A new type of multi-functional frame for electric tricycles
By designing support and adjustment mechanisms on electric tricycles, the problem of misstepping and bumping when loading and unloading goods has been solved, enabling safe and convenient loading and unloading operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINBO ELECTRIC VEHICLE CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-31
AI Technical Summary
Electric tricycles designed for carrying goods have a single-function frame, which can easily lead to safety hazards such as missteps or collisions in high-frequency loading and unloading scenarios.
A novel multi-functional frame for an electric tricycle is designed, comprising a support mechanism and an adjustment mechanism. The support mechanism forms a ladder-like structure through pedals and support rods to provide support for getting on and off the vehicle. The adjustment mechanism adjusts the height of the cargo box through hydraulic cylinders and guide rods, so that the cargo box is flush with the loading and unloading platform.
The support mechanism provides safe support for getting on and off the vehicle, while the adjustment mechanism improves the convenience of loading and unloading goods from high places, avoids missteps and collisions, and enhances the functional versatility of the chassis.
Smart Images
Figure CN224576752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric tricycle frame technology, and in particular to a novel multi-functional electric tricycle frame. Background Technology
[0002] The frame of an electric tricycle is the core load-bearing and connecting foundation of the entire vehicle, equivalent to the vehicle's "skeleton." It is usually constructed by welding or bolting together key components such as longitudinal beams, cross beams, and connecting brackets.
[0003] Based on their function, electric tricycles can be mainly divided into two categories: power-assisted and cargo-carrying. Power-assisted electric tricycles are more focused on short-distance passenger transport or light travel, with a frame design that prioritizes flexibility, lightness, and basic load-bearing capacity. Cargo-carrying electric tricycles, on the other hand, are designed primarily for cargo transportation. Therefore, the frames of these models are typically designed to be wider and more robust. The spacing between longitudinal beams, the density of crossbeams, and the overall structural strength of the frame are all reinforced to ensure stable support of the entire cargo box and the weight of the goods inside, preventing frame deformation or damage caused by long-term heavy loads.
[0004] Considering the requirements for load capacity and cargo box volume, cargo-carrying electric tricycles are generally quite tall, with a significant height difference between the bottom of the cargo box and the ground. During actual loading and unloading, workers need to repeatedly get on and off the vehicle, posing safety hazards such as slipping and bumping into things. However, most current cargo-carrying electric tricycle frames only fulfill basic "load-bearing" and "connection" functions, without being optimized for the high-frequency need of "convenient loading and unloading," resulting in a relatively limited functionality. Therefore, this paper proposes a new type of multi-functional electric tricycle frame to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a new type of multi-functional frame for electric tricycles, which aims to solve the problem mentioned in the prior art that "the frame of cargo-carrying electric tricycles has a single function, and is prone to misstepping or bumping in high-frequency loading and unloading scenarios".
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel multi-functional frame for an electric tricycle, comprising a frame body, a through groove on the side wall of the frame body, a support mechanism inside the frame body, and an adjustment mechanism on the top of the frame body;
[0007] The support mechanism includes a pedal, with support rods fixedly connected to both ends of the pedal. A slider is hinged to the top of the support rod, and a pin is slidably connected through the inner wall of the support rod. A limit block is fixedly connected to the end of the pin near the pedal, and a spring is fixedly connected to the side wall of the limit block.
[0008] As a further description of the above technical solution:
[0009] The adjustment mechanism includes a cargo box frame, and a guide rod is fixedly connected to the bottom of the cargo box frame.
[0010] As a further description of the above technical solution:
[0011] A guide cylinder is fixedly connected to the inner wall of the frame body. The guide cylinder is sleeved on the outer wall of the guide rod and can provide guidance for the guide rod.
[0012] As a further description of the above technical solution:
[0013] A hydraulic cylinder is hinged to the top of the vehicle frame body, and the piston rod of the hydraulic cylinder is hinged to the side wall of the cargo box frame.
[0014] As a further description of the above technical solution:
[0015] An anti-slip pad is fixedly connected to the upper surface of the pedal.
[0016] As a further description of the above technical solution:
[0017] The slider is slidably connected to the inner wall of the frame body, and a handle is fixedly connected to the right side of the slider.
[0018] As a further description of the above technical solution:
[0019] The pedals are distributed at least three sets at equal intervals along the axis of the support rod. The pedals and the support rod together form a "ladder"-like structure for assisting in getting on and off the vehicle frame or loading goods.
[0020] As a further description of the above technical solution:
[0021] The limiting block is elastically connected to the support rod via a spring.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the support mechanism is designed to provide support for workers during loading and unloading, allowing them to gradually load and unload the cargo box, thus avoiding safety accidents caused by missteps or collisions; in addition, the support mechanism adopts a folding structure design, which can be stored inside the frame body when not in use, without taking up extra space in the tricycle electric vehicle, making it more convenient to use.
[0024] 2. In this utility model, the height of the cargo box of the electric tricycle can be adjusted by the design of the adjustment mechanism so that the cargo box can be level with the loading and unloading platform when loading and unloading goods at a high place. At this time, the goods can be transferred simply by moving them horizontally, which greatly improves the convenience of loading and unloading goods at a high platform and further enhances the functional attributes of the vehicle frame. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the cargo box frame in the raised and foot pedal deployed states of this utility model;
[0027] Figure 3 This is a partial cross-sectional structural diagram of the frame body of this utility model;
[0028] Figure 4 This is a schematic diagram of the overall structure of the support mechanism of this utility model.
[0029] Legend:
[0030] 1. Frame body; 2. Through groove; 3. Support mechanism; 31. Pedal; 32. Support rod; 33. Slider; 34. Pin; 35. Limiting block; 36. Spring; 37. Handle; 38. Anti-slip mat; 4. Adjustment mechanism; 41. Cargo box frame; 42. Guide rod; 43. Guide cylinder; 44. Hydraulic cylinder. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 - Figure 3 One embodiment of this utility model is a novel multi-functional frame for an electric tricycle, comprising a frame body 1, a through groove 2 on the side wall of the frame body 1 for inserting a pin 34 to achieve folding and storage of the support rod 32 and the pedal 31, a support mechanism 3 inside the frame body 1, and an adjustment mechanism 4 on the top of the frame body 1.
[0033] Reference Figure 2 - Figure 4The support mechanism 3 includes a pedal 31, with support rods 32 fixedly connected to both ends of the pedal 31. At least three sets of pedals 31 are equidistantly distributed along the axis of the support rods 32. The pedals 31 and support rods 32 together form a "ladder"-like structure for assisting in loading and unloading cargo. The "ladder"-like structure formed by the support rods 32 and pedals 31 allows workers to step onto the cargo box and down the cargo box, ensuring safe loading and unloading. A slider 33 is hinged to the top of the support rod 32 and slidably connected to the inner wall of the frame body 1. A pin 34 penetrates and slidably connects to the inner wall of the support rod 32. The pin 34, in conjunction with the through groove 2, limits the support rod 32, keeping it horizontal and retracting it inside the frame body 1. The pin 34 is close to the pedal. One end of the plate 31 is fixedly connected to a limiting block 35, and a spring 36 is fixedly connected to the side wall of the limiting block 35. The limiting block 35 is elastically connected to the support rod 32 through the spring 36. The elasticity of the spring 36 in conjunction with the limiting block 35 allows the pin 34 to be stably inserted into the through groove 2. A handle 37 is fixedly connected to the right side of the slider 33. When the worker uses the pedal 31 to climb or descend, he / she can hold the handle 37 to maintain his / her balance during the process. An anti-slip pad 38 is fixedly connected to the upper surface of the pedal 31. The anti-slip pad 38 can increase the friction between the pedal 31 and the sole of the shoe to prevent the sole from slipping. The cooperation between the handle 37 and the anti-slip pad 38 can enhance the functional attributes of the support mechanism 3, improve the stability of the worker when loading and unloading goods, and prevent safety accidents.
[0034] Reference Figure 2 - Figure 3 The adjustment mechanism 4 includes a cargo box frame 41. The cargo box of the electric tricycle can be fixed to the top of the cargo box frame 41 by bolts or welding. The height of the cargo box can be adjusted by moving the cargo box frame 41 up and down, so as to load and unload goods at high places. A guide rod 42 is fixedly connected to the bottom of the cargo box frame 41. A guide cylinder 43 is fixedly connected to the inner wall of the frame body 1. The guide cylinder 43 is sleeved on the outer wall of the guide rod 42 and can provide guidance for the guide rod 42. Through the guidance of the guide cylinder 43, the guide rod 42 can slide smoothly up and down inside it. A hydraulic cylinder 44 is hinged to the top of the frame body 1. The piston rod of the hydraulic cylinder 44 is hinged to the side wall of the cargo box frame 41. An electric hydraulic pump is installed inside the frame body 1. The electric hydraulic pump is powered by the electric vehicle battery. The electric hydraulic pump provides power to the hydraulic cylinder 44. When the hydraulic cylinder 44 is started, it pushes the cargo box frame 41 upward. At this time, the cargo box frame 41 will drive the guide rod 42 to move smoothly upward on the inner wall of the guide cylinder 43.
[0035] Working principle: When loading and unloading goods into the cargo box, firstly, the limit block 35 pulls the pin 34, causing the pin 34 to move out of the through groove 2. At this time, the pin 34 can release the limit on the support rod 32. Then, the support rod 32 is pulled to make the slider 33 slide on the inner wall of the frame body 1, so that the support rod 32 moves out from the right side of the frame body 1. Then, the support rod 32 is rotated so that its bottom end abuts the ground. The frame body 1 and the slider 33 support the top of the support rod 32. At this time, the support rod 32 and the pedal 31 form a "ladder" structure, which allows the staff to step on the pedal 31 to gradually climb onto the cargo box and step on the pedal 31 to gradually climb down, so that the staff can safely get on and off the vehicle when loading and unloading goods.
[0036] When the support rod 32 pulls the slider 33 to slide on the inner wall of the frame body 1, the slider 33 will drive the handle 37 to gradually move out of the inside of the frame body 1. After the support rod 32 is supported on the ground, the handle 37 can be placed horizontally on the left and right sides of the support rod 32, so that the workers can hold the handle 37 when climbing or descending with the help of the pedal 31, so that the workers can maintain their body balance during the process of going up and down and ensure safe operation.
[0037] When the pedal 31 is not in use, first rotate the support rod 32 to be parallel to the frame body 1. Then, pull the pin 34 through the limiting block 35, so that the limiting block 35 stretches the spring 36 and drives the pin 34 to slide toward the pedal 31 until the end of the pin 34 away from the limiting block 35 is flush with the outer wall of the support rod 32. At this time, push the support rod 32 to make it slide the slider 33 on the inner wall of the frame body 1. At the same time, the support rod 32 will gradually enter the interior of the frame body 1. Then, insert the pin 34 into the interior of the through slot 2. At the same time, the elasticity of the spring 36 and the limiting block 35 can make the pin 34 stably inserted into the interior of the through slot 2. At this time, the pin 34 and the through slot 2 can limit the support rod 32, keep it in a horizontal state and store it inside the frame body 1.
[0038] The cargo box of the electric tricycle can be fixed to the top of the cargo box frame 41 by bolts or welding. When the loading and unloading platform is high, the hydraulic cylinder 44 can be activated to push the cargo box frame 41. At this time, the cargo box frame 41 will drive the guide rod 42 to move smoothly upward on the inner wall of the guide cylinder 43. At the same time, the height of the cargo box frame 41 will gradually increase, thereby driving the cargo box to move upward. When the cargo box is level with the loading and unloading platform, the hydraulic cylinder 44 can be closed. The hydraulic cylinder 44 provides stable support for the cargo box frame 41, so that the cargo box on the top of the cargo box frame 41 can maintain a stable level with the loading and unloading platform. This allows goods to be moved horizontally when loading and unloading, greatly improving the convenience of loading and unloading on high platforms.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A new type of electric tricycle multifunctional frame, comprising a frame body (1), characterized in that: The side wall of the frame body (1) is provided with a through groove (2), the inside of the frame body (1) is provided with a support mechanism (3), and the top of the frame body (1) is provided with an adjustment mechanism (4). The support mechanism (3) includes a pedal (31), both ends of which are fixedly connected to a support rod (32). A slider (33) is hinged to the top of the support rod (32). A pin (34) is slidably connected through the inner wall of the support rod (32). A limit block (35) is fixedly connected to one end of the pin (34) near the pedal (31). A spring (36) is fixedly connected to the side wall of the limit block (35).
2. A new type of electric tricycle multifunctional frame according to claim 1, characterized in that: The adjustment mechanism (4) includes a cargo box frame (41), and a guide rod (42) is fixedly connected to the bottom of the cargo box frame (41).
3. A new type of electric tricycle multifunctional frame according to claim 1, characterized in that: The inner wall of the frame body (1) is fixedly connected to a guide cylinder (43), which is sleeved on the outer wall of the guide rod (42) and can provide guidance for the guide rod (42).
4. A new type of electric tricycle multifunctional frame according to claim 1, characterized in that: A hydraulic cylinder (44) is hinged to the top of the frame body (1), and the piston rod of the hydraulic cylinder (44) is hinged to the side wall of the cargo box frame (41).
5. A new type of electric tricycle multifunctional frame according to claim 1, characterized in that: An anti-slip pad (38) is fixedly connected to the upper surface of the pedal (31).
6. A novel multi-functional frame for an electric tricycle according to claim 1, characterized in that: The slider (33) is slidably connected to the inner wall of the frame body (1), and a handle (37) is fixedly connected to the right side of the slider (33).
7. The novel multi-functional frame for an electric tricycle according to claim 1, characterized in that: The pedals (31) are distributed at least three sets at equal intervals along the axis of the support rod (32). The pedals (31) and the support rod (32) together form a "ladder"-like structure for assisting in getting on and off the vehicle frame or loading goods.
8. The novel multi-functional frame for an electric tricycle according to claim 1, characterized in that: The limiting block (35) is elastically connected to the support rod (32) via a spring (36).