CN212698254U

CN212698254U - Low temperature resistant office chair

Info

Publication number: CN212698254U
Application number: CN202021866358.XU
Authority: CN
Inventors: 戴国良; 李学军
Original assignee: Zhejiang Yihui Intelligent Furniture Co ltd
Current assignee: Zhejiang Yihui Intelligent Furniture Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-03-16
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a low temperature resistant office chair, including the stabilizer blade, the mounting bracket has set gradually on the top of stabilizer blade, the seat, all be provided with the handrail bracket that the other end extends to the seat side on the both sides wall of mounting bracket, be provided with the lift balladeur train on handrail bracket's the top, the smooth hole that goes up and down has been seted up downwards in proper order on the top surface of lift balladeur train, the mounting groove, it is provided with the lift slide bar that the lift handrail was installed at the top to slide in the smooth hole that goes up and down, be provided with in the mounting groove and be used for promoting the lift slide bar to slide from top. The key point of the technical scheme is that the height of the lifting handrail is convenient to adjust. The universal chair wheel is installed to the bottom of stabilizer blade, and the wheel body that universal chair wheel and ground carried out the friction is made by silica gel, and the wheel body of universal chair wheel has excellent wear-resisting, low temperature resistant performance.

Description

Low temperature resistant office chair

Technical Field

The utility model relates to an office chair technical field, in particular to low temperature resistant office chair.

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.

The prior chinese patent with the publication number of CN22287216U discloses an office mesh chair, which comprises a chair surface, a backrest, support legs, universal wheels and armrests, wherein the chair surface is fixedly installed at the tops of the support legs, the backrest is installed at the rear side of the chair surface, the universal wheels are installed at the bottoms of the support legs, and the armrests are installed at the two sides of the chair surface.

The above prior art solutions have the following drawbacks: although the office net chair can be used for users to sit, the height of the armrests of the office net chair is fixed, and the office net chair cannot be well adapted to the use requirements of some users.

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 and provide a low temperature resistant office chair that exists among the prior art, its handrail through setting up height can be adjusted has solved the problem that can't satisfy some user's user demands among the prior art.

(II) technical scheme

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a low temperature resistant office chair, includes the stabilizer blade, mounting bracket, seat have set gradually on the top of stabilizer blade, all be provided with the handrail bracket that the other end extends to the seat side on the both sides wall of mounting bracket, be provided with the lift balladeur train on the top of handrail bracket, the smooth hole of going up and down, mounting groove have been seted up downwards in proper order on the top surface of lift balladeur train, it is provided with the lift slide bar that the lift handrail was installed at the top to slide in the smooth hole of going up and down, be provided with in the mounting groove and be used for promoting the lift slide bar and slide from top to bottom in the smooth.

The utility model discloses further set up to: run through on the lateral wall of lift balladeur train and set up the commentaries on classics hole with the mounting groove intercommunication, control mechanism sets up the cam in the mounting groove including rotating, just is used for driving cam pivoted pivot with changeing hole normal running fit, the one end that the lift slide bar is close to the cam is laminated on the wheel face of cam.

The utility model discloses further set up to: the groove wall of the mounting groove close to the lifting sliding hole is provided with a guide sliding hole between the lifting sliding hole and the mounting groove, one end of the lifting sliding rod close to the cam is provided with a stress disc in sliding fit with the guide sliding hole, and the lifting sliding rod is sleeved with a disc pushing spring used for pushing the stress disc to abut against the cam wheel surface.

The utility model discloses further set up to: the wheel face of the cam is circumferentially provided with a guide sliding groove, the end face, facing the cam, of the stress disc is provided with a wheel carrier, and the wheel carrier is rotatably provided with a guide roller in rolling fit with the bottom wall of the guide sliding groove.

The utility model discloses further set up to: the wall of the mounting groove is provided with a first spline hole communicated with the rotating shaft, the cam is provided with a second spline hole aligned with the first spline hole, and the middle part of the rotating shaft is provided with a spline shaft in plug-in fit with the first spline hole and the second spline hole.

The utility model discloses further set up to: a plurality of reinforcing frames are arranged between the lifting slide rod and the lifting handrail.

(III) advantageous effects

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does: when the user need adjust the lift handrail height, the user holds the draw shaft dish with the finger, then the pulling draw shaft dish removes to keeping away from the seat direction, then the pivot, the integral key shaft is along removing away from the seat direction and removing, the terminal surface of keeping away from the seat of integral key shaft offsets with the cell wall of mounting groove until, the integral key shaft is taken out first splined hole this moment, and get into completely in the second splined hole, then the user rotates the pivot, drive the cam through the cooperation of integral key shaft with second splined hole and rotate, because guide roller all the time with the diapire roll fit of direction spout under the spring action of pushing away the dish spring, guide roller can remove along the profile of cam promptly, then the lift slide bar can reciprocate in the lift slide hole, and then drive the lift handrail and reciprocate, until the lift handrail is adjusted to target height.

Drawings

FIG. 1 is a schematic structural diagram of a first view angle of a low temperature-resistant office chair in an embodiment;

FIG. 2 is a schematic structural diagram of a second perspective of the low temperature-resistant office chair in the embodiment;

FIG. 3 is a schematic view of a half-section of the lift carriage of FIG. 1 from a first perspective;

FIG. 4 is a schematic view in half section of the lifting carriage of FIG. 1 at a second viewing angle;

fig. 5 is a schematic structural view of each component in the lifting carriage in the embodiment.

Reference numerals: 1. a support leg; 2. a universal chair wheel; 3. a mounting frame; 4. a chair surface; 5. a backrest support; 6. a backrest; 7. an armrest bracket; 8. a lifting carriage; 9. a lifting slide hole; 10. a guide slide hole; 11. mounting grooves; 12. hole turning; 13. a first splined bore; 14. lifting the sliding rod; 15. lifting the armrest; 16. a reinforcing frame; 17. a force-bearing plate; 18. a pusher spring; 19. a wheel carrier; 20. a guide roller; 21. a control mechanism; 22. a cam; 23. a rotating shaft; 24. a guide chute; 25. a second spline hole; 26. a spline shaft; 27. and (5) pulling the shaft disc.

Detailed Description

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

As shown in fig. 1 and 2, a low temperature resistant office chair comprises a supporting leg 1, five universal chair wheels 2 are mounted at the bottom of the supporting leg 1, and the specific structure of the universal chair wheels 2 is shown in chinese patent with an authorization publication No. CN209966815U, wherein the wheel body of the universal chair wheels 2, which rubs against the ground, is made of silica gel, and the wheel body of the universal chair wheels 2 has excellent wear resistance and low temperature resistance. An installation frame 3 is fixedly installed on the top of the support leg 1, and a chair seat 4 is fixedly installed on the top surface of the installation frame 3. The top surface of the mounting frame 3 is fixedly connected with a backrest support 5, the backrest support 5 is positioned at the rear side of the seat surface 4, and one end of the backrest support 5, which is far away from the mounting frame 3, is fixedly provided with a backrest 6.

As shown in fig. 3 and 4, two side walls of the mounting frame 3 are fixedly connected with armrest brackets 7, the two armrest brackets 7 are symmetrical to each other, the armrest brackets 7 are L-shaped, and one end of each armrest bracket 7, which is far away from the mounting frame 3, extends to two sides of the seat surface 4. The top of the handrail bracket 7 is fixedly connected with a lifting sliding frame 8, the top surface of the lifting sliding frame 8 is provided with a lifting sliding hole 9, a guide sliding hole 10 and a mounting groove 11 in sequence from top to bottom, the section of the lifting sliding hole 9 is circular, the section of the guide sliding hole 10 is circular, the guide sliding hole 10 is coaxial with the lifting sliding hole 9, and the section of the mounting groove 11 is rectangular. The side wall of the lifting sliding frame 8 is provided with a rotary hole 12 in a penetrating way, the rotary hole 12 is communicated with the mounting groove 11, and the section of the rotary hole 12 is circular. A first spline hole 13 is formed in the wall of the mounting groove 11, the first spline hole 13 is communicated with the rotary hole 12, and the first spline hole 13 is coaxial with the rotary hole 12.

As shown in fig. 1 and 3, a lifting slide bar 14 is slidably disposed in the lifting slide hole 9, and the lifting slide bar 14 is cylindrical. The top of the lifting slide bar 14 is fixedly connected with a lifting handrail 15, two reinforcing frames 16 are fixedly connected between the bottom surfaces of the lifting handrail 15 on the side wall of the lifting slide bar 14, the two reinforcing frames 16 are symmetrical, and the reinforcing frames 16 are used for increasing the connecting strength between the lifting slide bar 14 and the lifting handrail 15.

As shown in fig. 3, a force-bearing plate 17 is fixedly connected to the bottom of the lifting slide bar 14, the force-bearing plate 17 is disc-shaped, the force-bearing plate 17 is coaxial with the lifting slide bar 14, and the force-bearing plate 17 is in sliding fit with the guide slide hole 10. The lifting slide bar 14 is sleeved with a push disc spring 18, one end of the push disc spring 18 is abutted against the hole wall of the guide slide hole 10, the other end of the push disc spring 18 is abutted against the stress disc 17, and the push disc spring 18 is used for pushing the stress disc 17 and the lifting slide bar 14 to move downwards. The bottom surface of the stress disc 17 is fixedly provided with a wheel carrier 19, and the wheel carrier 19 is rotatably provided with a guide roller 20.

As shown in fig. 3 and 4, a control mechanism 21 is disposed in the mounting groove 11, the control mechanism 21 is used for pushing the lifting slide rod 14 to move up and down in the lifting slide hole 9 to drive the lifting handrail 15 to move up and down, and the control mechanism 21 includes a cam 22 and a rotating shaft 23.

As shown in fig. 3, 4 and 5, the cam 22 is rotatably disposed in the mounting groove 11, a guide sliding groove 24 is formed on a wheel surface of the cam 22, and a cross section of the guide sliding groove 24 is rectangular. The guide roller 20 is embedded into the guide sliding chute 24, the guide roller 20 is in rolling fit with the bottom wall of the guide sliding chute 24, and the push disc spring 18 pushes the stressed disc 17 and the lifting slide bar 14 to move towards the direction close to the cam 22, so that the cam 22 and the guide roller 20 are not easy to move transversely relative to each other, and the stability of the lifting slide bar 14 in the up-and-down moving process is improved. The side wall of the cam 22 is provided with a second spline hole 25 in a penetrating manner, the second spline hole 25 is aligned with the first spline hole 13, and the rotating hole 12, the first spline hole 13 and the second spline hole 25 are coaxial.

As shown in fig. 3, 4 and 5, the rotating shaft 23 is rotatably installed in the rotating hole 12, a spline shaft 26 is fixedly connected to the middle of the rotating shaft 23, and the spline shaft 26 is coaxial with the rotating shaft 23. The spline shaft 26 is inserted and matched with the first spline hole 13 and the second spline hole 25. When the spline shaft 26 is located in the second spline hole 25, the user rotates the rotating shaft 23, and the spline shaft 26 cooperates with the second spline hole 25 to drive the cam 22 to rotate. When spline shaft 26 is partially inserted into first spline hole 13, spline shaft 26 is restricted from rotating by first spline hole 13, and rotating shaft 23 coaxially connected to spline shaft 26 is also restricted from rotating. The end of the rotating shaft 23 extending out and rotating is fixedly connected with a pulling shaft disc 27, the pulling shaft disc 27 is disc-shaped, and the pulling shaft disc 27 is used for providing a force application point for a user to pull and push the rotating shaft 23.

The use process of this low temperature resistant office chair does:

when the user needs to adjust the height of the lifting handrail 15, the user holds the pull shaft disc 27 with fingers, then the pulling shaft plate 27 is pulled to move towards the direction far away from the seat surface 4, the rotating shaft 23 and the spline shaft 26 move towards the direction far away from the seat surface 4 along with the pulling shaft plate, until the end surface of the spline shaft 26 far away from the seat surface 4 is abutted against the groove wall of the mounting groove 11, at the moment, the spline shaft 26 is pulled out of the first spline hole 13 and completely enters the second spline hole 25, then the user rotates the rotating shaft 23, the spline shaft 26 is matched with the second spline hole 25 to drive the cam 22 to rotate, since the guide roller 20 is always in rolling engagement with the bottom wall of the guide chute 24 under the elastic force of the pusher spring 18, i.e., the guide roller 20 moves along the contour of the cam 22, the elevation slide bar 14 moves up and down in the elevation slide hole 9, and then the lifting handrail 15 is driven to move up and down until the lifting handrail 15 is adjusted to the target height.

After the lifting armrest 15 is adjusted to a target height, a user pushes the pull shaft plate 27, the rotating shaft 23, and the spline shaft 26 to move toward the seat surface 4, if the first spline hole 13 and the second spline hole 25 are not aligned, the spline shaft 26 is difficult to insert into the first spline hole 13, at this time, the pull shaft plate 27, the rotating shaft 23, and the spline shaft 26 are finely rotated so that the first spline hole 13 and the second spline hole 25 are aligned, and then the pull shaft plate 27, the rotating shaft 23, and the spline shaft 26 are pushed to move toward the seat surface 4 until the spline shaft 26 is inserted into the first spline hole 13, the first spline hole 13 restricts the spline shaft 26 from rotating, the rotating shaft 23 coaxially connected with the spline shaft 26 is also restricted from rotating, the cam 22 is also restricted from rotating, and the lifting armrest 15 can be maintained at a certain height.

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. A low temperature resistant office chair, includes stabilizer blade (1), its characterized in that: mounting bracket (3), seat (4) have set gradually on the top of stabilizer blade (1), all be provided with handrail bracket (7) that the other end extends to seat (4) side on the both sides wall of mounting bracket (3), be provided with lift balladeur train (8) on the top of handrail bracket (7), lift slide opening (9), mounting groove (11) have been seted up in proper order downwards on the top surface of lift balladeur train (8), it is provided with lift slide bar (14) that lift handrail (15) were installed at the top to slide in lift slide opening (9), be provided with in mounting groove (11) and be used for promoting lift slide bar (14) in lift slide opening (9) up-and-down shift and drive lift handrail (15) and carry out control mechanism (21) that reciprocate.

2. A low temperature resistant office chair as claimed in claim 1, wherein: run through on the lateral wall of lift balladeur train (8) and set up commentaries on classics hole (12) with mounting groove (11) intercommunication, control mechanism (21) set up cam (22) in mounting groove (11) including rotating, with changeing hole (12) normal running fit and be used for driving cam (22) pivoted pivot (23), the one end laminating that lift slide bar (14) are close to cam (22) is on the wheel face of cam (22).

3. A low temperature resistant office chair as claimed in claim 2, wherein: the device is characterized in that a guide sliding hole (10) between the lifting sliding hole (9) and the mounting groove (11) is formed in the groove wall of the mounting groove (11) close to the lifting sliding hole (9), a stress disc (17) in sliding fit with the guide sliding hole (10) is arranged at one end, close to the cam (22), of the lifting sliding rod (14), and a disc pushing spring (18) used for pushing the stress disc (17) to abut against the wheel surface of the cam (22) is sleeved on the lifting sliding rod (14).

4. A low temperature resistant office chair as claimed in claim 3, wherein: a guide sliding groove (24) is formed in the circumferential direction of the wheel surface of the cam (22), a wheel carrier (19) is arranged on the end face, facing the cam (22), of the stress disc (17), and a guide roller (20) in rolling fit with the bottom wall of the guide sliding groove (24) is arranged on the wheel carrier (19) in a rotating mode.

5. A low temperature resistant office chair as claimed in claim 2, wherein: the wall of the mounting groove (11) is provided with a first spline hole (13) communicated with the rotating shaft (23), the cam (22) is provided with a second spline hole (25) aligned with the first spline hole (13), and the middle of the rotating shaft (23) is provided with a spline shaft (26) in plug-in fit with the first spline hole (13) and the second spline hole (25).

6. A low temperature resistant office chair as claimed in claim 1, wherein: a plurality of reinforcing frames (16) are arranged between the lifting slide rod (14) and the lifting handrail (15).