Human body infrared induction lens structure convenient to disassemble and assemble

Abstract

The utility model discloses a human body infrared induction lens structure convenient to disassemble and assemble, which comprises an installation shell and a lens body, the installation shell is provided with a front-back through installation hole, a limiting flange is arranged in the installation hole, the rear end of the lens body is provided with a limiting ring, and the limiting ring is connected with the installation hole. A limiting ring is arranged in the mounting hole, a locking groove is formed in the peripheral wall, facing the hole wall of the mounting hole, of the limiting ring, a butt-joint groove communicated with the locking groove is formed in the limiting ring, the rear side of the butt-joint groove is provided with an opening, and a locking convex rib which can be inserted into the butt-joint groove and can be screwed into the locking groove is arranged in the mounting hole; and the number of the locking convex ribs is consistent with that of the slots. When the lens body is damaged in the later period, the lens body can be detached by rotating the lens body, operation is convenient, the structure is simple, and use requirements are met.

Description

Technical Field

[0001] The utility model relates to a human body infrared induction lens structure which is convenient for disassembly and assembly. Background Technique

[0002] The prior art, such as the Chinese utility model patent document with the publication number of CN213930843U, discloses an LED lamp with an infrared induction control switch, which includes an upper shell and a lower shell. The upper shell and the lower shell are connected by screws. A placement cavity is formed between the upper shell and the lower shell. A PCB circuit board is installed in the placement cavity. An infrared sensor, a light sensor and a transformer are arranged on the PCB circuit board. Installation holes are formed in the upper end face of the upper shell corresponding to the positions of the infrared sensor and the light sensor. An infrared lens is arranged in the installation holes. A plug is arranged on the lower end face of the lower shell, and the plug is electrically connected to the PCB circuit board. A lamp cover is inserted into the right ends of the upper shell and the lower shell. An LED lamp board is arranged in the lamp cover, and the LED lamp board is electrically connected to the PCB circuit board.

[0003] Based on the above, in the prior art, an infrared sensor needs to be used in combination with a lens. The existing infrared lenses are generally installed in the installation holes of the housing and assembled by means of snap connection. Although snap connection can be assembled without tools and has high assembly efficiency during assembly. However, in later use, when the lens is damaged due to collision or other factors, the snap fasteners snapped in the installation holes are very difficult to disengage. Often, users need to break the whole lens and then separate the snap fasteners, and the disassembly is very difficult and needs to be further improved. Content of the Utility Model

[0004] 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 a human body infrared induction lens structure which is convenient for disassembly and assembly.

[0005] A human body infrared induction lens structure which is convenient for disassembly and assembly designed according to this purpose includes an installation housing and a lens body. A front-to-back through installation hole is arranged on the installation housing. A limiting flange is arranged in the installation hole. A limiting ring is arranged at the rear end of the lens body. A locking groove is arranged on the peripheral wall of the limiting ring facing the hole wall of the installation hole. A mating slot communicating with the locking groove is arranged on the limiting ring. The rear side of the mating slot is open. A locking rib that can be inserted into the mating slot and screwed into the locking groove is arranged in the installation hole.

[0006] The number of the locking ribs is the same as that of the mating slots.

[0007] Preferably, a connecting ring is arranged in the installation hole in front of the limiting flange. The lens body is inserted into the connecting ring from front to back. The locking ribs are arranged on the inner wall of the connecting ring.

[0008] Preferably, the connecting ring is fixedly arranged on the mounting shell by screws.

[0009] Preferably, the mounting shell is made of metal, and the connecting ring is made of plastic.

[0010] Compared with the prior art, in the present utility model, a limiting flange is arranged in the mounting hole, a limiting ring is arranged at the rear end of the lens body, a locking groove is arranged on the peripheral wall of the limiting ring facing the hole wall of the mounting hole, a mating slot communicating with the locking groove is arranged on the limiting ring, the rear side of the mating slot is open, and a locking rib that can be inserted into the mating slot and screwed into the locking groove is arranged in the mounting hole; when assembling the present utility model, the lens body is inserted into the mounting hole, and the rear end face of the limiting ring abuts against the front end face of the limiting flange for limiting. During this insertion process, the locking rib needs to correspond to the mating slot so that the locking rib is inserted into the mating slot. When the rear end face of the limiting ring abuts against the front end face of the limiting flange, at this time, rotating the lens body can make the locking rib located in the mating slot be screwed into the locking groove to lock the front and rear positions of the lens body. When disassembling subsequently, rotate the lens body to make the locking rib return to the mating slot, and then the lens body can be pulled out from the rear to the front. Description of the Drawings

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

[0012] Figure 2 is an exploded structural schematic diagram of the present utility model;

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

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

[0015] Figure 5 is Figure 4 an enlarged structural schematic diagram at B in

[0016] Figure 6 is a sectional structural schematic diagram two of the present utility model;

[0017] Figure 7 is Figure 6 an enlarged structural schematic diagram at C in Detailed Embodiments

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] See Figures 1-7, A human body infrared induction lens structure that is convenient for disassembly and assembly, including an installation housing 10 and a lens body 20. The installation housing 10 is provided with an installation hole 110 that penetrates through the front and back. A limiting flange 120 is provided in the installation hole 110. A limiting ring 210 is provided at the rear end of the lens body 20. A locking groove 220 is provided on the peripheral wall of the limiting ring 210 facing the hole wall of the installation hole 110. A mating slot 230 that communicates with the locking groove 220 is provided on the limiting ring 210. The rear side of the mating slot 230 is open. A locking rib 310 that can be inserted into the mating slot 230 and screwed into the locking groove 220 is provided in the installation hole 110;

[0020] The number of the locking ribs 310 is the same as the number of the mating slots 230.

[0021] Based on the above embodiments, when the present utility model is assembled, the lens body is inserted into the installation hole, and the rear end face of the limiting ring abuts against the front end face of the limiting flange for limiting. During this insertion process, it is necessary to make the locking rib correspond to the mating slot so that the locking rib can be inserted into the mating slot. When the rear end face of the limiting ring abuts against the front end face of the limiting flange, at this time, rotating the lens body can make the locking rib located in the mating slot be screwed into the locking groove to realize the front-back position locking of the lens body. During subsequent disassembly, the lens body is rotated to make the locking rib return to the mating slot, and then the lens body can be pulled out from the back to the front.

[0022] Further, four mating slots 230 are provided, and a locking groove 220 is provided between two mating slots 230.

[0023] See Figure 3 , A connecting ring 30 is provided in the installation hole 110 in front of the limiting flange 120. The lens body 20 is inserted into the connecting ring 30 from the front to the back, and the locking rib 310 is provided on the inner wall of the connecting ring 30.

[0024] Further, the connecting ring 30 is fixedly arranged on the installation housing 10 by a screw 40.

[0025] Further, the installation housing 10 is made of metal, and the connecting ring 30 is made of plastic.

[0026] The locking rib is arranged on the connecting ring 30 so that the connecting ring 30 can be injection-molded. The installation housing 10 is made by stamping a metal material.

[0027] See Figure 7, a limiting rib 200 that abuts against the infrared sensing element 50 is provided on the inner wall of the lens body 20.

[0028] 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 based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation on the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0029] The above shows and describes 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 principle 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 these changes and improvements all 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. A human infrared sensing lens structure that is easy to assemble and disassemble, comprising a mounting housing (10) and a lens body (20), characterized in that: The mounting shell (10) is provided with a mounting hole (110) extending from front to back, a limiting flange (120) is provided in the mounting hole (110), a limiting ring (210) is provided at the rear end of the lens body (20), a locking groove (220) is provided on the peripheral wall of the limiting ring (210) facing the hole wall of the mounting hole (110), a counter slot (230) communicating with the locking groove (220) is provided on the limiting ring (210), the rear side of the counter slot (230) is provided with an opening, and a locking rib (310) which can be inserted into the counter slot (230) and screwed into the locking groove (220) is provided in the mounting hole (110); The number of the locking ribs (310) is consistent with the number of the pair of slots (230).

2. The human infrared sensing lens structure that is easy to assemble and disassemble according to claim 1, characterized in that: A connecting ring (30) is arranged in the mounting hole (110) on the front side of the limiting flange (120), the lens body (20) is inserted into the connecting ring (30) from front to back, and the locking rib (310) is arranged on the inner wall of the connecting ring (30).

3. The human infrared sensing lens structure that is easy to assemble and disassemble according to claim 2, characterized in that: The connecting ring (30) is fixedly arranged on the mounting housing (10) by means of screws (40).

4. The human infrared sensing lens structure that is easy to assemble and disassemble according to claim 2 or 3, characterized in that: The installation shell (10) is made of metal, and the connecting ring (30) is made of plastic.

5. The human infrared sensing lens structure that is easy to assemble and disassemble according to claim 1, characterized in that: The inner wall of the lens body (20) is provided with a limiting convex rib (200) which abuts against the infrared sensing element (50).

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