Infrared laser lens structure convenient to assemble

Abstract

The utility model discloses an infrared laser lens structure convenient to assemble, which comprises a fixed shell and a lens body, a lens groove is arranged on the front wall surface of the fixed shell, the lens body is embedded in the lens groove, a positioning connecting part is arranged on the inner wall of the fixed shell on the periphery of the lens groove, and a limiting part is arranged on the periphery of the lens body. The limiting part is attached to the positioning connecting part, and the front wall surface of the limiting part is attached to the inner wall surface of the fixed shell; a pressing piece is attached to the rear side wall face of the lens body, and the pressing piece and the positioning connecting part are clamped and fixed. The peripheral limiting parts and the positioning connecting parts are attached for limiting so as to restrain the up-and-down and left-and-right positions of the lens body. Furthermore, a pressing piece is adopted for attaching and limiting, the lens body can be restrained from moving backwards, meanwhile, the front wall face of the limiting part is attached to the inner wall of the fixed shell, and the lens body can be restrained from moving forwards. Therefore, the lens body is completely fixed in the fixed shell. Assembly is convenient, damage is not prone to occurring, and stability is good.

Description

Technical Field

[0001] The utility model relates to an infrared laser lens structure which is convenient for assembly. Background Art

[0002] The existing infrared laser lenses are generally applied in infrared laser emitters or laser pair sensors. When the existing infrared laser lenses are installed, they are assembled and matched with the clamping grooves of the fixed shell through the clamping buckles on the infrared laser lenses. The existing infrared laser lenses and the clamping buckles are of an injection molding integral structure, which results in the clamping buckles being also plastic injection molded. The problem is that the clamping buckles are easy to break, resulting in the lenses being unable to be installed and used, and further improvement is needed. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an infrared laser lens structure which is convenient for assembly.

[0004] An infrared laser lens structure which is convenient for assembly designed according to this purpose includes a fixed shell and a lens body. A lens groove is arranged on the front wall surface of the fixed shell, the lens body is embedded in the lens groove, positioning connection parts are arranged on the inner wall of the fixed shell around the lens groove, limiting parts are arranged around the lens body, the limiting parts are attached to the positioning connection parts, and the front wall surface of the limiting parts is attached to the inner wall surface of the fixed shell;

[0005] A pressing part is attached to the rear side wall surface of the lens body, and the pressing part is clamped and fixed with the positioning connection part.

[0006] Preferably, a limiting clamping groove is arranged on the wall surface of the positioning connection part facing the lens body, and the pressing part is clamped and matched with the limiting clamping groove.

[0007] Preferably, the pressing part includes a square frame attached to the rear wall surface of the lens body, and holding elastic pieces are arranged around the square frame, and the holding elastic pieces are clamped and matched with the limiting clamping groove.

[0008] Preferably, the holding elastic piece includes an elastic piece body, and a positioning convex part is arranged on the elastic piece body, and the positioning convex part is embedded in the limiting clamping groove.

[0009] Preferably, the pressing part is made of metal.

[0010] Compared with the prior art, on the inner wall of the fixed housing around the lens groove, there is a positioning connection part, and around the lens body, there is a limiting part, and the limiting part fits with the positioning connection part; a pressing part is attached to the rear side wall surface of the lens body, and the pressing part is fixedly clamped with the positioning connection part. The limiting parts around fit with the positioning connection parts for limiting, so as to restrict the up-and-down and left-and-right positions of the lens body. Further, by using the pressing part for fitting and limiting, it can restrict the lens body from moving backward, and at the same time, the front wall surface of the limiting part fits with the inner wall of the fixed housing, which can restrict the lens body from moving forward. Thus, the lens body is completely fixed in the fixed housing. It is convenient to assemble, not easy to be damaged, and has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0012] Figure 2 is one of the sectional structural schematic diagrams of the present utility model;

[0013] Figure 3 is Figure 2 the enlarged structural schematic diagram at A in

[0014] Figure 4 is another sectional structural schematic diagram of the present utility model;

[0015] Figure 5 is the sectional exploded structural schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described below with reference to the drawings and embodiments.

[0017] Referring to Figures 1-5 , a convenient-to-assemble infrared laser lens structure includes a fixed housing 10 and a lens body 20. On the front wall surface of the fixed housing 10, there is a lens groove 110, the lens body 20 is embedded in the lens groove 110, on the inner wall of the fixed housing 10 around the lens groove 110, there is a positioning connection part 120, around the lens body 20, there is a limiting part 210, the limiting part 210 fits with the positioning connection part 120, and the front wall surface of the limiting part 210 fits with the inner wall surface of the fixed housing 10;

[0018] A pressing part 30 is attached to the rear side wall surface of the lens body 20, and the pressing part 30 is fixedly clamped with the positioning connection part 120.

[0019] Based on the above embodiments, during assembly, the lens body 20 is inserted into the lens groove 110 from the rear to the front, and the front wall surfaces of the limiting parts around are fitted and limited with the inner wall surface of the fixed housing 10. At the same time, the limiting parts are fitted and limited with the positioning and connecting parts to restrict the up-down and left-right positions of the lens body. Then, the pressing part is assembled from the rear to the front until the pressing part is in contact with the rear wall surface of the lens body 20 and the pressing part 30 is clamped and fixed with the positioning and connecting part 120.

[0020] During disassembly, by releasing the clamping and fixing of the pressing part 30 and the positioning and connecting part 120, the pressing part can be removed, and then the lens body 20 can be taken off.

[0021] See Figure 3 , a limiting card slot 130 is provided on the wall surface of the positioning and connecting part 120 facing the lens body 20, and the pressing part 30 is in clamping fit with the limiting card slot 130.

[0022] See Figure 3 , the pressing part 30 includes a square frame 310 that fits against the rear wall surface of the lens body 20. Holding elastic pieces 320 are provided around the square frame 310, and the holding elastic pieces 320 are in clamping fit with the limiting card slot 130. The function of the square frame 310 is that it can achieve pressing and fixing without affecting the light source radiating towards the lens body 10 from the rear.

[0023] See Figure 3 , the holding elastic piece 320 includes an elastic piece body 321, and a positioning convex part 322 is provided on the elastic piece body 321. The positioning convex part 322 is embedded in the limiting card slot 130.

[0024] Furthermore, both the limiting card slot 130 and the positioning convex part 322 are in an arc structure.

[0025] In the present utility model, the pressing part 30 is made of metal.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0027] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An infrared laser lens structure that is convenient for assembly, comprising a fixed housing (10) and a lens body (20). A lens groove (110) is provided on the front wall surface of the fixed housing (10), and the lens body (20) is embedded in the lens groove (110). It is characterized in that: On the inner wall of the fixed housing (10) around the lens groove (110), a positioning connection portion (120) is provided. Around the lens body (20), a limiting portion (210) is provided. The limiting portion (210) fits with the positioning connection portion (120), and the front wall surface of the limiting portion (210) fits with the inner wall surface of the fixed housing (10). A pressing member (30) is attached to the rear side wall surface of the lens body (20), and the pressing member (30) is fixedly connected to the positioning connection portion (120) by clamping.

2. The infrared laser lens structure that is convenient for assembly according to claim 1, characterized in that: On the wall surface of the positioning connection portion (120) facing the lens body (20), a limiting card slot (130) is provided, and the pressing member (30) is in clamping cooperation with the limiting card slot (130).

3. The infrared laser lens structure convenient for assembly according to claim 2, wherein: The pressing member (30) includes a square frame (310) that fits with the rear wall surface of the lens body (20). Around the square frame (310), holding elastic pieces (320) are provided, and the holding elastic pieces (320) are in clamping cooperation with the limiting card slot (130).

4. The infrared laser lens structure convenient for assembly according to claim 3, wherein: The holding elastic piece (320) includes an elastic piece body (321), and a positioning protrusion portion (322) is provided on the elastic piece body (321). The positioning protrusion portion (322) is embedded in the limiting card slot (130).

5. A conveniently assembled infrared laser lens structure according to claim 2 or 3, characterized in that: The pressing member (30) is made of metal.

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