Trailer structure with electric power assisting function
By using a servo motor to drive the rear axle assembly and steering mechanism, the problems of difficult trailer pulling and steering in confined spaces have been solved, achieving electric power assist and flexible steering, thus improving the trailer's moving efficiency and safety.
Patent Information
- Application Number
- CN202520561275.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing trailers do not have electric power steering, making them difficult to pull and prone to collisions when turning in confined spaces.
The rear axle assembly is driven by a servo motor. Combined with a rotatable housing and tie rod mechanism, the servo motor and steering wheels are controlled by a controller to achieve electric power assist and flexible steering of the trailer.
It improves the mobility of trailers, facilitates single-person operation, enhances steering flexibility in confined spaces, and reduces the risk of collisions.
Smart Images

Figure CN223878032U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to trailer technical field, concretely is a kind of trailer structure with electric power-assisted function. BACKGROUND
[0002] Trailer is mainly applied in factory building to carry goods, improve the carrying efficiency of workers;
[0003] The existing trailer does not have electric power-assisted structure, so it is difficult to pull up;
[0004] The four wheels of the existing trailer are fixed, and due to the narrow space in the factory, collision problem is prone to occur when turning, therefore, we invent a kind of trailer structure with electric power-assisted function. UTILITY MODEL CONTENTS
[0005] The utility model is to provide a kind of trailer structure with electric power-assisted function to solve the problems raised in the above background.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A kind of trailer structure with electric power-assisted function, including trailer frame, the rear end of the bottom of the trailer frame is installed with rear axle assembly;
[0008] The front end of the bottom of the trailer frame is installed with front axle assembly, and the rear axle assembly is driven by servo motor;
[0009] The bottom of the trailer frame is installed with battery;
[0010] The right end of the trailer frame is installed with rotatable shell, and the shell drives front axle assembly to turn through pull rod mechanism;
[0011] Steering wheel is rotatably connected on the shell, stand is installed on the shell, and controller is installed on the stand;
[0012] The controller is electrically connected with battery and servo motor.
[0013] In a preferred embodiment of the utility model, the bottom of the trailer frame is fixedly installed with box body in the middle, the battery is installed in the box body, the battery is connected with charging interface, and the interface is installed on the box body, and the right end of the trailer frame is connected with shell through rotating seat.
[0014] In a preferred embodiment of the utility model, the rear axle assembly includes axle rod one, axle rod one is rotatably connected on trailer frame, wheel one is fixedly installed on both ends of axle rod one, gear is fixedly installed in axle rod one, servo motor is fixedly installed at the bottom of trailer frame, driving gear is installed at the output end of servo motor, and driving gear is meshed with gear.
[0015] In a preferred embodiment of the utility model, the front axle assembly includes axle rod two, axle rod two is fixedly installed on trailer frame, shaft pin is rotatably connected to both ends of axle rod two, wheel two is rotatably connected to the end of shaft away from axle rod two through bearing.
[0016] In a preferred embodiment of the utility model, the pull rod mechanism includes pull rod four, pull rod four is rotatably connected on the shell, pull rod two is rotatably connected to the end of pull rod four away from the shell, the right side shaft coupling is fixedly connected with pull rod two, the left side shaft coupling is fixedly connected with pull rod one, and pull rod one and pull rod two are rotatably connected through pull rod three.
[0017] In a preferred embodiment of the utility model, the controller is fixedly installed with handle on both ends.
[0018] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be known by the practice of the utility model.
[0019] The front and rear axle assemblies and battery box are arranged, so that people can move the trailer conveniently, and the control handle is used to realize the control of the trailer by one person, and the forward and backward traction modes are diversified. ACCURACY OF DRAWINGS
[0020] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:
[0021] Figure 1 It is a perspective view of a trailer structure with electric power-assisted function.
[0022] Figure 2 It is a right view of a trailer structure with electric power-assisted function.
[0023] Figure 3 It is a left view of a trailer structure with electric power-assisted function.
[0024] Figure 4 It is a bottom view of a trailer structure with electric power-assisted function.
[0025] Figure 5 It is a schematic view of axle rod two, wheel two and coupling connection in the trailer structure with electric power assist function.
[0026] In the figure: trailer frame 100, box body 110, rotating seat 120, storage battery 200, rear axle assembly 300, axle rod one 310, wheel one 320, gear 330, servo motor 340, front axle assembly 400, axle rod two 410, wheel two 420, coupling 430, pull rod one 440, pull rod two 450, pull rod three 460, pull rod four 470, shell 500, stand column 510, handle 520, controller 530, steering wheel 600. DETAILED DESCRIPTION
[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0028] Please refer to Figures 1-5 A trailer structure with electric power assist function, comprising a trailer frame 100, wherein the rear end of the bottom of the trailer frame 100 is provided with a rear axle assembly 300;
[0029] The front end of the bottom of the trailer frame 100 is provided with a front axle assembly 400, and the rear axle assembly 300 is driven by a servo motor 340. Specifically, the rear axle assembly 300 is rotated by the servo motor 340, so as to drive the trailer frame 100 to move, thereby improving the work efficiency.
[0030] The bottom of the trailer frame 100 is provided with a storage battery 200, and the storage battery 200 has a power supply function for the servo motor 340.
[0031] The right end of the trailer frame 100 is provided with a shell 500 capable of rotating, and the shell 500 drives the front axle assembly 400 to steer through a pull rod mechanism.
[0032] The shell 500 is provided with a steering wheel 600 rotatably connected thereto, and the shell 500 is provided with a stand column 510, and the stand column 510 is provided with a controller 530. Specifically, the controller 530 has a fixing function for the servo motor 340.
[0033] The controller 530 is electrically connected with the storage battery 200 and the servo motor 340.
[0034] The box 110 is fixedly installed in the middle of the bottom of the trailer frame 100, the battery 200 is installed in the box 110, the charging interface is connected to the battery 200, and the interface is installed on the box 110, and the box 110 has a protection effect on the battery 200.
[0035] The rear axle assembly 300 comprises a shaft 310 rotatably connected to the trailer frame 100, wheels 320 fixedly installed at both ends of the shaft 310, a gear 330 fixedly installed in the middle of the shaft 310, a servo motor 340 fixedly installed at the bottom of the trailer frame 100, a driving gear installed at the output end of the servo motor 340, and the driving gear is in meshing connection with the gear 330, and the servo motor 340 drives the driving gear to rotate, the driving gear drives the gear 330 to rotate, the gear 330 drives the shaft 310 to rotate, and the shaft 310 drives the wheels 320 to rotate.
[0036] The front axle assembly 400 comprises a shaft 410 fixedly installed on the trailer frame 100, a shaft pin rotatably connecting a shaft 410 to a shaft 430, and a bearing rotatably connecting a shaft 430 to a wheel 420.
[0037] The pull rod mechanism comprises a pull rod 470 rotatably connected to the housing 500, a pull rod 450 rotatably connected to the pull rod 470 away from the housing 500, a pull rod 430 fixedly connected to the pull rod 450 on the right side, a pull rod 430 fixedly connected to a pull rod 440 on the left side, and a pull rod 440 rotatably connected to a pull rod 450 through a pull rod 460, and the handle 520 is rotatably connected to the housing 500, the housing 500 drives the steering wheel 600 to rotate, at the same time, the housing 500 drives the pull rod 470, the pull rod 470 drives the pull rod 450, and the pull rod 470 drives the pull rod 440 through the pull rod 460, so that the angle of the wheel 420 is changed and the steering direction of the steering wheel 600 is opposite, the rotation angle of the trailer frame 100 is increased, and the trailer frame 100 is convenient to move in a small space.
[0038] The controller 530 is fixedly installed at both ends of the handle 520.
[0039] The utility model discloses a working principle is: controller 530 controls servo motor 340, and servo motor 340 drives driving gear to rotate, and driving gear drives gear 330 to rotate, and gear 330 drives the rotation of axle rod one 310, and axle rod one 310 drives the rotation of wheel one 320;Handheld handle 520 rotates the shell 500, and the shell 500 drives the rotation of steering wheel 600, simultaneously, the shell 500 pulls pull rod four 470, and pull rod four 470 pulls pull rod two 450, and through pull rod three 460 pull rod one 440, make the angle change of wheel two 420, and with the steering wheel 600 opposite steering, increase trailer frame 100 rotation angle, facilitate trailer frame 100 in the narrow space moves.
[0040] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.
Claims
1. A trailer structure with electric power assist function, comprising a trailer frame (100), characterized in that: The rear axle assembly (300) is mounted at the rear bottom of the trailer frame (100). The trailer frame (100) has a front axle assembly (400) mounted on its bottom front end, and the rear axle assembly (300) is driven by a servo motor (340). A battery (200) is installed at the bottom of the trailer frame (100); The trailer frame (100) has a rotatable housing (500) installed on its right end. The housing (500) drives the front axle assembly (400) to steer via a tie rod mechanism. A steering wheel (600) is rotatably connected to the housing (500), a column (510) is mounted on the housing (500), and a controller (530) is mounted on the column (510). The controller (530) is electrically connected to the battery (200) and the servo motor (340).
2. The trailer structure with electric power assist function according to claim 1, characterized in that, The trailer frame (100) has a housing (110) fixedly installed in the middle of its bottom. A battery (200) is installed inside the housing (110). A charging interface is connected to the battery (200) and the interface is installed on the housing (110). The right end of the trailer frame (100) is connected to the housing (500) via a rotating seat (120).
3. The trailer structure with electric power assist function according to claim 1, characterized in that, The rear axle assembly (300) includes a shaft (310), which is rotatably connected to the trailer frame (100). Wheels (320) are fixedly installed at both ends of the shaft (310), and a gear (330) is fixedly installed in the middle of the shaft (310). A servo motor (340) is fixedly installed at the bottom of the trailer frame (100), and a drive gear is installed at the output end of the servo motor (340), and the drive gear meshes with the gear (330).
4. The trailer structure with electric power assist function according to claim 1, characterized in that, The front axle assembly (400) includes a second axle (410), which is fixedly mounted on the trailer frame (100). Both ends of the second axle (410) are rotatably connected to a coupling (430) via pins. The end of the coupling (430) away from the second axle (410) is rotatably connected to a wheel (420) via a bearing.
5. A trailer structure with electric power assist function according to claim 4, characterized in that, The pull rod mechanism includes a fourth pull rod (470), which is rotatably connected to the housing (500). The end of the fourth pull rod (470) away from the housing (500) is rotatably connected to a second pull rod (450). The second pull rod (450) is fixedly connected to the coupling (430) on the right side. The coupling (430) on the left side is fixedly connected to a first pull rod (440). The first pull rod (440) and the second pull rod (450) are rotatably connected through a third pull rod (460).
6. A trailer structure with electric power assist function according to claim 1, characterized in that, The controller (530) has handles (520) fixedly installed at both ends.