Folding wheel convenient to operate and capable of being quickly braked

Abstract

The folding wheel convenient to operate and capable of braking rapidly comprises a wheel box and a universal wheel, one side of the upper end of a wheel frame of the universal wheel is hinged to the wheel box through a shaft seat, a second spring bolt connected with the wheel box is arranged on the other side of the upper end of the wheel frame, a first spring bolt is arranged on the side, provided with the shaft seat, of the wheel frame, a gear set is installed in the wheel box, and the gear set is connected with the universal wheel. Two gears of the gear set are meshed with the first rack and the second rack respectively, one end of the first rack is inserted into the first spring, the other end of the first rack is arranged to be of a conical structure, one end of the second rack is inserted into the second spring, and the other end of the second rack is also arranged to be of a conical structure. A handle connected with the gear set is arranged outside the wheel box, and a safety hole where a safety pin is inserted is further formed in the wheel box. The folding wheel convenient to operate and capable of being quickly braked has the advantages of being simple in structure, convenient to operate and high in stability, and the labor time cost can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of folding wheels for packaging box support vehicles, and more particularly to a convenient and quick-braking folding wheel for large packaging box support vehicles. Background Technology

[0002] Early packaging boxes typically used a method for loading and unloading products: a guide rail was placed at the box opening, flush with the internal guide rails. An internal support trolley was then pulled to the box opening, and guided by external guide rails, the trolley was pushed or pulled to the external guide rails, allowing the product to load or unload. Most current packaging boxes are equipped with folding wheels, eliminating the need for external guide rails. The folding wheels allow for quick loading and unloading. However, existing folding wheel mechanisms are complex, space-consuming, cumbersome to operate, require two people, and are inefficient. Utility Model Content

[0003] The purpose of this invention is to provide a convenient and quick-closing folding wheel that allows users to open and close the folding wheel easily and conveniently, and also enables self-locking and braking functions.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A convenient and quick-braking folding wheel includes a wheel box and a swivel wheel. One side of the upper end of the swivel wheel's frame is hinged to the wheel box via a bearing seat. The other side of the upper end of the wheel box has a locking tongue two connected to the wheel box. A locking tongue one is located on the side of the wheel box with the bearing seat. The wheel box housing has insertion holes for locking tongue one and locking tongue two. A gear set is installed inside the wheel box. The two gears of the gear set mesh with rack one and rack two, respectively. One end of rack one is inserted into spring one, and the other end of rack one is tapered. One end of rack two is inserted into spring two, and the other end of rack two is also tapered. A handle connected to the gear set is located on the outside of the wheel box. The wheel box also has a safety hole for inserting a safety pin, which restricts the rotation of the handle after insertion.

[0006] Furthermore, the wheel frame is equipped with a foot brake mechanism, which is located on the side where the locking tongue is located.

[0007] Furthermore, the foot brake mechanism includes a mounting base and a brake block. The mounting base is fixedly connected to the wheel frame, and the brake block is hinged to the mounting base. A brake pad is provided on the side of the brake block near the swivel wheel.

[0008] In summary, the present invention has the following beneficial effects: the convenient and quick-braking folding wheel provided by the present invention has the advantages of simple structure, convenient operation and high stability, which can greatly reduce labor time costs. Attached Figure Description

[0009] Figure 1 This is a structural schematic diagram of the folding wheel of this utility model;

[0010] Figure 2 This is a schematic diagram of the mechanism with the folding wheels in their folded state;

[0011] Figure 3 This is a schematic diagram of the internal structure of the wheel box.

[0012] In the diagram, 1-1 is the handle; 1-2 is the axle seat; 1-3 is the locking tongue one; 1-4 is the wheel box; 1-5 is the safety pin; 1-6 is the foot brake mechanism; 1-7 is the caster wheel; 1-8 is the locking tongue two; 2-1 is the rack one; 2-2 is the spring one; 2-3 is the housing; 2-4 is the gear set; 2-5 is the rack two; and 2-6 is the spring two. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0014] like Figure 1-3 As shown, a convenient and quickly brakeable folding wheel includes a wheel box 1-4 and a universal wheel 1-7. One side of the upper end of the wheel frame of the universal wheel 1-7 is hinged to the wheel box 1-4 via a bearing 1-2. The other side of the upper end of the wheel frame is provided with a locking tongue 1-8 connected to the wheel box 1-4. A locking tongue 1-3 is provided on the side of the wheel frame where the bearing 1-2 is located. The housing 2-3 of the wheel box 1-4 has insertion holes for the locking tongue 1-3 and the locking tongue 1-8. A gear set 2-4 is installed inside the wheel box 1-4. Two gears mesh with rack 1 2-1 and rack 2 2-5 respectively. One end of rack 1 2-1 is inserted into spring 1 2-2, and the other end of rack 1 2-1 is set into a conical structure. One end of rack 2 2-5 is inserted into spring 2 2-6, and the other end of rack 2 2-5 is also set into a conical structure. The outside of the wheel box 1-4 is provided with a handle 1-1 connected to the gear set 2-4. The wheel box 1-4 is also provided with a safety hole for inserting a safety pin 1-5. After the safety pin 1-5 is inserted into the safety hole, it restricts the rotation of the handle 1-1.

[0015] Furthermore, the wheel frame is provided with a foot brake mechanism 1-6, which is located on the side where the locking tongue 1-8 is located.

[0016] Furthermore, the foot brake mechanism 1-6 includes a mounting base and a brake block. The mounting base is fixedly connected to the wheel frame, and the brake block is hinged to the mounting base. A brake pad is provided on the side of the brake block near the swivel wheel 1-7. Preferably, the foot brake mechanism 1-6 can also be selected from similar products on the market according to actual needs.

[0017] The procedure for retracting the caster wheel is as follows: Remove the safety pin 1-5, release the foot brake mechanism 1-6, and rotate the handle 1-1 counterclockwise. Gear set 2-4 drives rack 2-5, thus disengaging the locking tongue 1-8. Hold the caster wheel 1-7 and rotate it around the axle seat 1-2. Insert the locking tongue 1-3 into the wheel box 1-4. When it contacts rack 2-1, the elastic contraction of spring 2-2 causes rack 2-1 to retract downwards, fully engaging the locking tongue 1-3 with the tapered end of rack 2-1, thus retracting the caster wheel 1-7. After retracting the caster wheel, insert the safety pin 1-5.

[0018] The procedure for lowering the caster wheel is as follows: Remove the safety pin 1-5, rotate the handle 1-1 counterclockwise, and the gear set 2-4 drives the rack 2-1 to move, thereby releasing the locking tongue 1-3. The caster wheel 1-7 hangs down naturally under the action of gravity. Hold the caster wheel 1-7 and rotate it around the axle seat 1-2. Insert the locking tongue 21-8 into the wheel box 1-4. When it contacts the rack 2-5, under the elastic contraction of the spring 2-6, the rack 2-5 retracts backward, and the locking tongue 1-8 and the tapered end of the rack 2-5 are fully engaged, realizing the function of lowering the caster wheel 1-7. After the caster wheel is lowered, insert the safety pin 1-5 and step on the foot brake mechanism 1-6 to realize the braking function of the folding wheel.

[0019] 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.

Claims

1. A convenient and quickly brakeable folding wheel, comprising a wheel box (1-4) and swivel wheels (1-7), characterized in that: The upper end of the caster wheel (1-7) is hinged to the wheel box (1-4) via a bearing seat (1-2) on one side of the wheel frame. The other side of the upper end of the wheel frame is provided with a locking tongue two (1-8) connected to the wheel box (1-4). The side of the wheel frame with the bearing seat (1-2) is provided with a locking tongue one (1-3). The housing (2-3) of the wheel box (1-4) is provided with insertion holes for locking tongue one (1-3) and locking tongue two (1-8). A gear set (2-4) is installed inside the wheel box (1-4). The two gears of the gear set (2-4) are respectively connected to rack one (2-1) and rack. The two (2-5) are engaged. One end of the first rack (2-1) is inserted into the first spring (2-2), and the other end of the first rack (2-1) is set into a conical structure. One end of the second rack (2-5) is inserted into the second spring (2-6), and the other end of the second rack (2-5) is also set into a conical structure. The outside of the wheel box (1-4) is provided with a handle (1-1) connected to the gear set (2-4). The wheel box (1-4) is also provided with a safety hole for inserting a safety pin (1-5). After the safety pin (1-5) is inserted into the safety hole, it restricts the rotation of the handle (1-1).

2. The convenient and quick-braking folding wheel according to claim 1, characterized in that: The wheel frame is equipped with a foot brake mechanism (1-6), which is located on the side with a locking tongue (1-8).

3. A convenient and quickly brakeable folding wheel according to claim 2, characterized in that: The foot brake mechanism (1-6) includes a mounting base and a brake block. The mounting base is fixedly connected to the wheel frame, and the brake block is hinged to the mounting base. A brake pad is provided on the side of the brake block near the swivel wheel (1-7).

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