Lifting device for loading and unloading motor tricycle

By installing a motor-driven lifting platform at the rear of a three-wheeled motorcycle, the problems of space occupation by the transmission mechanism and manual handling are solved, enabling automated loading and unloading and loading of goods of various sizes.

CN223764314UActive Publication Date: 2026-01-06CHONGQING JUNTENG MASCH MFG CO LTD
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Patent Information

Application Number
CN202520458313.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-06
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

The transmission and lifting mechanisms of existing three-wheeled motorcycles occupy the interior space of the vehicle, limiting the amount and height of cargo that can be loaded, and requiring manual labor to carry heavy goods.

Method used

Design a lifting device for loading and unloading three-wheeled motorcycles. The device uses a motor to drive a worm gear and worm wheel to drive a lead screw and a screw sleeve to achieve automatic lifting of the platform, avoiding the occupation of the internal space of the vehicle. The device also uses a sliding sleeve and a sliding rod to move the goods up and down.

Benefits of technology

It enables automated loading and unloading of goods, saves manpower, expands the loading space and height of the carriage, and adapts to the loading needs of various specifications of goods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The lifting device comprises a motor tricycle compartment, a loading and unloading assembly is arranged at the tail end of the motor tricycle compartment, the loading and unloading assembly comprises a connecting plate arranged at the tail end of the motor tricycle compartment, the right end of the connecting plate is fixedly connected with a machine shell, and the machine shell is detachably connected with the motor tricycle compartment. The bottom end of the connecting plate is fixedly connected with a sliding rod, the middle of the sliding rod is slidably connected with a sliding sleeve, and the middle of the sliding sleeve is fixedly connected with a platform. The lifting platform does not occupy the internal space of a compartment and limit the height of goods loaded by a vehicle, can facilitate loading of goods of various specifications, and is matched with transmission parts such as a motor, a worm and a worm gear to drive the platform to lift up and down on the sliding rod, automatic lifting goods loading is achieved, and manpower is saved.
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Description

Technical Field

[0001] This utility model relates to the field of loading and unloading three-wheeled motorcycles, and in particular to a lifting device for loading and unloading three-wheeled motorcycles. Background Technology

[0002] A three-wheeled motorcycle is a motorcycle with three wheels. It is a small means of transportation developed from a two-wheeled motorcycle. When loading and unloading, it is generally done manually or with the help of tools. For lighter and smaller goods, the goods can be carried out of the vehicle by hand. For heavier or larger goods, a handcart or flatbed cart can be used for loading and unloading.

[0003] Chinese Patent Application Publication No. CN202321526706.2 discloses an electric tricycle for convenient loading and unloading. This solution, through the coordinated use of a transmission mechanism and a lifting mechanism, allows for the convenient manual loading of heavy goods onto or unloading of heavy goods from the vehicle. However, the tricycle mentioned in the aforementioned patent uses a lifting mechanism to transfer heavy objects. Since both the transmission mechanism and the lifting mechanism are installed on the vehicle, they occupy the interior space of the vehicle, thus reducing the space for loading goods. Furthermore, since both the transmission mechanism and the lifting mechanism are located on the top of the vehicle, there are certain restrictions on the height of the goods, which limits the amount or size of the goods that can be loaded, making it unfavorable for loading more goods.

[0004] Therefore, we propose a lifting device for loading and unloading three-wheeled motorcycles. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a lifting device for loading and unloading three-wheeled motorcycles. By moving the platform up and down, the goods on the platform can be moved up and down conveniently without manual handling. Moreover, the loading and unloading components are installed at the rear end of the three-wheeled motorcycle carriage, which will not occupy the internal space of the carriage or limit the height of the loaded goods, and can facilitate the loading of goods of various specifications.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A lifting device for loading and unloading three-wheeled motorcycles includes a three-wheeled motorcycle carriage. A loading and unloading assembly is provided at the rear end of the three-wheeled motorcycle carriage. The loading and unloading assembly includes a connecting plate provided at the rear end of the three-wheeled motorcycle carriage. A housing is fixedly connected to the right end of the connecting plate. The housing is detachably connected to the three-wheeled motorcycle carriage. A sliding rod is fixedly connected to the bottom end of the connecting plate. A sliding sleeve is slidably connected to the middle of the sliding rod. A platform is fixedly connected to the middle of the sliding sleeve.

[0008] The basic structure that enables the platform to lift and lower provides a support and mobility base for subsequent loading and unloading operations of goods between the carriage and the outside world. The platform can be used as a place to place goods and can be moved up and down.

[0009] Furthermore, a rotating shaft is rotatably connected inside the housing, a limiting ring is fixedly connected to the bottom end of the rotating shaft, a snap ring is fixedly connected to the bottom end of the limiting ring, the bottom end of the snap ring penetrates the bottom end of the housing, and the snap ring is rotatably connected to the housing.

[0010] To achieve the limitation of relative position.

[0011] Furthermore, a worm gear is fixedly connected to the middle of the rotating shaft;

[0012] It supports the worm gear and facilitates subsequent transmission conditions for the worm gear.

[0013] Furthermore, a motor is fixedly connected inside the housing, and a worm gear is fixedly connected to the transmission end of the motor, with the worm gear rotatably connected to the housing;

[0014] The motor serves as the power source for the entire lifting device. As the driving component, the motor, through the worm gear connected to the motor drive end, provides the initial power for driving the movement of other components and realizing the lifting of the platform.

[0015] Furthermore, the worm gear meshes with the worm wheel.

[0016] Furthermore, a lead screw is fixedly connected to the bottom end of the snap ring, and the lead screw is symmetrical to the slide rod.

[0017] Furthermore, a threaded sleeve is threaded to the middle of the lead screw, and the middle of the threaded sleeve is fixedly connected to the platform.

[0018] Furthermore, a washer is rotatably connected to the bottom end of the lead screw.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. The platform allows for easy movement of goods up and down without the need for manual handling. The loading and unloading components are installed at the rear of the tricycle's cargo compartment, which does not occupy the interior space of the compartment or limit the height of the cargo. This facilitates the loading of various sizes of goods.

[0021] 2. The platform is driven to move up and down on the slide bar by the cooperation of the motor, worm gear, worm wheel, limit ring, snap ring, lead screw and screw sleeve, so as to realize the automated lifting and loading of goods and save manpower. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0023] Figure 2 This is a schematic diagram of the overall disassembled structure in this embodiment;

[0024] Figure 3 This is a schematic diagram of the loading and unloading components in this embodiment;

[0025] Figure 4 This is a schematic diagram of the transmission structure of the loading and unloading component in this embodiment;

[0026] Figure 5 This is in this embodiment Figure 3 Enlarged structural diagram at point A in the middle.

[0027] In the diagram, 1 is the three-wheeled motorcycle carriage; 2 is the loading and unloading assembly; 201 is the connecting plate; 202 is the housing; 203 is the slide rod; 204 is the sliding sleeve; 205 is the rotating shaft; 206 is the limiting ring; 207 is the snap ring; 208 is the worm gear; 209 is the motor; 210 is the worm; 211 is the lead screw; 212 is the threaded sleeve; 213 is the gasket; and 214 is the platform. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0030] Reference Figures 1-5 As shown, a lifting device for loading and unloading a three-wheeled motorcycle is provided in a preferred embodiment of the present invention. It includes a three-wheeled motorcycle carriage 1. A loading and unloading assembly 2 is provided at the rear end of the three-wheeled motorcycle carriage 1. The loading and unloading assembly 2 includes a connecting plate 201 provided at the rear end of the three-wheeled motorcycle carriage 1. A housing 202 is fixedly connected to the right end of the connecting plate 201. The housing 202 is detachably connected to the three-wheeled motorcycle carriage 1. A sliding rod 203 is fixedly connected to the bottom end of the connecting plate 201. A sliding sleeve 204 is slidably connected to the middle part of the sliding rod 203. A platform 214 is fixedly connected to the middle part of the sliding sleeve 204.

[0031] The basic structure that enables the lifting and lowering of platform 214 provides a bearing and moving foundation for subsequent loading and unloading operations of goods between the carriage and the outside world. Platform 214 can be used as a place to place goods and can be moved up and down.

[0032] The housing 202 is rotatably connected to a rotating shaft 205. A limit ring 206 is fixedly connected to the bottom end of the rotating shaft 205. A snap ring 207 is fixedly connected to the bottom end of the limit ring 206. The bottom end of the snap ring 207 passes through the bottom end of the housing 202 and is rotatably connected to the housing 202.

[0033] To achieve the limitation of relative position.

[0034] A worm gear 208 is fixedly connected to the middle of the rotating shaft 205;

[0035] It supports the worm gear 208 and facilitates the subsequent transmission conditions of the worm gear 208.

[0036] A motor 209 is fixedly connected inside the housing 202, and a worm gear 210 is fixedly connected to the transmission end of the motor 209. The worm gear 210 is rotatably connected to the housing 202.

[0037] The motor 209 serves as the driving component, providing the power source for the entire lifting device. Through the worm gear 210 connected to the transmission end of the motor 209, it provides the initial power for driving the movement of other components and realizing the lifting of the platform 214.

[0038] Worm 210 meshes with worm wheel 208;

[0039] By meshing the worm gear 210 with the worm wheel 208, the high-speed rotation of the motor 209 can be converted into a motion mode suitable for the lifting and lowering of the platform 214, achieving effects such as deceleration and torque increase, and ensuring that the platform 214 can perform lifting and lowering operations smoothly and effectively.

[0040] The bottom end of the snap ring 207 is fixedly connected to a lead screw 211, which is symmetrical to the slide bar 203;

[0041] To provide smooth transmission during subsequent lifting operations.

[0042] The middle part of the lead screw 211 is threadedly connected to the threaded sleeve 212, and the middle part of the threaded sleeve 212 is fixedly connected to the platform 214;

[0043] Through the threaded connection between the lead screw 211 and the screw sleeve 212, when the lead screw 211 rotates, the screw sleeve 212 will move up and down along the lead screw 211, thereby driving the platform 214, which is fixedly connected to the middle of the screw sleeve 212, to move up and down on the slide rod 203 through the slide sleeve 204. This realizes the conversion of the power of the motor 209 into the lifting action of the platform 214, and completes the height adjustment during loading and unloading of goods.

[0044] A washer 213 is rotatably connected to the bottom end of the lead screw 211;

[0045] The gasket 213 provides support, buffering, and limiting functions, ensuring the connection stability of the bottom end of the lead screw 211 during rotation. This prevents the lead screw 211 from being damaged due to long-term rotation or external forces, thus affecting the normal operation of the entire device and helping to maintain the overall stability and reliability of the device.

[0046] Specific implementation process: First, start the motor 209. The motor 209 drives the worm 210 to start rotating. Since the worm 210 meshes with the worm wheel 208, the rotation of the worm 210 will drive the worm wheel 208 to rotate accordingly. The worm wheel 208 is fixed on the rotating shaft 205, so the rotating shaft 205 rotates synchronously, which in turn drives the limiting ring 206 and the snap ring 207 at its bottom end to rotate together. The lead screw 211 fixed at the bottom end of the snap ring 207 also rotates accordingly. Because the lead screw 211 and the threaded sleeve 212 are threadedly connected, and the middle part of the threaded sleeve 212 is fixedly connected to the platform 214, and the sliding sleeve 204 slides on the sliding rod 203, when the lead screw 211 rotates, the threaded sleeve 212 will move up and down along the lead screw 211. The motor 209 moves, causing the platform 214 to move up and down on the slide bar 203 via the sliding sleeve 204. After the platform 214 is lowered to a suitable position, the goods are placed on the platform 214. Then, the motor 209 is started again to reverse the direction, causing the platform 214 to rise and lift the goods to a suitable height in the three-wheeled motorcycle carriage 1. Finally, the goods are moved into the carriage to complete the loading. When unloading the goods, the operation process is reversed. First, the platform 214 is lowered to the bottom of the carriage, the goods are moved onto the platform 214, and then the motor 209 is started to lower the platform 214 to the ground, thereby unloading the goods. Throughout the process, the pad 213 always supports, buffers, and limits the bottom end of the lead screw 211 to ensure the stable operation of the device.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lift device for loading and unloading a three-wheeled motorcycle, characterized by: The utility model provides a three-wheeled motorcycle carriage (1), which is provided with a loading and unloading assembly (2) at the tail end of the three-wheeled motorcycle carriage (1). The loading and unloading assembly (2) comprises a connecting plate (201) arranged at the tail end of the three-wheeled motorcycle carriage (1), a machine shell (202) fixedly connected to the right end of the connecting plate (201), the machine shell (202) being detachably connected to the three-wheeled motorcycle carriage (1), a sliding rod (203) fixedly connected to the bottom end of the connecting plate (201), a sliding sleeve (204) slidingly connected to the middle part of the sliding rod (203), and a platform (214) fixedly connected to the middle part of the sliding sleeve (204).

2. The lift device for loading and unloading a three-wheeled vehicle according to claim 1, characterized in that: The machine shell (202) is rotatably connected with a rotating shaft (205) at the inside thereof, the bottom end of the rotating shaft (205) is fixedly connected with a limiting ring (206), the bottom end of the limiting ring (206) is fixedly connected with a clamping ring (207), the bottom end of the clamping ring (207) penetrates through the bottom end of the machine shell (202), and the clamping ring (207) is rotatably connected with the machine shell (202).

3. The lift device for loading and unloading a three-wheeled vehicle according to claim 2, characterized in that: The middle part of the rotating shaft (205) is fixedly connected with a worm wheel (208).

4. The lift device for loading and unloading a three-wheeled vehicle according to claim 1, characterized in that: The inside of the machine shell (202) is fixedly connected with a motor (209), the transmission end of the motor (209) is fixedly connected with a worm (210), and the worm (210) is rotatably connected with the machine shell (202).

5. The lift device for loading and unloading a three-wheeled vehicle according to claim 4, characterized in that: The worm (210) is engaged with the worm wheel (208).

6. The lift device for loading and unloading a three-wheeled vehicle according to claim 2, characterized in that: The bottom end of the clamping ring (207) is fixedly connected with a lead screw (211), and the lead screw (211) is symmetrical to the sliding rod (203).

7. A lift device for loading and unloading a three-wheeled vehicle according to claim 6, characterized in that: The middle part of the lead screw (211) is threadedly connected with a screw sleeve (212), and the middle part of the screw sleeve (212) is fixedly connected with the platform (214).

8. The lift device for loading and unloading a three-wheeled vehicle according to claim 7, characterized in that: The bottom end of the lead screw (211) is rotatably connected with a gasket (213).

Citation Information

Patent Citations

  • Electric tricycle convenient to assemble and disassemble

    CN220243438U