CN210515558U

CN210515558U - Door opening inductor

Info

Publication number: CN210515558U
Application number: CN201922061764.2U
Authority: CN
Inventors: 杨建辉; 刘建平; 韩良波
Original assignee: Ruicheng Technology Heyuan Co ltd
Current assignee: Kerui Intelligent Technology (Heyuan) Co.,Ltd.
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-05-12
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to a door opening sensor, which comprises a rear shell and a front shell; the front shell is internally provided with a circuit board, a spring antenna, a plurality of groups of supporting columns and a plurality of groups of first buckles; the door opening sensor also comprises a reed switch and a magnet; the front shell is provided with an anti-loosening clamping jaw; the rear shell is provided with a guide sliding plate and a clamping block; the front shell is provided with a first sealing convex strip and a first sealing groove; the rear shell is provided with a second sealing groove and a second sealing convex strip, when the circuit board is installed, the circuit board is buckled on the front shell through the first buckle, and the support column provides support for the circuit board, so that the circuit board can be prevented from being bent and deformed; the front shell is further pushed along the guide sliding plate until the anti-loosening clamping claws and the clamping blocks are clamped together, so that the front shell and the rear shell are tightly clamped, and the loosening condition is avoided; simultaneously, through addding first sealed sand grip and the sealed sand grip of second, can play the guide effect to the slip of preceding shell, can make preceding shell and backshell more closely the lid close again, effectively isolated external moisture and dust.

Description

Door opening inductor

Technical Field

The utility model relates to an inductor technical field, more specifically say, relate to an inductor opens door.

Background

In life, in order to facilitate timely learning that a person enters a room, people often install an inductor with a reed switch and a spring antenna on a door, and install magnets on a wall body. When someone opens the door, the door is promoted and is close to magnet, and the tongue tube is triggered under the influence of magnet, makes the outside transmission signal of spring antenna, sends the suggestion sound after wireless receiving module receives the signal. The existing door opening sensor has the problem of untight cover, and is difficult to effectively isolate external moisture and dust when loosening easily occurs.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a sensor opens door is provided.

The utility model provides a technical scheme that its technical problem adopted is:

constructing a door opening sensor, which comprises a rear shell and a front shell which are tightly covered in a matched manner in a buckling manner; the front shell is internally provided with a circuit board, a spring antenna which is electrically connected with and controlled by the circuit board, a plurality of groups of supporting columns which are matched with and support the circuit board, and a plurality of groups of first buckles which are matched with and press the circuit board to the supporting columns; the door opening sensor also comprises a reed switch which is arranged on the circuit board and is electrically connected with the circuit board, and a magnet which drives two movable reeds on the reed switch to be closed; when the reed switch is closed, a signal is sent to the circuit board to control the spring antenna to emit electromagnetic waves outwards;

the two inner side surfaces of the front shell are provided with anti-loosening clamping jaws extending towards the inside of the front shell; the two inner side surfaces of the rear shell are respectively provided with a guide sliding plate corresponding to the anti-loosening clamping jaw and a clamping block fixed on the guide sliding plate corresponding to the anti-loosening clamping jaw; a first sealing convex strip and a first sealing groove are formed in the surface of one side, facing the rear shell, of the front shell; the backshell be provided with the sealed recess of second that first sealed sand grip corresponds, and with the sealed sand grip of second that first sealed sand grip corresponds.

Preferably, two ends of the front shell are respectively provided with a longitudinal second buckle and a transverse first clamping plate; the door opening sensor also comprises a first reinforcing sheet and a second reinforcing sheet, wherein two ends of the first reinforcing sheet are respectively fixed with the second buckle and the inner wall of the front shell;

a second clamping plate which is opposite to the second clamping buckle and extends transversely and a third clamping buckle which is opposite to the first clamping plate and extends longitudinally are respectively arranged at two ends of the rear shell; the first clamping plate and the second clamping plate are respectively provided with a first bayonet corresponding to the third buckle and a second bayonet corresponding to the second buckle; the door opening sensor further comprises a third reinforcing sheet and a fourth reinforcing sheet, wherein the two ends of the third reinforcing sheet are fixed to the third buckle and the inner wall of the rear shell respectively, and the two ends of the fourth reinforcing sheet are fixed to the second clamping plate and the inner wall of the rear shell respectively.

Preferably, a battery electrically connected with the circuit board and a battery mounting rack for mounting the battery are further arranged in the front shell; a plurality of positioning pieces are arranged on one side, facing the circuit board, of the battery mounting rack; the circuit board is provided with a plurality of positioning holes corresponding to the positioning sheets one to one.

Preferably, the battery mounting rack is provided with an elastic stop arm for preventing the battery from running out.

Preferably, battery mounting bracket one side is provided with the elasticity keeps off the arm, and the opposite side is provided with and supplies user's finger tip to stretch into and pick up the groove of dodging of battery.

The beneficial effects of the utility model reside in that: when the electromagnetic wave shielding door is opened, the door is pushed to enable the magnet and the reed switch to be close to each other, the reed switch is closed, and the circuit board controls the spring antenna to emit electromagnetic waves outwards; when the circuit board is installed, the circuit board is buckled on the front shell through the first buckle, and the support column provides support for the circuit board, so that the circuit board is prevented from bending and deforming; the front shell is further pushed along the guide sliding plate until the anti-loosening clamping claws and the clamping blocks are clamped together, so that the front shell and the rear shell are tightly clamped, and the loosening condition is avoided; simultaneously, through addding first sealed sand grip and the sealed sand grip of second, can play the guide effect to the slip of preceding shell, can make preceding shell and backshell more closely the lid close again, effectively isolated external moisture and dust.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:

fig. 1 is a schematic view of an overall structure of a door opening sensor according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of the door-opening sensor according to the preferred embodiment of the present invention after the rear case is hidden;

fig. 3 is an exploded view of a door opening sensor according to a preferred embodiment of the present invention;

fig. 4 is an exploded schematic view of a door opening sensor according to a preferred embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 to 4 show a door opening sensor according to a preferred embodiment of the present invention, which includes a rear case 10 and a front case 11 that are fastened by a snap fit; a circuit board 12, a spring antenna 13 electrically connected with and controlled by the circuit board 12, a plurality of groups of supporting columns 14 matched with and supporting the circuit board 12, and a plurality of groups of first buckles 15 matched with and pressing the circuit board 12 to the supporting columns 14 are arranged in the front shell 11; the door opening sensor also comprises a reed switch 16 which is arranged on the circuit board 12 and is electrically connected with the circuit board, and a magnet (not shown in the figure) which drives two movable reeds on the reed switch 16 to close; when the reed switch 16 is closed, a signal is sent to the circuit board 12 to control the spring antenna 13 to emit electromagnetic waves outwards;

two opposite inner side surfaces of the front shell 11 are provided with anti-loosening claws 17 extending towards the inside of the front shell 11; the two inner side surfaces of the rear shell 10 are respectively provided with a guide sliding plate 18 corresponding to the anti-loosening claws 17 and a clamping block 19 fixed on the guide sliding plate 18 and corresponding to the anti-loosening claws 17; a first sealing convex strip 110 and a first sealing groove 180 are arranged on the surface of one side of the front shell 11 facing the rear shell 10; the rear shell 10 is provided with a second sealing groove 181 corresponding to the first sealing convex strip 110 and a second sealing convex strip 111 corresponding to the first sealing groove 180, when in use, one of the rear shell 10 and the magnet is fixed on a door, the other one of the rear shell and the magnet is fixed on a wall surface or a ceiling, when someone opens the door, the door is pushed to enable the magnet and the reed switch 16 to be close to each other, the reed switch 16 is closed, and the circuit board 12 controls the spring antenna 13 to emit electromagnetic waves outwards; when the circuit board 12 is installed, the circuit board 12 is buckled on the front shell 11 through the first buckle 15, and the support column 14 provides support for the circuit board 12, so that the circuit board 12 is prevented from bending and deforming; the front shell 11 is further pushed along the guide sliding plate 18 until the anti-loosening clamping claws 17 and the clamping blocks 19 are clamped together, so that the front shell 11 and the rear shell 10 are tightly clamped, and the loosening condition is avoided; meanwhile, by additionally arranging the first sealing convex strips 110 and the second sealing convex strips 111, the sliding of the front shell 11 can be guided, the front shell 11 and the rear shell 10 can be more tightly covered, and external moisture and dust are effectively isolated.

As shown in fig. 2 to 4, two ends of the front shell 11 are respectively provided with a longitudinal second buckle 112 and a transverse first snap plate 113; the door opening sensor further comprises a first reinforcing sheet (not shown in the figure) with two ends respectively fixed with the second buckle 112 and the inner wall of the front shell 11, and a second reinforcing sheet 115 with two ends respectively fixed with the first clamping plate 113 and the inner wall of the front shell 11;

a second clamping plate 116 which is opposite to the second buckle 112 and extends transversely and a third buckle 117 which is opposite to the first clamping plate 113 and extends longitudinally are respectively arranged at two ends of the rear shell 10; the first clamping plate 113 and the second clamping plate 116 are respectively provided with a first bayonet 182 corresponding to the third buckle 117 and a second bayonet 183 corresponding to the second buckle 112; the inductor that opens the door still includes both ends respectively with third cardboard 117 and the fixed third enhancement piece 118 of backshell 10 inner wall to and both ends respectively with second cardboard 116 and the fixed fourth enhancement piece 119 of backshell 10 inner wall, through addding the enhancement piece, make buckle and cardboard have bigger intensity, can effectively avoid bending deformation, make buckle and bayonet socket can carry out normal block, remain stable, good block effect.

As shown in fig. 2 to 4, a battery 121 electrically connected to the circuit board 12 and a battery mounting bracket 122 for mounting the battery 121 are further provided in the front case 11; a plurality of positioning pieces 123 are arranged on one side of the battery mounting frame 122 facing the circuit board 12; the circuit board 12 is provided with a plurality of positioning holes 185 corresponding to the positioning pieces 123 one by one, so that the positioning work of the battery mounting rack 122 can be completed quickly, and the assembly efficiency can be improved; meanwhile, the battery mounting frame 122 can be prevented from moving by means of the tight fit of the positioning piece 123 and the circuit board 12.

As shown in fig. 2 to 4, the battery mounting bracket 122 is provided with an elastic arm 124 for preventing the battery 121 from moving out, so as to prevent the battery 121 from accidentally moving out of the battery mounting bracket 122, and ensure stable and continuous power supply to the circuit board 12.

As shown in fig. 2 to 4, one side of the battery mounting bracket 122 is provided with an elastic arm 124, and the other side is provided with an avoiding groove 186 for the finger tip of the user to stretch into and dig the battery 121, so that the battery 121 can be quickly taken out when the battery 121 needs to be replaced, which is time-saving and labor-saving.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. A door opening sensor comprises a rear shell and a front shell which are tightly covered in a buckling mode; the antenna is characterized in that a circuit board, a spring antenna which is electrically connected with the circuit board and controlled by the circuit board, a plurality of groups of supporting columns which are matched with the circuit board for supporting the circuit board, and a plurality of groups of first buckles which are matched with the circuit board for pressing the circuit board to the supporting columns are arranged in the front shell; the door opening sensor also comprises a reed switch which is arranged on the circuit board and is electrically connected with the circuit board, and a magnet which drives two movable reeds on the reed switch to be closed; when the reed switch is closed, a signal is sent to the circuit board to control the spring antenna to emit electromagnetic waves outwards;

2. The door opening sensor according to claim 1, wherein the two ends of the front shell are respectively provided with a longitudinal second buckle and a transverse first clamping plate; the door opening sensor also comprises a first reinforcing sheet and a second reinforcing sheet, wherein two ends of the first reinforcing sheet are respectively fixed with the second buckle and the inner wall of the front shell;

3. The door opening sensor according to claim 1, wherein a battery electrically connected to the circuit board and a battery mounting bracket for mounting the battery are further provided in the front case; a plurality of positioning pieces are arranged on one side, facing the circuit board, of the battery mounting rack; the circuit board is provided with a plurality of positioning holes corresponding to the positioning sheets one to one.

4. The door opening sensor according to claim 3, wherein the battery mounting bracket is provided with a resilient catch arm for preventing the battery from coming out.

5. The door opening sensor according to claim 4, wherein the battery mounting bracket is provided with the elastic blocking arm at one side and an avoiding groove for the finger end of the user to extend into and pick up the battery at the other side.