U-shaped bracket arm for vehicle

Abstract

The utility model discloses a kind of U-shaped support arm for vehicle, including support arm, two support arms are arranged mutually in parallel;Support connecting plate, the same end of two support arms is connected;Support fixed block, each support arm is fixed with a block of support fixed block, two support fixed blocks are along extension, support fixed block, support connecting plate are respectively fixed in the both ends of support arm;Among them, support connecting plate, support fixed block are all provided with through-hole, the axis of through-hole of support connecting plate, support fixed block is mutually parallel, the plane where support connecting plate, support fixed block each is mutually parallel;Support arm and support connecting plate, support fixed block are concave-convex assembly, the junction line of support arm and support connecting plate, support fixed block is arranged with weld. Adopt this utility model to realize accurate positioning by concave-convex assembly and avoid weld offset, simultaneously, weld connection is strengthened overall strength in combination, and through-hole parallel arrangement makes stress uniform, improves the structural stability of support.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts, specifically to a U-shaped support arm for vehicles. Background Technology

[0002] Currently, in the field of vehicle metal parts, small-sized modular brackets are widely used for the support and fixation of various components, and their structural reliability directly affects the overall assembly stability of the vehicle.

[0003] Existing small-sized modular supports mostly employ single welding or simple tongue-and-groove snap-fit ​​connections. While single welding ensures connection strength, inaccurate positioning during assembly can easily lead to weld misalignment, and stress concentration during welding can cause support deformation. Simple tongue-and-groove snap-fit ​​connections, while convenient for quick positioning, suffer from loosening due to vibration during long-term use, resulting in insufficient connection reliability. Therefore, there is a need to design a small-sized modular welded support with a simple structure, precise positioning, and reliable connection. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a U-shaped support arm for vehicles.

[0005] To solve the above problems, this utility model provides a vehicle U-shaped support arm. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows: A vehicle-mounted U-shaped support arm includes: two support arms arranged parallel to each other; a support connecting plate connecting the same end of the two support arms; and support fixing blocks, each support arm having a fixed block, the two support fixing blocks extending in opposite directions, the support fixing blocks and the support connecting plate being fixed to both ends of the support arm respectively; wherein, the support connecting plate and the support fixing blocks each have through holes, the axes of the through holes of the support connecting plate and the support fixing blocks are parallel to each other, and the planes on which the support connecting plate and the support fixing blocks are located are parallel to each other; the support arms are fitted with the support connecting plate and the support fixing blocks in a concave-convex manner, and a weld is arranged at the junction line of the support arms and the support connecting plate and the support fixing blocks.

[0006] As a further improvement of this utility model, the two ends of the support arm are respectively provided with a first internal corner notch and a rectangular notch, the two ends of the support connecting plate are provided with a first rectangular protrusion, and the edge of the support fixing block is provided with a second rectangular protrusion; the first rectangular protrusion is in concave-convex assembly with the first internal corner notch, and the second rectangular protrusion is in concave-convex assembly with the rectangular notch.

[0007] As a further improvement of this utility model, the protrusion height of the first rectangular protrusion and the second rectangular protrusion is equal to the thickness of the support arm.

[0008] As a further improvement of this utility model, one side of the first internal corner notch is a boss, and the boss has an inner rounded corner at its root on the side away from the first internal corner notch.

[0009] As a further improvement of this utility model, the support arm is L-shaped along its own length direction, and the width of the end of the support arm that is fixed to the support fixing block is greater than the width of the end of the support arm that is fixed to the support connecting plate.

[0010] As a further improvement of this utility model, the through hole includes a first through hole located in the bracket connecting plate and a second through hole located in the bracket fixing block, and the widest area of ​​the bracket connecting plate itself is in the same lateral position as the first through hole.

[0011] As a further improvement of this utility model, the weld seam includes several seams, and different weld seams overlap each other in the same spatial straight line or are arranged parallel to each other.

[0012] As a further improvement of this utility model, the edge of the support arm is coated with anti-baking paint.

[0013] The beneficial technical effects of using the vehicle U-shaped support arm of this application are: The support arm, support connecting plate, and support fixing block adopt a concave-convex assembly, which can quickly achieve precise positioning of each component during the assembly stage. This effectively avoids the weld seam offset problem caused by inaccurate positioning in a single welding method, laying the foundation for reliable connection in the future.

[0014] The concave-convex assembly structure increases the contact area between the support arm and the connecting plate and fixing block. Combined with the welded connection at the junction line, it not only makes up for the defect of easy loosening after long-term use of simple concave-convex snap-fit, but also enhances the overall connection strength and reduces the risk of support deformation caused by welding stress concentration.

[0015] The through-hole axes of the bracket connecting plate and the bracket fixing block are parallel to each other and their planes are parallel to each other, ensuring that the force is evenly transmitted when the bracket arm is assembled with other vehicle parts, further improving the structural stability of the entire bracket and meeting the requirements of vehicle parts for support and fixation reliability.

[0016] The U-shaped bracket arm for vehicles described in this application can serve as an internal metal bracket for handle-type components, such as emergency escape handles for vehicle safety doors and trunk doors. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a perspective view of one embodiment of the present utility model; Figure 2 This is a top view of one embodiment of the present invention; Figure 3 This is a perspective view of a support arm according to one embodiment of the present invention; Figure 4 This is a perspective view of the bracket connecting plate according to one embodiment of the present utility model; Figure 5 This is a perspective view of a bracket fixing block according to one embodiment of the present invention.

[0019] 1-Support arm; 101-First internal corner notch; 102-Rectangular notch; 103-Boss; 1031-Inner rounded corner; 2-Support connecting plate; 201-First through hole; 202-Second internal corner notch; 203-First rectangular protrusion; 3-Support fixing block; 301-Second through hole; 302-Second rectangular protrusion; 4-Anti-baking paint; 5-Weld. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments: To achieve the purpose of this utility model, a vehicle U-shaped support arm includes: a support arm 1, with two support arms 1 arranged parallel to each other; a support connecting plate 2, connecting the same end of the two support arms 1; and a support fixing block 3, with one support fixing block 3 fixed to each support arm 1, the two support fixing blocks 3 extending in opposite directions, and the support fixing blocks 3 and the support connecting plate 2 respectively fixed to both ends of the support arm 1. Both the support connecting plate 2 and the support fixing block 3 have through holes, the axes of the through holes of the support connecting plate 2 and the support fixing block 3 are parallel to each other, and the planes on which the support connecting plate 2 and the support fixing block 3 are located are parallel to each other. The support arm 1 is fitted with the support connecting plate 2 and the support fixing block 3 in a concave-convex manner, and a weld is arranged at the junction line of the support arm 1 and the support connecting plate 2 and the support fixing block 3.

[0021] The beneficial effects of adopting the above technical solution are: creating a concave-convex mating surface and boundary line, which firstly improves the structural strength of different components. Because the concave-convex mating surface increases the mating length, it is convenient to lay welds 5 on these boundary lines, and the welds fix the support arm 1 and the support connecting plate 2 as one unit. This ensures the dimensional and shape stability of the entire U-shaped support arm.

[0022] In some other embodiments of this utility model, the two ends of the support arm 1 are respectively provided with a first internal corner notch 101 and a rectangular notch 102, the two ends of the support connecting plate 2 are provided with a first rectangular protrusion 203, and the edge of the support fixing block 3 is provided with a second rectangular protrusion 302. The first rectangular protrusion 203 is fitted with the first internal corner notch 101 in a concave-convex manner, and the second rectangular protrusion 302 is fitted with the rectangular notch 102 in a concave-convex manner.

[0023] A notch at the inside corner refers to a recessed notch formed by two perpendicular sides, while a rectangular notch 102 refers to a recessed notch formed by three consecutive perpendicular sides. The coverage of a notch at the inside corner is not as good as that of a rectangular notch 102.

[0024] The beneficial effects of adopting the above technical solution are: it provides more accurate snap-fit ​​positioning, increases the wrapping and contact area of ​​the connection interface, thereby improving vibration resistance and long-term reliability, and preventing the snap-fit ​​from loosening.

[0025] In some other embodiments of this utility model, the protrusion height of the first rectangular protrusion 203 and the second rectangular protrusion 302 is equal to the thickness of the support arm 1.

[0026] The beneficial effects of adopting the above technical solution are: the surfaces of the protrusion and the notch are flush when assembled, eliminating assembly gaps, ensuring a tight and seamless connection, and enhancing the integrity and mechanical properties of the overall structure.

[0027] In some other embodiments of the present invention, one side of the first internal corner notch 101 is a boss 103, and the boss 103 has an inner rounded corner 1031 at its root on the side away from the first internal corner notch 101.

[0028] like Figure 4 As shown, a second internal corner notch 202 is formed on one side of the first rectangular protrusion 203, and the second internal corner notch 202 contacts one side of the protrusion 103.

[0029] The beneficial effects of adopting the above technical solution are: the inner fillet 1031 effectively reduces stress concentration, prevents cracks from forming under stress, and improves the fatigue strength and durability of the support arm 1. At the same time, the boss 103 contacts the second internal corner notch 202, further stabilizing the assembly relationship.

[0030] like Figure 3As shown, in some other embodiments of this utility model, the support arm 1 is L-shaped along its own length direction, and the width of the end of the support arm 1 that is fixed to the support fixing block 3 is greater than the width of the end of the support arm 1 that is fixed to the support connecting plate 2.

[0031] The beneficial effects of adopting the above technical solution are: it makes the load-bearing capacity of the wide end stronger, reduces the weight of the narrow end, and achieves lightweight and space adaptability of the overall structure while ensuring strength.

[0032] In other embodiments of this utility model, the through hole includes a first through hole 201 located in the bracket connecting plate 2, and also includes a second through hole 301 located in the bracket fixing block 3, such as... Figure 4 As shown, the widest area of ​​the bracket connecting plate 2 is at the same lateral position as the first through hole 201.

[0033] The beneficial effects of adopting the above technical solution are: it ensures that the material distribution around the through hole is uniform, increases the tensile strength and stability of the first through hole 201 area, and prevents local deformation or damage during bolt connection or under stress.

[0034] In some other embodiments of this utility model, the weld seam 5 includes several seams, and different weld seams 5 are arranged in the same straight line in space or parallel to each other. Figure 2 Fish scale pattern is used to represent weld seam 5.

[0035] The beneficial effects of adopting the above technical solution are: weld 5 includes several welds that overlap or are arranged in parallel, forming multiple welding defense lines, dispersing welding stress, improving the sealing and crack resistance of the joint, and ensuring the long-term uniformity of the load-bearing capacity of the weld 5 area.

[0036] In some other embodiments of this utility model, the edge of the support arm 1 is coated with anti-baking paint 4.

[0037] Figure 1 The surface anti-baking paint 4 is represented by grid lines. The anti-baking paint 4 and the weld 5 are on the same side of the support arm 1.

[0038] The beneficial effects of adopting the above technical solution are: effectively protecting the edge from oxidation or damage at high welding temperatures, maintaining corrosion resistance and appearance integrity, and extending the service life of the support arm 1 in harsh environments.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A U-shaped support arm for vehicles, characterized in that, include: Support arms, two support arms are arranged parallel to each other; The bracket connecting plate connects the same end of the two bracket arms; Each support arm is fixed with a support fixing block, and the two support fixing blocks extend in opposite directions. The support fixing blocks and the support connecting plate are respectively fixed to both ends of the support arm. The bracket connecting plate and the bracket fixing block both have through holes, the axes of the through holes of the bracket connecting plate and the bracket fixing block are parallel to each other, and the planes on which the bracket connecting plate and the bracket fixing block are located are parallel to each other. The support arm is assembled with the support connecting plate and the support fixing block in a concave-convex manner, and a weld is arranged at the junction line of the support arm with the support connecting plate and the support fixing block.

2. The vehicle U-shaped support arm according to claim 1, characterized in that: The two ends of the support arm are respectively provided with a first internal corner notch and a rectangular notch, the two ends of the support connecting plate are provided with a first rectangular protrusion, and the edge of the support fixing block is provided with a second rectangular protrusion. The first rectangular protrusion is assembled with the first internal corner notch, and the second rectangular protrusion is assembled with the rectangular notch.

3. The vehicle U-shaped support arm according to claim 2, characterized in that: The protrusion height of the first rectangular protrusion and the second rectangular protrusion is equal to the thickness of the support arm.

4. The vehicle U-shaped support arm according to claim 2, characterized in that: One side of the first internal corner notch is a boss, and the boss has an inner rounded corner at its root on the side away from the first internal corner notch.

5. The vehicle U-shaped support arm according to claim 1, characterized in that: The support arm is L-shaped along its length, and the width of the end of the support arm that is fixed to the support fixing block is greater than the width of the end of the support arm that is fixed to the support connecting plate.

6. The vehicle U-shaped support arm according to claim 1, characterized in that: The through hole includes a first through hole located in the bracket connecting plate and a second through hole located in the bracket fixing block. The widest area of ​​the bracket connecting plate itself is at the same lateral position as the first through hole.

7. The vehicle U-shaped support arm according to claim 1, characterized in that: The weld seam includes several seams, and different seams overlap each other in the same straight line in space or are arranged parallel to each other.

8. The vehicle U-shaped support arm according to claim 1, characterized in that: The edges of the support arm are coated with a heat-resistant paint.

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