CN113229662A

CN113229662A - Office chair capable of adjusting backrest angle and massage force

Info

Publication number: CN113229662A
Application number: CN202110504730.5A
Authority: CN
Inventors: 江勤英; 陈勇
Original assignee: Hangzhou Nibo Information Technology Co ltd
Current assignee: Hangzhou Nibo Information Technology Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-08-10

Abstract

The invention relates to the technical field of massage machines and discloses an office chair capable of adjusting backrest angle and massage force. This office chair of adjustable back angle and massage dynamics, it rotates through outside drive arrangement drive threaded rod, thereby change the eccentric degree of screw thread piece and first cylindric lock, then first cylindric lock drive swinging arms wobbling angle changes, then the swinging arms passes through second spout and the stroke synchronous change of second cylindric lock drive guide arm reciprocating motion, then the reciprocating motion stroke of massager changes, the massager changes to the extrusion degree of cushion promptly, consequently, the massage dynamics that the user experienced also changes thereupon, thereby reached the effect of conveniently adjusting the massage dynamics.

Description

Office chair capable of adjusting backrest angle and massage force

Technical Field

The invention relates to the technical field of massage machines, in particular to an office chair capable of adjusting backrest angle and massage force.

Background

Massage is also called as tuina, which refers to the action of pressing or stretching the muscles under the skin by contacting the body to dredge the channels and collaterals, smooth the joints, promote the circulation of qi and blood, regulate the functions of the zang-fu organs, and enhance the disease resistance of the body, thereby achieving the purpose of curing the pain. Along with the development of science and technology, automatic massage device has got into people's life, many office chair now all have automatic massage function to the rest that people are better relaxs, but general office chair lacks the function of adjusting the back, therefore the back remains same angle throughout, and the position of sitting that different crowds liked is different with the back angle, and when having a rest in the noon, can't lie flat on the seat sleep, this has reduced the sleep quality undoubtedly, in addition, general office chair has massage function, but can't adjust the dynamics of massage, and the massage dynamics that different crowds are used to is also different, to sum up, this kind of office chair can not be fine satisfies people's and demand, and the practicality remains to be improved.

Aiming at the defects of the prior art, the invention provides the office chair capable of adjusting the backrest angle and the massage strength, which has the advantages of adjusting the backrest angle and the massage strength and solves the problem that the backrest angle and the massage strength cannot be adjusted in a common office chair.

Disclosure of Invention

Technical scheme (I)

In order to achieve the purpose of adjusting the angle of the backrest and the massage strength, the invention provides the following technical scheme: the utility model provides an office chair of adjustable back angle and massage dynamics, includes the seat support, the right-hand member of seat support rotates and is connected with the pivot, the upper end fixedly connected with seat back of pivot, the inner circle of pivot is provided with the ratchet, the axis body middle part of pivot is provided with the mounting disc, the central point of mounting disc puts to rotate and is connected with the round gear, the fixedly connected with connecting rod of axle center department of round gear, the sliding tray has been seted up on the surface of mounting disc, sliding connection has the rack on the channel of sliding tray, one side that the rack is close to the sliding tray terminal is provided with reset spring, the arc spout has been seted up on the surface of mounting disc, the lower extreme of arc spout is provided with the electro-magnet, sliding connection has the metal block on the channel of arc spout.

Preferably, the metal block is rotatably connected with one end, away from the circular gear, of the connecting rod, a clamping groove is formed in one end, away from the return spring, of the rack, and the rack is clamped with the ratchet through the clamping groove in the initial state.

Preferably, the seat back is fixedly connected with a mounting bracket in the seat back, and a driving disc is arranged on a frame body of the mounting bracket.

Preferably, the rack body of the mounting bracket is fixedly connected with a slide rail, the slide rail is perpendicular to the mounting bracket, the rack body of the mounting bracket is rotatably connected with a swing rod, and the swing rod and the slide rail are respectively positioned at two sides of the driving disk.

Preferably, a first sliding groove and a second sliding groove are respectively formed in the rod body of the swing rod, and the second sliding groove is formed in one end, close to the sliding rail, of the swing rod.

Preferably, a threaded rod is arranged on the surface of the driving disc, a threaded block is connected to the rod body of the threaded rod in a threaded manner, a first cylindrical pin is fixedly connected to the block body of the threaded block, and the first cylindrical pin is in sliding connection with the first sliding groove.

Preferably, the guide rod is connected to the track of the slide rail in a sliding manner, a second cylindrical pin is fixedly connected to the rod body of the guide rod, and the second cylindrical pin is connected with the second sliding groove in a sliding manner.

Preferably, a back cushion is arranged on the front face of the seat back, and a massager is fixedly connected to one end, close to the back cushion, of the guide rod.

(II) advantageous effects

Compared with the prior art, the invention provides an office chair capable of adjusting the angle of a backrest and the massage strength, which has the following beneficial effects:

1. this office chair of adjustable back angle and massage dynamics through making the electro-magnet circular telegram magnetism reinforcing and attracting the metal block below and sliding, thereby the metal block drive connecting rod synchronous movement drives circular gear anticlockwise rotation, circular gear drive rack compression reset spring, then the ratchet is kept away from to the rack, the draw-in groove no longer has the limiting displacement to the ratchet, but pivot free rotation this moment, promote the backrest this moment and can change its inclination, thereby reached the effect of conveniently adjusting the backrest angle.

2. This office seat of adjustable back angle and massage dynamics drives the threaded rod and the screw thread piece is synchronous rotates thereupon through the driving-disc, and the first cylindric lock of screw thread piece drive is reciprocal on first spout and is slided to drive the oscillating arm reciprocal swing through the first spout of extrusion, then the oscillating arm passes through second spout and second cylindric lock drive guide arm along slide rail synchronous motion, then the reciprocal extrusion cushion of guide arm drive massager, thereby massage the people that lies on the backrest.

3. This office chair of adjustable back angle and massage dynamics, it rotates through outside drive arrangement drive threaded rod, thereby change the eccentric degree of screw thread piece and first cylindric lock, then first cylindric lock drive swinging arms wobbling angle changes, then the swinging arms passes through second spout and the stroke synchronous change of second cylindric lock drive guide arm reciprocating motion, then the reciprocating motion stroke of massager changes, the massager changes to the extrusion degree of cushion promptly, consequently, the massage dynamics that the user experienced also changes thereupon, thereby reached the effect of conveniently adjusting the massage dynamics.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the spindle according to the present invention;

FIG. 3 is a schematic view of the internal structure of the seat back of the present invention;

FIG. 4 is a schematic view of the structure of area A in FIG. 2 according to the present invention;

FIG. 5 is a schematic view of the structure of the area B in FIG. 3 according to the present invention.

In the figure: 1. a chair seat; 2. a rotating shaft; 3. a seat back; 4. a ratchet; 5. mounting a disc; 6. a circular gear; 7. a connecting rod; 8. a sliding groove; 9. a rack; 10. a return spring; 11. an arc-shaped chute; 12. an electromagnet; 13. a metal block; 14. mounting a bracket; 15. a drive disc; 16. a slide rail; 17. a swing lever; 18. a first chute; 19. a second chute; 20. a threaded rod; 21. a thread block; 22. a first cylindrical pin; 23. a guide bar; 24. a second cylindrical pin; 25. a massager; 26. provided is a back cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an office chair capable of adjusting backrest angle and massage force comprises a chair seat 1, a rotating shaft 2 is rotatably connected to the right end of the chair seat 1, a chair backrest 3 is fixedly connected to the upper end of the rotating shaft 2, a ratchet 4 is arranged on the inner ring of the rotating shaft 2, a mounting plate 5 is arranged in the middle of the shaft body of the rotating shaft 2, a circular gear 6 is rotatably connected to the center of the mounting plate 5, a connecting rod 7 is fixedly connected to the axis of the circular gear 6, a sliding groove 8 is formed in the surface of the mounting plate 5, a rack 9 is slidably connected to the groove channel of the sliding groove 8, a return spring 10 is arranged on one side of the rack 9 close to the terminal end of the sliding groove 8, an arc-shaped sliding groove 11 is formed in the surface of the mounting plate 5, an electromagnet 12 is arranged at the lower end of the arc-shaped sliding groove 11, a metal block 13 is slidably connected to the groove channel of the arc-shaped sliding groove 11, and the metal block 13 is rotatably connected to one end of the connecting rod 7 far away from the circular gear 6, a clamping groove is formed in one end, far away from the return spring 10, of the rack 9, and the rack 9 is clamped with the ratchet 4 through the clamping groove in an initial state; a mounting bracket 14 is fixedly attached to the inside of the seat back 3.

A driving disc 15 is arranged on the frame body of the mounting bracket 14, a slide rail 16 is fixedly connected to the frame body of the mounting bracket 14, the slide rail 16 is perpendicular to the mounting bracket 14, a swing rod 17 is rotatably connected to the frame body of the mounting bracket 14, and the swing rod 17 and the slide rail 16 are respectively positioned at two sides of the driving disc 15; a first sliding groove 18 and a second sliding groove 19 are respectively formed in the rod body of the swinging rod 17, and the second sliding groove 19 is formed in one end, close to the sliding rail 16, of the swinging rod 17; a threaded rod 20 is arranged on the surface of the driving disc 15, a threaded block 21 is connected to the rod body of the threaded rod 20 in a threaded manner, a first cylindrical pin 22 is fixedly connected to the block body of the threaded block 21, and the first cylindrical pin 22 is in sliding connection with the first sliding groove 18; a guide rod 23 is connected to the track of the slide rail 16 in a sliding manner, a second cylindrical pin 24 is fixedly connected to the rod body of the guide rod 23, and the second cylindrical pin 24 is connected with the second chute 19 in a sliding manner; the front surface of the seat back 3 is provided with a cushion 26, and one end of the guide rod 23 close to the cushion 26 is fixedly connected with a massager 25.

The working process and principle are as follows: in an initial state, the rack 9 is meshed with the ratchet 4 through the clamping groove, the rack 9 has a limiting effect on the ratchet 4 at the moment, so that the rotating shaft 2 cannot rotate clockwise, the seat back 3 cannot topple downwards when a user lies on the seat for rest, when the user needs to adjust the angle of the seat back 3, the electromagnet 12 is electrified through the control center, the electromagnet 12 is enhanced in magnetism and attracts the metal block 13 to slide downwards along the arc-shaped sliding groove 11, the metal block 13 drives the connecting rod 7 to move synchronously, the connecting rod 7 drives the circular gear 6 fixedly connected with the connecting rod 7 to rotate anticlockwise, the circular gear 6 drives the rack 9 meshed with the circular gear to slide along the sliding groove 8 in a direction close to the return spring 10, the return spring 10 is compressed, the rack 9 is far away from the ratchet 4, the clamping groove does not have a limiting effect on the ratchet 4, the rotating shaft 2 can rotate freely at the moment, and the angle of the seat back 3 can be adjusted by pushing the seat back 3, when the adjustment is completed, the power supply is turned off, the electromagnet 12 is not electrified and the magnetism is weakened, each device is reset under the driving of the reset spring 10, the initial state is returned, the seat back 3 does not move downwards, and the user can lie on the seat to rest.

When the device is used for massaging, the external driving device drives the driving disc 15 to rotate, the threaded rod 20 and the threaded block 21 synchronously rotate along with the driving disc, the threaded block 21 drives the first cylindrical pin 22 to synchronously move, the first cylindrical pin 22 reciprocally slides on the first sliding groove 18, so that the swinging rod 17 is driven to reciprocally swing by extruding the first sliding groove 18, the swinging rod 17 drives the second cylindrical pin 24 slidably connected with the swinging rod 17 to reciprocally move along the sliding rail 16 through the second sliding groove 19, the second cylindrical pin 24 drives the guide rod 23 fixedly connected with the second cylindrical pin 24 to synchronously move along the sliding rail 16, and the guide rod 23 drives the massager 25 to reciprocally extrude the cushion 26, so that a person lying on the seat back 3 is massaged; when different massage force levels need to be adjusted, the external driving device drives the threaded rod 20 to rotate through the control center, so that the driving threaded block 21 moves along the threaded rod 20, the eccentricity degree of the first cylindrical pin 22 relative to the driving disk 15 changes, and therefore the angle of the first cylindrical pin 22 driving the swinging rod 17 to swing changes (for example, when the first cylindrical pin 22 moves away from the axis of the driving disk 15 along with the threaded block 21, the angle of the first cylindrical pin 22 driving the swinging rod 17 to swing increases), and when the swinging angle of the swinging rod 17 changes, the stroke of the swinging rod 17 driving the guide rod 23 to reciprocate through the second sliding chute 19 and the second cylindrical pin 24 changes synchronously, so the reciprocating stroke of the massager 25 changes, namely, the squeezing degree of the massager 25 on the cushion 26 changes, and therefore the massage force level sensed by a user also changes.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an office chair of adjustable back angle and massage dynamics, includes seat support (1), its characterized in that: the right end of the chair seat (1) is rotationally connected with a rotating shaft (2), the upper end of the rotating shaft (2) is fixedly connected with a chair backrest (3), the inner ring of the rotating shaft (2) is provided with a ratchet (4), the middle part of the shaft body of the rotating shaft (2) is provided with a mounting disc (5), a circular gear (6) is rotatably connected at the central position of the mounting disc (5), a connecting rod (7) is fixedly connected at the axis of the circular gear (6), the surface of the mounting disc (5) is provided with a sliding groove (8), a channel of the sliding groove (8) is connected with a rack (9) in a sliding way, a return spring (10) is arranged on one side of the rack (9) close to the terminal of the sliding groove (8), an arc-shaped sliding chute (11) is arranged on the surface of the mounting disc (5), an electromagnet (12) is arranged at the lower end of the arc-shaped sliding chute (11), and a metal block (13) is connected to the channel of the arc-shaped sliding chute (11) in a sliding manner.

2. The office chair capable of adjusting backrest angle and massage force according to claim 1, wherein: the metal block (13) is rotatably connected with one end, far away from the circular gear (6), of the connecting rod (7), a clamping groove is formed in one end, far away from the reset spring (10), of the rack (9), and the rack (9) is connected with the ratchet (4) in a clamped mode through the clamping groove in the initial state.

3. The office chair capable of adjusting backrest angle and massage force according to claim 1, wherein: the seat back is characterized in that a mounting bracket (14) is fixedly connected to the inside of the seat back (3), and a driving disc (15) is arranged on a frame body of the mounting bracket (14).

4. An office chair with adjustable backrest angle and massage strength as claimed in claim 3, wherein: fixedly connected with slide rail (16) on the support body of installing support (14), slide rail (16) are perpendicular with installing support (14), it is connected with swinging arms (17) to rotate on the support body of installing support (14), swinging arms (17) are located the both sides of driving-disc (15) respectively with slide rail (16).

5. The office chair capable of adjusting backrest angle and massage force according to claim 4, wherein: a first sliding groove (18) and a second sliding groove (19) are formed in the rod body of the swing rod (17) respectively, and the second sliding groove (19) is formed in one end, close to the sliding rail (16), of the swing rod (17).

6. An office chair with adjustable backrest angle and massage strength as claimed in claim 3, wherein: the surface of the driving disc (15) is provided with a threaded rod (20), a rod body of the threaded rod (20) is in threaded connection with a threaded block (21), a block body of the threaded block (21) is fixedly connected with a first cylindrical pin (22), and the first cylindrical pin (22) is in sliding connection with a first sliding groove (18).

7. The office chair capable of adjusting backrest angle and massage force according to claim 4, wherein: the guide rod (23) is connected to the track of the sliding rail (16) in a sliding mode, a second cylindrical pin (24) is fixedly connected to the rod body of the guide rod (23), and the second cylindrical pin (24) is connected with the second sliding groove (19) in a sliding mode.

8. The office chair capable of adjusting backrest angle and massage force according to claim 1, wherein: a back cushion (26) is arranged on the front surface of the seat back (3), and a massager (25) is fixedly connected to one end, close to the back cushion (26), of the guide rod (23).