An ergonomic chair back
By designing an ergonomic chair backrest and employing various adjustment mechanisms and components, the problem of existing chair backrests being unable to adapt to patients with scoliosis has been solved, achieving adaptive adjustment and improved comfort for patients with different types of scoliosis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANTOU UNIV
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-26
AI Technical Summary
Existing chair backrests cannot accommodate the spinal deviation of scoliosis patients, resulting in inconvenience. Furthermore, they cannot adjust to the patient's spine when it is straightened under the correction of the orthosis, indicating poor adaptability.
An ergonomically designed seat backrest is employed, featuring an adjustment mechanism comprising components such as a first fixing bolt, left and right guide rails, a first slider, a connecting seat, a second fixing bolt, a second slider, a first bolt, a first threaded rod, a second threaded rod, and upper and lower guide rails. These components work together to achieve left-right and up-down position adjustment. Combined with Velcro, seat cushion, backrest, vertical slide rails, and horizontal slide rails, the design enhances adaptability and comfort.
It achieves adaptive adjustment for different scoliosis patients, improves the adaptability and comfort of the device, is easy to clean, and can be used as a regular seat cushion after the patient recovers.
Smart Images
Figure CN224269619U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nursing equipment technology, specifically to an ergonomic chair backrest. Background Technology
[0002] Scoliosis is a common spinal deformity, also known as scoliosis. It is mainly characterized by a lateral curvature of the spine to one side, giving the back a C-shaped or S-shaped curve. A lateral curvature of more than 10° on a spinal X-ray is sufficient for diagnosis. This disease commonly occurs during adolescence, and symptoms gradually worsen with age. In severe cases, it can affect breathing and cardiac function, and even lead to spinal cord compression and paralysis. The causes of scoliosis are complex, and the etiologies vary depending on the type of scoliosis.
[0003] However, when using existing chair backs, users of orthotics often find that the existing chair backs cannot be adapted to the spinal deviation from the midline, resulting in inconvenience. Furthermore, under the correction of the orthotics, the patient's spine will gradually return to the correct position, but the chair back cannot adjust to the spine at this time, resulting in poor adaptability. Utility Model Content
[0004] The purpose of this invention is to provide an ergonomic chair back to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] An ergonomic chair back includes a seat assembly, the surface of which is provided with an adjustment mechanism, and the surface of which is provided with a lumbar support assembly.
[0007] The adjustment mechanism includes a first fixing bolt, which is fixedly installed on the surface of the seat plate assembly. Left and right guide rails are movably installed on the surface of the first fixing bolt. Two sets of left and right guide rails are provided, which are symmetrically distributed on the surface of the seat plate assembly. A connecting groove is provided on the surface of the left and right guide rails. A first slider is movably installed on the surface of the left and right guide rails. A first bolt is fixedly installed on the surface of the first slider. The first bolt is movably installed inside the connecting groove of the first slider and extends to one side of the seat plate assembly. A first threaded rod is threadedly connected to the surface of the first bolt.
[0008] A further improvement of this utility model is that: a connecting seat is fixedly installed on the surface of the first slider, a second fixing bolt is fixedly connected to the surface of the connecting seat, upper and lower guide rails are fixedly connected to the surface of the second fixing bolt, and a communicating hole is provided on the surface of the upper and lower guide rails.
[0009] A further improvement of this utility model is that: a second slider is movably mounted on the surface of the upper and lower guide rails, a second threaded rod is fixedly mounted on the surface of the second slider, the second threaded rod is movably mounted inside the connecting groove of the upper and lower guide rails and extends to one side of the seat plate assembly, and a second bolt is threadedly connected to the surface of the second threaded rod.
[0010] A further improvement of the present invention is that the seat plate assembly includes a backing plate, the backing plate is fixedly installed on the surface of the first fixing bolt, the surface of the backing plate is provided with a transverse sliding groove, there are two sets of transverse sliding grooves, the transverse sliding grooves are symmetrically distributed on the surface of the backing plate, and the transverse sliding grooves are adapted to the connecting groove of the first slider.
[0011] A further improvement of this utility model is that: the surface of the backrest is provided with a vertical groove, the vertical groove is adapted to the connecting groove of the upper and lower guide rails, a base is fixedly installed at the bottom of the backrest, and a cushion is connected to the surface of the base.
[0012] A further improvement of the present invention is that the lumbar support assembly includes a connector, the connector is fixedly installed on the surface of the second slider, a threaded sleeve is fixedly installed on the surface of the connector, two sets of threaded sleeves are provided, the threaded sleeves are symmetrically distributed on the surface of the connector, and the surface of the threaded sleeve is threadedly connected with a threaded post.
[0013] A further improvement of this utility model is that: a back plate is movably connected to the surface of the threaded column, the surface of the back plate is evenly distributed with guide holes, and a waist pad is connected to the surface of the back plate.
[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0015] 1. This utility model provides an ergonomic chair backrest, employing a combination of a first fixing bolt, left and right guide rails, a first slider, a connecting seat, a second fixing bolt, a second slider, a first bolt, a first threaded rod, a second threaded rod, a second bolt, and upper and lower guide rails. The left and right position is adjusted by the first slider sliding on the left and right guide rails on the surface of the first fixing bolt. The first bolt slides within the connecting grooves on the surfaces of the left and right guide rails. When the two sets of first threaded rods are turned, the first threaded rods cooperate with the second sliders to clamp the seat assembly, thus fixing the left and right position. Simultaneously, the upper and lower sets of first sliders are connected to the second fixing bolts via the connecting seat. When the second slider slides on the surfaces of the upper and lower guide rails, the vertical height can be adjusted. The second threaded rod slides within the connecting holes of the upper and lower guide rails. When the second bolt is turned, the second bolt cooperates with the upper and lower guide rails to clamp the seat assembly, thus fixing the vertical position. Through vertical and horizontal position adjustment, it can accommodate patients with different types of scoliosis and can be adjusted according to the patient's correction status, improving the adaptability of the device.
[0016] 2. This utility model provides an ergonomic chair backrest, which adopts the cooperation of a backrest board, a base, a seat cushion, a vertical slide groove, and a horizontal slide groove. By using Velcro to attach a seat cushion with a height of not less than two centimeters to the surface of the base, the patient's comfort is improved and the seat cushion is easy to disassemble and clean. The backrest board provides support and has vertical and horizontal slide grooves on its surface, which can be fixed in conjunction with the adjustment mechanism, thus improving the adaptability of the device.
[0017] 3. This utility model provides an ergonomic chair backrest, which uses a connector, threaded sleeve, threaded post, back panel, air duct, and lumbar support. It is connected to the adjustment mechanism through the connector, and two sets of threaded sleeves are set on the surface of the connector. The threaded post is aligned with the threaded sleeve and inserted. The threaded post is rotated to connect with the threaded sleeve, thereby completing the connection between the back panel and the connector. The lumbar support is attached to the back panel with Velcro, which not only fixes it but also makes it easy to disassemble and clean. The back panel is made of ABS material, so that it can cushion the back when the patient leans against it through slight deformation. The surface of the lumbar support is provided with ventilation holes, so that when the patient leans against the lumbar support, air can enter the lumbar support through the air duct to ventilate and dissipate heat from the patient's back. Moreover, the device can still be used as a seat cushion after the patient recovers, which improves the adaptability of the device. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the structure of the seat plate assembly of this utility model;
[0020] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the first bolt of this utility model;
[0022] Figure 5 This is a schematic diagram of the lumbar support component of this utility model.
[0023] In the diagram: 1. Seat plate assembly; 11. Backrest plate; 12. Base; 13. Seat cushion; 14. Vertical slide rail; 15. Horizontal slide rail; 2. Adjustment mechanism; 201. First fixing bolt; 202. Left and right guide rails; 203. First slider; 204. Connecting seat; 205. Second fixing bolt; 206. Second slider; 207. First bolt; 208. First threaded rod; 209. Second threaded rod; 210. Second bolt; 211. Upper and lower guide rails; 3. Lumbar support assembly; 301. Connector; 302. Threaded sleeve; 303. Threaded column; 304. Back plate; 305. Guide hole; 306. Lumbar cushion. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to embodiments:
[0025] Example 1
[0026] like Figure 1-5 As shown, this utility model provides an ergonomic chair backrest, including a seat plate assembly 1. An adjustment mechanism 2 is provided on the surface of the seat plate assembly 1, and a lumbar support assembly 3 is provided on the surface of the adjustment mechanism 2. The adjustment mechanism 2 includes a first fixing bolt 201, which is fixedly installed on the surface of the seat plate assembly 1. Left and right guide rails 202 are movably installed on the surface of the first fixing bolt 201. Two sets of left and right guide rails 202 are provided, symmetrically distributed on the surface of the seat plate assembly 1. A connecting groove is provided on the surface of the left and right guide rails 202. A first slider 203 is movably installed on the surface of the left and right guide rails 202. A first bolt 207 is fixedly installed on the surface of the first slider 203, and the first bolt 207 is movably installed on the first slider. The first bolt 207 is threadedly connected to the surface of the first slider 203, and a connecting seat 204 is fixedly installed on the surface of the first slider 203. A second fixing bolt 205 is fixedly connected to the surface of the connecting seat 204. An upper and lower guide rail 211 is fixedly connected to the surface of the second fixing bolt 205. A connecting hole is provided on the surface of the upper and lower guide rail 211. A second slider 206 is movably installed on the surface of the upper and lower guide rail 211. A second threaded rod 209 is fixedly installed on the surface of the second slider 206. The second threaded rod 209 is movably installed inside the connecting groove of the upper and lower guide rail 211 and extends to one side of the seat assembly 1. A second bolt 210 is threadedly connected to the surface of the second threaded rod 209.
[0027] In this embodiment, the left and right positions are adjusted by sliding the first slider 203 on the left and right guide rails 202 on the surface of the first fixing bolt 201. The first bolt 207 slides in the connecting groove on the surface of the left and right guide rails 202. When the two sets of first threaded rods 208 are turned, the first threaded rods 208 cooperate with the second slider 206 to clamp the seat plate assembly 1, thus fixing the left and right positions. At the same time, the upper and lower sets of first sliders 203 are connected to the second fixing bolt 205 through the connecting seat 204. When the second slider 206 slides on the surface of the upper and lower guide rails 211, the upper and lower height can be adjusted. The second threaded rod 209 slides in the connecting hole of the upper and lower guide rails 211. When the second bolt 210 is turned, the second bolt 210 cooperates with the upper and lower guide rails 211 to clamp the seat plate assembly 1, thus fixing the upper and lower positions. By adjusting the left and right positions, the device can adapt to patients with different types of scoliosis and can be adjusted according to the patient's correction status, thus improving the adaptability of the device.
[0028] Example 2
[0029] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the seat assembly 1 includes a backrest 11, which is fixedly installed on the surface of the first fixing bolt 201. The surface of the backrest 11 is provided with a transverse sliding groove 15, and there are two sets of transverse sliding grooves 15. The transverse sliding grooves 15 are symmetrically distributed on the surface of the backrest 11. The transverse sliding grooves 15 are adapted to the communicating groove of the first slider 203. The surface of the backrest 11 is provided with a vertical sliding groove 14, which is adapted to the communicating groove of the upper and lower guide rails 211. A base 12 is fixedly installed at the bottom end of the backrest 11, and a cushion 13 is connected to the surface of the base 12.
[0030] In this embodiment, by using Velcro to attach a seat cushion 13 with a height of not less than two centimeters to the surface of the base 12, the patient's comfort is improved and the seat cushion 13 is easy to disassemble and clean. The backrest 11 provides support while having vertical grooves 14 and horizontal grooves 15 on its surface, which can be fixed in conjunction with the adjustment mechanism 2, thus improving the adaptability of the device.
[0031] Example 3
[0032] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the lumbar support component 3 includes a connector 301, which is fixedly installed on the surface of the second slider 206. A threaded sleeve 302 is fixedly installed on the surface of the connector 301. Two sets of threaded sleeves 302 are provided and are symmetrically distributed on the surface of the connector 301. A threaded post 303 is threadedly connected to the surface of the threaded sleeve 302. A back plate 304 is movably connected to the surface of the threaded post 303. Guide holes 305 are evenly distributed on the surface of the back plate 304. A lumbar pad 306 is connected to the surface of the back plate 304.
[0033] In this embodiment, the device is connected to the adjustment mechanism 2 via the connector 301, and two sets of threaded sleeves 302 are provided on the surface of the connector 301. The threaded post 303 is aligned with the threaded sleeve 302 and inserted. The threaded post 303 is rotated to make it connect with the internal thread of the threaded sleeve 302, thereby completing the connection between the back plate 304 and the connector 301. The lumbar pad 306 is attached to the back plate 304 via Velcro, which makes it easy to disassemble and clean while fixing it. The back plate 304 is made of ABS material, so that it can cushion the patient's back with slight deformation when the patient leans against it. The surface of the lumbar pad 306 is provided with ventilation holes, so that when the patient leans against the lumbar pad 306, air can enter the lumbar pad 306 through the guide hole 305 to ventilate and dissipate heat from the patient's back. Moreover, the device can still be used as a seat cushion after the patient recovers, which improves the adaptability of the device.
[0034] Let me explain in detail the working principle of this ergonomic chair back.
[0035] like Figure 1-5As shown, by using Velcro to attach a seat cushion 13 with a height of not less than two centimeters to the surface of the base 12, patient comfort is improved, and the seat cushion 13 is easy to disassemble and clean. The backrest 11 provides support while having vertical and horizontal sliding grooves 14 and 15 on its surface, allowing it to be fixed in conjunction with the adjustment mechanism 2. The first slider 203 slides on the left and right guide rails 202 on the surface of the first fixing bolt 201 to complete the left and right position adjustment. The first bolt 207 slides in the connecting groove on the surface of the left and right guide rails 202. When the two sets of first threaded rods 208 are turned, the first threaded rods 208 cooperate with the second sliders 206 to clamp the seat plate assembly 1, thus fixing the left and right positions. At the same time, the upper and lower sets of first sliders 203 are connected to the second fixing bolts 205 through the connecting seats 204. When the second sliders 206 slide on the surface of the upper and lower guide rails 211, the vertical height can be adjusted. The second threaded rod 209 slides in the connecting hole of the upper and lower guide rails 211. When the second bolt 210 is turned, the second bolt 210 and the upper and lower guide rails 211 are engaged. The seat plate assembly 1 is clamped together to fix its vertical position. Adjustment of its vertical and horizontal position allows it to accommodate patients with different types of scoliosis and can be adjusted according to the patient's correction progress. Connector 301 connects to adjustment mechanism 2, and two sets of threaded sleeves 302 are provided on the surface of connector 301. Threaded post 303 is aligned with threaded sleeve 302 and inserted. Rotating threaded post 303 connects it to the internal thread of threaded sleeve 302, thus completing the connection between backplate 304 and connector 301. Lumbar cushion 306 is attached to backplate 304 via Velcro, providing both fixation and easy disassembly for cleaning. Backplate 304 is made of ABS material, allowing for slight deformation and cushioning when the patient leans against it. Ventilation holes are provided on the surface of lumbar cushion 306, allowing air to enter through guide holes 305 to ventilate and cool the patient's back when leaning against it. Furthermore, the device can still be used as a seat cushion after the patient's recovery, improving its adaptability.
[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. An ergonomic chair backrest, comprising a seat assembly (1), characterized in that: The surface of the seat assembly (1) is provided with an adjustment mechanism (2), and the surface of the adjustment mechanism (2) is provided with a lumbar support assembly (3); The adjustment mechanism (2) includes a first fixing bolt (201), which is fixedly installed on the surface of the seat plate assembly (1). The surface of the first fixing bolt (201) is movably mounted with left and right guide rails (202). There are two sets of left and right guide rails (202), which are symmetrically distributed on the surface of the seat plate assembly (1). The surface of the left and right guide rails (202) is provided with a connecting groove. The surface of the left and right guide rails (202) is movably mounted with a first slider (203). The surface of the first slider (203) is fixedly mounted with a first bolt (207). The first bolt (207) is movably installed inside the connecting groove of the first slider (203) and extends to one side of the seat plate assembly (1). The surface of the first bolt (207) is threadedly connected with a first threaded rod (208).
2. The ergonomic chair backrest according to claim 1, characterized in that: A connecting seat (204) is fixedly installed on the surface of the first slider (203), a second fixing bolt (205) is fixedly connected to the surface of the connecting seat (204), and an upper and lower guide rail (211) is fixedly connected to the surface of the second fixing bolt (205). A connecting hole is provided on the surface of the upper and lower guide rail (211).
3. The ergonomic chair backrest according to claim 2, characterized in that: A second slider (206) is movably mounted on the surface of the upper and lower guide rails (211). A second threaded rod (209) is fixedly mounted on the surface of the second slider (206). The second threaded rod (209) is movably mounted inside the communicating groove of the upper and lower guide rails (211) and extends to one side of the seat plate assembly (1). A second bolt (210) is threadedly connected to the surface of the second threaded rod (209).
4. The ergonomic chair backrest according to claim 1, characterized in that: The seat plate assembly (1) includes a back plate (11), which is fixedly installed on the surface of the first fixing bolt (201). The surface of the back plate (11) is provided with a transverse sliding groove (15). There are two sets of transverse sliding grooves (15), which are symmetrically distributed on the surface of the back plate (11). The transverse sliding grooves (15) are adapted to the communicating groove of the first slider (203).
5. The ergonomic chair backrest according to claim 4, characterized in that: The surface of the backrest (11) is provided with a vertical groove (14), which is adapted to the connecting groove of the upper and lower guide rails (211). A base (12) is fixedly installed at the bottom of the backrest (11), and a cushion (13) is connected to the surface of the base (12).
6. The ergonomic chair backrest according to claim 3, characterized in that: The lumbar support assembly (3) includes a connector (301), which is fixedly installed on the surface of the second slider (206). A threaded sleeve (302) is fixedly installed on the surface of the connector (301). Two sets of threaded sleeves (302) are provided, which are symmetrically distributed on the surface of the connector (301). A threaded post (303) is threadedly connected to the surface of the threaded sleeve (302).
7. The ergonomic chair backrest according to claim 6, characterized in that: The threaded post (303) is movably connected to a back plate (304), the back plate (304) has uniformly distributed guide holes (305) on its surface, and a waist pad (306) is connected to the back plate (304).