A dynamic magnetic suction locking positioning structure

Abstract

The utility model relates to the technical field of automobile lamps installation, specifically disclose a kind of positioning structure of dynamic magnetic attraction locking, comprising: for the light-adjusting light-adjusting screw;With the mutual fixation of car lamp and with the thread cooperation of light-adjusting screw adjusting seat;First suction accessory and second suction accessory are respectively arranged on light-adjusting screw and adjusting seat, and suction force along the axial direction of light-adjusting screw is generated between first suction accessory and second suction accessory, first suction accessory and second suction accessory are mutually matched, so that axial suction force between adjusting seat and light-adjusting screw is generated, further so that in the use process of light-adjusting screw, deviation of light-adjusting screw appears by the action of suction force to avoid external vibration, it plays the anti-vibration and anti-loosening effect of light-adjusting screw, the high-precision positioning of light-adjusting screw can be realized, and the assembly efficiency and service life of light-adjusting screw are effectively improved, and the maintenance frequency of light-adjusting screw is reduced.

Description

Technical Field

[0001] This application relates to the field of automotive lighting installation technology, and specifically discloses a dynamic magnetic locking positioning structure. Background Technology

[0002] In precision optics / backlight adjustment scenarios, dimming screws are typically used for adjustment. The principle is that the threaded connection between the dimming screw and the adjustment base allows the position or orientation of optical components to be changed by rotating the screw.

[0003] However, current dimming screws have the following drawbacks during use: First, because optical components rely on the threaded fit of the dimming screw, it is difficult to achieve stepless fine adjustment, which can easily lead to positioning ambiguity. Second, vehicle lights are prone to vibration due to different environments during use, which can cause the dimming screw and the adjustment seat to loosen, thus affecting the accuracy of dimming. Furthermore, after the dimming screw has been rotated for a long time, it is also prone to loosening and positional deviation. In view of this, this utility model provides a dynamic magnetic locking positioning structure to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the threaded fit between the traditional dimming screw and the adjustment seat is prone to loosening due to vibration, thus affecting the threaded fit between the dimming screw and the adjustment seat.

[0005] To achieve the above objectives, the basic solution of this utility model provides a dynamic magnetic locking positioning structure, comprising:

[0006] Dimming screws used for dimming;

[0007] An adjustment seat that is fixed to the vehicle headlights and threadedly engages with the dimming screw;

[0008] The first and second adsorption components, respectively located on the dimming screw and the adjustment seat, generate an adsorption force along the axis of the dimming screw.

[0009] Furthermore, the first adsorption element is a ring-shaped neodymium magnet located at the end of the dimming screw, and the second adsorption element is a soft iron magnetic ring located on the end face of the adjustment seat near the first adsorption element.

[0010] Furthermore, there is an air gap between the annular neodymium magnet and the soft iron magnetic ring along the axial direction of the dimming screw.

[0011] Furthermore, the width of the air gap is 0.1-0.3 mm, and the attraction force between the annular neodymium magnet and the soft iron magnetic ring is 1-3 N.

[0012] Furthermore, the adjusting seat has a mounting groove on the end face near the first adsorption member, and the side wall of the second adsorption member has an elastic locking block that can be inserted into the mounting groove.

[0013] Furthermore, both the cross-section of the mounting groove and the cross-section of the elastic block are annular;

[0014] Alternatively, there may be several mounting slots and several elastic clips.

[0015] Furthermore, the inner wall of the mounting groove is provided with an inclined surface extending from the middle of the mounting groove to the top and bottom of the mounting groove, and the bottom width, top width and middle width of the mounting groove increase sequentially, and the elastic block cooperates with the mounting groove.

[0016] The principle and effect of this solution are as follows:

[0017] Compared with the prior art, this utility model uses the cooperation of the first and second adsorption components to generate axial suction between the adjustment seat and the dimming screw. This suction prevents external vibration from causing positional deviation of the dimming screw during use, thus providing anti-vibration and anti-loosening effects for the dimming screw. It enables high-precision positioning of the dimming screw, effectively improves the assembly efficiency and service life of the dimming screw, and reduces the maintenance frequency of the dimming screw. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a dynamic magnetic locking positioning structure according to an embodiment of this application is shown;

[0020] Figure 2 A cross-sectional view of a dynamic magnetic locking positioning structure according to an embodiment of this application is shown. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] The reference numerals in the accompanying drawings include: 1. Dimming screw; 2. Adjustment seat; 3. Soft iron magnetic ring; 4. Ring neodymium magnet; 5. Elastic locking block.

[0023] A dynamic magnetic locking positioning structure, implementing, for example Figure 1 As shown: It includes a dimming screw for dimming, an adjustment seat that is fixed to the headlight and threadedly engaged with the dimming screw, and a first suction element and a second suction element respectively provided on the dimming screw and the adjustment seat.

[0024] The first adsorption component is a ring-shaped neodymium magnet located at the end of the dimming screw, and the second adsorption component is a soft iron magnetic ring located on the end face of the adjustment seat near the first adsorption component. There is an air gap along the axis of the dimming screw between the ring-shaped neodymium magnet and the soft iron magnetic ring. The width of the air gap is 0.1-0.3 mm. The attraction force between the ring-shaped neodymium magnet and the soft iron magnetic ring is 1-3 N. When adjusting, it is necessary to overcome the magnetic attraction force of about 0.1-0.3 N·m, but it can still be easily operated by manual rotation.

[0025] like Figure 2 As shown, the soft iron magnetic ring is installed by the interaction of an elastic locking block and a mounting groove on the adjusting seat. The mounting groove is located on the end face of the adjusting seat near the first adsorption element. The elastic locking block is inserted into the mounting groove for mutual engagement and fixation. To facilitate the insertion of the elastic locking block into the mounting groove and to prevent it from detaching, the vertical cross-section of the mounting groove is as shown. Figure 2 As shown, the inner wall of the mounting groove has an inclined surface extending from the middle of the mounting groove to the top and bottom of the mounting groove, so that the mounting groove as a whole has the structural characteristics of being wide in the middle and narrow at both ends. Furthermore, the bottom width, top width, and middle width of the mounting groove increase sequentially. Correspondingly, the cross-section of the elastic block is adapted to the cross-section of the mounting groove.

[0026] In this embodiment, the horizontal cross-section of the mounting groove is an annular shape coaxial with the dimming screw, and the elastic block is an annular block structure; in another embodiment, the mounting groove is a groove with a circular cross-section in the horizontal direction, which is evenly arranged on the adjusting seat, and the elastic block is a column that is evenly arranged on the soft iron magnetic ring and adapted to the mounting groove.

[0027] Compared with the prior art, this embodiment uses the cooperation of the first and second adsorption components to generate axial suction between the adjustment seat and the dimming screw. This suction prevents external vibration from causing positional deviation of the dimming screw during use, thus providing anti-vibration and anti-loosening effects for the dimming screw. It enables high-precision positioning of the dimming screw, effectively improves the assembly efficiency and service life of the dimming screw, and reduces the maintenance frequency of the dimming screw.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A dynamic magnetic locking positioning structure, characterized in that, include: Dimming screws used for dimming; An adjustment seat that is fixed to the vehicle headlights and threadedly engages with the dimming screw; The first and second adsorption components, respectively located on the dimming screw and the adjustment seat, generate an adsorption force along the axis of the dimming screw.

2. The positioning structure for dynamic magnetic locking according to claim 1, characterized in that, The first adsorption element is a ring-shaped neodymium magnet located at the end of the dimming screw, and the second adsorption element is a soft iron magnetic ring located on the end face of the adjustment seat near the first adsorption element.

3. The positioning structure for dynamic magnetic locking according to claim 2, characterized in that, An air gap exists between the annular neodymium magnet and the soft iron magnetic ring along the axis of the dimming screw.

4. The positioning structure for dynamic magnetic locking according to claim 3, characterized in that, The width of the air gap is 0.1-0.3 mm, and the attraction between the annular neodymium magnet and the soft iron magnetic ring is 1-3 N.

5. The positioning structure for dynamic magnetic locking according to claim 1, characterized in that, The adjusting seat has a mounting groove on the end face near the first adsorption element, and the side wall of the second adsorption element has an elastic locking block that can be inserted into the mounting groove.

6. The positioning structure for dynamic magnetic locking according to claim 5, characterized in that, The cross-section of the mounting groove and the cross-section of the elastic block are both annular; Alternatively, there may be several mounting slots and several elastic clips.

7. A dynamic magnetic locking positioning structure according to claim 5 or 6, characterized in that, The inner wall of the mounting groove is provided with an inclined surface extending from the middle of the mounting groove to the top and bottom of the mounting groove, and the bottom width, top width and middle width of the mounting groove increase sequentially. The elastic block cooperates with the mounting groove.

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