Trundle with brake

Abstract

The utility model discloses a trundle with a brake, which comprises a connecting plate, a universal wheel base, wheel bodies and a rotating shaft, the connecting plate is rotatably connected with the universal wheel base, a cavity is arranged in the universal wheel base, the rotating shaft penetrates through the cavity and is arranged on the universal wheel base, a plurality of wheel bodies coaxial with the rotating shaft are arranged on the rotating shaft, and the trundle further comprises a brake rod. The brake rod is rotatably arranged on the universal wheel base, at least one brake part is arranged on the brake rod, when the brake rod rotates to drive the brake part to rotate, the brake part can extrude the wheel body, and the wheel body abuts against and is clamped with the inner wall of the cavity of the universal wheel base. According to the utility model, the brake rod is rotated by 90 degrees to drive the brake part to rotate, and the brake part can extrude the wheel body, so that the wheel body is clamped with the inner wall of the cavity of the universal wheel base or the side wall of the partition, and the brake operation is completed. When the brake needs to be released, the brake rod is continuously rotated by 90 degrees to drive the brake part to rotate, at the moment, the brake part leaves the wheel body, the brake releasing operation is completed, and the wheel body can roll at will.

Description

Technical Field

[0001] The utility model relates to a caster, in particular to a caster with a brake. Background Art

[0002] Universal casters are a common mechanical accessory, which are mostly used to be installed at the bottom of the device to facilitate the movement of the device. They are widely used in instruments, equipment, carts, furniture and other objects that need to be moved frequently. When a fixed position is required, the existing casters use a method of screwing a threaded top rod to clamp the main wheel body to achieve braking. When braking and releasing the brake, multiple turns are required, which is inconvenient to operate. Utility Model Content

[0003] In view of the deficiencies in the existing technology, the utility model aims to provide a caster with a brake.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a caster with brake, including a connecting plate, a universal wheel base, a wheel body, and a rotating shaft. The connecting plate is rotatably connected to the universal wheel base, a cavity is provided in the universal wheel base, the rotating shaft passes through the cavity and is arranged on the universal wheel base, a plurality of wheel bodies coaxial therewith are provided on the rotating shaft, the wheel body is arranged in the cavity, and also includes a brake rod, the brake rod is rotatably arranged on the universal wheel base, and at least one brake part is provided on the brake rod. When the brake rod rotates to drive the brake part to rotate, the brake part can squeeze the wheel body, and the wheel body is abutted and clamped against the inner wall of the cavity of the universal wheel base.

[0005] Preferably, rotating paddles are provided at both ends of the brake lever.

[0006] Preferably, two anti-rotation protrusions distributed on the left and right sides of the brake rod and used to limit the rotation of the rotating paddle are provided on the outer wall of the universal wheel base near the rotating paddle.

[0007] Preferably, the connecting plate is clamped with the universal wheel base, and a first circular groove is provided on one end surface of the connecting plate close to the universal wheel base. Correspondingly, a second circular groove is provided on one end surface of the universal wheel base close to the connecting plate. The first circular groove and the second circular groove cooperate to form an active cavity, and a ball is provided in the active cavity.

[0008] Preferably, the rotating shaft is clamped to the lower end surface of the universal wheel base, the lower end surface of the universal wheel base is provided with a first groove clamped to the rotating shaft, the rotating shaft can rotate relative to the universal wheel base, and the plurality of wheel bodies are fixedly connected to the rotating shaft.

[0009] Preferably, a bearing is provided in the wheel body.

[0010] Preferably, the rotating shaft is fixedly connected to the universal wheel base, and bearings are arranged in the plurality of wheel bodies arranged on the rotating shaft.

[0011] Preferably, a partition is provided between two adjacent wheel bodies in the cavity.

[0012] Preferably, a second groove is provided on the lower end surface of the barrier.

[0013] The beneficial effects of the utility model are as follows: the utility model only needs to rotate the brake lever 90 degrees to drive the brake part to rotate, and the brake part can squeeze the wheel body so that the wheel body is clamped with the inner wall of the cavity of the universal wheel base or the side wall of the partition to complete the braking operation.

[0014] When the brake needs to be released, the brake lever only needs to be rotated 90 degrees to drive the brake part to rotate. At this time, the brake part leaves the wheel body, the brake release operation is completed, and the wheel body can roll freely.

[0015] The utility model has the characteristics of simple structure, convenient processing, easy assembly, convenient operation and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model when braking;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model when the brake is released;

[0019] Figure 4 This is a bottom view of the utility model when braking;

[0020] Figure 5 For along Figure 4 Section view along line AA;

[0021] Figure 6 This is a bottom view of the utility model when the brake is released;

[0022] Figure 7 This is one of the exploded schematic diagrams of the utility model;

[0023] Figure 8 This is the second exploded schematic diagram of the present utility model. DETAILED DESCRIPTION

[0024] Embodiment 1, as Figure 1-Figure 8As shown, a caster with brake comprises a connecting plate 1, a universal wheel base 2, a wheel body 3 and a rotating shaft 4, wherein the connecting plate 1 is rotatably connected to the universal wheel base 2, a cavity 5 is provided in the universal wheel base 2, the rotating shaft 4 passes through the cavity 5 and is arranged on the universal wheel base 2, a plurality of wheel bodies 3 coaxial therewith are provided on the rotating shaft 4, the wheel body 3 is arranged in the cavity 5, and further comprises a brake rod 6, the brake rod 6 is rotatably arranged on the universal wheel base 2, at least one brake part 7 is provided on the brake rod 6, when the brake rod 6 rotates to drive the brake part 7 to rotate, the brake part 7 can squeeze the wheel body 3, and the wheel body 3 is abutted and clamped against the inner wall of the cavity 5 of the universal wheel base 2.

[0025] In this embodiment, rotating paddles 8 are provided at both ends of the brake lever 6. The rotating paddles 8 facilitate the user to rotate the brake lever 6.

[0026] In this embodiment, two anti-rotation protrusions 9 for limiting the rotation of the rotating paddle 8 are provided on the outer wall of the universal wheel base 2 near the rotating paddle 8 and distributed on the left and right sides of the brake rod 6 .

[0027] In the above structure, the anti-rotation protrusion 9 can prevent the rotating paddle 8 from rotating automatically, thereby preventing the brake lever 6 from shaking due to the vibration or inertia generated when the caster follows the movement of the object, thereby preventing the brake part 7 from squeezing the wheel body 3 and preventing its rotation. The surface of the anti-rotation protrusion 9 is an arc surface, and when the user needs to turn the rotating paddle 8, the rotating paddle 8 can rub against the surface of the anti-rotation protrusion 9.

[0028] In this embodiment, the connecting plate 1 is clamped with the universal wheel base 2, and a first circular groove 10 is provided on one end surface of the connecting plate 1 close to the universal wheel base 2. Correspondingly, a second circular groove 11 is provided on one end surface of the universal wheel base 2 close to the connecting plate 1. The first circular groove 10 and the second circular groove 11 cooperate to form an active cavity 12, and a ball 13 is provided in the active cavity 12.

[0029] In this embodiment, the rotating shaft 4 is clamped to the lower end surface of the universal wheel base 2. The lower end surface of the universal wheel base 2 is provided with a first groove 14 clamped to the rotating shaft 4. The rotating shaft 4 can rotate relative to the universal wheel base 2, and the plurality of wheel bodies 3 are fixedly connected to the rotating shaft 4.

[0030] In this embodiment, a spacer 15 is provided between two adjacent wheel bodies 3 in the cavity 5 .

[0031] In this embodiment, a second groove 16 is formed on the lower end surface of the barrier 15 .

[0032] The difference between the second embodiment and the first embodiment is that a bearing is provided inside the wheel body 3 .

[0033] The difference between the third embodiment and the second embodiment is that the rotating shaft 4 is fixedly connected to the universal wheel base 2.

[0034] The utility model only needs to rotate the brake lever 6 by 90 degrees to drive the brake part 7 to rotate, and the brake part 7 can squeeze the wheel body 3, so that the wheel body 3 is clamped with the inner wall of the cavity 5 of the universal wheel base 2 or the side wall of the partition 15 to complete the braking operation.

[0035] When the brake needs to be released, the brake lever 6 only needs to be rotated 90° to drive the brake part 7 to rotate. At this time, the brake part 7 leaves the wheel body 3, the brake release operation is completed, and the wheel body 3 can roll freely.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, simple changes and substitutions by ordinary technicians in this field are within the protection scope of the utility model.

Claims

1. A caster with brake, comprising a connecting plate, a universal wheel base, a wheel body, and a rotating shaft, wherein the connecting plate is rotatably connected to the universal wheel base, a cavity is provided in the universal wheel base, the rotating shaft passes through the cavity and is arranged in the universal wheel base, a plurality of coaxial wheel bodies are provided on the rotating shaft, and the wheel bodies are arranged in the cavity, wherein the character is that: It also includes a brake rod, which is rotatably arranged on the universal wheel base. The brake rod is provided with at least one brake part. When the brake rod rotates to drive the brake part to rotate, the brake part can squeeze the wheel body, and the wheel body is abutted and clamped against the inner wall of the cavity of the universal wheel base.

2. A caster with brake as claimed in claim 1, characterized in that: Rotating paddles are arranged at both ends of the brake rod.

3. A caster with brake as claimed in claim 2, characterized in that: Two anti-rotation protrusions distributed on the left and right sides of the brake rod and used for limiting the rotation of the rotating paddle are arranged on the outer wall of the universal wheel base near the rotating paddle.

4. A caster with brake according to any one of claims 1 to 3, characterized in that: The connecting plate is clamped with the universal wheel base, and a first circular groove is provided on one end face of the connecting plate close to the universal wheel base. Correspondingly, a second circular groove is provided on one end face of the universal wheel base close to the connecting plate. The first circular groove and the second circular groove cooperate to form an active cavity, and a ball is provided in the active cavity.

5. A caster with brake as claimed in claim 4, characterized in that: The rotating shaft is clamped on the lower end surface of the universal wheel base. The lower end surface of the universal wheel base is provided with a first groove clamped with the rotating shaft. The rotating shaft can rotate relative to the universal wheel base. The plurality of wheel bodies are fixedly connected to the rotating shaft.

6. A caster with brake as claimed in claim 5, characterized in that: A bearing is arranged in the wheel body.

7. A caster with brake as claimed in claim 4, characterized in that: The rotating shaft is fixedly connected to the universal wheel base, and bearings are arranged in a plurality of wheel bodies arranged on the rotating shaft.

8. A caster with brake as claimed in claim 7, characterized in that: A partition is arranged between two adjacent wheel bodies in the cavity.

9. A caster with brake as claimed in claim 8, characterized in that: The lower end surface of the barrier is provided with a second groove.

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