High vibration adjustable headlamp bracket

Abstract

A high-vibration adjustable headlamp support includes a metal triangular plate, a first damping assembly, and three second damping assemblies. The metal triangular plate has a middle base and three raised support portions distributed at 120°. The first damping assembly connects the support with a vehicle body mounting panel through a first bolt, and includes a first adjusting base with an arc-shaped groove and a first rubber pad, which form a spherical surface fit with an arc-shaped protrusion at the bottom of the base to achieve installation angle adjustment. The three second damping assemblies respectively connect each support portion with a headlamp radiator through a second bolt, a second rubber pad, and a third rubber pad. The present application effectively attenuates multi-directional vibration transmission through a three-stage damping design and an angle adjustment structure, prevents connection loosening, ensures the position stability and light accuracy of the headlamp under harsh working conditions, and has the advantages of convenient adjustment and reliable installation.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, and in particular to a high-vibration adjustable headlight bracket. Background Technology

[0002] For vehicle headlights, especially those on heavy trucks and construction machinery that operate under high vibration conditions, installation stability is crucial. Severe vibration can not only cause the headlight beam angle to shift, affecting lighting performance and driving safety, but it can also directly damage the precision optical components, filaments, or LED connection points inside the headlight, shortening its lifespan.

[0003] Existing headlight brackets are mostly rigid connections or use simple rubber bushings for vibration damping, which have the following shortcomings: 1. Limited vibration reduction effect: Simple bushings are difficult to effectively filter complex vibrations in multiple directions and at high frequencies, and cannot meet the requirements for use under harsh working conditions; 2. Lack of adjustment function: After the bracket is installed, it is difficult to fine-tune the installation position or angle of the headlight, making it impossible to accurately calibrate the beam pattern, or it is easy to shift again due to vibration after calibration; 3. The contradiction between installation stability and vibration reduction: To ensure a firm connection, it is often necessary to lock it very tightly, which will compress the deformation space of the vibration damping element and weaken the vibration reduction effect; while to ensure the vibration reduction effect, a gap is reserved, which may lead to loosening of the connection.

[0004] Therefore, there is an urgent need for a headlight bracket that can simultaneously solve the problems of high vibration isolation, adjustable installation position, and stable connection. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-vibration adjustable headlight bracket that can effectively attenuate vibrations from the vehicle body and has installation and adjustment functions.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: a high-vibration adjustable headlight bracket, comprising a metal triangular plate, a first vibration damping component for connection with mounting sheet metal, and three second vibration damping components for connection with headlight radiators; the metal triangular plate includes a base located in the middle and three supporting portions evenly distributed around the base and tilted upwards, the base having a first through hole at its center, and the supporting portions having second through holes; the first vibration damping component includes a first bolt, a first adjusting base, a first rubber pad, a first washer group, and a first nut, the first bolt passing sequentially through the first through hole of the base, the first adjusting base, the first rubber pad, the mounting sheet metal, and the first washer group before being threadedly connected to the first nut, the first... An adjustable base has a limiting groove at its bottom. The upper part of the first rubber pad is placed in the limiting groove, and the lower part of the first rubber pad protrudes outside the limiting groove. The first adjustable base is a metal part, including a top panel and a side panel. The top panel and the side panel form the limiting groove. The center of the top panel has a third through hole for the first bolt to pass through. The top panel is concave downward to form an arc-shaped groove, and the bottom of the base is convex downward to form an arc-shaped protrusion. The arc-shaped protrusion cooperates with the arc-shaped groove. The second damping component includes a second bolt, a second washer group, a second rubber pad, and a third rubber pad. The second bolt passes through the second washer group, the second rubber pad, the second through hole of the support, and the third rubber pad in sequence before being threaded to the radiator. The principle of this invention is as follows: The first damping component (first rubber pad) isolates the vibration transmitted from the body sheet metal, and the second damping component (second and third rubber pads) bidirectionally isolates the vibration between the headlight radiator and the bracket, forming a multi-level, multi-directional damping barrier, significantly attenuating the vibration energy transmitted to the headlight. By using the spherical fit between the arc-shaped protrusion at the base of the metal triangular plate and the arc-shaped groove of the first adjustment base, the bracket as a whole can be tilted and swayed within a certain angle range relative to the mounting point on the vehicle body before installation and tightening, in order to accommodate installation errors or achieve optical axis pre-adjustment, making adjustment convenient.

[0007] As an improvement, the first gasket group includes a first flat gasket and a first spring gasket, with the first spring gasket located between the first nut and the first flat gasket; the second gasket group includes a second flat gasket and a second spring gasket, with the second flat gasket located between the second spring gasket and the second rubber gasket.

[0008] As an improvement, the second vibration damping components are arrayed on a horizontal plane; the first bolt and the second bolt are distributed at an angle of 0° to 60°.

[0009] As an improvement, a receiving groove is formed at the top of the base corresponding to the raised portion, and the head of the first bolt is disposed in the receiving groove.

[0010] As an improvement, the radiator is provided with an integrally formed mounting base, which includes three bosses, each of which corresponds to a second vibration damping component. Each boss has an inclined surface, and the inclined surface has a second threaded hole. The second bolt is perpendicular to the inclined surface and locked in the second threaded hole.

[0011] As an improvement, the headlight bracket is located on the back and / or bottom of the radiator.

[0012] The beneficial effects of this invention compared to the prior art are: 1. Three-stage vibration reduction design: The first vibration reduction component (first rubber pad) isolates the vibration transmitted from the body sheet metal, and the second vibration reduction component (second and third rubber pads) isolates the vibration between the headlight radiator and the bracket in both directions, forming a multi-stage and multi-directional vibration reduction barrier, which significantly attenuates the vibration energy transmitted to the headlight. 2. Adjustable angle: By using the arc-shaped protrusion at the base of the metal triangle plate to match the spherical surface of the arc-shaped groove of the first adjustment base, the bracket as a whole can be tilted and swayed within a certain angle range relative to the mounting point on the vehicle body before installation and tightening, so as to adapt to installation errors or achieve optical axis pre-adjustment, making adjustment convenient; 3. Stable and compact structure: The metal triangular plate adopts three triangularly distributed support parts to form a stable triangular support structure; the head of the first bolt is hidden in the receiving groove, the overall layout is reasonable and the space utilization rate is high. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the bracket and headlight assembly.

[0014] Figure 2 This is a schematic diagram of the support frame.

[0015] Figure 3 This is an exploded view of the support structure.

[0016] Figure 4 This is a cross-sectional view of the support frame. Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] like Figure 1 As shown, a high-vibration adjustable headlight bracket includes a metal triangular plate 1, a first vibration damping component 2 for connection with the mounting sheet metal, and three second vibration damping components 3 for connection with the headlight radiator 4.

[0019] like Figures 1 to 3As shown, the metal triangular plate 1 is formed by stamping or casting. The triangular plate 1 has a centrally located circular base 11 and three support portions 12 extending outwards from the edge of the base 11 and tilting upwards. The three support portions 12 are evenly distributed around the center of the base 11. A first through hole 111 is formed at the center of the base 11, and its bottom is stamped downwards to form a spherical segment-shaped arc-shaped protrusion 112, with a corresponding recessed receiving groove 113 formed at the top. A second through hole 121 is formed at the end of each support portion 12.

[0020] like Figures 1 to 3 As shown, the first damping assembly 2 is used to connect the bracket to the vehicle body mounting sheet metal. It includes a first bolt 21, a first adjusting base 22, a first rubber pad 23, a first washer group, and a first nut 25. The first washer group includes a first flat washer 24 and a first spring washer 26, with the first spring washer 26 located between the first nut 25 and the first flat washer 24. The first adjusting base 22 is a metal cup-shaped component, consisting of a circular top panel and cylindrical side panels surrounding its edge, with a limiting groove 221 formed inside. A third through hole is opened in the center of the top panel, and its side facing the base 11 is recessed to form an arc-shaped groove 222 that matches the arc-shaped protrusion 112. The first rubber pad 23 is square, with a large portion of its upper part placed in the limiting groove 221 and a small portion of its lower part exposed. During assembly, the first bolt 21 passes sequentially through the first through hole 111 of the base 11, the third through hole of the first adjusting base 22, the center hole of the first rubber pad 23, the mounting hole of the body mounting sheet metal, the first flat washer 24, and the first spring washer 26, and is finally tightened with the first nut 25. The head of the first bolt 21 is accommodated in the receiving groove 113 of the base 11 to avoid interference with the second damping component 3. Before final tightening, the spherical fit between the arc-shaped protrusion 112 and the arc-shaped groove 222 allows the entire metal triangular plate 1 and its components to be finely adjusted relative to the first adjusting base 22 at multiple angles, and then fully locked after adjustment. The first rubber pad 23 is pressed between the mounting sheet metal 4 and the first adjusting base 22, providing the main longitudinal damping. The first adjusting base 22 has the function of limiting the compression stroke of the first rubber pad 23; once the first rubber pad 23 is fully compressed into the receiving groove 113, it cannot be compressed further.

[0021] like Figures 1 to 3As shown, the second vibration damping assembly 3 consists of three groups, corresponding to three support parts 12, used to connect the bracket and the headlight radiator 4. Each group includes a second bolt 31, a second washer group 32, a second rubber pad 33, and a third rubber pad 34. The second washer group 32 includes a second flat washer 321 and a second spring washer 322, with the second flat washer 321 located between the second spring washer 322 and the second rubber pad 33. The second rubber pad 33 and the third rubber pad 34 are located on the upper and lower sides of the support part 12, respectively. The second bolt 31 passes sequentially through the second washer group 32, the second rubber pad 33, the second through hole 121 of the support part 12, and the third rubber pad 34, and is finally screwed into the second threaded hole of the mounting seat 41 on the radiator 4. The mounting seat 41 on the radiator 4 is integrally cast and has three bosses corresponding to the support part 12. Each boss has an inclined surface machined on it, and the second threaded hole is located on the inclined surface with its axis perpendicular to the inclined surface. This allows the second bolt 31 to be screwed in vertically, making installation convenient and ensuring that the rubber pad is evenly compressed. The second rubber pad 33 and the third rubber pad 34 work together to buffer the relative movement and vibration between the radiator 4 and the bracket in all directions. The second vibration damping components are arrayed on the horizontal plane, with the first bolt 21 and the second bolt 31 distributed at an angle of 0° to 60°.

[0022] During installation, first pre-install the first damping component 2 onto the metal triangle plate 1, and then initially fix the entire assembly to the vehicle body mounting sheet metal using the first bolt 21. At this point, necessary angle adjustments can be made. After adjustment, tighten the first nut 25. Next, fix the headlight radiator 4 to the three support parts 12 of the metal triangle plate 1 using three sets of second damping components 3, and tighten the three second bolts 31 in sequence to complete the installation. This bracket can be installed on the back of the radiator 4, or at the bottom or other locations as required by the design.

Claims

1. A high-vibration adjustable headlight bracket, characterized in that: The device includes a metal triangular plate, a first damping assembly for connection with the mounting sheet metal, and three second damping assemblies for connection with the headlight radiator. The metal triangular plate includes a central base and three upwardly inclined support portions evenly distributed around the base. The base has a first through hole at its center, and the support portions have second through holes. The first damping assembly includes a first bolt, a first adjusting base, a first rubber pad, a first washer set, and a first nut. The first bolt passes sequentially through the first through hole in the base, the first adjusting base, the first rubber pad, the mounting sheet metal, and the first washer set before being threaded into the first nut. The bottom of the first adjusting base has a limiting groove. The upper part of the first rubber pad is placed in the limiting groove, and the lower part of the first rubber pad protrudes outside the limiting groove. The first adjusting base is a metal part, which includes a top panel and a side panel. The top panel and the side panel form the limiting groove. The center of the top panel is provided with a third through hole for the first bolt to pass through. The top panel is recessed downward to form an arc-shaped groove. The bottom of the base is raised downward to form an arc-shaped protrusion. The arc-shaped protrusion cooperates with the arc-shaped groove. The second vibration damping component includes a second bolt, a second washer group, a second rubber pad and a third rubber pad. The second bolt passes through the second washer group, the second rubber pad, the second through hole of the support part and the third rubber pad in sequence and is then threadedly connected to the radiator.

2. The high-vibration adjustable headlight bracket according to claim 1, characterized in that: The first gasket group includes a first flat gasket and a first spring gasket, with the first spring gasket located between the first nut and the first flat gasket; the second gasket group includes a second flat gasket and a second spring gasket, with the second flat gasket located between the second spring gasket and the second rubber gasket.

3. The high-vibration adjustable headlight bracket according to claim 1, characterized in that: The second vibration damping components are arranged in an array on a horizontal plane; the first bolt and the second bolt are distributed at an angle of 0° to 60°.

4. The high-vibration adjustable headlight bracket according to claim 1, characterized in that: A receiving groove is formed at the top of the base corresponding to the raised area, and the head of the first bolt is located in the receiving groove.

5. A high-vibration adjustable headlight bracket according to claim 1, characterized in that: The radiator is provided with an integrally formed mounting base, which includes three bosses. Each boss corresponds to a second vibration damping component. Each boss has an inclined surface, and the inclined surface has a second threaded hole. The second bolt is perpendicular to the inclined surface and locked in the second threaded hole.

6. The high-vibration adjustable headlight bracket according to claim 1, characterized in that: The headlight bracket is located on the back and / or bottom of the radiator.

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