Plate spring lifting lug structure special for large electric tricycle
By designing a leaf spring lug structure with multiple welding surfaces matching the frame, the problem of easy breakage at the welding points of the leaf spring lugs of electric tricycles is solved, achieving higher connection tightness and service life.
Patent Information
- Application Number
- CN202423134390.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The welding joints of the leaf spring lugs of existing electric tricycles are prone to breakage, resulting in a shortened service life.
A leaf spring lug structure specially designed for large electric tricycles is designed. By setting multiple welding surfaces and making them have the same angle as the leaf spring lug where the frame is mounted, the plate is bent to form a structure without welding points, thereby increasing the connection tightness and compressive and tensile strength.
The connection between the leaf spring eye and the frame is strengthened, which prolongs the service life and enhances the integrity of the overall structure.
Smart Images
Figure CN223420880U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric tricycle components, and more specifically to a special leaf spring hanging ear structure for large electric tricycles. Background Art
[0002] Leaf spring lugs are primarily mounted on the vehicle frame and, in conjunction with the leaf spring, form a shock-absorbing assembly, enhancing rider comfort. However, existing leaf spring lugs are welded to the vehicle frame from a single surface. As a result, the weld becomes a stress point during use, often subject to both compressive and tensile forces. This makes the weld prone to breakage, shortening the vehicle's service life. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a leaf spring lifting ear structure specially designed for large electric tricycles. The utility model can achieve perfect fit with the tricycle frame, improve the tightness of the connection, thereby making the welding more firm, and the leaf spring lifting ear has better compression and tensile strength, thereby extending its service life.
[0004] The purpose of the utility model is achieved through the following technical solutions: a leaf spring lifting ear structure specially used for large electric tricycles, comprising a first welding plate and two side plates connected by the first welding plate, one side of the two side plates perpendicular to the first welding plate is provided with a leaf spring connecting hole, and the other side is provided with a second welding plate, and the angle between the second welding plate and the first welding plate is the same as the angle of the leaf spring lifting ear mounted on the tricycle frame, a vertical plate and a spacing expansion plate are further provided between the first welding plate and the two side plates, the first welding plate, the vertical plate, the spacing expansion plate and the side plates are connected in sequence, a vertical plate and a spacing adjustment plate are provided between the second welding plate and the two side plates, the first welding plate, the vertical plate, the spacing adjustment plate and the side plates are connected in sequence, wherein one side of the vertical plate is docked with one side of the vertical plate, and one side of the spacing expansion plate is docked with one side of the spacing adjustment plate.
[0005] In one preferred embodiment, the width of the first welding plate is the same as the width of the rectangular tube constituting the tricycle frame.
[0006] In one preferred embodiment, the two sides of the side plate that are not connected to the first welding plate and the second welding plate are provided with reinforcing flanges.
[0007] In one preferred embodiment, annular bosses are provided on opposite sides of the two side plates, and the annular bosses are concentric with the leaf spring connecting holes.
[0008] The beneficial effects of the present invention are as follows: the present invention sets a plurality of welding surfaces, and the angles of the welding surfaces are the same as the angles of the leaf spring lugs installed on the tricycle frame, so that the leaf spring lugs can fit perfectly on the tricycle frame, thereby improving the tightness of the connection, making the welding more firm, and the leaf spring lugs have better compression and tensile strength, thereby extending the service life. At the same time, the leaf spring lugs are made by bending the plate, so that the leaf spring lugs themselves have no welding points, so that the overall structure is complete and has better strength, further improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0010] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 This is a schematic diagram of the effect of using the utility model;
[0012] In the figure, 1-first welding plate, 2-side plate, 21-reinforced flange, 3-leaf spring connecting hole, 4-second welding plate, 5-vertical plate, 6-spacing expansion plate, 7-vertical plate, 8-spacing adjustment plate, 9-circular boss, 10-tricycle frame. DETAILED DESCRIPTION
[0013] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0015] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0016] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.
[0017] The terms "first", "second", "third", etc. are only used for distinction and description and should not be understood as indicating or implying relative importance.
[0018] The terms "parallel" and "perpendicular" do not necessarily mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that the direction is more parallel than "perpendicular", not that the structure must be completely parallel, but rather that it can be slightly tilted.
[0019] Terms such as "horizontal," "vertical," and "overhanging" do not necessarily mean that a component must be absolutely horizontal, vertical, or overhanging. A slight tilt is permitted. For example, "horizontal" simply means that its direction is more horizontal than "vertical." It does not mean that the structure must be completely horizontal, but rather that a slight tilt is permitted.
[0020] Furthermore, terms like "approximately" and "substantially" are intended to clarify that the relevant content does not require absolute precision, but rather allows for certain deviations. For example, "approximately equal" does not simply mean absolute equality. Because absolute equality is difficult to achieve in actual production and operational processes, certain deviations generally exist. Therefore, in addition to absolute equality, "approximately equal" also encompasses the aforementioned situation of certain deviations. Taking this as an example, in other contexts, unless otherwise specified, terms like "approximately" and "substantially" have similar meanings as described above.
[0021] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0022] See Figure 1 and Figure 2The two wheels are connected by a plurality of holes, each of which is connected to the first wheel frame by a plurality of holes, and the two wheels are connected by a plurality of holes. The utility model provides multiple welding surfaces, and the angles of the welding surfaces are the same as the angles of the leaf spring ears installed on the tricycle frame, so that the leaf spring ears can fit perfectly on the tricycle frame, improving the tightness of the connection, making the welding more firm, and the leaf spring ears have better compression and tensile strength, thereby extending the service life. At the same time, the leaf spring ears are made by bending the plate, so that the leaf spring ears themselves have no welding points, so that the overall structure is complete and the strength is better, further improving the service life.
[0023] Preferably, the width of the first welding plate is the same as the width of the rectangular tube of the tricycle frame, thereby ensuring perfect welding with the tricycle frame and improving the overall connection strength.
[0024] Preferably, the two sides of the side panels that are not connected to the first welding plate and the second welding plate are provided with reinforcing flanges, which can effectively enhance the structural strength of the side panels and also prevent injuries caused by touching sharp edges during assembly.
[0025] Preferably, an annular boss is provided on opposite sides of the two side plates, and the annular boss is concentric with the leaf spring connection hole. The annular boss can effectively prevent the leaf spring from directly contacting the inner side of the side plates, reduce wear of the side plates, and extend the service life of the leaf spring lug.
[0026] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or the techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the technology and scope of the present invention shall be within the scope of protection of the appended claims.
Claims
1. A leaf spring hanging ear structure specially designed for large electric tricycles, characterized by: It includes a first welding plate and two side plates connected by the first welding plate, one side of the two side plates perpendicular to the first welding plate is provided with a leaf spring connecting hole, and the other side is provided with a second welding plate, and the angle between the second welding plate and the first welding plate is the same as the angle of the leaf spring hanging ear for mounting the tricycle frame, a vertical plate and a spacing expansion plate are also provided between the first welding plate and the two side plates, the first welding plate, the vertical plate, the spacing expansion plate and the side plates are connected in sequence, a vertical plate and a spacing adjustment plate are provided between the second welding plate and the two side plates, the first welding plate, the vertical plate, the spacing adjustment plate and the side plates are connected in sequence, wherein one side of the vertical plate is docked with one side of the vertical plate, and one side of the spacing expansion plate is docked with one side of the spacing adjustment plate.
2. The leaf spring eye structure for large electric tricycles according to claim 1, characterized in that: The width of the first welding plate is the same as the width of the rectangular tube constituting the tricycle frame.
3. The leaf spring eye structure for large electric tricycles according to claim 1, characterized in that: The two sides of the side plate that are not connected to the first welding plate and the second welding plate are provided with reinforcing flanges.
4. The leaf spring eye structure for large electric tricycles according to claim 1, characterized in that: Circular bosses are provided on opposite sides of the two side plates, and the circular bosses are concentric with the leaf spring connecting holes.