Drive apparatus of camping wagon

Abstract

The present application relates to the technical field of camping wagons, and provides a drive apparatus for a camping wagon. Existing camping wagons are dragged by manpower during use, making it more laborious to drag the wagons when bearing heavy weights, especially when climbing hills and crossing grass. The drive apparatus comprises a hub, a motor, and a tire. The tire is sleeved on the hub and can rotate relative to the hub. The motor is fixedly arranged on the hub and drives the tire to rotate by means of a transmission mechanism. The hub comprises a first hub frame and a second hub frame. A motor clearance hole is provided on the first hub frame, a motor mounting seat corresponding to the motor clearance hole is provided on the second hub frame. After passing through the motor clearance hole, the motor is fixedly arranged in the motor mounting seat and fixedly connected to the second hub frame, and the axis of an output shaft of the motor is parallel to the axis of the hub. The advantages of the present application lie in that the motor is fixedly disposed on the hub, and the tire is driven to rotate by means of the motor, so as to implement electric power-assisted forward movement, so that the camping wagon can be moved in a more labor-saving manner when bearing a heavy weight.

Description

Driving device of a camper Technical Field

[0001] The utility model belongs to the technical field of camping vehicles and relates to a driving device of a camping vehicle. Background Art

[0002] As people increasingly prioritize outdoor wellness, global demand for outdoor energy storage, outdoor work, camping, and other outdoor activities is booming. Campers hike or drive to their campsites, often in valleys, lakeside areas, or seaside locations. They build campfires, barbecue, cookouts, and even sing songs—all common camping activities.

[0003] However, during camping, cars often cannot enter the camping site. Therefore, many items, such as tents and food, usually need to be transported to the desired camping location using a cart. A cart can save physical effort and reduce the difficulty of carrying. Traditional camping carts are not powered by electricity and rely entirely on manual towing. This makes it difficult to drag the vehicle when carrying a large load, especially when climbing slopes and crossing grassy areas. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems existing in the existing camper vans, and to propose a driving device which drives the wheels of the camper van to rotate to provide power assistance through a motor.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A drive device for a camper, characterized in that it includes a wheel hub, a motor and a tire, the tire is mounted on the wheel hub and can rotate relative to the wheel hub, the motor is fixedly mounted on the wheel hub and drives the tire to rotate through a transmission mechanism, the wheel hub includes a first wheel hub frame and a second wheel hub frame, the first wheel hub frame is provided with a motor avoidance hole, the second wheel hub frame is provided with a motor mounting seat corresponding to the motor avoidance hole, the motor passes through the motor avoidance hole and is fixed in the motor mounting seat and fixedly connected to the second wheel hub frame, and the axis of the motor output shaft is parallel to the axis of the wheel hub.

[0007] In the above-mentioned drive device of a camper, the transmission mechanism includes a driving pinion fixedly connected to the motor output shaft, a driven gear fixedly connected to the tire, and a reduction gear set rotatably arranged on the wheel hub and respectively meshing with the driving pinion and the driven gear. The reduction gear set consists of two mutually meshing gear pairs, and the gear pairs include a gear and a pinion fixedly connected and coaxially arranged, wherein the pinion in one gear pair meshes with the driven gear, and the gear in the other gear pair meshes with the driving pinion.

[0008] In the above-mentioned driving device of a camper, the driven large gear is detachably arranged on the tire through a plug-in structure. The plug-in structure includes a positioning plate fixedly connected to the driven large gear, a convex key fixed on the tire, and a positioning hole opened on the positioning plate. The positioning plate is mounted on the convex key of the tire through the positioning hole, and the cross-sectional shape of the positioning hole is adapted to the cross-sectional shape of the convex key.

[0009] In the above-mentioned drive device of a camper, the output shaft of the motor passes through the motor mounting sleeve and extends out of the wheel hub frame 2. A gear seat is fixedly provided on the outer surface of the wheel hub frame 2. The driving pinion and a gear pair meshing with the driving pinion are both arranged in the gear seat. A through hole communicating with the inner cavity of the gear seat is also opened on the wheel hub frame 2. The pinion in the gear pair arranged in the gear seat passes through the through hole and meshes with the large gear on the other gear pair.

[0010] In the above-mentioned driving device of a camper, a plurality of mounting posts are fixedly provided on the inner side surface of the second wheel hub frame, and a plurality of mounting sleeves corresponding to each mounting post are fixedly provided on the inner side surface of the first wheel hub frame. Mounting grooves are provided on the outer end surfaces of the mounting sleeves, and the mounting posts are inserted into the corresponding mounting grooves and fixedly connected to the mounting sleeves by fasteners.

[0011] In the above-mentioned driving device of a camper, a rolling structure is further provided between the tire and the wheel hub. The rolling structure includes a plurality of rollers rotatably provided on the wheel hub, and the outer surface of each roller rotates against the inner surface of the tire.

[0012] In the aforementioned drive device for a camper, the tire includes a left wheel body and a right wheel body, which are disposed on either side of a wheel hub and engage with each other to cover the hub. The right wheel body is fixedly provided with a plurality of positioning posts integrally formed with the right wheel body, and the left wheel body is fixedly provided with a plurality of positioning sleeves corresponding to the positioning posts. The positioning sleeves have positioning grooves defined on their outer end surfaces, and the positioning posts are inserted into the corresponding positioning grooves and are secured to the positioning sleeves via fasteners. After the left and right wheel bodies are engaged, they are fixedly connected via fasteners such as bolts, making assembly and disassembly convenient and easy to inspect and repair.

[0013] In the above-mentioned driving device of a camper, the wheel hub is provided with an axial hole extending through the wheel hub along its axial direction, and the tire is provided with a mounting hole corresponding to the axial hole. A rotating shaft is fixed in the axial hole, and a bearing is embedded in the mounting hole and rotatably arranged on the rotating shaft through the bearing.

[0014] In the above-mentioned drive device of a camper, a wire threading hole is provided on the outer end face of the rotating shaft along its axial direction, and a wire outlet connected to the wire threading hole is provided on the outer wall of the rotating shaft along its radial direction. A wire threading tube is inserted into the wire threading hole and exits from the wire outlet and is fixed to the wheel hub. The wires connected to the motor are arranged in the wire threading tube and extend out of the tire along the wire threading tube.

[0015] In the above-mentioned drive device for a camper, a mounting ring is provided on the inner side surface of each of the left and right wheel bodies. The mounting ring is arranged coaxially with the tire. The mounting ring divides the inner cavity of the left / right wheel body into two independent inner and outer chambers. The inner wall of the inner chamber is provided with a plurality of inner reinforcing ribs radially arranged with the mounting hole as the center, and the inner wall of the outer chamber is provided with a plurality of outer reinforcing ribs distributed at intervals along the circumference of the mounting ring; the positioning column is provided on the outer reinforcing rib of the right wheel body, and the positioning sleeve is fixed on the outer reinforcing rib of the left wheel body.

[0016] Compared with the prior art, the present invention fixes the motor on the wheel hub and drives the tire to rotate through the motor, thereby achieving electric power-assisted forward motion, making it easier to move the camper when carrying a large weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the drive device of the present invention;

[0018] Figure 2 is a schematic diagram of the overall structure of the wheel hub of the present invention;

[0019] FIG3 is a schematic diagram of the overall structure of the wheel hub of the present invention from another angle;

[0020] Figure 4 is a schematic diagram of the motor installation of the present invention;

[0021] Figure 5 is a schematic structural diagram of the transmission mechanism of the present invention;

[0022] Figure 6 is a schematic structural diagram of the left wheel body of the present invention;

[0023] FIG7 is a schematic structural diagram of the right wheel body of the present invention.

[0024] In the figure, 1. motor; 2. hub frame 1; 3. hub frame 2; 4. left wheel body; 5. right wheel body; 6. positioning column; 7. positioning sleeve; 8. positioning groove; 9. mounting column; 12. rotating shaft; 13. threading tube; 14. mounting ring; 15. inner reinforcement rib; 16. outer reinforcement rib; 17. roller; 18. cam; 19. positioning hole; 20. positioning plate; 21. motor mounting seat; 22. gear seat; 23. driving small gear; 24. driven large gear; 25. large gear; 26. small gear; 27. motor avoidance hole. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] As shown in Figure 1, the drive device for a campervan according to the present invention comprises a wheel hub, a motor 1, and a tire. The tire is mounted on the wheel hub and can rotate relative to the wheel hub. The motor 1 is fixed to the wheel hub and drives the tire to rotate via a transmission mechanism. A rolling structure is provided between the tire and the wheel hub. This rolling structure includes multiple rollers 17 rotatably mounted on the wheel hub. The outer surface of each roller 17 rotates against the inner surface of the tire.

[0027] As shown in Figures 4 and 5, the transmission mechanism includes a driving pinion 23 fixedly connected to the output shaft of the motor 1, a driven gear 24 fixedly connected to the tire, and a reduction gear set rotatably mounted on the wheel hub and meshing with the driving pinion 23 and the driven gear 24, respectively. The reduction gear set comprises two meshing gear pairs, each of which includes a gear 25 and a pinion 26 fixedly connected and coaxially arranged. The pinion 26 of one gear pair meshes with the driven gear 24, while the gear 25 of the other gear pair meshes with the driving pinion 23. The driven gear 24 is removably mounted on the tire via a plug-in structure. The plug-in structure includes a positioning plate 20 fixedly connected to the driven gear 24, a key 18 fixedly mounted on the tire, and a positioning hole 19 defined in the positioning plate 20. The positioning plate 20 is mounted on the key 18 of the tire through the positioning hole 19. The cross-sectional shape of the positioning hole 19 matches the cross-sectional shape of the key 18.

[0028] As shown in Figures 2 and 3, the wheel hub includes hub frame 1 2 and hub frame 2 3. Hub frame 1 2 is provided with a motor avoidance hole 27, and hub frame 2 3 is provided with a motor 1 mounting seat corresponding to motor avoidance hole 27. Motor 1 passes through motor avoidance hole 27 and is fixedly mounted within the motor 1 mounting seat and connected to hub frame 2 3. The axis of the motor 1 output shaft is parallel to the axis of the wheel hub. Several mounting posts 9 are fixedly mounted on the inner side of hub frame 2 3. Several mounting sleeves corresponding to the mounting posts 9 are fixedly mounted on the inner side of hub frame 1 2. The outer end surfaces of the mounting sleeves are provided with mounting grooves. The mounting posts 9 are inserted into the corresponding mounting grooves and are fixedly connected to the mounting sleeves via fasteners.

[0029] As shown in Figure 4, the output shaft of the motor 1 passes through the motor 1 mounting sleeve and extends out of the hub frame 23. A gear seat 22 is fixedly provided on the outer surface of the hub frame 23. The driving pinion 23 and a gear pair meshing with the driving pinion 23 are both arranged in the gear seat 22. A through hole communicating with the inner cavity of the gear seat 22 is also provided on the hub frame 23. The pinion 26 in the gear pair arranged in the gear seat 22 passes through the through hole and meshes with the large gear 25 on the other gear pair.

[0030] As shown in Figures 6 and 7, the tire includes a left wheel body 4 and a right wheel body 5. The left wheel body 4 and the right wheel body 5 are respectively arranged on either side of the wheel hub and can be interlocked to cover the wheel hub. The right wheel body 5 is fixedly provided with a plurality of positioning posts 6 integrally formed with the right wheel body 5. The left wheel body 4 is fixedly provided with a plurality of positioning sleeves 7 corresponding to each positioning post 6. The positioning sleeves 7 have positioning grooves 8 defined on their outer end surfaces. The positioning posts 6 are inserted into the corresponding positioning grooves 8 and are fixedly connected to the positioning sleeves 7 via fasteners. After the left wheel body 4 and the right wheel body 5 are engaged, they are fixedly connected via fasteners such as bolts, making them convenient for assembly and disassembly as well as for maintenance.

[0031] A mounting ring 14 is provided on the inner side of each of the left and right wheel bodies 4 and 5, coaxially with the tire. The mounting ring 14 divides the inner cavity of the left and right wheel bodies 4 and 5 into two independent inner and outer chambers. The inner chamber wall is provided with a plurality of inner reinforcing ribs 15 radially arranged around the mounting hole, while the outer chamber wall is provided with a plurality of outer reinforcing ribs 16 spaced circumferentially along the mounting ring 14. The positioning post 6 is provided on the outer reinforcing rib 16 of the right wheel body 5, and the positioning sleeve 7 is fixed to the outer reinforcing rib 16 of the left wheel body 4. This serves to enhance the connection strength between the left and right wheel bodies 4 and 5, and between hub carriers 1 and 2.

[0032] As shown in Figures 2 and 3, the wheel hub has an axially extending axial hole, and the tire has a mounting hole corresponding to the axial hole. A rotating shaft 12 is fixedly mounted within the axial hole. A bearing is embedded in the mounting hole and rotatably mounted on the rotating shaft 12 via the bearing. A wire threading hole is defined along the axial direction on the outer end face of the rotating shaft 12, and a wire outlet is defined along the radial direction of the outer wall of the rotating shaft 12, which communicates with the wire threading hole. A wire threading tube 13 is inserted into the wire threading hole and exits through the outlet before being fixed to the wheel hub. The wires connecting the motor 1 are disposed within the wire threading tube 13 and extend out of the tire along the wire threading tube 13. The motor 1 is powered by a battery installed in the camper, and the wires between the battery and the motor 1 are routed through the wire threading tube 13.

[0033] It should be understood that in the claims and description of the present utility model, all "including..." should be understood as open-ended, that is, its meaning is equivalent to "at least containing...", and should not be understood as closed-ended, that is, its meaning should not be understood as "only including...".

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A driving device for a camper, characterized in that: The invention comprises a wheel hub, a motor (1) and a tire, wherein the tire is sleeved on the wheel hub and can rotate relative to the wheel hub, the motor (1) is fixedly arranged on the wheel hub and drives the tire to rotate through a transmission mechanism, the wheel hub comprises a first wheel hub frame (2) and a second wheel hub frame (3), the first wheel hub frame (2) is provided with a motor avoidance hole (27), the second wheel hub frame (3) is provided with a motor (1) mounting seat corresponding to the motor avoidance hole (27), the motor (1) passes through the motor avoidance hole (27) and is fixedly arranged in the motor (1) mounting seat and is fixedly connected to the second wheel hub frame (3), and the axis of the output shaft of the motor (1) is parallel to the axis of the wheel hub.

2. A driving device for a camper according to claim 1, characterized in that: The transmission mechanism comprises a driving pinion (23) fixedly connected to the output shaft of the motor (1), a driven large gear (24) fixedly connected to the tire, and a reduction gear set rotatably arranged on the wheel hub and respectively meshing with the driving pinion (23) and the driven large gear (24), wherein the reduction gear set is composed of two mutually meshing gear pairs, wherein the gear pairs comprise a large gear (25) and a pinion (26) which are fixedly connected to each other and coaxially arranged, wherein the pinion (26) in one gear pair meshes with the driven large gear (24), and the large gear (25) in the other gear pair meshes with the driving pinion (23).

3. A driving device for a camper according to claim 2, characterized in that: The driven gearwheel (24) is detachably arranged on the tire via a plug-in structure, the plug-in structure comprising a positioning plate (20) fixedly connected to the driven gearwheel (24), a convex key (18) fixedly arranged on the tire, and a positioning hole (19) provided on the positioning plate (20); the positioning plate (20) is sleeved on the convex key (18) of the tire via the positioning hole (19); and the cross-sectional shape of the positioning hole (19) is adapted to the cross-sectional shape of the convex key (18).

4. A driving device for a camper according to claim 2, characterized in that: The output shaft of the motor (1) passes through the motor (1) mounting sleeve and then extends out of the second wheel hub frame (3). A gear seat (22) is fixedly provided on the outer side surface of the second wheel hub frame (3). A driving pinion (23) and a gear pair meshing with the driving pinion (23) are both arranged in the gear seat (22). The second wheel hub frame (3) is also provided with a through hole communicating with the inner cavity of the gear seat (22). A pinion (26) in the gear pair arranged in the gear seat (22) passes through the through hole and meshes with a large gear (25) on another gear pair.

5. The driving device of a camper according to claim 1, characterized in that: A plurality of mounting posts (9) are fixedly arranged on the inner side surface of the second wheel hub frame (3), and a plurality of mounting sleeves corresponding to the mounting posts (9) are fixedly arranged on the inner side surface of the first wheel hub frame (2). The outer end surface of the mounting sleeve is provided with a mounting groove, and the mounting posts (9) are inserted into the corresponding mounting grooves and are fixedly connected to the mounting sleeves through fasteners.

6. The driving device of a camper according to claim 1, characterized in that: A rolling structure is also provided between the tire and the wheel hub, the rolling structure comprising a plurality of rollers (17) rotatably arranged on the wheel hub, the outer wheel surface of each roller (17) rotatably abutting against the inner side surface of the tire.

7. The driving device of a camper according to claim 1, characterized in that: The tire comprises a left wheel body (4) and a right wheel body (5), the left wheel body (4) and the right wheel body (5) are arranged on both sides of the wheel hub and can be locked with each other to cover the wheel hub; the right wheel body (5) is fixedly provided with a plurality of positioning posts (6) integrally formed with the right wheel body (5); the left wheel body (4) is fixedly provided with a plurality of positioning sleeves (7) corresponding to the positioning posts (6) one by one, and the outer end surface of the positioning sleeve (7) is provided with a positioning groove (8), and the positioning post (6) is inserted into the corresponding positioning groove (8) and is fixedly connected to the positioning sleeve (7) through a fastener.

8. The driving device of a camper according to claim 1, characterized in that: The wheel hub is provided with an axial hole penetrating along its axial direction, the tire is provided with a mounting hole corresponding to the axial hole, a rotating shaft (12) is fixedly arranged in the axial hole, a bearing is embedded in the mounting hole and is rotatably arranged on the rotating shaft (12) through the bearing.

9. The driving device of a camper according to claim 8, characterized in that: A threading hole is provided on the outer end surface of the rotating shaft (12) along its axial direction, and a wire outlet connected to the threading hole is provided on the outer wall of the rotating shaft (12) along its radial direction. A threading tube (13) is inserted into the threading hole and passed out of the wire outlet and then fixed on the wheel hub. The wire connected to the motor (1) is arranged in the threading tube (13) and extends out of the tire along the threading tube (13).

10. The driving device of a camper according to claim 7, characterized in that: A mounting ring (14) is provided on the inner side surface of the left wheel body (4) and the right wheel body (5). The mounting ring (14) is arranged coaxially with the tire. The mounting ring (14) divides the inner cavity of the left wheel body (4) / right wheel body (5) into two independent inner and outer chambers. The inner wall of the inner chamber is provided with a plurality of inner reinforcing ribs (15) radially arranged with the mounting hole as the center, and the inner wall of the outer chamber is provided with a plurality of outer reinforcing ribs (16) distributed at intervals along the circumference of the mounting ring (14). The positioning column (6) is arranged on the outer reinforcing rib (16) of the right wheel body (5), and the positioning sleeve (7) is fixedly arranged on the outer reinforcing rib (16) of the left wheel body (4).

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