Lower yoke plate of electro-tricycle

By introducing positioning, reinforcement, and sleeve structures into the lower connecting plate of the electric tricycle, the problem of weak connection between the steering rod mounting plate and the shock absorber mounting plate was solved, achieving higher stability and reduced maintenance costs.

CN224256852UActive Publication Date: 2026-05-19XUZHOU RONGTENG LOCOMOTIVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUZHOU RONGTENG LOCOMOTIVE CO LTD
Filing Date
2025-08-06
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The connection between the steering rod mounting plate and the shock absorber mounting plates on both sides of the lower connecting plate of the electric tricycle is relatively weak, and it is prone to breakage or deformation during impact or vibration, which affects stability.

Method used

The system employs positioning, reinforcement, and sleeve structures. By combining positioning plates and positioning grooves, the connection area is increased, and bolts and clamps are used for reinforcement to form a rigid whole that evenly distributes the load.

Benefits of technology

This improves the connection stability between the steering rod mounting plate and the shock absorber mounting plate, avoids breakage or deformation caused by single-point stress, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lower yoke plate of an electro-tricycle, which belongs to the technical field of lower yoke plates and comprises a steering rod mounting plate and two shock absorber mounting plates. The positioning structure is arranged between the steering rod mounting plate and the shock absorber mounting plate and is used for preliminarily connecting the steering rod mounting plate and the shock absorber mounting plate; and the positioning structure comprises a positioning plate arranged on the steering rod mounting plate. The lower yoke plate of the electro-tricycle is mainly formed by splicing the steering rod mounting plate and the shock absorber mounting plate, and by the adoption of the split type design, when the steering rod mounting plate or the shock absorber mounting plate is deformed and damaged, only the corresponding single plate needs to be replaced, the whole lower yoke plate does not need to be detached, and therefore the whole lower yoke plate is convenient to assemble and disassemble. And the contact area of the joint of the steering rod mounting plate and the shock absorber mounting plate can be increased through the arrangement of the positioning plate and the positioning groove, so that the shearing force between the steering rod mounting plate and the shock absorber mounting plate can be dispersed through a larger area, and fracture or deformation caused by single-point stress is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of lower connecting plate technology, specifically to a lower connecting plate for an electric tricycle. Background Technology

[0002] The lower link plate of an electric tricycle is a key component of the vehicle's front fork system. It is mainly connected to the lower end of the steering rod and the end of the shock absorber. It is used to accurately transmit steering commands, control the steering angle of the front wheels, and allow the vehicle to flexibly change its direction of travel.

[0003] Chinese Patent Publication No. CN218863165U discloses a maintenance-friendly lower connecting plate for a shock absorber, comprising a base plate and a shock-absorbing shaft. A threaded connector is fitted into the inner wall of the assembly hole at the top of the base plate. A connecting rod is movably mounted in the middle of the snap-fit ​​groove sidewalls on the left and right sides of the base plate. A connecting plate is movably mounted on the outer side of the base plate via a sleeve that passes through the side of the connecting rod. A locating pin is vertically mounted on the top surface of the connecting plate adjacent to the base plate. A pressure spring is obliquely mounted between two locating pins above the base plate and the connecting plate. A snap-fit ​​hole is vertically opened on the top surface of the connecting plate away from the locating pins. The shock-absorbing shaft is vertically mounted in the middle of the side of the base plate via a threaded connector. This invention features a connecting plate mounted on the side of the base plate via a connecting rod, with rotation controlled by locating pins and a pressure spring. The shock-absorbing shaft is mounted in the assembly hole on the side of the base plate via a threaded connector. The segmented disassembly structure facilitates inspection and replacement while reducing maintenance costs, resulting in good performance.

[0004] In the aforementioned prior art, by designing the lower connecting plate of the electric tricycle into a segmented structure, the damaged parts can be replaced individually when the lower connecting plate components are damaged or deformed, thus reducing maintenance costs. However, the connection between the steering rod mounting plate and the shock absorber mounting plates on both sides of the lower connecting plate is relatively weak and has a small contact area. When subjected to impact or vibration, the connection is prone to breakage or deformation, affecting stability. Utility Model Content

[0005] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a lower connecting plate for electric tricycles, thereby solving the problem mentioned in the background art that the connection between the steering rod mounting plate and the shock absorber mounting plates on both sides of the lower connecting plate is relatively weak, making it prone to breakage or deformation when subjected to impact or vibration.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A lower connecting plate for an electric tricycle, comprising:

[0008] The steering rod mounting plate and two shock absorber mounting plates; characterized in that it further includes:

[0009] A positioning structure is arranged between the steering rod mounting plate and the shock absorber mounting plate to initially connect the steering rod mounting plate and the shock absorber mounting plate;

[0010] The reinforcement structure is arranged on the steering rod mounting plate and the shock absorber mounting plate to reinforce the connection between the steering rod mounting plate and the shock absorber mounting plate;

[0011] A socket structure is placed on a reinforced structure to support the reinforced structure and increase its stability.

[0012] Preferably, the positioning structure includes:

[0013] Positioning plate, placed on the steering rod mounting plate;

[0014] The positioning groove is formed inside the shock absorber mounting plate, and the positioning plate is inserted into the positioning groove.

[0015] Preferably, the positioning structure further includes a plug-in component, which is arranged on the shock absorber mounting plate and is used to be inserted into the positioning plate to limit the position of the shock absorber mounting plate and the positioning plate.

[0016] Preferably, the plug-in assembly includes:

[0017] The guide rod is positioned on one side of the shock absorber mounting plate;

[0018] The U-shaped plate is slidably fitted onto the guide rod;

[0019] Trapezoidal insert rods are arranged on one side of the U-shaped plate and slidably installed inside the shock absorber mounting plate;

[0020] A positioning socket is provided inside the positioning plate, and the trapezoidal plug is inserted into the positioning socket.

[0021] Preferably, the plug-in assembly further includes:

[0022] A baffle is positioned at one end of the guide rod;

[0023] A spring is positioned between the U-shaped plate and the baffle, and the spring is slidably sleeved on the baffle.

[0024] Preferably, the reinforcement structure includes:

[0025] Two pads are located on either side of the steering rod mounting plate and the two shock absorber mounting plates, respectively;

[0026] Several bolts are grouped together and inserted into the corresponding shock absorber mounting plate, positioning plate and pad;

[0027] Bolt group two is inserted inside the steering rod mounting plate and the two pads.

[0028] Preferably, the reinforcement structure further includes several limiting plates, which are arranged on one side of the corresponding pad and are in contact with one side of the U-shaped plate.

[0029] Preferably, the socket structure includes:

[0030] The clamp is positioned on one side of the corresponding pad and is movably fitted onto bolt group two;

[0031] Bolt group three is inserted inside the clamp.

[0032] The beneficial effects of this utility model are as follows:

[0033] This utility model discloses that the lower connecting plate of the electric tricycle is mainly composed of a steering rod mounting plate and a shock absorber mounting plate. During installation, the shock absorber mounting plate can be fitted onto the positioning plate through the positioning groove. After being fully fitted, the trapezoidal insert will be inserted into the positioning hole to fix the connection between the shock absorber mounting plate and the positioning plate. By adopting a split design, if the steering rod mounting plate or the shock absorber mounting plate is deformed or damaged, only the corresponding single plate needs to be replaced, without disassembling the entire lower connecting plate. Furthermore, the positioning plate and the positioning groove can increase the contact area at the connection between the steering rod mounting plate and the shock absorber mounting plate, so that the shear force between the steering rod mounting plate and the shock absorber mounting plate can be distributed over a larger area, avoiding breakage or deformation caused by single-point stress.

[0034] In this invention, after the steering rod mounting plate and the shock absorber mounting plate are installed, two pads can be fixed together on the steering rod mounting plate and the shock absorber mounting plate using several bolts. At the same time, the clamp is clamped on the steering rod, so that the steering rod mounting plate, the shock absorber mounting plate and the two pads form a rigid whole, reducing the relative displacement between components. The upper and lower pads can act as a force transmission medium, evenly distributing the steering and shock absorption loads to the entire lower connecting plate structure. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the structure of the lower connecting plate of an electric tricycle provided in this embodiment of the utility model;

[0037] Figure 2 A bottom view of the lower connecting plate of an electric tricycle provided for an embodiment of this utility model;

[0038] Figure 3 A cross-sectional structural diagram of the lower connecting plate of an electric tricycle provided for an embodiment of this utility model;

[0039] Figure 4 An exploded structural diagram of the lower connecting plate of an electric tricycle provided for an embodiment of this utility model;

[0040] Figure 5 An exploded view of the pad structure of the lower connecting plate of an electric tricycle, provided as an embodiment of this utility model;

[0041] Figure 6 A schematic diagram of a U-shaped plate structure for the lower connecting plate of an electric tricycle provided in an embodiment of this utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Steering rod mounting plate; 101. Shock absorber mounting plate; 2. Positioning plate; 201. Positioning groove; 202. Guide rod; 203. U-shaped plate; 204. Trapezoidal insert rod; 205. Positioning insertion hole; 206. Baffle; 207. Spring; 3. Pad; 301. Bolt group one; 302. Bolt group two; 303. Limiting plate; 4. Clamp; 401. Bolt group three. Detailed Implementation

[0044] 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.

[0045] Example 1:

[0046] like Figures 1 to 6 As shown, this utility model provides a lower connecting plate for an electric tricycle, including: a steering rod mounting plate 1 and two shock absorber mounting plates 101; it also includes a positioning structure arranged between the steering rod mounting plate 1 and the shock absorber mounting plates 101 for initial connection.

[0047] The positioning structure includes a positioning plate 2 arranged on the steering rod mounting plate 1 and a positioning groove 201 opened inside the shock absorber mounting plate 101. The positioning plate 2 is inserted into the positioning groove 201. During installation, the shock absorber mounting plates 101 on both sides can be sleeved on the positioning plate 2 through the positioning groove 201.

[0048] The positioning structure also includes a plug-in assembly arranged on the shock absorber mounting plate 101 for insertion into the positioning plate 2 to limit the position of the shock absorber mounting plate 101 and the positioning plate 2.

[0049] Specifically, the plug-in assembly includes a guide rod 202 arranged on one side of the shock absorber mounting plate 101, a U-shaped plate 203 slidably sleeved on the guide rod 202, a trapezoidal plug rod 204 arranged on one side of the U-shaped plate 203 and slidably installed inside the shock absorber mounting plate 101, and a positioning hole 205 opened inside the positioning plate 2. The trapezoidal plug rod 204 is inserted into the positioning hole 205. During the process of sleeve mounting plate 101, the positioning plate 2 will press against the inclined surface of the trapezoidal plug rod 204 inside the positioning groove 201. Subsequently, the trapezoidal plug rod 204 will be pushed to drive the U-shaped plate 203 to move, so that the U-shaped plate 203 will slide on the guide rod 202. When the positioning plate 2 is completely moved into the positioning groove 201, the trapezoidal plug rod 204 will correspond to the position of the positioning hole 205. At this time, the U-shaped plate 203 can be pushed to drive the trapezoidal plug rod 204 to insert into the positioning hole 205, thereby restricting the position of the shock absorber mounting plate 101.

[0050] Specifically, the plug-in assembly also includes a baffle 206 arranged at one end of the guide rod 202, and a spring 207 arranged between the U-shaped plate 203 and the baffle 206. The spring 207 is slidably sleeved on the baffle 206. During the movement of the U-shaped plate 203, the spring 207 will be compressed. When the trapezoidal plug rod 204 corresponds to the position of the positioning plug hole 205, the compressed spring 207 will push the U-shaped plate 203 and the trapezoidal plug rod 204 to move and reset.

[0051] Example 2:

[0052] Based on Embodiment 1, in order to reinforce the connection between the steering rod mounting plate 1 and the shock absorber mounting plate 101, a reinforcement structure is arranged on the steering rod mounting plate 1 and the shock absorber mounting plate 101.

[0053] The reinforcement structure includes two pads 3 located on both sides of the steering rod mounting plate 1 and the two shock absorber mounting plates 101, a number of bolt groups 1 301 inserted into the corresponding shock absorber mounting plates 101, positioning plates 2 and pads 3, and bolt groups 2 302 inserted into the steering rod mounting plate 1 and the two pads 3. The two pads 3 are placed on both sides of the steering rod mounting plate 1 and the shock absorber mounting plate 101, respectively. Then, bolt groups 1 301 are inserted into the shock absorber mounting plates 101, positioning plates 2 and pads 3 on both sides and tightened. Subsequently, bolt groups 2 302 can be inserted into the pads 3 and the steering rod mounting plate 1 to reinforce the connection of the shock absorber mounting plates 101 on both sides.

[0054] The reinforcement structure also includes several limiting plates 303 arranged on one side of the corresponding pad 3. The limiting plates 303 are in contact with one side of the U-shaped plate 203. When the pad 3 is installed, the limiting plates 303 will be moved to protect one side of the U-shaped plate 203, thereby restricting the position of the U-shaped plate 203 and the trapezoidal insert 204 to prevent them from loosening and thus improve stability.

[0055] Example 3:

[0056] Based on Example 2, in order to further improve the stability of the reinforced structure, a sleeve structure is arranged on the reinforced structure.

[0057] The sleeve structure includes a clamp 4 arranged on one side of the corresponding pad 3 and movably sleeved on the bolt group 2 302, and a bolt group 3 401 inserted inside the clamp 4. While the steering rod is passing through the steering rod mounting plate 1, the steering rod can pass through the clamp 4, and then the bolt group 3 401 is passed through and tightened, so that the clamp 4 is squeezed and clamped on the steering rod.

[0058] Working principle: Refer to the installation instructions. Figure 4In the first position, the shock absorber mounting plates 101 on both sides are fitted onto the positioning plate 2 through the positioning groove 201. During the fitting process, the positioning plate 2 is pressed against the inclined surface of the trapezoidal insert 204 inside the positioning groove 201. Subsequently, the trapezoidal insert 204, under pressure, drives the U-shaped plate 203 to move, causing the U-shaped plate 203 to slide on the guide rod 202 and compress the spring 207. When the positioning plate 2 is fully moved into the positioning groove 201, the trapezoidal insert 204 will correspond to the position of the positioning hole 205. At this time, the compressed spring 207 will push the U-shaped plate 203 to move and reset, causing the U-shaped plate 203 to drive the trapezoidal insert 204 into the positioning hole 205, thus restricting the position of the shock absorber mounting plate 101 and completing the initial positioning of the shock absorber mounting plate 101. Then, two pads 3 are placed on both sides of the steering rod mounting plate 1 and the shock absorber mounting plate 101 respectively, and pressed against their surfaces. Bolt group 301 is inserted into the shock absorber mounting plate 101, positioning plate 2 and pad 3 and tightened to reinforce the connection of the shock absorber mounting plates 101 on both sides. Then bolt group 302 can be inserted into the pad 3 and steering rod mounting plate 1 to reinforce the position of the pad 3, so that the steering rod mounting plate 1, shock absorber mounting plate 101 and pad 3 form a whole, enhancing the stability of the structure. While the steering rod is inserted into the steering rod mounting plate 1, the steering rod can be passed through the clamp 4, and then bolt group 401 is inserted and tightened, so that the clamp 4 is squeezed and clamped on the steering rod, further improving the connection stability of the pad 3. When disassembling, simply follow the reverse operation. First, remove the pad 3, then pull the U-shaped plates 203 on both sides to loosen the trapezoidal insert 204 from the positioning insertion hole 205, and then the shock absorber mounting plate 101 can be pulled off the positioning plate 2.

[0059] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A lower connecting plate for an electric tricycle, comprising a steering rod mounting plate (1) and two shock absorber mounting plates (101); characterized in that, Also includes: A positioning structure is arranged between the steering rod mounting plate (1) and the shock absorber mounting plate (101) for preliminary connection between the steering rod mounting plate (1) and the shock absorber mounting plate (101); A reinforcing structure is arranged on the steering rod mounting plate (1) and the shock absorber mounting plate (101) to reinforce the connection between the steering rod mounting plate (1) and the shock absorber mounting plate (101); A socket structure is placed on a reinforced structure to support the reinforced structure and increase its stability.

2. The lower connecting plate of an electric tricycle as described in claim 1, characterized in that, The positioning structure includes: Positioning plate (2) is arranged on steering rod mounting plate (1); The positioning groove (201) is formed inside the shock absorber mounting plate (101), and the positioning plate (2) is inserted into the positioning groove (201).

3. The lower connecting plate of an electric tricycle as described in claim 1, characterized in that, The positioning structure also includes a plug-in component, which is arranged on the shock absorber mounting plate (101) and is used to insert into the positioning plate (2) to limit the position of the shock absorber mounting plate (101) and the positioning plate (2).

4. The lower connecting plate of an electric tricycle as described in claim 3, characterized in that, The plug-in assembly includes: The guide rod (202) is arranged on one side of the shock absorber mounting plate (101); The U-shaped plate (203) is slidably sleeved on the guide rod (202); A trapezoidal insert (204) is arranged on one side of the U-shaped plate (203) and slidably installed inside the shock absorber mounting plate (101); The positioning socket (205) is opened inside the positioning plate (2), and the trapezoidal plug (204) is inserted into the positioning socket (205).

5. The lower connecting plate of an electric tricycle as described in claim 3, characterized in that, The plug-in assembly further includes: A baffle (206) is arranged at one end of the guide rod (202); A spring (207) is arranged between the U-shaped plate (203) and the baffle (206), and the spring (207) is slidably sleeved on the baffle (206).

6. The lower connecting plate of an electric tricycle as described in claim 1, characterized in that, The reinforcement structure includes: Two pads (3) are located on both sides of the steering rod mounting plate (1) and the two shock absorber mounting plates (101), respectively; A number of bolts (301) are inserted into the interior of the corresponding shock absorber mounting plate (101), positioning plate (2) and pad (3); Bolt group two (302) is inserted inside the steering rod mounting plate (1) and the two pads (3).

7. The lower connecting plate of an electric tricycle as described in claim 1, characterized in that, The reinforcement structure also includes several limiting plates (303), which are arranged on one side of the corresponding pad (3) and are in contact with one side of the U-shaped plate (203).

8. The lower connecting plate of an electric tricycle as described in claim 1, characterized in that, The socket structure includes: The clamp (4) is arranged on one side of the corresponding pad (3) and is movably sleeved on the bolt group two (302); Bolt group three (401) is inserted inside the clamp (4).