CN212698248U - High ventilative office chair - Google Patents

Abstract

The utility model discloses a high ventilative office chair, including the base that has a plurality of supports, the jack has all been seted up on the top surface of every support, the connecting hole has all been seted up on the pore wall of every jack, all be provided with universal wheel mechanism on the every support, universal wheel mechanism includes the mounting bracket, set up in the universal wheel of mounting bracket bottom, the mounting groove has been seted up on the bottom surface of mounting bracket, a plurality of holes of sliding have been seted up on the lateral wall of mounting bracket, all slide in every hole of sliding and be provided with the connecting block that is used for inserting the connecting hole, be provided with in the mounting groove and be used for driving the connecting block and slide in the hole of sliding and then. The technical scheme is that the high-breathability office chair solves the problem that in the prior art, the pulley is inconvenient to detach and replace through the universal wheel mechanism which is convenient to detach. The triangular armrests are provided with armrest vent holes and armrest vent holes, the backrest is provided with backrest vent holes, and the high-permeability office chair has better permeability.

Description

High ventilative office chair

Technical Field

The utility model relates to an office chair technical field, in particular to high ventilative 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 CN205321828U discloses an office chair, which comprises a cushion, armrests, a backrest, a support, a six-claw support and pulleys, wherein the armrests are symmetrically arranged at two sides of the cushion, the support is arranged between the backrest and the cushion, the support is used for connecting the backrest and the cushion, and the pulleys are arranged at the bottom of the six-claw support.

The above prior art solutions have the following drawbacks: the pulley of this office chair links to each other through the screw usually between with six claw supports, when dismantling and change the pulley, need dismantle the gyro wheel from six claw supports with the help of extracting tool such as screwdriver, and it is comparatively inconvenient to dismantle the change.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved problem of the utility model is to provide a high ventilative office chair to the above-mentioned not enough that exists among the prior art, it has solved among the prior art problem that the pulley is dismantled and is changed inconveniently through setting up convenient to detach's universal wheel mechanism.

(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 high ventilative office chair, is including the base that has a plurality of supports, every the jack has all been seted up on the top surface of support, every a plurality of connecting holes have all been seted up on the pore wall of jack, every all be provided with universal wheel mechanism on the support, universal wheel mechanism includes with jack grafting complex mounting bracket, set up in the universal wheel of mounting bracket bottom, the mounting groove has been seted up on the bottom surface of mounting bracket, set up a plurality of holes of sliding that communicate with the mounting groove on the lateral wall of mounting bracket, every all slide in the hole of sliding and be provided with the connecting block that is used for inserting the connecting hole, be provided with in the mounting groove and be used for driving the connecting block and slide in the hole of sliding and then the.

The utility model discloses further set up to: every the connecting block all is provided with first articulated frame near the terminal surface of mounting groove, first articulated frame has seted up first articulated groove on deviating from the terminal surface of connecting block, be provided with first articulated shaft in the first articulated groove, control block mechanism including set up in mounting groove center department and top surface be used for with the push away axle that mounting groove tank bottom offseted, set up in a plurality of second articulated frame and a plurality of connecting rod on pushing away the epaxial lateral wall, second articulated frame has seted up second articulated groove on deviating from the terminal surface of push away axle, be provided with the second articulated shaft in the second articulated groove, every connecting rod homogeneous end is articulated through first articulated shaft and first articulated frame, and the other end is articulated through second articulated shaft and second articulated frame, the articulated department that is higher than connecting rod and second articulated frame in vertical direction of being in of connecting rod and first articulated frame.

The utility model discloses further set up to: the bottom surface of the mounting frame is provided with a rotation limiting groove communicated with the mounting groove, the bottom of the push shaft is provided with a wheel mounting frame, the bottom surface of the wheel mounting frame is used for mounting the universal wheel, and a rotation limiting strip in sliding fit with the rotation limiting groove is arranged on the side wall of the wheel mounting frame.

The utility model discloses further set up to: the limiting rotation device is characterized in that a clamping groove is formed in the side wall of the limiting rotation strip, which deviates from the wheel mounting frame, a spring is arranged in the clamping groove, one end, far away from the bottom wall of the clamping groove, of the spring is connected with a clamping block, an upper clamping hole and a lower clamping hole, which are communicated with the limiting rotation groove and distributed up and down, are formed in the outer side wall of the mounting frame, the upper clamping hole is matched with the clamping block in a clamping mode, the connecting block protrudes out of an orifice of a sliding hole, and the connecting block retracts into the sliding hole when the lower clamping hole.

The utility model discloses further set up to: the utility model discloses a seat, including base, handrail, triangle handrail, handrail vent hole, handrail air vent hole intercommunication are seted up on the top surface of triangle handrail.

The utility model discloses further set up to: the side wall of the seat cushion is provided with a connecting frame, one end of the connecting frame, which is far away from the seat cushion, is provided with a backrest, and the backrest is provided with backrest air holes in a penetrating manner towards the side wall of the triangular armrests.

(III) advantageous effects

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

1. when the triangular armrest is used, the buttocks of a user sits on the cushion, the arms of the user are placed on the triangular armrests, the armrest vent holes are formed in the middle parts of the two triangular armrests, the circulation of peripheral air and air above the cushion is improved, and the armrest vent holes are formed in the top surfaces of the two triangular armrests, so that on one hand, the contact area between the triangular armrests and the arms is reduced, on the other hand, the air in the armrest vent holes can flow upwards through the armrest vent holes, the air permeability of the triangular armrests is improved, and the heat dissipation performance of the triangular armrests is improved; the back of a user is attached to the backrest, and the backrest is provided with the backrest air holes, so that the circulation of peripheral air and the front side area of the backrest is increased, the air permeability of the backrest is increased, the heat dissipation performance of the backrest is improved, and the high-permeability office chair has better air permeability;

2. when the high-permeability office chair is disassembled, a user lifts the high-permeability office chair or raises the high-permeability office chair, then presses the fixture block, the fixture block in clamping fit with the upper clamping hole is pressed into the clamping groove, the spring is compressed in the process, then the universal wheel, the wheel mounting frame and the push shaft move downwards under the action of gravity until the clamping groove is aligned with the lower clamping hole, and then the fixture block is pushed into the lower clamping hole under the reset action of the spring; meanwhile, the second hinge frame moves downwards, the connecting block is driven by the connecting rod to move towards the direction close to the mounting groove until the connecting block retracts into the sliding hole, and the mounting frame is pulled out of the jack at the moment;

3. during installation, a user lifts the high-permeability office chair or raises the high-permeability office chair, then inserts the mounting frame into the insertion hole until the top surface of the mounting frame is flush with the top surface of the support, and the four sliding holes are aligned with the four connecting holes, then presses the fixture block, the fixture block in clamping fit with the lower clamping hole is pressed into the clamping groove, in the process, the spring is compressed, then the universal wheel, the wheel mounting frame and the pushing shaft are pushed by hands to move upwards, the second hinge frame moves upwards, and then the connecting block is pushed by the connecting rod to move in the direction away from the mounting groove until the connecting block is inserted into the connecting hole; meanwhile, the top surface of the push shaft is abutted to the bottom wall of the mounting groove, the clamping groove is aligned with the upper clamping hole, the clamping block is pushed into the upper clamping hole under the reset action of the spring, the connecting block keeps a state of being inserted into the connecting hole, and the support is connected with the universal wheel mechanism at the moment, so that the replacement is convenient.

Drawings

FIG. 1 is a schematic structural view of a high-permeability office chair in an embodiment;

FIG. 2 is a schematic structural view of the universal wheel mechanism in the embodiment;

FIG. 3 is a sectional structural view of a carriage and a gimbal mechanism in the embodiment;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 3;

fig. 6 is a schematic structural view of the components in the mounting frame in the embodiment.

Reference numerals: 1. a base; 2. a cushion; 3. an armrest bracket; 4. a triangular armrest; 5. a handrail vent; 6. the handrail has air holes; 7. a connecting frame; 8. a backrest; 9. air holes on the backrest; 10. a support; 11. a jack; 12. connecting holes; 13. a universal wheel mechanism; 14. a mounting frame; 15. mounting grooves; 16. a sliding hole; 17. connecting blocks; 18. a first hinge frame; 19. a first hinge slot; 20. a first hinge shaft; 21. pushing the shaft; 22. a second hinge frame; 23. a second hinge groove; 24. a second hinge shaft; 25. a connecting rod; 26. a rotation limiting groove; 27. an upper clamping hole; 28. a lower clamping hole; 29. mounting a wheel carrier; 30. a universal wheel; 31. a rotation limiting bar; 32. a card slot; 33. a spring; 34. and (7) clamping blocks.

Detailed Description

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

As shown in fig. 1, a highly breathable office chair comprises a base 1. Fixed mounting has cushion 2 on the top of base 1, and cushion 2 includes plastic skeleton and wraps up the PU synthetic leather outside plastic skeleton. Equal fixedly connected with handrail bracket 3 on the both sides wall of cushion 2, handrail bracket 3 is "L" shape, and its lateral wall through a lateral wall and cushion 2 links to each other, and fixed mounting has triangle handrail 4 on handrail bracket 3, and triangle handrail 4 includes the triangle-shaped plastic skeleton that links to each other with handrail bracket 3 and wraps up the PU synthetic leather outside plastic skeleton. The middle part of the triangular armrest 4 is provided with armrest vent holes 5, the top surface of the triangular armrest 4 is provided with armrest vent holes 6 communicated with the armrest vent holes 5, and in the embodiment, the number of the armrest vent holes 6 is five. Fixedly connected with link 7 on the lateral wall of 2 rear sides of cushion, link 7 is "L" shape, and link 7 keeps away from one of cushion 2 and serves fixedly connected with back 8, and back 8 includes the plastic skeleton that links to each other with link 7 and wraps up the PU synthetic leather outside plastic skeleton. The side wall of the backrest 8 facing the triangular armrest 4 is provided with circular backrest ventilation holes 9, and in the embodiment, the number of the backrest ventilation holes 9 is twenty-five.

The use process of this high ventilative office chair does: the hip of a user sits on the seat cushion 2, the arms of the user are placed on the triangular armrests 4, the armrest vent holes 5 are formed in the middle of the two triangular armrests 4, the circulation of peripheral air and air above the seat cushion 2 is improved, and the armrest vent holes 6 are formed in the top surfaces of the two triangular armrests 4, so that on one hand, the contact area between the triangular armrests 4 and the arms is reduced, on the other hand, air in the armrest vent holes 5 can flow upwards through the armrest vent holes 5, the air permeability of the triangular armrests 4 is improved, and the heat dissipation performance of the triangular armrests 4 is improved; the back of a user is attached to the backrest 8, the backrest air holes 9 are formed in the backrest 8, the circulation of peripheral air and the front side area of the backrest 8 is increased, the air permeability of the backrest 8 is improved, the heat dissipation performance of the backrest 8 is improved, and the high-ventilation office chair has good ventilation performance.

As shown in fig. 1 and 3, the base 1 includes five supports 10, the five supports 10 are distributed in an equidistant circumference, a circular insertion hole 11 is formed through the top surface of each support 10, and the insertion hole 11 is formed near one end of the support 10 far away from the center of the base 1. Four circular connecting holes 12 are formed in the hole wall of each jack 11, and the four connecting holes 12 are distributed in an equidistant and circumferential mode.

As shown in fig. 2 and 3, a universal wheel mechanism 13 is detachably mounted at one end of each support 10 close to the center of the base 1, the universal wheel mechanism 13 comprises a mounting frame 14, the mounting frame 14 is cylindrical, and the mounting frame 14 is in plug fit with the insertion holes 11. Circular shape mounting groove 15 has been seted up on the bottom surface of mounting bracket 14, has seted up four circular shape holes of sliding 16 on the lateral wall of mounting bracket 14, and four holes of sliding 16 are the equidistance circumference and distribute, and four holes of sliding 16 are used for aligning with four connecting holes 12 respectively.

As shown in fig. 3 and 4, each sliding hole 16 is slidably provided with a connecting block 17, the connecting block 17 is cylindrical, and the connecting block 17 is used for being in plug-in fit with the connecting hole 12. Every connecting block 17 is close to the first articulated frame 18 of equal fixedly connected with on the terminal surface of mounting groove 15, has all seted up first articulated groove 19 on every first articulated frame 18 deviates from the terminal surface of connecting block 17, and fixed mounting has first articulated shaft 20 in the first articulated groove 19. A control block mechanism is arranged in the mounting groove 15 and used for driving the connecting block 17 to slide in the sliding hole 16 so as to control the connection and separation of the connecting block 17 and the connecting hole 12.

As shown in fig. 3, 4 and 5, the control block mechanism includes a push shaft 21, a second hinge bracket 22, and a link 25. The pushing shaft 21 is cylindrical and located at the center of the mounting groove 15, when the universal wheel mechanism 13 is connected with the bracket 10, the top surface of the pushing shaft 21 abuts against the groove bottom of the mounting groove 15, and when the universal wheel mechanism 13 is detached from the bracket 10, the top surface of the pushing shaft 21 does not abut against the groove bottom of the mounting groove 15. The number of the second hinge brackets 22 is four, and four second hinge brackets 22 are equidistantly and circumferentially distributed on the outer side wall of the pushing shaft 21, and the four second hinge brackets 22 correspond to the four first hinge brackets 18. A second hinge groove 23 is formed in the end face, away from the push shaft 21, of each second hinge frame 22, and a second hinge shaft 24 is fixedly mounted in the second hinge groove 23. The number of the connecting rods 25 is four and the four connecting rods 25 are distributed circumferentially at equal intervals, and each connecting rod 25 has one end rotatably connected with the first hinge shaft 20, that is, the connecting rod 25 is hinged with the first hinge frame 18 through the first hinge shaft 20, and the other end rotatably connected with the second hinge shaft 24, that is, the connecting rod 25 is hinged with the second hinge frame 22 through the second hinge shaft 24. In the initial state, i.e. when the gimbal mechanism 13 is not mounted on the support 10, the articulation of the connecting rod 25 with the first articulated frame 18 is vertically higher than the articulation of the connecting rod 25 with the second articulated frame 22.

As shown in fig. 3 and 5, a rotation limiting groove 26 is formed on the bottom surface of the mounting bracket 14, the cross section of the rotation limiting groove 26 is rectangular, and the rotation limiting groove 26 is communicated with the mounting groove 15. The outer side wall of the mounting frame 14 is provided with an upper clamping hole 27 and a lower clamping hole 28, the upper clamping hole 27 and the lower clamping hole 28 are both circular, the upper clamping hole 27 and the lower clamping hole 28 are both communicated with the rotation limiting groove 26, and the upper clamping hole 27 is located right above the lower clamping hole 28.

As shown in fig. 3 and 6, a wheel mounting frame 29 is coaxially connected to the bottom surface of the pushing shaft 21, the wheel mounting frame 29 is cylindrical, the wheel mounting frame 29 is inserted into the mounting groove 15, the wheel mounting frame 29 is slidably fitted into the mounting groove 15, and a universal wheel 30 is fixedly mounted on the bottom surface of the wheel mounting frame 29. The side wall of the wheel mounting frame 29 is fixedly connected with a rotation limiting strip 31, the rotation limiting strip 31 is strip-shaped, and the rotation limiting strip 31 is in sliding fit with the rotation limiting groove 26 so as to limit the rotation of the wheel mounting frame 29 in the mounting groove 15. A circular clamping groove 32 is formed in the side wall, away from the wheel mounting frame 29, of the rotation limiting strip 31, a spring 33 is fixedly connected to the bottom wall of the clamping groove 32, one end, away from the bottom wall of the clamping groove 32, of the spring 33 is connected with a clamping block 34, and the clamping block 34 is in clamping fit with the upper clamping hole 27 and the lower clamping hole 28. When the latch 34 is inserted into the upper latch hole 27, the connecting block 17 protrudes out of the hole of the connecting hole 12; when the latch 34 is inserted into the lower latch hole 28, the connecting block 17 is retracted into the connecting hole 12.

This high ventilative office chair's dismouting process does:

when the high-permeability office chair is disassembled, a user lifts the high-permeability office chair or raises the high-permeability office chair, then presses the fixture block 34, the fixture block 34 in clamping fit with the upper clamping hole 27 is pressed into the fixture groove 32, the spring 33 is compressed in the process, then the universal wheel 30, the wheel mounting frame 29 and the push shaft 21 move downwards under the action of gravity until the fixture groove 32 is aligned with the lower clamping hole 28, and then the fixture block 34 is pushed into the lower clamping hole 28 under the reset action of the spring 33; meanwhile, the second hinged frame 22 moves downwards, the connecting rod 25 drives the connecting block 17 to move towards the direction close to the mounting groove 15 until the connecting block 17 retracts into the sliding hole 16, the mounting frame 14 is taken out of the jack 11 at the moment, the high-ventilation office chair can detach the universal wheel mechanism 13 from the support 10 without the aid of detaching tools such as screwdrivers, and the maintenance and the replacement are convenient.

During installation, a user lifts the high-permeability office chair or raises the high-permeability office chair, then inserts the mounting frame 14 into the insertion hole 11 until the top surface of the mounting frame 14 is flush with the top surface of the support 10, and the four sliding holes 16 are aligned with the four connecting holes 12, then presses the fixture block 34, the fixture block 34 in clamping fit with the lower fixture hole 28 is pressed into the fixture groove 32, the spring 33 is compressed in the process, then the universal wheel 30, the wheel mounting frame 29 and the push shaft 21 are pushed by hands to move upwards, then the second hinge frame 22 moves upwards, and then the connecting block 17 is pushed by the connecting rod 25 to move towards the direction far away from the mounting groove 15 until the connecting block 17 is inserted into the connecting hole 12; meanwhile, the top surface of the push shaft 21 is abutted against the bottom wall of the mounting groove 15, the clamping groove 32 is aligned with the upper clamping hole 27, the clamping block 34 is pushed into the upper clamping hole 27 under the reset action of the spring 33, the connecting block 17 is kept in a state of being inserted into the connecting hole 12, and at the moment, the support 10 is connected with the universal wheel mechanism 13, so that the replacement is convenient.

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 (6)

1. A high-ventilation office chair, comprising a base (1) with a plurality of brackets (10), characterized in that: jack holes (11) are formed in the top surface of each support (10), a plurality of connecting holes (12) are formed in the hole wall of each jack hole (11), a universal wheel mechanism (13) is arranged on each support (10), the universal wheel mechanism (13) comprises a mounting rack (14) which is in splicing fit with the jack (11) and a universal wheel (30) which is arranged at the bottom of the mounting rack (14), the bottom surface of the mounting rack (14) is provided with a mounting groove (15), the side wall of the mounting rack (14) is provided with a plurality of sliding holes (16) communicated with the mounting groove (15), each sliding hole (16) is internally provided with a connecting block (17) inserted into the connecting hole (12) in a sliding manner, and a control block mechanism for driving the connecting block (17) to slide in the sliding hole (16) to control the connection and separation of the connecting block (17) and the connecting hole (12) is arranged in the mounting groove (15).

2. A highly breathable office chair according to claim 1, wherein: each end face, close to the mounting groove (15), of each connecting block (17) is provided with a first hinge frame (18), a first hinge groove (19) is formed in the end face, away from the connecting block (17), of each first hinge frame (18), a first hinge shaft (20) is arranged in each first hinge groove (19), each control block mechanism comprises a push shaft (21) which is arranged in the center of the mounting groove (15) and the top face of each first hinge frame is used for abutting against the bottom of the mounting groove (15), a plurality of second hinge frames (22) and a plurality of connecting rods (25) which are arranged on the side walls of the push shafts (21), a second hinge groove (23) is formed in the end face, away from the push shafts (21), of each second hinge frame (22), a second hinge shaft (24) is arranged in each second hinge groove (23), each connecting rod (25) is hinged to the first hinge frame (18) through the first hinge shaft (20), and the other end of each connecting rod (25) is hinged to the second hinge frame (22) through the second hinge shaft, the hinge joint of the connecting rod (25) and the first hinge frame (18) is higher than the hinge joint of the connecting rod (25) and the second hinge frame (22) in the vertical direction.

3. A highly breathable office chair according to claim 2, wherein: the bottom surface of the mounting rack (14) is provided with a rotation limiting groove (26) communicated with the mounting groove (15), the bottom of the push shaft (21) is provided with a wheel mounting rack (29) the bottom surface of which is used for mounting a universal wheel (30), and the side wall of the wheel mounting rack (29) is provided with a rotation limiting strip (31) in sliding fit with the rotation limiting groove (26).

4. A highly breathable office chair according to claim 3, wherein: limiting rotation strip (31) deviate from and seted up draw-in groove (32) on the lateral wall of dress wheel carrier (29), be provided with spring (33) in draw-in groove (32), the one end that draw-in groove (32) diapire was kept away from in spring (33) is connected with fixture block (34), set up on the lateral wall of mounting bracket (14) all with limiting rotation groove (26) intercommunication and be last calorie of hole (27), lower calorie of hole (28) that distribute from top to bottom, when going up calorie of hole (27) and fixture block (34) joint cooperation, the drill way of connecting block (17) protrusion sliding hole (16), when lower calorie of hole (28) and fixture block (34) joint cooperation, connecting block (17) retraction sliding hole (16).

5. A highly breathable office chair according to claim 1, wherein: the utility model discloses a seat, including base (1), the top of base (1) is provided with cushion (2), the bilateral symmetry of cushion (2) is provided with triangle handrail (4), handrail air vent (5) have been seted up at the middle part of triangle handrail (4), handrail bleeder vent (6) with handrail air vent (5) intercommunication have been seted up on the top surface of triangle handrail (4).

6. A highly breathable office chair according to claim 5, wherein: be provided with link (7) on the lateral wall of cushion (2), one of cushion (2) is kept away from in link (7) serves and is provided with back (8), run through on the lateral wall of back (8) towards triangle handrail (4) and seted up back bleeder vent (9).

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