A new structure brake trolley caster

Abstract

This utility model proposes a novel braked trolley caster, relating to the field of caster technology. It includes a caster body and a pedal movably connected to one side of the caster body. A rotatable connecting assembly is located above the caster body. A brake pad is movably disposed inside the caster body between the pedal and the connecting assembly. The connecting assembly includes an anti-collision ring, inside which is a bearing sleeve, and inside which is a bearing. It also includes a lower ball bearing and a screw. The outer circumference of the lower ball bearing has serrations, and the center of the bottom surface of the lower ball bearing has a groove that matches the screw. Pressing the pedal causes the brake pad to rotate around a positioning axis. When the brake pad is pressed down close to the tire, it acts as a brake, and the groove at the other end of the brake pad engages with the serrations on the outer circumference of the lower ball bearing, thus locking the caster's rotation angle. Pressing or lifting the pedal provides a dual braking effect.

Description

Technical Field

[0001] This utility model relates to the field of caster technology, and in particular to a novel braked trolley caster. Background Technology

[0002] Cart casters are wheeled components installed at the bottom of a cart to support and move equipment, combining the functions of carrying heavy loads and flexible steering.

[0003] However, the existing general trolley caster structure is a bracket ball bearing assembly steel ball structure. The disadvantages of this structure are low product precision, poor quality and high noise during use. Another general trolley caster is a bearing riveted to the bracket. The disadvantage of this structure is that there is no ball bearing and it is impossible to install a pedal spring. Both are movable and cannot achieve a braking effect. Therefore, a new structure of brake trolley caster is needed. Utility Model Content

[0004] The purpose of this invention is to provide a new type of brake trolley caster that solves the problems of slow adjustment using tools and caster loosening in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel brake trolley caster, comprising a caster body and a pedal movably connected to one side of the caster body, a rotatable connecting component above the caster body, and a brake pad movably disposed inside the caster body between the pedal and the connecting component.

[0006] Preferably, the connecting assembly includes a shock absorber ring, the shock absorber ring having a bearing sleeve inside, and the bearing sleeve having a bearing inside.

[0007] Preferably, the connecting assembly further includes a lower bead and a screw. The outer circumference of the lower bead is provided with serrations, and the bottom surface of the lower bead has a groove in the center that matches the screw.

[0008] Preferably, the brake pad has a toothed groove at one end near the lower bead plate that engages with the serrations on the outer circumference of the lower bead plate.

[0009] Preferably, the other end of the brake pad moves closer to or further away from the caster body via the pedal.

[0010] Preferably, the connecting assembly further includes a nut and a washer, with the washer positioned between the caster body and the lower ball bearing, and the screw passing through the interior of the lower ball bearing, the washer, the bearing, and the nut in sequence.

[0011] Preferably, the nut has a threaded groove that matches the screw, and the screw is used in conjunction with the nut to lock the position of the lower ball, washer and bearing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] Pressing the pedal causes the brake pads to rotate around the positioning shaft. When the brake pads are pressed down and close to the tire, they act as brakes. The grooves on the other end of the brake pads engage with the serrations on the outer circumference of the lower ball bearing, thus locking the rotation angle of the caster. Pressing or lifting the pedal achieves a dual braking effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front view of the product of this utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the caster of the present utility model;

[0016] Figure 3 This is a schematic diagram of the connection component structure of the product of this utility model;

[0017] Figure 4 This is a front view structural diagram of the brake pad and lower bead of the present invention.

[0018] Figure 5 This is a top view of the brake pads and lower ball bearing of the present invention.

[0019] In the diagram: 1. Caster body; 101. Bracket; 102. Tire; 103. Positioning shaft; 2. Pedal; 3. Connecting assembly; 301. Anti-collision ring; 302. Bearing sleeve; 303. Bearing; 304. Nut; 305. Washer; 306. Lower ball bearing; 307. Screw; 4. Brake pad. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model relates to a novel structure of braked trolley caster, such as... Figure 1-5As shown, the system includes a caster body 1 and a movable pedal 2 located at one end of the caster body 1. A connecting assembly 3 is located above the caster body 1. A brake pad 4 is movably disposed inside the caster body 1 between the pedal 2 and the connecting assembly 3. By pressing the pedal 2, one end of the brake pad 4 is pressed tightly against the top of the caster body 1 to achieve the braking function. The other end of the brake pad 4 cooperates with the connecting assembly 3 to lock the direction of the caster. To prevent the pedal 2 from loosening after being pressed, a locking component is provided at the connection between the pedal 2 and the caster body 1. The locking component is not limited and can be of the mechanical engagement type, one-way stop type, or threaded clamping type. It mainly prevents the pedal 2 from loosening after being pressed and ensures the normal operation of the protected components.

[0022] Among them, such as Figure 2 As shown, the caster body 1 includes a bracket 101, a tire 102, and a positioning shaft 103. The cross-section of the bracket 101 is U-shaped. The tire 102 is rotatably mounted inside the U-shape of the bracket 101. The positioning shaft 103, located above the tire 102, passes through the side wall of the bracket 101. The brake pad 4 is sleeved on the outer wall of the positioning shaft 103. By pressing one end of the brake pad 4 with the pedal 2, a lever principle is formed by the positioning shaft 103, causing one end of the brake pad 4 to rise and the other end to fall.

[0023] Among them, such as Figure 3 As shown, the connecting component 3 includes a crash ring 301, a bearing sleeve 302, a bearing 303, a nut 304, a washer 305, a lower bead 306, and a screw 307. The inner wall of the crash ring 301 is fitted with the bearing sleeve 302. The crash ring 301 and the bearing sleeve 302 are located on the top surface of the caster body 1. The crash ring 301 and the bearing sleeve 302 are fixed to the top surface of the caster body 1 by welding technology, which plays a fixing role. The inner wall of the bearing sleeve 302 is fixedly connected to the bearing 303. The bottom of the bearing 303 is provided with a washer 305 and a lower bead 306 located at the bottom of the caster body 1. The centers of the bearing 303, the washer 305, and the lower bead 306 are located on the same axis. The screw 307 passes through the center of the lower bead 306, the washer 305, and the bearing 303 in sequence, locking them together. It is then used in conjunction with the nut 304 to play a fixing role. The nut 304 has a threaded groove that matches the screw 307.

[0024] Among them, such as Figure 5 As shown, the outer circle of the lower ball bearing 306 is provided with serrations. The brake pad 4 is provided with a toothed groove at one end near the lower ball bearing 306 to cooperate with the lower ball bearing 306. When the brake pad 4 is pressed down at one end near the pedal 2 and abuts against the caster body 1 to play a braking role, the other end of the brake pad 4 is engaged with the lower ball bearing 306 to lock the rotation direction of the caster and play a double braking role. The bottom surface of the lower ball bearing 306 is provided with a groove that matches the screw 307. The groove of the lower ball bearing 306 is hexagonal.

[0025] In practical use: Pressing the pedal 2 causes the brake pad 4 to rotate around the positioning shaft 103. When the brake pad 4 is pressed down and close to the tire 102, it plays a braking role. The groove on the other end of the brake pad 4 engages with the sawtooth on the outer circle of the lower ball bearing 306, thereby locking the rotation angle of the caster. Pressing or lifting the pedal 2 achieves a double braking effect.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel braked trolley caster, comprising a caster body (1) and a pedal (2) movably connected to one side of the caster body (1), characterized in that: The caster body (1) is provided with a rotatable connecting component (3) on its upper part, and a brake pad (4) is movably provided inside the caster body (1) between the pedal (2) and the connecting component (3).

2. The novel brake trolley caster according to claim 1, characterized in that: The connecting component (3) includes a collision ring (301), a bearing sleeve (302) is provided inside the collision ring (301), and a bearing (303) is provided inside the bearing sleeve (302).

3. The novel brake trolley caster according to claim 2, characterized in that: The connecting component (3) also includes a lower bead plate (306) and a screw (307). The outer circle of the lower bead plate (306) is provided with serrations, and the bottom surface of the lower bead plate (306) is provided with a groove that matches the screw (307).

4. The novel brake trolley caster according to claim 3, characterized in that: The brake pad (4) has a toothed groove at one end near the lower bead (306) that engages with the outer serrations of the lower bead (306).

5. The novel brake trolley caster according to claim 3, characterized in that: The other end of the brake pad (4) moves closer to or further away from the caster body (1) via the pedal (2).

6. The new structure of brake dolly caster according to claim 2, characterized in that: The connecting assembly (3) also includes a nut (304) and a washer (305). The washer (305) is located between the caster body (1) and the lower ball bearing (306). The screw (307) passes through the interior of the lower ball bearing (306), the washer (305), the bearing (303), and the nut (304) in sequence.

7. The novel brake trolley caster according to claim 6, characterized in that: The nut (304) has a threaded groove that matches the screw (307). The screw (307) is used in conjunction with the nut (304) to lock the positions of the lower bead (306), washer (305) and bearing (303).

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