阅读说明：本技术 一种燃气阻断装置 (Gas blocking device ) 是由 王科伟 于 2020-07-24 设计创作，主要内容包括：本发明公开了一种燃气使用安全的领域,发生紧急情况时燃气阻断的方法。使用一种燃气阻断装置,在燃气使用过程中,在紧急情况发生需要阻断燃气时可以及时自行关闭燃气,有效防止重大险情事故发生。燃气阻断装置是一套包含燃气开关组件、动力驱动单元、信号接收处理单元、警报单元、人工干预组件的装置。预留了可以人工干预的功能,即可以在安全环境下人工控制或者通过远程控制装置打开关闭燃气。(The invention discloses a method for blocking gas in emergency, belonging to the field of safe use of gas. The gas blocking device is used, so that in the use process of gas, the gas can be automatically closed in time when the gas needs to be blocked in an emergency, and major dangerous accidents are effectively prevented. The gas blocking device is a set of device comprising a gas switch component, a power driving unit, a signal receiving and processing unit, an alarm unit and a manual intervention component. The function of manual intervention is reserved, namely, the fuel gas can be manually controlled or opened and closed through a remote control device in a safe environment.)

1. A gas blocking device is characterized by comprising a gas switch assembly, a power driving unit, a signal receiving and processing unit, an alarm unit and a manual intervention assembly.

2. The gas switching assembly of claim 1, which has two modes, the first mode is to connect and fasten the gas blocking device and the gas switching valve by a clamp, and the second mode is to replace the original gas switching valve by the gas switching valve of the gas blocking device.

3. The gas switching valve according to claim 2, wherein the gas switching valve is used in a place including, but not limited to, a gas pipeline, a gas bottle, a gas tank, etc.

4. The power drive unit of claim 1, wherein the power includes one or more of the following, but not limited to, electric power, pneumatic power, hydraulic power, and the like.

5. The signal receiving and processing unit of claim 1, comprising two functions of signal receiving and processing, the receiving and processing modes and devices being different according to the signal type.

6. A signal according to claim 5, wherein the receiving means includes but is not limited to wired or wireless signal input, and the signal type includes but is not limited to smoke concentration, oxygen content, temperature, air humidity, other devices or manually transmitted control signals, etc.

7. An alarm unit as claimed in claim 1, wherein the functions include one or more of, but are not limited to, sounding an audible alarm, lighting an alarm, sending an alarm message, placing a reserved call, alerting and the like.

8. The manual intervention assembly of claim 1, wherein the gas blocking device is capable of manually opening or closing the gas switch valve under normal or abnormal conditions.

9. The gas shut-off device as defined in claim 1, including the steps of:

the signal receiving and processing unit of claim 1, wherein the received signal needs to turn on or off the fuel gas, and the processing unit converts the signal into a signal which can be responded by the power driving unit and the early warning unit;

step two, after the power driving unit of claim 1 receives the signal, driving the gas switching device to make the gas switching valve change from closed to open state or from open to closed state;

step three, sending out alarm information after the alarm unit of claim 1 receives the signal.

Technical Field

The invention relates to the field of gas use safety, in particular to a gas blocking method in emergency.

Background

With the development of economy, liquefied gas and fuel gas enter thousands of households and the catering industry, a kitchen is a place where open fire works, and is always a key area for fire prevention, frequent fuel gas accidents cause palpitation, the causes of fuel gas fire accidents are very complex, the gas fires are easy to lose control to cause deflagration and even explosion, and if small accidental fires occur, the small fires cannot be timely extinguished, the big accidents are serious afterwards. Major kitchen accidents are usually caused by minor accidents, and besides security propaganda and security inspection, no better equipment is available at present to prevent more serious accidents.

Disclosure of Invention

The invention aims to provide a fuel gas blocking method and a fuel gas blocking device to solve the problems.

In order to achieve the purpose, the invention provides a set of device comprising a gas switch component (1), a power driving unit (2), a signal receiving and processing unit (3), an alarm unit (4) and a manual intervention component (5), wherein in the use process of gas, the gas can be automatically closed in time when the gas needs to be blocked in an emergency situation, so that serious dangerous accidents are effectively prevented, and the gas can be manually controlled or opened and closed through a remote control device in a safe environment.

The following relevance exists among all component units of the gas blocking device:

the gas switch component (1) connects a gas supply source (6) and a target (7) using gas to play the roles of connection and switch; a gas switching valve (8) provided in the gas switching unit (1) and configured to supply gas to the target (7) using gas without changing the gas supply method of the gas supply source (6); the power driving unit (2) is connected with the gas switch component through a clamp, and the power driving unit and the gas switch component are combined into a whole and fixed on a non-moving position of a gas supply source (6) or a target (7) using gas; a space is reserved for the combination of the power driving unit (2) and the gas switch component (1), so that the manual intervention component (5) penetrates through the reserved space, and the diameter of the gas switch valve (8) can be manually controlled; the signal receiving and processing unit (3) and the alarm unit (4) can be integrated together and installed and integrated with other component units of the gas blocking device, so that the gas blocking device becomes a complete object, and can also be respectively installed and connected by a line and presented in the form of accessories of the gas blocking device.

When the gas blocking device is used for treating emergency, the following steps are provided:

step one, the signal receiving and processing unit (3) receives a signal to turn on or off the fuel gas, and converts the signal into a signal which can be responded by the power driving unit (2) and the early warning unit (4)

Step two, after the power driving unit (2) receives the signal, the power driving unit drives the gas switch assembly to enable the gas switch valve (8) to be switched from a closed state to an open state or from the open state to the closed state;

and step three, sending out alarm information after the alarm unit (4) receives the signal.

Drawings

Fig. 1 is a schematic diagram showing the relationship between the component units according to the present invention.

Fig. 2 is a preview of the overall structure of the present invention.

Fig. 3 is a schematic view of the installation of the device of the present invention and a gas switching valve.

Fig. 4 is a schematic view of the power drive unit of the present invention.

FIG. 5 is a circuit diagram of the present invention.

Detailed Description

The following is a detailed embodiment of the present invention, and the technical solutions and advantages of the present invention will be further described with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, which is intended to be illustrative, and not all embodiments of the invention. Other embodiments extended or modified based on the embodiments of the present invention are within the scope of the present invention.

In one embodiment, as shown in fig. 2, the gas shutoff device is a single unit, and all the unit components are integrated together to form a single integral unit.

Furthermore, the gas blocking device is arranged on a gas pipeline (9) and is connected and fastened with the gas switch valve (8) through a clamp (10).

Further, the input signal is an electric signal capable of representing the smoke concentration, the signal is connected through a cable, and the signal processing element is a relay (11).

Further, the power driving unit (2) comprises a 3-6V direct current micro motor (12), three No. 7 dry batteries (13) are connected in series to supply power, and the three batteries (13) are installed in a centralized mode through a battery box.

Furthermore, a worm (14) is arranged at the shaft end of the micro motor (12), a worm wheel (15) matched with the worm is arranged in the middle of a transverse long shaft (17), a clamp (10) is arranged at one end of the long shaft (17) and fastened with the gas switch valve (8), the torque of the micro motor is amplified through the combination of the worm and the gear, and the gas switch valve is driven to be switched from a closed state to an open state or from the open state to the closed state.

Furthermore, the micro motor, the battery and the relay form a circuit loop, when the input end of the relay receives an electric signal, the loop is closed, the micro motor is started, and the power driving unit responds.

Furthermore, the alarm unit comprises a buzzer, the relay and the battery form a circuit loop, and when the input end of the relay receives an electric signal, the loop is closed, and the buzzer gives out an alarm sound.

Furthermore, the other section of the long shaft (17) is connected with a manual control operating lever, and the gas switch valve can be opened or closed manually under normal or abnormal conditions.

In this embodiment, as shown in fig. 3, the clamp (10) for connecting and fastening the gas blocking device and the gas switch valve (8) is composed of a pair of clamping jaws, and is fastened on the gas switch valve (8), so that the gas blocking device cannot be loosened and fall off when the valve is opened or closed.

In the embodiment, as shown in fig. 4, the core of the power driving unit (2) is a transverse long shaft (17), one end of the power driving unit is a clamp (10) connected with the gas switch valve (8), the other end of the power driving unit is a manual control operating lever (16), a driven worm wheel (15) is installed in the middle part of the power driving unit, and the driven worm wheel (15) can slide left and right on the long shaft (17) but cannot rotate relatively; when the micro motor (12) is started, the worm (14) rotates, and finally power is transmitted to the gas switch valve (8) through the combination of the worm and the gear, so that the switching action is realized; when the worm wheel and the worm are meshed, the long shaft (17) cannot rotate, when manual intervention is needed, the push operating lever (16) pushes the driven worm wheel away from a region meshed with the worm, so that the long shaft (17) can rotate freely, manual control on opening or closing of a gas switch valve is achieved, and after the manual control operating lever is loosened, a spring (18) resets and pushes the driven worm wheel (15) to return to a position meshed with the worm.

In this embodiment, there is a pair of micro switches, which can feed back the rotation state of the gas switch valve, and cut off the power supply of the micro motor after the gas switch valve is rotated to the right position.

In this embodiment, as shown in fig. 5, the micro motor (19), the micro switch (20), the battery (22) and the relay (21) form a first circuit loop, the buzzer (23), the battery (22) and the relay (21) form a second circuit loop, the input signal circuit (24) and the relay (21) form a third circuit loop, the relay is an assembly of three sets of circuit loops and is a signal receiving and processing unit in this embodiment, the first circuit loop and the second circuit loop are used as response signals to be connected to an output port of the relay, and the third circuit loop is used as a trigger signal to be connected to an input port of the relay.

In this embodiment, the spring that the driven worm wheel resets, micro motor, micro-gap switch, relay, battery (battery case), bee calling organ and the used screw of installation all are ordinary general spare, and the anchor clamps of being connected the fastening with the gas switch valve can select for use the metal material processing, and the plastics material processing can all be selected for use to other accessories in addition.

As mentioned above, all the configurations are easy to realize, low in cost and reliable in performance. Additional variations and/or substitutions may be made in the configurations described in these embodiments by those skilled in the art once they learn of the basic inventive concepts. The particular features, structures, materials, or characteristics described in this embodiment may be combined or added in any suitable manner in any one or more embodiments without affecting the user's needs and security functions.

The above-described embodiments are provided to enable persons skilled in the art to make or use the invention, and the scope of the invention is not limited thereto, so that the modifications and/or substitutions made according to the embodiments of the invention should be covered within the scope of the invention.