CN212796399U

CN212796399U - Movable caster capable of braking

Info

Publication number: CN212796399U
Application number: CN202021248136.1U
Authority: CN
Inventors: 黄泽波
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-03-26
Anticipated expiration: 2030-07-01

Abstract

The utility model relates to a movable caster wheel capable of braking, which comprises a support frame, a turntable and wheels, wherein the first end of an extension frame is connected with the support frame; the first end of the brake plate is hinged to the second end of the extension frame, the first end of the reset plate is hinged to the second end of the brake plate, and the brake plate comprises a first pedal extending outwards from the second end of the brake plate; the spring piece is integrally formed, and the middle of the spring piece is hinged with the extension frame; the first end of the spring piece is provided with a clamping part, and the lower end of the rotary disc is provided with convex teeth; the second end of the spring piece is hinged with the second end of the reset plate, and the reset plate comprises a second pedal extending outwards from the second end of the reset plate; the spring leaf includes the shell fragment that resets and supports and press the shell fragment, thereby the shell fragment that resets extends and upwards extends under the extension frame to the first end of spring leaf from the spring leaf centre, supports and presses the shell fragment setting and buckle the arch towards the wheel between the spring leaf centre and the spring leaf second end. The utility model discloses can realize the brake braking of movable truckle, and simple structure easily assembles.

Description

Movable caster capable of braking

Technical Field

The utility model relates to a truckle technical field, concretely relates to movable truckle that can brake.

Background

Casters, which are one of the key components of movable articles such as carts, moving racks, shop trucks, movable furniture, movable equipment, etc., are generally mounted at the lower end of the article to impart a movable function to the article. Casters can be functionally classified into a caster that allows the wheel to rotate in a horizontal plane relative to the object so that the object can rotate and move in a desired direction, and a directional caster, the wheel of which does not have the function of rotating in a horizontal plane, and both casters are often used in combination. When the movable object is stopped, the braking requirement exists, the object is prevented from moving continuously, and particularly, the braking of the caster is particularly important in the occasions where the ground is inclined or the ground is smooth.

Most of the existing caster brake structures adopt rubber to be in contact with wheels for braking, but the rubber is easy to age, so that the brake failure is caused. At present, a braking structure for braking by using spring pieces is also used, but the braking function can be achieved by matching a plurality of spring pieces, the structure is complex, the assembly is time-consuming and labor-consuming, and mistakes are easy to make.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but to prior art not enough, the truckle that moves about that brakes of simple structure, easy assembly is provided.

In order to realize the utility model discloses an object, the utility model provides a movable truckle that can brake, including support frame, carousel and wheel, the carousel can be connected at horizontal plane internal rotation the upper end of support frame, the wheel can be connected at vertical in-plane internal rotation the support frame lower extreme, movable truckle that can brake still includes: the first end of the extension frame is connected with the support frame; the first end of the brake plate is hinged to the second end of the extension frame, the first end of the reset plate is hinged to the second end of the brake plate, and the brake plate comprises a first pedal extending outwards from the second end of the brake plate; the spring piece is integrally formed, the middle of the spring piece is hinged between the first end of the extension frame and the second end of the extension frame, and the first end of the spring piece and the second end of the spring piece are respectively positioned on two sides of the middle of the spring piece; the first end of the spring piece is provided with a clamping part, the lower end of the rotary disc is provided with a convex tooth, and the clamping part is matched with the convex tooth when moving upwards; the second end of the spring piece is hinged to the second end of the reset plate, the reset plate comprises a second pedal extending outwards from the second end of the reset plate, and the second pedal and the first pedal are arranged in a staggered mode; the spring piece comprises a reset elastic piece and a pressing elastic piece, the reset elastic piece extends from the middle of the spring piece to the first end of the spring piece and extends upwards to abut against the lower portion of the extension frame, the pressing elastic piece is arranged between the middle of the spring piece and the second end of the spring piece and bends and protrudes towards the wheel, and the pressing elastic piece abuts against the wheel when moving downwards.

The spring piece body is provided with a reset elastic piece and a pressing elastic piece, and the reset elastic piece and the pressing elastic piece are processed by the spring piece body.

The further technical scheme is that a notch is arranged in the middle of the bending bulge of the abutting elastic sheet.

The further technical scheme is that the support frame comprises side frames arranged on two sides of the wheels; the extension frame comprises two connecting blocks and an extension block connected with the two connecting blocks, the two connecting blocks are respectively connected with the two side frames, and the extension block extends above the wheels.

The technical scheme is that the side frame comprises a vertical connecting part, the connecting block is vertically arranged and fixed on the connecting part through screws.

The further technical scheme is that the screw is an M6 screw.

The support frame further comprises a bracket connected with the upper ends of the two side frames, and an opening is formed in the center of the bracket; the rotary table comprises an upper rotary table and a lower rotary table, and the convex teeth are arranged below the lower rotary table; the upper rotary table and the lower rotary table clamp the bracket up and down respectively, and the upper rotary table and the lower rotary table are fastened and connected at the opening through rivets; balls are arranged between the upper rotary table and the bracket and between the lower rotary table and the bracket.

The further technical scheme is that a protective sleeve is arranged on the outer side between the upper turntable and the bracket.

The technical scheme is that the rotary table further comprises a fluted disc, the convex teeth are arranged below the fluted disc, and the fluted disc is fixedly connected below the lower rotary table through the rivets.

The technical scheme is that the clamping portion comprises a plurality of clamping holes which are distributed in an arc shape.

Compared with the prior art, the utility model discloses can gain following beneficial effect:

the utility model discloses a but movable truckle of brake can realize movable truckle's brake braking, adopts the spring leaf to brake, does not use the colloid material, avoids the braking scheduling problem that became invalid that the colloid material is ageing to bring, and, the utility model discloses a movable truckle that can brake has adopted integrated into one piece's spring leaf, can realize the brake function with cooperation such as braking vane, the board that resets, and spring leaf simple structure can reduction in production cost with other part convenient assembling.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the braking caster.

Fig. 2 is a schematic sectional view of an embodiment of the caster with brake according to the present invention.

Fig. 3 is a schematic structural view of a spring plate in the embodiment of the brake movable caster of the present invention.

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

Detailed Description

As shown in fig. 1 to 3, the present embodiment provides a brake-able caster, which includes a support frame 10, a rotary plate 20, and wheels 30, wherein the rotary plate 20 is rotatably connected to an upper end of the support frame 10 in a horizontal plane, and the wheels 30 are rotatably connected to a lower end of the support frame 10 in a vertical plane.

Specifically, the support frame 10 includes side frames 11 disposed at both sides of wheels 30, and the wheels 30 are rotatably connected between the two side frames 11 by means of shafts. The support frame 10 further includes a bracket 12 connecting upper ends of the two side frames 11, and the bracket 12 has an opening at the center. The rotary table 20 comprises an upper rotary table 21 and a lower rotary table 22, the upper rotary table 21 and the lower rotary table 22 respectively clamp the bracket 12 up and down, the upper rotary table 21 and the lower rotary table 22 are fixedly connected at an opening by a rivet 23, for example, the middle of the upper rotary table 21 protrudes towards the lower rotary table 22, the middle of the lower rotary table 22 protrudes towards the upper rotary table 21, two protruding parts can be contacted at the opening, and the rivet 23 penetrates through the upper rotary table 21 and the lower rotary table 22 at the opening and fixedly connects the two. Balls 24 are arranged between the upper rotary table 21 and the bracket 12 and between the lower rotary table 22 and the bracket 12, so that the upper rotary table 21 and the lower rotary table 22 can smoothly rotate relative to the bracket 12, when the upper rotary table 21 is connected with an object, the support frame 10 and the wheels 30 can rotate on a horizontal plane relative to the object, and the moving direction of the object can be adjusted.

A protective sleeve 13 is arranged on the outer side between the upper rotating disc 21 and the bracket 12, and the protective sleeve 13 is used for protecting structures such as balls and the like between the upper rotating disc 21 and the bracket 12 and preventing dust and the like from entering the structure.

The turntable 20 further comprises a toothed disc 25, and convex teeth 26 distributed circumferentially are arranged below the toothed disc 25. The gear plate 25 is also fixedly connected below the lower rotary table 22 by the rivet 23 and can rotate simultaneously with the lower rotary table 22.

The caster wheel capable of braking also comprises an extension frame 40, a braking plate 50, a resetting plate 60 and a spring leaf 70. Wherein, the first end of the extension frame 40 is connected with the support frame 10, the first end of the braking plate 50 is hinged at the second end of the extension frame 40, the first end of the resetting plate 60 is hinged at the second end of the braking plate 50, and the braking plate 50 comprises a first pedal 51 extending outwards from the second end of the braking plate 50.

Specifically, the extension frame 40 includes two connection blocks 41 and an extension block 42 connecting the two connection blocks 41, the two connection blocks 41 respectively connect the two side frames 11, the extension block 41 extends above the wheels 30, for example, extends in a horizontal direction, and the first end of the braking plate 50 is hinged to the outer end of the extension block 41. Specifically, the side frame 11 includes a vertical connecting portion 14, the connecting block 41 is vertically disposed, and the connecting block 41 is fixed on the connecting portion 14 through a screw 43, preferably, the screw 43 is an M6 screw, so that a large load of the caster can be realized, for example, a load of 100kg can be realized for a wheel 30 with a diameter of 6 inches. Adopt screw 43 to connect and can save the resource when realizing great bearing, reduce cost.

The spring plate 70 is hinged between the first end of the extension frame 40 and the second end of the extension frame 40, and the first end of the spring plate 70 and the second end of the spring plate 70 are respectively arranged at two sides of the middle of the spring plate 70. Spring leaf 70 first end is equipped with joint portion 71, and joint portion 71 shifts up when cooperating with dogtooth 26, specifically, joint portion 71 includes a plurality of joint holes, and a plurality of joint holes are the arc and distribute to with the dogtooth 26 cooperation of circumference arrangement, the joint hole can block dogtooth 26 effectively, avoids dogtooth 26 to deviate from joint portion 71. The second end of the spring leaf 70 is hinged at the second end of the reset plate 60, the reset plate 60 comprises a second pedal 61 extending outwards from the second end of the reset plate 60, the second pedal 61 and the first pedal 51 are arranged in a staggered manner, for example, the second pedal 61 and the first pedal 51 are respectively arranged at the left side and the right side of a central vertical plane where the wheels 30 rotate relative to the support frame 10, and the first pedal 51 is prevented from being shielded after the second pedal 61 is pressed down.

The spring plate 70 is integrally formed, the spring plate 70 includes a reset spring plate 72 and a pressing spring plate 73, and the reset spring plate 72 and the pressing spring plate 73 are formed by processing the spring plate 70, for example, by stamping, forging, etc. The spring plate 70 has a simple structure, a low production cost, and is easily assembled into a caster. The reset elastic sheet 72 extends from the middle of the spring sheet 70 to the first end of the spring sheet 70 and extends upwards so as to abut against the lower part of the extension frame 40, the pressing elastic sheet 73 is arranged between the middle of the spring sheet 70 and the second end of the spring sheet 70 and bends and protrudes towards the wheel 30, and the pressing elastic sheet 73 presses the wheel 30 when moving downwards. Preferably, the middle of the bent protrusion of the elastic pressing piece 73 is provided with a notch 74, so that the edge of the notch 74 can better clamp the wheel 30 when being pressed down, and the wheel 30 is prevented from sliding and rotating.

The working principle of the movable caster wheel capable of braking of the embodiment is as follows: when braking is needed, for example, the first pedal 51 is pressed down, at this time, the middle of the spring leaf 70 is hinged in the middle of the extension frame 40, the brake plate 50 is hinged at the second end of the extension frame 40, the two hinge points are relatively fixed, the second end of the brake plate 50 drives the reset plate 60 to move down, the reset plate 60 drives the second end of the spring leaf 70 to move down, so that the pressing elastic piece 73 can abut against the wheel 30, rotation of the wheel 30 in a vertical plane is avoided, meanwhile, the first end of the spring leaf 70 moves up, the clamping portion 71 is matched with the convex tooth 26, rotation of the wheel 30 in a horizontal plane is avoided, when the projections of the hinge positions of the brake plate 50 and the extension frame 40, the hinge positions of the brake plate 50 and the reset plate 60, and the hinge positions of the reset plate 60 and the spring leaf 70 at one side of the wheel 30 are collinear, the brake plate 50. When the brake needs to be released, the second pedal 61 is pressed down, for example, the three hinged parts are not collinear, the hinged part of the brake plate 50 and the reset plate 60 moves upwards relatively, under the action of the reset elastic sheet 72, the first end of the spring sheet 70 moves downwards, the convex teeth 26 are separated from the clamping part 71, the second end of the spring sheet 70 moves upwards and is separated from the wheel 30, and the brake plate 50 and the reset plate 60 are restored.

Finally, it should be emphasized that the above-described embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a movable castor that can brake, includes support frame, carousel and wheel, the carousel can be in horizontal plane swivelling joint the upper end of support frame, the wheel can be in vertical in-plane swivelling joint the support frame lower extreme, its characterized in that movable castor that can brake still includes:

the first end of the extension frame is connected with the support frame;

the first end of the brake plate is hinged to the second end of the extension frame, the first end of the reset plate is hinged to the second end of the brake plate, and the brake plate comprises a first pedal extending outwards from the second end of the brake plate;

the spring piece is integrally formed, the middle of the spring piece is hinged between the first end of the extension frame and the second end of the extension frame, and the first end of the spring piece and the second end of the spring piece are respectively positioned on two sides of the middle of the spring piece; the first end of the spring piece is provided with a clamping part, the lower end of the rotary disc is provided with a convex tooth, and the clamping part is matched with the convex tooth when moving upwards; the second end of the spring piece is hinged to the second end of the reset plate, the reset plate comprises a second pedal extending outwards from the second end of the reset plate, and the second pedal and the first pedal are arranged in a staggered mode; the spring piece comprises a reset elastic piece and a pressing elastic piece, the reset elastic piece is arranged between the middle of the spring piece and the first end of the spring piece and extends upwards to abut against the lower portion of the extension frame, the pressing elastic piece is arranged between the middle of the spring piece and the second end of the spring piece and bends and protrudes towards the wheel, and the pressing elastic piece abuts against the wheel when moving downwards.

2. The caster with brakes according to claim 1, wherein:

the reset elastic sheet and the abutting elastic sheet are processed by the spring sheet body.

3. The caster with brakes according to claim 1, wherein:

and a notch is arranged in the middle of the bending bulge of the abutting elastic sheet.

4. A braked movable castor according to any one of claims 1 to 3, wherein:

the support frame comprises side frames arranged on two sides of the wheels;

the extension frame comprises two connecting blocks and an extension block connected with the two connecting blocks, the two connecting blocks are respectively connected with the two side frames, and the extension block extends above the wheels.

5. A braked movable castor according to claim 4, characterized in that:

the side frame comprises a vertical connecting part, and the connecting block is vertically arranged;

the connecting block is fixed on the connecting part through screws.

6. A braked movable castor according to claim 5, characterized in that:

the screws are M6 screws.

7. A braked movable castor according to claim 4, characterized in that:

the support frame also comprises a bracket connected with the upper ends of the two side frames, and an opening is formed in the center of the bracket;

the turnplate comprises an upper turnplate and a lower turnplate, and the convex teeth are arranged below the lower turnplate and are linked with the lower turnplate; the upper rotary table and the lower rotary table clamp the bracket up and down respectively, and the upper rotary table and the lower rotary table are fastened and connected at the opening through rivets; balls are arranged between the upper rotary table and the bracket and between the lower rotary table and the bracket.

8. The caster with brakes according to claim 7, wherein:

a protective sleeve is arranged on the outer side between the upper turntable and the bracket;

the rotary table further comprises a fluted disc, the convex teeth are arranged below the fluted disc, and the fluted disc is also fixedly connected below the lower rotary table through the rivets.

9. A braked movable castor according to any one of claims 1 to 3, wherein:

the joint portion includes a plurality of joint holes, and is a plurality of the joint hole is the arc and distributes.