Reducing mechanism for camping trailer

Abstract

The utility model relates to a reducing mechanism for camping trailers, which comprises a motor, a reducer and a shell, the reducer comprises a worm gear and a worm which are rotatably arranged in the shell and are in mutual transmission, the motor is arranged on one side of the worm, and a rotating shaft of the motor is in meshing transmission with one end of the worm through a gear; the shell is further provided with a through hole facilitating connection of the worm gear and the wheel. According to the speed reduction mechanism, a two-stage speed reduction transmission mode of the motor and the worm and a two-stage speed reduction transmission mode of the worm and the turbine are adopted, the speed reduction ratio is greatly increased, the power of the camping car is higher, and the camping car can be used under various road conditions; the motor is arranged on one side of the worm, the overall size can be reduced, and assembling is convenient; and meanwhile, due to the worm and gear transmission mode, noise is reduced, and the use experience feeling is better.

Description

Technical Field

[0001] This utility model belongs to the technical field of camper vehicle accessories, and in particular relates to a deceleration mechanism for camper trailers. Background Technology

[0002] Campervans provide simple transportation for people in the outdoors, and their compact and lightweight features make them ideal for carrying outdoors. Most current campervans are manually operated push-pull models, but with product improvements, some self-propelled campervans have also appeared on the market, making it easier to move large items or multiple items.

[0003] Some existing power-assisted camping vehicles generally use a motor to directly drive the wheels. When encountering rough or uneven roads or steep inclines, they often suffer from insufficient power and difficulty in climbing and getting out of trouble. Although some drag-resistant camping vehicles are also equipped with a deceleration mechanism, the existing deceleration mechanism is large, the deceleration effect is not obvious, and it also produces a lot of noise, affecting the user experience. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a deceleration mechanism for camping trailers, which has the advantages of large reduction ratio, low noise and small size.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0006] A reduction gear mechanism for a camping trailer includes a motor, a reducer, and a housing. The reducer includes a worm gear and a worm shaft that are rotatably disposed within the housing and drive each other. The motor is disposed on one side of the worm shaft, and the motor shaft is driven by a gear meshing with one end of the worm shaft. The housing is also provided with a through hole to facilitate the connection between the worm gear and a wheel.

[0007] As a preferred embodiment, the motor shaft is arranged parallel to the worm gear, and the motor and worm gear are located on the same side of the gear meshing surface. Arranging the motor on one side of the worm gear and setting the shaft parallel to the worm gear further reduces the overall size and increases assembly convenience.

[0008] As a preferred embodiment, one end of the housing extends to form a mounting plate, the motor is fixed to the mounting plate, and a small gear is fixed to the motor shaft after passing through the mounting plate. One end of the worm gear is rotatably mounted inside the housing via a bearing C, and the other end of the worm gear passes through the housing and is fixed to a large gear. The small gear and the large gear mesh for transmission. This meshing transmission method of large and small gears can improve the reduction ratio.

[0009] As a preferred embodiment, the housing includes a first half-shell and a second half-shell that are joined and fixed together, and a cover is fastened to one end of the first half-shell and the second half-shell. The cover can cover the pinion and gear, which can prevent external dust, moisture and other substances from entering the gears and affecting the gear meshing and transmission, thereby extending the service life; on the other hand, it can also isolate and reduce the noise generated by the gear transmission.

[0010] As a preferred embodiment, the cover also includes a bearing chamber, which houses a bearing C. The other end of the worm gear is connected to bearing C. This structure ensures that both ends of the worm gear are equipped with bearings, resulting in smoother operation.

[0011] As a preferred embodiment, a boss is provided on one side of the worm gear, and a bearing A is fitted over the boss, with the outer ring of the bearing A fixed to the first half-shell.

[0012] As a preferred embodiment, the through hole is provided on the first half-shell, and at least a portion of the boss is located within the through hole, with a connecting groove also provided on the boss. The boss not only enables the rotation of the turbine but also provides an interface for the connection between the reduction mechanism and the wheel, reducing installation difficulty.

[0013] As a preferred embodiment, the second half-shell also includes a positioning post, and the other side of the worm gear is rotatably mounted on the positioning post via bearing B. Bearings on both sides of the worm gear improve its operational stability.

[0014] As a preferred embodiment, the positioning post is a hollow cylindrical tube, and the second half-shell has a circular hole that communicates with the positioning post.

[0015] As a preferred embodiment, the worm gear has a through hole, and the positioning pin is at least partially located within the through hole. This structure, combined with the hollow positioning pin structure, allows the axle to pass through the reduction mechanism, enabling one reduction mechanism to drive two wheels simultaneously.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The reduction mechanism of this utility model adopts a two-stage reduction transmission method of motor and worm, and worm and turbine, which greatly increases the reduction ratio, making the camper vehicle more powerful and meeting the needs of use in various road conditions; the motor is arranged on one side of the worm, which can reduce the overall size and facilitate assembly; at the same time, the worm gear transmission method reduces the generation of noise and improves the user experience. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the disassembled shell of this utility model and the installation structure of some components;

[0021] Figure 3 This is an exploded structural diagram of the present invention.

[0022] The attached diagram is labeled as follows: 1. First half-shell; 2. Bearing A; 3. Worm gear; 4. Bearing B; 5. Motor; 6. Bearing C; 7. Second half-shell; 8. Worm; 9. Large gear; 10. Small gear; 11. Cover; 12. Mounting plate; 13. Through hole; 14. Boss; 15. Positioning pin. Detailed Implementation

[0023] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] Furthermore, in the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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, they should not be construed as limitations on this utility model.

[0026] 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, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 mechanical connection or an electrical 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 according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] like Figures 1 to 3 As shown, a reduction mechanism for a camping trailer includes a motor 5, a reducer, and a housing. The reducer includes a worm gear 3 and a worm 8 that are rotatably disposed within the housing and drive each other. The motor 5 is disposed on one side of the worm 8, and the shaft of the motor 5 is driven by a gear meshing with one end of the worm 8. The housing is also provided with a through hole 13 to facilitate the connection between the worm gear 3 and the wheel.

[0031] The motor 5's shaft is parallel to the worm gear 8, and the motor 5 and worm gear 8 are located on the same side of the gear meshing surface. Positioning the motor on one side of the worm gear and arranging the shaft parallel to the worm gear further reduces the overall size and increases assembly convenience.

[0032] One end of the housing extends to form a mounting plate 12. The motor 5 is fixed to the mounting plate 12, and the shaft of the motor 5 passes through the mounting plate 12 and is fixed with a small gear 10. One end of the worm gear 8 is rotatably mounted inside the housing via a bearing C6, and the other end of the worm gear 8 passes through the housing and is fixed with a large gear 9. The small gear 10 and the large gear 9 mesh and drive each other. This meshing transmission method of the large and small gears can improve the reduction ratio.

[0033] The housing includes a first half-shell 1 and a second half-shell 7 that are joined and fixed together, and a cover 11 is fastened and fixed to one end of the first half-shell 1 and the second half-shell 7. One end of the second half-shell 7 or the first half-shell 1 extends outward to form a mounting plate 12, which facilitates the installation and fixing of the motor. In addition, the cover can cover the pinion and gear, which can prevent external dust, moisture and other substances from entering the gears and affecting the gear meshing and transmission, thereby extending the service life; on the other hand, it can also isolate and reduce the noise generated by the gear transmission.

[0034] The cover 11 also contains a bearing chamber, which houses a bearing C6. The other end of the worm gear 8 passes through the large gear 9 and connects to the bearing C6. This structure ensures that both ends of the worm gear have bearings, resulting in smoother operation.

[0035] A boss 14 is provided on one side of the worm gear 3. A bearing A2 is fitted over the boss 14, and the outer ring of the bearing A2 is fixed to the first half-shell 1. A through hole 13 is provided on the first half-shell 1, and at least a portion of the boss is located within the through hole 13. A connecting groove is also provided on the boss 14. The boss not only enables the rotation of the worm gear but also provides an interface for the connection between the reduction mechanism and the wheel, reducing the installation difficulty.

[0036] The second half-shell 7 also includes a positioning post 15, and the other side of the worm gear 3 is rotatably mounted on the positioning post 15 via bearing B 4. Bearings are provided on both sides of the worm gear, improving its operational stability. The positioning post 15 is a hollow cylindrical tube, and a circular hole is provided on the second half-shell 7, communicating with the positioning post 15. The worm gear 3 has a through hole, and the positioning post 15 is at least partially located within the through hole. This structure allows the axle to pass through the reduction mechanism, enabling one reduction mechanism to simultaneously drive two wheels.

[0037] The assembly steps of this utility model are as follows:

[0038] First, install bearing C6 into one end of worm 8, then install worm 8 into the second half-shell 7, with the other end of worm 8 penetrating through the second half-shell 7 before installing the large gear 9.

[0039] Then, the motor 5 is fixed on the mounting plate (in this embodiment, the mounting plate is formed by the extension of the second half shell 7), and a small gear 10 is installed on the rotating shaft that passes through the mounting plate, so that the large gear 9 and the small gear 10 mesh and drive; the cover 11 is fastened to the large gear 9 and the small gear 10 and is fastened to the mounting plate 12.

[0040] Finally, bearings A2 and B4 are installed on both sides of the worm gear 3, and then the worm gear 3 is installed into the second half-shell 7, and the first half-shell 1 and the second half-shell 7 are fixed.

[0041] During operation, the rotation of motor 5 drives the small gear 10 to rotate, which in turn drives the large gear 9 to rotate. The rotation of large gear 9 causes the worm 8 to rotate, which in turn drives the worm wheel 3 to rotate, thereby achieving speed reduction and reducing noise.

[0042] The reduction mechanism of this utility model adopts a two-stage reduction transmission method of motor and worm, and worm and turbine, which greatly increases the reduction ratio, making the camper vehicle more powerful and meeting the needs of use in various road conditions; the motor is arranged on one side of the worm, which can reduce the overall size and facilitate assembly; at the same time, the worm gear transmission method reduces the generation of noise and improves the user experience.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit 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 shall still fall within the scope of the technical solution of the present invention.

Claims

1. A reduction gear for a camping trailer, characterized in that, The device includes a motor (5), a reducer, and a housing. The reducer includes a worm wheel (3) and a worm (8) that are rotatably disposed in the housing and drive each other. The motor (5) is disposed on one side of the worm (8). The shaft of the motor (5) is driven by a gear meshing with one end of the worm (8). The housing is also provided with a through hole (13) to facilitate the connection between the worm wheel (3) and the wheel. The motor (5) has its shaft parallel to the worm (8), and the motor (5) and the worm (8) are located on the same side of the gear meshing surface.

2. The reduction gear mechanism for a camping trailer according to claim 1, characterized in that, One end of the housing extends to form a mounting plate (12). The motor (5) is fixed to the mounting plate (12), and the shaft of the motor (5) passes through the mounting plate (12) and is fixed with a small gear (10). One end of the worm (8) is rotatably installed in the housing through a bearing C (6), and the other end of the worm (8) passes through the housing and is fixed with a large gear (9). The small gear (10) and the large gear (9) mesh and drive each other.

3. The reduction gear mechanism for a camping trailer according to claim 2, characterized in that, The shell includes a first half-shell (1) and a second half-shell (7) that are assembled and fixed together, and one end of the first half-shell (1) and the second half-shell (7) is also fastened and fixed with a cover (11).

4. A reduction gear for a camping trailer according to claim 3, characterized in that, The cover (11) is also provided with a bearing chamber, and the bearing chamber is also provided with a bearing C (6). The other end of the worm (8) is connected to the bearing C (6).

5. A reduction gear for a camping trailer according to claim 1, characterized in that, The worm gear (3) is also provided with a boss (14) on one side, and a bearing A (2) is provided on the outer ring of the boss (14), and the outer ring of the bearing A (2) is fixed to the first half shell (1).

6. A reduction gear for a camping trailer according to claim 5, characterized in that, The through hole (13) is provided on the first half shell (1), and at least part of the boss (14) is located in the through hole (13), and the boss (14) is also provided with a connecting groove.

7. A reduction gear for a camping trailer according to claim 3, characterized in that, The second half-shell (7) is also provided with a positioning post (15), and the other side of the worm gear (3) is rotatably sleeved on the positioning post (15) through the bearing B (4).

8. A reduction gear for a camping trailer according to claim 7, characterized in that, The positioning post (15) is a hollow cylindrical tube, and the second half shell (7) has a circular hole that communicates with the positioning post (15).

9. A reduction gear for a camping trailer according to claim 8, characterized in that, The worm gear (3) has a through hole, and the positioning pin (15) is at least partially located inside the through hole.

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