CN215806666U - Temperature sensing type gas emergency closing device - Google Patents
Temperature sensing type gas emergency closing device Download PDFInfo
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- CN215806666U CN215806666U CN202121100970.0U CN202121100970U CN215806666U CN 215806666 U CN215806666 U CN 215806666U CN 202121100970 U CN202121100970 U CN 202121100970U CN 215806666 U CN215806666 U CN 215806666U
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- 238000004146 energy storage Methods 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 87
- 239000002737 fuel gas Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
A temperature-sensing type gas emergency closing device belongs to the technical field of electric appliances. The battery pack is connected with a battery voltage control and low voltage alarm circuit, the battery voltage control and low voltage alarm circuit are respectively connected with a low voltage warning light emitting diode, a low voltage warning buzzer and a boosting and capacitive energy storage circuit, the boosting and capacitive energy storage circuit is respectively connected with a manual emergency closing pressing knob and a normally closed bimetallic strip temperature switch, the other end of the manual emergency closing pressing knob and the normally closed bimetallic strip temperature switch is connected with a self-locking gas electromagnetic valve, and the self-locking gas electromagnetic valve is connected with a gas pipe. The utility model adopts the bimetallic strip temperature switch for the first time, and realizes the emergency closing of the fuel gas in the case of fire by detecting the environmental temperature or the surface temperature of the fuel gas tank, so as to avoid secondary fire sources or larger disasters and losses and ensure the life safety of fire fighters and common people.
Description
Technical Field
The utility model relates to a temperature-sensing type gas emergency closing device, and belongs to the technical field of electric appliances.
Background
The existing gas closing devices are all used for solving the problem that gas leaks in normal use. These devices employ a gas detection sensor, and when an abnormal gas leakage is detected, a solenoid valve is driven to close, and a gas line is closed to cut off the gas (see fig. 6). The working principle is that the gas leakage is detected firstly, and then the gas is closed.
However, in practical application, a very large number of scenes occur, when a fire disaster occurs, if gas cannot be cut off in time (including canned gas and pipeline gas), the gas is often leaked due to high temperature caused by rising of ambient temperature, a secondary fire source is formed, secondary accidents such as explosion are caused, and the life safety of surrounding personnel and fire fighters is seriously threatened.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a temperature-sensing type gas emergency closing device.
A battery pack is connected with a battery voltage control and low-voltage alarm circuit, the battery voltage control and low-voltage alarm circuit is respectively connected with a low-voltage warning light-emitting diode, a low-voltage warning buzzer and a boosting and capacitor energy storage circuit, the boosting and capacitor energy storage circuit respectively stores energy capacitors, is connected with a manual emergency closing button (rotary) and a normally closed bimetallic strip temperature switch, the other end of the manual emergency closing button (rotary) and the normally closed bimetallic strip temperature switch is connected with a self-locking type gas electromagnetic valve, and the gas electromagnetic valve is connected with a gas pipe. One side of the shell is provided with a left gas interface, the other side of the shell is provided with a right gas interface, the bottom surface of the shell is provided with an ambient temperature detection hole, and the front surface of the shell is provided with a manual emergency closing button (screw) button, a battery low-voltage alarm indicator lamp, a locking release button and an external temperature switch interface.
A temperature sensing type gas emergency closing device comprises a shell, a battery assembly is connected with a battery voltage control and low voltage alarm circuit, the battery voltage control and low voltage alarm circuit are respectively connected with a low voltage warning light emitting diode, a low voltage warning buzzer and a boosting and capacitor energy storage circuit, the boosting and capacitor energy storage circuit is respectively connected with an energy storage capacitor, a manual emergency closing button (turn) and a normally-open type bimetallic strip temperature switch, the other end of the manual emergency closing button (turn) and the normally-open type bimetallic strip temperature switch is connected with a self-locking gas electromagnetic valve, the self-locking gas electromagnetic valve is connected with a gas pipe and a self-locking and manual recovery mechanism, and mechanical linkage is respectively connected with the manual emergency closing button (turn) and the self-locking gas electromagnetic valve.
The inner cavity of the tube seat of the self-locking and manual recovery mechanism is connected with the movable iron core group and the static iron core, the inner cavity of the movable iron core group is connected with the reset spring, the coil assembly is connected in the circumferential wall of the tube seat, the shell is connected with one end of the tube seat, the self-locking button is removed and connected with one end of the tube seat, the other end of the tube seat is connected with the valve body, the inner cavity of the valve body is connected with the valve push rod, the inner cavity of the tube seat is communicated with the inner cavity of the valve body, and the valve push rod is provided with a limiting groove.
One side of the shell is provided with a left gas interface, the other side of the shell is provided with a right gas interface, the bottom surface of the shell is provided with an ambient temperature detection hole, and the front surface of the shell is provided with a manual emergency closing button (screw) button, a battery low-voltage alarm indicator lamp, a locking release button and an external temperature switch interface.
A temperature sensing type gas emergency closing device adopts a bimetallic strip temperature switch (without adopting a digital mode to avoid accidental failure, see a figure 7 and a figure 8) to control the opening and closing of an electromagnetic gas valve, the bimetallic strip temperature switch can not act under normal environment, when the ambient temperature or the surface temperature of a gas tank exceeds the limit (50-80 degrees), the bimetallic strip temperature switch can automatically act (normally open type is automatic connection and normally closed type is automatic disconnection) when the temperature exceeds the limit, the electromagnetic valve is driven to be turned off through a circuit to cut off a gas passage, the gas leakage under the high-temperature environment is avoided, a secondary fire source is formed, and the disaster is prevented from further expanding while safety guarantee is provided for fire rescue.
The electromagnetic valve is powered by a battery and is divided into a normally open type and a normally closed type according to the characteristics of the electromagnetic valve.
When the temperature exceeds the limit value (50-80 deg.), the bimetal switch acts to turn on the circuit and the capacitor energy storing circuit supplies power to the solenoid valve to shut off the gas. While the automatic hold mechanism is active to ensure that the solenoid valve is continuously closed until manually opened, this design is to ensure that the solenoid valve is continuously closed without power being supplied when a hazard occurs (see figure 1), and in this design the capacitive storage circuit is to ensure that there is sufficient instantaneous power output to close the solenoid valve.
The normally closed electromagnetic valve is closed under the condition of no power supply, so that the fuel gas can normally pass through the normally closed electromagnetic valve, when the temperature exceeds a limit value (50-80 degrees), the bimetallic strip temperature switch acts to cut off a power supply circuit, and the electromagnetic valve is automatically closed when the power supply is lost to cut off the fuel gas. In the design, a self-locking mechanical structure is not required to be added. However, this design requires the battery to be drained during normal use (see fig. 2).
The utility model has the advantages that: in view of the fact that all current gas emergency closing devices are based on detection of gas leakage, fire fighters often need to deal with gas tanks or gas pipelines in an emergency on actual fire scenes, and secondary fire sources or explosion caused by gas leakage caused by high temperature are often caused when the gas tanks or the gas pipelines are not disposed in time, so that larger disasters and losses are caused. The utility model adopts the bimetallic strip temperature switch for the first time, and realizes the emergency closing of the fuel gas in the case of fire by detecting the environmental temperature or the surface temperature of the fuel gas tank, so as to avoid secondary fire sources or larger disasters and losses and ensure the life safety of fire fighters and common people.
The utility model adopts the bimetallic strip temperature switch, directly carries out on-off operation on the circuit by utilizing the physical characteristics of the bimetallic strip, avoids the reliability problem caused by adopting a temperature sensitive resistor or a thermocouple mode and adopting a comparison circuit or a digital circuit, and ensures that the device can cut off a gas channel in time when a disaster happens. The battery voltage detection circuit used in the design ensures that a user is timely reminded to replace the battery when the battery voltage is insufficient, and the device is ensured to be in a correct working state. In the normally open design, a self-locking mechanism is adopted to avoid dangerous factors caused by reopening of the electromagnetic valve due to the exhaustion of the electric quantity of the battery after the electromagnetic valve is closed. In the normal close type design, the characteristic that the normal close type electromagnetic valve is closed when power is off is fully utilized, and the condition that the electromagnetic valve is accidentally opened due to power failure after a disaster occurs can be avoided.
The normally open type design of the utility model can avoid the ineffective consumption of the battery and prolong the service life of the battery, and the normally closed type design focuses on reducing the cost of the device and reducing the additional self-locking mechanism of the electromagnetic valve.
Drawings
A more complete appreciation of the utility model and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein the accompanying drawings are included to provide a further understanding of the utility model and form a part of this specification, and wherein the illustrated embodiments of the utility model and the description thereof are intended to illustrate and not limit the utility model, as illustrated in the accompanying drawings, in which:
FIG. 1 is a schematic view of the present invention.
FIG. 2 is a schematic diagram of the present invention.
FIG. 3 is a front view of the present invention.
Fig. 4 is a rear view of the present invention.
FIG. 5 is a schematic view of the self-locking and manual recovery mechanism.
Fig. 6 is a schematic view of the conventional gas detecting and shutting-off device.
Fig. 7 is a schematic diagram of a normally closed bimetallic strip temperature switch.
Fig. 8 is a schematic diagram of a normally open bimetallic strip temperature switch.
In the figure: the device comprises a battery component 1, a low-voltage warning light-emitting diode 2, a low-voltage warning buzzer 3, an energy storage capacitor 4, a battery voltage control and low-voltage alarm circuit 5, a boosting and capacitor energy storage circuit 6, a manual emergency closing button (screwing) button 7, a mechanical linkage 8, a normally-open type bimetallic strip temperature switch 9, a normally-closed type bimetallic strip temperature switch 9.1, a gas pipe 10, a self-locking and manual recovery mechanism 11, a self-locking gas electromagnetic valve 12, a left gas interface 13, a right gas interface 15, an ambient temperature detection hole 14, a battery low-voltage alarm indicator lamp 16, a locking release button 17, a shell 18, a pipe seat 19, a coil component 20, a shell 21, a release self-locking button 22, a static iron core 23, a reset spring 24, a movable iron core group 25, a valve push rod 26 and an external temperature switch interface 27.
The utility model is further illustrated with reference to the following figures and examples.
Detailed Description
It will be apparent that those skilled in the art can make many modifications and variations based on the spirit of the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description, "plurality" means two or more unless specifically limited otherwise.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.
Example 1: as shown in fig. 2, 3, 4 and 7, a temperature sensing type gas emergency shutdown device comprises a battery assembly 1 connected with a battery voltage control and low voltage alarm circuit 5, the battery voltage control and low voltage alarm circuit 5 is respectively connected with a low voltage warning light emitting diode 2, a low voltage warning buzzer 3 and a boosting and capacitance energy storage circuit 6, the boosting and capacitance energy storage circuit 6 is respectively connected with an energy storage capacitor 4, a manual emergency shutdown button (turn) 7 and a normally closed bimetallic strip temperature switch 9.1, the other end of the manual emergency shutdown button (turn) 7 and the normally closed bimetallic strip temperature switch 9.1 is connected with a self-locking gas electromagnetic valve 12, and the self-locking gas electromagnetic valve 12 is connected with a gas pipe 10.
The inner cavity of a tube seat 19 of the self-locking and manual recovery mechanism 11 is connected with a movable iron core group 25 and a static iron core 23, the inner cavity of the movable iron core group 25 is connected with a return spring 24, a coil assembly 20 is connected in the circumferential wall of the tube seat 19, a shell 21 is connected with one end of the tube seat 19, a self-locking releasing button 22 is connected with one end of the tube seat 19, the other end of the tube seat 19 is connected with a valve body 28, the inner cavity of the valve body 28 is connected with a valve push rod 26, the inner cavity of the tube seat 19 is communicated with the inner cavity of the valve body 28, and a limiting groove is formed in the valve push rod 26.
One side of the shell 18 is a left gas interface 13, the other side of the shell 18 is a right gas interface 15, the bottom surface of the shell 18 is provided with an ambient temperature detection hole 14, and the front surface of the shell 18 is provided with a manual emergency closing button (turn-on) 7, a battery low-voltage alarm indicator lamp 16, a locking release button 17 and an external temperature switch interface 27.
Example 2: as shown in fig. 1, 3, 4, 5, 8, a temperature sensing type gas emergency shutdown device, a battery assembly 1 is connected with a battery voltage control and low voltage alarm circuit 5, the battery voltage control and low voltage alarm circuit 5 is respectively connected with a low voltage warning light emitting diode 2, a low voltage warning buzzer 3 and a boosting and capacitance energy storage circuit 6, the boosting and capacitance energy storage circuit 6 is respectively connected with an energy storage capacitor 4, a manual emergency shutdown button (turn) 7 and a normally open type bimetallic strip temperature switch 9, the manual emergency shutdown button (turn) 7 and the other end of the normally open type bimetallic strip temperature switch 9 are connected with a self-locking gas electromagnetic valve 12, the self-locking gas electromagnetic valve 12 is connected with a gas pipe 10 and a self-locking and manual recovery mechanism 11, and a mechanical linkage 8 is respectively connected with the manual emergency shutdown button (turn) 7 and the self-locking gas electromagnetic valve 12.
The inner cavity of a tube seat 19 of the self-locking and manual recovery mechanism 11 is connected with a movable iron core group 25 and a static iron core 23, the inner cavity of the movable iron core group 25 is connected with a return spring 24, a coil assembly 20 is connected in the circumferential wall of the tube seat 19, a shell 21 is connected with one end of the tube seat 19, a self-locking releasing button 22 is connected with one end of the tube seat 19, the other end of the tube seat 19 is connected with a valve body 28, the inner cavity of the valve body 28 is connected with a valve push rod 26, the inner cavity of the tube seat 19 is communicated with the inner cavity of the valve body 28, and a limiting groove is formed in the valve push rod 26.
One side of the shell 18 is a left gas interface 13, the other side of the shell 18 is a right gas interface 15, the bottom surface of the shell 18 is provided with an ambient temperature detection hole 14, and the front surface of the shell 18 is provided with a manual emergency closing button (turn-on) 7, a battery low-voltage alarm indicator lamp 16, a locking release button 17 and an external temperature switch interface 27.
Example 3: as shown in fig. 1, 2, 3, 4, 5, 7 and 8, the structure of the temperature-sensing type gas emergency closing device adopts embodiment 1 or 2, adopts a bimetallic strip temperature switch as a temperature detection and switch component, and avoids the reliability problem caused by adopting a digital design. The electromagnetic valve is divided into a normally open type design and a normally closed type design according to the forms of a circuit and the electromagnetic valve.
A normally open temperature-sensitive gas emergency shutdown device (see fig. 1), the device comprising:
(1) a battery pack: the battery pack supplies power to the device, and the power supply voltage is 1.5V-6V and is not equal (adjusted according to the voltage requirement of the electromagnetic valve).
(2) Battery voltage detection and low voltage alarm circuit: the circuit monitors the voltage of the battery pack, and when the voltage is lower than 20% -40% of the rated voltage, alarm information (flashing through a Light Emitting Diode (LED) or sounding through a buzzer) is sent out to inform a user of replacing the battery pack in time so as to ensure stable power supply.
(3) Boost and capacitive storage circuit: the circuit boosts the voltage of the battery pack to adapt to the voltage requirement of a high-power electromagnetic valve (12V-24V), and stores electric energy in an energy storage capacitor (1000-6000 uF) to ensure that enough electric quantity can enable the electromagnetic valve to act during emergency cut-off action.
(4) Manual emergency off push (turn) button: in an emergency, the user can manually start the circuit to close the electromagnetic valve (or directly mechanically close the electromagnetic valve) to cut off the gas channel.
(5) Normally open bimetallic strip temperature switch: (see fig. 8), the switch is open in normal circumstances when the temperature is below a preset limit (50 c-80 c). The normally open type electromagnetic valve is not electrified and keeps a normally open state, and gas can smoothly pass through a gas pipeline. When a fire occurs, the ambient temperature or the surface temperature of the gas tank rises, and when the temperature rises to exceed a preset limit value, the bimetallic strip temperature switch acts to close the circuit. The energy storage capacitor can instantly release enough electric energy to close the normally open electromagnetic valve, and meanwhile, the self-locking device arranged on the electromagnetic valve acts, so that the electromagnetic valve is closed and keeps a closed state, and a gas channel is cut off.
(6) Normally open type solenoid valve: normally open solenoid valves are used, i.e. when not energized, the solenoid valves are open so that during normal use, gas can pass smoothly through the gas conduit. When the circular telegram, the solenoid valve can be closed rapidly, and self-locking mechanism can lock the solenoid valve in the position of closing simultaneously, and the state normally opened resumes to artifical manual reset. This is designed to avoid the danger that the solenoid valve will not remain closed in an emergency situation because the battery is depleted.
(7) Self-locking and manual recovery mechanism (see fig. 5): the valve push rod is provided with a limit groove. When the electromagnetic valve is closed, the movable iron core group can be embedded into the limiting groove under the action of the spring to prevent the valve push rod from returning. When the electromagnetic valve is required to be opened again, the coil can be powered on or the movable iron core group can be manually moved away from the limiting groove, the valve push rod can normally return to a normally open position, and the valve is opened.
The advantage of the normally open design is that the battery is not consumed either during normal use or after an emergency shutdown, but only at the instant of charging the storage capacitor and the emergency shutdown, so that the battery pack can be used for a long time. But requires the addition of a separate solenoid valve self-locking mechanism.
Second, a normally closed temperature-sensitive gas emergency shut-off device (see fig. 2): the device comprises:
(1) a battery pack: the battery pack supplies power to the device, and the power supply voltage is 1.5V-6V and is not equal (adjusted according to the voltage requirement of the electromagnetic valve).
(2) Battery voltage detection and low voltage alarm circuit: the circuit monitors the voltage of the battery pack, and when the voltage is lower than 20% -40% of the rated voltage, alarm information (flashing through a Light Emitting Diode (LED) or sounding through a buzzer) is sent out to inform a user of replacing the battery pack in time so as to ensure stable power supply.
(3) Solenoid valve drive circuit: the electric energy is obtained from the battery pack and matched with the solenoid valve, and the solenoid valve is used for driving the normally closed solenoid valve to be opened.
(4) Manual emergency off push (turn) button: in emergency, the user can manually cut off the driving circuit, close the normally closed solenoid valve and cut off the gas channel.
(5) Normally closed bimetallic strip temperature switch: (see fig. 7), the switch is on in normal circumstances when the temperature is below a preset limit (50-80 ℃). The normally closed electromagnetic valve is electrified and keeps an open state, and gas can smoothly pass through the gas pipeline. When a fire occurs, the ambient temperature or the surface temperature of the gas tank rises, and when the temperature rises to exceed a preset limit value, the bimetallic strip temperature switch acts to disconnect the circuit. The normally closed electromagnetic valve is closed to cut off the gas channel. Because the normally closed solenoid valve can be kept closed without being powered by a battery, a solenoid valve self-locking mechanism does not need to be installed.
(6) Normally closed solenoid valve: the normally closed type electromagnetic valve is used, namely when the electromagnetic valve is not electrified, the electromagnetic valve is closed, so that the electromagnetic valve driving circuit keeps the electromagnetic valve in an open state during normal use, and gas can smoothly pass through a gas pipeline. When the environment temperature or the surface temperature of the gas tank is too high, the bimetallic strip temperature switch can be automatically switched off to cut off the circuit, and the normally closed electromagnetic valve can be rapidly closed under the condition of power failure until the circuit is recovered.
This embodiment uses a normally closed design, using a 6V battery pack (four No. 5 batteries) to supply power. A battery low-voltage alarm indicator lamp, a manual emergency off button and a lock release button (for re-connecting the solenoid valve driving circuit) are arranged on the front surface. The back then hugs closely bimetallic strip temperature switch in the inner shell bottom, surveys ambient temperature through a plurality of ambient temperature detecting holes, and in addition, this embodiment still provides an external interface, can paste in gas jar (or need direct detection object) surface by special double faced adhesive tape through the external closed bimetallic strip temperature switch of wire to survey gas jar surface temperature.
At the both ends of this embodiment, there is the gas interface respectively for insert the gas passageway.
The set temperatures in this example are: the environment temperature is more than or equal to 55 ℃ or the surface temperature of the gas tank is more than or equal to 50 ℃ and the gas tank enters a closed state.
As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the spirit and scope of the present invention. Therefore, such modifications are also all included in the scope of protection of the present invention.
Claims (5)
1. A temperature-sensing type gas emergency closing device comprises a shell and is characterized in that a battery assembly is connected with a battery voltage control and low-voltage alarm circuit, the battery voltage control and low-voltage alarm circuit is respectively connected with a low-voltage warning light-emitting diode, a low-voltage warning buzzer and a boosting and capacitor energy storage circuit, the boosting and capacitor energy storage circuit respectively stores energy capacitors, is connected with a manual emergency closing press knob and a normally-closed bimetallic strip temperature switch, the other end of the manual emergency closing press knob and the normally-closed bimetallic strip temperature switch is connected with a self-locking gas electromagnetic valve, and the gas electromagnetic valve is connected with a gas pipe.
2. The temperature-sensing gas emergency shutdown device of claim 1, wherein one side of the housing is a left gas port, the other side of the housing is a right gas port, the bottom surface of the housing is provided with an ambient temperature detection hole, and the front surface of the housing is provided with a manual emergency shutdown button, a battery low-voltage alarm indicator, a lock release button and an external temperature switch interface.
3. A temperature-sensing type gas emergency closing device comprises a shell and is characterized in that a battery assembly is connected with a battery voltage control and low-voltage alarm circuit, the battery voltage control and low-voltage alarm circuit is respectively connected with a low-voltage warning light-emitting diode, a low-voltage warning buzzer and a boosting and capacitor energy storage circuit, the boosting and capacitor energy storage circuit is respectively connected with an energy storage capacitor, a manual emergency closing press knob and a normally-open type bimetallic strip temperature switch, the other end of the manual emergency closing press knob and the normally-open type bimetallic strip temperature switch is connected with a self-locking gas electromagnetic valve, the self-locking gas electromagnetic valve is connected with a gas pipe and a self-locking and manual recovery mechanism, and a mechanical linkage is respectively connected with the manual emergency closing press knob and the self-locking gas electromagnetic valve.
4. The temperature-sensing gas emergency closing device according to claim 3, wherein the inner cavity of the tube seat of the self-locking and manual recovery mechanism is connected with the movable iron core set and the static iron core, the inner cavity of the movable iron core set is connected with the return spring, the coil assembly is connected in the circumferential wall of the tube seat, the shell is connected with one end of the tube seat, the release self-locking button is connected with one end of the tube seat, the other end of the tube seat is connected with the valve body, the inner cavity of the valve body is connected with the valve push rod, the inner cavity of the tube seat is communicated with the inner cavity of the valve body, and the valve push rod is provided with a limiting groove.
5. The temperature-sensing gas emergency shutdown device of claim 3, wherein one side of the housing is a left gas port, the other side of the housing is a right gas port, the bottom surface of the housing is provided with an ambient temperature detection hole, and the front surface of the housing is provided with a manual emergency shutdown button, a battery low-voltage alarm indicator, a lock release button and an external temperature switch interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121100970.0U CN215806666U (en) | 2021-05-21 | 2021-05-21 | Temperature sensing type gas emergency closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121100970.0U CN215806666U (en) | 2021-05-21 | 2021-05-21 | Temperature sensing type gas emergency closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215806666U true CN215806666U (en) | 2022-02-11 |
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ID=80173367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121100970.0U Expired - Fee Related CN215806666U (en) | 2021-05-21 | 2021-05-21 | Temperature sensing type gas emergency closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215806666U (en) |
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2021
- 2021-05-21 CN CN202121100970.0U patent/CN215806666U/en not_active Expired - Fee Related
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