Wheel quick dismounting device of cart

Abstract

The utility model discloses a wheel quick-release device of a cart, which comprises a mounting pipe fitting arranged on a frame of the cart, and a pre-set opening is formed on the outer wall of the mounting pipe fitting and extends to the inner space of the mounting pipe fitting; an inserting rod is arranged at the top of the mounting bracket, and the inserting rod can extend into the internal space from one end of the mounting pipe fitting; the walking wheels are rotationally mounted on the mounting bracket; the locking button is located in the inner space of the mounting pipe fitting, the locking button comprises a button part, the button part extends into the outer portion of the inner space from the preset opening, the locking button further comprises a limiting part, and the limiting part is located in the inner space of the mounting pipe fitting. And the locking button can move relative to the mounting pipe fitting to reach the first position and the second position. According to the cart, the use convenience of the cart can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor products, in particular to a quick-release device for the wheels of a trolley. Background Art

[0002] As an outdoor product, the main function of an outdoor trolley is to store other outdoor products. To make the trolley easy to use, its characteristic is that the overall frame can be folded, and wheels are installed on the frame of the trolley. However, in the prior art, the wheels and the frame cannot be disassembled. Since the wheels cannot be disassembled, they cannot be repaired and replaced after being damaged. In addition, since the wheels are still connected to the frame after the frame is folded, it is inconvenient to store and carry the frame. Content of the Utility Model

[0003] The utility model provides a quick-release device for the wheels of a trolley, which can improve the usability of the trolley.

[0004] In order to solve the above technical problems, the utility model provides a quick-release device for the wheels of a trolley, comprising:

[0005] An installation pipe fitting, which is arranged on the frame of the trolley. A preset opening is formed on the outer wall of the installation pipe fitting, and the preset opening extends into the internal space of the installation pipe fitting;

[0006] An installation bracket, a inserting rod is arranged at the top of the installation bracket, and the inserting rod can extend from one end of the installation pipe fitting into the internal space;

[0007] A traveling wheel, which is rotatably installed on the installation bracket;

[0008] A locking button, which is located in the internal space of the installation pipe fitting. The locking button comprises a button part, and the button part extends from the preset opening to the outside of the internal space. The locking button further comprises a limiting part. The locking button can move relative to the installation pipe fitting to reach a first position and a second position. When the locking button reaches the first position, the limiting part is locked and connected with the inserting rod so that the inserting rod is locked and positioned in the internal space. When the locking button reaches the second position, the limiting part is separated from the inserting rod to release the locking state of the inserting rod so that the inserting rod can be separated from the internal space

[0009] Preferably, as the above technical solution, the wheel quick-release device of the trolley further includes a mounting component. The mounting component is inserted into the internal space of the mounting pipe fitting from one end of the mounting pipe fitting. An insertion hole is formed on the mounting component. The extending direction of the insertion hole is the same as that of the internal space. The insertion rod is inserted into the insertion hole. The locking button is movably mounted on the mounting component. The size and shape of the insertion hole correspond to those of the insertion rod.

[0010] Preferably, as the above technical solution, the limiting part is a limiting piece. A limiting hole is formed on the limiting piece. When the locking button is in the second position state, the center of the limiting hole overlaps with the center of the insertion hole relatively. When the locking button is in the first position state, the center of the limiting hole deviates from the center of the insertion hole relatively. The upper end of the insertion rod extends into the limiting hole.

[0011] Preferably, as the above technical solution, a limiting groove is correspondingly arranged on the insertion rod corresponding to the limiting piece. When the locking button is in the first position state, the inner side of the limiting piece is arranged in the limiting groove. When the locking button is in the second position state, the limiting piece disengages from the limiting groove.

[0012] Preferably, as the above technical solution, the limiting groove is an annular groove formed on the outer wall of the insertion rod.

[0013] Preferably, as the above technical solution, an arc transition surface is formed on the lower surface of the limiting piece and near the limiting hole.

[0014] Preferably, as the above technical solution, the wheel quick-release device of the trolley further includes an elastic component. The elastic component is connected to the locking button. The elastic component elastically acts on the locking button in a preset direction. The preset direction is the direction in which the button part extends out of the preset opening.

[0015] Preferably, as the above technical solution, the elastic component is a spring.

[0016] Preferably, as the above technical solution, a convex block is arranged at one end of the locking button away from the button part. One end of the spring is sleeved on the convex block.

[0017] Preferably, as the above technical solution, a mounting space is formed on the mounting component. The mounting space is communicated with the insertion hole and the extending direction of the mounting space is perpendicular to the extending direction of the insertion hole. The locking button is movably arranged in the mounting space. The limiting hole is an oval hole.

[0018] A quick-release device for the wheels of a trolley provided by the present utility model includes a mounting pipe fitting, a mounting bracket, a walking wheel, and a locking button. The mounting pipe fitting is arranged on the frame of the trolley. The walking wheel is rotatably mounted on the mounting bracket. An insertion rod is provided on the mounting bracket. The insertion rod can be inserted into the internal space of the mounting pipe fitting through the lower opening of the mounting pipe fitting. The insertion rod is locked and positioned in the internal space of the mounting pipe fitting by the locking button, thereby mounting the mounting bracket on the frame of the trolley. Pressing the locking button can release the locking state, and thus the mounting bracket can be pulled off from the mounting pipe fitting. The walking wheel can be disassembled, which improves the convenience of using the trolley. In addition, the installation and disassembly of the walking wheel are very convenient.

[0019] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically describes the embodiments of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shows a schematic structural diagram of a quick-release device for the wheels of a trolley in this embodiment;

[0021] Figure 2 Shows a schematic connection structure diagram of the mounting bracket and the mounting component in this embodiment;

[0022] Figure 3 Shows a schematic installation structure diagram of the mounting bracket and the walking wheel in this embodiment;

[0023] Figure 4 Shows a schematic connection structure diagram of the locking button and the elastic component in this embodiment;

[0024] Figure 5 Shows a three-dimensional structural diagram of the mounting component in this embodiment;

[0025] Figure 6 Shows a three-dimensional structural diagram of the mounting bracket in this embodiment;

[0026] In the figure: 10, mounting pipe fitting; 20, mounting bracket; 30, walking wheel; 40, mounting component; 50, locking button; 60, elastic component; 101, preset opening; 201, insertion rod; 202, limiting groove; 401, insertion hole; 402, installation space; 501, button part; 502, limiting part; 503, limiting hole; 504, arc transition surface; 505, convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, features, and advantages of the present utility model more apparent and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

[0028] See Figures 1 to 6 As shown, the embodiment of the present utility model provides a quick-release device for the wheels of a trolley, including:

[0029] The installation pipe fitting 10 is arranged on the frame of the trolley. A preset opening 101 is formed on the outer wall of the installation pipe fitting 10, and the preset opening 101 extends into the internal space of the installation pipe fitting 10;

[0030] The installation bracket 20 has an insertion rod 201 provided at the top. The insertion rod 201 can extend from one end of the installation pipe fitting 10 into the internal space;

[0031] The traveling wheel 30 is rotatably installed on the installation bracket 20;

[0032] The locking button 50 is located in the internal space of the installation pipe fitting 10. The locking button 50 includes a button portion 501. The button portion 501 extends from the preset opening 101 into the outside of the internal space. The locking button 50 further includes a limiting portion 502. The locking button 50 can move relative to the installation pipe fitting 10 to reach a first position and a second position. When the locking button 50 reaches the first position, the limiting portion 502 is locked and connected to the insertion rod 201 so that the insertion rod 201 is locked and positioned in the internal space. When the locking button 50 reaches the second position, the limiting portion 502 is disengaged from the insertion rod 201 to release the locking state of the insertion rod 201 so that the insertion rod 201 can be disengaged from the internal space.

[0033] A quick-release device for the wheels of a trolley provided in this embodiment includes an installation pipe fitting 10, an installation bracket 20, a traveling wheel 30, and a locking button 50. The installation pipe fitting 10 is arranged on the frame of the trolley. The traveling wheel 30 is rotatably installed on the installation bracket 20. An insertion rod 201 is provided on the installation bracket 20. The insertion rod 201 can be inserted into the internal space of the installation pipe fitting 10 from the lower opening of the installation pipe fitting 10. It locks and positions the insertion rod 201 in the internal space of the installation pipe fitting 10 through the locking button 50 to install the installation bracket 20 on the frame of the trolley. Pressing the locking button 50 can release the locking state, so that the installation bracket 20 can be pulled off from the installation pipe fitting 10. Its traveling wheel 30 can be disassembled, improving the convenience of using the trolley. In addition, the installation and disassembly of its traveling wheel 30 are very convenient.

[0034] In a further implementable manner of this embodiment, the wheel quick-release device of the trolley further includes a mounting member 40. The mounting member 40 is inserted into the internal space of the mounting pipe fitting 10 from one end of the mounting pipe fitting 10. An insertion hole 401 is formed on the mounting member 40. The extending direction of the insertion hole 401 is the same as the extending direction of the internal space. The insertion rod 201 is inserted into the insertion hole 401. The locking button 50 is movably mounted on the mounting member 40. The size and shape of the insertion hole 401 correspond to those of the insertion rod 201.

[0035] In a further implementable manner of this embodiment, the limiting portion 502 is a limiting piece. A limiting hole 503 is formed on the limiting piece. When the locking button 50 is in the second position state, the center of the limiting hole 503 overlaps with the center of the insertion hole 401 relatively. When the locking button 50 is in the first position state, the center of the limiting hole 503 deviates from the center of the insertion hole 401 relatively. The upper end of the insertion rod 201 extends into the limiting hole 503.

[0036] In a further implementable manner of this embodiment, a limiting groove 202 is correspondingly arranged on the insertion rod 201 corresponding to the limiting piece. When the locking button 50 is in the first position state, the inner side of the limiting piece is arranged in the limiting groove 202. When the locking button 50 is in the second position state, the limiting piece disengages from the limiting groove 202.

[0037] In a further implementable manner of this embodiment, the limiting groove 202 is an annular groove formed on the outer wall of the insertion rod 201.

[0038] The locking structure in this embodiment is not only convenient to operate, but also the locking structure is stable, effectively preventing the walking wheels from detaching during use.

[0039] In a further implementable manner of this embodiment, an arc transition surface 504 is formed on the lower surface of the limiting piece and near the limiting hole 503.

[0040] The arc transition surface 504 in this embodiment can facilitate the insertion of the insertion rod 201 into the limiting hole 503.

[0041] In a further implementable manner of this embodiment, the wheel quick-release device of the trolley further includes an elastic member 60. The elastic member 60 is connected to the locking button 50. The elastic member 60 elastically acts on the locking button 50 in a preset direction. The preset direction is the direction in which the button portion 501 extends out of the preset opening 101.

[0042] In a further implementable manner of this embodiment, the elastic member 60 is a spring.

[0043] In a further implementable manner of this embodiment, a convex block 505 is provided at one end of the locking button 50 away from the button portion 501, and one end of the spring is sleeved on the convex block 505.

[0044] In a further implementable manner of this embodiment, an installation space 402 is formed on the installation component 40. The installation space 402 communicates with the insertion hole 401, and the extending direction of the installation space 402 is perpendicular to the extending direction of the insertion hole 401. The locking button 50 is movably arranged in the installation space 402, and the limiting hole 503 is an oval hole.

[0045] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0046] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0047] As described above, the above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present utility model, and all should be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A quick-release device for the wheels of a trolley, characterized in that, Comprising: An installation pipe fitting, arranged on the frame of the trolley, a preset opening is formed on the outer wall of the installation pipe fitting, and the preset opening extends to the internal space of the installation pipe fitting; An installation bracket, a plugging rod is arranged at the top of the installation bracket, and the plugging rod can extend from one end of the installation pipe fitting into the internal space; A walking wheel, rotatably installed on the installation bracket; A locking button, the locking button is located in the internal space of the installation pipe fitting, the locking button includes a button part, the button part extends from the preset opening to the outside of the internal space, the locking button further includes a limiting part, the locking button can move relative to the installation pipe fitting to reach a first position and a second position, when the locking button reaches the first position, the limiting part is locked and connected with the plugging rod so that the plugging rod is locked and positioned in the internal space, when the locking button reaches the second position, the limiting part is separated from the plugging rod to release the locking state of the plugging rod so that the plugging rod can be separated from the internal space.

2. The quick-release device for the wheels of the trolley according to claim 1, characterized in that, The wheel quick-release device of the trolley further includes an installation component, the installation component is inserted into the internal space of the installation pipe fitting from one end of the installation pipe fitting, an insertion hole is formed on the installation component, the extending direction of the insertion hole is the same as the extending direction of the internal space, the plugging rod is inserted into the insertion hole, the locking button is movably installed on the installation component, and the size and shape of the insertion hole correspond to the plugging rod.

3. The quick-release device for the wheels of the trolley according to claim 2, characterized in that, The limiting part is a limiting piece, a limiting hole is formed on the limiting piece, when the locking button is in the second position state, the center of the limiting hole overlaps with the center of the insertion hole relatively, when the locking button is in the first position state, the center of the limiting hole is relatively deviated from the center of the insertion hole, and the upper end of the plugging rod extends into the limiting hole.

4. The quick-release device for the wheels of the trolley according to claim 3, characterized in that, A limiting groove is correspondingly arranged on the plugging rod corresponding to the limiting piece, when the locking button is in the first position state, the inner side of the limiting piece is arranged in the limiting groove, and when the locking button is in the second position state, the limiting piece is separated from the limiting groove.

5. The quick-release device for the wheels of the trolley according to claim 4, characterized in that, The limiting groove is an annular groove formed on the outer wall of the plugging rod.

6. The quick-release device for the wheels of the trolley according to claim 3, characterized in that, An arc transition surface is formed on the lower surface of the limiting piece and close to the limiting hole.

7. The wheel quick-release device of a trolley according to any one of claims 1 to 6, characterized in that, The wheel quick-release device of the trolley further includes an elastic component, the elastic component is connected with the locking button, the elastic component elastically acts on the locking button in a preset direction, and the preset direction is the direction in which the button part extends out of the preset opening.

8. The wheel quick-release device of the trolley according to claim 7, characterized in that, The elastic component is a spring.

9. The quick-release device for the wheels of the trolley according to claim 8, characterized in that, A convex block is arranged at one end of the locking button far away from the button part, and one end of the spring is sleeved on the convex block.

10. The quick-release device for the wheels of the trolley according to claim 3, characterized in that, An installation space is formed on the installation component, the installation space is communicated with the insertion hole and the extending direction of the installation space is perpendicular to the extending direction of the insertion hole, the locking button is movably arranged in the installation space, and the limiting hole is an elliptical hole.

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