Eccentric supporting ladder and vehicle

By employing multi-point fixed connections and a thin-plate design in the off-center ladder, the problem of insufficient connection strength in the off-center ladder is solved, achieving more stable vehicle support and convenient installation and disassembly, extending service life and reducing costs.

CN223821845UActive Publication Date: 2026-01-23TIANJIN AIMA VEHICLE TECH CO LTD
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Patent Information

Application Number
CN202520484111.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-01-23
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

The existing off-center ladder has low connection strength with the frame, and the weld is prone to cracking due to repeated rotation and collision, affecting normal use.

Method used

Design an off-center ladder that is fixedly connected to different sides of the vehicle's center tube and bottom tube by multiple plates of off-center fasteners, increasing the number of connection points. The design uses thin plate material and hanging spring column design to simplify the installation and disassembly process.

Benefits of technology

It improves the connection strength between the off-center ladder and the frame, extends service life, reduces production costs, and ensures connection stability and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a partial support ladder, which relates to the technical field of vehicle parts and mainly comprises a partial support fixing part and a partial support plate, the partial support plate is fixedly connected with the partial support fixing part and is used for arranging a ground support, the partial support fixing part comprises a first plate body and a second plate body, and the first plate body and the second plate body are vertical and are fixedly connected. The first plate body is provided with a first concave edge and a second concave edge which are fixedly connected, the first concave edge is used for being fixedly connected with the first side face of the vehicle middle pipe, the second concave edge is used for being fixedly connected with the second side face of the vehicle middle pipe, and the second plate body is provided with a third concave edge and a fourth concave edge which are fixedly connected. The third concave edge is used for being fixedly connected with the first side face of the vehicle bottom pipe, and the fourth concave edge is used for being fixedly connected with the second side face of the vehicle bottom pipe. The utility model further discloses a vehicle which comprises the inclined supporting ladder. The connecting strength of the branch-deviating ladder and the frame is high, and the branch-deviating ladder can be used for a long time.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to off-center ladders and vehicles. Background Technology

[0002] Electric vehicles need to be supported by ladders when parked. These ladders are mainly divided into side ladders, middle ladders, and rear ladders. As a support method for vehicles such as bicycles, electric vehicles, and motorcycles, side ladders are one of the main types of ladders. They can meet the basic support requirements of electric vehicles, facilitate parking, and ensure the stability of the electric vehicle.

[0003] Existing off-center ladders consist of an off-center support plate and a support plate. The off-center support plate is welded to the side of the center tube, and the support plate is welded to both the off-center support plate and the side of the bottom tube. Both the off-center support plate and the support plate are only fixedly connected to one side of the vehicle frame. This connection on the same plane provides limited resistance to external forces, resulting in relatively low strength. After repeated rotations and impacts from the ground support, the welded joints between the off-center support plate and the frame are prone to cracking, affecting the normal use of the off-center ladder. Therefore, there is an urgent need for an off-center ladder and vehicle to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a lateral ladder and vehicle to solve the problems existing in the prior art, so as to improve the connection strength between the lateral ladder and the vehicle frame and facilitate long-term use.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides an off-center support ladder, including an off-center support fixing member and an off-center support plate. The off-center support plate is fixedly connected to the off-center support fixing member and is used to provide a ground support. The off-center support fixing member includes a first plate and a second plate. The first plate is perpendicular to and fixedly connected to the second plate. The first plate is provided with a first concave edge and a second concave edge fixedly connected. The first concave edge is used to be fixedly connected to a first side of a vehicle's center tube, and the second concave edge is used to be fixedly connected to a second side of the vehicle's center tube. The second plate is provided with a third concave edge and a fourth concave edge fixedly connected. The third concave edge is used to be fixedly connected to a first side of a vehicle's bottom tube, and the fourth concave edge is used to be fixedly connected to a second side of the vehicle's bottom tube.

[0007] In some embodiments, the off-center fastener further includes a third plate, which is disposed parallel to the second plate and fixedly connected to the first plate, and is used to fixally connect to the first side of the vehicle's central tube.

[0008] In some embodiments, the thickness of the first plate, the second plate, and the third plate is 1.8 mm to 2.2 mm.

[0009] In some embodiments, the offset plate is inclined and gradually moves away from the vehicle undertube from high to low.

[0010] In some embodiments, the system also includes a spring-loaded post and a post hole, the post hole being disposed on the off-center support plate, the spring-loaded post being fixedly inserted into the post hole, and the spring-loaded post being connected to the ground support via a spring.

[0011] In some embodiments, multiple post holes are provided on the off-center support plate.

[0012] In some embodiments, a groove is provided at the end of the spring-hanging post away from the off-center support plate, and the groove is used to hang the spring.

[0013] In some embodiments, a fourth plate is also included, one end of which is connected to the first plate and the other end of which is connected to the second plate, and the fourth plate is inclined relative to the first plate and the second plate.

[0014] In some embodiments, the first plate, the second plate, the third plate, and the fourth plate are integrally formed.

[0015] This utility model also provides a vehicle, including the off-center ladder as described above.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The first plate of the off-center ladder provided by this utility model is perpendicular to and fixedly connected to the second plate. The first plate has a first concave edge and a second concave edge fixedly connected. The first concave edge is used to fixally connect to the first side of the vehicle's center tube, and the second concave edge is used to fixally connect to the second side of the vehicle's center tube. The second plate has a third concave edge and a fourth concave edge fixedly connected. The third concave edge is used to fixally connect to the first side of the vehicle's bottom tube, and the fourth concave edge is used to fixally connect to the second side of the vehicle's bottom tube. Compared with traditional off-center ladders, the off-center ladder of this utility model has more fixing points to the frame and can add connection points from different surfaces, providing fixing support from more directions. This makes the connection strength between the off-center ladder of this utility model and the frame higher, and allows for longer service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the structure of an off-center ladder in the prior art;

[0020] Figure 2 This is a schematic diagram of the first angle of the off-center ladder in some embodiments of this utility model;

[0021] Figure 3 This is a schematic diagram of the second angle of the off-center ladder in some embodiments of this utility model.

[0022] In the diagram: 101-Offset support plate; 102-Support plate; 103-Middle tube; 104-Bottom tube; 1-Offset support plate; 2-First plate; 21-First concave edge; 22-Second concave edge; 3-Second plate; 31-Third concave edge; 32-Fourth concave edge; 4-Third plate; 5-Fourth plate; 6-Vehicle middle tube; 61-First side of vehicle middle tube; 62-Second side of vehicle middle tube; 7-Vehicle bottom tube; 71-First side of vehicle bottom tube; 72-Second side of vehicle bottom tube; 8-Hanging spring post; 9-Post hole; 10-Ground support mounting hole. Detailed Implementation

[0023] 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.

[0024] The purpose of this utility model is to provide a lateral ladder and vehicle to solve the problems existing in the prior art, so as to improve the connection strength between the lateral ladder and the vehicle frame and facilitate long-term use.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] A schematic diagram of a partially supported ladder known to the inventor is shown below. Figure 1 As shown, the off-center ladder includes an off-center support plate 101 and a support plate 102. The off-center support plate is welded to the side of the middle tube 103, and the support plate 102 is welded to the off-center support plate 101 and to the side of the bottom tube 104. The off-center support plate 101 and the support plate 102 are only fixedly connected to one side of the electric vehicle frame. The connection on the same surface has relatively simple resistance to external forces and relatively low strength. After the ground support rotates and collides with the off-center ladder multiple times, the welded joints of the off-center support plate 101 and the support plate 102 with the frame are prone to cracking, affecting the normal use of the off-center ladder.

[0028] like Figures 2-3 As shown, this utility model provides an off-center ladder, including an off-center fixing member and an off-center plate 1. The off-center plate 1 is fixedly connected to the off-center fixing member and is used to set the ground support. The off-center fixing member includes a first plate 2 and a second plate 3. The first plate 2 and the second plate 3 are perpendicular to each other and fixedly connected. The first plate 2 is provided with a first concave edge 21 and a second concave edge 22 that are fixedly connected. Specifically, the first concave edge 21 and the second concave edge 22 are the two sides of the notch at the first plate 2. The first concave edge 21 is used to fixally connect to the first side surface 61 of the vehicle's central tube, preferably by welding, and the first concave edge 21 can fit snugly against the first side surface 61 of the vehicle's central tube. The second concave edge 22 is fixedly connected to the second side surface 62 of the vehicle's center tube, preferably by welding, and the second concave edge 22 can fit snugly against the second side surface 62 of the vehicle's center tube. The second plate 3 is provided with a third concave edge 31 and a fourth concave edge 32 fixedly connected. The third concave edge 31 is fixedly connected to the first side surface 71 of the vehicle's bottom tube, preferably by welding, and the third concave edge 31 can fit snugly against the first side surface 71 of the vehicle's bottom tube. The fourth concave edge 32 is fixedly connected to the second side surface 72 of the vehicle's bottom tube, preferably by welding, and the fourth concave edge 32 can fit snugly against the second side surface 72 of the vehicle's bottom tube. In this embodiment, the vehicle's center tube 6 and the vehicle's bottom tube 7 are fixedly connected. Compared with the traditional off-center ladder, the off-center ladder in this embodiment has more fixing positions to the frame and can increase the connection positions from different surfaces. It can fix and support the off-center ladder from multiple directions, making the connection between the off-center ladder and the frame more stable and reliable. This makes the connection strength between the off-center ladder and the frame in this embodiment higher and allows for longer use.

[0029] It should be noted that the first side 61 and the second side 62 of the vehicle's central tube are two adjacent sides in different directions. Specifically, the first side 61 is one of the left and right sides of the central tube 6, and the second side 62 is one of the front and rear sides of the central tube 6. Here, "front side" refers to the direction of vehicle travel, and "rear side" refers to the opposite direction. "Left and right sides" are perpendicular to the front and rear sides. Similarly, the first side 71 and the second side 72 of the vehicle's bottom tube are two adjacent sides in different directions. Specifically, the first side 71 is one of the left and right sides of the bottom tube, and the second side 72 is one of the upper and lower sides of the bottom tube 7. Here, "up and down" refers to the vertical direction of the vehicle, and "left and right" corresponds to the left and right sides of the central tube 6.

[0030] In some embodiments, the off-center support further includes a third plate 4, which is parallel to the second plate 3 and fixedly connected to the first plate 2. The third plate 4 is used to fixably connect to the first side 61 of the vehicle's center tube. Adding another fixed connection point to the side of the vehicle's center tube 6 makes the connection between the off-center ladder and the frame tighter, further distributing the force and better resisting external forces from various directions, making the off-center ladder more stable during use and less prone to shaking or displacement. The off-center plate 1 can be welded to the first plate 2, the second plate 3, and the third plate 4.

[0031] It should be noted that, where possible, a fixed base plate can also be set. The fixed base plate is set parallel to the first plate 2 and fixedly connected to the second plate 3 and the third plate 4. Then the fixed base plate is welded to the first side 71 of the vehicle bottom tube.

[0032] In some embodiments, the thickness of the first plate 2, the second plate 3, and the third plate 4 is 1.8mm-2.2mm. Traditionally, the thickness of the eccentric support plate 101 and the support piece 102 is generally at least 8mm, resulting in heavier materials and higher costs. In this embodiment, the thickness of the first plate 2, the second plate 3, and the third plate 4 only needs to be approximately the same as the thickness of the vehicle's bottom tube and middle tube, generally 1.8-2.2mm. This significantly reduces the overall weight of the eccentric support ladder and uses less material, effectively reducing production costs. Furthermore, the plate thickness in this embodiment is approximately the same as the thickness of the vehicle's bottom tube and middle tube, allowing for better adaptation to the vehicle structure, a closer fit during installation, and a better connection, avoiding problems such as inconvenience during installation or loose connections caused by excessive thickness differences.

[0033] In some embodiments, the offset support plate 1 is inclined and gradually moves away from the vehicle bottom tube 7 from high to low. The inclination angle of the offset support plate 1 is almost the same as the inclination angle between the ground support and the bottom surface after the ground support is spread out, which makes the installation of the ground support and the offset support plate 1 more convenient.

[0034] In some embodiments, the off-center ladder further includes a spring-loaded post 8 and a post hole 9. The post hole 9 is disposed on the off-center support plate 1, and the spring-loaded post 8 is fixedly inserted into the post hole 9. One end of the spring is hung on the spring-loaded post 8, and the other end is hung on the ground support. That is, the spring-loaded post 8 and the ground support are connected by the spring. The design of the spring-loaded post 8 being fixedly inserted into the post hole 9 and connected to the ground support by the spring makes the installation and disassembly process relatively simple and convenient. During installation, simply insert the spring-loaded post 8 into the post hole 9 and then connect the ground support with the spring. Disassembly also does not require complicated tools and operations, making it convenient to maintain, repair, or replace parts of the off-center ladder and improving the ease of use.

[0035] In some embodiments, multiple post holes 9 are provided in the horizontal direction of the offset plate 1, and the distance between each post hole 9 (specifically, the spring post 8 inserted into different post holes 9) and the spring of the ground brace is different. Traditionally, the offset plate only has one post hole 9. However, when the spring is connected to the ground brace, due to long-term use, the length of the spring may be stretched, and the original distance between the spring post 8 and the ground brace may no longer be suitable, requiring a greater distance to install the elongated spring. The traditional single post hole 9 setting cannot meet this requirement. In this embodiment, multiple post holes 9 are provided. When connecting the spring to the ground brace, the spring post 8 can be selected to be inserted into a suitable post hole 9 to achieve a stable connection between the spring and the ground brace. This provides greater versatility.

[0036] In a preferred embodiment, two column holes 9 are arranged side by side on the eccentric support plate 1. The eccentric support plate 1 is provided with a ground support mounting hole 10, which is located directly below one of the column holes 9 and is used to install the ground support. After the ground support is installed in the ground support mounting hole 10, the distances between the two column holes 9 and the hanging spring of the ground support are different.

[0037] In some embodiments, one end of the spring-hanging post 8 is inserted into the post hole 9 on the off-center support plate 1, and the end of the spring-hanging post 8 away from the off-center support plate 1 is provided with a groove for hanging the spring. The groove allows the end of the spring to be engaged in the groove, providing a clear and precise installation position for the spring, ensuring that the spring is accurately positioned during installation, avoiding problems such as unstable connection or uneven force caused by deviation in the installation position of the spring, thereby making the connection between the ground support and the off-center support plate 1 more reliable and improving the overall stability of the off-center support ladder structure. Moreover, the presence of the groove increases the friction and constraint between the spring and the spring-hanging post 8, effectively preventing the spring from slipping off the spring-hanging post 8 due to external pulling, vibration, or other reasons during use.

[0038] In some embodiments, the off-center ladder further includes a fourth plate 5, one end of which is connected to the first plate 2 and the other end to the second plate 3. The fourth plate 5 is inclined relative to the first plate 2 and the second plate 3, specifically, it gradually moves away from the vehicle's central tube 6 from high to low. On the one hand, the fourth plate 5 can support the first plate 2 and the second plate 3, because the first plate 2, the second plate 3, and the fourth plate 5 can form a triangular structure with high stability. On the other hand, if the first plate 2 and the second plate 3 are directly connected, it would require the use of two more right-angled sides of material. However, the arrangement in this embodiment uses the material of the hypotenuse of a right triangle, which uses less material and saves costs. Therefore, this arrangement of the fourth plate 5 can save materials and improve the stability of the connection between the first plate 2 and the second plate 3.

[0039] In some embodiments, the first plate 2, the second plate 3, the third plate 4, and the fourth plate 5 are integrally formed. This integral forming avoids weak points that may arise from splicing multiple components, and the absence of welded or riveted seams between the plates makes the overall structure more robust. When subjected to external forces, it can distribute stress more evenly, effectively preventing the overall failure of the off-center ladder due to damage to the connection points, thus improving the structural strength and durability of the off-center ladder.

[0040] Example 2

[0041] This utility model also provides a vehicle, including the off-center ladder as described in Embodiment 1. The off-center ladder has a high connection strength with the frame, which is beneficial for long-term use. It should be noted that the vehicle in this embodiment can be a two-wheeled electric vehicle, a two-wheeled bicycle, or a two-wheeled motorcycle, etc.

[0042] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A staircase with an off-center support, characterized in that: The device includes an off-center support and an off-center support plate. The off-center support plate is fixedly connected to the off-center support and is used to provide a ground support. The off-center support includes a first plate and a second plate. The first plate is perpendicular to and fixedly connected to the second plate. The first plate has a first concave edge and a second concave edge fixedly connected. The first concave edge is fixedly connected to a first side of the vehicle's center tube, and the second concave edge is fixedly connected to a second side of the vehicle's center tube. The second plate has a third concave edge and a fourth concave edge fixedly connected. The third concave edge is fixedly connected to a first side of the vehicle's bottom tube, and the fourth concave edge is fixedly connected to a second side of the vehicle's bottom tube.

2. The off-center ladder according to claim 1, characterized in that: The off-center fastener also includes a third plate, which is arranged parallel to the second plate and fixedly connected to the first plate. The third plate is used to fixally connect to the first side of the vehicle's central tube.

3. The off-center ladder according to claim 2, characterized in that: The thickness of the first plate, the second plate, and the third plate is 1.8mm-2.2mm.

4. The off-center ladder according to claim 1, characterized in that: The offset plate is inclined and gradually moves away from the vehicle bottom tube from high to low.

5. The off-center ladder according to claim 1, characterized in that: It also includes a spring-loaded post and a post hole. The post hole is provided on the off-center support plate, and the spring-loaded post is fixedly inserted into the post hole. The spring-loaded post is connected to the ground support through a spring.

6. The off-center ladder according to claim 5, characterized in that: Multiple column holes are provided on the off-center support plate.

7. The off-center ladder according to claim 5, characterized in that: The end of the hanging spring post away from the off-center support plate is provided with a groove, which is used to hang the hanging spring.

8. The off-center ladder according to claim 2, characterized in that: It also includes a fourth plate, one end of which is connected to the first plate and the other end of which is connected to the second plate, and the fourth plate is inclined relative to the first plate and the second plate.

9. The off-center ladder according to claim 8, characterized in that: The first plate, the second plate, the third plate, and the fourth plate are integrally formed.

10. A vehicle, characterized in that: Includes the off-center ladder as described in any one of claims 1-9.