Novel fixing structure and lamp

Abstract

The utility model relates to a novel fixing structure and a lamp, the lamp is provided with the novel fixing structure, the novel fixing structure comprises an elastic sheet-shaped reed and a gasket, the center of the sheet-shaped reed forms a conical part, and the center of the conical part is provided with an inner tooth-shaped through groove penetrating through the wall thickness of the conical part. The fixing device has the advantages of simplicity in operation, low cost, convenience in installation and the like, can avoid the undesirable phenomena of hole breaking, water leakage, thread slipping, thread breaking and the like caused by screw fixation, and when the fixing device is applied to a lamp, the sheet-shaped reed is sleeved on the fixing column, expands to clamp the fixing column, can only move in one direction and is clamped more and more tightly, and the gasket is compressed in the clamping process, so that the sealing effect is improved. According to the lamp, pretightening force can be generated among the lens, the substrate and the shell of the lamp, thermal expansion and cold contraction generated among the lens, the substrate and the shell can be relieved, heat on the substrate is fully guided into the shell to be dissipated, meanwhile, accurate light distribution of the lens is ensured, stress damage to the substrate and the lens caused by thermal expansion and cold contraction is relieved, and therefore the service life of the lamp is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a lamp and a novel fixing structure for the lamp. Background Art

[0002] During the design of lamps, to fix an aluminum substrate or a lens, generally screws are used for fixing. This kind of fixing requires machine-threaded screws or self-tapping screws. Machine-threaded screws need drilling and tapping processes, which are prone to causing thread stripping and punching through the shell, resulting in water leakage problems; when using self-tapping screws, due to mold wear, the aperture is likely to change, leading to screw thread stripping or breakage due to over-tightening, scrapping the shell. In addition, whether it is a machine-threaded screw or a self-tapping screw, it requires raised columns on the shell, which makes the appearance ugly and affects the appearance design. Content of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides a lamp with a simple structure, convenient installation, firm fixation, and beautiful appearance, as well as a novel fixing structure for the lamp.

[0004] The utility model is realized through the following technical solutions:

[0005] A novel fixing structure includes a sheet-like spring piece with a certain elasticity and a washer with a certain elasticity. The center of the sheet-like spring piece is arched upward after stamping to form a conical part. A toothed through groove is formed through the wall thickness at the center of the conical part. The washer is sleeved outside the sheet-like spring piece and can cover the outer edge of the sheet-like spring piece. A through hole communicating with the toothed through groove is formed at the center of the washer.

[0006] In a preferred embodiment of the utility model, to ensure the fixing effect, the sheet-like spring piece is a circular metal snap spring.

[0007] To facilitate subsequent stamping, the outer ends of the grooves of the toothed through groove are arc-shaped, and the connection between adjacent two grooves forms an arc-shaped tooth inclined upward.

[0008] The utility model also provides a lamp, which includes a shell, a substrate installed in the shell, and a lens installed on the substrate. The substrate and the lens are installed in the shell through a plurality of the above novel fixing structures.

[0009] To facilitate locking, a plurality of fixing columns capable of penetrating the substrate and the lens are provided in the shell. The novel fixing structure is sleeved outside the fixing column, and the arc-shaped teeth of the toothed through groove of the novel fixing structure are abutted against the outer wall of the fixing column.

[0010] To facilitate the installation of the novel fixing structure, a plurality of annular bosses for the novel fixing structure to be embedded are provided on the top surface of the lens.

[0011] The beneficial effects of the present utility model are as follows: The fixing structure of the present utility model has the advantages of simple operation, low cost, convenient installation, etc. It can avoid the bad phenomena such as hole leakage, slipping thread and broken thread caused by screw fixing. When applied to a lamp, the sheet spring has elasticity. The sheet spring is sleeved on the fixing column and expands to form barbs, which catch the fixing column. It can only move in one direction and gets tighter and tighter. During the tightening process, the elastic washer is compressed, so that the substrate is closely attached to the outer shell, and a pre-tightening force can be generated between the lens, the substrate and the outer shell, making the substrate adhere to the outer shell, the lens fit on the substrate, and they are fixed together. It can also relieve the thermal expansion and contraction generated among the three, achieve complete fitting, fully conduct the heat on the substrate to the outer shell for sufficient heat dissipation. At the same time, it can ensure the accurate light distribution of the lens and relieve the stress damage caused by thermal expansion and contraction to the substrate and the lens, thus guaranteeing the service life of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a perspective view of the novel fixing structure of the present utility model;

[0013] Figure 2 is a cross-sectional view of the novel fixing structure of the present utility model;

[0014] Figure 3 is a perspective view of the sheet spring of the present utility model;

[0015] Figure 4 is a top view of the sheet spring of the present utility model;

[0016] Figure 5 is a side view of the sheet spring of the present utility model;

[0017] Figure 6 is a cross-sectional view of the lamp of the present utility model;

[0018] Figure 7 is a schematic diagram of the installation of the novel fixing structure of the present utility model on the lamp. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following describes in detail the preferred embodiments of the present utility model with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined. The directional terms mentioned in the present utility model, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only references to the directions in the attached drawings. Therefore, the directional terms used are for explaining and understanding the present utility model, rather than for limiting the present utility model.

[0020] Embodiment 1

[0021] As Figure 1 、 Figure 2A novel fixing structure as shown includes a sheet-like spring piece 1 with certain elasticity and a washer 2 with certain elasticity. The washer 2 is sleeved outside the sheet-like spring piece 1 and can cover the outer edge of the sheet-like spring piece 1.

[0022] Specifically, in combination with Figures 3 - 5 as shown, the sheet-like spring piece 1 is a circular sheet-like metal snap ring. After stamping at the center of the sheet-like spring piece 1, it arches upward to form a conical part 101. A through inner-toothed groove 102 is opened at the center of the conical part 101 through its wall thickness. In this embodiment, the top view of the inner-toothed groove 102 is a cross-shaped structure. The four outer ends 104 of the inner-toothed groove 102 are arc-shaped, and an upwardly inclined arc-shaped tooth 103 is formed at the connection between adjacent two grooves. The four arc-shaped teeth 103 are inclined upward after stamping and have certain elasticity. This novel fixing structure is formed by one-time stamping, which is convenient for manufacturing.

[0023] Specifically, the washer 2 is a circular ring-shaped flexible structure, which has a ring-shaped embedding groove for the sheet-like spring piece 1 to be embedded. A through hole communicating with the inner-toothed groove 102 is opened at the center of the washer 2, and the diameter of the through hole is larger than the diameter of the circle where the inner side end faces of the arc-shaped teeth 103 are located.

[0024] Embodiment Two

[0025] As Figure 6 、 Figure 7 shown, this embodiment provides a lamp, which includes a housing 3, a substrate 4 installed in the housing 3, and a lens 5 installed on the substrate 4. The substrate 4 and the lens 5 are installed in the housing 3 through several such novel fixing structures.

[0026] Specifically, there are several fixing columns 301 in the housing 3 that can penetrate the substrate 4 and the lens 5. There are several annular bosses 501 on the top surface of the lens 5 that can accommodate the new fixing structure. The new fixing structure is integrally embedded in the annular boss 501 and sleeved outside the fixing column 301. The gasket 2 of the new fixing structure is in interference fit with the annular boss 501, and the four arc-shaped teeth 103 of the flaky spring 1 of the new fixing structure are abutted against the outer wall of the fixing column 301. Since the four arc-shaped teeth 103 are inclined upward, during installation, only need to install each new fixing structure in each annular boss 501, and punch downward on each new fixing structure through a punch, then the four arc-shaped teeth 103 of the flaky spring 1 will be stuck to the fixing column 301, and the whole flaky spring 1 will be pressed down, compressing the gasket 2, causing the gasket 2 to deform. The inner ring of the gasket 2 tightly holds the fixing column 301, and the outer ring of the gasket 2 is closely attached to the inner wall of the annular boss 501. After the external force of the punch is restored, the four arc-shaped teeth 103 of the flaky spring 1 being stuck to the fixing column 301 can prevent the gasket 2 from rebounding, and can generate a pre-tightening force between the lens 5, the substrate 4 and the housing 3, so that the substrate 4 is attached to the housing 3, the lens 5 is attached to the substrate 4, fixed together, and can relieve the thermal expansion and contraction generated among the three, achieve complete fitting, fully conduct the heat on the substrate 4 to the housing 3, fully dissipate heat, ensure the accurate light distribution of the lens 5 at the same time, and relieve the stress damage caused by thermal expansion and contraction to the substrate 4 and the lens 5, thereby ensuring the service life of the lamp.

[0027] It should be noted that the inner-toothed through groove in the present invention can also be designed into other shapes for replacement, such as three grooves, five grooves, etc., as long as its arc-shaped teeth are inclined upward.

[0028] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A novel fixing structure, characterized in that: It includes a sheet-shaped spring piece with a certain elasticity and a washer with a certain elasticity. The center of the sheet-shaped spring piece is arched upward after stamping to form a conical part. An inner toothed through groove penetrating its wall thickness is provided at the center of the conical part. The washer is sleeved outside the sheet-shaped spring piece and can cover the outer edge of the sheet-shaped spring piece. A through hole communicating with the inner toothed through groove is provided at the center of the washer.

2. The novel fixing structure according to claim 1, characterized in that: The sheet-shaped spring piece is a circular sheet-shaped metal snap ring.

3. The novel fixing structure according to claim 2, wherein: The outer ends of the grooves of the inner toothed through groove are arc-shaped, and an upwardly inclined arc-shaped tooth is formed at the connection between adjacent two grooves.

4. A lighting fixture, comprising a housing, a substrate mounted within the housing, and a lens mounted on the substrate, characterized in that: The substrate and the lens are installed in the housing through a number of novel fixing structures as described in any one of claims 1-3.

5. The luminaire according to claim 4, characterized in that: There are a number of fixing columns in the housing that can penetrate the substrate and the lens. The novel fixing structure is sleeved outside the fixing column, and the arc-shaped teeth of the inner toothed through groove of the novel fixing structure are abutted against the outer wall of the fixing column.

6. The luminaire according to claim 5, characterized in that: The top surface of the lens has a number of annular bosses that can be embedded with the novel fixing structure.

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