CN219282571U - Self-closing valve warning assembly and self-closing valve thereof - Google Patents

Abstract

The utility model discloses a self-closing valve warning component and a self-closing valve thereof, comprising a lifting button, a valve body, a driven piece, a contact piece and a warning box; the driven piece is arranged on the lifting button; the contact piece is vertically arranged on the valve body; a switch component and a warning component are arranged in the warning box; the first switch is provided with a contact spring plate; the switch assembly further includes a current amplifier; the driven piece is arranged to enable circuit control operation to be carried out according to the movement of the lifting button, so that automatic control of the device is realized; by arranging the iron contact spring piece, when the electromagnet is electrified, the iron contact spring piece is magnetically attracted by the electromagnet, so that the warning piece can be powered off; when the electromagnet is powered off, the contact spring piece is desorbed, and the contact spring piece rebounds to be in contact with the second switch, so that the warning piece is communicated with the circuit, and an alarm is given; through setting up the current amplifier for can be with low current conversion to high current, make the electro-magnet possess sufficient magnetic force and adsorb the contact shell fragment.

Description

Self-closing valve warning assembly and self-closing valve thereof

Technical Field

The utility model relates to the technical field of gas safety self-closing valves, in particular to a self-closing valve warning assembly and a self-closing valve thereof.

Background

The self-closing valve is a device which is installed on the pipeline of the low-pressure fuel gas system, does not use electricity or other external power when the gas supply pressure of the pipeline is under-pressure or over-pressure, and can be automatically closed and needs to be manually opened. Along with the increasing importance of countries and individuals on gas safety, more families choose to additionally install a self-closing valve at the joint of the tail end of a pipeline and a rubber tube (or a corrugated tube) behind a gas meter;

patent number CN202220990417.7 discloses a gas shutoff detection warning device for a household pipeline gas free of power, and when a gas detected by a self-closing valve body 6 is abnormal, a self-closing valve core moves to shut off a gas source passage and drives a synchronous push rod 8 to trigger a micro switch 1 to be closed through a synchronous push rod 8, so that a warning function is realized;

however, when the self-closing valve is not considered to have overpressure, the lifting button on the self-closing valve can move upwards, so that the micro-switch cannot be triggered, and warning cannot be performed when the self-closing valve has overpressure; meanwhile, the warning device is used for triggering the switch to be electrified when abnormal gas such as leakage occurs, and the method is easy to cause electric spark and causes fire hazard.

Disclosure of Invention

The utility model aims to automatically give out a warning after a self-closing valve detects abnormal fuel gas, and provides a self-closing valve warning component and a self-closing valve thereof.

A self-closing valve warning component comprises a lifting button and a valve body;

the detection piece comprises a driven piece and a contact piece; the driven piece is arranged on the lifting button; the contact piece is vertically arranged on the valve body;

the end part of the driven piece is provided with a contact head;

the upper part of the contact piece is provided with a groove; a contact piece is arranged in the middle of the inner side wall of the groove; the contact head is in contact connection with the contact sheet;

the warning box is internally provided with a switch component and a warning component;

the contact head, the contact sheet, the warning component and the switch component are electrically connected.

Further, the switch assembly comprises an electromagnet, a first switch and a second switch; the first switch is provided with a contact spring plate; the first switch and the second switch are electrically connected with the warning component.

Further, the switch assembly further comprises a current amplifier; the current amplifier is electrically connected with the contact head, the contact sheet and the electromagnet.

Further, the warning component comprises a signal emitter and a buzzer; the signal transmitter and the buzzer are electrically connected with the switch component.

A self-closing valve is provided with the self-closing valve warning component.

The beneficial effects of the utility model are as follows:

1. by arranging the driven piece, circuit control operation can be performed according to the movement of the lifting button, when the gas pipeline has under-pressure, over-current and other conditions, the lifting button can be retracted or protruded, and the driven piece follows the lifting button to perform lifting operation, so that automatic control of the device is realized;

2. by arranging the iron contact spring piece, when the electromagnet is electrified, the iron contact spring piece is magnetically attracted by the electromagnet, so that the warning piece can be powered off; when the electromagnet is powered off, the contact spring piece is desorbed, and the contact spring piece rebounds to be in contact with the second switch, so that the warning piece is communicated with the circuit, and an alarm is given;

3. by arranging the current amplifier, the current which can pass through the contact head and the contact sheet is low, so that the circuit near the self-closing valve is ensured not to cause electric spark initiation danger; meanwhile, the current passing through the electromagnet is high in current voltage, so that the electromagnet has enough magnetic force to absorb the contact spring plate;

drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the detecting member;

FIG. 3 is a schematic diagram of a warning device;

in the figure, 1, a detection piece; 11. a follower; 111. a contact; 12. a contact; 121. a groove; 122. a contact piece; 2. a warning box; 21. a switch assembly; 211. an electromagnet; 212. a first switch; 212-1, a contact spring; 213. a second switch; 214. a transformer; 22. a warning member; 221. a signal transmitter; 222. a buzzer; 3. a lifting button; 4. and a valve body.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

Example 1

As shown in FIGS. 1 to 3

A self-closing valve warning component comprises a lifting button 3;

a detecting member 1, the detecting member 1 including a follower 11 and a contact 12;

the follower 11 is arranged on the lifting button 3; the contact 12 is vertically arranged on the self-closing valve housing; by arranging the driven piece 11, the circuit control operation can be performed according to the movement of the lifting button 3, when the gas pipeline has under-pressure, over-pressure, air leakage and other conditions, the lifting button 3 can be retracted or protruded, and the driven piece 11 follows the lifting button 3 to perform lifting operation, so that the automatic control of the device is realized;

the end of the follower 11 is provided with a contact 111; by providing the contact 111, better contact with the contact piece 122 is enabled;

a groove 121 is formed in the upper portion of the contact 12; by providing the recess 121, the contact piece 122 can be mounted while the contact piece 122 and the contact head 111 can be protected from being contaminated easily;

a contact piece 122 is arranged in the middle of the inner side wall of the groove 121; by providing the contact piece 122, better communication with the contact 111 is enabled;

the contact piece 122 is in contact connection with the contact head 111; preferably, the contact piece 122 and the contact 111 are provided as copper material; by setting this scheme, a circuit loop can be formed;

the warning box 2 is internally provided with a switch component 21 and a warning piece 22;

the contact 111, the contact piece 122, the warning member 22 and the switch assembly 21 are electrically connected.

The switch assembly 21 includes an electromagnet 211, a first switch 212, and a second switch 213;

by arranging the electromagnet 211, the contact spring piece 212-1 can be attracted by magnetic force when the power is on, so that the circuit of the warning piece 22 is disconnected; when the power is off, the magnetic force disappears, the contact spring piece 212-1 is desorbed, the line of the warning piece 22 is communicated, and an alarm is sent out;

the first switch 212 is provided with a contact spring 212-1; specifically, the contact spring 212-1 is made of iron; by arranging the iron contact spring piece 212-1, when the electromagnet 211 is electrified, the iron contact spring piece is magnetically attracted by the electromagnet 211, so that the warning piece 22 can be powered off; when the electromagnet 211 is powered off, the contact spring piece 212-1 is desorbed, and the contact spring piece 212-1 rebounds to be in contact with the second switch 213, so that the warning piece 22 is in circuit communication, and an alarm is given;

the first switch 212 and the second switch 213 are electrically connected to the warning member 22;

the switch assembly 21 further includes a current amplifier 214; the current amplifier 214 is electrically connected with the contact 111, the contact piece 122 and the electromagnet 211;

by providing the current amplifier 214 such that the current that can pass over the contact 111 and the contact pad 122 is low, it is ensured that the circuit near the self-closing valve does not cause a spark initiation hazard; meanwhile, the current passing through the electromagnet 211 is high in current voltage, so that the electromagnet 211 has enough magnetic force to absorb the contact spring piece 212-1;

the warning component 22 comprises a signal emitter 221 and a buzzer 222; the signal transmitter 221 and the buzzer 222 are electrically connected with the switch assembly 21; by arranging the signal transmitter 221 and the buzzer 222, when the electromagnet 211 is powered off to release the adsorption contact spring piece 212-1, the contact spring piece 212-1 is communicated with the second switch 213, the signal transmitter 221 sends a signal to a resident, and the buzzer 222 sends an alarm;

a self-closing valve is provided with the self-closing valve warning component.

The working mode of the device

The working principle of the device is that when the gas pipeline self-closing valve is normally communicated, the lifting button 3 is positioned at a normal position, so that the loop of the detection piece 1 is communicated, and the loop of the warning piece 22 is disconnected under the control of the electromagnet 211; when the gas pipeline self-closing valve is abnormal, the design point of the device is to disconnect a circuit loop in case of abnormality for safety consideration, and the electromagnet 211 loses magnetic force due to disconnection of the loop, the contact spring piece 212-1 rebounds, and the loop of the warning piece 22 is communicated to generate warning; meanwhile, in order to ensure safety, the warning box 2 is arranged at one end of the self-closing valve of the principle gas pipeline, so that fire can not be caused when the warning piece 22 is communicated in a loop;

when the gas self-closing valve works normally, the lifting button 3 is positioned at a normal position, and the contact head 111 on the driven piece 11 is contacted with the contact piece 122 on the contact piece 12, so that the contact piece 122 and the contact head 111 are in loop communication with the current amplifier 214; the current is increased through the current amplifier 214, and the electromagnet 211 generates magnetic force to absorb the contact spring piece 212-1, so that the loop of the warning piece 22 is disconnected, and the warning piece 22 does not work;

when the gas self-closing valve is under pressure, the lifting button 3 falls down, the driven piece 11 falls down together with the lifting button 3, and the contact head 111 on the driven piece 11 is separated from contact with the contact piece 122 on the contact piece 12, so that the contact piece 122 and the contact head 111 are disconnected from a current amplifier 214 loop; the current is weakened, the magnetic force generated by the electromagnet 211 is insufficient to absorb the contact spring piece 212-1, the contact spring piece 212-1 rebounds to be in contact with the second switch 213, so that the warning piece 22 is communicated in a loop, the signal reflector 221 transmits a signal to a resident, and meanwhile the buzzer 222 gives an alarm;

when the gas self-closing valve flows, the lifting button 3 falls down, the contact head 111 on the driven piece 11 is separated from contact with the contact piece 122 on the contact piece 12, and the working principle is consistent with the undervoltage working principle of the gas self-closing valve;

when the gas self-closing valve is in overpressure, the lifting button 3 is lifted, the contact head 111 on the driven piece 11 is separated from contact with the contact piece 122 on the contact piece 12, and the working principle is consistent with the gas self-closing valve under-pressure working principle.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (5)

1. A self-closing valve warning assembly, characterized by: comprises a lifting button (3) and a valve body (4);

a detection member (1), the detection member (1) comprising a follower (11) and a contact member (12);

the follower (11) is arranged on the lifting button (3); the contact piece (12) is vertically arranged on the valve body (4);

the end part of the driven piece (11) is provided with a contact head (111);

the upper part of the contact piece (12) is provided with a groove (121); a contact piece (122) is arranged in the middle of the inner side wall of the groove (121); the contact head (111) is in contact connection with the contact sheet (122);

the warning box (2), a switch component (21) and a warning piece (22) are arranged in the warning box (2);

the contact head (111), the contact sheet (122), the warning piece (22) and the switch assembly (21) are electrically connected.

2. The self-closing valve warning assembly of claim 1, wherein: the switch assembly (21) comprises an electromagnet (211), a first switch (212) and a second switch (213); the first switch (212) is provided with a contact spring piece (212-1); the first switch (212) and the second switch (213) are electrically connected with the warning element (22).

3. The self-closing valve warning assembly of claim 2, wherein: the switch assembly (21) further comprises a current amplifier (214); the current amplifier (214) is electrically connected with the contact head (111), the contact piece (122) and the electromagnet (211).

4. The self-closing valve warning assembly of claim 1, wherein: the warning piece (22) comprises a signal emitter (221) and a buzzer (222); the signal transmitter (221) and the buzzer (222) are electrically connected with the switch assembly (21).

5. A self-closing valve, characterized in that: a self-closing valve warning assembly having any one of claims 1 to 4.

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