck support for office workers and reducing neck fatigue.
[0004] In existing technologies, only the height of the pillow can be adjusted, which has certain limitations for the needs of many users and cannot provide a more convenient way to relieve neck muscle fatigue. At the same time, traditional chairs can only lean back slightly and cannot achieve any angle of reclining. Therefore, a multi-stage adjustable office chair pillow is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multi-stage adjustable headrest for office chairs, aiming to improve the problems of flexible adjustment of the headrest and backrest in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-segment adjustable office chair headrest, including a backrest, a multi-angle adjustment mechanism fixedly connected to the upper rear side of the backrest, a seat posture conversion mechanism fixedly connected to the bottom of the backrest, a seat cushion fixedly connected to the outer side of the seat posture conversion mechanism, i.e. the side away from the backrest, and a support component provided at the bottom of the seat cushion.
[0007] The multi-angle adjustment mechanism includes a connecting fixing plate, the outer side of which is fixedly connected to the upper rear side of the backrest. An adjusting block is fixedly connected to the top of the connecting fixing plate. A sliding adjusting rod is slidably connected to the inner side of the hole on the inner side of the adjusting block. An adjusting component for horizontal adjustment is slidably connected to the upper hole of the sliding adjusting rod. A fixing ring is fixedly connected to the inner side of the adjusting component. A fixing strip is fixedly connected to the inner side of the fixing ring. An extension component is slidably connected to the outer side of the fixing strip. A cushion is provided on the front side of the fixing ring.
[0008] As a further description of the above technical solution: the adjustment assembly includes a sliding adjustment crossbar, one outer end of the sliding adjustment crossbar, i.e. the end near the adjustment block, is slidably connected to the inner side of the upper hole of the sliding adjustment upright, and a second rotating shaft is fixedly connected to the inner side of one end of the sliding adjustment crossbar, i.e. the end away from the sliding adjustment upright, and a connecting rotating plate is rotatably connected to the middle of the outer side of the second rotating shaft, and a fixing ring is fixedly connected to the front side of the connecting rotating plate;
[0009] As a further description of the above technical solution: the front side of the adjustment block is fixedly connected to the upper rear side of the backrest, the outer side of the connecting rotating plate is slidably connected to one end of the sliding adjustment crossbar, that is, the end away from the sliding adjustment upright, and a rotating shaft is fixedly connected through the side of the fixing ring near the connecting rotating plate.
[0010] As a further description of the above technical solution: the extension component includes two sliding blocks, the two sliding blocks are slidably connected to the outside of the fixing strip through the inner side of the hole, one end of the sliding block, i.e. the end away from the fixing strip, is fixedly connected to a sliding extension pillow, and the opposite sides of the two sliding extension pillows are slidably connected to the two sides of the backrest.
[0011] As a further description of the above technical solution: the seat posture conversion mechanism includes a connecting pipe 1, the top of the connecting pipe 1 is fixedly connected to the bottom of the backrest, a fixing plate 2 is fixedly connected to the inner side of the connecting pipe 1, a rotating shaft 3 is rotatably connected to the inner side of the middle part of the fixing plate 2, and a rotating connecting plate 2 is fixedly connected to the outer side of the fixing plate 2, that is, the side close to the rotating shaft 3.
[0012] As a further description of the above technical solution: one end of the rotating connecting plate two, that is, the end away from the seat posture conversion mechanism, is slidably connected to the connecting pipe two; the inner side of the connecting pipe two is fixedly connected to the fixing plate one; the outer side of the fixing plate one, that is, the side close to the rotating shaft three, is fixedly connected to the rotating connecting plate one; one end of the rotating connecting plate one, that is, the end away from the connecting pipe two, is slidably connected to the groove opened on the inner side of the connecting pipe one.
[0013] As a further description of the above technical solution: the inner side of the middle part of the fixing plate one is slidably connected to the outer side of the middle part of the rotating shaft three, and one side of the connecting pipe two, that is, the side away from the connecting pipe one, is fixedly connected to the outer side of the seat cushion.
[0014] As a further description of the above technical solution: the support assembly includes an electric telescopic rod, the top of which is fixedly connected to the bottom of the seat cushion, and the bottom of which is rotatably connected to a support base.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the horizontal adjustment bar is slidably adjusted in the upper hole of the sliding adjustment rod to allow the user to maintain a suitable distance between the head and the backrest in different sitting postures. The angle of the backrest can be adjusted by rotating the connecting plate around the rotating axis. The user can find the most comfortable support angle according to their preferences and body posture when reading, typing or resting.
[0017] 2. In this utility model, by pushing the backrest backward, the backrest angle can be adjusted through multiple links to meet the different needs of users from slightly reclining to fully lying flat. At the same time, the rotating shaft three becomes the axis under the restriction of the fixing plate one and the inner fixing plate two of the connecting tube one, ensuring that the backrest has firm support at different angles and providing users with a safe and comfortable experience. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the multi-segment adjustable headrest for an office chair proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the sliding adjustment crossbar of the multi-segment adjustment device for the office chair headrest proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of the seat cushion of the multi-segment adjustable office chair headrest proposed in this utility model.
[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0022] Legend:
[0023] 1. Backrest; 2. Multi-angle adjustment mechanism; 201. Connecting fixing plate; 202. Adjusting block; 203. Sliding adjusting upright; 204. Sliding adjusting crossbar; 205. Connecting rotating plate; 206. Fixing strip; 207. Sliding block; 208. Backrest pillow; 209. Fixing ring; 2010. Rotating shaft one; 211. Rotating shaft two; 212. Sliding extension pillow; 3. Seat posture conversion mechanism; 301. Connecting pipe one; 302. Rotating connecting plate one; 303. Rotating shaft three; 304. Rotating connecting plate two; 305. Fixing plate one; 306. Fixing plate two; 307. Connecting pipe two; 4. Seat cushion; 5. Electric telescopic rod; 6. Support base. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figure 1 , Figure 2 This utility model provides an embodiment of a multi-segment adjustable office chair headrest, including a backrest 1. The backrest 1 is used to distribute the weight of the body when the user is seated, reduce the pressure on the spine, and prevent back fatigue and pain caused by sitting for a long time. A multi-angle adjustment mechanism 2 is fixedly connected to the upper rear side of the backrest 1. A seat posture conversion mechanism 3 is fixedly connected to the bottom of the backrest 1. The seat posture conversion mechanism 3 is used to switch between sitting and lying positions. A seat cushion 4 is fixedly connected to the outer side of the seat posture conversion mechanism 3, i.e. the side away from the backrest 1. The seat cushion 4 is made of soft material and can provide a comfortable sitting experience, reducing the pressure on the buttocks and legs during long periods of sitting. A support component is provided at the bottom of the seat cushion 4.
[0026] The multi-angle adjustment mechanism 2 includes a connecting fixing plate 201, which supports the adjustment block 202. The outer side of the connecting fixing plate 201 is fixedly connected to the upper rear side of the backrest 1. The top of the connecting fixing plate 201 is fixedly connected to the adjustment block 202. The adjustment block 202 provides a sliding hole for the sliding adjustment rod 203 so that it can be adjusted up and down. The inner side of the hole on the inner side of the adjustment block 202 is slidably connected to the sliding adjustment rod 203. The sliding adjustment rod 203 is used for up and down adjustment and provides a sliding hole for the sliding adjustment crossbar 204. The hole allows for horizontal adjustment. The upper hole of the sliding adjustment rod 203 is slidably connected to an adjustment component for horizontal adjustment. A fixing ring 209 is fixedly connected to the inner side of the adjustment component. The fixing ring 209 is used to fix the pillow 208 and provide a sliding position for the extension component. A fixing strip 206 is fixedly connected to the inner side of the fixing ring 209. The fixing strip 206 is used to allow the sliding block 207 to slide outside it, thereby extending the sliding extension pillow 212. An extension component is slidably connected to the outer side of the fixing strip 206. The pillow 208 is provided on the front side of the fixing ring 209.
[0027] The adjustment assembly includes a sliding adjustment bar 204, which is used to adjust the headrest 208 horizontally back and forth. One outer end of the sliding adjustment bar 204, which is closer to the adjustment block 202, is slidably connected to the inner side of the upper hole of the sliding adjustment rod 203. A rotating shaft 211 is fixedly connected to the inner side of one end of the sliding adjustment bar 204, which is further away from the sliding adjustment rod 203. The rotating shaft 211 is used to rotate the connecting rotating plate 205. The connecting rotating plate 205 is rotatably connected to the middle of the outer side of the rotating shaft 211. The connecting rotating plate 205 is used to rotate the headrest 208 to adjust its angle. A fixing ring 209 is fixedly connected to the front side of the connecting rotating plate 205. The front side of the adjusting block 202 is fixedly connected to the upper rear side of the backrest 1. The outer side of the connecting rotating plate 205 is slidably connected to one end of the sliding adjusting crossbar 204, i.e., the end away from the sliding adjusting upright 203. The side of the fixing ring 209 near the connecting rotating plate 205 is fixedly connected to a rotating shaft 2010, which is used to fix the rotating plate 205 and the fixing ring 209. The extension assembly includes two sliding blocks 207. The sliding blocks 207 are used to slide on the outside of the fixing bar 206 to extend the sliding extension pillow 212. The inner side of the hole where the two sliding blocks 207 are located is slidably connected to the outside of the fixing bar 206. One end of the sliding block 207, i.e., the end away from the fixing bar 206, is fixedly connected to the sliding extension pillow 212. The sliding extension pillow 212 is used to increase the area of the backrest 208. The opposite sides of the two sliding extension pillows 212 are slidably connected to the two sides of the backrest 208.
[0028] Reference Figure 3 , Figure 4The seat posture conversion mechanism 3 includes a connecting pipe 301, which is used to fix the position of the second plate 306 and allow the rotating connecting plate 302 to slide. The top of the connecting pipe 301 is fixedly connected to the bottom of the backrest 1. The inner side of the connecting pipe 301 is fixedly connected to the second plate 306, which is used to limit the position of the third rotating shaft 303 and fix it as the axis. The middle inner side of the second plate 306 is rotatably connected to the third rotating shaft 303, which is used to allow the first rotating connecting plate 302 and the second rotating connecting plate 304 to rotate on its outer side. The outer side of the second plate 306, i.e. the side close to the third rotating shaft 303, is fixedly connected to the second rotating connecting plate 304, which is used to slide in the groove of the connecting pipe 307 and rotate around the third rotating shaft 303. One end of the rotating connecting plate 304, i.e., the end furthest from the seat posture conversion mechanism 3, is slidably connected to a connecting pipe 307. The connecting pipe 307 connects to the seat cushion 4 and provides a groove for the rotating connecting plate 304. A fixing plate 305 is fixedly connected to the inner side of the connecting pipe 307, which restricts the position of the rotating shaft 303 and fixes it as the axis. A rotating connecting lever 302 is fixedly connected to the outer side of the fixing plate 305, i.e., the side closest to the rotating shaft 303. The rotating connecting lever 302 slides in the groove of the connecting pipe 307 and rotates around the rotating shaft 303. One end of the rotating connecting lever 302, i.e., the end furthest from the connecting pipe 307, is slidably connected to a groove opened on the inner side of the connecting pipe 301. The inner middle part of the fixing plate 305 is slidably connected to the outer middle part of the rotating shaft 303, and one side of the connecting pipe 307, i.e., the side furthest from the connecting pipe 301, is fixedly connected to the outer side of the seat cushion 4. The support assembly includes an electric telescopic rod 5, which is used to adjust the height of the seat cushion 4. The top of the electric telescopic rod 5 is fixedly connected to the bottom of the seat cushion 4, and the bottom of the electric telescopic rod 5 is rotatably connected to a support base 6, which is used to support the upper structure. The bottom is equipped with multiple casters, allowing the office chair to be moved freely.
[0029] Working principle: When the user sits on the seat cushion 4, the headrest 208 is supported by the sliding adjustment rod 203, which slides in the hole of the adjustment block 202 supported by the connecting fixing plate 201 to adjust up and down. At the same time, the sliding adjustment crossbar 204 slides in the hole at the top of the sliding adjustment rod 203 to adjust forward and backward. Simultaneously, the angle of the headrest 208 is adjusted by rotating the connecting rotating plate 205 around the second rotating shaft 211. Then, the fixing strip 206 connected to the inner side of the fixing ring 209 fixed by the first rotating shaft 2010, together with the sliding block 207, slides on its outer side, causing the sliding extension pillow 212 to slide inside the fixing ring 209, thereby extending the pillow surface, increasing the user's head comfort and the user's range of application.
[0030] When the user needs to lie down or lean back to a comfortable angle, pushing the backrest 1 backward causes the rotating connecting plate 302 to slide in the groove inside the connecting pipe 301, allowing the rotating connecting plate 302 to rotate around the rotating shaft 303. The position of the rotating shaft 303 is restricted by the fixing plate 305, making it the axis. At the same time, the rotating connecting plate 304 slides in the groove of the connecting pipe 307 and rotates around the rotating shaft 303. The position of the rotating shaft 303 is restricted by the fixing plate 306 inside the connecting pipe 301, making it the axis. This allows the user to be more comfortable. The up and down adjustment of the electric telescopic rod 5 and the sliding of the universal wheels at the bottom of the support base 6 make it more flexible and convenient to use.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-stage adjustable headrest for an office chair, including a backrest (1), characterized in that: A multi-angle adjustment mechanism (2) is fixedly connected to the upper rear side of the backrest (1), a seat posture conversion mechanism (3) is fixedly connected to the bottom of the backrest (1), a seat cushion (4) is fixedly connected to the outer side of the seat posture conversion mechanism (3), that is, the side away from the backrest (1), and a support component is provided at the bottom of the seat cushion (4). The multi-angle adjustment mechanism (2) includes a connecting fixing plate (201). The outer side of the connecting fixing plate (201) is fixedly connected to the upper rear side of the backrest (1). An adjustment block (202) is fixedly connected to the top of the connecting fixing plate (201). A sliding adjustment rod (203) is slidably connected to the inner side of the hole opened on the inner side of the adjustment block (202). An adjustment component for horizontal adjustment is slidably connected to the upper hole of the sliding adjustment rod (203). A fixing ring (209) is fixedly connected to the inner side of the adjustment component. A fixing strip (206) is fixedly connected to the inner side of the fixing ring (209). An extension component is slidably connected to the outer side of the fixing strip (206). A pillow (208) is provided on the front side of the fixing ring (209).
2. The multi-segment adjustable office chair headrest according to claim 1, characterized in that: The adjustment assembly includes a sliding adjustment crossbar (204). One outer end of the sliding adjustment crossbar (204), which is close to the adjustment block (202), is slidably connected to the inner side of the upper hole of the sliding adjustment rod (203). A rotating shaft (211) is fixedly connected to the inner side of one end of the sliding adjustment crossbar (204), which is away from the sliding adjustment rod (203). A connecting rotating plate (205) is rotatably connected to the middle of the outer side of the rotating shaft (211). A fixing ring (209) is fixedly connected to the front side of the connecting rotating plate (205).
3. The multi-segment adjustable office chair headrest according to claim 2, characterized in that: The front side of the adjusting block (202) is fixedly connected to the upper rear side of the backrest (1). The outer side of the connecting rotating plate (205) is slidably connected to one end of the sliding adjusting crossbar (204), that is, the end away from the sliding adjusting upright (203). The fixing ring (209) is fixedly connected to the rotating shaft (2010) through the side near the connecting rotating plate (205).
4. The multi-stage adjustable office chair headrest according to claim 3, characterized in that: The extension component includes two sliding blocks (207), which are slidably connected to the outside of the fixing strip (206) on the inner side of the hole. One end of the sliding block (207), i.e. the end away from the fixing strip (206), is fixedly connected to a sliding extension pillow (212), and the opposite sides of the two sliding extension pillows (212) are slidably connected to the two sides of the backrest (208).
5. The multi-segment adjustable office chair headrest according to claim 1, characterized in that: The seat posture conversion mechanism (3) includes a connecting pipe (301), the top of which is fixedly connected to the bottom of the backrest (1), a fixing plate (306) is fixedly connected to the inner side of the connecting pipe (301), a rotating shaft (303) is rotatably connected to the inner side of the middle part of the fixing plate (306), and a rotating connecting plate (304) is fixedly connected to the outer side of the fixing plate (306), i.e., the side close to the rotating shaft (303).
6. The multi-stage adjustable office chair headrest according to claim 5, characterized in that: One end of the rotating connecting plate 2 (304), that is, the end away from the seat posture conversion mechanism (3), is slidably connected to the connecting pipe 2 (307). The inner side of the connecting pipe 2 (307) is fixedly connected to the fixing plate 1 (305). The outer side of the fixing plate 1 (305), that is, the side close to the rotating shaft 3 (303), is fixedly connected to the rotating connecting plate 1 (302). One end of the rotating connecting plate 1 (302), that is, the end away from the connecting pipe 2 (307), is slidably connected to the groove opened on the inner side of the connecting pipe 1 (301).
7. The multi-segment adjustable office chair headrest according to claim 6, characterized in that: The inner side of the middle part of the fixing plate (305) is slidably connected to the outer side of the middle part of the rotating shaft (303), and one side of the connecting pipe (307), that is, the side away from the connecting pipe (301), is fixedly connected to the outer side of the seat cushion (4).
8. The multi-stage adjustable office chair headrest according to claim 1, characterized in that: The support assembly includes an electric telescopic rod (5), the top of which is fixedly connected to the bottom of the seat cushion (4), and the bottom of which is rotatably connected to a support base (6).