A type of luggage caster

Abstract

This utility model discloses a luggage caster, including a wheel frame, a wheel rotatably connected to the wheel frame, a brake ring coaxially arranged on one side of the wheel, a brake block that moves up and down relative to the wheel frame inside the brake ring, the brake block being slidably connected to the wheel frame, a limiting hole extending up and down on the wheel frame, a limiting block slidably connected within the limiting hole, the brake block being connected to the limiting block, an elastic element with one end abutting against the limiting block inside the limiting hole, the elastic element being located below the limiting block, a positioning paddle extending out of the limiting hole at the end of the limiting block facing away from the brake block, the top of the positioning paddle having a positioning groove with the slot facing upwards, a dial wheel rotatably connected to the wheel frame above the positioning paddle, a step bar extending radially on the side of the dial wheel, and a positioning protrusion for embedding into the positioning groove on the side of the dial wheel. This luggage caster features a novel structure, convenient braking operation, complete overall function, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of luggage manufacturing technology, and more specifically, it relates to a luggage caster. Background Technology

[0002] Currently, most luggage casters use manual levers or knobs for braking. Levers require bending over to operate, which is strenuous and prone to tipping over when using large luggage. Knobs are prone to wear and stripping, resulting in low operating efficiency. Some designs rely on a single spring for return, which can lead to brake slippage after spring fatigue. Improvements are needed in terms of ease of operation, structural reliability, and stability. Therefore, this utility model proposes a new type of luggage caster. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a luggage caster with a novel structure and convenient braking operation.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: This utility model relates to a luggage caster, comprising a wheel frame, on which a wheel with a horizontally arranged axis is rotatably connected. A brake ring arranged coaxially is provided on one side of the wheel. A brake block that moves vertically relative to the wheel frame is provided within the brake ring. The brake block is slidably connected to the wheel frame. A limiting hole extending vertically is provided on the wheel frame. A limiting block is slidably connected within the limiting hole. The brake block is connected to the limiting block. An elastic element with one end abutting against the limiting block is provided within the limiting hole. The elastic element is located below the limiting block. A positioning paddle extending out of the limiting hole is provided at the end of the limiting block facing away from the brake block. The top of the positioning paddle has a positioning groove with an upward-facing opening. Above the positioning paddle is a dial wheel rotatably connected to the wheel frame. A radially extending foot bar is provided on the side of the dial wheel. A positioning protrusion for embedding into the positioning groove is also provided on the side of the dial wheel. The positioning protrusion and the dial wheel are connected by an arc transition.

[0005] The present invention is further configured such that: the inner side surface of the brake ring is provided with a plurality of adjacent toothed grooves with equal included angles, and the brake block is provided with at least one toothed protrusion that matches the toothed groove, the toothed protrusion being able to be embedded into the toothed groove.

[0006] The present invention is further configured such that: the wheel frame is provided with a first gear groove and a second gear groove, and the derailleur is provided with a ball plunger that matches the first gear groove and the second gear groove, and the ball head of the ball plunger is embedded in the first gear groove or the second gear groove;

[0007] When the positioning protrusion is embedded in the positioning groove, the ball head of the ball plunger is embedded in the first position groove; when the positioning protrusion is not embedded in the positioning groove, the ball head of the ball plunger is embedded in the second position groove.

[0008] The present invention is further configured such that: the limiting block and the wheel frame are respectively provided with elastic element mounting grooves for partially embedding one end of the elastic element.

[0009] The present invention is further configured such that the elastic element is a compression spring.

[0010] In summary, this utility model has the following beneficial effects:

[0011] 1. The wheels can be released by stepping down on the pedal and braked by lifting the pedal up. No need to bend over, suitable for large suitcases and other scenarios, reducing the intensity of operation.

[0012] 2. Rigid transmission avoids wear and slippage, springs are only responsible for reset to reduce fatigue, brake blocks and brake rings mesh and lock tightly, ensuring stable braking and strong locking force. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural schematic diagram of the present invention. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0016] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0017] Example 1

[0018] See Figure 1 and Figure 2As shown, the bag caster involved in this embodiment includes a wheel frame 1, on which a wheel 2 with a horizontally arranged axis is rotatably connected. A brake ring 3, coaxially arranged, is provided on one side of the wheel 2. A brake block 4, which moves vertically relative to the wheel frame, is provided inside the brake ring 3. The brake block 4 is slidably connected to the wheel frame 1. A limiting hole 5 extending vertically is provided on the wheel frame 1. A limiting block 6 is slidably connected inside the limiting hole 5. The brake block 4 is connected to the limiting block 6. An elastic element, one end of which abuts against the limiting block, is provided inside the limiting hole 5. Component 7, the elastic component 7 is a compression spring, the elastic component 7 is located below the limiting block 6, the end of the limiting block 6 facing away from the brake block is provided with a positioning paddle 8 extending out of the limiting hole, the top of the positioning paddle 8 has a positioning groove (unmarked) with the slot facing upward, the upper part of the positioning paddle 8 is provided with a dial wheel 9 rotatably connected to the wheel frame, the side of the dial wheel 9 is provided with a pedal 10 extending radially, the side of the dial wheel 9 is also provided with a positioning protrusion 11 for embedding into the positioning groove, the positioning protrusion 11 and the dial wheel 9 are connected by an arc transition.

[0019] Furthermore, the inner side of the brake ring 3 is provided with a plurality of adjacent toothed grooves 12 with equal included angles, and the brake block 4 is provided with at least one toothed protrusion 13 that matches the toothed groove, and the toothed protrusion 13 can be embedded into the toothed groove 12.

[0020] In this embodiment, when braking wheel 2 is required, the pedal 10 is lifted, the dial wheel 9 rotates, the deformable elastic element 7 extends, the limiting block 6 moves upward, until the brake block 4 abuts against the brake ring 3 and the toothed protrusion 13 is embedded in the toothed groove 12, thus completing the braking of the wheel. When releasing the brake on wheel 2 is required, the pedal 10 is pressed down, the dial wheel 9 rotates, the positioning protrusion 11 slides into the positioning groove on the positioning paddle 8, until the limiting block 6 moves downward, the elastic element 7 deforms and shortens, until the brake block 4 separates from the brake ring 3 and the toothed protrusion 13 disengages from the toothed groove 12, thus releasing the braking of the wheel.

[0021] The toothed groove 12 and toothed protrusion 13 enhance the braking locking force and prevent slippage.

[0022] Example 2

[0023] See Figure 1 and Figure 2 As shown, the bag caster involved in this embodiment is further configured based on embodiment 1, wherein the wheel frame 1 is provided with a first gear recess 14 groove and a second gear groove 15, and the derailleur 9 is provided with a ball head plunger 16 that matches the first gear groove and the second gear groove, and the ball head of the ball head plunger 16 is embedded in the first gear groove 14 or the second gear groove 15.

[0024] When the positioning protrusion is embedded in the positioning groove, the ball head of the ball plunger is embedded in the first position groove; when the positioning protrusion is not embedded in the positioning groove, the ball head of the ball plunger is embedded in the second position groove.

[0025] In this embodiment, the first gear groove 14, the second gear groove 15, and the ball plunger 16 are used to lock the position of the dial 9 after rotation adjustment.

[0026] Example 3

[0027] See Figure 1 and Figure 2 As shown, the bag caster involved in this embodiment is further configured, based on embodiment 1, with the limiting block 6 and the wheel frame 1 respectively provided with elastic element mounting grooves (not shown) for one end of the elastic element 7 to be partially embedded.

[0028] In this embodiment, the elastic element 7 is conveniently positioned and installed by the elastic element mounting groove to prevent the elastic element 7 from falling out of the limiting hole 5.

[0029] The luggage caster involved in this utility model can release the brake by stepping down on the pedal and brake the wheel by lifting the pedal up, eliminating the need to bend over. It is suitable for large suitcases and other scenarios, reducing the intensity of operation. Furthermore, the caster adopts rigid transmission to avoid wear and stripping, and the spring is only responsible for reset to reduce fatigue. The brake block and brake ring are locked together, ensuring stable braking and strong locking force. The overall function is complete and highly practical.

[0030] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0031] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A luggage caster comprising a wheel carrier, a wheel with its axis arranged horizontally being rotatably connected to the wheel carrier, characterized in that: One side of the wheel is provided with a brake ring arranged coaxially. Inside the brake ring is a brake block that moves up and down relative to the wheel frame. The brake block is slidably connected to the wheel frame. The wheel frame is provided with a limiting hole that extends up and down. A limiting block is slidably connected in the limiting hole. The brake block is connected to the limiting block. An elastic element with one end abutting against the limiting block is provided in the limiting hole. The elastic element is located below the limiting block. The end of the limiting block facing away from the brake block is provided with a positioning paddle that extends out of the limiting hole. The top of the positioning paddle has a positioning groove with the slot facing upward. Above the positioning paddle is a dial wheel that is rotatably connected to the wheel frame. The side of the dial wheel is provided with a pedal that extends radially. The side of the dial wheel is also provided with a positioning protrusion for embedding into the positioning groove. The positioning protrusion and the dial wheel are connected by an arc transition.

2. The luggage caster according to claim 1, wherein: The inner side of the brake ring is provided with a number of adjacent toothed grooves with equal included angles, and the brake block is provided with at least one toothed protrusion that matches the toothed grooves, and the toothed protrusion can be embedded into the toothed grooves.

3. The luggage caster according to claim 1 or 2, characterized in that: The wheel frame is provided with a first gear groove and a second gear groove. The derailleur is provided with a ball plunger that matches the first gear groove and the second gear groove. The ball head of the ball plunger is embedded in the first gear groove or the second gear groove. When the positioning protrusion is embedded in the positioning groove, the ball head of the ball plunger is embedded in the first position groove; when the positioning protrusion is not embedded in the positioning groove, the ball head of the ball plunger is embedded in the second position groove.

4. The luggage caster wheel of claim 3, wherein: The limiting block and the wheel frame are respectively provided with elastic element mounting grooves for partially embedding one end of the elastic element.

5. The luggage caster wheel of claim 4, wherein: The elastic element is a compression spring.

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