CN215378194U

CN215378194U - Fire alarm linkage electromagnetic valve distribution box

Info

Publication number: CN215378194U
Application number: CN202121521814.1U
Authority: CN
Inventors: 姚平; 何如; 严靓; 王鹏; 陈炳旭
Original assignee: Jiangsu Dahang Gaohua Electric Co Ltd
Current assignee: Jiangsu Dahang Gaohua Electric Co Ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-12-31
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a fire alarm linkage electromagnetic valve distribution box, which comprises a box body and a cover plate, wherein the inner cavity of the box body is divided into a wiring chamber and a switch chamber by a partition plate, the wiring chamber and the switch chamber are sealed and isolated, the front side of the switch chamber is provided with an opening, the cover plate is detachably buckled at the switch chamber, a gas detection sensor is embedded and installed on the cover plate, the signal output end of the gas detection sensor is electrically connected with a controller, the gas detection sensor is embedded and installed on the cover plate of the distribution box, and is used for detecting the indoor gas leakage condition, a heat dissipation gap is arranged between the cover plate and the box body, when the gas leakage is detected, a stud at four corners of the cover plate is driven by a driving motor on the cover plate to be gradually screwed into a screw hole, the cover plate is sealed and pressed on the box body to close the heat dissipation gap, so as to isolate external gas and prevent the external gas from entering the interior of the box body, to improve the safety of its use.

Description

Fire alarm linkage electromagnetic valve distribution box

Technical Field

The utility model relates to the field of gas detection, in particular to a fire alarm linkage electromagnetic valve distribution box.

Background

The distribution box is generally a low-voltage distribution box formed by assembling switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch.

The current embedded indoor distribution box can be provided with a vent hole for heat dissipation at a cover plate for ensuring certain heat dissipation capability in the use process, but when the embedded indoor distribution box is used in a gas-containing occasion, if gas leaks, the embedded indoor distribution box can enter the distribution box, and at the moment, if sparks are generated in the distribution box, great danger is possibly generated.

Therefore, how to solve the defects of the prior art is a subject of the present invention.

Disclosure of Invention

In order to solve the problems, the utility model discloses a fire alarm linkage electromagnetic valve distribution box.

In order to achieve the above purpose, the utility model provides the following technical scheme: a fire alarm linkage electromagnetic valve distribution box comprises a box body and a cover plate, wherein the inner cavity of the box body is divided into a wiring chamber and a switch chamber by a partition plate, the wiring chamber is hermetically isolated from the switch chamber, the front side of the switch chamber is provided with an opening, the cover plate is detachably buckled at the switch chamber, the cover plate is embedded with a gas detection sensor, the signal output end of the gas detection sensor is electrically connected with a controller, a circle of connecting frame is arranged on the box body along the periphery of the switch chamber, a plurality of vent holes are arranged at the upper end and the lower end of the connecting frame, the cover plate is clamped in the connecting frame and has two opposite positions with the opening edge of the switch chamber, in one position, a gap is left between the cover plate and the opening edge of the switch chamber, the vent hole is communicated with the gap, under another position, the cover plate is pressed against the opening of the switch chamber and is in sealing fit with the opening;

the edge four corners of apron all rotates and is connected with the double-screw bolt, the edge all around of switch chamber corresponds each double-screw bolt and all sets up rather than the screw of phase coordination, the one end screw in of double-screw bolt is in the screw, and its other end outwards runs through the apron and is connected with a driving motor looks transmission, driving motor and the signal output end electric connection of controller.

In the above scheme, a seal chamber is arranged in the cover plate, a carbon dioxide air layer is filled in the seal chamber, an electromagnetic valve communicated with the seal chamber is installed on the inner side of the cover plate, the outlet end of the electromagnetic valve is communicated with the inner cavity of the switch chamber, and the signal output end of the electromagnetic valve is electrically connected with the signal input end of the controller.

In the above scheme, the block terminal still includes a power-off solenoid valve, buzzer siren and intelligence switch, buzzer siren installs in the lateral surface of apron, power-off solenoid valve is used for installing the exit end at gas pipeline, intelligence switch mounting is in the power input end of block terminal, the signal output part of controller respectively with power-off solenoid valve, buzzer siren and intelligence switch electric connection.

In the above scheme, the protruding strip that is equipped with of inside wall of linking frame, the outward flange of apron is seted up with protruding strip looks sliding fit's spout, protruding strip slip card is gone into in the spout.

In the scheme, the periphery of the screw hole is provided with a conical guide hole, and the stud penetrates through the conical guide hole and is screwed into the screw hole.

Compared with the prior art, the utility model has the following advantages: according to the distribution box, the gas detection sensor is embedded and mounted on the cover plate and used for detecting indoor gas leakage conditions, the heat dissipation gap is formed between the cover plate and the box body, when gas leakage is detected, the studs at the four corners of the cover plate are driven by the driving motor on the cover plate to be gradually screwed into the screw holes, the cover plate is tightly pressed on the box body in a sealing mode, the heat dissipation gap is closed, external gas is isolated, the gas is prevented from entering the box body, and the use safety of the gas detection sensor is improved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the box body with the cover plate removed;

FIG. 3 is a cross-sectional view of FIG. 1;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

List of reference numerals: 100 box bodies, 101 wiring chambers, 102 switch chambers, 103 connecting frames, 104 screw holes, 131 ventilation holes, 141 conical guide holes, 200 cover plates, 201 studs, 202 electromagnetic valves, 203 driving motors, 204 buzzer alarms and 205 sealed cavities.

Detailed Description

The present invention will be further illustrated below with reference to specific embodiments, which are to be understood as merely illustrative and not limitative of the scope of the present invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): referring to fig. 1-4, a fire alarm linkage electromagnetic valve distribution box comprises a box body 100 and a cover plate 200, wherein the inner cavity of the box body 100 is divided into a wiring chamber 101 and a switch chamber 102 by a partition plate, and the periphery of the partition plate and the wiring position of an electric wire are sealed by glue pouring, so that the wiring chamber 101 and the switch chamber 102 are sealed and isolated;

the front side of the switch chamber 102 is provided with an opening, the cover plate 200 is detachably buckled at the switch chamber 102, a gas detection sensor is embedded and installed on the cover plate 200, the signal output end of the gas detection sensor is electrically connected with a controller, the gas detection sensor uses the existing BDC-YD-800 detection device, the controller is a PLC controller, and the connection method of the controller and the gas detection sensor is the existing method; when the gas leakage detection device works, the gas leakage condition outside is detected by the gas detection sensor;

a circle of connecting frame 103 is arranged on the box body 100 along the periphery of the switch chamber 102, a plurality of vent holes 131 are formed in the upper end and the lower end of the connecting frame 103, the cover plate 200 is clamped in the connecting frame 103 and has two opposite positions with the opening edge of the switch chamber 102, a gap is reserved between the cover plate 200 and the opening edge of the switch chamber 102 at one position, the vent holes 131 are communicated with the gap, and in this state, the inner cavity of the switch chamber 102 is communicated with the outside through the gap and the vent holes 131 for heat dissipation;

in another position, the cover plate 200 is pressed against and in sealing engagement with the opening of the switch chamber 102; sealing rubber strips are arranged around the opening edge of the switch chamber 102, and when the cover plate 200 is pressed against the sealing rubber strips of the switch chamber 102, sealing can be formed to isolate the entering of external air;

four corners of the edge of the cover plate 200 are rotatably connected with studs 201, screw holes 104 correspondingly matched with the studs 201 are formed in the peripheral edge of the switch chamber 102 corresponding to the studs, one end of each stud 201 is screwed into the screw hole 104, the other end of each stud 201 outwards penetrates through the cover plate 200 and is in transmission connection with a power output shaft of a driving motor 203 through a key slot, and the driving motor 203 is electrically connected with a signal output end of the controller;

under the working state, the gas detection sensor detects the external gas leakage condition and transmits signals to the controller, when the gas detection sensor detects that the gas in the external air leaks, the controller controls the driving motor 203 to start, the driving stud 201 is screwed in towards the screw hole 104, and the cover plate 200 is driven to be pressed against the opening of the switch chamber 102 and is in sealing fit with the opening, so that the external gas is isolated from entering the switch chamber.

In order to further improve the fire-proof performance in the switch chamber 102, a sealed cavity 205 is provided in the cover plate 200, the sealed cavity 205 is filled with a compressed carbon dioxide air layer, an electromagnetic valve 202 communicated with the sealed cavity 205 is installed on the inner side of the cover plate 200, an outlet end of the electromagnetic valve 202 is communicated with an inner cavity of the switch chamber 102, a signal output end of the electromagnetic valve 202 is electrically connected with a signal input end of a controller, the electromagnetic valve 202 can be started to open by the controller, and the carbon dioxide air layer filled in the sealed cavity 205 is released into the switch chamber 102 to isolate oxygen and reduce the possibility of combustion.

The distribution box further comprises a power-off electromagnetic valve, a buzzer alarm 204 and an intelligent switch, wherein the buzzer alarm 204 is installed on the outer side surface of the cover plate 200, the power-off electromagnetic valve is installed at the outlet end of a gas pipeline, the intelligent switch is installed at the power supply input end of the distribution box and used for disconnecting a main power supply, the existing ZJSB9-80Z type circuit breaker can be adopted, remote WIFI control can be achieved, and the signal output end of the controller is respectively electrically connected with the power-off electromagnetic valve, the buzzer alarm 204 and the intelligent switch; the power-off electromagnetic valve is automatically closed after power failure; when gas leakage is detected, the main power switch can be switched off through the intelligent switch, the gas pipeline is closed by the power-off electromagnetic valve under the condition that no electricity exists in a family, and the buzzer alarm 204 gives an alarm in a linkage mode.

The protruding strip that is equipped with of inside wall of linking frame 103, the outward flange of apron 200 offer with protruding strip looks sliding fit's spout, protruding strip slip card is gone into in the spout, forms the sliding pair, can play the slide guiding effect.

In order to conveniently and quickly align the stud 201 with the screw hole 104, a tapered guide hole 141 is formed in the outer periphery of the screw hole 104, the diameter of the tapered guide hole 141 is gradually increased from inside to outside, and the stud 201 passes through the tapered guide hole 141 and is screwed into the screw hole 104, so that a certain guiding effect can be achieved when the stud 201 is inserted into the screw hole 104.

The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. The utility model provides a fire alarm linkage solenoid valve block terminal, includes box (100) and apron (200), wiring room (101) and switch room (102) are separated into by a baffle to the inner chamber of box (100), sealed isolated between wiring room (101) and switch room (102), the front side of switch room (102) has an opening, apron (200) detachable lock is in switch room (102) department, the gas detection sensor is installed in the embedding on apron (200), the signal output part and the controller looks electric connection of gas detection sensor, its characterized in that: a circle of connecting frame (103) is arranged on the box body (100) along the periphery of the switch chamber (102), a plurality of vent holes (131) are formed in the upper end and the lower end of the connecting frame (103), the cover plate (200) is clamped in the connecting frame (103) and has two opposite positions with the opening edge of the switch chamber (102), a gap is reserved between the cover plate (200) and the opening edge of the switch chamber (102) at one position, the vent holes (131) are communicated with the gap, and the cover plate (200) is pressed against the opening of the switch chamber (102) and is in sealing fit with the opening at the other position;

the edge four corners of apron (200) all rotates and is connected with double-screw bolt (201), the edge all around of switch room (102) corresponds each double-screw bolt (201) and all sets up rather than relative phase complex screw (104), the one end screw in of double-screw bolt (201) is in screw (104), and its other end outwards runs through apron (200) and is connected with a driving motor (203) looks transmission, driving motor (203) and the signal output end electric connection of controller.

2. The fire alarm linkage electromagnetic valve distribution box of claim 1, wherein: have a seal chamber body (205) in apron (200), this seal chamber body (205) intussuseption is filled with the carbon dioxide air bed, and solenoid valve (202) that are linked together with seal chamber body (205) are installed to the inboard of apron (200), the exit end of solenoid valve (202) is linked together with the inner chamber of switch room (102), the signal output part of solenoid valve (202) and the signal input end electric connection of controller.

3. The fire alarm linkage electromagnetic valve distribution box of claim 1 or 2, wherein: the block terminal still includes a power-off solenoid valve, buzzer siren (204) and intelligence switch, install in the lateral surface of apron (200) buzzer siren (204), power-off solenoid valve is used for installing the exit end at gas pipeline, intelligence switch mounting is in the power input end of block terminal, the signal output part of controller respectively with power-off solenoid valve, buzzer siren (204) and intelligence switch electric connection.

4. The fire alarm linkage electromagnetic valve distribution box of claim 1, wherein: the protruding strip that is equipped with of inside wall of linking frame (103), the outward flange of apron (200) is seted up with protruding strip sliding fit's spout mutually, protruding strip sliding card is gone into in the spout.

5. The fire alarm linkage electromagnetic valve distribution box of claim 1, wherein: the periphery of the screw hole (104) is provided with a conical guide hole (141), and the stud (201) penetrates through the conical guide hole (141) and is screwed into the screw hole (104).