Camping trailer wheel waterproof structure

Abstract

The invention relates to a camping trailer wheel waterproof structure which comprises a left shell, an axle and a right shell, the left shell and the right shell are mutually buckled and fixed, and a shell sealing ring is further arranged between the left shell and the right shell; the wheel comprises a left shell and a right shell, the left shell and the right shell are connected through bearings, the axle penetrates through the left shell and the right shell, the axle is rotationally connected with the left shell and the right shell through bearings, and sealing rings are further arranged between the axle and the left shell and between the axle and the right shell. The sealing performance of the whole wheel and the outside is improved, an electric driving device in the wheel can be effectively protected, six waterproof grades can be achieved on the whole, the washing requirement of the wheel can be met, the wheel can wade for 20 cm or above, and the wheel can stably run under more severe working conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of camping vehicle accessory structures, and in particular relates to a wheel waterproof structure for a camping trailer. Background Art

[0002] In the prior art, in order to facilitate people's needs to carry items during outdoor travel, tourism and camping, foldable camping vehicles have been launched on the market. With further improvements in the products, some camping vehicles are also equipped with electric drive devices, which enable the vehicle body to move with its own power. Therefore, when carrying a large number or heavy items, the tedious process of pushing and pulling the vehicle body can be avoided.

[0003] This type of camper with an electric drive device usually has the electric drive device installed on the frame at the wheel, or directly installed in the wheel. Since the working environment of the wheels is usually relatively harsh, especially when passing through muddy roads, puddles and other road conditions, the wheels are easily filled with water and stuck with mud, which affects the appearance. The wheels need to be cleaned frequently. If the wheel is not sealed enough from the outside world, water vapor, dust, dirt, etc. will enter the wheel, causing damage to the electric drive device installed in the wheel and affecting normal use. Summary of the invention

[0004] In order to solve the above technical problems, an object of the present invention is to provide a camping trailer wheel waterproof structure, which has a high waterproof grade and enables the wheel to meet the water washing requirements.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0006] A camping trailer wheel waterproof structure comprises a left shell, an axle and a right shell, wherein the left shell and the right shell are buckled and fixed to each other, and a shell sealing ring is provided between the left shell and the right shell; the axle passes through the left shell and the right shell, and the axle is rotatably connected to the left shell and the right shell respectively, and a sealing ring is provided between the axle and the left shell and the right shell.

[0007] As a preferred solution, one end of the axle is open and extends inward to form a blind hole for accommodating the power supply line. The side wall of the axle is also provided with a through hole for the power supply line to pass through, and a sealing wire sleeve is also provided at the opening.

[0008] As a preferred solution, the axle is in the shape of a hollow tube, and a through hole is provided on the side wall for the power supply line to pass through. A sealing plug is provided at one end of the axle, and a sealing wire sleeve is provided at the other end.

[0009] As a preferred solution, the housing sealing ring, sealing plug and sealing wire sleeve are all made of rubber, silicone, polytetrafluoroethylene or polyurethane.

[0010] As a preferred solution, the left shell and the right shell are snap-fitted or plugged into each other, and the shell sealing ring is arranged on the connecting surface of the left shell and the right shell.

[0011] As a preferred solution, the axle is rotatably connected to the left housing and the right housing respectively through bearings.

[0012] As a preferred solution, the left shell and the right shell are further provided with bearing chambers, the outer ring of the bearing is interference fit with the side wall of the bearing chamber, and the inner ring of the bearing is interference fit with the axle.

[0013] As a preferred solution, a mounting groove is further provided on the outer side of the bearing chamber, the outer ring of the sealing ring abuts against the side wall of the mounting groove, and the inner ring of the sealing ring abuts against the axle.

[0014] As a preferred solution, a retaining edge is provided on the outer side of the mounting groove, the diameter of the retaining edge is smaller than the outer diameter of the sealing ring, and a gap is left between the retaining edge and the axle.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a sealing ring at the connection between the axle and the body, and also provides a shell sealing ring at the connection between the two shells of the wheel, so that the sealing performance of the entire wheel and the outside world is improved, and the electric drive device in the wheel can be effectively protected. The overall waterproof level 6 can be achieved, which can meet the needs of wheel washing, and can make the wheel wade more than 20CM, and can run stably under more severe working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0018] Figure 1 It is a structural schematic diagram of the wheel of the present invention;

[0019] Figure 2 It is a schematic diagram of the exploded structure of the wheel of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the wheel of the present invention.

[0021] The accompanying drawings are marked as follows: 1. left shell; 2. sealing ring; 3. bearing; 4. sealing plug; 5. axle; 6. sealing wire sleeve; 7. shell sealing ring; 8. right shell; 9. power supply line; 10. bearing chamber. DETAILED DESCRIPTION

[0022] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0029] like Figures 1 to 3 As shown, a camping trailer wheel waterproof structure includes a left shell 1, an axle 5 and a right shell 8, wherein the left shell 1 and the right shell 8 are buckled and fixed to each other, and a shell sealing ring 7 is further provided between the left shell 1 and the right shell 8; the axle 5 passes through the left shell 1 and the right shell 8, and the axle 5 is rotatably connected to the left shell 1 and the right shell 8 respectively through bearings 3, and a sealing ring 2 is further provided between the axle 5 and the left shell 1 and the right shell 8.

[0030] The cavity formed by the left shell 1 and the right shell 8 is used to install the electric drive device. The left shell 1 and the right shell 8 are snap-fitted, plugged in or fixed to each other by bolts. The contact surfaces of the left shell 1 and the right shell 8 can be inclined surfaces, step surfaces, etc. The housing sealing ring 7 is clamped on the corresponding inclined surfaces or step surfaces to ensure the sealing of the installation of the left shell 1 and the right shell 8.

[0031] The left shell 1 and the right shell 8 are also provided with a bearing chamber 10, the outer ring of the bearing 3 is interference fit with the side wall of the bearing chamber 10, and the inner ring of the bearing 3 is interference fit with the axle 5. The arrangement of the bearings enables the axle to rotate smoothly and stably.

[0032] The outer side of the bearing chamber 10 is also provided with a mounting groove, the outer ring of the sealing ring 2 abuts against the side wall of the mounting groove, and the inner ring of the sealing ring 2 abuts against the axle 5. A retaining edge is provided on the outer side of the mounting groove, the diameter of the retaining edge is smaller than the outer diameter of the sealing ring 2, and a gap is left between the retaining edge and the axle 5. The gap is provided to ensure that the axle does not interfere with the retaining edge when rotating, so as to ensure the stable rotation of the wheel.

[0033] In addition, the bearing chamber, mounting groove and retaining edge form a multi-step shape, which ensures the axial and radial positioning of the bearing and the sealing ring. At the same time, the sealing ring is located on the outside of the bearing, which can not only prevent water vapor from entering the wheel, but also prevent water vapor from entering the bearing, thereby avoiding affecting the service life of the bearing.

[0034] The axle 5 can be a tubular structure with one end open and the other end closed, and the open end extends inward to form a blind hole for accommodating the power supply line 9. The side wall of the axle 5 is also provided with a through hole for the power supply line 9 to pass through, and the opening is also provided with a sealing wire sleeve 6. The inner and outer sides of the sealing wire sleeve 6 are respectively against the power supply line 9 and the axle opening, so as to achieve a waterproof seal at the line entry.

[0035] The axle 5 can also be a hollow tubular structure with both ends open, and a through hole is provided on the side wall of the axle 5 for the power supply line 9 to pass through. A sealing plug 4 is provided at one end of the axle 5, and a sealing wire sleeve 6 is provided at the other end. The housing sealing ring 7, the sealing plug 4 and the sealing wire sleeve 6 are all made of rubber, silicone, polytetrafluoroethylene or polyurethane.

[0036] The installation process of the waterproof structure of the present invention is as follows:

[0037] 1. Install the rubber ring 2 and the bearing 3 into the installation groove and the bearing chamber of the left housing 1 in sequence to form a left housing assembly;

[0038] 2. Install the rubber ring 2 and the bearing 3 into the installation groove and the bearing chamber of the right shell 8 in sequence, and install the shell sealing ring 7 on the end surface of the right shell 8 to form a right shell assembly;

[0039] 3. Insert the power supply line 9 into the axle 5, install the rubber wire sleeve 6, install the rubber plug 4, and then insert the two ends of the axle 5 into the left shell assembly and the right shell assembly respectively; finally, fix the left shell assembly and the right shell assembly to each other.

[0040] The present invention provides a sealing ring at the connection between the axle and the body, and also provides a shell sealing ring at the connection between the two shells of the wheel, so that the sealing performance of the entire wheel and the outside world is improved, and the electric drive device in the wheel can be effectively protected. The overall waterproof level 6 can be achieved, which can meet the needs of wheel washing, and can make the wheel wade more than 20CM, and can run stably under more severe working conditions.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A camping trailer wheel waterproof structure, characterized in that: The invention comprises a left shell (1), an axle (5) and a right shell (8); the left shell (1) and the right shell (8) are mutually buckled and fixed, and a shell sealing ring (7) is provided between the left shell (1) and the right shell (8); the axle (5) passes through the left shell (1) and the right shell (8), and the axle (5) is rotatably connected to the left shell (1) and the right shell (8), respectively, and a sealing ring (2) is provided between the axle (5) and the left shell (1) and the right shell (8).

2. A camping trailer wheel waterproof structure according to claim 1, characterized in that: One end of the axle (5) is open and extends inward to form a blind hole for accommodating the power supply line (9). A through hole is also provided on the side wall of the axle (5) to facilitate the power supply line (9) to pass through. A sealing wire sleeve (6) is also provided at the opening.

3. A camping trailer wheel waterproof structure according to claim 1, characterized in that: The axle (5) is in the shape of a hollow tube, and a through hole is provided on the side wall for the power supply line (9) to pass through. A sealing plug (4) is provided at one end of the axle (5), and a sealing wire sleeve (6) is provided at the other end.

4. A camping trailer wheel waterproof structure according to claim 3, characterized in that: The housing sealing ring (7), the sealing plug (4) and the sealing wire sleeve (6) are all made of rubber, silicone, polytetrafluoroethylene or polyurethane.

5. The camping trailer wheel waterproof structure according to claim 1, characterized in that: The left shell (1) and the right shell (8) are mutually snap-connected or plug-connected, and the housing sealing ring (7) is arranged on the connecting surface of the left shell (1) and the right shell (8).

6. A camping trailer wheel waterproof structure according to claim 1, characterized in that: The axle (5) is rotationally connected to the left shell (1) and the right shell (8) respectively via bearings (3).

7. A camping trailer wheel waterproof structure according to claim 6, characterized in that: The left shell (1) and the right shell (8) are also provided with a bearing chamber (10); the outer ring of the bearing (3) is interference fit with the side wall of the bearing chamber (10); and the inner ring of the bearing (3) is interference fit with the axle (5).

8. A camping trailer wheel waterproof structure according to claim 7, characterized in that: The outer side of the bearing chamber (10) is also provided with a mounting groove, the outer ring of the sealing ring (2) abuts against the side wall of the mounting groove, and the inner ring of the sealing ring (2) abuts against the axle (5).

9. A camping trailer wheel waterproof structure according to claim 8, characterized in that: A retaining edge is provided on the outside of the installation groove, the diameter of the retaining edge is smaller than the outer diameter of the sealing ring (2), and a gap is left between the retaining edge and the axle (5).

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