Connecting structure of dimming screw rod for car lamp

Abstract

The connecting structure comprises the dimming screw rod and a car lamp shell, a square guide groove is formed in the car lamp shell in the axial direction of the dimming screw rod, the inner wall of the guide groove abuts against a hollowed-out sliding block, one end of the sliding block is in threaded connection with a threaded part of the dimming screw rod, and the other end of the sliding block is in threaded connection with a threaded part of the dimming screw rod. The other end of the sliding block is provided with a ball part which is connected with a universal seat, the universal seat is connected with the lens assembly, arc-shaped plates are symmetrically arranged on the bottom end face of the sliding block, one side of each arc-shaped plate is connected with the bottom end face of the sliding block, a gap is reserved between the other side of each arc-shaped plate and the bottom end face of the sliding block, and the arc-shaped plates abut against the inner wall of the guide groove in an interference mode. According to the connecting structure, in the process of connecting the dimming screw for the automobile lamp, the dimming screw can be supported, fixed and damped, the overall vibration resistance of the automobile lamp is improved, the lens assembly is prevented from shaking and falling off, and the service life of the automobile lamp is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a connection structure for a dimming screw for automotive lights. Background Technology

[0002] Car lights are crucial safety components during vehicle operation, as their illumination directly affects the driver's vision and driving safety. Therefore, the headlight dimming screw is a key component for adjusting the beam angle and range of the headlights.

[0003] Currently, the existing connection structure of the dimming screw is as follows: Figure 1 As shown, a typical method involves inserting a dimming screw into a pre-drilled hole in the headlight housing. The threaded portion of the dimming screw is threadedly connected to a support base, which is connected to the lens assembly. When dimming is needed, the dimming screw is rotated for fine-tuning, causing the support base to move along the screw, which in turn moves the lens assembly to adjust its position or angle, thus changing the direction and range of light projection. However, during driving, the headlight vibrates due to road conditions, causing the dimming screw to wobble. The support base in the existing connection structure only provides support and fixation for the dimming screw, not vibration damping. Therefore, the wobble of the dimming screw can lead to shaking, wobbling, or even detachment of the reflector or lens assembly. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure for a dimming screw for vehicle lights. During the connection process, the dimming screw can be supported, fixed, and vibration-damped, thereby improving the overall vibration resistance of the vehicle light, preventing the lens assembly from shaking or falling off, and ensuring the service life of the vehicle light.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a connection structure for a dimming screw for a vehicle headlight, including a dimming screw and a headlight housing. The headlight housing has a square guide groove along the axial direction of the dimming screw. The inner wall of the guide groove abuts against a hollow sliding block. One end of the sliding block is threadedly connected to the threaded part of the dimming screw, and the other end of the sliding block has a ball head. The ball head is connected to a universal joint, which is connected to a lens assembly. The bottom end face of the sliding block is symmetrically provided with an arc-shaped plate. One side of the arc-shaped plate is connected to the bottom end face of the sliding block, and the other side of the arc-shaped plate has a gap with the bottom end face of the sliding block. The arc-shaped plate abuts against the inner wall of the guide groove.

[0007] Preferably, the guide groove has an opening above it, and the headlight housing has a supporting circular groove, which is located at the opening of the guide groove.

[0008] Preferably, a center of the supporting circular groove is provided with a supporting circular hole, the smooth part of the light adjusting screw is rotationally connected into the supporting circular hole, and the shoulder part of the light adjusting screw abuts against the outside of the supporting circular hole.

[0009] Preferably, the sliding block comprises a first upper corner part, a second upper corner part, a first straight part and a second straight part, and the first upper corner part, the second upper corner part, the first straight part and the second straight part abut against the inner wall of the guide groove respectively.

[0010] Preferably, the sliding block comprises a mounting column, and a mounting hole is arranged in the center of the mounting column and is provided with an internal thread.

[0011] Preferably, the internal thread cooperates with the external thread of the threaded part to make the threaded part of the light adjusting screw threadedly connected into the mounting hole.

[0012] Preferably, a connecting column is arranged on the sliding block, the connecting column is connected with a connecting rod, and the connecting rod is connected with the ball head part.

[0013] Preferably, the sliding block is approximately in the shape of an I-beam, and the sliding block is provided with a hollow part and a reinforcing rib.

[0014] Preferably, the highest point of the curved part of the arc-shaped plate is in interference abutment against the inner wall of the guide groove.

[0015] The utility model discloses relative to prior art has obtained following beneficial technical effect:

[0016] The connecting structure of the light adjusting screw for vehicle lamp inserts the light adjusting screw into the supporting circular hole on the vehicle lamp shell body to support and fix the smooth part of the light adjusting screw in use, the threaded part of the light adjusting screw is threadedly connected into the mounting hole of the sliding block to support and fix the threaded part of the light adjusting screw, the arc-shaped plate of the sliding block is in interference abutment against the inner wall of the guide groove, when the driver needs to adjust light, rotates the light adjusting screw, will drive the sliding block to move in the guide groove along the axial direction of the light adjusting screw, and then drives the universal seat to move, and then drives the lens assembly to move to realize light adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic view of the connecting structure of the light adjusting screw rod for vehicle lamp in the prior art in the utility model;

[0018] Figure 2 It is the structure schematic view of the connecting structure of the light adjusting screw rod for vehicle lamp in the utility model;

[0019] Figure 3 It is the explosion structure schematic view of the connecting structure of the light adjusting screw rod for vehicle lamp in the utility model;

[0020] Figure 4 It is the structure schematic view of the guide groove of the connecting structure of the light adjusting screw rod for vehicle lamp in the utility model;

[0021] Figure 5 It is the structure schematic view of the sliding block of the connecting structure of the light adjusting screw rod for vehicle lamp in the utility model;

[0022] In the drawing: 1-light adjusting screw rod, 2-vehicle lamp shell, 3-guide groove, 4-opening part, 5-supporting circular groove, 6-supporting circular hole, 7-smooth part, 8-shoulder part, 9-sliding block, 10-mounting column, 11-mounting hole, 12-connecting column, 13-connecting rod, 14-ball head part, 15-gimbal, 16-lens assembly, 17-first upper corner part, 18-second upper corner part, 19-first straight type part, 20-second straight type part, 21-arc-shaped plate, 22-bottom end face, 23-hollow part, 24-reinforcing rib, 25-supporting seat. DETAILED DESCRIPTION

[0023] The utility model provides a kind of connecting structure of light adjusting screw rod for vehicle lamp, as shown in Figures 2-5 It is shown in the drawing: 1-light adjusting screw rod, 2-vehicle lamp shell, 3-guide groove, 4-opening part, 5-supporting circular groove, 6-supporting circular hole, 7-smooth part, 8-shoulder part, 9-sliding block, 10-mounting column, 11-mounting hole, 12-connecting column, 13-connecting rod, 14-ball head part, 15-gimbal, 16-lens assembly, 17-first upper corner part, 18-second upper corner part, 19-first straight type part, 20-second straight type part, 21-arc-shaped plate, 22-bottom end face, 23-hollow part, 24-reinforcing rib, 25-supporting seat.

[0024] The inner wall of the guide groove 3 abuts against a hollow sliding block 9, the sliding block 9 comprises a mounting column 10, the center of the mounting column 10 is provided with a mounting hole 11, the mounting hole 11 is provided with an internal thread (not shown), the threaded part (thread not shown) of the dimming screw rod 1 is matched with the internal thread, so that the threaded part of the dimming screw rod 1 is threadedly connected in the mounting hole 11. The sliding block 9 is provided with a connecting column 12, the connecting column 12 is connected with a connecting rod 13, the connecting rod 13 is connected with a ball head 14, the ball head 14 is connected with a universal seat 15, the universal seat 15 is connected with a lens assembly 16, when it is necessary to rotate the dimming screw rod 1 for fine adjustment to dim, the rotation of the threaded part of the dimming screw rod 1 will drive the mounting column 10 to move along the axial direction of the dimming screw rod 1, and then drive the sliding block 9 to move in the guide groove 3 along the axial direction of the dimming screw rod 1, and then drive the universal seat 15 to move, and then drive the lens assembly 16 to move, and then change the position or angle of the lens assembly 16 to change the light, realize dimming.

[0025] The sliding block 9 includes a first upper corner portion 17, a second upper corner portion 18, a first straight portion 19 and a second straight portion 20, which respectively abut against the inner wall of the guide groove 3, so that when fine adjustment of the light adjustment screw 1 is needed, the first upper corner portion 17, the second upper corner portion 18, the first straight portion 19 and the second straight portion 20 of the sliding block 9 can slide along the axial direction of the light adjustment screw 1 on the inner wall in the guide groove 3, thereby driving the gimbal seat 15 and the lens assembly 16 to move, achieving adjustment of the light, and the sliding block 9 plays a stable supporting role in the guide groove 3, and also achieves accurate guidance and stable connection of the light adjustment screw 1. The bottom end surface 22 of the sliding block 9 is symmetrically provided with an arc-shaped plate 21, one side of the arc-shaped plate 21 is connected to the bottom end surface 22 of the sliding block 9, and the other side of the arc-shaped plate 21 leaves a gap with the bottom end surface 22 of the sliding block 9, and the arc-shaped plate 21 abuts against the inner wall of the guide groove 3. In the preferred embodiment, the highest point of the curved portion of the arc-shaped plate 21 abuts against the inner wall of the guide groove 3 in an interference manner, so that the arc-shaped plate 21 is more tightly connected to the inner wall of the guide groove 3, and the sliding block 9 is more stably connected in the guide groove 3, preventing the sliding block 9 from shaking in the guide groove 3, and also improving the carrying capacity and impact resistance of the sliding block 9. When the light adjustment screw 1 is adjusted to the desired light, the vehicle will vibrate during driving, and the light adjustment screw 1 will vibrate accordingly, and the vibration of the light adjustment screw 1 will cause the vibration of the sliding block 9. Since one side of the arc-shaped plate 21 leaves a gap with the bottom end surface 22 of the sliding block 9, the arc-shaped plate 21 will deform when it is squeezed during vibration, and the arc-shaped plate 21 will vibrate together like a spring. The greater the vibration amplitude of the vehicle lamp housing 2, the greater the deformation of the arc-shaped plate 21, and the more vibration it absorbs. Thus, the arc-shaped plate 21 can not only fix and support the light adjustment screw 1, but also reduce vibration, ensuring the safety and reliability of the vehicle lamp, avoiding loosening and falling of the adjustment structure of the lens assembly 16 during severe working conditions or vibration bench tests, and avoiding quality problems such as light adjustment failure of the vehicle lamp assembly.

[0026] The sliding block 9 is generally in the shape of an I-beam, and the sliding block 9 is provided with a hollow portion 23 and a reinforcing rib 24. The hollow portion 23 not only ensures the fixing and supporting effect of the light adjustment screw 1, but also reduces the self-weight and the overall load of the connecting structure. The reinforcing rib 24 improves the rigidity and strength of the connecting structure, making the connecting structure more stable.

[0027] The connecting structure of the light adjusting screw for the vehicle lamp is inserted into the supporting circular hole 6 on the vehicle lamp shell 2 to support and fix the smooth part 7 of the light adjusting screw 1, and the threaded part of the light adjusting screw 1 is threadedly connected into the mounting hole 11 of the sliding block 9 to support and fix the threaded part of the light adjusting screw 1, the arc-shaped plate 21 on the sliding block 9 is in interference abutment with the inner wall of the guide groove 3, when the driver needs to adjust the light, the light adjusting screw 1 is rotated to drive the sliding block 9 to move in the guide groove 3 along the axial direction of the light adjusting screw 1, and then drive the universal seat 15 to move, and then drive the lens assembly 16 to move to realize light adjustment. Meanwhile, under the influence of the vibration caused by the vehicle driving, the vehicle lamp shell 2 also vibrates, the arc-shaped plate 21 arranged in the utility model vibrates with the vehicle lamp like a spring, the greater the vibration amplitude generated in the vehicle lamp, the greater the deformation of the arc-shaped plate 21, and the more the vibration absorbed, so that the arc-shaped plate 21 absorbs and offsets the vibration generated in the vehicle lamp, and plays a role in vibration reduction. Compared with the supporting seat 25 in the prior art which can only play a role in fixed support for the light adjusting screw 1, the utility model realizes the functions of fixed support and vibration reduction for the light adjusting screw 1, guarantees the safety and use reliability of the vehicle lamp, avoids the shaking and falling of the lens assembly 16, and guarantees the service life of the vehicle lamp.

[0028] The principle and implementation mode of the utility model are described by specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, according to the idea of the utility model, the specific implementation mode and application range will be changed by the general technical personnel in the field. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A connecting structure of a light adjusting screw for a vehicle lamp, comprising a light adjusting screw and a vehicle lamp housing, characterized by: The square guide groove is arranged on the vehicle lamp shell along the axial direction of the light adjusting screw, the inner wall of the guide groove abuts against a hollow sliding block, one end of the sliding block is threadedly connected with the threaded part of the light adjusting screw, the other end of the sliding block is provided with a ball head part, the ball head part is connected with a universal seat, the universal seat is connected with a lens assembly, the bottom end surface of the sliding block is symmetrically provided with arc-shaped plates, one side of the arc-shaped plate is connected with the bottom end surface of the sliding block, the other side of the arc-shaped plate is left with a gap from the bottom end surface of the sliding block, and the arc-shaped plate abuts against the inner wall of the guide groove.

2. The connecting structure of the light adjusting screw for vehicle light according to claim 1, characterized in that: An opening part is arranged above the guide groove, and a supporting circular groove is arranged on the vehicle lamp shell and arranged at the opening part of the guide groove.

3. The connecting structure of the light adjusting screw for vehicle light according to claim 2, characterized in that: A supporting circular hole is arranged at the center of the supporting circular groove, the smooth part of the light adjusting screw is rotationally connected into the supporting circular hole, and the shoulder part of the light adjusting screw abuts against the outside of the supporting circular hole.

4. The connecting structure of a light adjusting screw for a vehicle lamp according to claim 1, characterized in that: The sliding block comprises a first upper corner part, a second upper corner part, a first straight part and a second straight part, and the first upper corner part, the second upper corner part, the first straight part and the second straight part abut against the inner wall of the guide groove.

5. The connecting structure of a light adjusting screw for a vehicle lamp according to claim 1, characterized in that: The sliding block comprises a mounting column, and a mounting hole is arranged at the center of the mounting column and provided with an internal thread.

6. The connecting structure of the light adjusting screw for vehicle light according to claim 5, characterized in that: The internal thread cooperates with the external thread of the threaded part, so that the threaded part of the light adjusting screw is threadedly connected into the mounting hole.

7. The connecting structure of a light adjusting screw for a vehicle lamp according to claim 1, characterized in that: A connecting column is arranged on the sliding block, the connecting column is connected with a connecting rod, and the connecting rod is connected with the ball head part.

8. The connecting structure of a light adjusting screw for a vehicle lamp according to claim 1, characterized in that: The sliding block is substantially in the shape of an I-beam, and the sliding block is provided with a hollow part and a reinforcing rib.

9. The connecting structure of a light adjusting screw for a vehicle lamp according to claim 1, characterized in that: The highest point of the curved part of the arc-shaped plate is in abutment with the inner wall of the guide groove.

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