Lens mounting structure for human body infrared induction

Abstract

The utility model discloses a lens mounting structure for human body infrared induction, which comprises a mounting shell and a lens, a mounting hole is arranged on the mounting shell, the lens is provided with an annular connecting part which is movably inserted in the mounting hole, an annular limiting groove is arranged in the hole wall of the mounting hole, and the lens is arranged in the annular limiting groove. The circumferential wall of the annular connecting part is provided with a ball protruding part clamped in the annular limiting groove, and the annular connecting part is provided with a limiting convex edge attached to the front wall face of the installation shell. An inserting groove is formed in the side wall of the limiting convex edge and used for enabling a crowbar to be inserted into the inserting groove so as to prize the lens to enable the ball protruding part to be separated from the ball protruding part.

Description

Technical Field

[0001] The utility model relates to a lens installation structure for human body infrared sensing. Background Art

[0002] Prior art, such as Chinese utility model patent document, publication number CN213930843U, discloses an LED lamp with an infrared induction controlled switch, comprising an upper shell and a lower shell, the upper shell and the lower shell being connected by screws, a placement cavity being formed between the upper shell and the lower shell, a PCB circuit board being installed in the placement cavity, an infrared sensor, a light sensor and a transformer being arranged on the PCB circuit board, a mounting hole being provided on the upper end surface of the upper shell corresponding to the position of the infrared sensor and the light sensor, an infrared lens being arranged in the mounting hole, a plug being provided on the lower end surface of the lower shell, the plug being electrically connected to the PCB circuit board, a light cover being plugged into the right ends of the upper shell and the lower shell, an LED light board being arranged in the light cover, and the LED light board being electrically connected to the PCB circuit board.

[0003] Based on the above, in the prior art, infrared sensors need to be used with lenses. Existing infrared lenses are generally installed in the mounting holes of the housing and assembled by snap-fitting. Although snap-fitting installation can be assembled without tools and has high assembly efficiency, in the later stage of user use, when the lens is damaged due to bumps or other factors, the buckle snapped in the mounting hole is difficult to disengage, and the user is often required to smash the entire lens and then separate the buckle, which is very difficult to disassemble. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a lens installation structure for human infrared sensing.

[0005] A lens mounting structure for human infrared sensing designed for this purpose comprises a mounting shell and a lens, wherein the mounting shell is provided with a mounting hole, the lens is provided with an annular connecting portion movably inserted in the mounting hole, an annular limiting groove is provided in the hole wall of the mounting hole, a spherical protrusion is provided on the peripheral wall of the annular connecting portion and clamped in the annular limiting groove, and a limiting convex edge is provided on the annular connecting portion to fit with the front wall surface of the mounting shell;

[0006] A slot is provided on the side wall of the limiting convex edge, and the slot is used for inserting a pry bar into the slot to pry the lens so as to disengage the spherical protrusion from the spherical protrusion.

[0007] Preferably, the limiting convex edge is an annular structure, and a sealing ring is provided between the limiting convex edge and the front wall surface of the mounting shell.

[0008] Preferably, a rounded transition section is provided at the front side corner of the annular limiting groove.

[0009] Compared with the prior art, the utility model has an annular limiting groove in the hole wall of the mounting hole, a spherical protrusion that is clamped in the annular limiting groove is provided on the peripheral wall of the annular connecting portion, and a limiting convex edge that fits the front wall of the mounting shell is provided on the annular connecting portion; a slot is provided on the side wall of the limiting convex edge. The utility model can constrain the front and rear positions of the lens and the mounting shell through the cooperation of the limiting convex edge and the spherical protrusion to prevent the annular connecting portion of the lens from detaching from the mounting hole. At the same time, the slot provided in the utility model can be inserted into the slot with a pry bar to pry the lens to disengage the spherical protrusion from the spherical protrusion when the lens needs to be replaced at a later stage, so as to disassemble the lens and separate the lens from the mounting shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0011] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] See also Figure 1-Figure 3 A lens mounting structure for human infrared sensing includes a mounting shell 10 and a lens 20. The mounting shell 10 is provided with a mounting hole 100. The lens 20 is provided with an annular connecting portion 200 movably inserted into the mounting hole 100. An annular limiting groove 110 is provided in the hole wall of the mounting hole 100. A spherical protrusion 201 that is clamped in the annular limiting groove 110 is provided on the peripheral wall of the annular connecting portion 200. A limiting convex edge 210 that fits with the front wall of the mounting shell 10 is provided on the annular connecting portion 200; a slot 211 is provided on the side wall of the limiting convex edge 210.

[0015] The utility model can constrain the front and rear positions of the lens and the mounting housing through the cooperation of the limiting convex edge and the spherical protrusion to prevent the annular connecting portion of the lens from being separated from the mounting hole. At the same time, the slot provided in the utility model can be inserted into the slot with a pry bar to pry the lens to separate the spherical protrusion from the spherical protrusion when the lens needs to be replaced later, so as to disassemble the lens and separate the lens from the mounting housing.

[0016] The limiting convex edge 210 is an annular structure, and a sealing ring 30 is arranged between the limiting convex edge 210 and the front wall surface of the installation shell 10 .

[0017] See also Figure 3 The front corner of the annular limiting groove 110 is provided with a rounded transition section 202. The function of the rounded transition section 202 is to facilitate the spherical protrusion 201 to move forward and escape from the annular limiting groove 110, so as to facilitate the disassembly of the lens 20.

[0018] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0020] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A lens mounting structure for human infrared sensing, comprising a mounting housing (10) and a lens (20), wherein the mounting housing (10) is provided with a mounting hole (100), characterized in that: The lens (20) is provided with an annular connecting portion (200) movably inserted into the mounting hole (100); an annular limiting groove (110) is provided in the hole wall of the mounting hole (100); a spherical protrusion (201) is provided on the peripheral wall of the annular connecting portion (200) and is clamped in the annular limiting groove (110); and a limiting convex edge (210) is provided on the annular connecting portion (200) and is in contact with the front wall surface of the mounting shell (10); A slot (211) is provided on the side wall of the limiting convex edge (210), and the slot (211) is used to allow a pry bar to be inserted into the slot (211) to pry the lens (20) so that the spherical protrusion (201) is separated from the spherical protrusion (201).

2. The lens mounting structure for human infrared sensing according to claim 1, characterized in that: The limiting convex edge (210) is in an annular structure, and a sealing ring (30) is provided between the limiting convex edge (210) and the front wall surface of the installation shell (10).

3. A lens mounting structure for human infrared sensing according to claim 1 or 2, characterized in that: A rounded transition section (202) is provided at the front side corner of the annular limiting groove (110).

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