Ergonomic chair

Abstract

The utility model relates to the technical field of seat, concretely relates to an ergonomic seat. The ergonomic seat includes base, back support, neck support, waist support, adjusting assembly and U type mounting bracket, the neck support is installed at the top of back support, and back support, waist support and base are installed from top to bottom on U type mounting bracket, and U type mounting bracket is rotatably connected with base, and base and U type mounting bracket are rotatably connected with adjusting assembly, and adjusting assembly is used for adjusting the angle of rotation of U type mounting bracket relative to base. The present application is provided with U type mounting bracket, so that the neck support, back support, waist support and base are closely connected to form a whole, the possibility of loosening between each component is reduced, and the angle of rotation of U type mounting bracket relative to base is adjusted and limited through adjusting assembly, so that back support, neck support and waist support can be positioned at the appropriate angle at the same time, the use convenience and structural stability of the ergonomic seat are improved, and the use experience and comfort of the user are improved.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to an ergonomic chair. Background Technology

[0002] With the improvement of people's living standards and changes in work styles, prolonged sitting has become a common occurrence in modern life. Whether working, studying, or relaxing, people often need to maintain a seated posture for extended periods. Traditional chairs consist of a base, backrest, neck support, and lumbar support. The neck support connects to the top of the backrest, the lumbar support connects to the backrest, and the backrest is rotatably connected to the base via a connecting frame. However, the connections of existing chair components are relatively separate, making the chair prone to wobbling or loosening during use. This results in poor overall structural stability, affecting the user experience and comfort. Utility Model Content

[0003] This utility model provides an ergonomic chair to solve the problem that the existing chairs have poor structural stability, which affects the user experience and comfort.

[0004] This utility model discloses an ergonomic chair, including a support foot, a base, a backrest, a neck support, a lumbar support, an adjustment component, and a U-shaped mounting frame. The support foot is disposed on the back of the base, the neck support is mounted on the top of the backrest, and the backrest, lumbar support, and base are mounted on the U-shaped mounting frame from top to bottom. The U-shaped mounting frame is rotatably connected to the base, and both the base and the U-shaped mounting frame are rotatably connected to the adjustment component. The adjustment component is used to adjust and limit the angle of rotation of the U-shaped mounting frame relative to the base.

[0005] Optionally, the back support can be slidably mounted on the U-shaped mounting bracket along the height direction of the U-shaped mounting bracket.

[0006] Optionally, the back support has two mounting grooves on its back side. One of the mounting grooves and the U-shaped mounting bracket is provided with a plurality of adjustment holes distributed along the height direction of the U-shaped mounting bracket, and the other is provided with fixing holes. The two ends of the U-shaped mounting bracket are respectively inserted into the two mounting grooves and are mounted on the back support by fasteners passing through the adjustment holes and the fixing holes.

[0007] Optionally, the ergonomic chair may also include a footrest located near the base, the footrest being retractable and retractable to the back of the base or extending out of the base.

[0008] Optionally, the neck brace is rotatably connected to the back brace, and a limiting structure is provided between the neck brace and the back brace to limit the angle of rotation of the neck brace relative to the back brace.

[0009] Optionally, the ergonomic chair further includes a neck support bracket connected to the backrest. The limiting structure includes a limiting groove on the neck support bracket and a stop portion on the neck support. When the neck support is rotated to its maximum angle, the stop portion abuts against the groove wall of the limiting groove.

[0010] Optionally, the neck brace is slidably mounted on the back support along the height direction of the back support.

[0011] Optionally, the U-shaped mounting bracket includes a back support mounting section, a lumbar support mounting section, a base mounting section, and a connecting cross arm arranged from top to bottom. The back support mounting section and the lumbar support mounting section are arranged at a first angle, with the angle range of 165°-175°. The lumbar support mounting section and the base mounting section are arranged at a second angle, with the angle range of 130°-140°. The connecting cross arm is rotatably connected to the adjustment assembly.

[0012] Optionally, the ergonomic chair further includes a lumbar support connector, on which a receiving groove and a mounting cavity are formed oppositely arranged. The U-shaped mounting bracket is adapted to fit and fixed to the groove wall of the receiving groove. The lumbar support has a mounting protrusion on the side facing the U-shaped mounting bracket, which is adapted to be received in the mounting cavity and fixed to the inner wall of the mounting cavity.

[0013] Optionally, the base, the waist support, and / or the back support are provided with multiple ventilation holes.

[0014] The beneficial effects of the ergonomic chair provided by this utility model embodiment are as follows: By installing the neck support on the top of the back support and setting a U-shaped mounting frame, the back support, lumbar support and base are installed on the U-shaped mounting frame from top to bottom, forming a tightly connected whole, reducing the possibility of loosening between the components; the U-shaped mounting frame is rotatably connected to the base, which makes it convenient for users to adjust the tilt angle of the back support, neck support and lumbar support relative to the base by rotating the U-shaped mounting frame, reducing the possibility of loosening between the components during the tilt angle adjustment process, and setting an adjustment component can adjust and limit the angle of rotation of the U-shaped mounting frame relative to the base, so that the back support, neck support and lumbar support can be rotated and positioned at a suitable angle at the same time. The ergonomic chair has high usability and structural stability, improving the user experience and comfort. Attached Figure Description

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the ergonomic chair according to an embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the ergonomic chair according to another embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the U-shaped mounting bracket according to an embodiment of the present utility model;

[0019] Figure 4 This is an exploded structural diagram of the U-shaped mounting bracket and neck support, back support, and waist support according to an embodiment of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the lumbar support connector according to an embodiment of the present utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of an ergonomic chair (without support legs) according to an embodiment of the present utility model;

[0022] Figure 7 This is an exploded structural diagram of the neck brace and neck brace support according to an embodiment of the present invention.

[0023] The labels for the attached figures are as follows:

[0024] 110. Support foot; 120. Base; 120a. Ventilation hole; 121. Receiving cylinder; 130. Back support; 130a. Mounting groove; 130b. Fixing hole; 140. Neck support; 150. Waist support; 151. Mounting protrusion; 160. Adjustment component; 161. Cylinder; 162. First connector; 163. Second connector; 170. U-shaped mounting bracket; 170a. Adjustment hole; 171. Back support mounting section; 172. Waist support mounting section; 173. Base mounting section; 174. Connecting cross arm; 180. Foot support; 181. Foot support body; 182. Rod; 190. Limiting structure; 191. Limiting groove; 192. Blocking part; 210. Neck support bracket; 220. Waist support connector; 220a. Receiving groove; 220b. Mounting cavity. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] This utility model embodiment provides an ergonomic chair, such as Figure 1 and Figure 2As shown, the ergonomic chair includes a support foot 110, a base 120, a backrest 130, a neck support 140, a lumbar support 150, an adjustment component 160, and a U-shaped mounting bracket 170. The support foot 110 is located on the back of the base 120. The neck support 140 is mounted on the top of the backrest 130. The backrest 130, lumbar support 150, and base 120 are mounted on the U-shaped mounting bracket 170 from top to bottom. The U-shaped mounting bracket 170 is rotatably connected to the base 120. Both the base 120 and the U-shaped mounting bracket 170 are rotatably connected to the adjustment component 160. The adjustment component 160 is used to adjust and limit the angle of rotation of the U-shaped mounting bracket 170 relative to the base 120.

[0027] This application mounts the neck support 140 on top of the back support 130 and provides a U-shaped mounting bracket 170. The base 120, back support 130, and lumbar support 150 are mounted from top to bottom on the U-shaped mounting bracket 170, forming a tightly connected whole and reducing the possibility of loosening between the components. The U-shaped mounting bracket 170 is rotatably connected to the base 120, allowing the user to adjust the tilt angle of the back support 130, neck support 140, and lumbar support 150 relative to the base 120 by rotating the U-shaped mounting bracket 170. This reduces the possibility of loosening between the components during tilt angle adjustment. Furthermore, the adjustment component 160 can adjust and limit the angle of rotation of the U-shaped mounting bracket 170 relative to the base 120, so that the back support 130, neck support 140, and lumbar support 150 can rotate and be positioned at a suitable angle simultaneously. The ergonomic chair has high usability and structural stability, improving the user experience and comfort.

[0028] Specifically, the back support 130 can support the back of the human body, the lumbar support 150 can support the waist of the human body, and the neck support 140 can support the neck and head of the human body. The ergonomic chair can provide support for the back, waist and neck of the human body, and the "S"-shaped design conforms to the natural physiological curvature of the human spine.

[0029] The U-shaped mounting bracket 170 is rotatably connected to the base 120, and the angle limiting the rotation of the U-shaped mounting bracket 170 relative to the base 120 can be adjusted by the adjusting component 160, thereby adjusting the tilt angle of the backrest 130, lumbar support 150, and neck support 140 relative to the base 120. Users can adjust the tilt angle according to their height and resting habits, making operation simple. When the ergonomic chair is not needed for rest, the U-shaped mounting bracket 170 can be rotated to adjust the tilt angle of the backrest 130, neck support 140, and lumbar support 150 relative to the base 120, reducing the space occupied by the ergonomic chair. Therefore, the ergonomic chair of this embodiment can provide comfortable and ergonomic support for users such as students, while also taking into account space utilization efficiency, and its operation is very simple.

[0030] Optionally, the neck brace 140 can use low-density slow-rebound memory foam or ultra-soft high-elasticity foam to provide gentle, pressure-free head and neck support. These materials have the advantages of being flame-retardant (compliant with national standards), stain-resistant, tear-resistant, and easy to disassemble and clean.

[0031] refer to Figure 1 and Figure 3 In an optional embodiment of this application, the U-shaped mounting bracket 170 includes a back support mounting section 171, a lumbar support mounting section 172, a base mounting section 173, and a connecting cross arm 174 arranged from top to bottom. The back support mounting section 171 and the lumbar support mounting section 172 are arranged at a first angle α, with the angle range of the first angle α being 165°-175°. The lumbar support mounting section 172 and the base mounting section 173 are arranged at a second angle b, with the angle range of the second angle b being 130°-140°. The connecting cross arm 174 is rotatably connected to the adjustment assembly 160.

[0032] The back support mounting section 171 and the lumbar support mounting section 172 are set at a first angle α of 165°-175°, allowing the back support 130 and lumbar support 150 mounted thereon to conform well to the natural physiological curves of the human back and waist. When the user sits in the chair, the back support 130 and lumbar support 150 can closely conform to the body, providing continuous and even support for the back and waist, improving user comfort. The first angle α between the back support mounting section 171 and the lumbar support mounting section 172 can be an angle within the range of 165-175°, such as 165°, 167°, 169°, 170°, 171°, 173°, or 175°. Preferably, the first angle α between the back support mounting section 171 and the lumbar support mounting section 172 is 170°.

[0033] The lumbar support mounting section 172 and the base mounting section 173 are set at a second angle b of 130°-140°. This angle range conforms to the natural curvature of the waist and hips when the human body is in a sitting posture. This design allows the lumbar support 150 to better support the waist, while the base 120 can also provide stable support for the hips. This reasonable angle setting allows the user to maintain a natural spinal curve when sitting, improving the comfort of the chair. The second angle b between the lumbar support mounting section 172 and the base mounting section 173 can be an angle within the range of 130°-140°, such as 130°, 132°, 134°, 135°, 136°, 138°, or 140°. Preferably, the second angle b between the back support mounting section 171 and the lumbar support mounting section 172 is 135°.

[0034] Therefore, the ergonomic chair design of this application embodiment can conform to the human body, especially the spinal curve of primary and secondary school students who are in the growth and development period, providing appropriate support for the waist, back and neck, and providing more comfortable rest support for the human body.

[0035] refer to Figures 1 to 4 In an optional embodiment of this application, the back support 130 is slidably mounted on the U-shaped mounting bracket 170 along the height direction of the U-shaped mounting bracket 170.

[0036] Specifically, given the significant height differences among users, the backrest 130 can be slidably mounted on the U-shaped mounting bracket 170 along its height. Users can adjust the backrest 130 to their most suitable position based on their height. For example, taller individuals can slide the backrest 130 upwards to ensure good support for their entire back; while shorter individuals can slide it downwards to better conform to their back, thus improving the comfort and usability of the ergonomic chair. Furthermore, the same user may have different sitting postures in different scenarios. For instance, a more upright posture may be needed while working, while a more reclined posture may be desired during rest. The sliding design of the backrest 130 allows users to flexibly adjust its position according to different sitting posture needs to achieve optimal support and further enhance the user experience.

[0037] refer to Figure 1 , Figure 4 and Figure 5 In an optional embodiment of this application, two mounting grooves 130a are formed on the back of the back support 130. One of the groove wall of the mounting groove 130a and the U-shaped mounting bracket 170 is provided with a plurality of adjustment holes 170a distributed along the height direction of the U-shaped mounting bracket 170, and the other is provided with a fixing hole 130b. The two ends of the U-shaped mounting bracket 170 are respectively inserted into the two mounting grooves 130a and are mounted on the back support 130 by fasteners passing through the adjustment holes 170a and fixing holes 130b.

[0038] Multiple adjustment holes 170a are distributed along the height direction of the U-shaped mounting bracket 170. Users can select the appropriate adjustment hole 170a according to their height and sitting posture habits to fix the backrest 130 at different height positions. This height adjustability can meet the needs of different users and improve the comfort and applicability of the chair. Two mounting slots 130a are inserted into the two ends of the U-shaped mounting bracket 170. The mounting slots 130a can limit the U-shaped mounting bracket 170 and guide the height adjustment of the backrest 130. Through the cooperation of the adjustment holes 170a and the fixing holes 130b with the fastener, the installation position of the backrest 130 can be precisely positioned. After the backrest 130 is adjusted to the appropriate position, the user can pass the fastener through the fixing hole 130b and the adjustment hole 170a and tighten it to complete the installation or position adjustment of the backrest 130. The installation method is simple and allows users to easily make personalized adjustments according to their needs without complicated tools or professional installation skills, improving the ease of use of the ergonomic chair.

[0039] The multiple adjustment holes 170a can be provided on the wall of the mounting groove 130a of the back support 130, and the corresponding fixing holes 130b are provided on the U-shaped mounting bracket 170; alternatively, the multiple adjustment holes 170a can be provided on the U-shaped mounting bracket 170, and the corresponding fixing holes 130b can be provided on the wall of the mounting groove 130a of the back support 130. Preferably, the multiple adjustment holes 170a are distributed along the height direction of the U-shaped mounting bracket 170 on the U-shaped mounting bracket 170, and the fixing holes 130b are provided on the wall of the mounting groove 130a of the back support 130.

[0040] Fasteners can be bolts, screws, or other fasteners that can secure the back support 130 to the U-shaped mounting bracket 170.

[0041] refer to Figure 1 , Figure 2 and Figure 6 In an optional embodiment of this application, the ergonomic chair also includes a footrest 180 disposed near the base 120, the footrest 180 being retractable and stored on the back of the base 120 or extending out of the base 120.

[0042] By retractably mounting the footrest 180 near the base 120, the user can pull the footrest 180 out of the base 120 and place their feet on it when needed, such as when lying in an ergonomic chair. The footrest 180 provides better support for the legs and feet, preventing leg fatigue and back pressure caused by unsupported legs or incorrect posture, thus improving the user experience. When the user does not need to use the footrest 180, it can be stored on the back of the base 120.

[0043] Optionally, the base 120 has a receiving cylinder 121 on its back. The footrest 180 includes a footrest body 181 and a rod 182 connected to the footrest body 181, with the rod 182 passing through the receiving cylinder 121. The receiving cylinder 121 provides a precise guide channel for the rod 182 of the footrest 180, enabling the footrest 180 to maintain a stable and straight movement trajectory during extension and retraction. This prevents the footrest 180 from wobbling or shifting during extension and retraction, ensuring the stability and reliability of the footrest 180 and providing stable leg support for the user.

[0044] refer to Figure 1 , Figure 2 and Figure 7 In an optional embodiment of this application, the neck brace 140 is rotatably connected to the back support 130, and a limiting structure 190 is provided between the neck brace 140 and the back support 130. The limiting structure 190 is used to limit the angle of rotation of the neck brace 140 relative to the back support 130.

[0045] The rotatable connection between the neck support 140 and the back support 130 allows the neck support 140 to be adjusted in angle according to the user's neck shape and usage habits. This adjustability meets the personalized needs of different users, enabling the neck support 140 to better conform to the neck curve and provide comfortable support. For example, users can adjust the angle of the neck support 140 according to their neck curvature and usage scenario (such as working, resting, reading, etc.) to obtain the best support effect. The limiting structure 190 can limit the rotation angle of the neck support 140 relative to the back support 130, preventing the neck support 140 from rotating excessively and losing its support function or causing discomfort to the neck. This limiting design ensures the stability of the neck support 140 during use and avoids safety hazards caused by excessive adjustment.

[0046] refer to Figure 1 , Figure 2 and Figure 7 In an optional embodiment of this application, the ergonomic chair also includes a neck support bracket 210 connected to the backrest 130. The limiting structure 190 includes a limiting groove 191 disposed on the neck support bracket 210 and an abutment portion 192 disposed on the neck support 140. When the neck support 140 is rotated to the maximum angle, the abutment portion 192 abuts against the groove wall of the limiting groove 191.

[0047] The cooperation between the limiting groove 191 and the abutment 192 clearly limits the maximum rotation angle of the neck brace 140. When the neck brace 140 rotates to its maximum angle, the abutment 192 abuts against the groove wall of the limiting groove 191, forming a physical block to prevent the neck brace 140 from continuing to rotate. This clear limitation ensures that the rotation angle of the neck brace 140 is always within a safe and reasonable range, avoiding neck discomfort or injury caused by excessive rotation.

[0048] In an optional embodiment of this application, the neck brace 210 is slidably disposed on the back support 130 along the height direction of the back support 130.

[0049] By sliding the neck support bracket 210 along the height of the backrest 130, users can independently adjust the position of the neck support 140 to a comfortable position according to their neck height and shape, improving user comfort. Furthermore, users' postures vary in different usage scenarios. For example, during long periods of work, users may need a more upright sitting posture, in which case the neck support 140 can be adjusted to a higher position to provide good neck support; while during rest or reading, users may prefer to lean back more, in which case the neck support 140 can be adjusted to a lower position to provide more relaxed support. This dynamic adjustment convenience enhances the user experience, making the ergonomic chair more flexible and practical.

[0050] refer to Figure 4 and Figure 5 In an optional embodiment of this application, the ergonomic chair further includes a lumbar support connector 220. The lumbar support connector 220 has a receiving groove 220a and a mounting cavity 220b arranged opposite to each other. The U-shaped mounting bracket 170 is adapted to fit and fixed to the groove wall of the receiving groove 220a. The lumbar support 150 has a mounting protrusion 151 protruding from the side facing the U-shaped mounting bracket 170. The mounting protrusion 151 is adapted to be received in the mounting cavity 220b and fixed to the inner wall of the mounting cavity 220b.

[0051] The lumbar support 150 is fixed to the U-shaped mounting bracket 170 via the lumbar support connector 220. The U-shaped mounting bracket 170 fits snugly against the wall of the receiving groove 220a and is fixed in place. This design ensures a tight fit between the U-shaped mounting bracket 170 and the lumbar support connector 220, increasing the contact area between them and effectively preventing the U-shaped mounting bracket 170 from shaking or loosening during use, thereby improving the overall stability of the seat structure. Simultaneously, the U-shaped mounting bracket 170's close fit to the wall of the receiving groove 220a further enhances its robustness, enabling it to withstand greater external forces without deformation. The lumbar support 150 is fitted and accommodated in the mounting cavity 220b by the mounting protrusion 151 and fixed to the inner wall of the mounting cavity 220b. This allows the lumbar support 150 to be fixedly mounted on the U-shaped bracket by the lumbar support connector 220, ensuring that the lumbar support 150 always maintains a stable position during use. The stable position of the lumbar support 150 can provide continuous and even support for the waist.

[0052] In practice, the lumbar support 150 can be fixed to the lumbar support connector 220 with bolts or high-strength buckles, and the U-shaped mounting bracket 170 can be fixed to the lumbar support connector 220, so that the connection between the lumbar support 150, the lumbar support connector 220 and the U-shaped mounting bracket 170 is stable and not easy to loosen or produce abnormal noise.

[0053] refer to Figure 4 In an optional embodiment of this application, the base 120, waist support 150 and / or back support 130 are provided with a plurality of ventilation holes 120a.

[0054] Ventilation holes 120a promote air circulation between the inside and outside of the ergonomic chair, keeping the air on the surface of the ergonomic chair fresh. When using the ergonomic chair for a long time, the parts of the body that come into contact with the chair, such as the buttocks and back, will generate heat and moisture. The ventilation holes 120a on the base 120 and backrest 130 can effectively expel this heat and moisture, prevent sweat buildup, keep the skin dry, and reduce skin dampness and discomfort caused by prolonged sitting.

[0055] refer to Figure 6In an optional embodiment of this application, the adjustment component 160 includes a cylinder 161, a first connector 162, a second connector 163, and a locking member 164. The first connector 162 is fixed on the U-shaped mounting bracket 170, and the second connector 163 is fixed on the back of the base 120. The cylinder body of the cylinder 161 is rotatably connected to the first connector 162, and the movable end is rotatably connected to the second connector 163. The locking member 164 is used to lock the position of the movable end of the cylinder.

[0056] Specifically, the first connecting piece 162 and the second connecting piece 163 are respectively fixed to the U-shaped mounting bracket 170 and the base 120. This fixing method ensures that the cylinder 161 remains stable during adjustment. The cylinder body of the cylinder 161 is rotatably connected to the first connecting piece 162, and the movable end is rotatably connected to the second connecting piece 163. This connection method not only enables angle adjustment but also ensures the reliability of the connection, preventing loosening or detachment during use. Moreover, the cylinder 161 typically provides stepless adjustment, meaning that users can adjust within a continuous angle range, rather than just a few fixed angles. With the above structure, users can operate the U-shaped mounting bracket 170 to easily adjust the seat's tilt angle, find the most suitable sitting posture, and lock it using the locking piece 164, meeting the needs of different users in different usage scenarios and improving the comfort and applicability of the seat.

[0057] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. An ergonomic chair, characterized in that, The device includes a support foot, a base, a back support, a neck support, a lumbar support, an adjustment component, and a U-shaped mounting bracket. The support foot is located on the back of the base, the neck support is mounted on the top of the back support, and the back support, lumbar support, and base are mounted on the U-shaped mounting bracket from top to bottom. The U-shaped mounting bracket is rotatably connected to the base, and both the base and the U-shaped mounting bracket are rotatably connected to the adjustment component. The adjustment component is used to adjust and limit the angle of rotation of the U-shaped mounting bracket relative to the base.

2. The ergonomic seat of claim 1, wherein, The back support can be slidably mounted on the U-shaped mounting bracket along its height direction.

3. The ergonomic seat of claim 2, wherein, The back support has two mounting grooves on its back side. One of the mounting grooves and the U-shaped mounting bracket has multiple adjustment holes distributed along the height direction of the U-shaped mounting bracket, and the other has a fixing hole. The two ends of the U-shaped mounting bracket are respectively inserted into the two mounting grooves and are mounted on the back support by fasteners passing through the adjustment holes and the fixing holes.

4. The ergonomic seat of claim 1, wherein, The ergonomic chair also includes a footrest located near the base, which can be retracted and stored on the back of the base or extended out of the base.

5. The ergonomic seat of claim 1, wherein, The neck brace is rotatably connected to the back brace, and a limiting structure is provided between the neck brace and the back brace to limit the angle of rotation of the neck brace relative to the back brace.

6. The ergonomic seat of claim 5, wherein, The ergonomic chair also includes a neck support bracket connected to the backrest. The limiting structure includes a limiting groove on the neck support bracket and a stop portion on the neck support. When the neck support is rotated to its maximum angle, the stop portion abuts against the groove wall of the limiting groove.

7. The ergonomic chair according to claim 6, characterized in that, The neck brace is slidably mounted on the back support along the height direction of the back support.

8. The ergonomic seat of claim 1, wherein, The U-shaped mounting bracket includes a back support mounting section, a lumbar support mounting section, a base mounting section, and a connecting cross arm arranged from top to bottom. The back support mounting section and the lumbar support mounting section are set at a first angle, with the angle ranging from 165° to 175°. The lumbar support mounting section and the base mounting section are set at a second angle, with the angle ranging from 130° to 140°. The connecting cross arm is rotatably connected to the adjustment assembly.

9. The ergonomic seat of claim 1, wherein, The ergonomic chair also includes a lumbar support connector, on which are formed a receiving groove and an installation cavity arranged opposite to each other. The U-shaped mounting bracket is adapted to fit and fixed to the groove wall of the receiving groove. The lumbar support has a mounting protrusion protruding on the side facing the U-shaped mounting bracket. The mounting protrusion is adapted to be received in the installation cavity and fixed to the inner wall of the installation cavity.

10. The ergonomic seat according to any one of claims 1-9, wherein, The base, the waist support, and / or the back support are provided with multiple ventilation holes.

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