An electric vehicle headlight and its ball joint support structure

Abstract

This utility model provides an electric vehicle headlight and its ball joint support structure. The ball joint support structure includes an adjusting screw, an adjusting ball joint, and a ball joint bracket. The end of the adjusting screw is connected to a ball head. An inner spherical surface is formed on the inner wall of the adjusting ball joint, and the ball head is snapped into the inner spherical surface. The ball joint bracket is snapped into the adjusting ball joint. An elastic groove is formed on the adjusting ball joint, and multiple elastic grooves are evenly distributed along the axis of the adjusting ball joint. The length direction of the elastic groove is set along its own axial direction. The elastic groove connects the outer wall and the inner wall of the adjusting ball joint. When the ball joint bracket is snapped into the outer wall of the adjusting ball joint, pressure is applied to the adjusting ball joint, reducing the width of the elastic groove, thereby achieving the purpose of maintaining high stability during long-term use.

Description

Technical Field

[0001] This utility model relates to vehicle lights, and more particularly to an electric vehicle light and its ball head support structure. Background Technology

[0002] Currently, Chinese utility model patent CN209295059U discloses a vehicle headlight adjustment structure and a vehicle headlight. The adjustment structure includes an adjustment screw, the threaded end of which is connected to the headlight body. The other end of the adjustment screw is connected to an adjustment ball head, which in turn is connected to a ball head bracket, on which a reflector is attached. Furthermore, the end of the adjustment screw has a spherical structure, and the adjustment ball head has an inner spherical structure; the two are in contact through the spherical surfaces when connected.

[0003] However, this design has significant drawbacks in long-term use.

[0004] Specifically, the snap-fit ​​connection between the ball head of the adjusting screw and the inner wall of the adjusting ball head relies primarily on initial friction and structural fit. With continuous vehicle vibration and frequent adjustment operations, the contact surfaces between the ball head and the adjusting ball head gradually wear down, increasing the clearance between them. This clearance causes loosening between the adjusting screw and the adjusting ball head, affecting the stability of the entire adjustment structure and ultimately reducing the accuracy of the headlight adjustment, potentially rendering it unusable.

[0005] In existing technologies, attempts have been made to mitigate this problem by increasing the initial tightness of the snap-fit ​​connection structure to reduce wear. However, these methods often have limited effectiveness: increasing the initial tightness may increase assembly difficulty and manufacturing costs. Therefore, existing designs lack stability in long-term use. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an electric vehicle headlight and its ball head support structure to improve long-term stability.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a ball head support structure, including an adjusting screw, an adjusting ball head, and a ball head bracket. The end of the adjusting screw is connected to a ball head. An inner spherical surface is formed on the inner wall of the adjusting ball head. The ball head is snapped into the inner spherical surface. The ball head bracket is snapped into the adjusting ball head. An elastic groove is formed on the adjusting ball head. Multiple elastic grooves are evenly distributed along the axis of the adjusting ball head. The length direction of the elastic groove is set along its own axial direction. The elastic groove connects the outer wall and the inner wall of the adjusting ball head. When the ball head bracket is snapped into the outer wall of the adjusting ball head, pressure is applied to the adjusting ball head, thereby reducing the width of the elastic groove.

[0008] To achieve the above technical solution, when the ball head bracket is snapped into the outer wall of the adjusting ball head, it applies radial pressure to the adjusting ball head. Under this pressure, the width of the elastic grooves evenly distributed along the axis of the adjusting ball head will decrease. The radial contraction of the adjusting ball head caused by the reduction in the width of the elastic grooves improves the tightness of the fit between the inner spherical surface of the adjusting ball head and the ball head of the adjusting screw, thereby significantly enhancing the friction and structural constraint between them. Through the adaptive deformation of the elastic grooves, the structure automatically tightens under external loads, thus continuously maintaining a tight fit between the ball head and the inner spherical surface. This effectively overcomes the inherent defects of existing technologies, such as increased clearance and decreased structural stability due to long-term operation.

[0009] In a preferred embodiment of this utility model, an anti-detachment post is fixedly connected to the adjusting ball head, the anti-detachment post corresponds to the elastic groove, an anti-detachment ring is connected to the outer wall of the adjusting ball head, the elastic groove connects the outer wall and the inner wall of the anti-detachment ring, a positioning hole is provided on the ball head bracket, a positioning ring is connected to the inner wall of the positioning hole, the positioning ring is placed between the anti-detachment ring and the anti-detachment post, and the end of the anti-detachment post is used to abut against the side wall of the positioning ring.

[0010] To achieve the above technical solution, when the positioning ring in the positioning hole on the ball joint bracket is placed between the anti-detachment ring and the anti-detachment post, the end of the anti-detachment post will abut against the side wall of the positioning ring. This synergistic effect effectively prevents the adjusting ball joint from accidentally detaching from the ball joint bracket when subjected to severe vibration or external impact, thereby greatly improving the reliability of the connection and the stability of the structure.

[0011] As a preferred embodiment of this utility model, the positioning ring has a first inclined surface on the side opposite to the anti-detachment ring, and the end of the anti-detachment post has a second inclined surface. The second inclined surface is used to abut against the first inclined surface, and the anti-detachment post tends to move closer to the elastic groove along the first inclined surface.

[0012] To achieve the above technical solution, when the second inclined surface abuts against the first inclined surface, the guiding and wedging effect between the inclined surfaces causes the anti-detachment post to move towards the center of the adjusting ball head. More importantly, it effectively limits the tendency of the anti-detachment post to flip or peel off to the outside of the adjusting ball head. This provides reliable radial support for the anti-detachment post, significantly improving the strength and durability of the connection between the anti-detachment post and the adjusting ball head, thereby completely avoiding the risk of breakage and peeling of the anti-detachment post under long-term use or extreme stress conditions.

[0013] As a preferred embodiment of this utility model, the anti-detachment ring is provided with a weight reduction groove, and a plurality of the weight reduction grooves are arranged along the axis of the anti-detachment ring, with the length direction of the weight reduction grooves being set along the axial direction of the adjusting ball head.

[0014] To achieve the above technical solution, the weight-reducing groove is designed to optimize the overall mass distribution of the anti-detachment ring, thus achieving structural lightweighting. By reducing material usage, not only are manufacturing costs lowered, but the inertial load on components is also reduced without sacrificing structural strength and functionality, which may help reduce the additional stress on the system under vibration.

[0015] As a preferred embodiment of this utility model, an elastic compensation piece is connected to the side of the anti-detachment ring facing the positioning ring. The elastic compensation piece is used to abut against the side of the positioning ring facing the anti-detachment ring, and the elastic compensation piece is arranged in a wave shape.

[0016] To achieve the above technical solution, the introduction of a wave-shaped elastic compensating plate creates a continuous elastic preload between the anti-slip ring and the positioning ring. Its key function is to effectively compensate for manufacturing tolerances, preventing the positioning ring from wobbling between the anti-slip ring and the anti-slip post due to insufficient thickness or clearance. By providing stable radial support, the elastic compensating plate ensures that the positioning ring is always tightly positioned in its preset location, thereby eliminating potential clearance and the risk of loosening.

[0017] In a preferred embodiment of this utility model, the arched portion of the elastic compensation piece corresponds to the weight reduction groove, and the concave portion of the elastic compensation piece is fixedly connected to the anti-detachment ring.

[0018] The above technical solution enables the elastic compensation plate to fully utilize the space formed by the weight reduction groove for elastic deformation, thereby maximizing its buffering and compensation capabilities while ensuring a firm connection with the anti-detachment ring.

[0019] As a preferred embodiment of this utility model, two anti-detachment columns are provided, and a reinforcing block is fixedly connected to the side of the adjusting ball head away from the adjusting screw. The two ends of the reinforcing block are respectively fixedly connected to the two anti-detachment columns.

[0020] To achieve the above technical solution, the reinforcement block connects the two anti-detachment columns into a whole, effectively dispersing the local stress that a single anti-detachment column may bear, thereby fundamentally eliminating the risk of the anti-detachment column breaking or peeling off from the adjusting ball head. Even under extreme working conditions such as long-term high-intensity vibration or frequent adjustment, the integrity and reliability of the structure can be maintained.

[0021] This utility model also provides an electric vehicle headlight, including a ball head support structure, a headlight body, a headlight bracket, and a protective cover. The headlight body is fixed to the ball head support, and the end of the adjusting screw away from the ball head is threaded to the headlight bracket. The protective cover is fixed to the headlight bracket and positions the headlight body between the headlight bracket and the protective cover. An adjusting bolt is rotatably connected to the headlight bracket, and the adjustment bolt rotates to cause the ball head support to rotate along the center of the ball head through a conduction structure.

[0022] To achieve the above technical solution, the headlight body is securely fixed to the ball joint bracket, while the end of the adjusting screw furthest from the ball joint is threaded to the headlight housing. The entire headlight body is encased in a protective cover, ensuring it is positioned between the headlight housing and the protective cover, forming a complete protective structure. During adjustment, the user rotates the adjusting bolt connected to the headlight housing, moving the headlight body to achieve pitch adjustment.

[0023] As a preferred embodiment of this utility model, the conductive structure includes a fixing hole, a fixing ring, and a connector. The fixing hole is opened on the ball head bracket, the fixing ring is fixedly connected to the inner wall of the fixing hole, the connector is snapped onto the fixing ring, the connector has a first V-shaped surface and a second V-shaped surface that are arranged opposite to each other, the fixing ring is placed between the first V-shaped surface and the second V-shaped surface, and the adjusting bolt is threadedly connected to the connector.

[0024] To achieve the above technical solution, when the adjusting bolt is threadedly connected to the connector and rotates, the threaded force is transmitted to the fixed ring through the connector. This causes the fixed ring, along with its fixedly connected ball head bracket, to rotate along the center of the ball head, thereby driving the headlight body to achieve pitch adjustment. The ingenious fit between the first V-shaped surface and the second V-shaped surface not only ensures the effective transmission and conversion of force when the adjusting bolt rotates, but also provides stable radial and axial constraints. This effectively avoids gaps and wobbling during the adjustment process, ensuring the smoothness and accuracy of the adjustment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of Example 1; Figure 2 This is a schematic diagram of the exploded structure of Example 1; Figure 3 To illustrate the structure of the adjusting ball head; Figure 4 To illustrate the structural diagram of the weight reduction groove; Figure 5 This is a schematic diagram of the structure of Example 2; Figure 6 To illustrate the structural diagram of the light fixture; Figure 7 This is a schematic diagram of the exploded structure of Example 2; Figure 8 This is a schematic diagram illustrating the internal structure of Example 2; Figure 9 To illustrate the structure of the adjusting bolt; Figure 10 This is a schematic diagram illustrating the structure of the connector.

[0026] Reference numerals: 1. Adjusting screw; 2. Adjusting ball head; 3. Ball head bracket; 4. Ball head; 5. Cross groove; 6. Inner spherical surface; 7. Elastic groove; 8. Anti-detachment post; 9. Reinforcing block; 10. Anti-detachment ring; 11. Positioning hole; 12. Positioning ring; 13. First inclined surface; 14. Second inclined surface; 15. Weight reduction groove; 16. Elastic compensation piece; 17. Arched part; 18. Recessed part; 19. Headlight body; 20. Headlight bracket; 21. Protective cover; 22. Adjusting bolt; 23. Conductive structure; 24. Fixing hole; 25. Fixing ring; 26. Connector; 27. First V-shaped surface; 28. Second V-shaped surface. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0028] Example 1: A ball head support structure includes an adjusting screw 1, an adjusting ball head 2, and a ball head bracket 3. The end of the adjusting screw 1 is integrally connected to a ball head 4, which is spherical, and a cross groove 5 is formed at the end of the ball head 4 away from the adjusting screw 1.

[0029] An inner spherical surface 6 is formed on the inner wall of the adjusting ball head 2, and the ball head 4 is snapped into the inner spherical surface 6. The ball head bracket 3 is snapped into the adjusting ball head 2.

[0030] The adjusting ball head 2 has two elastic grooves 7 evenly distributed along the axis of the adjusting ball head 2. The length direction of the elastic grooves 7 is set along the axial direction of the adjusting ball head 2, and the elastic grooves 7 connect the outer wall and the inner wall of the adjusting ball head 2. When the ball head bracket 3 is snapped into the outer wall of the adjusting ball head 2, pressure is applied to the adjusting ball head 2, which reduces the width of the elastic grooves 7.

[0031] An anti-detachment post 8 is fixedly connected to the adjusting ball head 2. The anti-detachment post 8 corresponds to the elastic groove 7. A reinforcing block 9 is fixedly connected to the side of the adjusting ball head 2 away from the adjusting screw 1, and the two ends of the reinforcing block 9 are fixedly connected to the ends of the two anti-detachment posts 8 respectively.

[0032] An anti-detachment ring 10 is integrally connected to the outer wall of the adjusting ball head 2. The anti-detachment ring 10 is coaxially arranged with the adjusting ball head 2 and is located at the end of the adjusting ball head 2. The aforementioned elastic groove 7 connects the outer wall and the inner wall of the anti-detachment ring 10. A positioning hole 11 with a circular cross-section is provided on the ball head bracket 3. A positioning ring 12 is integrally connected to the inner wall of the positioning hole 11 and is coaxially arranged with the positioning hole 11. The positioning ring 12 is placed between the anti-detachment ring 10 and the anti-detachment post 8, and the end of the anti-detachment post 8 is used to abut against the side wall of the positioning ring 12.

[0033] A first inclined surface 13 is provided on the side of the positioning ring 12 opposite to the anti-detachment ring 10, and the first inclined surface 13 is coaxially arranged with the positioning ring 12. A second inclined surface 14 is provided at the end of the anti-detachment post 8, and the second inclined surface 14 is used to abut against the first inclined surface 13. The anti-detachment post 8 tends to move closer to the elastic groove 7 along the first inclined surface 13.

[0034] The anti-slip ring 10 has a weight reduction groove 15, and multiple weight reduction grooves 15 are arranged along the axis of the anti-slip ring 10. The length direction of the weight reduction groove 15 is set along the axis of the adjusting ball head 2.

[0035] An elastic compensation piece 16 is integrally connected to the side of the anti-detachment ring 10 facing the positioning ring 12. The elastic compensation piece 16 is used to abut against the side of the positioning ring 12 facing the anti-detachment ring 10. The elastic compensation piece 16 is arranged in a wave shape.

[0036] The elastic compensation piece 16 includes an integrally formed arched portion 17 and a recessed portion 18. Multiple arched portions 17 and multiple recessed portions 18 are arranged at intervals. The arched portions 17 of the elastic compensation piece 16 correspond to the weight reduction groove 15, and the recessed portions 18 of the elastic compensation piece 16 are fixedly connected to the anti-detachment ring 10.

[0037] Example 2: An electric vehicle headlight, including the ball joint support structure of Example 1, and further including a headlight body 19, a headlight bracket 20, and a protective cover 21. The headlight body 19 is fixed to the ball joint bracket 3, and the end of the adjusting screw 1 away from the ball joint head 4 is threaded to the headlight bracket 20. The protective cover 21 is fixed to the headlight bracket 20, positioning the headlight body 19 between the headlight bracket 20 and the protective cover 21.

[0038] An adjusting bolt 22 is rotatably connected to the lamp holder 20. The adjustment bolt 22 rotates and, through the conduction structure 23, causes the ball head bracket 3 to rotate along the center of the ball head 4. There are two adjusting screws 1 located on the upper part of the ball head bracket 3, and the adjusting bolt 22 is located on the lower part of the ball head bracket 3.

[0039] The conductive structure 23 includes a fixing hole 24, a fixing ring 25, and a connector 26. The fixing hole 24 is formed on the ball joint bracket 3, and the fixing ring 25 is fixedly connected to the inner wall of the fixing hole 24. The fixing hole 24 has a square cross-section. The connector 26 is snap-fitted onto the fixing ring 25, and has a first V-shaped surface 27 and a second V-shaped surface 28 that are oppositely arranged. The fixing ring 25 is positioned between the first V-shaped surface 27 and the second V-shaped surface 28. An adjusting bolt 22 is threadedly connected to the connector 26.

[0040] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A ball head support seat structure, comprising an adjusting screw (1), an adjusting ball head (2) and a ball head support (3), an end of the adjusting screw (1) is connected with a ball head (4), an inner wall of the adjusting ball head (2) is provided with an inner spherical surface (6), the ball head (4) is snap connected in the inner spherical surface (6), and the ball head support (3) is snap connected with the adjusting ball head (2), characterized in that: The adjusting ball head (2) is provided with an elastic groove (7). Multiple elastic grooves (7) are evenly distributed along the axis of the adjusting ball head (2). The length direction of the elastic groove (7) is set along its own axial direction. The elastic groove (7) connects the outer wall and the inner wall of the adjusting ball head (2). When the ball head bracket (3) is snapped to the outer wall of the adjusting ball head (2), pressure is applied to the adjusting ball head (2), which reduces the width of the elastic groove (7). ​ 2. A ball joint support structure according to claim 1, wherein: An anti-detachment column (8) is fixedly connected to the adjusting ball head (2). The anti-detachment column (8) corresponds to the elastic groove (7). An anti-detachment ring (10) is connected to the outer wall of the adjusting ball head (2). The elastic groove (7) connects the outer wall and the inner wall of the anti-detachment ring (10). A positioning hole (11) is opened on the ball head bracket (3). A positioning ring (12) is connected to the inner wall of the positioning hole (11). The positioning ring (12) is placed between the anti-detachment ring (10) and the anti-detachment column (8). The end of the anti-detachment column (8) is used to abut against the side wall of the positioning ring (12).

3. A ball joint support structure according to claim 2, wherein: The positioning ring (12) has a first inclined surface (13) on the side opposite to the anti-detachment ring (10), and the end of the anti-detachment column (8) has a second inclined surface (14). The second inclined surface (14) is used to abut against the first inclined surface (13), and the anti-detachment column (8) tends to move closer to the elastic groove (7) along the first inclined surface (13).

4. A ball joint support socket structure according to claim 2, wherein: The anti-detachment ring (10) is provided with a weight reduction groove (15), and multiple weight reduction grooves (15) are arranged along the axis of the anti-detachment ring (10). The length direction of the weight reduction groove (15) is set along the axial direction of the adjusting ball head (2).

5. A ball joint support structure according to claim 4, wherein: An elastic compensation piece (16) is connected to the side of the anti-detachment ring (10) facing the positioning ring (12). The elastic compensation piece (16) is used to abut against the side of the positioning ring (12) facing the anti-detachment ring (10). The elastic compensation piece (16) is arranged in a wave shape.

6. A ball joint support socket structure according to claim 5, wherein: The arched portion (17) of the elastic compensation piece (16) corresponds to the weight reduction groove (15), and the recessed portion (18) of the elastic compensation piece (16) is fixedly connected to the anti-detachment ring (10).

7. A ball joint support socket structure according to claim 2, wherein: Two anti-detachment columns (8) are provided. A reinforcing block (9) is fixedly connected to the side of the adjusting ball head (2) away from the adjusting screw (1). The two ends of the reinforcing block (9) are fixedly connected to the two anti-detachment columns (8) respectively.

8. An electric car lamp comprising a ball joint support structure as claimed in claim 1, characterized in that: It also includes a headlight body (19), a headlight bracket (20), and a protective cover (21). The headlight body (19) is fixed on the ball head bracket (3). The end of the adjusting screw (1) away from the ball head (4) is threaded onto the headlight bracket (20). The protective cover (21) is fixed on the headlight bracket (20) and the headlight body (19) is located between the headlight bracket (20) and the protective cover (21). An adjusting bolt (22) is rotatably connected to the headlight bracket (20). The adjusting bolt (22) rotates and, through the conduction structure (23), causes the headlight bracket (3) to rotate along the center of the ball head (4).

9. The electric vehicle lamp of claim 8, wherein: The conductive structure (23) includes a fixing hole (24), a fixing ring (25), and a connector (26). The fixing hole (24) is opened on the ball head bracket (3). The fixing ring (25) is fixedly connected to the inner wall of the fixing hole (24). The connector (26) is snapped onto the fixing ring (25). The connector (26) has a first V-shaped surface (27) and a second V-shaped surface (28) that are arranged opposite to each other. The fixing ring (25) is placed between the first V-shaped surface (27) and the second V-shaped surface (28). The adjusting bolt (22) is threadedly connected to the connector (26).

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