Limiting ball screw
By introducing the design of a limiting part and a limiting wall into the ball head screw, the problem of difficult angle control of the ball head screw in the headlight dimming structure is solved, and stable adjustment and safety are achieved.
Patent Information
- Application Number
- CN202422776428.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In the existing vehicle light dimming structure, the ball screw lacks angle limitation, resulting in difficult to control adjustment and easy to fall out, affecting the adjustment effect and safety.
A limited ball head screw is designed. By setting a limiting part and a limiting wall between the ball head seat and the rotating part, the deflection angle of the rotating part is limited to ensure its stable positioning within a specific angle range.
The ball screw can be adjusted stably, over-adjustment and disengagement can be avoided, and the adjustment effect and safety can be improved.
Smart Images
Figure CN223459683U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a limiting structure, more specifically, it relates to a limiting ball head screw. BACKGROUND
[0002] In the field of mechanical engineering, precision instruments and fastener manufacturing, the light adjusting structure of vehicle lamp is an important component. The light adjusting of vehicle lamp is mainly achieved by adjusting the height of light type, which involves the use of ball head screws. Ball head screws are a common type of fastener, characterized by a spherical head that provides multidirectional adjustment. In the light adjusting structure of vehicle lamp, ball head screws are used to adjust the height of light type to meet the regulatory requirements for vehicle lamp illumination. Prior art solution: Existing light adjusting structures of vehicle lamp use ball head screws to adjust the height of light type. The ball head screws are fixed in ball head seats, and by rotating the ball head screws, the height of light type can be changed. This design is simple, easy to operate, and has achieved good results in practical applications. Prior art problems: However, the existing light adjusting structure of vehicle lamp has some problems. First, the existing adjustment has no angle limit, and often results in over-adjustment in one direction when adjusting the light, leading to back-and-forth adjustment, which not only wastes time and effort, but also easily causes the ball head screw to come out of the ball head seat, affecting the adjustment effect and safety. Second, once the existing ball head screw is rotated in one direction, it will also cause the ball head screw to come out of the ball head seat, which not only affects the adjustment effect, but also poses a safety hazard. SUMMARY
[0003] The utility model overcomes the insufficient that the existing ball head screw has no limit to the deflection angle of the ball head, making it difficult to adjust and easy to come out, and provides a limiting ball head screw that can limit the deflection angle of the ball head, making it easy to position and preventing the ball head screw from coming out.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme:
[0005] A limiting ball head screw, comprising a ball head seat and a movable rod, the ball head seat is provided with a containing cavity, the movable rod comprises a rotating part, a limiting part and a connecting part, the rotating part is arranged in the containing cavity and connected with the ball head of the containing cavity, the cavity opening of the containing cavity is provided with a limiting wall, and a gap is provided between the limiting part and the limiting wall.
[0006] The ball head seat and the rotating part are connected by the ball head, and the rotating part can rotate in the circumferential direction relative to the ball head seat. The limiting part and the limiting wall cooperate to limit the freedom of the rotating part. When the limiting part and the limiting wall are in close contact, the rotating part cannot continue to rotate in this direction, thereby achieving the limiting effect, making it easy to position and preventing the ball head screw from coming out.
[0007] As preferred, the limiting part is arranged between the rotating part and the connecting part, and the limiting part is provided with a taper surface, and when the movable rod and the ball head seat are coaxial, the angle between the taper surface and the limiting wall is the same in each circumferential direction. The structure of the taper surface of the limiting part enables the limiting part and the limiting wall to provide limiting at each circumferential direction, and the angle of the limiting is the same.
[0008] As preferred, the angle between the taper surface and the limiting wall is 4 degrees.
[0009] As preferred, the length of the generatrix of the limiting wall is greater than the length of the generatrix of the taper surface. The structure improves the stability of the angle limiting.
[0010] As preferred, the limiting part is a limiting disc arranged on the connecting part, and when the movable rod and the ball head seat are coaxial, the distance from each position of the outer edge of the limiting disc to the limiting wall is the same.
[0011] As preferred, the rotating part is a sphere or a hemisphere.
[0012] As preferred, a fixing nail is further included, and the ball head seat is provided with a fixing hole at the end away from the opening of the accommodating cavity, and the fixing nail passes through the fixing hole.
[0013] As preferred, the connecting part is a bolt.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] (1) By arranging the limiting part and the limiting wall, the situation that the light is adjusted too much to cause the back and forth adjustment is avoided, and the ball head screw is prevented from being pulled out of the ball head seat;
[0016] (2) By arranging the limiting part and the limiting wall, the ball head screw is prevented from being pulled out of the ball head seat, and the safety is improved;
[0017] (3) By setting the gap between the limiting part and the limiting wall, the rotating part can be fixed at a certain angle in the accommodating cavity, the limiting is completed, and the adjustment effect and the safety are improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is the schematic view of the section of the utility model;
[0019] Figure 2 is the schematic view of the section of the utility model in the rotating state;
[0020] Figure 3 is the schematic view of the section of another embodiment;
[0021] Figure 4 is the schematic view of the section of another embodiment in the rotating state;
[0022] In the drawings:
[0023] Ball head seat 1, movable rod 2, containing cavity 3, rotating part 4, limiting part 5, connecting part 6, limiting wall 7, gap 8, fixing nail 9, limiting disc 10. DETAILED DESCRIPTION
[0024] The present disclosure will be further described below in conjunction with the drawings and embodiments.
[0025] It should be noted that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0026] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0027] In the present disclosure, the terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, which is only a relationship word determined for the convenience of describing the structural relationship of the components or elements of the present disclosure, and is not specific to any component or element in the present disclosure, and cannot be understood as a limitation of the present disclosure.
[0028] In the present disclosure, the terms such as "fixedly connected", "connected", "connected" should be understood broadly, which means that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant researchers or technicians in the art, the specific meaning of the above terms in the present disclosure can be determined according to the specific circumstances, and cannot be understood as a limitation of the present disclosure.
[0029] A limiting ball head screw, as shown in Figure 1 、 2 The ball head seat 1 and the movable rod 2 are shown, the ball head seat 1 is provided with a containing cavity 3, the movable rod 2 includes a rotating part 4, a limiting part 5 and a connecting part 6, the rotating part 4 is arranged in the containing cavity 3 and is connected with the containing cavity 3 by a ball head, the cavity opening of the containing cavity 3 is provided with a limiting wall 7, and the limiting part 5 and the limiting wall 7 are provided with a gap 8.
[0030] Wherein, the limiting part 5 is arranged between the rotating part 4 and the connecting part 6, the limiting part 5 is provided with a taper surface, when the movable rod 2 and the ball head base 1 are coaxial, the taper surface and the limiting wall 7 are provided with a gap 8 and the angle between them is the same in each circumferential direction. The structure of the taper surface of the limiting part 5 enables the limiting part 5 and the limiting wall 7 to provide limiting in each circumferential direction, and the angle of the limiting is the same. Specifically, the angle between the taper surface and the limiting wall 7 is 4 degrees.
[0031] In some embodiments, the length of the generatrix of the limiting wall 7 is greater than the length of the generatrix of the taper surface. The structure improves the stability of the angle limiting. In some embodiments, when the movable rod 2 rotates to the limit of travel, the taper surface and the limiting wall 7 are in close contact.
[0032] Further comprising a fixing nail 9, the ball head base 1 is provided with a fixing hole at the end away from the opening of the accommodating cavity 3, and the fixing nail 9 penetrates through the fixing hole.
[0033] Referring to Figure 3 , 4 In another embodiment, the limiting part is a limiting disc 10 arranged on the connecting part, when the movable rod and the ball head base are coaxial, the distance from each position of the outer edge of the limiting disc to the limiting wall is the same. In this embodiment, the limiting wall of the cavity opening of the accommodating cavity 3 is an end surface, when the movable rod 2 rotates, the limiting disc 10 abuts against the limiting wall 7, the movement is limited, and the movable rod cannot continue to move in this direction.
[0034] In some further embodiments, the disc surface of the limiting disc is also a taper surface, when the limiting disc 10 abuts against the limiting wall 7, the contact area is larger and the local pressure is lower.
[0035] In some embodiments, the connecting part 6 is a bolt. The rotating part 4 is a sphere or a hemisphere.
[0036] The ball head base 1 and the rotating part 4 are connected by a ball head, and the rotating part 4 can rotate in the circumferential direction relative to the ball head base 1. The cooperation of the limiting part 5 and the limiting wall 7 limits the degree of freedom of the rotating part 4. When the limiting part 5 and the limiting wall 7 are in close contact, the rotating part 4 cannot continue to rotate in this direction, thereby achieving the limiting effect, which is easy to position and makes the ball head screw not easy to come out.
[0037] Embodiment:
[0038] The embodiment provides a limiting ball head screw device, and the specific implementation steps are as follows:
[0039] Step 1: Selecting appropriate materials. The rotating part 4, the limiting part 5 and the connecting part 6 can be selected to be made of stainless steel material, which has good corrosion resistance and oxidation resistance. The ball head base 1 can be selected to be made of aluminum alloy material, which has light weight and good heat dissipation performance.
[0040] Step two: process the rotating part 4, the limiting part 5 and the connecting part 6. The rotating part 4 can be processed into a spherical or hemispherical shape with a diameter of 10mm. The limiting part 5 can be processed into a cylindrical shape with a diameter of 5mm and a height of 2mm. The connecting part 6 can be processed into a bolt with a length of 10mm and a diameter of 5mm.
[0041] Step three: process the ball seat 1. The accommodating cavity 3 of the ball seat 1 can be processed into a cylindrical shape with a diameter of 15mm and a depth of 10mm. The opening of the accommodating cavity 3 is provided with a limiting wall 7, which can be processed into a circular ring with a thickness of 2mm and a diameter of 15mm.
[0042] Step four: assemble the ball screw device. The rotating part 4, the limiting part 5 and the connecting part 6 are sequentially loaded into the accommodating cavity 3 of the ball seat 1. Ensure that the rotating part 4 can rotate freely, the limiting part 5 has a gap 8 with the limiting wall 7, and the connecting part 6 can drive the gap 8 between the limiting part 5 and the limiting wall 7 to adjust.
[0043] Step five: adjust the gap 8 between the limiting part 5 and the limiting wall 7. By rotating the connecting part 6, the gap 8 between the limiting part 5 and the limiting wall 7 can be adjusted to 4°. At this time, the rotating part 4 cannot rotate at a certain angle in the accommodating cavity 3, and the limiting is completed.
[0044] Step six: test the ball screw device. Install the ball screw device in the light adjusting structure of the vehicle lamp to adjust the light height. During the adjustment process, it can be observed that the gap 8 between the limiting part 5 and the limiting wall 7 is adjusted, and when the gap 8 is 4°, the rotating part 4 cannot rotate, and the limiting is completed.
[0045] The above is the specific implementation steps of the embodiment, and through this method, the precise adjustment of the light height of the vehicle lamp can be realized, and the adjustment effect and safety are improved.
[0046] The above-described embodiments are only preferred schemes of the present application and do not limit the present application in any form. Other variants and modifications can be made without exceeding the technical solutions recited in the claims.
Claims
1. A check ball head screw, characterized by, The ball head seat is provided with a containing cavity, and the movable rod comprises a rotating part, a limiting part and a connecting part.
2. The check ball head screw according to claim 1, wherein, The limiting part is arranged between the rotating part and the connecting part, and the limiting part is provided with a taper surface.
3. The check ball head screw according to claim 2, wherein, The angle between the taper surface and the limiting wall is 4 degrees.
4. The check ball head screw according to claim 3, wherein, The length of the generatrix of the limiting wall is greater than the length of the generatrix of the taper surface.
5. The check ball head screw of claim 1, wherein, The limiting part is a limiting disc arranged on the connecting part, and the distance from each position of the outer edge of the limiting disc to the limiting wall is the same when the movable rod and the ball head seat are coaxial.
6. The check ball head screw of claim 1, wherein, The rotating part is a sphere or a hemisphere.
7. The check ball head screw of claim 1, wherein, The ball head seat is provided with a fixing hole at the end away from the opening of the containing cavity, and the fixing nail passes through the fixing hole.
8. The check ball head screw of claim 1, wherein, The connecting part is a bolt.