Multifunctional ergonomic chair

Abstract

The invention belongs to the technical field of ergonomic chairs and discloses a multifunctional ergonomic chair which comprises a bottom plate, the upper end of the bottom plate is fixedly connected with an adjusting assembly, the adjusting assembly comprises a lower rotating frame rotationally connected with the inner side surface of the bottom plate, and the upper end of the lower rotating frame is fixedly connected with a first shock absorber; a top sliding block is rotatably connected to the upper end of the first shock absorber, a middle plate is rotatably connected to the upper end of the top sliding block, an upper rotating frame is rotatably connected to the surface of the inner side of the middle plate, first linkage blocks are rotatably connected to the surfaces of the outer sides of the lower rotating frame and the upper rotating frame, and a second shock absorber is fixedly connected between the adjacent first linkage blocks; according to the design, the problems that the back is incompletely supported when the user lies obliquely and the waist is suspended due to the fact that the buttocks slide forwards when the user leans backwards are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ergonomic chairs, and particularly relates to a multifunctional ergonomic chair. BACKGROUND

[0002] The ergonomic chair is a seat designed according to scientific principles such as human anatomy and biomechanics, and the core goal thereof is to actively adapt to the human form and dynamic posture through adjustable structures and scientific support, and to minimize physiological burden caused by long sitting. In the process of using the existing ergonomic chair, the user may appear to lie with a tilted head and a biased head, at which time one side of the user's back will be lifted, causing the back to be suspended, affecting the overall use effect. Meanwhile, when the existing ergonomic chair needs to be reclined, the hip may be forwardly slid, causing the waist to be suspended, affecting the overall comfort and practicability. SUMMARY

[0003] The present application aims at the problems of the existing technology, i.e., the incomplete back support when lying with a biased head and the waist suspension caused by the forward sliding of the hip when reclining, and proposes the following technical solution: A multifunctional ergonomic chair, comprising: a bottom plate; an adjusting assembly fixedly connected to the upper end of the bottom plate, the adjusting assembly comprising: a lower rotating frame rotatably connected to the inner side surface of the bottom plate, the upper end of the lower rotating frame being fixedly connected with a shock absorber one, the upper end of the shock absorber one being rotatably connected with a top sliding block, the upper end of the top sliding block being rotatably connected with an intermediate plate, the inner side surface of the intermediate plate being rotatably connected with an upper rotating frame, the outer side surfaces of the lower rotating frame and the upper rotating frame being rotatably connected with linkage blocks one, and the adjacent linkage blocks one being fixedly connected with a shock absorber two.

[0004] As a preferred embodiment of the above technical solution, the adjusting assembly further comprises: a reset spring rod fixedly connected to the upper end of the bottom plate, the other end of the reset spring rod being fixedly connected with a Y-shaped frame, the bottom end of the Y-shaped frame being slidingly connected with the upper end of the bottom plate, the adjacent opposite faces of the Y-shaped frames being fixedly connected with telescopic rods, and the end of the Y-shaped frame away from the reset spring rod being fixedly connected with an arc-shaped limiting push plate; a lower positioning column fixedly connected to the middle part of the bottom end of the bottom plate, the outer side surface of the lower positioning column abutting against the end of the arc-shaped limiting push plate away from the Y-shaped frame.

[0005] As a preferred embodiment of the above technical solution, the adjusting assembly further comprises: a small spring fixedly connected to the upper end of the intermediate plate, the upper end of the small spring being fixedly connected with chair surfaces, and the inner walls of the chair surfaces being slidingly connected with the outer side surface of the intermediate plate. The handrail is fixedly connected to the bottom end of the intermediate plate, and the intermediate plate is located outside the chair surface.

[0006] As the preferred technical solution, the adjusting assembly further comprises: The intermediate member is rotationally connected to the bottom end of the intermediate plate, and the outer side surface of the intermediate member is rotationally connected with the linkage arm one, and the other end of the linkage arm one is rotationally connected with the outer side surface of the rear Y-shaped frame. The shock absorber three is fixedly connected to the upper end of the intermediate member, and the other end of the shock absorber three is fixedly connected with the linkage block two, and the inner side surface of the linkage block two is rotationally connected with the slide rod, and the outer side surface of the upper portion of the slide rod is slidingly connected with the inner side surface of the intermediate plate.

[0007] As the preferred technical solution, the adjusting assembly further comprises: The back plate assembly is rotationally connected to the bottom end of the intermediate plate, and the back plate assembly comprises: The back plate frame is rotationally connected to the inner side surface of the rear portion of the intermediate plate, and the lower portion of the outer side surface of the back plate frame is fixedly connected with the lower rod frame, and the outer side surface of the lower rod frame is slidingly connected with the lower slide frame, and the inner side surface of the lower slide frame is rotationally connected with the waist guide plate, and the end of the waist guide plate away from the lower rod frame is fixedly connected with the lateral shock absorber, and the other end of the lateral shock absorber is fixedly connected with the side waist plate.

[0008] As the preferred technical solution, the back plate assembly further comprises: The shock absorber four is fixedly connected to the lower portion of the front end of the back plate frame, and the other end of the shock absorber four is fixedly connected with the waist recess plate, and the front and rear ends of the waist recess plate are rotationally connected with the inner side surface of the side waist plate, and the rear end of the waist recess plate is clamped with the clamping block, and the rear end of the side waist plate is rotationally connected with the L-shaped block, and the shock absorber five is fixedly connected between the opposite surfaces of the L-shaped block and the clamping block. The upper rod frame is fixedly connected to the outer side surface of the upper portion of the back plate frame, and the outer side surface of the upper rod frame is slidingly connected with the back guide plate.

[0009] As the preferred technical solution, the back plate assembly further comprises: The first-level shock absorber is fixedly connected to the upper portion of the front end of the back plate frame, and the other end of the first-level shock absorber is fixedly connected with the partition plate, and the other end of the partition plate is fixedly connected with the second-level shock absorber, and the other end of the second-level shock absorber is rotationally connected with the positioning member, and the outer side surface of the positioning member is rotationally connected with the side back plate. The back rotating frame is rotationally connected to the inner side surfaces of the back guide plate and the side back plate, and the shock absorber six is fixedly connected between the opposite surfaces of the back rotating frame, and the front end of the back guide plate is fixedly connected with the back positioning column, and the front end of the back positioning column abuts against the rear end of the side back plate. The top frame is rotatably connected to the inner side surface of the top of the back plate frame, and a shock absorber seven is fixedly connected to the front end of the top frame.

[0010] As the preferred technical solution, the back plate assembly further comprises: The auxiliary spring rod is rotatably connected to the outer side surface of the rear end of the top frame, and the other end of the auxiliary spring rod is rotatably connected to the top outer side surface of the back plate frame. The shock absorber eight is rotatably connected to the inner side surface of the rear end of the neck pillow, and the other end of the shock absorber eight is rotatably connected to the inner side surface of the rear end of the side back plate. The linkage swivel frame is rotatably connected to the rear end of the side back plate and the side waist plate, and a shock absorber nine is fixedly connected between the opposite surfaces of the linkage swivel frame. The linkage arm two is rotatably connected to the bottom end of the back plate frame, and the other end of the linkage arm two is rotatably connected to the other end of the sliding rod.

[0011] As the preferred technical solution, the back plate assembly further comprises: The air rod is fixedly connected to the bottom end of the bottom plate. The bottom frame is fixedly connected to the bottom end of the air rod, and a plurality of universal wheels are rotatably connected to the bottom end of the bottom frame.

[0012] The beneficial effects of the present application are: Through the linkage relationship of the clamping block, the L-shaped block and the shock absorber five, when the waist plate is pressed, the side waist plate is driven to rotate inward, thereby wrapping the user's waist and improving the waist support effect. When the user tilts his head, the other side of the shoulder and back will move in the opposite direction. Through the transmission effect of the shock absorber eight on the neck pillow and the side back plate, when the user rotates his head to press the neck pillow on one side, the other side of the upper rod frame is driven to move forward, which fits the user's shoulder and back, avoids the local suspension of the shoulder and back when tilting the head, improves the overall fitting degree and practicality, and the side back plate can change angles through the limiting of the back guide plate, the back swivel frame and the shock absorber six. Through the rotation fulcrum of the back positioning column as the side back plate, the limiting of the side back plate by the positioning piece and the linkage of the linkage swivel frame and the shock absorber nine, the smooth transition of the side waist plate and the side back plate at the junction and the inner edge of the side back plate and the user's spine can be ensured, which further ensures the fitting effect and the buffer pressure relief effect of the side waist plate, the waist plate and the side back plate to the user's back. When the user leans back, the back plate frame is rotated, and under the linkage of the back plate frame, linkage arm two and the slide rod, the slide rod can be moved horizontally under the limiting of the middle plate, and under the linkage of the middle transfer piece, linkage arm one, shock absorber three, linkage block two and the slide rod and the limiting of the bottom plate to the Y-shaped frame, the Y-shaped frame can be slid, so as to release the limiting of the arc-shaped limiting push plate to the lower positioning column, facilitate the synchronous rotation of the middle plate and the chair surface, realize the synchronous movement of the back plate assembly and the chair surface, avoid the friction caused by the back leaning, and cause the hip to slide forward, so that the waist is out of the supporting area and feels suspended, and at the same time, according to the angle of the back leaning, the middle plate and the chair surface are limited to different degrees, the overall comfort and practicability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A perspective view of a multifunctional ergonomic chair is shown. Figure 2 A perspective view of a multifunctional ergonomic chair is shown. Figure 3 A perspective view of a multifunctional ergonomic chair is shown. Figure 2 A partial enlarged view of A in the middle. Figure 4 A perspective view of a multifunctional ergonomic chair is shown. Figure 2 A partial enlarged view of B in the middle. Figure 5 A perspective view of a multifunctional ergonomic chair is shown. Figure 6 A perspective view of a multifunctional ergonomic chair is shown. Figure 5 A partial enlarged view of C in the middle. Figure 7 A perspective view of a multifunctional ergonomic chair is shown. Figure 5 A partial enlarged view of D in the middle. Figure 8 A partial view of the back plate assembly is shown. Figure 9 A partial view of the back plate assembly is shown. Figure 10 A perspective view of a multifunctional ergonomic chair is shown. Figure 9 An exploded view of a multifunctional ergonomic chair is shown. Figure 11 A perspective view of a multifunctional ergonomic chair is shown. Figure 9 An exploded view of a multifunctional ergonomic chair is shown. Figure 12 A perspective view of a multifunctional ergonomic chair is shown. Figure 13 A perspective view of a multifunctional ergonomic chair is shown. Figure 12 A partial enlarged view of E in the middle.

[0014] In the diagram: 1. Base plate; 2. Adjustment assembly; 201. Lower rotating frame; 202. Shock absorber one; 203. Top slider; 204. Middle plate; 205. Upper rotating frame; 206. Linkage block one; 207. Shock absorber two; 208. Return spring rod; 209. Y-shaped frame; 210. Telescopic rod; 211. Arc-shaped limit push plate; 212. Lower positioning column; 213. Small spring; 214. Seat surface; 215. Armrest; 216. Intermediate component; 217. Linkage arm one; 218. Shock absorber three; 219. Linkage block two; 220. Slide rod; 3. Back panel assembly; 301. Back panel frame; 302. Lower rod frame; 303. Lower sliding frame; 304. Waist support. 305. Guide plate; 306. Lateral shock absorber; 307. Side waist plate; 308. Shock absorber four; 309. Waist recess plate; 310. Locking block; 311. L-shaped block; 312. Shock absorber five; 313. Upper pole frame; 314. Back guide plate; 315. Primary shock absorber; 316. Secondary shock absorber; 317. Side back plate; 318. Back rotating frame; 319. Shock absorber six; 320. Back positioning column; 321. Top frame; 322. Shock absorber seven; 323. Neck pillow; 324. Auxiliary spring rod; 325. Linkage rotating frame; 326. Shock absorber nine; 327. Linkage arm two; 4. Gas spring; 5. Base frame; 6. Casters. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0016] Example 1 This invention provides a multifunctional ergonomic chair, such as Figures 1 to 13 As shown, the seat includes a base plate 1, which serves as the basic component at the bottom of the seat and supports the components above, providing a stable installation platform for the entire seat. An adjustment component 2 is fixedly connected to the upper end of the base plate 1, and a back panel component 3 is rotatably connected to the rear end of the adjustment component 2. A gas spring 4 is fixedly connected to the bottom end of the base plate 1, which is the core component for adjusting the seat height. By extending and retracting the gas spring 4, the seat height can be flexibly adjusted to meet the needs of users of different heights. A base frame 5 is fixedly connected to the bottom end of the gas spring 4, and several casters 6 are rotatably connected to the bottom end of the base frame 5, allowing the seat to move flexibly and making it convenient for users to adjust their position. The adjusting assembly 2 comprises a lower rotating frame 201 rotatably connected to the inner side surface of the bottom plate 1, the upper end of the lower rotating frame 201 is fixedly connected with a shock absorber 202, the upper end of the shock absorber 202 is rotatably connected with a top sliding block 203, the upper end of the top sliding block 203 is rotatably connected with an intermediate plate 204, the inner side surface of the intermediate plate 204 is rotatably connected with an upper rotating frame 205, the outer side surfaces of the lower rotating frame 201 and the upper rotating frame 205 are rotatably connected with linkage blocks 206, the adjacent linkage blocks 206 are fixedly connected with a shock absorber 207, the shock absorber 207 and the shock absorber 202 are arranged, which can play a buffering and damping effect when the user sits or moves, improve the comfort of the user, the upper end of the bottom plate 1 is fixedly connected with a reset spring rod 208, the other end of the reset spring rod 208 is fixedly connected with a Y-shaped frame 209, the bottom end of the Y-shaped frame 209 is slidingly connected with the upper end of the bottom plate 1, the adjacent Y-shaped frames 209 are fixedly connected with telescopic rods 210 between the opposite surfaces of the Y-shaped frames 209, the end of the Y-shaped frame 209 away from the reset spring rod 208 is fixedly connected with an arc-shaped limiting push plate 211, the middle part of the bottom end of the bottom plate 1 is fixedly connected with a lower positioning column 212, the outer side surface of the lower positioning column 212 abuts against the end of the arc-shaped limiting push plate 211 away from the Y-shaped frame 209, the upper end of the intermediate plate 204 is fixedly connected with small springs 213, the upper ends of the small springs 213 are fixedly connected with seat surfaces 214, the plurality of uniformly distributed small springs 213 can drive the seat surfaces 214 to cover the hips of the user, thereby improving the comfort of the user, the inner wall of the seat surface 214 is slidingly connected with the outer side surface of the intermediate plate 204, the bottom end of the intermediate plate 204 is fixedly connected with armrests 215, which provide support for the arms of the user and reduce the fatigue of the arms, the intermediate plate 204 is located outside the seat surface 214, the bottom end of the intermediate plate 204 is rotatably connected with a middle transfer piece 216, the outer side surface of the middle transfer piece 216 is rotatably connected with a linkage arm 217, the other end of the linkage arm 217 is rotatably connected with the outer side surface of the rear Y-shaped frame 209, the upper end of the middle transfer piece 216 is fixedly connected with a shock absorber 218, the other end of the shock absorber 218 is fixedly connected with a linkage block 219, the inner side surface of the linkage block 219 is rotatably connected with a sliding rod 220, the upper outer side surface of the sliding rod 220 is slidingly connected with the inner side surface of the intermediate plate 204, when the user leans back, the back plate frame 301 is driven to rotate, under the linkage action of the back plate frame 301, the linkage arm 327 and the sliding rod 220, the sliding rod 220 can slide horizontally under the limitation of the intermediate plate 204, under the linkage action of the middle transfer piece 216, the linkage arm 217, the shock absorber 218, the linkage block 219 and the sliding rod 220 and the limitation of the bottom plate 1 to the Y-shaped frame 209, the Y-shaped frame 209 can slide, thereby releasing the limitation of the arc-shaped limiting push plate 211 to the lower positioning column 212, facilitating the synchronous rotation of the intermediate plate 204 and the seat surface 214, realizing the synchronous movement of the back plate assembly 3 and the seat surface 214, avoiding the friction caused by the back leaning to drive the hips to slide forward, thereby avoiding the situation that the waist is out of the support area and feels suspended,Meanwhile, the middle plate 204 and the seat surface 214 are limited according to the angle of the backward leaning, and the supporting force does not change suddenly, so that the comfort and practicability are improved.

[0017] As Figures 1 to 13As shown, the bottom end of the intermediate plate 204 is rotatably connected with a back plate assembly 3, the back plate assembly 3 comprises a back plate frame 301 rotatably connected with the rear inner side surface of the intermediate plate 204, the lower outer side surface of the back plate frame 301 is fixedly connected with a lower rod frame 302, the outer side surface of the lower rod frame 302 is slidably connected with a lower sliding frame 303, the inner side surface of the lower sliding frame 303 is rotatably connected with a waist guide plate 304, the end of the waist guide plate 304 away from the lower rod frame 302 is fixedly connected with a lateral shock absorber 305, the other end of the lateral shock absorber 305 is fixedly connected with a lateral waist plate 306, the front end lower part of the back plate frame 301 is fixedly connected with a shock absorber four 307, the other end of the shock absorber four 307 is fixedly connected with a waist recess plate 308, the front and rear ends of the waist recess plate 308 are rotatably connected with the inner side surface of the lateral waist plate 306, the rear end of the waist recess plate 308 is clamped with a clamping block 309, the rear end of the lateral waist plate 306 is rotatably connected with an L-shaped block 310, the L-shaped block 310 is fixedly connected with a shock absorber five 311 between the opposite surfaces of the clamping block 309, the upper outer side surface of the back plate frame 301 is fixedly connected with an upper rod frame 312, the outer side surface of the upper rod frame 312 is slidably connected with a back guide plate 313, the upper front end of the back plate frame 301 is fixedly connected with a first-level shock absorber 314, the other end of the first-level shock absorber 314 is fixedly connected with a partition plate, the other end of the partition plate is fixedly connected with a second-level shock absorber 315, the other end of the second-level shock absorber 315 is rotatably connected with a positioning piece, the outer side surface of the positioning piece is rotatably connected with a lateral back plate 316, when the user sits down, the back is first abutted with the lateral back plate 316, and double buffering is conducted through the first-level shock absorber 314 and the second-level shock absorber 315, so as to improve the buffering and supporting effect of the lateral back plate 316 when the user quickly sits down or jumps to sit on the chair, improve the overall service life and practicality, the waist recess plate 308, the lateral back plate 316 and the lateral waist plate 306 respectively fit the side surface of the human waist and back and the waist recess part, and the surfaces are all covered with cloth with elasticity and air permeability effect, targeted support is provided, and the comfort of leaning is enhanced, the inner side surface of the back guide plate 313 and the lateral back plate 316 is rotatably connected with a back rotating frame 317, the back rotating frame 317 is fixedly connected with a shock absorber six 318 between the opposite surfaces, the front end of the back guide plate 313 is fixedly connected with a back positioning column 319, the front end of the back positioning column 319 is abutted with the rear end of the lateral back plate 316, the top inner side surface of the back plate frame 301 is rotatably connected with a top frame 320, the front end of the top frame 320 is fixedly connected with a shock absorber seven 321, the front end of the shock absorber seven 321 is fixedly connected with a neck pillow 322 for supporting the neck of the user and relieving neck fatigue, the rear end outer side surface of the top frame 320 is rotatably connected with an auxiliary spring rod 323, the auxiliary spring rod 323 can drive the top frame 320 to return to normal, improve the overall use effect, the other end of the auxiliary spring rod 323 is rotatably connected with the top outer side surface of the back plate frame 301, the rear end inner side surface of the neck pillow 322 is rotatably connected with a shock absorber eight 324, the other end of the shock absorber eight 324 is rotatably connected with the rear end inner side surface of the lateral back plate 316,The rear end of the side back plate 316 and the side waist plate 306 is rotationally connected with a linkage rotating frame 325, and the opposite surfaces of adjacent linkage rotating frames 325 are fixedly connected with shock absorbers nine 326. Through the shock absorbers four 307, the shock absorbers five 311, the shock absorbers six 318, the shock absorbers seven 321, the shock absorbers eight 324 and the shock absorbers nine 326 distributed at different positions, different degrees of buffering and damping effects are provided under the action of the leaning intensity and posture of the user, the pressure on the back is reduced, and the comfort of the back support is improved. The bottom end of the back plate frame 301 is rotationally connected with a linkage arm two 327, and the other end of the linkage arm two 327 is rotationally connected with the other end of the slide rod 220. Through the linkage relationship of the clamping block 309, the L-shaped block 310 and the shock absorber five 311, when the lumbar plate 308 is subjected to extrusion, the side waist plate 306 can be driven to rotate inward, thereby wrapping the waist of the user and improving the waist support effect on the user. When the user turns his head, the shoulder and back on the other side will move in the opposite direction. Through the transmission effect of the shock absorber eight 324 on the neck pillow 322 and the side back plate 316, when the user rotates his head to extrude the neck pillow 322 on one side, the other side of the upper rod frame 312 can be driven to move forward to fit the shoulder and back of the user, avoiding the local suspension of the shoulder and back when the head is turned to one side, improving the overall fitting degree and practicability. At the same time, the side back plate 316 can change various angles under the limitation of the back guiding plate 313, the back rotating frame 317 and the shock absorber six 318. Through the back positioning column 319 as the rotation fulcrum of the side back plate 316, the limiting of the limiting piece on the side back plate 316 and the connecting rod effect of the linkage rotating frame 325 and the shock absorber nine 326, the smooth transition of the junction of the side waist plate 306 and the side back plate 316 and the inside edge of the side back plate 316 and the spine of the user can be ensured, further ensuring the fitting effect and the buffering pressure relief effect of the side waist plate 306, the lumbar plate 308 and the side back plate 316 on the back of the user.

[0018] The above examples are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A multi-functional ergonomic chair, characterized by, Include: The bottom plate (1); Adjustment assembly (2), fixedly connected to the upper end of the bottom plate (1), the adjustment assembly (2) comprises: Lower turret (201), rotatably connected to the inner side surface of the bottom plate (1), the upper end of the lower turret (201) is fixedly connected with shock absorber one (202), the upper end of the shock absorber one (202) is rotatably connected with top sliding block (203), the upper end of the top sliding block (203) is rotatably connected with intermediate plate (204), the inner side surface of the intermediate plate (204) is rotatably connected with upper turret (205), the outer side surface of the lower turret (201) and the upper turret (205) is rotatably connected with linkage block one (206), the adjacent linkage block one (206) is fixedly connected with shock absorber two (207).

2. The multi-functional ergonomic chair according to claim 1, wherein The adjustment assembly (2) further comprises: Reset spring rod (208), fixedly connected to the upper end of the bottom plate (1), the other end of the reset spring rod (208) is fixedly connected with Y-shaped frame (209), the bottom end of the Y-shaped frame (209) is slidingly connected with the upper end of the bottom plate (1), the adjacent Y-shaped frame (209) opposite surface is fixedly connected with telescopic rod (210), the end of the Y-shaped frame (209) away from the reset spring rod (208) is fixedly connected with arc-shaped limit push plate (211); Lower positioning column (212), fixedly connected to the bottom end of the bottom plate (1), the outer side surface of the lower positioning column (212) abuts with the end of the arc-shaped limit push plate (211) away from the Y-shaped frame (209).

3. The multi-functional ergonomic chair according to claim 2, wherein, The adjustment assembly (2) further comprises: Small spring (213), fixedly connected to the upper end of the intermediate plate (204), the upper end of the small spring (213) is fixedly connected with chair surface (214), the inner wall of the chair surface (214) is slidingly connected with the outer side surface of the intermediate plate (204); Handrail (215), fixedly connected to the bottom end of the intermediate plate (204), the intermediate plate (204) is located outside the chair surface (214).

4. The multi-functional ergonomic chair according to claim 2, wherein The adjustment assembly (2) further comprises: Middle transfer part (216), rotatably connected to the bottom end of the intermediate plate (204), the outer side surface of the middle transfer part (216) is rotatably connected with linkage arm one (217), the other end of the linkage arm one (217) is rotatably connected with the outer side surface of the rear Y-shaped frame (209); Shock absorber three (218), fixedly connected to the upper end of the middle transfer part (216), the other end of the shock absorber three (218) is fixedly connected with linkage block two (219), the inner side surface of the linkage block two (219) is rotatably connected with slide rod (220), the upper outer side surface of the slide rod (220) is slidingly connected with the inner side surface of the intermediate plate (204).

5. The multi-functional ergonomic chair according to claim 2, wherein Further comprising: Back plate assembly (3), rotatably connected to the bottom end of the intermediate plate (204), the back plate assembly (3) comprises: The back plate frame (301) is rotationally connected to the rear inner side surface of the middle plate (204), the lower outer side surface of the back plate frame (301) is fixedly connected with the lower rod frame (302), the outer side surface of the lower rod frame (302) is slidingly connected with the lower sliding frame (303), the inner side surface of the lower sliding frame (303) is rotationally connected with the waist guide plate (304), one end of the waist guide plate (304) away from the lower rod frame (302) is fixedly connected with the lateral shock absorber (305), the other end of the lateral shock absorber (305) is fixedly connected with the lateral waist plate (306).

6. The multi-functional ergonomic chair according to claim 5, wherein The back plate assembly (3) further comprises: The shock absorber four (307) is fixedly connected to the front end lower part of the back plate frame (301), the other end of the shock absorber four (307) is fixedly connected with the waist groove plate (308), the front and rear ends of the waist groove plate (308) are rotationally connected with the inner side surface of the lateral waist plate (306), the rear end of the waist groove plate (308) is clamped with the clamping block (309), the rear end of the lateral waist plate (306) is rotationally connected with the L-shaped block (310), the L-shaped block (310) and the clamping block (309) are fixedly connected with the shock absorber five (311) between the opposite surfaces thereof; The upper rod frame (312) is fixedly connected to the upper outer side surface of the back plate frame (301), the outer side surface of the upper rod frame (312) is slidingly connected with the back guide plate (313).

7. The multi-functional ergonomic chair according to claim 6, wherein The back plate assembly (3) further comprises: The first-stage shock absorber (314) is fixedly connected to the upper front end of the back plate frame (301), the other end of the first-stage shock absorber (314) is fixedly connected with the partition plate, the other end of the partition plate is fixedly connected with the second-stage shock absorber (315), the other end of the second-stage shock absorber (315) is rotationally connected with the positioning member, the outer side surface of the positioning member is rotationally connected with the lateral back plate (316); The back rotating frame (317) is rotationally connected to the inner side surfaces of the back guide plate (313) and the lateral back plate (316), the shock absorber six (318) is fixedly connected between the opposite surfaces of the back rotating frame (317), the front end of the back guide plate (313) is fixedly connected with the back positioning column (319), the front end of the back positioning column (319) abuts against the rear end of the lateral back plate (316); The top frame (320) is rotationally connected to the top inner side surface of the back plate frame (301), the front end of the top frame (320) is fixedly connected with the shock absorber seven (321), the front end of the shock absorber seven (321) is fixedly connected with the neck pillow (322).

8. The multi-functional ergonomic chair according to claim 7, wherein, The back plate assembly (3) further comprises: The auxiliary spring rod (323) is rotationally connected to the rear end outer side surface of the top frame (320), the other end of the auxiliary spring rod (323) is rotationally connected with the top outer side surface of the back plate frame (301); The shock absorber eight (324) is rotationally connected to the rear end inner side surface of the neck pillow (322), the other end of the shock absorber eight (324) is rotationally connected with the rear end inner side surface of the lateral back plate (316); Linkage rotating frame (325), rotationally connected to the rear end of the side back plate (316) and the side waist plate (306), and the opposite sides of the linkage rotating frame (325) are fixedly connected with shock absorber nine (326); Linkage arm two (327), rotationally connected to the bottom end of the back plate frame (301), and the other end of the linkage arm two (327) is rotationally connected with the other end of the slide rod (220).

9. The multi-functional ergonomic chair according to claim 1, wherein, Also includes: Air rod (4), fixedly connected to the bottom end of the bottom plate (1); Chassis (5), fixedly connected to the bottom end of the air rod (4), and the bottom end of the chassis (5) is rotationally connected with a plurality of universal wheels (6).

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