CN213291880U - Brake structure of office chair - Google Patents

Abstract

The utility model discloses a brake structure of an office chair, which comprises a wheel carrier, wherein one side wall of the wheel carrier is provided with a chair leg connecting piece, a sliding groove is arranged in the middle of the wheel carrier, the inside of the sliding groove penetrates through the bottom end of the wheel carrier, a rotating hole penetrates through the lower part of the side wall of the wheel carrier, the rotating hole is communicated with the sliding groove, a wheel shaft is rotatably connected in the rotating hole, two ends of the wheel shaft respectively penetrate through the rotating hole and are fixedly connected with a wheel body, an automatic brake component for limiting the rotation of the wheel shaft is arranged in the sliding groove, an installation groove is arranged on the other side wall of the wheel frame, the inside of the mounting groove is provided with a manual brake component which limits the rotation of the wheel body, the utility model comprises an automatic brake component and a manual brake component, the office chair is limited from moving disorderly by the matching arrangement of the two components, and meanwhile, office workers can conveniently sit on the office chair for working.

Description

Brake structure of office chair

Technical Field

The utility model relates to a brake equipment technical field, concrete field is a brake structure of office chair.

Background

The office chair refers to various chairs which are equipped for working conveniently in daily work and social activities. Office chairs are classified into a narrow office chair and a generalized office chair, the narrow office chair refers to a backrest chair on which a person sits when working on a desktop in a sitting posture, and the generalized office chair is all chairs used in offices and comprises a large office chair, a middle office chair, a guest-meeting chair, a staff chair, a conference chair, a visitor chair, a training chair and the like.

The existing office chair is generally provided with the moving wheels, so that the office chair can be moved when a user sits on the office chair conveniently, but the existing moving wheels are basically not provided with a brake mechanism, when the office chair is placed in a static state without sitting, if the user accidentally bumps the office chair, the office chair can be moved to a far position, the office looks disordered, and meanwhile, the walking of other people can be prevented.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brake structure of office chair to propose current removal wheel and all have not had brake mechanism basically among the solution above-mentioned background art, when the nobody of office chair sits static and places, if someone hits carelessly, the office chair will move very far away position, makes the office seem very in disorder, also has the problem that probably hinders other people's walking simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a brake structure of office chair, includes the wheel carrier, a lateral wall of wheel carrier is equipped with chair leg connecting piece, the intermediate position of wheel carrier is equipped with the spout, the bottom of wheel carrier is run through out to the inside of spout, the lateral wall lower part of wheel carrier is run through has the rotation hole, rotation hole and spout intercommunication, it is connected with the shaft to rotate downthehole rotation, the both ends of shaft run through respectively and rotate the hole and equal fixedly connected with wheel body, the inside of spout is equipped with restriction shaft pivoted automatic braking subassembly, another lateral wall of wheel carrier is equipped with the mounting groove, the inside of mounting groove is equipped with restriction wheel body pivoted manual brake subassembly.

Preferably, the automatic brake assembly comprises a brake block and a spring, the brake block is slidably connected in the sliding groove, a brake hole is formed in the side wall of the brake block, the wheel shaft penetrates through the brake hole, one end of the spring is fixedly installed on the top end of the brake block, and the other end of the spring is fixedly installed on the top end of the inside of the sliding groove.

Preferably, the wheel body comprises a wheel piece inner ring and a wheel piece outer ring, the wheel piece inner ring is fixedly mounted on the wheel shaft, the wheel piece outer ring is sleeved on the wheel piece inner ring, and a plurality of clamping grooves are uniformly formed in the inner side wall of the wheel piece inner ring.

Preferably, the hand brake subassembly includes manual plectrum and fixture block, the lateral wall of manual plectrum is close to middle position and rotates and connect on the inside wall of mounting groove, fixture block fixed mounting is served at the inside that manual plectrum is located the mounting groove, the both ends of fixture block extend the mounting groove and respectively the joint two in the draw-in groove of wheel piece inner circle.

Preferably, the two ends of the clamping block are provided with clamping strips, and the clamping strips are clamped in the corresponding clamping grooves.

Preferably, the chair leg connecting piece is a connecting cylinder piece.

Preferably, the wheel frame is in a semicircular shape.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a brake structure of office chair, is in when quiescent condition when the nobody of office chair sits, can make the shaft automatic compression between the brake hole inside wall of brake block and the inside wall of rotating the hole through spring A, restricts the rotation of shaft, restricts the rotation of wheel body simultaneously, prevents that office chair from being hit the back and removing to the position far away, influences other people's walking.

When a person sits on the office chair, the wheel shaft jacks up the brake block to unlock the wheel shaft, and when the person sits on the office chair moves, the wheel body can rotate to move the office chair, so that the office chair is convenient to work.

When a person sitting on the office chair does not move for a long time and does not want to move the office chair, the manual shifting piece can be pulled, so that the clamping strips at the two ends of the clamping block are respectively clamped into the clamping grooves in the wheel piece inner rings at the two sides, the rotation of the wheel piece inner rings is limited, and the person can stably sit on the office chair for a long time to work.

The utility model discloses contain automatic brake subassembly and manual brake subassembly, set up through the cooperation of two subassemblies, restricted the indiscriminate removal of office chair, also made things convenient for the official working personnel to sit official working on office chair simultaneously.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the present invention with a wheel body removed;

FIG. 3 is a schematic side view of the wheel frame of the present invention with the wheel frame removed;

FIG. 4 is a schematic view of the three-dimensional structure of the present invention with the wheel frame removed;

FIG. 5 is a schematic side view and sectional view of the present invention;

FIG. 6 is a schematic perspective view of the inner ring of the wheel disc of the present invention;

fig. 7 is a schematic view of the three-dimensional structure of the fixture block of the present invention.

In the figure: the device comprises a wheel frame 1, a chair leg connecting piece 2, a sliding groove 3, a rotating hole 4, a wheel shaft 5, a mounting groove 6, a brake block 7, a spring 8, a wheel sheet inner ring 9, a wheel sheet outer ring 10, a clamping groove 11, a manual shifting sheet 12, a clamping block 13 and a clamping strip 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a brake structure of office chair, includes wheel carrier 1, a lateral wall of wheel carrier 1 is equipped with chair leg connecting piece 2, the intermediate position of wheel carrier 1 is equipped with spout 3, and spout 3 is rectangular form, the bottom of wheel carrier 1 is run through to the inside of spout 3, the lateral wall lower part of wheel carrier 1 runs through has rotation hole 4, rotation hole 4 and spout 3 intercommunication, 4 internal rotation in rotation hole is connected with shaft 5, and the partial lateral wall of pivot 5 also rotates at spout 3, the both ends of shaft 5 run through respectively and rotate hole 4 and equal fixedly connected with wheel body, and two wheel bodies distribute respectively in the both sides of wheel carrier 1, the inside of spout 3 is equipped with restriction shaft 5 pivoted automatic braking subassembly, another lateral wall of wheel carrier 1 is equipped with mounting groove 6, the inside of mounting groove 6 is equipped with restriction wheel body pivoted hand brake subassembly.

Specifically, the automatic brake assembly comprises a brake block 7 and a spring 8, the brake block 7 is rectangular, the brake block 7 is slidably connected in the sliding groove 3, a brake hole is formed in the side wall of the brake block 7, the wheel shaft 5 penetrates through the brake hole, one end of the spring 8 is fixedly installed at the top end of the brake block 7, the other end of the spring 8 is fixedly installed at the top end inside the sliding groove 3, when the office chair is not in a static state, the wheel shaft 5 can be automatically pressed between the inner side wall of the brake hole of the brake block 7 and the inner side wall of the rotating hole 4 through the spring A8 to limit the rotation of the wheel shaft 5 and limit the rotation of the wheel body, the office chair is prevented from moving to a far position after being collided, so that the walking of other people is influenced, when a person sits on the office chair, the wheel shaft 5 jacks up the brake block 7 to unlock the wheel shaft 5, and when the person sitting on the office chair, the wheel body can rotate to move the office chair.

Particularly, the wheel body includes wheel piece inner circle 9 and wheel piece outer circle 10, wheel piece inner circle 9 fixed mounting is on shaft 5, wheel piece outer circle 10 cup joints on wheel piece inner circle 9, the even a plurality of draw-in groove 11 that is equipped with of inside wall of wheel piece inner circle 9, and wheel piece outer circle 10 adopts rubber materials to make, increases the frictional property on wheel body and ground, prevents that the wheel body from skidding.

Particularly, the hand brake subassembly includes manual plectrum 12 and fixture block 13, the lateral wall of manual plectrum 12 is close to the position rotation in the middle and is connected on the inside wall of mounting groove 6, fixture block 13 fixed mounting is served in the inside that manual plectrum 12 is located mounting groove 6, the both ends of fixture block 13 extend mounting groove 6 and joint respectively two in the draw-in groove 11 of wheel piece inner circle 9, when the people who sits on the office chair is motionless for a long time and when not wanting to let the office chair remove, can pull manual plectrum 12, make in card strip 14 on the fixture block 13 both ends card respectively go into draw-in groove 11 in the wheel piece inner circle 9 of both sides, restriction wheel piece inner circle 9's rotation to can be long-time stable sit official working on the office chair.

Specifically, the two ends of the clamping block 13 are provided with clamping strips 14, the clamping strips 14 are clamped in the corresponding clamping grooves 11, the clamping block 13 and the clamping strips 14 are both in a cuboid shape, and when the clamping strips 14 are clamped in the clamping grooves 11, the rotation of the wheel body can be limited.

Specifically, the leg link 2 is a connecting tube.

Specifically, the wheel frame 1 is semicircular, so that the wheel frame 1 is prevented from contacting the ground and affecting the movement of the office chair.

The working principle is as follows: in the utility model, the wheel frame 1 can be arranged on the chair legs of the office chair through the chair leg connecting piece 2, the wheel bodies can be arranged on the two sides of the wheel frame 1 through the matching arrangement of the rotating hole 4 and the wheel shaft 5, thereby the office chair can be moved on the ground, when the office chair is in a static state without sitting, the wheel shaft 5 can be automatically pressed between the inner side wall of the braking hole of the braking block 7 and the inner side wall of the rotating hole 4 through the spring A8 to limit the rotation of the wheel shaft 5 and the rotation of the wheel body simultaneously, the office chair is prevented from being moved to a far position after being hit, the walking of other people is influenced, when the person sitting on the office chair sits on the office chair, the wheel shaft 5 jacks up the braking block 7 to unlock the wheel shaft 5, when the person sitting on the office chair moves, the wheel body can rotate to move the office chair, when the person sitting on the office chair does not move for a long time and does not want, can pull manual plectrum 12, in card strip 14 on making fixture block 13 both ends blocked respectively the draw-in groove 11 in the wheel piece inner circle 9 of both sides, restriction wheel piece inner circle 9 rotates to can be long-time stable sit official working on the office chair, the utility model discloses contain automatic brake subassembly and manual brake subassembly, set up through the cooperation of two subassemblies, restricted the indiscriminate removal of office chair, also make things convenient for the official working personnel to sit official working on the office chair simultaneously.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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 (7)

1. The utility model provides a brake structure of office chair, includes wheel carrier (1), its characterized in that: the wheel carrier is characterized in that a chair leg connecting piece (2) is arranged on one side wall of the wheel carrier (1), a sliding groove (3) is formed in the middle of the wheel carrier (1), the bottom end of the wheel carrier (1) penetrates through the inside of the sliding groove (3), a rotating hole (4) penetrates through the lower portion of the side wall of the wheel carrier (1), the rotating hole (4) is communicated with the sliding groove (3), a wheel shaft (5) is connected to the rotating hole (4) in a rotating mode, the two ends of the wheel shaft (5) penetrate through the rotating hole (4) respectively and are fixedly connected with a wheel body, an automatic brake assembly for limiting rotation of the wheel shaft (5) is arranged inside the sliding groove (3), a mounting groove (6) is formed in the other side wall of the wheel carrier (1), and a manual brake assembly for limiting rotation of the.

2. The brake structure of an office chair according to claim 1, wherein: the automatic brake assembly comprises a brake block (7) and a spring (8), the brake block (7) is connected in the sliding groove (3) in a sliding mode, a brake hole is formed in the side wall of the brake block (7), the wheel shaft (5) penetrates through the brake hole, one end of the spring (8) is fixedly installed on the top end of the brake block (7), and the other end of the spring (8) is fixedly installed on the top end of the interior of the sliding groove (3).

3. The brake structure of an office chair according to claim 1, wherein: the wheel body comprises a wheel piece inner ring (9) and a wheel piece outer ring (10), the wheel piece inner ring (9) is fixedly installed on the wheel shaft (5), the wheel piece outer ring (10) is sleeved on the wheel piece inner ring (9), and a plurality of clamping grooves (11) are uniformly formed in the inner side wall of the wheel piece inner ring (9).

4. The brake structure of an office chair according to claim 3, wherein: the hand brake subassembly includes manual plectrum (12) and fixture block (13), the lateral wall of manual plectrum (12) is close to middle position rotation and connects on the inside wall of mounting groove (6), fixture block (13) fixed mounting is served at the inside that manual plectrum (12) is located mounting groove (6), the both ends of fixture block (13) extend mounting groove (6) and respectively the joint two in draw-in groove (11) of wheel piece inner circle (9).

5. The brake structure of an office chair according to claim 4, wherein: the two ends of the clamping block (13) are provided with clamping strips (14), and the clamping strips (14) are clamped in the corresponding clamping grooves (11).

6. The brake structure of an office chair according to claim 1, wherein: the chair leg connecting piece (2) is a connecting cylinder piece.

7. The brake structure of an office chair according to claim 1, wherein: the wheel carrier (1) is in a semicircular shape.

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