Motor home electric lifting guide wheel

Abstract

The utility model relates to the field of trailer motor homes, and discloses a motor home electric lifting guide wheel which comprises a lifting control box, a supporting sleeve is arranged on the right portion of the lower surface of the lifting control box, the outer side wall of the supporting sleeve is detachably connected with a mounting support through bolts, and a steering mechanism is arranged at the bottom end of the supporting sleeve. The lifting control box comprises an outer protective shell, a gear reducer is detachably connected to the interior of the outer protective shell through bolts, a lifting motor controller is fixedly connected to the left side of the gear reducer, and a lifting motor body is fixedly connected to the lower surface of the gear reducer; the top end of an output shaft of the lifting motor body extends into the gear reducer. The lifting motor body is adopted for assisting in the lifting process, meanwhile, the whole vehicle remote control operation is matched, the advancing, retreating and lifting processes of the vehicle can be accurately controlled, and operation manpower is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of trailer caravans, and more specifically to an electric lifting guide wheel for a caravan. Background Art

[0002] With the improvement of people's living standards and the pursuit of free travel, caravan travel has become increasingly popular. As a movable living and travel tool, a caravan can provide a comfortable living environment and a convenient means of transportation. During the use of a caravan, issues such as vehicle controllability, stability, and passability need to be considered;

[0003] Currently, the guide wheels of caravans are commonly controlled manually. The manual guide wheels are fixed to the front end of the caravan, and then the handle is shaken to lift and lower the caravan. Since caravans are generally heavy, it is time-consuming and laborious during the manual lifting process, and the operation process is very inconvenient. Moreover, the bearing capacity of the current manual guide wheels on the market is insufficient, basically remaining within 200 kg, and they cannot be used on caravans with heavy front axle loads. The universal wheels are prone to wear and damage. Content of the Utility Model

[0004] The main technical problem to be solved by the utility model is to provide an electric lifting guide wheel for a caravan, which can solve the problems that the guide wheels of current caravans are commonly controlled manually. The manual guide wheels are fixed to the front end of the caravan, and then the handle is shaken to lift and lower the caravan. Since caravans are generally heavy, it is time-consuming and laborious during the manual lifting process, and the operation process is very inconvenient. Moreover, the bearing capacity of the current manual guide wheels on the market is insufficient, basically remaining within 200 kg, and they cannot be used on caravans with heavy front axle loads. The universal wheels are prone to wear and damage.

[0005] To solve the above technical problem, according to one aspect of the utility model, more specifically, an electric lifting guide wheel for a caravan is provided, which includes a lifting control box. A support sleeve is arranged on the right side of the lower surface of the lifting control box. The outer side wall of the support sleeve is detachably connected with a mounting bracket by bolts. A steering mechanism is arranged at the bottom end of the support sleeve.

[0006] Furthermore, the lifting control box includes an outer protective shell. A gear reducer is detachably connected inside the outer protective shell by bolts. A lifting motor controller is fixedly connected to the left side of the gear reducer. A lifting motor body is fixedly connected to the lower surface of the gear reducer. The top end of the output shaft of the lifting motor body extends into the gear reducer. A lead screw assembly is arranged inside the mounting bracket. The bottom end of the lead screw assembly is detachably connected to the steering mechanism.

[0007] Furthermore, the steering mechanism includes two moving wheels. A wheel axle is commonly provided on the opposite sides of the two moving wheels. Bent connectors are symmetrically arranged on the outer sidewall of the wheel axle and between the two moving wheels. A bearing lower cover is fixedly connected to the upper surfaces of the two bent connectors. An upper bearing cover is detachably connected to the upper surface of the bearing lower cover. A plain bearing is commonly provided inside the bearing lower cover and the bearing upper cover. A pin is fixedly connected to the upper surface of the bearing upper cover, and the pin is movably connected to the bottom end of the lead screw assembly. A tapered roller bearing is provided below the bearing lower cover, and a locknut is provided below the tapered roller bearing.

[0008] Furthermore, an emergency cover is threadedly connected to the upper right of the outer protective shell, and an emergency wrench is provided on the right of the support sleeve.

[0009] Furthermore, a control center is integrally formed on the left side of the outer protective shell.

[0010] The beneficial effects of a motorized electric lifting guide wheel for a recreational vehicle of the present utility model are as follows:

[0011] During the lifting process of the present utility model, the lifting motor body provides assistance, and at the same time, it cooperates with the remote control operation of the whole vehicle, which can accurately control the forward and backward movement and the lifting process of the vehicle, greatly reducing the operating manpower.

[0012] The present utility model optimizes the steering mechanism, adopting a double-bearing combination of a plain bearing and a tapered roller bearing, which can bear both axial loads and transverse loads. Compared with the common single-bearing design, the axial bearing capacity can be increased to more than three hundred kilograms, expanding the usage scenarios and greatly improving the product life.

[0013] The moving wheels in the present utility model use eight-inch large-size wheels, and the tread uses rubber. The rubber tread increases the wear resistance of the road surface and has a buffering effect, improving the passing performance and life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further elaborates on the present utility model in detail with reference to the drawings and specific implementation methods.

[0015] Figure 1 is the overall structural schematic diagram of a motorized electric lifting guide wheel for a recreational vehicle of the present utility model;

[0016] Figure 2 is the exploded structural schematic diagram of the lifting control box of a motorized electric lifting guide wheel for a recreational vehicle of the present utility model;

[0017] Figure 3 is the exploded structural schematic diagram of the steering mechanism of a motorized electric lifting guide wheel for a recreational vehicle of the present utility model;

[0018] Figure 4 This is the electrical schematic diagram of an electric lifting guide wheel for a motorhome of the present utility model.

[0019] In the figure: 1. Lifting control box; 2. Support sleeve; 3. Mounting bracket; 4. Steering mechanism; 5. Outer protective shell; 6. Gear reducer; 7. Lifting motor controller; 8. Lifting motor body; 9. Lead screw assembly; 10. Moving wheel; 11. Wheel shaft; 12. Bent connecting piece; 13. Bearing lower cover; 14. Bearing upper cover; 15. Plain bearing; 16. Pin; 17. Tapered roller bearing; 18. Locknut; 19. Emergency cover opening; 20. Emergency wrench; 21. Control center. Specific embodiments

[0020] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0021] According to one aspect of the present utility model:

[0022] As Figure 2 shown, the control center 21 is integrally formed on the left side of the outer protective shell 5;

[0023] The control center 21 integrates a variety of important functions, including lifting control buttons, indicator lights, fault alarm devices, etc. Through the integration of various functions, the user can intuitively understand the working state of the guide wheel and can conveniently control the lifting operation automatically.

[0024] As Figure 1 shown, a support sleeve 2 is provided on the right side of the lower surface of the lifting control box 1. The outer side wall of the support sleeve 2 is detachably connected to the mounting bracket 3 by bolts, and a steering mechanism 4 is provided at the bottom end of the support sleeve 2;

[0025] Before installation, the mounting bracket 3 is welded and fixed on the outside of the motorhome bracket. At the same time, the detachable connection between the mounting bracket 3 and the support sleeve 2 by bolts facilitates the quick disassembly of the whole device, so that the electric wheel can be quickly fixed on the trailer motorhome, and it is also convenient for the later maintenance of the electric wheel. The lifting control box 1 is used to transmit the user's instructions and control the lifting of the device respectively, and the steering mechanism 4 is responsible for controlling the steering of the guide wheel, so that the motorhome can drive and turn flexibly.

[0026] As Figure 2As shown in the figure, the lifting control box 1 includes an outer protective shell 5. Inside the outer protective shell 5, a gear speed reducer 6 is detachably connected by bolts. On the left side of the gear speed reducer 6, a lifting motor controller 7 is fixedly connected. On the lower surface of the gear speed reducer 6, a lifting motor body 8 is fixedly connected. The top end of the output shaft of the lifting motor body 8 extends into the interior of the gear speed reducer 6. Inside the mounting bracket 3, a lead screw assembly 9 is provided. The bottom end of the lead screw assembly 9 is detachably connected to the steering mechanism 4;

[0027] The vehicle controller VCU sends a lifting instruction to the lifting motor controller 7. Then, the lifting motor controller 7 controls the forward and reverse rotation of the lifting motor body 8. The lifting motor body 8 controls the forward and reverse rotation of the lead screw assembly 9 through the gear speed reducer 6. The lead screw assembly 9 drives the ball slider inside the assembly to drive the lower part of the electric wheel to lift, completing the lifting process, thereby improving the reliability and safety of the entire lifting system.

[0028] As Figure 1 and Figure 2 shown in the figure, on the upper right surface of the outer protective shell 5, an emergency cover port 19 is threadedly connected. On the right side of the support sleeve 2, an emergency wrench 20 is provided;

[0029] The emergency wrench 20 can open the emergency cover port 19 in the case of power failure and manually rotate the lifting lead screw assembly 9 to control the lifting of the electric wheel, without affecting the manual docking of the trailer and the towing vehicle in the case of power failure, thereby improving the flexibility and practicality of the device.

[0030] As Figure 3 shown in the figure, the steering mechanism 4 includes two moving wheels 10. A wheel shaft 11 is jointly provided on the opposite sides of the two moving wheels 10. On the outer side wall of the wheel shaft 11 and symmetrically arranged between the two moving wheels 10, there are bent connectors 12. On the upper surfaces of the two bent connectors 12, a bearing lower cover 13 is jointly fixedly connected. On the upper surface of the bearing lower cover 13, a bearing upper cover 14 is detachably connected. Inside the bearing lower cover 13 and the bearing upper cover 14, a plain bearing 15 is jointly provided. On the upper surface of the bearing upper cover 14, a pin 16 is fixedly connected. The pin 16 is movably connected to the bottom end of the lead screw assembly 9. Below the bearing lower cover 13, there is a tapered roller bearing 17. Below the tapered roller bearing 17, there is a locknut 18;

[0031] The steering mechanism 4 is a caster structure as a whole. The plain bearing 15 bears the axial force, and the tapered roller bearing 17 bears the lateral force, making the steering mechanism 4 more stable and smooth during rotation. The moving wheels 10 use large-sized eight-inch double wheels with strong load-bearing capacity, improving the passing performance of the whole vehicle. Moreover, the left and right wheels have differential steering, reducing the tire friction. At the same time, the dismountable connection method of the bearing lower cover 13 and the bearing upper cover 14 facilitates the installation and maintenance of the plain bearing 15. During the working process, they can effectively prevent impurities such as dust and moisture from entering the bearing interior and extend the service life of the bearing.

[0032] All the electrical components mentioned in this article are electrical components existing in reality.

[0033] Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essence of the present utility model also belong to the protection scope of the present utility model.

Claims

1. An electric lifting guide wheel for a motorhome, comprising a lifting control box (1), characterized in that: A support sleeve (2) is arranged on the right side of the lower surface of the lifting control box (1); the outer wall of the support sleeve (2) is detachably connected to a mounting bracket (3) via bolts; and a steering mechanism (4) is arranged at the bottom end of the support sleeve (2).

2. The electric lifting guide wheel of a motorhome according to claim 1, characterized in that: The lifting control box (1) comprises an outer protective shell (5), the interior of the outer protective shell (5) is detachably connected to a gear reducer (6) via bolts, the left side of the gear reducer (6) is fixedly connected to a lifting motor controller (7), the lower surface of the gear reducer (6) is fixedly connected to a lifting motor body (8), the top end of the output shaft of the lifting motor body (8) extends to the interior of the gear reducer (6), a screw assembly (9) is arranged inside the mounting bracket (3), and the bottom end of the screw assembly (9) is detachably connected to the steering mechanism (4).

3. The electric lifting guide wheel for a motorhome according to claim 2, characterized in that: The steering mechanism (4) comprises two movable wheels (10), a wheel axle (11) is commonly provided on opposite sides of the two movable wheels (10), a curved connecting piece (12) is symmetrically provided on the outer side wall of the wheel axle (11) and located between the two movable wheels (10), the upper surfaces of the two curved connecting pieces (12) are commonly fixedly connected to a bearing lower cover (13), the upper surface of the bearing lower cover (13) is detachably connected to a bearing upper cover (14), a plane bearing (15) is commonly provided inside the bearing lower cover (13) and the bearing upper cover (14), a latch (16) is fixedly connected to the upper surface of the bearing upper cover (14), the latch (16) is movably connected to the bottom end of the screw assembly (9), a tapered roller bearing (17) is provided below the bearing lower cover (13), and a locking nut (18) is provided below the tapered roller bearing (17).

4. The electric lifting guide wheel for a motorhome according to claim 2, characterized in that: An emergency cover (19) is threadedly connected to the right side of the upper surface of the outer protective shell (5), and an emergency wrench (20) is arranged on the right side of the supporting sleeve (2).

5. The electric lifting guide wheel for a motorhome according to claim 2, characterized in that: A control center (21) is integrally formed on the left side of the outer protective shell (5).

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