A fully automatic massage office chair

Abstract

The present invention discloses a fully automatic massage office chair, belonging to the field of automatic massage, including chair legs, a seat, armrests, a headrest, massage components, etc. After a person sits on the device and starts it, the massage components perform soothing massages on different positions of the legs. At the same time, a neck massage component is provided at the neck, which can also relax the neck. The present invention is small in size and can be used as an ordinary chair, taking up no space in the office and allowing for massage at any time. It has the characteristics of simple and ingenious structure, uniform and sufficient massage, and adjustable functions.

Description

Technical Field

[0001] The present invention relates to the field of automatic massage, and particularly to a fully automatic massage office chair. Background Art

[0002] In recent years, with the development of society and the continuous improvement of people's living standards, people have paid more and more attention to their own health. In today's increasingly fast-paced life, most people are buried in a large amount of work every day, and it is inevitable to have muscle fatigue and muscle soreness. At present, all kinds of massage chairs on the market are for home use and occupy a large area. For example, the invention with the publication number CN110522596B discloses an intelligent massage chair, which includes two left and right support seats. Each of the two left and right support seats is provided with two front and rear support columns. Each of the inner sides of the two support columns is provided with a wheel groove, and a fixed shaft is arranged in the wheel groove. The fixed shaft is connected to two drive wheels through a telescopic bracket. A motor is arranged inside the right support seat, and a large gear support frame is arranged at the other end of the motor. A large gear is arranged inside the large gear support frame. The large gear support frame is arranged inside the control box. A three-jaw fixing frame is arranged at the top of the control box. A total of six balls are arranged on the left and right of the three-jaw fixing frame. A gear telescopic rod is arranged inside the three-jaw fixing frame. A row of teeth is arranged at the lower end of the gear telescopic rod, and a track is arranged on each of the left and right sides. The beneficial effect is to reduce the floor area. However, the disadvantage is that this invention can only massage the head. For people whose work mainly involves walking, it is particularly important to relax the leg muscles and be able to massage in the company in time, which can also reflect the humanistic care of the company. Moreover, as an office chair, its large volume is also a problem. Therefore, the present invention proposes a fully automatic massage office chair. Summary of the Invention

[0003] The technical solution adopted by the present invention for the above technical problems is as follows: A fully automatic massage office chair includes chair legs and a seat. Rotating buckles are rotatably installed on both sides of the seat, and the rotating buckles are fixedly connected to the armrests. A backrest is rotatably installed on the seat, and a plurality of massage neck protectors are rotatably installed on the backrest. A headrest is fixedly installed on the backrest. A support plate is fixedly installed on the seat, and a rotating drive rod is rotatably installed on the support plate. The rotating drive rod is fixedly connected to a massage component. On the massage component, there are side brackets. A splint shaft is rotatably installed on the side brackets. A splint II is fixedly connected to the splint shaft. The splint II rotates to press and fit the legs. On the massage component, there is a middle bracket. The middle bracket is hollow and a middle sliding block is slidably installed therein. There are two through holes on the middle sliding block, and a displacement shaft and a rotating shaft are respectively rotatably installed therein. Both ends of the displacement shaft are fixedly installed on the side limit blocks. A gear ring is slidably installed on the displacement shaft. A plurality of gear ring keys are fixedly connected to the gear ring. The gear ring is rotatably installed on a shaft connecting rod. A torsion spring connecting ring is rotatably installed on the displacement shaft. One end face of the torsion spring connecting ring is fixedly connected to a torsion spring III. The other end face of the torsion spring III is fixedly connected to a roller bracket. The roller bracket is rotatably connected to a massage roller. A roller sliding frame is slidably connected below one side of the shaft connecting rod. A bottom sliding bar is slidably connected below one side of the shaft connecting rod. The displacement shaft and the rotating shaft are rotatably installed on the shaft connecting rod. The roller sliding frame is slidably installed on the bottom bracket. A torsion spring support frame is fixedly installed on the bottom bracket. A torsion spring IV is installed on the opposite surfaces of the torsion spring support frame and the bottom bracket. A torsion block is rotatably installed on the torsion spring IV. The bottom sliding bar is slidably connected to the roller sliding frame. The bottom sliding bar and the roller sliding frame are connected by a spring III. When the roller sliding frame slides on the bottom bracket, the roller sliding frame and the bottom sliding bar drive the shaft connecting rods they are respectively slidably connected to. The shaft connecting rods drive the gear ring. The gear ring drives the torsion spring connecting ring through the gear ring keys, so that the roller bracket is closed and the massage roller presses the legs. A plurality of middle limit blocks are fixedly installed on the displacement shaft. The middle limit blocks are slidably installed on the roller displacement blocks. The roller displacement blocks are slidably installed on the bottom sliding frame. The sliding of the middle limit blocks causes the roller bracket to open and close, and the massage roller massages the legs.

[0004] Further, a plurality of massage neck protectors for clamping the neck are installed on the backrest. There are several massage modules for massaging the neck on the massage neck protectors. The massage component is divided into two sides, side A and side B, and side A and side B are symmetrical about the middle bracket.

[0005] Further, the surface of the splint II is an arc surface, which fits the contour of the leg. One end face of the splint shaft is connected to a splint motor to make the splint II rotate. On the other side of the splint shaft, two 180° split splint shaft pins are fixedly installed. Two first rotating block pins that are perpendicularly split 180° to the splint shaft pins are fixedly connected to the first rotating block. The splint shaft passes through the first rotating block and is rotatably connected. The splint shaft pin and the first rotating block pin are meshed when rotating. A torsion spring II is rotatably installed below the first rotating block. The other side of the torsion spring I is rotatably installed with a second rotating block.

[0006] Further, support bars, sliding brackets on both sides, and Spring I are fixedly connected to the brackets on both sides. Spring I is fixedly connected to the sliding block. The support bar is slidably connected to the sliding block. The sliding brackets on both sides are fixedly connected to the brackets on both sides. A translation bar is fixedly connected to the roller sliding frame. The translation bar is slidably connected to the sliding brackets on both sides. A fixing block is fixedly connected to the translation bar. The fixing block is slidably connected to the sliding brackets on both sides. A Spring II is fixedly connected to the fixing block. Spring II is fixedly connected to the compression block. The middle of the compression block is hollow and slidably connected to the translation bar. One side of the compression block is a 1 / 4 circular arc.

[0007] Further, the outer surface of the massage roller is arc-shaped, which fits the leg muscles for massage. The torsion springs III connected to the roller brackets on both sides have opposite winding directions to the torsion springs II, so as to unify the power direction when the connecting rings of the torsion springs on both sides have opposite winding directions. Among them, the slot holes on the torsion spring connecting ring are engaged with the gear keys on the gear ring, so that the power of the driving gear is transmitted to the massage roller to press the calf muscles.

[0008] Further, the driving gear is fixedly installed on the rotating shaft. One end of the rotating shaft is connected to the clamping motor. One side of the clamping motor is slidably installed on the limiting plate. The limiting plate is fixedly connected to the threaded displacement block.

[0009] Further, there are slot holes inside one end of the brackets on both sides. A long screw motor is fixedly installed in the slot holes. The long screw motor is fixedly connected to the long screw. The long screw is threadedly connected to the threaded displacement block. The long screw displaces the threaded displacement block so that the massage roller massages different parts of the calf.

[0010] Further, the limiting blocks on both sides are slidably installed in the threaded displacement block. Short screws are threadedly connected to the limiting blocks on both sides. There is a motor drive on the short screws, so that the limiting blocks on both sides are displaced in the threaded displacement block, that is, the displacement shaft and the middle limiting block are displaced, so that the roller brackets are continuously opened and closed to make the massage roller massage the calf part.

[0011] The beneficial effects of the present invention compared with the prior art are as follows: (1) The present invention is small in size and can be used as a normal office chair without wasting office space; (2) The present invention is designed for people who walk a lot, massages and relaxes the leg muscles of the massager, and the massage is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 is a schematic diagram of the structure of the leg massage component;

[0014] Figure 3 is a schematic diagram of the structure of the leg massage component;

[0015] Figure 4 isFigure 3 Partial enlarged schematic diagram at position Ⅰ;

[0016] Figure 5 Schematic diagram of the partial structure of the leg massage component;

[0017] Figure 6 Schematic diagram of the partial structure of the leg massage component;

[0018] Figure 7 is Figure 6 Partial enlarged schematic diagram at position Ⅱ;

[0019] In the figure: 2 - massage component; 101 - headrest; 102 - neck massage protector; 103 - press module; 104 - backrest; 105 - armrest; 106 - rotating buckle; 107 - seat stool; 108 - chair leg; 109 - support plate; 110 - rotating drive rod; 201 - intermediate support; 202 - splint Ⅰ; 203 - splint shaft; 204 - splint Ⅱ; 206 - bottom sliding frame; 207 - clamping motor; 208 - limit plate; 209 - threaded displacement block; 210 - short screw; 211 - long screw; 212 - massage roller; 213 - roller support; 214 - splint motor; 215 - roller displacement block; 216 - long screw motor; 217 - first rotating block; 218 - torsion spring Ⅰ; 219 - second rotating block; 220 - support bar; 221 - spring Ⅰ; 222 - sliding block; 223 - side sliding brackets; 224 - translation bar; 225 - fixed block; 226 - spring Ⅱ; 227 - compression block; 228 - side brackets; 229 - middle limit block; 230 - roller sliding frame; 231 - bottom bracket; 232 - torsion spring Ⅱ; 233 - torsion spring Ⅲ; 234 - torsion spring connection ring; 235 - gear ring; 236 - gear ring key; 237 - shaft connecting rod; 238 - displacement shaft; 239 - rotating shaft; 240 - driving gear; 241 - torsion block; 242 - torsion spring support; 243 - torsion spring Ⅳ; 244 - spring Ⅲ; 245 - middle sliding block; 246 - side limit blocks; 247 - bottom sliding bar; 248 - splint shaft pin; 249 - first rotating block pin. Detailed implementation manners

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] Embodiment: As Figure 1As shown, a seat 107 is fixedly installed on the chair leg 108. Rotating buckles 106 are rotatably installed on both sides of the seat 107. An armrest 105 for supporting the hand is fixedly installed on the rotating buckle 106. A backrest 104 for the back to lean on is rotatably installed on the seat 107. A plurality of massage neck protectors 102 for supporting and clamping the neck are rotatably installed on the backrest 104. The shape of the massage neck protector 102 is an arc shape that fits the neck. There are several massage modules 103 for massage on the massage neck protector 102. A headrest 101 for the head to lean on is fixedly installed on the backrest 104. A plurality of support plates 109 are fixedly installed on the seat 107. A rotating drive rod 110 is rotatably installed on the support plate 109. A massage component 2 for massaging the leg is fixedly installed on the rotating drive rod 110. When a person sits on this device and activates the massage function, the massage neck protector 102 clamps the neck and the massage module 103 performs massage. At the same time, the rotating drive rod 110 adjusts the angle between the massage component 2 and the support plate 109, and then the massage component 2 performs leg massage.

[0023] As Figures 2 - 5As shown, the A side and the B side of the massage component 2 are symmetrical about the middle bracket 201. A short screw rod 210 and two side brackets 228 are fixedly connected to the rotary drive rod 110. After the massage component 2 is started, the splint shafts 203 rotatably installed on the two side brackets 228 are driven by the fixedly connected splint motor 214 to start rotating. A plurality of splints II 204 with arc surfaces for pressing the legs are fixedly installed on the splint shafts 203. The splints I 202 on the other side of the splint shafts 203 also move in the same way. Two splint shaft pins 248 are also fixedly installed on the splint shafts 203. A first rotating block 217 is rotatably installed on the splint shafts 203. A first rotating block pin 249 for engaging with the splint shaft pin 248 is fixedly installed on the first rotating block 217. The splint shaft pin 248 at one end of the splint shaft 203 and the first rotating block pin 249 on the first rotating block 217 are rotationally engaged, so that the first rotating block 217 starts to rotate. A torsion spring I 218 is fixedly connected to the first rotating block 217, and the torsion spring I 218 is fixedly connected to the second rotating block 219. When the first rotating block 217 rotates, the power transmission will cause the second rotating block 219 to rotate under the connection of the torsion spring I 218. At the same time, the second rotating block 219 only applies force to rotate in one direction. When the second rotating block 219 rotates, it pushes the sliding block 222. The upper end surface of the sliding block 222 is a slope to conform to the second rotating block 219. The sliding block 222 is slidably connected to the support bar 220. Two springs I 221 are fixedly connected to the other side of the sliding block 222. The support bar 220 and the springs I 221 are both fixedly connected to the two side brackets 228. When the second rotating block 219 pushes the sliding block 222, the sliding block 222 overcomes the elastic force of the second rotating block 219 and starts to move. During the movement, the sliding block 222 will compress the compression block 227. The compressed surface of the compression block 227 is a 1 / 4 circular arc to better conform to the sliding block 222. The compression block 227 is slidably installed in the translation bar 224 in a hollow manner. Two springs II 226 for supporting the compression block 227 are fixedly installed on the compression block 227. The springs II 226 are fixedly installed on the fixed block 225, and the fixed block 225 is fixedly installed on the translation bar 224. At the same time, the fixed block 225 and the translation bar 224 are slidably installed on the two side sliding brackets 223. The two side sliding brackets 223 are "mouth"-shaped parts. The translation bar 224 slides inside the two side sliding brackets 223. After the splint motor 214 drives the roller sliding frame 230, the splint shaft 203 drives the splint shaft pin 248, the splint shaft pin 248 drives the first rotating block pin 249, the first rotating block pin 249 drives the first rotating block 217, the first rotating block 217 drives the second rotating block 219, and the second rotating block 219 drives the sliding block 222, so that the sliding block 222 compresses the compression block 227 and then crosses over the compression block 227 to reach the other side of the compression block 227. Since the movement track of the second rotating block 219 is circular, after the second rotating block 219 causes the sliding block 222 to cross over the compression block 227, the second rotating block 219 disconnects the power transmission with the sliding block 222.The sliding block 222 returns to its original position under the elastic force of the second rotating block 219. At this time, the sliding block 222 also drives the compression block 227, thereby driving the sliding brackets 223 on both sides to slide within the translation bar 224.

[0024] Such as Figure 2 , Figure 3 , Figure 6 , Figure 7As shown, the translation bar 224 is fixedly connected to the roller sliding frame 230. The roller sliding frame 230 is slidably connected to the bottom bracket 231. A torsion spring support 242 is fixedly connected to the bottom bracket 231. A torsion spring Ⅳ 243 is fixedly installed on the opposite surface of the torsion spring support 242 and the bottom bracket 231. A torsion block 241 is rotatably installed on the torsion spring Ⅳ 243. A bottom sliding bar 247 is slidably installed on the roller sliding frame 230. A spring Ⅲ 244 is fixedly installed on one side of the bottom sliding bar 247. The other end of the spring Ⅲ 244 is fixedly connected to the roller sliding frame 230. Both ends of the bottom bracket 231 are respectively fixedly connected to the middle bracket 201 and the side brackets 228. When the translation bar 224 slides, it drives the roller sliding frame 230 to slide on the bottom bracket 231. When the roller sliding frame 230 slides to one end, the roller sliding frame 230 impacts one end of the torsion block 241. The torsion block 241 rotates around the torsion spring Ⅳ 243 as the center. The other end of the torsion block 241 impacts the bottom sliding bar 247, causing the bottom sliding bar 247 to slide along the roller sliding frame 230 against the elastic force of the spring Ⅲ 244. A shaft connecting rod 237 is slidably installed on both the bottom sliding bar 247 and the roller sliding frame 230. A gear ring 235 is rotatably installed on the shaft connecting rod 237. A plurality of gear ring keys 236 are fixedly connected to the gear ring 235. There are two holes on the shaft connecting rod 237 for rotatably installing a displacement shaft 238 and a rotating shaft 239. The hole close to the roller sliding frame 230 installs the rotating shaft 239, and vice versa for the displacement shaft 238. On either side A or B, the upper clamping plate shaft 203, the roller bracket 213, the clamping plate motor 214, the first rotating block 217, the torsion spring Ⅰ 218, the second rotating block 219, the support bar 220, the spring Ⅰ 221, the sliding block 222, the side sliding brackets 223, the translation bar 224, the fixed block 225, the spring Ⅱ 226, the compression block 227, the roller sliding frame 230, the bottom bracket 231, the bottom bracket 231, the torsion spring Ⅱ 232, the torsion spring Ⅲ 233, the torsion spring connection ring 234, the gear ring 235, the gear ring keys 236, the shaft connecting rod 237, the driving gear 240, the torsion block 241, the torsion spring support 242, the torsion spring Ⅳ 243, the spring Ⅲ 244, the bottom sliding bar 247, the clamping plate shaft pin 248, and the first rotating block pin 249 are all symmetrically installed with respect to the bottom sliding frame 206. A roller displacement block 215 is slidably installed on the bottom sliding frame 206. There are several through holes in the roller displacement block 215. A middle limiting block 229 for limiting is slidably installed in the slots. The displacement shaft 238 is fixedly installed on the middle limiting block 229. The torsion spring connection ring 234 is rotatably installed on the displacement shaft 238. The torsion spring connection ring 234 is circular. There are multiple slots on the side close to the shaft connecting rod 237 that are engaged with the gear ring keys 236. The other side is fixedly connected to the torsion spring Ⅲ 233. The torsion spring Ⅲ 233 has the opposite helix direction to the torsion spring Ⅱ 232. The other side of the torsion spring Ⅲ 233 is fixedly connected to the roller bracket 213. The roller bracket 213 is rotatably connected to a massage roller 212 for massaging the leg. The outer shape of the massage roller 212 is an arc surface to better fit the leg contour.A plurality of driving gears 240 are fixedly installed on the rotating shaft 239. One end of the rotating shaft 239 is fixedly connected to a clamping motor 207. A limiting plate 208 for limiting is slidably installed on one side of the clamping motor 207. The limiting plate 208 is fixedly installed on a threaded displacement block 209. When the translation bar 224 drives the roller sliding frame 230 to slide on the bottom bracket 231, one end of the roller sliding frame 230 impacts the torsion block 241, causing the torsion block 241 to rotate around the torsion spring Ⅳ 243. The other end of the torsion block 241 impacts the bottom sliding bar 247, causing the bottom sliding bar 247 to slide on the rotating shaft 239. At this time, the bottom sliding bar 247 and the shaft connecting rods 237 slidably connected to the roller sliding frame 230 approach each other, causing the gear rings 235 rotatably installed on the respective shaft connecting rods 237 to mesh with the corresponding driving gears 240. At the same time, a plurality of gear ring keys 236 fixedly connected to the gear rings 235 are also fitted into a plurality of slot holes of the torsion spring connecting ring 234. When the clamping motor 207 is started, it will drive the rotating shaft 239 to drive the driving gear 240 to rotate, thereby causing the gear ring keys 236 on the driving gear ring 235 to drive the torsion spring connecting ring 234 to rotate, causing the torsion spring Ⅲ 233 to start storing energy, driving the bottom bracket 231 to press the massage roller 212 against the leg contour for better massage.,

[0025] As Figure 1 、 Figure 2 、 Figure 7 shown, the middle bracket 201 is hollow and slidably installed with a middle sliding block 245. The middle sliding block 245 also contains two through-hole grooves for rotatably installing the rotating shaft 239 and the rotating shaft 239. On one side of the rotating shaft 239 close to the threaded displacement block 209, two-sided limiting blocks 246 for limiting are fixedly installed. The two-sided limiting blocks 246 are slidably installed on the through-hole grooves inside the threaded displacement block 209. The two-sided limiting blocks 246 are threadedly connected to a short screw rod 210 with a drive. When the short screw rod 210 rotates forward and backward periodically, it will drive the two-sided limiting blocks 246 to displace periodically, thereby causing the rotating shaft 239 and the shaft connecting rods 237, torsion spring connecting ring 234, and roller bracket 213 rotatably installed on the rotating shaft 239 to displace periodically, that is, causing the roller bracket 213 to close periodically, driving the massage roller 212 to massage the leg. The threaded displacement block 209 is threadedly connected to a long screw rod 211. One end of the long screw rod 211 is rotatably installed on the two-sided brackets 228, and one end is fixedly installed on a long screw rod motor 216. The long screw rod motor 216 is fixedly installed in the slot hole of the two-sided brackets 228 biased towards the bracket plate 109. When the long screw rod motor 216 is started, the long screw rod 211 starts to rotate, causing the threaded displacement block 209 to displace along the long screw rod 211, and finally causing the displacement shaft 238 to displace, so that the massage roller 212 massages different parts of the leg.

[0026] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes starting from the above concepts without creative labor, and all such changes fall within the protection scope of the present invention.

Claims

1. A fully automatic massage office chair, including chair legs (108), rotary buckles (106) are rotatably installed on both sides of the seat stool (107), the rotary buckles (106) are fixedly connected to the armrests (105), a backrest (104) is rotatably installed on the seat stool (107), a plurality of massage neck protectors (102) are rotatably installed on the backrest (104), a headrest (101) is fixedly installed on the backrest (104), a support plate (109) is fixedly installed on the seat stool (107), a rotary drive rod (110) is rotatably installed on the support plate (109), and the rotary drive rod (110) is fixedly connected to the massage component (2), and it is characterized in that: On the described massage component (2), there are two side brackets (228) provided. The splint shaft (203) is rotatably installed on the two side brackets (228). The splint II (204) is fixedly connected to the splint shaft (203). When the splint II (204) rotates, it presses and fits the leg. On the described massage component (2), there is a middle bracket (201) provided. The middle bracket (201) is hollow and slidably installs a middle sliding block (245). There are two through-hole grooves on the middle sliding block (245). A displacement shaft (238) and a rotating shaft (239) are rotatably installed in the two through-hole grooves. Both ends of the displacement shaft (238) are fixedly installed on two side limit blocks (246). A gear ring (235) is slidably installed on the displacement shaft (238). A plurality of gear ring keys (236) are fixedly connected to the gear ring (235). The gear ring (235) is rotatably installed on a shaft connecting rod (237). A torsion spring connecting ring (234) is rotatably installed on the displacement shaft (238). On one side of the torsion spring connecting ring (234), a torsion spring III (233) is fixedly connected. The torsion spring III (233) is fixedly connected to a roller bracket (213). The roller bracket (213) is rotatably connected to a massage roller (212). One side shaft connecting rod (237) is slidably connected to a roller sliding frame (230). The other side shaft connecting rod (237) is slidably connected to a bottom sliding strip (247). The displacement shaft (238) and the rotating shaft (239) are rotatably installed on the shaft connecting rod (237). The roller sliding frame (230) is slidably installed on a bottom bracket (231). A torsion spring support (242) is fixedly installed on the bottom bracket (231). A torsion spring IV (243) is installed on the opposite surfaces of the torsion spring support (242) and the bottom bracket (231). A torsion block (241) is rotatably installed on the torsion spring IV (243). The bottom sliding strip (247) is slidably connected to the roller sliding frame (230). The bottom sliding strip (247) and the roller sliding frame (230) are connected by a spring III (244). When the roller sliding frame (230) slides on the bottom bracket (231), the roller sliding frame (230) and the bottom sliding strip (247) drive the shaft connecting rods (237) they are respectively slidably connected to. The shaft connecting rods (237) drive the gear ring (235). The gear ring (235) drives the torsion spring connecting ring (234) through the gear ring keys (236), so that the roller bracket (213) is closed to press the massage roller (212) against the leg. A plurality of middle limit blocks (229) are fixedly installed on the displacement shaft (238). The middle limit blocks (229) are slidably installed on a roller displacement block (215). The roller displacement block (215) is slidably installed on a bottom sliding frame (206). The up and down sliding of the middle limit blocks (229) makes the roller bracket (213) open and close to massage the leg part with the massage roller (212); Support bars (220), two side sliding brackets (223), and spring I (221) are fixedly connected to the two side brackets (228). Spring I (221) is fixedly connected to a sliding block (222). The sliding block (222) is slidably connected to the support bar (220). The two side sliding brackets (223) are fixedly connected to the two side brackets (228). A translation bar (224) is fixedly connected to the roller sliding frame (230). The translation bar (224) is slidably connected to the two side sliding brackets (223). A fixed block (225) is fixedly connected to the translation bar (224). The fixed block (225) is slidably connected to the two side sliding brackets (223). A spring II (226) is fixedly connected to the fixed block (225). Spring II (226) is fixedly connected to a compression block (227). The middle of the compression block (227) is hollow. The compression block (227) is slidably connected to the translation bar (224). One side of the compression block (227) is a 1 / 4 circular arc shape.

2. The office chair according to claim 1, characterized in that: A plurality of massage neck protectors (102) for clamping the neck are installed on the backrest (104). There are several pressing modules (103) for massaging the neck on the massage neck protector (102). The massage component (2) is divided into side A and side B. Side A and side B are symmetric about the middle bracket (201).

3. The office chair according to claim 1, characterized in that: The surface of the clamping plate II (204) is an arc surface. One end face of the clamping plate shaft (203) is connected to a clamping plate motor (214) to make the clamping plate II (204) rotate. Two clamping plate shaft pins (248) that are 180° oppositely opened are fixedly installed on the other clamping plate shaft (203). Two first rotating block pins (249) that are perpendicularly and 180° oppositely opened are fixedly connected to the first rotating block (217). The clamping plate shaft (203) passes through the first rotating block (217) and the two are rotatably connected. The clamping plate shaft pin (248) and the first rotating block pin (249) are rotationally engaged. A torsion spring II (232) is rotatably installed on the first rotating block (217). The other side of the torsion spring I (218) is rotatably installed with a second rotating block (219).

4. The office chair according to claim 1, characterized in that: The outer surface of the massage roller (212) is an arc surface. The torsion spring III (233) connected to the two roller brackets (213) has a rotation direction opposite to that of the torsion spring II (232), so as to unify the power direction when the rotation directions of the two torsion spring connection rings (234) are opposite. Among them, there are slot holes on the torsion spring connection ring (234), which are engaged with the gear ring keys (236) on the gear ring (235), so that the power of the driving gear (240) is transmitted to the massage roller (212) to press the calf muscles.

5. The office chair according to claim 4, characterized in that: The driving gear (240) is fixedly installed on the rotating shaft (239). One end of the rotating shaft (239) is connected to a clamping motor (207). The clamping motor (207) is slidably installed on one side of a limit plate (208). The limit plate (208) is fixedly connected to a threaded displacement block (209).

6. The office chair according to claim 1, characterized in that: One end of the two side brackets (228) has a slot inside, and a long screw motor (216) is fixedly installed in the slot. The long screw motor (216) is fixedly connected to a long screw (211), and the long screw (211) is threadedly connected to a threaded displacement block (209). The long screw (211) displaces the threaded displacement block (209) so that the massage roller (212) massages different parts of the calf.

7. The office chair according to claim 1, wherein: The two side limit blocks (246) are slidably installed in the threaded displacement block (209). A short screw (210) is threadedly connected to the two side limit blocks (246), and the short screw (210) is driven by a motor, so that the two side limit blocks (246) displace in the threaded displacement block (209), which displaces the displacement shaft (238) and the middle limit block (229).

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