Lateral dimming screw structure of automobile headlamp

Abstract

The utility model discloses a lateral dimming screw rod structure of an automobile headlamp, which relates to the technical field of automobile lamp dimming parts and comprises a screw rod main body and two limiting parts, one end of the screw rod main body is an input end, the other end of the screw rod main body is a connecting end, external threads are arranged on the screw rod main body, a limiting part is further arranged on the screw rod main body, and the limiting parts are arranged on the screw rod main body. The screw rod structure comprises a screw rod body, two limiting pieces are arranged on the screw rod body, a limiting component used for limiting and fixing the screw rod body is jointly arranged on the two limiting pieces, a mounting block is fixedly connected to the side face of each limiting piece, a first threaded through hole is formed in the surface of each mounting block, a mounting plate is fixedly connected to the surface of each limiting piece, and a second threaded through hole is formed in the surface of each mounting plate. And sliding friction force between the limiting piece and the rotating rod can be converted into rolling friction when automobile high and low beams are adjusted, the friction force is smaller, the service life of the screw main body and the limiting piece is prolonged, safety guarantee is provided for frequent automobile lamp switching in the night driving process of an automobile, and the automobile high and low beam adjusting screw is worthy of application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamp dimming components, in particular to a lateral dimming screw structure for a vehicle headlamp. Background Art

[0002] Automobile lights are important functional parts of automobiles, and the role of high and low beams in the front combination lights of automobiles is an important part of the active safety of automobiles. While ensuring that the lights illuminate the road ahead, they must also ensure that they do not cause glare to oncoming vehicles. The front combination lights are the most complex among automobile lights. Generally speaking, the front combination lights are mainly composed of high beams, low beams, turn signal lights, position lights, etc. Among them, the light distribution of high beams and low beams is the focus and difficulty of lamp design. In order to ensure that the headlights have sufficient illumination and a wide enough lighting range after installation, and are not dazzling, it is necessary to adjust the light deviation caused by different road conditions, which requires a headlight dimming structure to maintain the light type of the headlights after installation.

[0003] Currently, the more common dimming mechanism includes a dimming screw, a lifting adjuster, a support track on the shell, and a ball seat. The dimming screw is installed on the shell, with one end outside the shell as the input end of the adjusting force, and the other end inside the shell and fixed by a limit mechanism.

[0004] For example, Chinese patent CN216034059U discloses a headlight dimming screw assembly, including a rod body and a limiting mechanism sleeved on the rod body. The first limiting groove and the second limiting groove on the rod body can cooperate with the arc-shaped clamping sleeve to stably limit the rod body to prevent axial displacement of the rod body during rotation, and the stability is high. Secondly, the design of the secondary limiting groove and the arc-shaped clamping strip can further improve the stability of the rod body during rotation.

[0005] However, when a car is driving at night, the frequency of switching between high and low beam lights is high, and the rotation frequency of the screw body relative to the limiting mechanism is also high. The above-mentioned referenced document limits the screw body by means of an arc-shaped sleeve and a limiting groove. The sliding friction generated by the relative rotation between the arc-shaped sleeve and the limiting groove is relatively large, which reduces the service life of the dimming screw and is not conducive to use. Utility Model Content

[0006] The utility model aims to provide a lateral dimming screw structure for a car headlight, which has the effect of solving the problems mentioned in the background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a side dimming screw structure of a car headlight, comprising a screw body and a limiter, one end of the screw body is an input end, and the other end is a connecting end, the screw body is provided with an external thread, and the screw body is also provided with a limiter;

[0008] There are two limiters, and the two limiters are provided with a limit component for limiting and fixing the screw body;

[0009] The limiting portion is provided with an auxiliary component for reducing the friction between the screw body and the limiting member when the screw body rotates.

[0010] Optionally, the limiting component includes a connecting shell fixedly connected to the side of the limiting part, the surface of the limiting part is connected to a rotating sleeve for fixed-axis rotation, the surface of the rotating sleeve is fixedly connected to a plurality of elastic protrusions distributed in a circular array, and the inner wall of the connecting shell is provided with a fixing groove for the elastic protrusion to extend into and adapt to.

[0011] Optionally, two groups of the connection shells are provided, and the two groups of the connection shells are respectively provided on the left and right sides of the limiting member;

[0012] The rotating sleeves are also provided in two groups, and correspond one to one with the two groups of connecting shells.

[0013] Optionally, the auxiliary component includes a plurality of balls 1 embedded in the limiting portion and distributed in a circumferential array, and the inner wall of the limiting member is provided with a slide groove 1 for the balls 1 to roll;

[0014] A fixing ring is fixedly connected to the limiting part, a plurality of balls 2 distributed in a circular array are embedded in the inner wall of the limiting part, and a sliding groove 2 for the balls 2 to roll is opened on the surface of the fixing ring.

[0015] Optionally, two groups of the auxiliary components are provided, and the two groups of the auxiliary components are symmetrically distributed on the limiting portion.

[0016] Optionally, a mounting block is fixedly connected to the side surface of the limiting member, and a threaded through hole 1 is formed on the surface of the mounting block.

[0017] Optionally, a mounting plate is fixedly connected to the surface of the limiting member, and a second threaded through hole is provided on the surface of the mounting plate.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] The utility model is used to adjust the high and low beam lights of an automobile so that the limiter and the screw body rotate relative to each other. Under the cooperation of ball one, slide groove one, ball two and slide groove two, the friction force generated by the relative rotation between the limiter and the screw body can be converted into rolling friction between ball one and ball two. Compared with the sliding friction force generated by the rotation between the traditional limiter and the screw body, the friction force is smaller, the service life of the screw body and the limiter is extended, and the safety protection is provided for the frequent switching of the lights of the automobile when driving at night. The utility model is worthy of promotion and use.

[0020] The utility model uses a fixing screw and a mounting block to fix the two limit members on the surface of the upper limit portion of the screw body, and the multiple elastic protrusions on the surface of the rotating sleeve can slide into the fixing grooves provided on the inner wall of the connecting shell. At this time, under the action of the elastic potential energy of the multiple elastic protrusions, the connecting shell and the rotating sleeve can be fixed, so that the two limit members can be more firmly sleeved on the surface of the screw body, thereby ensuring the limiting effect of the limit members on the screw body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric drawing of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the utility model when the limiting member is not sleeved on the screw body;

[0023] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 It is a cross-sectional view of the limiter structure in the utility model;

[0025] Figure 5 It is a schematic diagram of the limit member structure in the utility model.

[0026] In the figure: 1. screw body; 2. limiter; 3. connecting shell; 4. mounting plate; 5. threaded through hole 2; 6. threaded through hole 1; 7. mounting block; 8. elastic protrusion; 9. rotating sleeve; 11. fixing groove; 13. ball 2; 14. slide groove 1; 15. ball 1; 16. fixing ring; 17. slide groove 2; 101. input end; 102. connecting end; 103. external thread; 104. limiter. DETAILED DESCRIPTION

[0027] 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.

[0028] For example, see Figures 1 to 5 The utility model provides a side dimming screw structure of a car headlight, comprising a screw body 1 and a limiter 2, one end of the screw body 1 is an input end 101, the other end is a connecting end 102, an external thread 103 is arranged on the screw body 1, and a limiter 104 is also arranged on the screw body 1;

[0029] Two limiting members 2 are provided, and a limiting member is provided on the two limiting members 2 together, an auxiliary member is provided on the limiting portion 104, a mounting block 7 is fixedly connected to the side of the limiting member 2, and a threaded through hole 6 is provided on the surface of the mounting block 7; a mounting plate 4 is fixedly connected to the surface of the limiting member 2, and a threaded through hole 2 5 is provided on the surface of the mounting plate 4.

[0030] More specifically, when this embodiment is used, Figure 1 As shown, at this time, the two limit members 2 are closed to each other and sleeved on the surface of the screw body 1. At this time, the mounting blocks 7 on the two limit members 2 are fitted together. By fixing the screws, the two limit members 2 can be fixedly sleeved on the surface of the upper limit portion 104 of the screw body 1, and then the limit members 2 can be fixed inside the shell where the adjusting screw is placed through the mounting plate 4 on the surface of the limit members 2.

[0031] Since the size of the limiting member 2 is exactly the same as the size of the limiting portion 104, the fit during sleeve connection is better, and the relative rotation of the limiting member 2 and the screw body 1 can be more stable when switching and adjusting the car lights.

[0032] Furthermore, the auxiliary component includes a plurality of balls 15 embedded in the limiting part 104 and distributed in a circumferential array, and the inner wall of the limiting part 2 is provided with a slide groove 14 for the balls 15 to roll;

[0033] A fixing ring 16 is fixedly connected to the limiting part 104 . A plurality of balls 13 distributed in a circumferential array are embedded in the inner wall of the limiting part 2 . A sliding groove 17 for the balls 13 to roll is formed on the surface of the fixing ring 16 .

[0034] Two groups of auxiliary components are provided, and the two groups of auxiliary components are symmetrically distributed on the limiting portion 104 .

[0035] When the high and low beams of the vehicle are switched to be adjusted, the stopper 2 and the screw body 1 rotate relative to each other. Figure 2 , Figure 3 and Figure 4 As shown, at this time, the rotation of the screw body 1 will cause multiple balls 15 to slide in the slide groove 14, and multiple balls 13 will slide in the slide groove 17, so that the friction force when the limit member 2 and the screw body 1 rotate relative to each other can be converted into the rolling friction of the balls 15 and 13, and the friction force is smaller, which ensures the limiting effect of the limit member 2 on the screw body 1 while also extending the service life of the screw body 1 and the limit member 2.

[0036] Embodiment 2, based on the above embodiment:

[0037] Furthermore, the limiting component in Example 1 is disclosed, which includes a connecting shell 3 fixedly connected to the side of the limiting member 2, the surface of the limiting portion 104 is connected to a rotating sleeve 9 for fixed-axis rotation, the surface of the rotating sleeve 9 is fixedly connected to a plurality of elastic protrusions 8 distributed in a circular array, and the inner wall of the connecting shell 3 is provided with a fixing groove 11 for the elastic protrusion 8 to extend into and adapt to.

[0038] Two groups of connecting shells 3 are provided, and the two groups of connecting shells 3 are respectively arranged on the left and right sides of the limiting member 2;

[0039] There are also two groups of rotating sleeves 9 , which correspond one to one with the two groups of connecting shells 3 .

[0040] More specifically, when the present embodiment is used, after the two limit members 2 are fixedly sleeved on the surface of the upper limit portion 104 of the screw body 1 by using the fixing screws and the mounting block 7, as shown in FIG. Figure 3 and Figure 4 As shown, the multiple elastic protrusions 8 on the surface of the rotating sleeve 9 will slide into the fixing grooves 11 provided on the inner wall of the connecting shell 3. At this time, under the action of the elastic potential energy of the multiple elastic protrusions 8, the connecting shell 3 and the rotating sleeve 9 can be fixed, so that the two limiting members 2 can be more firmly sleeved on the surface of the screw body 1, which has a better limiting effect on the screw body 1 and is worthy of promotion and use.

[0041] It is worth noting that when the car is being maintained, the two limit members 2 can be removed from the screw body 1, and then a proper amount of lubricating oil can be added into the slide groove 14 and the slide groove 2 17 to further extend the service life of the limit members 2 and the screw body 1.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A side dimming screw structure for a vehicle headlight, comprising a screw body (1) and a stopper (2), characterized in that: One end of the screw body (1) is an input end (101), and the other end is a connection end (102); an external thread (103) is provided on the screw body (1); and a limiting portion (104) is also provided on the screw body (1); Two of the limiting members (2) are provided, and the two limiting members (2) are provided with a limiting component for limiting and fixing the screw body (1); The limiting portion (104) is provided with an auxiliary component for reducing the friction between the screw body (1) and the limiting member (2) when the screw body (1) rotates.

2. The side dimming screw structure of a vehicle headlight according to claim 1, characterized in that: The limiting component comprises a connecting shell (3) fixedly connected to a side surface of the limiting member (2); a rotating sleeve (9) is connected to the surface of the limiting portion (104) in a fixed-axis rotational manner; a plurality of elastic protrusions (8) distributed in a circumferential array are fixedly connected to the surface of the rotating sleeve (9); and a fixing groove (11) is provided on the inner wall of the connecting shell (3) for the elastic protrusions (8) to extend into and fit into.

3. The side dimming screw structure of a vehicle headlight according to claim 2, characterized in that: Two groups of the connection shells (3) are provided, and the two groups of the connection shells (3) are respectively provided on the left and right sides of the limiting member (2); The rotating sleeves (9) are also provided in two groups, and correspond one to one with the two groups of connecting shells (3).

4. The side dimming screw structure of a vehicle headlight according to claim 1, characterized in that: The auxiliary component comprises a plurality of balls (15) embedded in the limiting portion (104) and distributed in a circumferential array, and the inner wall of the limiting member (2) is provided with a slide groove (14) for the balls (15) to roll. A fixing ring (16) is fixedly connected to the limiting portion (104), a plurality of second balls (13) distributed in a circular array are embedded in the inner wall of the limiting member (2), and a second slide groove (17) for the second balls (13) to roll is provided on the surface of the fixing ring (16).

5. The side dimming screw structure of a vehicle headlight according to claim 4, characterized in that: Two groups of auxiliary components are provided, and the two groups of auxiliary components are symmetrically distributed on the limiting portion (104).

6. The side dimming screw structure of a vehicle headlight according to claim 1, characterized in that: A mounting block (7) is fixedly connected to the side surface of the limiting member (2), and a threaded through hole (6) is provided on the surface of the mounting block (7).

7. The side dimming screw structure of a vehicle headlight according to claim 1, characterized in that: A mounting plate (4) is fixedly connected to the surface of the limiting member (2), and a second threaded through hole (5) is provided on the surface of the mounting plate (4).

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