CN218876767U

CN218876767U - Double-brake-wheel caster

Info

Publication number: CN218876767U
Application number: CN202223293483.8U
Authority: CN
Inventors: 吴振球; 吴惠雅; 胡洁莹
Original assignee: Zhongshan Yinghe Truckle Co ltd
Current assignee: Zhongshan Yinghe Truckle Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-04-18
Anticipated expiration: 2032-12-07

Abstract

A double-brake-wheel caster comprises a wheel carrier, a vertical shaft, two wheel bodies, a fixed shaft, a driven braking part, a spring and a pedal brake plate, wherein a bottom spring column is inserted into the lower end of the spring, a spring seat supporting spring, the driven braking part and a guide cavity are in sliding fit, and a top spring column is inserted into the upper end of the spring; the fixed shaft penetrates through the fixed shaft hole and the longitudinal guide hole and is pivoted with the wheel body; the transmission part is pivoted with the fixed shaft and matched with the brake conversion device, the connecting rod is in sliding fit with the guide groove and is in sliding fit with the guide stop groove to stop, and the arc-shaped driving part is in sliding fit with the outer circumferential surface of the wheel frame. The pedal brake plate is driven to rotate and drive the driven brake member to move upwards, the arc brake plate and the brake ring are used for braking, the pedal brake plate and the driven brake member are locked, and the pedal brake plate is rotated reversely to automatically release the brake under the action of the spring; and positioning the pedal brake plate.

Description

Double-brake-wheel caster

Technical Field

The utility model relates to a universal caster.

Background

In the prior art, in the patent 200920313905.9, a full-braking caster comprises a wheel carrier, a wheel, a braking plate, a connecting shaft, a gear, a braking plate, a shifting piece and a sliding piece, and has the following problems: the brake transmission structure is complex.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: the double-brake wheel caster has the characteristics of quick braking and simple structure.

The utility model discloses a realize like this: a dual-brake caster is characterized in that: it comprises a wheel carrier, a vertical shaft, two wheel bodies, a fixed shaft, a driven braking piece, a spring and a pedal braking plate,

the wheel carrier is provided with a lower opening and comprises a vertical shaft seat, a fixed shaft hole, a guide cavity, a top spring column and a guide stop groove, and the end plate of the suspended end of the guide cavity is provided with a clearance groove;

a brake ring is arranged on the wheel body, and driven teeth are arranged on the outer circumferential surface of the brake ring;

the driven brake part is provided with a lower opening and comprises a spring seat and a bottom spring column which are arranged at the top, a brake conversion device arranged on the top plate, a longitudinal guide hole, a guide groove and arc-shaped brake plates arranged at two sides, and the brake conversion device comprises a brake release position, an arc-shaped guide part and a brake position; the circular arc brake plate is provided with a driving tooth;

the pedal brake plate comprises a transmission part, a connecting rod and an arc-shaped driving part,

the bottom spring column is inserted into the lower end of the spring, the spring seat supporting spring, the driven braking part and the guide cavity are in sliding fit, and the top spring column is inserted into the upper end of the spring; the fixed shaft penetrates through the fixed shaft hole and the longitudinal guide hole and is pivoted with the wheel body; the transmission part is pivoted with the fixed shaft and matched with the brake conversion device, the connecting rod is in sliding fit with the guide groove and is in sliding fit with the guide stop groove to stop, and the arc-shaped driving part is in sliding fit with the outer circumferential surface of the wheel frame.

The dual-brake caster is characterized in that: the outer circumferential surface of the wheel carrier is provided with a guide groove, and the circular arc pedal part is in sliding fit with the guide groove.

The dual-brake caster is characterized in that: and a pedal is arranged on the circular arc driving part.

The utility model relates to a dual-brake wheel caster, drive pedal braking vane, pedal braking vane rotates and drives the driven brake part to move upwards, the circular arc braking vane brakes with the brake ring, pedal braking vane and driven brake part locking, the reverse rotation pedal braking vane automatically removes the brake under the spring action; and positioning the pedal brake plate.

Drawings

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a view a-a of fig. 1.

Fig. 3 is one of the exploded perspective views of the present invention.

Fig. 4 is a second exploded perspective view of the present invention.

Fig. 5 is a perspective view of the pedal brake plate of the present invention.

Fig. 6 is a perspective view of the pedal brake plate of the present invention.

Fig. 7 is a perspective sectional view of the wheel carrier of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in figure 1, the double-brake caster comprises a wheel frame 1, a vertical shaft 2, two wheel bodies 3, a fixed shaft 4, a driven braking piece 5, a spring 6 and a pedal braking plate 7,

the wheel carrier 1 is provided with a lower opening, the wheel carrier 1 comprises a vertical shaft seat 11, a fixed shaft hole 12, a guide cavity 13, a top spring column 14 and a guide stop groove 15, and an end plate at the suspension end of the guide cavity 13 is provided with a clearance groove 131;

a brake ring 31 is arranged on the wheel body 3, and driven teeth are arranged on the outer circumferential surface of the brake ring 31;

the driven brake part 5 is provided with a lower opening and comprises a spring seat 51 and a bottom spring column 52 which are arranged at the top, a brake conversion device arranged on the top plate, a longitudinal guide hole 53, a guide groove 54 and circular arc brake plates 55 arranged at two sides, wherein the brake conversion device comprises a brake release position 561, an arc guide part 562 and a brake position 563; the arc-shaped brake plate 55 is provided with driving teeth;

the pedal brake plate 7 comprises a transmission part 71, a connecting rod 72 and a circular arc driving part 73,

the bottom spring column 52 is inserted into the lower end of the spring 6, the spring seat 51 supports the spring 6, the driven braking part 5 is in sliding fit with the guide cavity 13, the top spring column 14 is inserted into the upper end of the spring 6, and the upper end of the spring 6 is matched with a top plate of the guide cavity 13; the fixed shaft 4 passes through the fixed shaft hole 12 and the longitudinal guide hole 53 and is pivoted with the wheel body 3; the transmission part 71 is pivoted with the fixed shaft 4 and is matched with the brake conversion device, the connecting rod 72 is in sliding fit with the guide groove 54 and is in sliding fit with the guide stop groove 15 for stopping, and the circular arc-shaped driving part 73 is in sliding fit with the outer circumferential surface of the wheel frame 1;

FIG. 1 shows a brake-released driving state, in which the transmission part 71 is engaged with the brake-releasing position 561, the spring 6 is in an extended state, and the connecting rod 72 is engaged with the closed end of the guide stop slot 15; preventing the pedal brake pedal 7 from rotating clockwise. In the state shown in fig. 1, when the arc-shaped driving portion 73 is pedaled, the arc-shaped driving portion 73 rotates clockwise, the transmission portion 71 is in sliding fit with the arc-shaped guide portion 562, the driven braking member 5 moves upwards, the transmission portion 71 is matched with the braking position 563, and the driving teeth on the arc-shaped braking plate 55 are meshed with the driven teeth on the braking ring 31 to realize braking; the spring is in a compressed state. In a braking state, the foot brake pedal 7 rotates anticlockwise, the transmission part 71 is in sliding fit with the arc-shaped guide part 562, and then the transmission part 71 is in fit with the arc-shaped guide part 562;

compared with the prior art: the number of parts is reduced, and the cost is reduced; and the action is fast.

As a further improvement of the utility model: the outer circumferential surface of the wheel carrier 1 is provided with a guide groove, and the arc-shaped pedal part 73 is in sliding fit with the guide groove to prevent the pedal braking plate 7 from shaking.

A pedal 731 is provided on the circular arc driving portion 73.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a dual-brake wheel truckle which characterized in that: it comprises a wheel carrier, a vertical shaft, two wheel bodies, a fixed shaft, a driven braking piece, a spring and a pedal braking plate,

the wheel carrier is provided with a lower opening and comprises a vertical shaft seat, a fixed shaft hole, a guide cavity, a top spring column and a guide stop groove, and an end plate at the suspension end of the guide cavity is provided with a clearance groove;

the driven brake part is provided with a lower opening and comprises a spring seat and a bottom spring column which are arranged at the top, a brake conversion device arranged on the top plate, a longitudinal guide hole, a guide groove and arc-shaped brake plates arranged at two sides, and the brake conversion device comprises a brake release position, an arc-shaped guide part and a brake position; the arc-shaped brake plate is provided with driving teeth;

the bottom spring column is inserted into the lower end of the spring, the spring seat supporting spring, the driven braking part and the guide cavity are in sliding fit, and the top spring column is inserted into the upper end of the spring; the fixed shaft penetrates through the fixed shaft hole and the longitudinal guide hole and is pivoted with the wheel body; the transmission part is pivoted with the fixed shaft and is matched with the brake conversion device, the connecting rod is in sliding fit with the guide groove and is in sliding fit with the guide stop groove for stopping, and the circular arc-shaped driving part is in sliding fit with the outer circumferential surface of the wheel frame.

2. The dual-brake caster of claim 1, wherein: the outer circumferential surface of the wheel carrier is provided with a guide groove, and the arc-shaped driving part is in sliding fit with the guide groove.

3. A dual-brake caster according to claim 1 or 2, wherein: and a pedal is arranged on the circular arc driving part.