A lightweight mudguard bracket assembly and its mudguard support rod manufacturing method

Abstract

This invention discloses a lightweight mudguard bracket assembly and its mudguard support rod manufacturing method. The assembly includes a mudguard support rod, with a detachably connected mudguard support structure at one end and a detachably connected base structure at the other end. The mudguard support rod has horizontally arranged tubular structures at both ends, and is curved near the base structure. Two mudguard support structures are installed on the outer side of the horizontal ends of the mudguard support rod. This invention achieves modular design and detachable connection of the core components of the mudguard bracket assembly. The mudguard support structure and base structure are installed at both ends of the mudguard support rod via hexagonal bolts and nuts, and external threads and internal threaded holes, respectively. This structure facilitates individual manufacturing, testing, and assembly during production, reducing overall production difficulty and cost.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle parts, specifically to a lightweight mudguard bracket assembly and a method for manufacturing the mudguard support rod. Background Technology

[0002] The lightweight mudguard bracket assembly is mainly used to provide stable and reliable installation support for vehicle mudguards. At the same time, by using lightweight materials (such as high-strength plastics, aluminum alloys or composite materials) and optimizing structural design, it effectively reduces its own weight while ensuring sufficient structural strength and load-bearing capacity.

[0003] In the traditional design of mudguard bracket assemblies, an integrated or fixed connection structure is often adopted. This design requires that each component be manufactured as a whole during the production process, which not only increases the complexity of the mold and the difficulty of the manufacturing process, but also makes it difficult to conduct independent quality inspection of individual components. If a quality problem occurs in a certain component in the subsequent production area or the area of ​​use, it may lead to the scrapping of the entire assembly, thereby increasing the production cost, scrap rate and usage cost. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight mudguard bracket assembly and its mudguard support rod preparation method that can be used simply by peeling off the bottom ring-shaped adhesive paper, without the need for the traditional double-sided adhesive method, thus making operation more convenient and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lightweight mudguard bracket assembly with a two-end assembly structure that allows for separate installation of each component during transportation, reducing production difficulty. The assembly includes a mudguard support rod, and a detachably connected mudguard support structure at one end and a detachably connected base structure at the other end. The mudguard support rod has horizontally arranged tubular structures at both ends, with the support rod curved near the base structure. Two mudguard support structures are installed on the outer side of the horizontal end of the mudguard support rod. The length of the horizontal section of the mudguard support rod at one end of the mudguard support structure is greater than the length of the horizontal section at the other end. Several reserved cavities are provided on the outer wall of the horizontal section of the mudguard support rod near the mudguard support structure, and external threads are provided on the outer wall of the other end.

[0006] Preferably, the mudguard support structure includes a mounting plate, which is arched in the middle and smooth on both sides. Two symmetrically distributed weight-reducing cavities are provided on both sides of the mounting plate. A reserved hole is provided in the middle of both sides of the mounting plate. An arc-shaped groove is provided on the front end face of the arched area in the middle of the mounting plate, and a countersunk hole is provided at the center of the rear end face. The countersunk hole communicates with the arc-shaped groove, and the outer end of the mudguard support rod is inserted into the arc-shaped groove area.

[0007] Preferably, the mudguard support structure further includes hexagon socket bolts, which are installed in the countersunk hole. The hexagon socket bolts pass through the reserved cavity and the countersunk hole in sequence, and the through end is threaded with a nut.

[0008] Preferably, the rear side of the mounting plate is provided with anti-slip texture.

[0009] Preferably, the reserved cavity on the mudguard support rod is a through-hole arrangement, and a number of reserved cavities are evenly distributed in the horizontal direction. The inner diameter of each reserved cavity is smaller than the outer diameter of the head of the nut and the internal hexagon bolt.

[0010] Preferably, the base structure includes an annular base, a conical sleeve is fixedly connected to the center of one side of the annular base, and a limiting circular plate is provided on the other side. The conical sleeve is slidably sleeved on one end of the mudguard support rod. One end of the mudguard support rod passes through the conical sleeve and the annular base in sequence, and the external thread is provided on the outer wall of the through end. A matching internal thread hole is opened at the center of the limiting circular plate. Several annular arc-shaped cavities are opened on both the annular base and the limiting circular plate.

[0011] Preferably, the annular base and the conical sleeve are integrally formed, a rubber pad is provided on the outer side of the limiting circular plate, and the same number of arc-shaped cavities are also provided on the rubber pad. Several annularly distributed anti-slip grooves are provided on the outer wall of the limiting circular plate.

[0012] A method for manufacturing a mudguard support rod, used to manufacture the mudguard support rod as described in the claim, includes the following steps:

[0013] S1. Select aluminum alloy tubing as raw material to meet lightweight design requirements. Cut the tubing according to the design length to obtain straight pipe sections of initial length.

[0014] S2. Bend the cut straight pipe sections. Bend the pipe near any end area using a special pipe bending device to form a preset bending angle and arc. Visually inspect the bending part for a smooth transition without wrinkles or cracks. The bent area can be adapted to the installation position of the base structure and the layout space of the vehicle's mudguard installation area.

[0015] S3. At the end of the mudguard support rod away from the bending area, several reserved cavities are opened on its horizontal outer wall through drilling and milling processes. The number, size and position of the reserved cavities need to be precisely set according to the installation requirements of the mudguard support structure to ensure that they can be matched with the corresponding connecting parts on the mudguard support structure, thereby realizing a detachable connection.

[0016] S4. Threading is performed on the outer wall of the mudguard support rod at the end near the bending area. External threads are formed by tapping. The specifications of the external threads must match the internal threads on the base structure to ensure a stable and detachable connection between the two. After processing, the surface of the mudguard support rod is treated by deburring, grinding, and spraying an anti-rust coating to improve its service life and appearance quality.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The modular design and detachable connection of the core components of the mudguard bracket assembly have been realized. The mudguard support structure and the base structure are installed at both ends of the mudguard support rod by means of internal hex bolts and nuts and external threads and internal threaded holes, respectively. This structure facilitates individual manufacturing, testing and assembly in the production process, and reduces the overall production difficulty and cost.

[0019] 2. During subsequent vehicle assembly, maintenance, or parts replacement, specific damaged or adjustable parts (such as mudguard support structure or base structure) can be disassembled and operated separately without replacing the entire bracket assembly, greatly improving maintenance convenience, reducing repair time and costs, and providing flexible solutions for structural adjustments and adaptations for different vehicle models or usage needs.

[0020] 3. The two-end assembly structure allows for the disassembly and packaging of individual components during transportation, saving transportation space, reducing transportation costs, and minimizing the risk of collision damage to components due to the large overall structural dimensions during transportation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the entire invention from another angle;

[0023] Figure 3 This is a schematic diagram of the overall exploded three-dimensional structure of the present invention;

[0024] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure from another angle.

[0025] In the diagram: 1. Mudguard support rod; 2. Mudguard support structure; 21. Mounting plate; 22. Weight reduction cavity; 23. Reserved hole; 24. Nut; 25. Reserved cavity; 26. Countersunk hole; 27. Anti-slip texture; 28. Socket head bolt; 29. ​​Arc groove; 3. Base structure; 31. Annular base; 32. Limiting circular plate; 33. Rubber pad; 34. Conical sleeve; 35. Arc cavity; 36. Threaded hole; 37. External thread; 38. Anti-slip inner groove. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 4 The figure shows a lightweight mudguard bracket assembly, including a mudguard support rod 1, a mudguard support structure 2 detachably connected to one end of the mudguard support rod 1, and a base structure 3 detachably connected to the other end of the mudguard support rod 1. The mudguard support rod 1 has a tubular structure with both ends arranged horizontally. The area of ​​the mudguard support rod 1 near the base structure 3 is curved. There are two mudguard support structures 2, which are installed on the outer side of the horizontal end of the mudguard support rod 1. The length of the horizontal section of the mudguard support rod 1 at one end of the mudguard support structure 2 is greater than the length of the horizontal section at the other end. Several reserved cavities 25 are opened on the outer wall of the horizontal section of the mudguard support rod 1 near the mudguard support structure 2, and the outer wall of the other end is provided with external threads 37.

[0028] The mudguard support structure 2 includes a mounting plate 21, which is arched in the middle and smooth on both sides. Two symmetrically distributed weight-reducing cavities 22 are provided on both sides of the mounting plate 21. A reserved hole 23 is provided in the middle of both sides of the mounting plate 21. An arc-shaped groove 29 is provided on the front end face of the arched area in the middle of the mounting plate 21, and a countersunk hole 26 is provided at the center of its rear end face. The countersunk hole 26 is connected to the arc-shaped groove 29. The outer end of the mudguard support rod 1 is inserted into the area of ​​the arc-shaped groove 29.

[0029] The mudguard support structure 2 also includes an internal hexagon bolt 28, which is installed in the countersunk hole 26. The internal hexagon bolt 28 passes through the countersunk hole 26 and the reserved cavity 25 in sequence, and the threaded end of the bolt is connected to a nut 24.

[0030] It is worth noting that the assembly principle of the mudguard support structure 2 and the mudguard support rod 1 is as follows: An arc-shaped groove 29 is provided on the front end face of the arched area in the middle of the mounting plate 21 of the mudguard support structure 2. The outer wall of the horizontal end of the mudguard support rod 1 is inserted into the arc-shaped groove 29. The arc-shaped groove 29 fits against the curved surface of the tubular structure of the mudguard support rod 1, achieving radial positioning and ensuring the relative position stability of the support structure 2 and the mudguard support rod 1. An internal hex bolt 28 is inserted through the countersunk hole 26, passing through the countersunk hole 26 and the pre-reserved cavity 25 on the outer wall of the horizontal section of the mudguard support rod 1. The through-hole is connected to a threaded nut 24, thus securing the support structure 2 and the mudguard support rod 1. The countersunk hole 26 is designed to embed the bolt head inside the mounting plate 21, avoiding external protrusion that could interfere with subsequent mudguard installation. The pre-reserved hole 23 provides an alignment reference for the subsequent installation of the mudguard body.

[0031] The rear side of the mounting plate 21 is provided with anti-slip texture 27. The anti-slip texture 27 can increase the friction between the mounting plate and the mudguard body installed later. During vehicle operation, it can effectively prevent relative sliding between the mudguard body and the supporting structure, further improve the stability of the overall structure after installation, and extend the service life of the structure.

[0032] By using the four pre-drilled holes 23 on the two mudguard support structures 2 to correspond to the mudguard installation positions, the mudguard body is locked and fixed to the mounting plate 21 by bolts passing through the pre-drilled holes 23 in sequence. The anti-slip texture 27 increases the friction of the contact surface and prevents the mudguard body from shifting after being impacted by road bumps. The arc groove 29 fits and is positioned with the curved surface of the mudguard support rod 1. It is locked with the hexagonal bolts 28 to prevent the mudguard support structure 2 from deflecting on the mudguard support rod 1. The entire bracket assembly maintains structural stability during vehicle operation. At the same time, the support structure adopts a hollow weight reduction design to reduce the overall weight while ensuring support strength, thus meeting the vehicle's lightweight design requirements.

[0033] The reserved cavity 25 on the mudguard support rod 1 is a through-hole setting. A number of reserved cavities 25 are evenly distributed in the horizontal direction. The inner diameter of the reserved cavity 25 is smaller than the outer diameter of the head of the nut 24 and the hexagon socket bolt 28. While reducing the counterweight, the reserved cavity 25 will not hinder the installation and fixing of the bolt and nut, which can ensure the reliability of the locking connection. At the same time, the evenly distributed reserved cavity will not damage the overall structural strength of the mudguard support rod. While achieving weight reduction, sufficient support rigidity is maintained to adapt to the continuous impact loads borne by the vehicle during driving.

[0034] See Figure 1 and Figure 4The base structure 3 includes an annular base 31. A conical sleeve 34 is fixedly connected to the center of one side of the annular base 31, and a limiting circular plate 32 is provided on the other side. The conical sleeve 34 is slidably sleeved on one end of the mudguard support rod 1. One end of the mudguard support rod 1 passes through the conical sleeve 34 and the annular base 31 in sequence, and an external thread 37 is provided on the outer wall of the through end. A matching internal thread hole 36 is opened at the center of the limiting circular plate 32. Several annularly arranged arc-shaped cavities 35 are opened on both the annular base 31 and the limiting circular plate 32.

[0035] The annular base 31 and the conical sleeve 34 are integrally formed. A rubber pad 33 is provided on the outer side of the limiting circular plate 32. The rubber pad 33 also has the same number of arc-shaped cavities 35. Several annularly distributed anti-slip grooves 38 are provided on the outer wall of the limiting circular plate 32.

[0036] The installation principle of the base structure 3 and the mudguard support rod 1 is as follows: Align one end of the mudguard support rod 1 with the conical sleeve 34 at the center of one side of the annular base 31 in the base structure 3, and insert the end along the axial direction of the conical sleeve 34, so that the conical sleeve 34 slides onto the mudguard support rod 1. Then, continue to push the mudguard support rod 1 so that one end passes through the conical sleeve 34 and the annular base 31 in sequence, until the external thread 37 on the outer side wall of the through end of the mudguard support rod 1 is completely exposed on the other side of the annular base 31.

[0037] Then, take the limiting circular plate 32 and align the internal threaded hole 36 at its center with the external thread 37 at the through end of the mudguard support rod 1. By rotating the limiting circular plate 32, the friction of the hand can be increased by the several annularly distributed anti-slip grooves 38 on its outer wall, which facilitates the rotation operation, so that the internal threaded hole 36 and the external thread 37 are threadedly connected. As the limiting circular plate 32 is tightened, it gradually moves closer to the side of the annular base 31.

[0038] Since the annular base 31 and the conical sleeve 34 are integrally formed, the conical sleeve 34 remains stable under the support of the mudguard support rod 1 and the fixing effect of the annular base 31 during the tightening of the limiting circular plate 32. When the limiting circular plate 32 is screwed to fit against the side of the annular base 31, the rubber pad 33 can buffer and increase friction, improving the stability of the connection. At this time, the several annularly arranged arc-shaped cavities 35 on the annular base 31, the limiting circular plate 32, and the rubber pad 33 correspond to each other. These arc-shaped cavities 35 can reduce the weight of the components without affecting the overall structural strength, and the entire limiting circular plate 32 and the annular base 31 can be fixedly installed on the frame through the arc-shaped cavity 35 area.

[0039] A method for manufacturing a mudguard support rod, used to manufacture the mudguard support rod 1 as described in claim 1, characterized by comprising the following steps:

[0040] S1. Select aluminum alloy tubing as raw material to meet lightweight design requirements. Cut the tubing according to the design length to obtain straight pipe sections of initial length.

[0041] S2. Bend the cut straight pipe section. Bend the pipe near any end area using a special pipe bending device to form a preset bending angle and arc. Visually inspect the bending part for a smooth transition without wrinkles or cracks. The bent area can be adapted to the installation position of the base structure 3 and the layout space of the vehicle mudguard installation area.

[0042] S3. At the end of the mudguard support rod 1 away from the bending area, several reserved cavities 25 are opened on its horizontal outer side wall by drilling and milling. The number, size and position of the reserved cavities 25 need to be precisely set according to the installation requirements of the mudguard support structure 2 to ensure that they can be adapted to the corresponding connecting parts on the mudguard support structure 2, so as to achieve detachable connection.

[0043] S4. Threading is performed on the outer wall of the section of the mudguard support rod 1 near the bending area. External thread 37 is formed by tapping. The specification of external thread 37 must match the internal thread on the base structure 3 to ensure that the two can achieve a stable and detachable connection. After processing, the surface of the mudguard support rod 1 is treated by deburring, grinding and spraying an anti-rust coating to improve its service life and appearance quality.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight mudguard bracket assembly, comprising a mudguard support rod (1), and a mudguard support structure (2) detachably connected to one end of the mudguard support rod (1) and a base structure (3) detachably connected to the other end, characterized in that, The mudguard support rod (1) has a tubular structure with both ends set horizontally. The mudguard support rod (1) is curved near the base structure (3). There are two mudguard support structures (2), which are installed on the outside of the horizontal end of the mudguard support rod (1). The length of the horizontal section of the mudguard support rod (1) at one end of the mudguard support structure (2) is greater than the length of the horizontal section at the other end. Several reserved cavities (25) are opened on the outer wall of the horizontal section of the mudguard support rod (1) near the mudguard support structure (2), and the outer wall at the other end is provided with external threads (37).

2. The lightweight mudguard bracket assembly according to claim 1, characterized in that: The mudguard support structure (2) includes an installation plate (21). The installation plate (21) is arched in the middle and smooth on both sides. Two symmetrically distributed weight-reducing cavities (22) are provided on both sides of the installation plate (21). A reserved hole (23) is provided in the middle of both sides of the installation plate (21). An arc groove (29) is provided on the front end face of the arched area in the middle of the installation plate (21). A countersunk hole (26) is provided at the center of the rear end face. The countersunk hole (26) is connected to the arc groove (29). The outer end of the mudguard support rod (1) is inserted into the area of ​​the arc groove (29).

3. The lightweight mudguard bracket assembly according to claim 2, characterized in that: The mudguard support structure (2) also includes an internal hexagon bolt (28), which is installed in the countersunk hole (26). The internal hexagon bolt (28) passes through the countersunk hole (26) and the reserved cavity (25) in sequence, and the threaded end of the bolt is connected to a nut (24).

4. A lightweight mudguard bracket assembly according to claim 2, characterized in that: The rear side of the mounting plate (21) is provided with anti-slip texture (27).

5. A lightweight mudguard bracket assembly according to claim 3, characterized in that: The reserved cavity (25) on the mudguard support rod (1) is a through-hole. A number of reserved cavities (25) are evenly distributed in the horizontal direction. The inner diameter of the reserved cavity (25) is smaller than the outer diameter of the head of the nut (24) and the internal hex bolt (28).

6. A lightweight mudguard bracket assembly according to claim 1, characterized in that: The base structure (3) includes an annular base (31). A conical sleeve (34) is fixedly connected to the center of one side of the annular base (31), and a limiting circular plate (32) is provided on the other side. The conical sleeve (34) is slidably sleeved on one end of the mudguard support rod (1). One end of the mudguard support rod (1) passes through the conical sleeve (34) and the annular base (31) in sequence, and the external thread (37) is provided on the outer wall of the through end. A matching internal thread hole (36) is opened at the center of the limiting circular plate (32). Several annular arc-shaped cavities (35) are opened on both the annular base (31) and the limiting circular plate (32).

7. A lightweight mudguard bracket assembly according to claim 1, characterized in that: The annular base (31) and the conical sleeve (34) are integrally formed. A rubber pad (33) is provided on the outer side of the limiting circular plate (32). The same number of arc-shaped cavities (35) are also provided on the rubber pad (33). Several annularly distributed anti-slip grooves (38) are provided on the outer wall of the limiting circular plate (32).

8. A method for manufacturing a mudguard support rod, used to manufacture the mudguard support rod (1) as described in claim 1, characterized in that: Includes the following steps: S1. Select aluminum alloy tubing as raw material to meet lightweight design requirements. Cut the tubing according to the design length to obtain straight pipe sections of initial length. S2. Bend the cut straight pipe section, bend the pipe near any end area using a special pipe bending device to form a preset bending angle and arc. Visually inspect the bending part for a smooth transition without wrinkles or cracks. The bent area can be adapted to the installation position of the base structure (3) and the layout space of the vehicle mudguard installation area. S3. At the end of the mudguard support rod (1) away from the bending area, several reserved cavities (25) are opened on its horizontal outer side wall by drilling and milling. The number, size and position of the reserved cavities (25) need to be precisely set according to the installation requirements of the mudguard support structure (2) to ensure that they can be adapted to the corresponding connecting parts on the mudguard support structure (2) so as to achieve detachable connection. S4. Threading is performed on the outer wall of the section of the mudguard support rod (1) near the bending area. External threads (37) are formed by tapping. The specifications of the external threads (37) must match the internal threads on the base structure (3) to ensure that the two can achieve a stable and detachable connection. After processing, the surface of the mudguard support rod (1) is treated by deburring, grinding and spraying an anti-rust coating to improve its service life and appearance quality.

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