Inductive switch with waterproof function

Abstract

The utility model discloses an inductive switch with a waterproof function, which comprises an insulating shell and a mounting plate detachably arranged at the top, a butt joint frame is integrally formed at the bottom of the mounting plate and inserted into the butt joint frame, a PIR infrared sensor is fixed in the middle of the mounting plate in a penetrating manner, and a threaded ring and two positioning rings are integrally formed at the top of the mounting plate. An extrusion ring is sleeved with the threaded ring in a threaded mode, a plurality of plug pin blocks movably penetrate through the extrusion ring, the middle of the extrusion ring is movably sleeved with a plastic cover, and a rubber ring is arranged between the positioning rings. The extrusion ring is screwed into the threaded ring through the threads, the extrusion ring presses the edge of the plastic cover on the rubber ring, so that the rubber ring is flattened between the edge of the plastic cover and the mounting plate, good sealing performance is achieved between the edge of the plastic cover and the mounting plate, the extrusion ring can be detached, the plastic cover can be detached, and the sealing effect is good. The maintenance and replacement of the PIR infrared sensor in the middle of the mounting plate are facilitated, and the use is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of induction switches, in particular to an induction switch with a waterproof function. Background Art

[0002] Infrared induction switch is a kind of induction switch, which controls the circuit by sensing the infrared heating element;

[0003] In the induction switch of the prior art, the sensor is covered by a plastic cover, and infrared rays pass through the plastic cover to enter the sensor. The plastic cover is bonded to the cover plate to isolate the inside of the plastic cover from the outside world and prevent water vapor from forming water mist on the inner wall of the plastic cover. However, the plastic cover and the cover plate are fixed and cannot be disassembled, which is inconvenient for repair and replacement of the sensor, causing many inconveniences during use. Therefore, it is necessary to provide an induction switch with a waterproof function. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the sensor in the prior art is covered by a plastic cover, infrared rays pass through the plastic cover and enter the sensor, the plastic cover is bonded to the cover plate, the inside of the plastic cover is isolated from the outside world, and water vapor is prevented from forming water mist on the inner wall of the plastic cover, but the plastic cover and the cover plate are fixed and cannot be disassembled, which is inconvenient for the maintenance and replacement of the sensor, causing many inconveniences during use, and thus a sensor switch with a waterproof function is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waterproof induction switch, comprising an insulating shell and a mounting plate detachably arranged on the top, the bottom of the mounting plate is integrally formed with a docking frame inserted into the docking frame, a PIR infrared sensor is fixed through the middle of the mounting plate, the top of the mounting plate is integrally formed with a threaded ring and two positioning rings, an extrusion ring is threadedly sleeved in the threaded ring, a plurality of pin blocks are movably penetrated in the extrusion ring, a plastic cover is movably sleeved in the middle of the extrusion ring, and rubber rings are arranged between the positioning rings.

[0006] Further preferably, a sealing ring is integrally formed outwardly on the edge of the plastic cover, a latch hole is provided on the top of the sealing ring, and the latch block is inserted into the latch hole of the sealing ring.

[0007] Further preferably, a magnet block is bonded to the top of the latch block, the latch block surrounds the periphery of the plastic cover, an arc-shaped groove is opened on the top of the rubber ring, and the rubber ring is tightly attached to the bottom of the plastic cover.

[0008] Further preferably, the extrusion ring is made of nickel alloy, and a flange is integrally formed inwardly at the top of the extrusion ring, and the flange abuts against the edge of the plastic cover.

[0009] Further preferably, the inner wall of the insulating shell is provided with a circuit board, a central processing unit is on the circuit board, and the circuit board and the PIR infrared sensor are electrically connected.

[0010] The utility model has the following beneficial effects: the extrusion ring is screwed into the threaded ring through the thread, the extrusion ring presses the edge of the plastic cover onto the rubber ring, so that the rubber ring is flattened between the edge of the plastic cover and the mounting plate, the edge of the plastic cover and the mounting plate have good sealing performance, the edge of the plastic cover and the mounting plate have good waterproof performance, and the extrusion ring can be disassembled, so that the plastic cover can be disassembled, which is convenient for the maintenance and replacement of the PIR infrared sensor in the middle of the mounting plate, and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a disassembly schematic diagram of the utility model as a whole;

[0013] Figure 3 It is a front view schematic diagram of the mounting plate of the utility model;

[0014] Figure 4 This is a schematic diagram of the back side of the mounting plate of the utility model;

[0015] Figure 5 It is a structural schematic diagram of the extrusion ring of the utility model.

[0016] In the figure: insulating shell 1, mounting plate 2, threaded ring 3, extrusion ring 4, latch block 5, magnet block 6, plastic cover 7, positioning ring 8, rubber ring 9, PIR infrared sensor 10, docking frame 11. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-5 A waterproof induction switch comprises an insulating shell 1 and a mounting plate 2 detachably arranged on the top, a docking frame 11 is integrally formed at the bottom of the mounting plate 2 and inserted into the docking frame 11, a PIR infrared sensor 10 is fixed through the middle of the mounting plate 2, a threaded ring 3 and two positioning rings 8 are integrally formed at the top of the mounting plate 2, an extrusion ring 4 is threadedly sleeved in the threaded ring 3, a plurality of latch blocks 5 are movably penetrated in the extrusion ring 4, a plastic cover 7 is movably sleeved in the middle of the extrusion ring 4, and a rubber ring 9 is arranged between the positioning rings 8.

[0019] Preferably, a sealing ring is integrally formed outwardly at the edge of the plastic cover 7, a latch hole is provided at the top of the sealing ring, the latch block 5 is inserted into the latch hole of the sealing ring, a magnet block 6 is bonded to the top of the latch block 5, and the latch block 5 surrounds the periphery of the plastic cover 7;

[0020] During specific implementation, the extrusion ring 4 rotates and moves downward in the threaded ring 3, and the extrusion ring 4 presses the edge of the plastic cover 7 onto the rubber ring 9, so that the rubber ring 9 is flattened between the edge of the plastic cover 7 and the mounting plate 2, and then the latch block 5 is inserted into the extrusion ring 4, and then the extrusion ring 4 is rotated to make the bottom of the latch block 5 dock with the latch hole on the plastic cover 7, and the magnet block 6 absorbs the extrusion ring 4, so that the latch block 5 is inserted into the latch hole of the plastic cover 7 to prevent the extrusion ring 4 from loosening in the threaded ring 3, ensuring the pressure of the edge of the plastic cover 7 on the rubber ring 9, thereby ensuring the sealing between the edge of the plastic cover 7 and the mounting plate 2.

[0021] Preferably, an arc-shaped groove is formed on the top of the rubber ring 9, and the rubber ring 9 is tightly attached to the bottom of the plastic cover 7;

[0022] During specific implementation, the rubber ring 9 is flattened between the edge of the plastic cover 7 and the mounting plate 2 , and good sealing is achieved between the edge of the plastic cover 7 and the mounting plate 2 .

[0023] Preferably, the extrusion ring 4 is made of nickel alloy, and a flange is integrally formed inwardly at the top of the extrusion ring 4, and the flange abuts against the edge of the plastic cover 7;

[0024] During specific implementation, the magnet block 6 absorbs the extrusion ring 4 so that the latch block 5 always passes through the extrusion ring 4 and is inserted into the latch hole of the plastic cover 7, thereby preventing the latch block 5 from falling off from the latch hole of the plastic cover 7.

[0025] Preferably, the inner wall of the insulating shell 1 is provided with a circuit board, a central processing unit and other suitable electronic components on the circuit board, and the circuit board is electrically connected to the PIR infrared sensor 10;

[0026] In specific implementation, the PIR infrared sensor 10 detects that the infrared signal radiated from the detection area is uniform. When an object with temperature enters the detection area, the object with temperature blocks the infrared rays, causing a small positive potential difference on both sides of the PIR infrared sensor 10. When the object with temperature leaves the detection area, the PIR infrared sensor 10 detects the pulse change and sends a signal to the central processor, and the central processor controls the circuit to be turned on or off.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waterproof induction switch, comprising an insulating shell (1) and a mounting plate (2) detachably arranged on the top, a docking frame (11) is integrally formed at the bottom of the mounting plate (2) and inserted into the docking frame (11), and a PIR infrared sensor (10) is fixedly passed through the middle of the mounting plate (2), characterized in that: The top of the mounting plate (2) is integrally formed with a threaded ring (3) and two positioning rings (8); an extrusion ring (4) is threadedly sleeved in the threaded ring (3); a plurality of latch blocks (5) are movably penetrated in the extrusion ring (4); a plastic cover (7) is movably sleeved in the middle of the extrusion ring (4); and a rubber ring (9) is arranged between the positioning rings (8).

2. The induction switch with waterproof function according to claim 1, characterized in that: A sealing ring is integrally formed outwardly on the edge of the plastic cover (7), a latch hole is provided on the top of the sealing ring, and the latch block (5) is inserted into the latch hole of the sealing ring.

3. The induction switch with waterproof function according to claim 1, characterized in that: A magnet block (6) is bonded to the top of the latch block (5), the latch block (5) surrounds the periphery of the plastic cover (7), an arc-shaped groove is formed on the top of the rubber ring (9), and the rubber ring (9) is tightly attached to the bottom of the plastic cover (7).

4. The waterproof induction switch according to claim 1, characterized in that: The extrusion ring (4) is made of nickel alloy, and a flange is integrally formed inwardly at the top of the extrusion ring (4), and the flange abuts against the edge of the plastic cover (7).

5. The waterproof induction switch according to claim 1, characterized in that: The inner wall of the insulating shell (1) is provided with a circuit board, on which a central processing unit is located, and the circuit board is electrically connected to the PIR infrared sensor (10).

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