Connecting structure and lighting equipment

Abstract

The utility model discloses a connecting structure and lighting equipment, and belongs to the technical field of lamps, the cross section of a first mounting hole in a first mounting part is polygonal, a self-tapping screw can be tapped into the first mounting hole, and the projection of a thread top of the self-tapping screw on the cross section of the first mounting hole intersects at least three edges of the polygon. The degree of freedom of the self-tapping screw in the first mounting hole is limited, so that the self-tapping screw is stably connected with the first mounting part; the vertex of the polygon is located outside the projection of the crest of the self-tapping screw on the cross section of the first mounting hole, chippings, cut off when the self-tapping screw is tapped into the first mounting hole, of the hole wall of the first mounting hole can be stored in the corners of the polygon, tapping of the self-tapping screw is smoother, the chippings stored in the corners of the polygon can further reinforce the first mounting hole, and the service life of the first mounting hole is prolonged. The connection stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a connection structure and lighting equipment. Background Technology

[0002] Currently, some lamp housings use self-tapping screws to secure internal components. Pre-drilled holes in the housing are used to screw the screws into these holes for a secure connection. However, self-tapping screws are often difficult to drive into the holes smoothly, significantly reducing assembly efficiency and increasing labor and time costs. Even when the screws are successfully driven into the holes, stripping often occurs, leading to insecure internal components that are prone to loosening or even falling off during use. This severely impacts the performance and safety of the lamp, reducing product quality and user experience. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a connection structure and lighting device to solve the problem that self-tapping screws are difficult to drive into holes.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A connection structure includes a first mounting component and a self-tapping screw;

[0006] The first mounting component has a first mounting hole with a polygonal cross-section, and the self-tapping screw passes through the first mounting hole;

[0007] The projection of the self-tapping screw thread crest onto the cross-section of the first mounting hole intersects at least three sides of the polygon, and the vertices of the polygon are located outside the projection of the self-tapping screw thread crest onto the cross-section of the first mounting hole.

[0008] Preferably, the cross-section of the first mounting hole is triangular or quadrilateral.

[0009] Preferably, the self-tapping screw has a tapping tip, the first mounting hole is a blind hole, and there is a gap between the bottom of the first mounting hole and the tapping tip.

[0010] Preferably, it further includes a second mounting component that abuts against the first mounting component, the second mounting component having a second mounting hole, the inner diameter of the second mounting hole being greater than or equal to the outer diameter of the self-tapping screw;

[0011] The self-tapping screw passes through the second mounting hole.

[0012] Preferably, the first mounting component is provided with a sealing ring that abuts against the second mounting component, and the sealing ring is located between the first mounting component and the second mounting component;

[0013] The first mounting hole is located on the outside of the sealing ring.

[0014] Preferably, the second mounting component includes a body and a boss located on the edge of the body, wherein the thickness of the boss is greater than the thickness of the body;

[0015] The second mounting hole is formed on the boss.

[0016] Preferably, there are multiple bosses, and a first reinforcing rib located at the edge of the body is provided between two adjacent bosses.

[0017] Preferably, the body is provided with a second reinforcing rib, the middle part of the second reinforcing rib is arranged around the boss, and the two ends of the second reinforcing rib are connected to the boss.

[0018] Preferably, the first mounting component is a die-cast structure.

[0019] To solve the same technical problem, this utility model also provides a lighting device, including the connection structure described above.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] The first mounting hole on the first mounting component has a polygonal cross-section, allowing the self-tapping screw to penetrate it. The projection of the self-tapping screw's thread tip onto the cross-section of the first mounting hole intersects at least three sides of the polygon, restricting the self-tapping screw's freedom within the first mounting hole and ensuring a stable connection between the self-tapping screw and the first mounting component. The vertices of the polygon are located outside the projection of the self-tapping screw's thread tip onto the cross-section of the first mounting hole. When the self-tapping screw penetrates the first mounting hole, the debris removed from the hole wall can be stored at the corners of the polygon, making the penetration smoother. The debris stored at the corners of the polygon can also reinforce the first mounting hole and improve connection stability. Attached Figure Description

[0022] Figure 1 This is an exploded view of the connection structure of the utility model.

[0023] Figure 2 A schematic diagram of the first mounting component of the connection structure of the utility model;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4This is an assembly diagram of the first and second mounting components of the connection structure of the utility model.

[0026] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0027] In the figure: 10, first mounting component; 11, first mounting hole; 12, mounting groove; 20, second mounting component; 21, second mounting hole; 22, body; 221, boss; 222, first reinforcing rib; 223, second reinforcing rib; 224, optical lens; 30, self-tapping screw; 31, tapping tip; 40, sealing ring; 50, light-emitting element. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Example 1

[0032] Combination Figures 1 to 5 As shown, the connection structure of this utility model is schematically illustrated, including a first mounting component 10 and a self-tapping screw 30. The first mounting component 10 is a die-cast structure.

[0033] Combination Figure 1 and Figure 3The first mounting component 10 has a first mounting hole 11, the cross-section of which is polygonal, and a self-tapping screw 30 passes through the first mounting hole 11. The cross-section of the first mounting hole 11 is triangular or quadrilateral. In this embodiment, the cross-section of the first mounting hole 11 is rhomboid. The die-cast first mounting component 10 is easier to process into a first mounting hole 11 with a polygonal cross-section. The projection of the self-tapping screw 30's thread crest onto the cross-section of the first mounting hole 11 intersects at least three sides of the polygon. This structure restricts the degree of freedom of the self-tapping screw 30 within the first mounting hole 11, preventing abnormal slippage of the self-tapping screw 30 within the first mounting hole 11. The vertices of the polygon are located outside the projection of the self-tapping screw 30's thread crest onto the cross-section of the first mounting hole 11. The vertices (i.e., the corners of the polygon) form a receiving space, allowing debris removed from the hole wall of the first mounting hole 11 when the self-tapping screw 30 is driven into the polygon to be stored at the corners of the polygon. This makes the self-tapping screw 30 drive in more smoothly, and the debris stored at the corners of the polygon can also reinforce the first mounting hole 11, improving connection stability.

[0034] In this embodiment, the four corners of the first mounting hole 11, which has a rhomboid cross-section, can store chips. In other alternative embodiments, the cross-section of the first mounting hole 11 can also be trapezoidal, and the trapezoid has no inscribed circle. For example, the projection (circular projection) of the crest of the self-tapping screw 30 on the cross-section of the first mounting hole 11 intersects the base and two sides of the trapezoid, while the top edge of the trapezoid is outside the projection. Therefore, the U-shaped structure formed by the top edge and the two sides of the trapezoid can accommodate more cutting chips.

[0035] Specifically, such as Figure 5 The self-tapping screw 30 has a tapping tip 31, the first mounting hole 11 is a blind hole, and there is a gap between the bottom of the first mounting hole 11 and the tapping tip 31. The space within this gap can accommodate cutting chips.

[0036] The connection structure of this utility model also includes a second mounting component 20 that abuts against the first mounting component 10. The second mounting component 20 has a second mounting hole 21. The inner diameter of the second mounting hole 21 is greater than or equal to the outer diameter of the self-tapping screw 30. The self-tapping screw 30 passes through the second mounting hole 21 and the first mounting hole 11 in sequence, and the first mounting component 10 and the second mounting component 20 are connected by the self-tapping screw 30. In this case, the self-tapping screw 30 does not need to be driven into the second mounting hole 21, but passes directly through it.

[0037] like Figure 4 and Figure 5To improve the sealing between the first mounting component 10 and the second mounting component 20, a sealing ring 40 is provided on the first mounting component 10 to abut against the second mounting component 20. The sealing ring 40 is located between the first mounting component 10 and the second mounting component 20. Specifically, a mounting groove 12 is formed on the first mounting component 10, and part of the sealing ring 40 is embedded in the mounting groove 12. The first mounting hole 11 is located outside the sealing ring 40, while other electronic components mounted on the first mounting component 10 are located inside the sealing ring 40. The location of the first mounting hole 11 outside the sealing ring 40 can prevent debris from the self-tapping screw 30 from entering between the first mounting component 10 and the second mounting component 20.

[0038] Furthermore, the second mounting component 20 includes a body 22 and a boss 221 provided on the edge of the body 22, such as Figure 5 The thickness of the boss 221 is greater than the thickness of the body 22. The second mounting hole 21 is formed on the boss 221. The boss 221 improves the strength of the edge of the body 22 and prevents the second mounting hole 21 from tearing the body 22 under stress. There are multiple bosses 221, and each boss 221 has a second mounting hole 21. Correspondingly, there are also multiple first mounting holes 11 and self-tapping screws 30, with each self-tapping screw 30 corresponding to one first mounting hole 11 and one second mounting hole 21. A first reinforcing rib 222 is provided between two adjacent bosses 221 at the edge of the body 22. The first reinforcing rib 222, together with the boss 221, can improve the strength and rigidity of the edge of the body 22, especially the rigidity of the edge of the body 22, so that the sealing ring 40 can be pressed tightly at all parts of the edge of the body 22, thereby improving the sealing performance between the first connecting component and the second connecting component.

[0039] The body 22 is provided with a second reinforcing rib 223. The middle part of the second reinforcing rib 223 is arranged around the boss 221. The two ends of the second reinforcing rib 223 are connected to the boss 221. The second reinforcing rib 223 can improve the strength of the body 22 around the boss 221.

[0040] Example 2

[0041] This embodiment discloses a lighting device, including multiple light-emitting elements 50 and the connection structure described above. The light-emitting elements 50 are disposed on the first connecting component and are located inside the sealing ring 40. The body 22 of the second connecting component is made of transparent material and is provided with multiple optical lenses 224, each optical lens 224 corresponding to one light-emitting element 50.

[0042] In summary, the cross-section of the first mounting hole 11 on the first mounting component 10 is polygonal, allowing the self-tapping screw 30 to penetrate the first mounting hole 11. Furthermore, the projection of the self-tapping screw 30's thread tip onto the cross-section of the first mounting hole 11 intersects at least three sides of the polygon, restricting the self-tapping screw 30's freedom within the first mounting hole 11 and ensuring a stable connection between the self-tapping screw 30 and the first mounting component 10. The vertices of the polygon are located outside the projection of the self-tapping screw 30's thread tip onto the cross-section of the first mounting hole 11. This allows the debris removed from the hole wall of the first mounting hole 11 when the self-tapping screw 30 penetrates to be stored at the corners of the polygon, making penetration smoother. The debris stored at the corners of the polygon also reinforces the first mounting hole 11, improving connection stability.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A connection structure, characterized in that, Includes the first mounting component and self-tapping screws; The first mounting component has a first mounting hole with a polygonal cross-section, and the self-tapping screw passes through the first mounting hole; The projection of the self-tapping screw thread crest onto the cross-section of the first mounting hole intersects at least three sides of the polygon, and the vertices of the polygon are located outside the projection of the self-tapping screw thread crest onto the cross-section of the first mounting hole.

2. The connection structure according to claim 1, characterized in that, The cross-section of the first mounting hole is triangular or quadrilateral.

3. The connection structure according to claim 1, characterized in that, The self-tapping screw has a tapping tip, the first mounting hole is a blind hole, and there is a gap between the bottom of the first mounting hole and the tapping tip.

4. The connection structure according to claim 1, characterized in that, It also includes a second mounting component that abuts against the first mounting component, the second mounting component having a second mounting hole, the inner diameter of the second mounting hole being greater than or equal to the outer diameter of the self-tapping screw; The self-tapping screw passes through the second mounting hole.

5. The connection structure according to claim 4, characterized in that, The first mounting component is provided with a sealing ring that abuts against the second mounting component, and the sealing ring is located between the first mounting component and the second mounting component; The first mounting hole is located on the outside of the sealing ring.

6. The connection structure according to claim 4, characterized in that, The second mounting component includes a body and a boss located on the edge of the body, wherein the thickness of the boss is greater than the thickness of the body. The second mounting hole is formed on the boss.

7. The connection structure according to claim 6, characterized in that, The number of protrusions is multiple, and a first reinforcing rib located at the edge of the body is provided between two adjacent protrusions.

8. The connection structure according to claim 6, characterized in that, The main body is provided with a second reinforcing rib, the middle part of which surrounds the boss, and the two ends of the second reinforcing rib are connected to the boss.

9. The connection structure according to claim 1, characterized in that, The first mounting component is a die-cast structure.

10. A lighting device, characterized in that, Includes the connection structure as described in any one of claims 1 to 9.

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