Dimming bolt for vehicle lamp adjusting device

Abstract

The utility model discloses a dimming bolt used for a car lamp adjusting device, the dimming bolt is provided with a shoulder part, an annular groove, a step part, a thread part and a smooth part from top to bottom in sequence, the step part comprising two steps is arranged, and when the dimming bolt is adjusted towards the direction of a lamp shell, the step part is provided with the thread part and the smooth part; the transmission assembly can more quickly touch the step part to limit the dimming bolt, so that the stability of the lamp is ensured; the smooth part with the smooth outer surface is arranged, so that when the dimming bolt is adjusted in the direction far away from the lamp shell, the dimming bolt is prevented from being disengaged, and the stability and safety of the lamp are guaranteed; the axial length of the step portion ranges from 6 cm to 8 cm, preferably 7 cm, the axial length of the smooth portion ranges from 13 cm to 15 cm, preferably 14 cm, the axial length of the threaded portion is maximized under the condition that the bolt can be prevented from slipping off and being excessively adjusted, and the adjustable range of the dimming bolt is guaranteed; according to the device, the dimming bolt is optimized, the structure is simplified, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile lamp manufacturing, in particular to a dimming bolt used for an automobile lamp adjusting device. Background Art

[0002] Under different load conditions, if the high and low beam optical axes are too high or too low, it will affect the driver's field of vision. Therefore, automotive lamps need to have a certain adjustable angle range to ensure the best lighting effect and field of vision. However, under extreme conditions, if the operator is not clear about the lamp usage specifications or misoperates, the dimming bolt in the lamp will be over-adjusted or even fall out.

[0003] Therefore, there is a need in the art for a simplified vehicle lamp adjustment structure that can prevent the dimming bolt from falling out or being over-adjusted, thereby ensuring the stability and safety of the lamp. Summary of the invention

[0004] The purpose of the utility model is to provide a dimming bolt for a vehicle light adjustment device to solve the problems existing in the above-mentioned prior art, simplify the vehicle light adjustment structure, prevent the dimming bolt from falling out or over-adjusting, and ensure the stability and safety of the lamp.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a dimming bolt for a vehicle lamp adjustment device, wherein the dimming bolt is provided with a shoulder, an annular groove, a step portion, a threaded portion and a smooth portion in sequence from top to bottom, the dimming bolt passes through a lamp housing, the lamp housing is located between the shoulder and the annular groove, a retaining ring is clamped in the annular groove, the threaded portion is threadedly connected to a transmission component fixedly connected to the vehicle lamp, the diameter of the step portion gradually decreases from one end close to the annular groove to one end away from the annular groove, the step portion includes two steps, the axial length of the step portion is in the range of 6-8 cm, the outer surface of the smooth portion is smooth, and the axial length of the smooth portion is in the range of 13-15 cm.

[0007] Preferably, an O-ring is provided between the shoulder and the lamp housing.

[0008] Preferably, the retaining ring comprises an arc-shaped support plate and a conical support plate which are integrally connected, the conical support plate is truncated into a cone shape and is clamped in the annular groove, and the arc-shaped support plate abuts against the lower end surface of the lamp housing.

[0009] Preferably, a plurality of rectangular grooves are provided on the side of the conical support plate.

[0010] Preferably, the number of the rectangular grooves is six, and the rectangular grooves are arranged at equal angles on the conical support plate.

[0011] Preferably, a flat washer and a wave washer are sequentially arranged between the lamp housing and the backstop ring.

[0012] Preferably, a boss portion is provided at one end of the smooth portion away from the shoulder portion, and a diameter of the boss portion is smaller than a diameter of the smooth portion.

[0013] Preferably, the lower end of the boss portion is rounded.

[0014] Preferably, a plurality of teeth evenly arranged and vertically drooping are provided around the shoulder.

[0015] Compared with the prior art, the utility model has achieved the following beneficial technical effects:

[0016] 1. The dimming bolt for the vehicle light adjustment device provided by the utility model is provided with a step portion including two steps. Compared with the step portion provided with a single step in the prior art, when adjusting in the direction of the lamp housing, the transmission assembly can touch the step portion more quickly to limit the dimming bolt. Even if an erroneous operation occurs, the two steps can better avoid excessive adjustment of the dimming bolt, thereby ensuring the stability of the lamp.

[0017] 2. The dimming bolt for the vehicle light adjustment device provided by the utility model has a smooth portion with a smooth outer surface. When it is adjusted in a direction away from the lamp housing, after the transmission assembly moves to the smooth portion, the transmission assembly will not be able to move further because the smooth portion has no threads, thereby preventing the dimming bolt from falling out and ensuring the stability and safety of the lamp.

[0018] 3. The axial length of the step portion is in the range of 6-8 cm, preferably 7 cm, and the axial length of the smooth portion is in the range of 13-15 cm, preferably 14 cm. The axial length of the threaded portion is maximized while preventing the bolt from slipping and over-adjustment, thereby ensuring the adjustable range of the dimming bolt. Moreover, the device optimizes the dimming bolt itself without adding other components to the splicing, thereby simplifying the structure and reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1It is a cross-sectional structural schematic diagram of the dimming bolt assembly used in the vehicle light adjustment device of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the dimming bolt in the utility model;

[0022] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of the dimming bolt assembly in the prior art.

[0023] In the figure: 1-shoulder, 2-annular groove, 3-threaded portion, 4-smooth portion, 5-lamp housing, 6-retractable retaining ring, 7-transmission assembly, 8-first step portion, 9-second step portion, 10-O-shaped washer, 11-arc-shaped support plate, 12-conical support plate, 13-rectangular groove, 14-flat washer, 15-wave washer, 16-boss portion. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model aims to provide a dimming bolt for a vehicle lamp adjusting device to solve the problems existing in the prior art.

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] The utility model provides a dimming bolt for a vehicle lamp adjustment device, such as Figure 1-Figure 2 As shown, the dimming bolt is provided with a shoulder 1, an annular groove 2, a step portion, a threaded portion 3 and a smooth portion 4 from top to bottom in sequence. The dimming bolt passes through the lamp housing 5. The lamp housing 5 is located between the shoulder 1 and the annular groove 2. A retaining ring 6 is clamped in the annular groove 2. The retaining ring 6 is used to prevent the lamp housing 5 from falling off and fix the lamp housing 5 between the shoulder 1 and the annular groove 2. The threaded portion 3 is provided with threads and is threadedly connected to a transmission assembly 7 fixedly connected to the vehicle lamp. The diameter of the step portion gradually decreases from the end close to the annular groove 2 to the end away from the annular groove 2. The step portion includes two steps, namely a first step portion 8 and a second step portion 9. The two step portions are smoothly connected. When the dimming bolt is adjusted toward the lamp housing 5, the transmission assembly 7 can touch the step portion more quickly to limit the dimming bolt. Even if an erroneous operation occurs, the two steps can better avoid excessive adjustment of the dimming bolt and ensure the stability of the lamp. In the prior art, Figure 3 As shown, the dimming bolt has only the first step 8, which is used for both position limiting and assembly with other fasteners. This effect may not be guaranteed under extreme working conditions. In this device, the second step 9 at the lower part is used for position limiting, and the first step 8 at the upper part is used for assembly with other fasteners, thereby improving the safety of the lamp.

[0028] A smooth portion 4 is provided at the lower part of the dimming bolt, and the outer surface of the smooth portion 4 is smooth. When the dimming bolt is adjusted in a direction away from the lamp housing 5, after the transmission assembly 7 moves to the smooth portion 4, since the smooth portion 4 is not provided with threads, the transmission assembly 7 will not be able to move further, thereby preventing the dimming bolt from falling out and ensuring the stability and safety of the lamp. Figure 3 As shown, no smooth portion is provided, and the threaded portion 3 continues to the end of the dimming bolt. When an erroneous operation occurs, the transmission component will continue to engage with the dimming bolt thread, which may easily cause the dimming bolt to fall out.

[0029] The axial length of the step portion is in the range of 6-8 cm, preferably 7 cm, and the axial length of the smooth portion 4 is in the range of 13-15 cm, preferably 14 cm. The axial length of the threaded portion 3 is maximized while preventing the bolt from slipping and over-adjustment, thereby ensuring the adjustable range of the dimming bolt. Moreover, the device is an optimization of the dimming bolt itself, without adding other components to the splicing, thus avoiding the risk of missing or wrong installation during the installation process, thereby simplifying the structure and reducing the manufacturing cost.

[0030] In this embodiment, an O-ring 10 is disposed between the shoulder 1 and the lamp housing 5 , and the O-ring 10 is used to seal between the shoulder 1 and the lamp housing 5 .

[0031] In this embodiment, the backstop ring 6 includes an arc-shaped support plate 11 and a conical support plate 12 connected in one piece, the conical support plate 12 is truncated and clamped in the annular groove 2, the arc-shaped support plate 11 abuts against the lower end surface of the lamp housing 5, and a plurality of rectangular grooves 13 are provided on the side of the conical support plate 12. The backstop ring 6 can prevent the lamp housing 5 from slipping off, and the number of the rectangular grooves 13 is six, and the rectangular grooves 13 are arranged at equal angles on the conical support plate. By providing the rectangular grooves 13, the air permeability of the lamp housing 5 is also achieved while ensuring anti-slipping.

[0032] In this embodiment, a flat washer 14 and a wave washer 15 are sequentially arranged between the lamp housing 5 and the backstop ring 6. The flat washer 14 can improve the wear resistance between the lamp housing 5 and the dimming bolt, and the wave washer 15 is used to increase the axial support force of the dimming bolt.

[0033] In this embodiment, a boss portion 16 is provided at one end of the smooth portion 4 away from the shoulder portion 1. The diameter of the boss portion 16 is smaller than the diameter of the smooth portion 4. The lower end of the boss portion 16 is chamfered to make it easier to pass the dimming bolt through the transmission assembly 7 and the lamp housing 5.

[0034] In this embodiment, a plurality of teeth evenly arranged and drooping vertically are provided around the shoulder 1, thereby enhancing the stability of the dimming bolt.

[0035] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A dimming bolt for a vehicle light adjustment device, characterized in that: The dimming bolt is provided with a shoulder, an annular groove, a step portion, a threaded portion and a smooth portion in sequence from top to bottom. The dimming bolt passes through the lamp housing, and the lamp housing is located between the shoulder and the annular groove. A retaining ring is clamped in the annular groove. The outer surface of the threaded portion is provided with a thread and is threadedly connected to a transmission assembly fixedly connected to the vehicle lamp. The diameter of the step portion gradually decreases from one end close to the annular groove to the end away from the annular groove. The step portion includes a first step portion and a second step portion, and the outer surface of the intersection of the first step portion and the second step portion is smoothly arranged; the outer surface of the smooth portion is smooth, and the axial length of the smooth portion is in the range of 13-15cm.

2. The dimming bolt for a vehicle light adjustment device according to claim 1, characterized in that: An O-shaped gasket is arranged between the shoulder and the lamp housing.

3. The dimming bolt for a vehicle light adjustment device according to claim 1, characterized in that: The backstop ring comprises an arc-shaped support plate and a conical support plate which are integrally connected. The conical support plate is truncated and clamped in the annular groove. The arc-shaped support plate abuts against the lower end surface of the lamp housing.

4. The dimming bolt for a vehicle light adjustment device according to claim 3, characterized in that: A plurality of rectangular grooves are arranged on the side of the conical support plate.

5. The dimming bolt for a vehicle light adjustment device according to claim 4, characterized in that: The number of the rectangular grooves is six, and the rectangular grooves are arranged at equal angles on the conical support plate.

6. The dimming bolt for a vehicle light adjustment device according to claim 1, characterized in that: A flat washer and a wave washer are arranged in sequence between the lamp housing and the backstop ring.

7. The dimming bolt for a vehicle light adjustment device according to claim 1, characterized in that: A boss portion is disposed at one end of the smooth portion away from the shoulder portion, and a diameter of the boss portion is smaller than a diameter of the smooth portion.

8. The dimming bolt for a vehicle light adjustment device according to claim 7, characterized in that: The lower end of the boss portion is rounded.

9. The dimming bolt for a vehicle light adjustment device according to claim 1, characterized in that: A plurality of teeth portions which are evenly arranged and vertically drooped are arranged around the shoulder portion.

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