CN216733750U

CN216733750U - Directional brake wheel for child learning chair

Info

Publication number: CN216733750U
Application number: CN202220436974.4U
Authority: CN
Inventors: 肖建龙; 王献勇
Original assignee: Liaocheng Haishibao Furniture Co ltd
Current assignee: Liaocheng Haishibao Furniture Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-14
Anticipated expiration: 2032-03-02

Abstract

The utility model belongs to the technical field of children learning table and chair application, relates to a brake wheel, and particularly relates to a directional brake wheel for a children learning chair. The locking device comprises a wheel carrier and an installation pipe, wherein the top surface of the wheel carrier is arranged in an arc shape, the installation pipe is arranged at the front end of the wheel carrier, a rotating shaft pipe is arranged on the wheel carrier, a rotating shaft is sleeved in the rotating shaft pipe, traveling wheels are arranged on two sides of the wheel carrier, and the traveling wheels are arranged on two sides of the wheel carrier in a rotating manner through the rotating shaft.

Description

Directional brake wheel for child learning chair

Technical Field

The utility model belongs to the technical field of children learning table and chair application, relates to a brake wheel, and particularly relates to a directional brake wheel for a children learning chair.

Background

The children learning table and chair is based on the principle of ' ergonomics ', the principle of ' best view angle ', the theory of ' body pressure sharing ', the theory of environmental interference ' and other professional original theories, so that the children are helped to achieve the effects of hunchback prevention, eye protection and high-efficiency learning to the greatest extent.

The existing children learning chair is generally provided with a plurality of universal wheels. Some universal wheels do not have a braking function, so that the chair can not move freely and keep the stability of sitting postures in the learning process of children, and the learning and eyesight are influenced. When the children learning chair with the brake function is matched with the elbow supporting learning table with the arc table plate for use, the body of the children learning chair falls into the arc concave plate, and the universal wheel mounting learning chair is difficult to retreat! In addition, when a tablet personal computer with a sight distance requirement is used for learning, the tablet personal computer can move forwards and backwards conveniently in a straight line mode.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems of the universal wheel used by the child learning chair, the utility model provides the directional brake wheel for the child learning chair, which has the advantages of reasonable design, simple structure, convenient processing and convenient control.

In order to achieve the above object, the utility model adopts the technical scheme that the utility model provides a directional brake wheel for a child learning chair, which comprises a wheel carrier and a mounting pipe, wherein the top surface of the wheel carrier is arranged in an arc shape, the mounting pipe is arranged at the front end of the wheel carrier, a rotating shaft pipe is arranged on the wheel carrier, a rotating shaft is sleeved in the rotating shaft pipe, walking wheels are arranged at two sides of the wheel carrier and rotatably arranged at two sides of the wheel carrier through the rotating shaft, one end, far away from the wheel carrier, of the mounting pipe is provided with a positioning pipe, the positioning pipe is fixed on the wheel carrier, the wheel carrier is provided with a locking mechanism for locking the walking wheels, the locking mechanism comprises a rotating pull cover arranged on the wheel carrier, the rotating pull cover comprises an arc-shaped plate arranged at the top of the wheel carrier and connecting pieces arranged at two sides of the arc-shaped plate, the wheel carrier is arranged between the two connecting pieces, and a rotating hole is arranged on the connecting piece, the rotating hole is sleeved outside the rotating shaft pipe, the connecting piece is provided with a brake control hole, the wheel carrier is provided with a brake block, the wheel carrier is provided with a brake square hole for placing a brake block, the middle part of the brake block is arranged in the brake square hole, a return spring is arranged between the brake block and the brake square hole, an adjusting bulge is arranged on the brake block, the adjusting bulges are arranged at two sides of the wheel carrier, two grooves which are arranged at intervals and matched with the adjusting bulges are arranged on the brake control hole, the rotating pull cover realizes the movement of the adjusting protrusion between the two grooves through rotation and forms the compression or release of the return spring, the inboard periphery of walking wheel sets up a plurality of concave square grooves, be provided with on the brake block with concave square groove matched with brake arch, brake arch sets up in the one side of adjusting the arch and keeping away from the wheel carrier.

Preferably, one end of the adjusting protrusion, which is far away from the brake block, is arranged in an arc surface.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides a directional brake wheel for a child learning chair, which realizes the switching between linear movement and universal movement of the brake wheel by improving the existing structure, and simultaneously is convenient to control the locking of the brake wheel, so that the directional brake wheel is more suitable for children.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic structural diagram of a directional brake wheel for a child learning chair provided in embodiment 1;

FIG. 2 is a partially exploded view of the directional brake wheel for a child's learning chair provided in embodiment 1;

fig. 3 is an exploded view between the wheel frame and the locking mechanism provided in embodiment 1;

fig. 4 is a schematic structural diagram of the wheel frame provided in embodiment 1;

fig. 5 is a schematic structural view of the rotating hood according to embodiment 1;

FIG. 6 is a front view of the rotating hood according to embodiment 1;

FIG. 7 is a schematic structural view of a brake block provided in embodiment 1;

fig. 8 is a schematic structural view of a road wheel provided in embodiment 1;

in the above figures, 1, wheel frame; 11. installing a pipe; 12. a positioning tube; 13. a rotating shaft tube; 14. a brake square hole; 2. a traveling wheel; 21. a concave square groove; 3. a rotating shaft; 4. rotating the pull cover; 41. an arc-shaped plate; 42. a connecting member; 421. rotating the hole; 422. a brake control hole; 4221. a groove; 5. a brake block; 51. an adjusting projection; 52. a brake bulge; 6. a return spring; 7. and (7) connecting the shafts.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 8, this embodiment aims to provide a directional brake wheel for a child learning chair, so as to solve the disadvantages of a universal wheel of an existing child learning chair in use, and for this reason, the directional brake wheel for a child learning chair provided by this embodiment includes a wheel frame 1 having an arc-shaped top surface and a mounting tube 11 disposed at the front end of the wheel frame 1, in this embodiment, the wheel frame 1 is regarded as an upper and lower two-part structure, wherein an upper part is a semi-cylindrical shape and a lower part is a diameter of the upper half, a height of the wheel frame is determined by arranging a rotating shaft tube 13 centered on the center of the semi-cylindrical shape, a rotating shaft 3 is sleeved in the rotating shaft tube 13, the mounting tube 11 is disposed at the front end of the wheel frame, and is connected to a chair tube below the learning chair through a mounting rotating shaft 3 (a structure of the cylindrical shaft plus a snap spring) of an existing common universal wheel, traveling wheels 2 are disposed at two sides of the wheel frame 1, the walking wheel 2 is integrally arranged in a bottle cap shape, and a connecting pipe is arranged in the middle of the walking wheel and is used for being connected with the rotating shaft 3 to realize the rotation of the relative wheel carrier 1. In the embodiment, the traveling wheels 2 are rotatably arranged on both sides of the wheel carrier 1 through the rotating shafts 3.

In order to realize the switching rotation of the linear movement and the universal movement, one end of the mounting pipe 11, which is far away from the wheel carrier 1, is provided with a positioning pipe 12, and the positioning pipe 12 is fixed on the wheel carrier 1, so that a connecting pipe is additionally arranged on a chair pipe of the learning chair, the learning chair is limited by the positioning pipe 12 under the condition that the positioning pipe 12 is provided with the mounting rotating shaft 3 and can only move linearly, and the universal rotation of the learning chair is not influenced under the condition that the positioning pipe 12 is not provided with the mounting rotating shaft 3, so that the switching of the universal movement and the linear movement is realized.

In order to facilitate the locking of the brake wheel, a locking mechanism for locking the traveling wheel 2 is arranged on the wheel carrier 1, specifically, the locking mechanism comprises a rotating pull cover 4 arranged on the wheel carrier 1, the rotating pull cover 4 comprises an arc plate 41 arranged on the top of the wheel carrier 1 and connecting pieces 42 arranged on two sides of the arc plate 41, the arc plate 41 is arranged to be attached to the arc surface on the top of the wheel carrier 1, the connecting pieces 42 are arranged in two plate shapes and located on two sides of the wheel carrier 1, the arc plate 41 is erected above the arc surface of the wheel carrier 1 under the action of the connecting pieces 42, a rotating hole 421 is arranged on the connecting pieces 42, and the rotating hole 421 is sleeved outside the rotating shaft tube 13, so that the rotating pull cover 4 can rotate relative to the wheel carrier 1. The rotation hole 421 is provided at an end of the link member 42 remote from the arc shape. One end of the connecting piece 42 close to the arc-shaped plate 41 is provided with a brake control hole 422, the wheel carrier 1 is provided with a brake block 5, the whole brake block 5 is arranged in a rectangular block shape, the wheel carrier 1 is provided with a brake square hole 14 for placing the brake block 5, and the brake square hole 14 is arranged on one side of the rotating shaft pipe 13 far away from the installation pipe 11. The middle part of the brake block 5 is arranged in the brake square hole 14, and the return spring 6 is arranged between the brake block 5 and the brake square hole 14, so that the brake block 5 can realize the return between the movement towards the center of the wheel frame 1 and the movement towards the edge of the wheel frame 1 under the action of the return spring 6.

The brake block 5 is provided with an adjusting protrusion 51, the adjusting protrusion 51 is arranged on two sides of the wheel frame 1, and the brake control hole 422 is provided with two grooves 4221 arranged at intervals and matched with the adjusting protrusion 51, in the embodiment, the purpose of the groove 4221 is mainly to extrude the brake block 5 when the rotating pull cover 4 rotates, so that the brake block 5 moves towards the center square of the wheel frame 1, and when the rotating pull cover moves towards the other groove 4221, the brake block 5 is separated from extrusion, so that the brake block moves towards the edge direction of the wheel frame 1 under the action of the return spring 6. Furthermore, the rotating cap 4 rotates to move the adjusting protrusion 51 between the two grooves 4221 and compress or release the return spring 6.

The main purpose of the brake block 5 is to control the rotation of the road wheel 2, for this purpose, a plurality of concave square grooves 21 are arranged on the inner periphery of the road wheel 2, a brake bulge 52 matched with the concave square grooves 21 is arranged on the brake block 5, and the brake bulge 52 is arranged on one side of the adjusting bulge 51 far away from the wheel frame 1. Thus, when the brake block 5 moves towards the edge of the wheel frame 1, the brake bulge 52 of the brake block can be clamped in the concave square groove 21 and limited by the brake bulge 52, the walking wheel 2 cannot rotate, and the walking wheel 2 is locked. Otherwise, the rotation of the road wheels 2 is realized.

In order to control the movement of the adjusting protrusion 51 in the brake control hole 422 and avoid the obstruction, one end of the adjusting protrusion 51 away from the brake block 5 is arranged in a cambered surface. The top surface of adjusting protrusion 51 is similar to the triangle-shaped setting in this embodiment, and it is provided with two purposes, and one is the holding state, and under the effect of no external force, adjusting protrusion 51 hardly breaks away from recess 4221 under reset spring 6's effect to ensure the stability that the state kept, in addition, just conveniently under the effect of external force, the realization breaks away from, like this, makes it more suitable children to use.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a be used for children to learn directional brake wheel of chair, includes that the top surface is the wheel carrier that the arc set up and sets up the installation pipe at the wheel carrier front end, be provided with the pivot pipe on the wheel carrier, pivot intraductal cover is equipped with the pivot, the both sides of wheel carrier are provided with the walking wheel, the walking wheel rotates the both sides that set up at the wheel carrier through the pivot, its characterized in that, the one end that the wheel carrier was kept away from to the installation pipe is provided with the registration arm, the registration arm is fixed on the wheel carrier, be provided with the locking mechanical system who is used for locking the walking wheel on the wheel carrier, locking mechanical system is including setting up the rotation pulling cap on the wheel carrier, the rotation pulling cap is including setting up the arc at the wheel carrier top and setting up the connecting piece in the arc both sides, the wheel carrier is in between two connecting pieces, be provided with the rotation hole on the connecting piece, the rotation hole suit is outside the pivot pipe, be provided with the brake control hole on the connecting piece, be provided with the brake block on the wheel carrier, be provided with the brake square hole that is used for placing the brake block on the wheel carrier, the middle part setting of brake block is in the brake square hole, be provided with reset spring between brake block and the brake square hole, it is protruding to be provided with the regulation on the brake block, adjust protruding both sides that set up at the wheel carrier, be provided with the recess that two intervals set up and adjust protruding cooperation setting on the brake control hole, it realizes through rotating the pull cover that the removal of regulation arch between two recesses just forms the compression or the release to reset spring, the inboard periphery of walking wheel sets up a plurality of concave square grooves, be provided with on the brake block with concave square groove matched with brake arch, the protruding one side of keeping away from the wheel carrier of setting up in the regulation arch of brake.

2. The directional brake wheel for the children's learning chair as claimed in claim 1, wherein the end of the adjusting protrusion away from the brake block is arranged in a cambered surface.