Electric vehicle temple support

Abstract

The utility model relates to the technical field of electric vehicles, in particular to an electric vehicle temple support. Comprising a supporting arm, an integrally-formed rotating shaft mechanism is arranged at the top of the supporting arm, and an anti-skid base is arranged at the bottom of the supporting arm; the rotating shaft mechanism is of a U-shaped groove structure, the supporting arm is hinged to the frame through the rotating shaft mechanism, the rotating shaft mechanism further comprises a rotating shaft face, the rotating shaft face is parallel to the hinged portion of the frame, at least two vertical cutting seams are formed in the rotating shaft face and the cutting face adjacent to the rotating shaft face respectively, and a metal strip capable of being folded inwards is formed between the cutting seams. The metal strip is bent by 90 degrees towards the inner side of the U-shaped groove and fixed through welding. Efficient forming of the rotating shaft mechanism is achieved, material and cost limitation of the cold heading technology is broken through, the bearing capacity is greatly improved through the double-layer composite structure of the closed U-shaped groove, the scheme can flexibly meet the requirements of different materials and vehicle types, and a reliable technical path is provided for manufacturing of the electric vehicle temple support with light weight, long service life and low cost.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to an electric vehicle side stand bracket. Background Technology

[0002] Side stand brackets for electric vehicles and motorcycles are metal support devices installed on the sides of the vehicle frame, primarily used to keep the vehicle upright and balanced when parked. They typically consist of a pivot mechanism, support arms, and anti-slip bases, and their folding design via the pivot mechanism allows for quick deployment and retrieval. Current side stand brackets are mostly made of steel or aluminum alloy, requiring sufficient structural strength to support the weight of the entire vehicle while also being lightweight and corrosion-resistant. They are a crucial functional component for the safe use of electric vehicles.

[0003] Currently, the manufacturing of electric vehicle side stand brackets generally relies on individual assembly processes or partial cold heading technology, which still has significant drawbacks: the cold heading process requires customized high-precision molds, which makes small-batch production uneconomical and costly, and it is difficult to adapt to the upgrading needs of hard materials such as high-strength steel and stainless steel; in addition, the right-angle transition at the root of the U-shaped groove in the cold-headed rotating shaft mechanism causes stress concentration, which easily leads to fatigue cracks after long-term use, and the support force attenuation rate is more than 30%, posing a risk of vehicle tipping over.

[0004] Therefore, this application provides a side stand bracket for electric vehicles to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide an electric vehicle side stand bracket and a forming method, which solves the problems of existing electric vehicle side stand brackets relying on high-cost molds for cold heading process, poor economic efficiency for small-batch production, high cost, and insufficient support force of the U-shaped groove of the rotating shaft assembly, which makes it prone to breakage.

[0006] To solve the above technical problems, this utility model provides an electric vehicle side stand bracket, including a support arm, the support arm being a hollow tube structure, an integrally formed rotating shaft mechanism being provided at the top of the support arm, and an anti-slip base being provided at the bottom of the support arm;

[0007] The pivot mechanism is a U-shaped groove structure. The support arm is hinged to the frame through the pivot mechanism. The pivot mechanism also includes a pivot surface, which is parallel to the hinge part of the frame. At least two vertical cutting slits are opened on the adjacent cutting surface of the pivot surface. A metal strip that can be folded inward is formed between the cutting slits. The metal strip is bent 90° inward towards the U-shaped groove and fixed by welding.

[0008] A further improvement of this utility model is that a spring mounting seat is provided radially protruding from the middle of the support arm, and a spring is provided between the spring mounting seat and the frame, the spring being used to drive the support arm to move up and down.

[0009] A further improvement of this utility model is that: the anti-slip base is an external pad nested and welded to the bottom of the support arm; the surface of the anti-slip base is pressed with recessed diamond-shaped anti-slip texture; and a triangular limiting bracket is set on the support arm to transmit the kicking force of the foot.

[0010] A further improvement to the technical solution of this utility model is that the bottom of the support arm body is bent to form a flanged support foot.

[0011] A further improvement of this utility model is that: an anti-slip base is fitted on the flanged support foot, the bottom surface of the anti-slip base body is pressed with recessed diamond-shaped anti-slip texture, and a triangular limiting bracket is set on the anti-slip base.

[0012] A further improvement of this utility model is that the angle between the anti-slip base and the central axis of the support arm is not less than 120°.

[0013] The further improvement of this utility model is as follows: the support arm is formed by stretching a hollow tube and extruding any end to form a rectangular frame structure pivot mechanism, and the unextruded section of the support arm body is flattened into an elliptical tube; the cutting surface adopts directional cutting, and two parallel cuts are made vertically on the cutting surface of the pivot mechanism, with the two parallel cuts respectively abutting against the inner sidewall of the pivot surface, forming two cutting seams and a metal strip in the middle; the metal strip is bent into the U-shaped groove at a bending angle of 90° to enhance the support strength of the pivot mechanism; the metal strip is welded and fixed to the inner sidewall of the pivot surface by continuous weld or dot matrix weld to form a closed U-shaped groove; holes are punched on the pivot surface, and the top edge of the pivot surface is punched into an arc shape; after the spring mounting seat, limit bracket and anti-slip base are welded to the support arm body in sequence, the spring is installed.

[0014] A further improvement of this utility model is that the rotating shaft mechanism and the support arm are integrally formed hollow structures.

[0015] A further improvement of this utility model is that: the height of the rotating shaft mechanism is 33~35mm, the thickness of both the rotating shaft surface and the cutting surface is T, T is 2~2.5mm, the cutting depth of one cutting surface is H1, H1=20~25mm, and the cutting depth of the other cutting surface is H2, H2=H1+T.

[0016] A further improvement of this utility model is that the effective total thickness of the two metal strips at the bottom of the U-shaped groove after welding is ≥4mm, which compensates for the strength loss caused by cutting.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] 1. This utility model provides an electric vehicle side stand bracket. This bracket boasts high structural strength and significantly improved durability. The closed U-shaped groove formed after welding features two layers of metal strips superimposed on the bottom, compensating for an effective total thickness ≥4mm and significantly mitigating strength loss caused by cutting. The stress concentration factor of the shaft mechanism is reduced, static crush load is increased, and dynamic fatigue life is extended to 2-4 times that of traditional cold-forged parts. The two-layer metal strip composite structure effectively inhibits crack propagation, maintaining stable support even under heavy loads or high-frequency use, greatly reducing the risk of fracture.

[0019] 2. This utility model provides a forming method for an electric vehicle side stand bracket. This forming method reduces the reliance on molds in traditional cold heading processes and achieves efficient forming of the pivot mechanism through a composite process of cutting, internal folding, and welding, making it particularly suitable for small-batch customized production. Furthermore, this forming method can quickly adapt to the needs of different vehicle models by adjusting cutting parameters, shortening the modification cycle to several hours, thus overcoming the bottlenecks of high modification costs and long cycles caused by mold limitations in traditional processes.

[0020] 3. The present invention provides a forming method for an electric vehicle side stand bracket. This forming method breaks through the material limitations of the cold heading process. The cold heading process is only applicable to materials with excellent plasticity such as low carbon steel and aluminum alloys, while this forming method supports the efficient processing of high-strength steel, stainless steel and composite materials. It has a wide range of material adaptability and can handle hard materials that are difficult to form by cold heading. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram showing the connection between a side stand bracket and the frame of an electric vehicle.

[0023] Figure 2 This is a schematic diagram showing the connection between a side stand bracket and the frame of an electric vehicle.

[0024] Figure 3 This is a schematic diagram of an electric vehicle side stand bracket in Example 1;

[0025] Figure 4 This is a cross-sectional view of an electric vehicle side stand bracket in Embodiment 1;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the diagram;

[0027] Figure 6 A schematic diagram of a molding method for an electric vehicle side stand bracket;

[0028] Figure 7 This is a schematic diagram of the structure of an electric vehicle side stand bracket without an anti-slip base in Example 2;

[0029] Figure 8 This is a schematic diagram of the structure of an electric vehicle side stand bracket in Example 2.

[0030] Reference numerals: 1. Support arm; 2. Rotating shaft mechanism; 21. U-shaped groove; 22. Rotating shaft surface; 23. Cutting surface; 24. Cutting seam; 25. Metal strip; 3. Anti-slip base; 4. Frame; 5. Spring mounting seat; 6. Spring; 7. Bolt; 8. Limiting bracket; 9. Flanged support foot. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The present invention will be further explained below with reference to specific embodiments.

[0035] Example 1

[0036] like Figures 1-6 As shown, this embodiment provides an electric vehicle side stand bracket, including a support arm 1. An integrally formed pivot mechanism 2 is installed at the top of the support arm 1. The support arm 1 is integrally bent from a hollow steel tube, and its top is rigidly connected to the pivot mechanism 2. The tubular structure of the support arm 1 ensures strength while reducing overall weight. As the main load-bearing component, the support arm 1 transmits the vehicle's weight to the ground through leverage. An anti-slip base 3 is installed at the bottom of the support arm 1, with an angle of not less than 120° between the anti-slip base 3 and the central axis of the support arm 1, increasing the contact area with the ground. The surface of the anti-slip base 3 is pressed with diamond-shaped anti-slip texture and covered with a wear-resistant rubber layer to prevent slipping on wet surfaces. Spring mounting seats 5 and limiting brackets 8 are symmetrically arranged on both sides of the support arm 1. The lower end of the spring 6 is fixed to the spring mounting seat 5, and the upper end is connected to the frame 4 via bolts 7. The spring 6 provides the support arm 1 with automatic rebound force, driving the support arm to move up and down. The limiting brackets 8 constrain the swing angle of the support arm 1 to prevent over-extension.

[0037] like Figures 3-6 As shown, in this embodiment, the rotating shaft mechanism 2 consists of a U-shaped groove 21 structure formed by symmetrically arranged rotating shaft surfaces 22 and cutting surfaces 23. Through holes are formed on the rotating shaft surfaces 22 for mounting rotating shaft pins to achieve hinged connection with the frame 4. Two parallel vertical cutting slits 24 are made on the cutting surfaces 23 using a cutter or laser cutting, forming a metal strip 25 between the two cutting slits 24. This metal strip 25 is bent 90° inwards towards the U-shaped groove 21 and welded to the inner wall of the rotating shaft surfaces 22 to form a closed U-shaped groove 21 structure. This design compensates for the strength loss in the cutting area by the inward fold of the metal strip 25. After welding, the effective total thickness of the bottom of the U-shaped groove 21 is ≥4mm, while the original tube thickness is 3-4.5mm.

[0038] A method for forming a side stand bracket for an electric vehicle includes the following steps:

[0039] S1. Stretch the hollow tube and squeeze the end to form a rectangular frame structure of the pivot mechanism 2, and flatten the support arm 1 into an elliptical tube to optimize mechanical properties.

[0040] Specifically, a metal tube with an outer diameter of Φ25mm and a wall thickness of 3-4.5mm is selected. After cutting to the required length, the metal tube is clamped in a hydraulic stretching machine and an axial tensile force F1=15kN is applied to make the tube elongation ΔL / L0=8-10% and the tube wall thinned to 2-2.5mm. This hydraulic stretching machine is an existing product and will not be described in detail here.

[0041] The stretched metal tube is placed at any end into a combined extrusion die (the upper die is a conical guide head, and the lower die is a rectangular cavity). The hydraulic press is started to apply vertical pressure, forcing the metal at the tube end to flow into the four corner cavities, initially forming a rectangular outline. This extrusion die is an existing product and will not be described in detail here.

[0042] S2. The cutting surface 23 adopts directional cutting. Two parallel cuts are made vertically on the cutting surface 23 of the rotating shaft mechanism 2. The two parallel cuts abut against the inner sidewall of the rotating shaft surface 22 respectively. After cutting, two cutting seams 24 and a metal strip 25 in the middle are formed.

[0043] S3. Bend the middle metal strip 25 into the U-shaped groove 21 at a bending angle of 90° to enhance the support strength of the rotating shaft mechanism 2.

[0044] S4. The metal strip 25 is welded and fixed to the inner wall of the rotating shaft surface 22 by continuous weld or dot matrix weld to form a closed U-shaped groove 21; holes are punched on the rotating shaft surface 22 and the top edge of the rotating shaft surface 22 is punched into an arc shape.

[0045] S5. After welding the spring mounting seat 5, the limit bracket 8 and the anti-slip base 3 to the main body of the support arm 1 in sequence, the spring is then installed to complete the production of the side support bracket.

[0046] The height of the rotating shaft mechanism 2 is 33~35mm. The thickness of both the rotating shaft surface 22 and the cutting surface 23 is T, where T is 2~2.5mm. The cutting depth of one cutting surface 23 is H1, where H1 = 20~25mm, and the cutting depth of the other cutting surface 23 is H2, where H2 = H1 + T. After welding, the effective total thickness of the two metal strips 25 at the bottom of the U-shaped groove 21 is ≥6mm, compensating for the strength loss caused by cutting.

[0047] Example 2

[0048] like Figure 3 , Figure 7 As shown, the difference between this embodiment and embodiment 1 is that: the lower end of the anti-slip base 3 and the support arm 1 is bent to form a flanged foot 9. The flanged foot 9 and the rotating shaft mechanism 2 at the top of the support arm 1 are integrally formed, and the contact surface between the flanged foot 9 and the ground is provided with diamond-shaped anti-slip texture.

[0049] Example 3

[0050] like Figure 3 , Figure 8 As shown, the difference between this embodiment and embodiment 1 is that: the flanged support leg 9 and the pivot mechanism 2 at the top of the support arm 1 are integrally formed, and a plastic anti-slip base 3 is fitted on the flanged support leg 9. The bottom surface of the anti-slip base 3 is pressed with recessed diamond anti-slip texture, and a triangular limiting bracket 8 is set on the anti-slip base 3.

[0051] This invention overcomes the material limitations of cold heading by an innovative combination of cutting, inward folding, and welding processes. Cold heading is only suitable for materials with excellent plasticity, such as low-carbon steel and aluminum alloys, while this forming method supports the efficient processing of high-strength steel, stainless steel, and composite materials, demonstrating broad material adaptability and the ability to handle hard materials that are difficult to form with cold heading. It achieves efficient forming of the rotating shaft mechanism 2, overcoming the cost limitations of cold heading. The double-layer composite structure of the closed U-shaped groove 21 significantly improves load-bearing capacity and effectively inhibits fatigue crack propagation. This solution can flexibly adapt to the needs of different materials and vehicle models, providing a reliable technical path for the lightweight, long-life, and low-cost manufacturing of electric vehicle side stand brackets.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electric vehicle wing mirror support, characterised in that, Includes a support arm (1), which is a hollow tube structure. The top of the support arm (1) is provided with an integrally formed rotating shaft mechanism (2), and the bottom of the support arm (1) is provided with an anti-slip base (3). The pivot mechanism (2) is a U-shaped groove (21) structure. The support arm (1) is hinged to the frame (4) through the pivot mechanism (2). The pivot mechanism (2) also includes a pivot surface (22). The pivot surface (22) is parallel to the hinge part of the frame (4). At least two vertical cutting slits (24) are opened on the adjacent cutting surface (23) of the pivot surface (22). A metal strip (25) that can be folded inward is formed between the cutting slits (24). The metal strip (25) is bent 90° towards the inside of the U-shaped groove (21) and fixed by welding.

2. The temple of claim 1, wherein, A spring mounting seat (5) is radially protruding from the middle of the support arm (1), and a spring (6) is provided between the spring mounting seat (5) and the frame (4). The spring (6) is used to drive the support arm (1) to move up and down.

3. The temple of claim 2, wherein the hinge is a living hinge. The anti-slip base (3) is an external pad that is nested and welded to the bottom of the support arm (1). The surface of the anti-slip base (3) is pressed with a recessed diamond anti-slip pattern. A triangular limiting bracket (8) is set on the support arm (1). The limiting bracket (8) is used to transmit the kicking force of the foot.

4. The temple of claim 2, wherein the hinge is a living hinge. The bottom of the support arm (1) is bent to form a flanged support foot (9).

5. The temple of claim 4, wherein the hinge is a living hinge. An anti-slip base (3) is fitted on the flanged support (9). The bottom surface of the anti-slip base (3) is pressed with a recessed diamond anti-slip pattern. A triangular limiting bracket (8) is set on the anti-slip base (3).

6. The electric vehicle side stand bracket according to claim 1, characterized in that, The angle between the center axis of the anti-slip base (3) and the support arm (1) is not less than 120°.

7. The temple of claim 3, wherein the hinge is a living hinge. The support arm (1) is formed by stretching a hollow tube and extruding any end to form a rectangular frame structure rotating shaft mechanism (2), and flattening the unextruded section of the support arm (1) into an elliptical tube; the cutting surface (23) is directionally cut, and two parallel cuts are made vertically on the cutting surface (23) of the rotating shaft mechanism (2). The two parallel cuts abut against the inner wall of the rotating shaft surface (22), and after cutting, two cutting seams (24) and a metal strip (25) in the middle are formed; the metal strip (25) The metal strip (25) is bent into the U-shaped groove (21) at a bending angle of 90° to enhance the support strength of the rotating shaft mechanism (2); the metal strip (25) is welded to the inner wall of the rotating shaft surface (22) by continuous weld or dot matrix weld to form a closed U-shaped groove (21); holes are punched on the rotating shaft surface (22), and the top edge of the rotating shaft surface (22) is punched into an arc shape; after the spring mounting seat (5), the limit bracket (8) and the anti-slip base (3) are welded to the body of the support arm (1) in sequence, the spring is then installed.

8. The temple of claim 7, wherein the hinge is a living hinge. The rotating shaft mechanism (2) and the support arm (1) are integrally formed hollow structures.

9. The temple of claim 7, wherein, The height of the rotating shaft mechanism (2) is 33~35mm. The thickness of the rotating shaft surface (22) and the cutting surface (23) is T, where T is 2~2.5mm. The cutting depth of one cutting surface (23) is H1, where H1 = 20~25mm. The cutting depth of the other cutting surface (23) is H2, where H2 = H1 + T.

10. The temple of claim 7, wherein, The effective total thickness of the two metal strips (25) at the bottom of the U-shaped groove (21) after welding is ≥4mm, which compensates for the strength loss caused by cutting.

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