Front support of scooter
The double-tube cross structure and wear-resistant layer design made of aluminum alloy solve the problem of the heavy weight of the scooter front fork bracket, achieving a balance between lightweight and structural strength, and is suitable for aluminum alloy die casting.
Patent Information
- Application Number
- CN202520328661.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing scooter front fork bracket uses a welded carbon steel tube structure, which results in a large weight and is not conducive to the overall weight reduction and lightweighting of the scooter.
The design employs a double-tube cross structure made of aluminum alloy, with the first and second horizontal tubes intersecting and connecting in the middle. A wear-resistant layer is fitted at the front axle connecting column to form a stable connection, avoiding the need for a single tube design with a large wall thickness.
It achieves lightweight design for the scooter's front support while ensuring structural strength and connection stability, and is suitable for die-casting aluminum alloy.
Smart Images

Figure CN223618861U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scooter frames, and in particular to a scooter front support. Background Technology
[0002] Chinese invention patent publication number CN119160319A discloses a scooter whose front fork bracket adopts a conventional single-tube inclined connection structure. This structure is usually constructed by welding carbon steel pipes, which has the advantages of simple structure and low cost. However, the carbon steel components are heavy, which is not conducive to the overall weight reduction and lightweighting of the scooter. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide a front support for a scooter, so as to ensure structural strength while using aluminum alloy material.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A scooter front support includes a first horizontal tube and a second horizontal tube connected between the front axle and the top tube. The first horizontal tube and the second horizontal tube are connected at the middle position. The front ends of the first horizontal tube and the second horizontal tube are provided with front axle connecting posts, and the front axle connecting posts are rotatably sleeved on the front axle.
[0006] In a preferred embodiment of the present invention, the front side of the first horizontal tube has a forward bend such that the front end of the first horizontal tube extends parallel to the second horizontal tube.
[0007] In a preferred embodiment of the present invention, the first horizontal tube further includes a left branch arm and a right branch arm that extend backward toward the two sides.
[0008] In a preferred embodiment of the present invention, the front axle connecting post is sleeved on the outer periphery of the front axle through a front axle through hole, and a wear-resistant layer is provided inside the front axle through hole.
[0009] In a preferred embodiment of this utility model, the wear-resistant layer is a polyurethane wear-resistant layer.
[0010] In a preferred embodiment of this utility model, the rear end cross-section of the second horizontal tube is U-shaped.
[0011] The beneficial effects of this utility model are as follows:
[0012] The scooter front support provided by this utility model has a double-tube cross structure that avoids the design of a single tube connection with a large wall thickness. This is beneficial for the front support to be die-cast from aluminum alloy, and on the other hand, it ensures the connection strength between the front axle and the upright tube. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a front view of the front support of this utility model.
[0015] Figure 2 This is the axonometric view of the front support.
[0016] Figure 3 This is a top view of the front support. Detailed Implementation
[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. The above description is for the purpose of simplifying the description of this utility model and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0018] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature, but do not exclude the presence of one or more other features.
[0019] When a component is described in the specification as being "on", "fixed" to, "connected" to, or "joined" to another component, the component may be directly located on, fixed to, connected to, joined to, or in contact with the other component, or there may be an intermediate component present.
[0020] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Therefore, a first element may be referred to as a second element without departing from the teachings of this application.
[0021] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements.
[0022] Figure 1The overall structure of this front support is shown, mainly consisting of a first horizontal tube 20 and a second horizontal tube 30 arranged in a cross pattern. The first horizontal tube 20 and the second horizontal tube 30 are connected to the front axle of the scooter via a front axle connecting post 10. This double-tube cross structure avoids the design of a single tube connection with a large wall thickness, which is beneficial for the use of die-cast aluminum alloy for the front support, and at the same time ensures the connection strength between the front axle and the upright tube. The cross structure also optimizes the layout space, allowing the first horizontal tube 20 and the second horizontal tube 30 to be arranged within a limited space.
[0023] Reference Figure 2 and Figure 3 The first horizontal tube 20 has a front bend 24 at its front end, ensuring that after intersecting with the second horizontal tube 30, its front part 24a remains parallel to the second horizontal tube 30 and connected to the front axle connecting post 10, thus ensuring stable force transmission between the first horizontal tube 20, the second horizontal tube 30, and the front axle connecting post 10. The first horizontal tube 20 also has a left branch arm 21 and a right branch arm 22 extending to both sides, forming a three-pronged structure with the second horizontal tube 30 to connect with the scooter platform. The first horizontal tube 20 located at the connection point of the central axis is also designed with a U-shaped cross section 31. Since the load-bearing requirements at the central axis are high, increasing the wall thickness of the first horizontal tube 20 would be detrimental to liquid forging. Therefore, the U-shaped cross section 31 avoids the need for a large wall thickness design.
[0024] In a preferred embodiment, the front axle connecting post 10 is connected to the front axle via an internal front axle connecting hole 11. To improve wear resistance, a wear-resistant layer made of polyurethane is provided on the inner wall of the front axle connecting hole 11.
Claims
1. A scooter front support, characterized in that, It includes a first horizontal tube and a second horizontal tube connected between the front axle and the riser. The first horizontal tube and the second horizontal tube are connected at the middle position. The front ends of the first horizontal tube and the second horizontal tube are provided with front axle connecting columns. The front axle connecting columns are rotatably sleeved on the front axle. The first horizontal tube and the second horizontal tube are made of aluminum alloy.
2. The scooter front support as described in claim 1, characterized in that, The front side of the first horizontal tube has a forward bend, which makes the front end of the first horizontal tube extend parallel to the second horizontal tube.
3. The scooter front support as described in claim 1, characterized in that, The first horizontal tube also includes a left branch arm and a right branch arm that extend backward toward both sides.
4. A scooter front support as described in any one of claims 1 to 3, characterized in that, The front axle connecting post is sleeved on the outer periphery of the front axle through a front axle through hole, and a wear-resistant layer is arranged inside the front axle through hole.
5. A scooter front support as described in claim 4, characterized in that, The wear-resistant layer is a polyurethane wear-resistant layer.
6. A scooter front support as described in claim 4, characterized in that, The rear end section of the second horizontal tube is U-shaped.
Citation Information
Patent Citations
Scooter
CN119160319A