Fire extinguishing device

Abstract

Provided is a fire extinguishing device that can easily perform fire extinguishing activities without requiring an internal combustion engine or fire fighting water of a motor vehicle. 【Solution means】The fire extinguishing device includes a water supply connector connectable to a domestic water supply, an electric pump that pressurizes tap water supplied through the water supply connector based on power from a commercial power source or a built-in battery to send out high-pressure water, a high-pressure pipe through which the high-pressure water sent out from the electric pump passes, a water discharge nozzle connected to the high-pressure pipe that discharges the high-pressure water in response to an operation of a trigger by an operator, and a pressure switch that supplies power to the electric pump when the pressure of the high-pressure water in the high-pressure pipe is below a set value and blocks power supply to the electric pump when the pressure of the high-pressure water in the high-pressure pipe exceeds the set value.

Description

Technical Field

[0001] This specification discloses a technology related to a fire extinguishing device.

Background Art

[0002] As a fire extinguishing device, there is known a fire extinguishing device that pressurizes the fire water supplied from a fire water supply by driving a pump with an internal combustion engine of a motor vehicle and injects it from a nozzle (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] There has been a demand for a fire extinguishing device that can easily carry out fire extinguishing activities without the need for an internal combustion machine of a motor vehicle and a fire water supply.

Means for Solving the Problems

[0005] A fire extinguishing device according to one aspect disclosed in this specification includes a water supply connector connectable to a domestic water supply, an electric pump that pressurizes the tap water supplied through the water supply connector based on electric power from a commercial power supply or a built-in battery and discharges high-pressure water, a high-pressure pipe through which the high-pressure water discharged from the electric pump passes, a water discharge nozzle connected to the high-pressure pipe and discharging the high-pressure water in response to an operation of a trigger by an operator, and a pressure switch that supplies power to the electric pump when the pressure of the high-pressure water in the high-pressure pipe is equal to or lower than a set value and blocks power supply to the electric pump when the pressure of the high-pressure water in the high-pressure pipe exceeds the set value. According to this form of the fire extinguishing device, high-pressure water can be stably generated from tap water and used for fire extinguishing.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Modes for Carrying Out the Invention

[0007] FIG. 1 is an explanatory diagram showing a fire extinguishing device 100 according to the first embodiment. The fire extinguishing device 100 is a device used to extinguish fires using water during a fire. The fire extinguishing device 100 has a weight and size that can be carried by one hand. The fire extinguishing device 100 can carry out fire extinguishing activities using tap water and commercial power supply. Therefore, the fire extinguishing device 100 can easily carry out fire extinguishing activities without the need for an internal combustion engine of a motor vehicle and fire water power.

[0008] The fire extinguishing device 100 includes a housing 105, a water supply connector 110, a power supply connector 120, an electric pump 130, a high-pressure pipe 142, a high-pressure water connector 144, a high-pressure hose 146, a water discharge nozzle 150, and a pressure switch 160.

[0009] The housing 105 of the fire extinguishing device 100 is an outer shell that houses each part of the fire extinguishing device 100. The housing 105 is configured to be carried by one hand by an operator. The housing 105 may be configured to be carried on the back by an operator.

[0010] The water supply connector 110 of the fire extinguishing device 100 is configured to be connectable to a domestic water supply CW. The water supply connector 110 can be connected to the domestic water supply CW via a water supply hose 112. The water supply connector 110 receives the supply of tap water from the domestic water supply CW.

[0011] The power supply connector 120 of the fire extinguishing device 100 is configured to be connectable to a commercial power supply CE. The power supply connector 120 can be connected to the commercial power supply CE via a power cord 122. The power supply connector 120 receives the supply of power from the commercial power supply CE.

[0012] The electric pump 130 of the fire extinguishing device 100 pressurizes the tap water supplied through the water supply connector and discharges high-pressure water. The electric pump 130 operates based on the power from the commercial power supply CE. The electric pump 130 is an electric piston pump.

[0013] The high-pressure pipe 142 of the fire extinguishing device 100 is a pipe through which the high-pressure water discharged from the electric pump 130 passes. The high-pressure water connector 144 of the fire extinguishing device 100 is a joint that connects the high-pressure pipe 142 and the high-pressure hose 146. The high-pressure hose 146 of the fire extinguishing device 100 is a pipe that connects between the high-pressure water connector 144 and the water discharge nozzle 150. The high-pressure hose 146 is a flexible hose.

[0014] The water discharge nozzle 150 of the fire extinguishing device 100 is a device that discharges high-pressure water in response to the operation of the trigger 152 by the operator. When the operator holds the trigger 152, high-pressure water is discharged from the tip of the water discharge nozzle 150. When the operator releases the trigger 152, the discharge of high-pressure water from the water discharge nozzle 150 stops.

[0015] The pressure switch 160 of the fire extinguishing device 100 is provided in the high-pressure pipe 142. The pressure switch 160 detects the pressure of the high-pressure water in the high-pressure pipe 142. The pressure switch 160 turns on and off the power supply to the electric pump 130 from the power supply connector 120 according to the pressure of the high-pressure water in the high-pressure pipe 142. The pressure switch 160 is a mechanical pressure switch. The pressure switch 160 may be an electric pressure switch. The pressure switch 160 allows the power supply to the electric pump 130 when the pressure of the high-pressure water in the high-pressure pipe 142 is equal to or less than the set value P. The pressure switch 160 blocks the power supply to the electric pump 130 when the pressure of the high-pressure water in the high-pressure pipe 142 exceeds the set value P.

[0016] According to the fire extinguishing device 100 described above, high-pressure water can be stably generated from tap water and used for fire extinguishing. As a result, according to the fire extinguishing device 100 of this form, fire extinguishing activities can be easily carried out without the need for the internal combustion machinery of the motor vehicle and fire water power.

[0017] FIG. 2 is an explanatory view showing the fire extinguishing device 100B of the second embodiment. The fire extinguishing device 100B is the same as the fire extinguishing device 100 of the first embodiment, except that it includes a built-in battery 120B instead of the power supply connector 120. The built-in battery 120B is a secondary battery that can be charged with power from the commercial power supply CE. The built-in battery 120B may be configured to be removable when charging.

[0018] According to the fire extinguishing device 100B described above, high-pressure water can be stably generated from tap water and used for fire extinguishing without requiring the commercial power supply CE during the fire extinguishing operation. As a result, according to the fire extinguishing device 100B of this form, the fire extinguishing operation can be easily carried out without requiring the internal combustion machinery of the motor vehicle and the fire water power.

[0019] The technology disclosed in this specification is not limited to the above-described embodiments, examples, and modified examples, and can be realized in various configurations without departing from the gist thereof. For example, among the technical features in the above-described embodiments, examples, and modified examples, those corresponding to the technical features in each form described in the column of the outline of the invention can be appropriately replaced and combined in order to solve some or all of the above-described problems or to achieve some or all of the above-described effects. In addition, the technical features not described as essential in this specification can be appropriately deleted.

Description of Reference Numerals

[0020] 100... Fire extinguishing device 100B... Fire extinguishing device 105... Housing 110... Water supply connector 112... Water supply hose 120... Power supply connector 120B... Built-in battery 122... Power cord 130... Electric pump 142... High-pressure pipe 144... High-pressure water connector 146... High-pressure hose 150... Drain nozzle 152... Trigger 160…Pressure switch CE…Commercial power supply CW…Domestic water supply P…Set value

Claims

Claim 1 A fire extinguishing device comprising: A water supply connector connectable to a domestic water supply; An electric pump that pressurizes tap water supplied through the water supply connector based on power from a commercial power source or a built-in battery and discharges high-pressure water; A high-pressure pipe through which the high-pressure water discharged from the electric pump passes; A water discharge nozzle connected to the high-pressure pipe that discharges the high-pressure water in response to an operation of a trigger by an operator; A pressure switch that permits power supply to the electric pump when the pressure of the high-pressure water in the high-pressure pipe is equal to or less than a set value, and blocks power supply to the electric pump when the pressure of the high-pressure water in the high-pressure pipe exceeds the set value A fire extinguishing device provided with the above components.

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