CN213849651U

CN213849651U - Office chair with adjustable backrest inclination angle

Info

Publication number: CN213849651U
Application number: CN202022865984.3U
Authority: CN
Inventors: 黄爱民
Original assignee: Anji Fuheng Furniture Co ltd
Current assignee: Anji Fuheng Furniture Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-03
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses an office chair with adjustable back inclination, including the seat, set up in the back of seat rear side, the seat is provided with two mounting brackets on the lateral wall of back, the trompil has all been seted up on two relative terminal surfaces of mounting bracket, one of them mounting bracket is kept away from all set up on the terminal surface of another mounting bracket with the location perforation of trompil intercommunication, the bottom of back is provided with the link that inserts between two mounting brackets, all be provided with on the terminal surface of link towards two mounting brackets with the pivot of trompil normal running fit, the regulation slide opening has been seted up on being close to the terminal surface of the pivot of location perforation, it is provided with the regulation slide bar to slide in the regulation slide opening, the one end that the regulation slide bar stretches out the regulation slide opening is provided with and fixes a position the positioning gear shaping with restriction back pivoted location perforation grafting cooperation. The technical scheme is characterized in that the problem that the practicability is poor due to the fact that the inclination angle of the backrest is fixed in the prior art is solved by arranging the backrest with the adjustable inclination angle.

Description

Office chair with adjustable backrest inclination angle

Technical Field

The utility model relates to an office chair technical field, in particular to office chair with adjustable back inclination.

Background

The office chair refers to various chairs which are equipped for working conveniently in daily life and social activities, the office chair in a broad sense comprises all chairs used in offices, such as a executive chair, a middle class chair, a guest chair, a clerk chair, a conference chair, a visitor chair, a training chair and the like, and the office chair in a narrow sense refers to a backrest chair on which a person sits when working on a desktop in a sitting posture.

A prior chinese patent with publication number CN209269054U discloses an office chair, which comprises a load-bearing base, a chair, a backrest, and armrests, wherein the chair is fixedly mounted on the top surface of the load-bearing base, the upper end surface of the chair is a chair seat, the backrest is mounted on the rear side of the chair seat, and the armrests are mounted on the left and right sides of the chair seat. When in use, a user sits on the chair surface and leans against the backrest with the back.

The above prior art solutions have the following drawbacks: the difference exists in different users 'position of sitting, and the back is comparatively straight when some users end to sit, and the back can the hypsokinesis when some users end to sit, and the angle between this office chair's chair and the back can not change, can't adapt to different users' user demand, and the practicality is not good.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved problem of the utility model is to the above-mentioned not enough that exists among the prior art and provide an office chair with adjustable back inclination, it has solved among the prior art and has responded that the back inclination is fixed and lead to the not good problem of practicality through setting up inclination adjustable back.

(II) technical scheme

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides an office chair with adjustable back inclination, includes the seat, sets up in the back of seat rear side, be provided with two mounting brackets on the lateral wall of seat orientation back, two the trompil has all been seted up on the relative terminal surface of mounting bracket, one of them the locating tooth hole with the trompil intercommunication all is seted up on the terminal surface that another mounting bracket was kept away from to the mounting bracket, the bottom of back is provided with the link that inserts between two mounting brackets, the link all be provided with on the terminal surface of two mounting brackets with the trompil normal running fit pivot, be close to the locating tooth hole seted up on the terminal surface of pivot and adjusted the slide opening, it is provided with the regulation slide bar to slide in the regulation slide opening, the one end that the regulation slide bar stretches out the regulation slide opening is provided with and fixes a position the tooth hole grafting cooperation in order to restrict back pivoted location gear shaping.

The utility model discloses further set up to: a plurality of rotation limiting sliding grooves are formed in the hole wall of the adjusting sliding hole, and a plurality of rotation limiting sliding blocks in sliding fit with the rotation limiting sliding grooves are arranged on the outer side wall of the adjusting sliding rod.

The utility model discloses further set up to: and a spring is arranged on the bottom wall of the adjusting slide hole, the other end of the spring is connected with the adjusting slide rod, and the spring is used for pulling the adjusting slide rod and the positioning gear shaping to reset.

The utility model discloses further set up to: two grooves are symmetrically formed in the top surface of the chair surface, and supporting airbags for supporting two hip flaps of a human body are embedded in each groove.

The utility model discloses further set up to: a plurality of first mounting grooves, a first air pipe groove used for communicating the adjacent first mounting grooves are formed in the top surface of the chair surface, each first mounting groove is internally embedded with a cladding air bag, and a first air pipe matched with the first air pipe groove in an embedded mode is arranged between the adjacent cladding air bags.

The utility model discloses further set up to: a plurality of second mounting grooves, a second air pipe groove used for communicating adjacent second mounting grooves are formed in the surface of the backrest, each second mounting groove is internally embedded with a backrest airbag, and a second air pipe matched with the second air pipe groove in an embedded mode is arranged between the adjacent backrest airbags.

(III) advantageous effects

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. the user draws the positioning gear shaping out of the positioning tooth hole, then rotates the positioning gear shaping, the rotating shaft, the connecting frame and the backrest rotate along with the positioning gear shaping until the inclination angle of the backrest is adjusted to be close to a proper angle, and when the positioning gear shaping and the positioning tooth hole are aligned again, the positioning gear shaping is inserted into the positioning tooth hole, at the moment, the backrest is limited to rotate, namely, the inclination angle of the backrest is fixed, so that the use requirements of different users can be better met;

2. when a user sits on the office chair, the two hip valves of the human body are stressed on the two supporting air bags, and air in the supporting air bags flows freely in the air bags along with the action of external force, so that the two hip valves can feel comfortable automatic adjusting function, the best effect of fitting the two hip valves of the human body is achieved, the working fatigue is effectively relieved, and the supporting air bags can massage the two hip valves of the human body to promote blood circulation;

3. when a user sits on the office chair, the wrapping air bag wraps and supports the periphery of the buttocks and the outer sides of the thighs of the human body, air in the wrapping air bag flows freely in the air bag along with the action of external force, so that the periphery of the buttocks and the inner sides of the thighs of the human body can feel comfortable automatic adjusting function, working fatigue is effectively relieved, the wrapping air bag can massage the periphery of the buttocks and the inner sides of the thighs of the human body to promote blood circulation, and the wrapping air bag can position the buttocks of the human body to reduce the left-right shaking amplitude of the human body;

4. when the user sits on this office chair, human back leans on the back gasbag, gas in the back gasbag is along with the effect of external force free flow in the gasbag, ensure that human back can experience comfortable automatically regulated function, alleviate working fatigue effectively, the back gasbag can also massage human back, promote blood circulation, and human back supports and leans on the back gasbag, human back and the area of contact of back have been reduced, good heat dissipation, human back is difficult for producing stifle hotness.

Drawings

FIG. 1 is a schematic structural view of an office chair with an adjustable backrest inclination angle according to an embodiment;

FIG. 2 is a schematic partial half-sectional view of an example of an office chair with adjustable back rest inclination;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a partial exploded view of an office chair with adjustable back rest inclination according to an embodiment.

Reference numerals: 1. a chair surface; 2. a backrest; 3. a mounting frame; 4. hole turning; 5. positioning a tooth hole; 6. a connecting frame; 7. a rotating shaft; 8. adjusting the sliding hole; 9. adjusting the sliding rod; 10. positioning gear shaping; 11. a rotation limiting chute; 12. a rotation limiting slide block; 13. a spring; 14. a groove; 15. a support airbag; 16. a first mounting groove; 17. a first gas pipe groove; 18. coating the air bag; 19. a first vent pipe; 20. a second mounting groove; 21. a second air duct groove; 22. a backrest airbag; 23. a second vent pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, an office chair with an adjustable backrest inclination angle comprises a chair surface 1 and a backrest 2 installed at the rear side of the chair surface 1.

Seat 1 is connected with two mounting brackets 3 towards the integral type on the lateral wall of back 2, and two mounting brackets 3 mutual symmetry just are close to the both sides setting of seat 1. All seted up circular shape on the relative terminal surface of two mounting brackets 3 and changeed hole 4, seted up location perforation 5 on one of them mounting bracket 3 keeps away from the terminal surface of another mounting bracket 3, location perforation 5 with change 4 intercommunications in hole, the cross-section of location perforation 5 is the gear form.

As shown in fig. 3 and 4, a connecting frame 6 is fixedly connected to the bottom of the backrest 2, the connecting frame 6 is inserted between the two mounting frames 3, a rotating shaft 7 is fixedly connected to the end surface of the connecting frame 6 facing the two mounting frames 3, and the two rotating shafts 7 are respectively inserted into the two rotating holes 4 and form a rotating fit. An adjusting slide hole 8 is formed in the end face, away from the other rotating shaft 7, of the rotating shaft 7 close to the positioning tooth hole 5, and the adjusting slide hole 8 is a circular hole. An adjusting slide rod 9 is arranged in the adjusting slide hole 8 in a sliding mode, and the adjusting slide rod 9 is cylindrical. One end of the adjusting slide rod 9 extending out of the adjusting slide hole 8 is provided with a positioning gear shaper 10, the section of the positioning gear shaper 10 is in a gear shape, and the positioning gear shaper 10 is in inserted fit with the positioning gear hole 5.

As shown in fig. 2 and 3, two rotation limiting sliding grooves 11 are symmetrically formed in the wall of the adjusting sliding hole 8, and the cross section of each rotation limiting sliding groove 11 is rectangular. Two rotation limiting sliding blocks 12 are fixedly connected to the outer side wall of the adjusting slide bar 9, the two rotation limiting sliding blocks 12 are symmetrical to each other, the cross section of each rotation limiting sliding block 12 is rectangular, the rotation limiting sliding blocks 12 are in sliding fit with the rotation limiting sliding grooves 11, when a user pulls the adjusting slide bar 9 and the positioning gear shaping 10, the adjusting slide bar 9 and the adjusting slide hole 8 are limited to rotate relatively, the positioning gear shaping 10 rotates, and the rotating shaft 7, the connecting frame 6 and the backrest 2 rotate along with the rotating shaft.

The bottom wall of the adjusting slide hole 8 is fixedly connected with a spring 13, the other end of the spring 13 is connected with the adjusting slide rod 9, and the spring 13 is used for pulling the adjusting slide rod 9 and the positioning gear shaper 10 to reset. The user need exert certain power just can take out location tooth shaping 10 location tooth hole 5, is favorable to promoting the stability of grafting cooperation between location tooth shaping 10 and the location tooth hole 5.

The use process of the office chair with the adjustable backrest inclination angle comprises the following steps: the user takes out location pinion 10 and fixes a position perforation 5, then rotates location pinion 10, then pivot 7, link 6, back 2 rotate thereupon, adjust to near suitable angle until the inclination of back 2, and when location pinion 10 realigned with location perforation 5, insert location perforation 5 with location pinion 10, back 2 is restricted to rotate this moment, and the inclination of back 2 is fixed promptly, so can adapt to different users' user demand better.

As shown in fig. 1 and 4, two grooves 14 are symmetrically formed on the top surface of the seat 1, the two grooves 14 are located in the middle of the upper surface of the seat 1, and the grooves 14 are oval. A supporting air bag 15 is embedded in each groove 14, the supporting air bag 15 and the seat surface 1 are glued, one half of the supporting air bag 15 is embedded in the groove 14, and the other half of the supporting air bag protrudes out of the upper surface of the seat surface 1. The holding airbag 15 is in an ellipsoidal shape, and the holding airbag 15 is used for supporting two hip flaps of a human body. The air bag is an article which is formed by filling compressed air into a flexible rubber capsule and realizes the elastic action by utilizing the compressibility of the air, and the air bag is provided with an inflation opening for inflation and a deflation opening for deflation, so that a user can conveniently adjust and control the amount of the air in the air bag. When a user sits on the office chair, the two hip valves of the human body exert force on the two supporting air bags 15, gas in the supporting air bags 15 flows freely in the air bags along with the action of external force, the two hip valves can be guaranteed to feel comfortable automatic adjustment functions, the best effect of the two hip valves of the human body is achieved, working fatigue is effectively relieved, and the supporting air bags 15 can massage the two hip valves of the human body to promote blood circulation.

As shown in fig. 1 and 4, five first mounting grooves 16 are formed in the top surface of the seat surface 1, the first mounting grooves 16 are oval, and a connecting line of the five first mounting grooves 16 is arc-shaped and surrounds the two support airbag 15. Four first air pipe grooves 17 are formed in the top surface of the seat surface 1, and the first air pipe grooves 17 are used for communicating the adjacent first mounting grooves 16. Each first mounting groove 16 is embedded with a coating air bag 18, half of the coating air bag 18 is embedded into the first mounting groove 16, the other half of the coating air bag 18 protrudes out of the upper surface of the seat surface 1, the coating air bag 18 is connected with the seat surface 1 in a gluing mode, the connecting line of the five coating air bags 18 is in an arc shape, and the coating air bags 18 are used for coating the periphery of the buttocks and the outer sides of thighs of a person. A first vent pipe 19 is fixedly connected between the adjacent coated air bags 18, the first vent pipe 19 is used for communicating the inner spaces of the five coated air bags 18, and the first vent pipe 19 is in scarf joint with the first vent pipe groove 17. When a user sits on the office chair, the cladding air bag 18 is supported at the periphery of the buttocks and the outer side of the thighs of the human body in a cladding mode, air in the cladding air bag 18 flows freely in the air bag along with the action of external force, the fact that the periphery of the buttocks and the inner side of the thighs of the human body can feel comfortable automatic adjusting functions is guaranteed, work fatigue is effectively relieved, the cladding air bag 18 can also massage the periphery of the buttocks and the inner side of the thighs of the human body, blood circulation is promoted, the surrounding cladding air bag 18 can position the buttocks of the human body, and the left-right shaking amplitude of the human body is reduced.

As shown in fig. 1 and 4, six second mounting grooves 20 are formed on the surface of the backrest 2, the second mounting grooves 20 are hemispherical, and the six second mounting grooves 20 are divided into two rows. Five second air pipe grooves 21 are formed in the top surface of the backrest 2, and the second air pipe grooves 21 are used for communicating the adjacent second mounting grooves 20. Each second mounting groove 20 is embedded with a backrest airbag 22, the backrest airbags 22 are connected with the backrest 2 in a gluing mode, and the six backrest airbags 22 are divided into two rows and arranged side by side. And a second vent pipe 23 is fixedly connected between the adjacent backrest air bags 22, the second vent pipe 23 is used for communicating the inner spaces of the six backrest air bags 22, and the second vent pipe 23 is in scarf joint with the second air pipe groove 21. When the user sits on this office chair, human back leans on back gasbag 22, gas in the back gasbag 22 is along with the effect of external force free flow in the gasbag, ensure that human back can experience comfortable automatically regulated function, alleviate working fatigue effectively, back gasbag 22 can also massage human back, promote blood circulation, and human back supports and leans on back gasbag 22, human back and back 2's area of contact has been reduced, good heat dissipation, human back is difficult for producing the stuffy sense of sensation.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an office chair with adjustable back inclination, includes seat (1), sets up in back (2) of seat (1) rear side, its characterized in that: seat (1) is provided with two mounting bracket (3) on the lateral wall towards back (2), two swivel hole (4) have all been seted up on the relative terminal surface of mounting bracket (3), one of them on mounting bracket (3) keep away from on the terminal surface of another mounting bracket (3) all set up with location perforation (5) of swivel hole (4) intercommunication, the bottom of back (2) is provided with link (6) between inserting two mounting bracket (3), link (6) all are provided with on the terminal surface towards two mounting bracket (3) with swivel hole (4) normal running fit's pivot (7), are close to location perforation (5) seted up on the terminal surface of pivot (7) and adjust slide opening (8), it is provided with regulation slide bar (9) to slide in regulation slide opening (8), the one end that regulation slide bar (9) stretch out regulation slide opening (8) is provided with location perforation (5) grafting cooperation in order to restrict back (2) pivoted location gear shaping (10) .

2. An office chair with adjustable backrest tilt angle as claimed in claim 1, wherein: a plurality of rotation limiting sliding grooves (11) are formed in the wall of the adjusting sliding hole (8), and a plurality of rotation limiting sliding blocks (12) in sliding fit with the rotation limiting sliding grooves (11) are arranged on the outer side wall of the adjusting sliding rod (9).

3. An office chair with adjustable backrest tilt angle as claimed in claim 2, wherein: and a spring (13) with the other end connected with the adjusting slide rod (9) and used for pulling the adjusting slide rod (9) and the positioning gear shaping (10) to reset is arranged on the bottom wall of the adjusting slide hole (8).

4. An office chair with adjustable backrest tilt angle as claimed in claim 1, wherein: two grooves (14) are symmetrically formed in the top surface of the chair surface (1), and supporting airbags (15) for supporting two hip flaps of a human body are embedded in each groove (14).

5. An office chair with adjustable backrest tilt angle as claimed in claim 1, wherein: a plurality of first mounting grooves (16) and first air pipe grooves (17) used for communicating the adjacent first mounting grooves (16) are formed in the top surface of the chair surface (1), each first mounting groove (16) is internally embedded with a coating air bag (18), and a first air pipe (19) in scarf joint with the first air pipe grooves (17) is arranged between the adjacent coating air bags (18).

6. An office chair with adjustable backrest tilt angle as claimed in claim 1, wherein: a plurality of second mounting grooves (20), second trachea grooves (21) for communicating adjacent second mounting grooves (20) are formed in the surface of the backrest (2), each second trachea groove (21) is embedded into the second mounting groove (20) and is provided with a backrest airbag (22), and a second vent pipe (23) which is embedded into the second trachea grooves (21) and is matched with the second trachea grooves (21) is arranged between the adjacent backrest airbags (22).