Double brake universal caster wheel

Abstract

The utility model discloses a double brake universal trundle, including wheel body, wheel stand and wheel shaft, wheel shaft is arranged in the middle part of wheel body, and both ends of wheel shaft are rotatably connected in wheel stand, and both sides of wheel stand top part are equipped with rotary shaft and footboard respectively, and rotary shaft is rotatably connected in wheel stand through bearing, and wheel stand is equipped with lock brake board, and lock brake board middle part is rotatably connected in wheel stand, and lock brake board one end is equipped with brake block, and brake block bottom is pasted with wheel body, and brake block top is equipped with the slot, and footboard bottom is equipped with the clamping block, and the clamping block is matched with the slot, the utility model discloses a double brake universal trundle, and lock brake board and brake block are added, and the clamping block is inserted into the slot through treading footboard, so that brake block can be pressed on the surface of wheel body, and the user controls the treading intensity of footboard, which guarantees the brake effect, avoids unlocking, and sets up the toothed disc and brake tooth, and lock brake board rotation will drive brake tooth to lift and be connected in toothed disc, realizes double brake function, that is, the movement of wheel body is locked, and wheel stand and rotary shaft are locked.

Description

Technical Field

[0001] This utility model relates to caster technology, specifically a double-brake omnidirectional caster. Background Technology

[0002] Casters are a general term that includes swivel casters, fixed casters, and swivel casters with brakes. Swivel casters, also known as universal casters, can rotate 360 ​​degrees through a rotating mechanism.

[0003] The brake pedal of existing swivel casters is usually located on one side of the outer circumference of the wheel. The user presses the brake pedal, which is fixed to the wheel surface by friction, thus achieving the purpose of locking the brake. However, with this braking method, the user's control over the pressure applied to the brake pedal varies. Often, if the pressure is too great, the pedal is difficult to lift and unlock, or if the pressure is too small, the braking effect is unstable. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a double-brake omnidirectional caster that allows users to easily control the pedal pressure, ensuring braking effectiveness while preventing the caster from becoming unrecoverable.

[0005] To achieve the above technical objectives, this utility model adopts the following technical solution: a double-brake omnidirectional caster, comprising a wheel body, a wheel frame, and a wheel axle. The wheel axle passes through the middle of the wheel body, and both ends of the wheel axle are rotatably connected to the wheel frame. The top two sides of the wheel frame are respectively provided with a rotating shaft and a pedal. The rotating shaft is vertically arranged and rotatably connected to the wheel frame through a bearing. A second connecting rod passes through the middle of the pedal and is rotatably connected to the wheel frame. A locking brake plate is provided inside the wheel frame, and the middle of the locking brake plate is rotatably connected to the wheel frame. A brake block is provided at one end of the locking brake plate, and the brake block is located below the pedal. The bottom of the brake block is in contact with the wheel body, and the top of the brake block is provided with a groove. A locking block is provided at the bottom of the pedal at the end away from the wheel frame, and the locking block engages with the groove.

[0006] Preferably, the top of the rotating shaft is provided with a threaded portion.

[0007] Preferably, a guard plate is provided in the middle of the rotating shaft, and the guard plate is located above the wheel frame.

[0008] Preferably, both ends of the bottom of the pedal are provided with several anti-slip blocks.

[0009] Preferably, the bottom of the brake block is provided with several anti-slip strips.

[0010] Preferably, the bottom end of the rotating shaft is provided with a gear plate, the gear plate is engaged with a brake tooth, the brake tooth is fixed to one end of the locking brake plate relative to the brake block, and the brake tooth is located below the gear plate.

[0011] Preferably, the locking brake plate has a first connecting rod in the middle, and a torsion spring is sleeved on the first connecting rod. One end of the torsion spring abuts against the wheel frame, and the other end of the torsion spring is fixed to the locking brake plate.

[0012] In summary, this utility model achieves the following technical effects:

[0013] This utility model of a double-brake omnidirectional caster adds a locking brake plate and a brake block. By stepping on the pedal, the brake block can be engaged in the slot, pressing the brake block against the surface of the wheel. This allows the user to control the pedal pressure, ensuring braking effect while preventing the wheel from becoming locked. Furthermore, it is equipped with a gear and brake teeth. When the locking brake plate rotates, it causes the brake teeth to lift and engage with the gear, achieving a double braking function: locking the wheel's movement and locking the wheel frame to the rotating shaft. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the double-brake universal caster of this utility model;

[0015] Figure 2 This is an exploded structural diagram of the double-brake universal caster of this utility model;

[0016] Figure 3 This is a structural schematic diagram of the double-brake universal caster of this utility model;

[0017] Figure 4 This is an exploded structural diagram of the pedal and locking brake plate of the double-brake omnidirectional caster of this utility model;

[0018] Figure 5 This is a schematic diagram of the locking brake plate of the double-brake universal caster of this utility model;

[0019] Explanation of the markings on the attached diagrams: 1. Wheel frame; 2. Wheel axle; 3. Wheel body; 4. Pedal; 5. Locking brake plate; 6. Rotating shaft; 7. Protective plate; 8. Brake block; 9. Brake tooth; 10. Torsion spring; 11. Bearing; 12. Gear disc; 13. First connecting rod; 14. Second connecting rod; 15. Slot; 16. Locking block. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] Example 1:

[0027] like Figure 1As shown in Figure 5, a double-brake omnidirectional caster includes a wheel body 3, a wheel frame 1, and a wheel axle 2. The wheel axle 2 passes through the middle of the wheel body 3, and both ends of the wheel axle 2 are rotatably connected to the wheel frame 1. The wheel frame 1 has a rotating shaft 6 and a pedal 4 on its top two sides, respectively. The rotating shaft 6 is vertically arranged and rotatably connected to the wheel frame 1 through a bearing 11. A second connecting rod 14 passes through the middle of the pedal 4 and is rotatably connected to the wheel frame 1. A locking brake plate 5 is provided inside the wheel frame 1, and the middle of the locking brake plate 5 is rotatably connected to the wheel frame 1. A brake block 8 is provided at one end of the locking brake plate 5. The brake block 8 is located below the pedal 4, and the bottom of the brake block 8 is in contact with the wheel body 3. A slot 15 is provided at the top of the brake block 8. A locking block 16 is provided at the bottom of the pedal 4 away from the wheel frame 1, and the locking block 16 engages with the slot 15.

[0028] When braking, simply press down on the pedal 4 at the end away from the wheel frame 1, and press down on the brake block 8 until the locking block 16 engages with the slot 15. This will cause the brake block 8 to press against the surface of the wheel body 3, thus locking the movement of the wheel body 3. At the same time, the brake block 8 at one end of the locking brake plate 5 will rotate downwards, causing one end of the brake tooth 9 to lift up and engage with the gear disc 12, thus achieving a dual braking function. That is, while locking the movement of the wheel body 3, the wheel frame 1 and the rotating shaft 6 are locked together. When unlocking, simply press down on the pedal 4 at the end facing the wheel frame 1. The locking block 16 will disengage from the slot 15, and the torsion spring 10 will drive the locking brake plate 5 and the pedal 4 to reset.

[0029] In this embodiment, the double-brake omnidirectional caster is equipped with a locking brake plate 5 and a brake block 8. By stepping on the pedal 4, the locking block 16 is engaged with the locking groove 15, which allows the brake block 8 to press against the surface of the wheel body 3. This makes it easy for the user to control the pressure of the pedal 4, ensuring the braking effect and preventing the wheel from being unable to unlock. In addition, a gear plate 12 and a brake tooth 9 are provided. When the locking brake plate 5 rotates, it will cause the brake tooth 9 to lift up and engage with the gear plate 12, realizing the double braking function, that is, locking the movement of the wheel body 3 and locking the wheel frame 1 and the rotating shaft 6.

[0030] The top of the rotating shaft 6 is provided with a threaded part; the threaded part allows the rotating shaft 6 to be installed at the bottom of the equipment.

[0031] The rotating shaft 6 is provided with a guard plate 7 in the middle, and the guard plate 7 is located above the wheel frame 1. The guard plate 7 can prevent foreign objects from entering the gap between the rotating shaft 6 and the wheel frame 1, and avoid damage to the rotating shaft 6 and the bearing 11.

[0032] Both ends of the bottom of the pedal 4 are provided with several anti-slip blocks; the anti-slip blocks can increase the friction between the user's foot and the pedal 4, making it easier for the user to step on it.

[0033] The bottom of the brake block 8 is provided with several anti-slip strips; the anti-slip strips can increase the friction between the brake block 8 and the surface of the wheel body 3, ensuring the braking effect.

[0034] The bottom end of the rotating shaft 6 is provided with a gear plate 12, which engages with the brake tooth 9. The brake tooth 9 is fixed to one end of the locking brake plate 5 relative to the brake block 8, and the brake tooth 9 is located below the gear plate 12. When the brake block 8 of the locking brake plate 5 rotates downward, it will cause one end of the brake tooth 9 to lift up and engage with the gear plate 12, realizing the dual braking function, namely locking the movement of the wheel body 3 and locking the wheel frame 1 and the rotating shaft 6.

[0035] The locking brake plate 5 has a first connecting rod 13 in the middle, and a torsion spring 10 is sleeved on the first connecting rod 13. One end of the torsion spring 10 abuts against the wheel frame 1, and the other end of the torsion spring 10 is fixed to the locking brake plate 5. The torsion spring 10 is a double torsion spring 10 structure, which makes the locking brake plate 5 reset more smoothly. The setting of the torsion spring 10 can make the locking brake plate 5 and the pedal 4 reset, realizing quick unlocking.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A double-brake swivel caster, comprising a wheel body, a wheel frame, and a wheel axle, wherein the wheel axle passes through the middle of the wheel body, and both ends of the wheel axle are rotatably connected to the wheel frame, characterized in that, The wheel frame has a rotating shaft and a pedal on each of its top two sides. The rotating shaft is vertically arranged and rotatably connected to the wheel frame via a bearing. A second connecting rod passes through the middle of the pedal and is rotatably connected to the wheel frame. A locking brake plate is provided inside the wheel frame and is rotatably connected to the wheel frame in the middle. A brake block is provided at one end of the locking brake plate and is located below the pedal. The bottom of the brake block is in contact with the wheel body, and a groove is provided at the top of the brake block. A locking block is provided at the bottom of the pedal at the end away from the wheel frame, and the locking block engages with the groove.

2. A double-brake swivel caster according to claim 1, characterized in that, The top of the rotating shaft is provided with a threaded section.

3. A double-brake swivel caster according to claim 1, characterized in that, A protective plate is provided in the middle of the rotating shaft, and the protective plate is located above the wheel frame.

4. A double-brake swivel caster according to claim 1, characterized in that, Several anti-slip blocks are provided at both ends of the bottom of the pedal.

5. A double-brake swivel caster according to claim 1, characterized in that, The bottom of the brake block is provided with several anti-slip strips.

6. A double-brake swivel caster according to claim 1, characterized in that, The bottom end of the rotating shaft is provided with a gear plate, which engages with a brake tooth. The brake tooth is fixed to one end of the locking brake plate relative to the brake block and is located below the gear plate.

7. A double-brake swivel caster according to claim 1, characterized in that, The locking brake plate has a first connecting rod in the middle, and a torsion spring is sleeved on the first connecting rod. One end of the torsion spring abuts against the wheel frame, and the other end of the torsion spring is fixed to the locking brake plate.

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