JP3051983B2 - Refueling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a refueling device installed in a refueling station for refueling automobiles and the like with gasoline or the like.

[Prior art] As is well known, such a gas station is equipped with a fueling device to refuel a vehicle with gasoline or the like. The gasoline and the vapor generated from the gasoline may ignite, and the fire may be further expanded to a very dangerous state.

In order to cope with such a fire, there has been proposed, as an apparatus for automatically extinguishing a fire at a refueling unit, disclosed in Japanese Patent Application Laid-Open No. 63-162494, which was previously proposed by the applicant. An automatic fire extinguisher that operates due to high heat is provided. When a fire occurs, the fire extinguisher detects the high heat due to the fire and automatically performs the fire extinguishing operation.

On the other hand, if strong vibration is applied to the refueling device due to an earthquake or collision of the vehicle with the refueling device, the refueling device will be damaged, and sparks generated from the refueling motor of the refueling equipment provided here will be damaged. Gasoline or gasoline vapor may ignite and cause a fire.

In order to cope with such a danger, there is a conventional lubricating device in which the lubricating motor and the lubricating pump are stopped to make the lubrication impossible.

[Problems to be solved by the invention]

In the conventional type, when a fire has already occurred, the fire extinguisher can be automatically operated by the high heat to prevent the spread of the fire.However, a strong vibration is applied to the refueling device due to an earthquake or collision of a car or the like. The fire is not extinguished if it is added.

However, in the state where such a strong vibration is applied, even if a fire has not yet occurred, the possibility of fire occurrence is very large and dangerous, and in such a case, the fire extinguishing operation is performed after the fire starts. Since it started, it was not enough to ensure the safety of the gas station.

An object of the present invention is to solve the disadvantages of the conventional example, and not only when a fire has already occurred, but also a strong vibration due to an earthquake or the like is applied to the refueling device, and the risk of fire occurrence in the refueling device is extremely low. The fire extinguisher automatically operates even when the temperature is high, ensuring fire extinguishing at the refueling device and preventing fire occurrence.
An object of the present invention is to provide a refueling device capable of improving the safety of a gas station.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a fuel supply device provided with a fire extinguisher located above a fueling device in a housing, wherein the fire extinguisher has a concave portion on the upper surface above a glass container filled with a fire extinguishing liquid. A steel ball is placed in the concave portion, a solenoid having a protruding rod with the tip facing the steel ball is provided, a temperature sensor is connected to the solenoid, and the solenoid is operated by an output from the temperature sensor. The gist is that the steel ball held in the concave portion is configured to fall on the glass container by the protruding rod.

[Action]

According to the present invention, when a fire occurs, high heat due to the fire is sensed by the temperature sensor, and the solenoid is actuated by this. The steel ball is pushed at the tip, and the steel ball falls onto the lower glass container. The glass container is destroyed by the impact force caused by the steel ball falling, and the fire extinguishing liquid inside blows out, extinguishing the fire of the refueling device. Also, if strong vibrations are applied to the refueling device due to an earthquake or car collision, even if a fire has not occurred, the steel balls will fall from the plate onto the glass container below, even if a fire has not occurred. The fire extinguishing liquid inside blows out to deal with the fire.

In the case of a fire or an earthquake, the fire extinguisher operates in any refueling device, but in the case of a collision by an automobile or the like, only the fire extinguisher of the collided fueling device operates.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a longitudinal sectional front view of an automatic fire extinguisher which is a main part showing an embodiment of a fueling apparatus of the present invention, and FIG. 2 is an overall perspective view of a fueling station provided with the fueling apparatus of the present invention. In the figure, reference numeral 1 denotes a site of a gas station, 2 denotes a building such as an office provided in the site 1, 3 denotes a canopy covering the upper portion of the site 1, and a ground fixed almost at the center of the site 1. An oil supply device 4 of the type is installed.

This refueling device 4 is one in which a housing 4a is erected on an island 5 installed on the ground. An oil supply pipe communicating with an underground oil storage tank is set up in the housing 4a, and an oil supply motor is provided as an oil supply device on the oil supply pipe. A connected refueling pump, a flow meter connected to a flow pulse transmitter, and the like are provided, and a refueling pipe end is connected to a refueling hose having a refueling nozzle at a tip outside the housing.

The refueling device of the present invention is located above a refueling device such as a refueling pump as a place where a fire is likely to occur in the housing 4a of the refueling device having such a configuration, and the fire extinguisher 6 is mounted in the housing 4a via the attachment 7. Installed.

As shown in FIG. 1, the fire extinguisher 6 has a fire extinguisher enclosed in a cylindrical container 8 made of glass as a member to be broken by an impact force, and is disposed with the longitudinal direction of the cylindrical body being horizontal. In contact with the container 8, the housing 4a
A temperature sensor 9 made of a bimetal or the like is also provided on the fixture 7 and a solenoid 10 connected to the temperature sensor 9 is provided.
Is disposed on the fixture 7 above the container 8.

A plate 12 on which, for example, a steel ball 11 is placed is provided below the solenoid 10 as a breaking member of the container 8.
The end of the protruding rod 10a that projects horizontally from the solenoid 10 faces the 11.

In the figure, reference numeral 12a denotes a concave portion for holding the steel ball 11 in a fixed position on the plate body 12 in a normal state. In this manner, the steel ball 11 is positioned so as to be able to drop above the container 8.

In the figure, reference numeral 13 denotes a metal holder for the container 8 to which the container 8 is attached to the fixture 7 via the holder 13. The holder 13 also serves as closing members at both ends of the container 8.

In the drawing, reference numeral 14 denotes a plate for preventing the steel ball 11 from dropping during transportation, a concave portion 14a corresponding to the upper portion of the steel ball 11 is formed on the lower surface, and a hole 16 for the bolt 15 to the fixture 7 is provided at the end. Has been drilled.

The housing 4a is provided for each of the plurality of (four in the illustrated example) lubrication devices 4, 4, 4, and 4 installed at the gas station as described above.
A fire extinguisher 6 is mounted in the inside, and the temperature sensors 9, 9, 9, 9 for each fire extinguisher 6 are connected to each solenoid 1 as shown in the electric circuit diagram of FIG.
0, 10, 10, 10 and the alarm 17 are connected in series.

 Next, the operation will be described.

First, a case in which a fire occurs will be described. When the temperature of the inside of the housing 4a of the refueling device 4 becomes high due to the occurrence of a fire, this high heat is detected by the temperature sensor 9 and the solenoid 10 is energized by the output from the temperature sensor 9. This operates, and the protruding rod 10a protrudes leftward in the figure.

As a result, the steel ball 11 held in the recess 12a on the plate 12 and stopped there is pushed by the projecting rod 10a and falls from the plate 12 onto the container 8 below.

The container 8 is destroyed by the impact force caused by the drop of the steel ball 11,
The fire extinguishing agent in the container 8 blows out, and the fire of the refueling device 4 is extinguished.

In this case, if the temperature sensor 9 operates in at least one of the plurality of refueling devices 4, 4, 4, 4, even if a fire or fire has not yet spread to the other four refueling devices, the other temperature sensors 9 Even if does not work, all the solenoids 10 of the other refueling devices 4 also operate, each destroying the container 8 and jetting out the fire extinguishing agent. At the same time, the alarm 17 also operates to notify that a fire has occurred in the gas station.

Next, in the case of an earthquake, all the lubrication devices 4, 4, 4, and 4 shake due to the vibration caused by the earthquake, and as a result, the steel balls 11 provided in each lubrication device 4 also swing on the plate 12 and move from the concave portion 12a. It moves out and falls naturally on the container 8.

As a result, the container 8 is destroyed by the steel ball 11 for each refueling device 4, and the fire extinguishing agent is blown out to all the refueling devices 4, 4, 4, 4 to cope with the fire.

When a strong impact force is applied to the refueling device 4 due to a collision of an automobile or the like with the refueling device 4, the steel ball 11 on the plate body 12 swings and moves out of the recess 12 a by the impact force,
It falls naturally on the container 8 and breaks it.

As a result, the fire extinguishing agent in the container 8 blows out and prevents ignition. In this case, unlike the case of a fire or an earthquake, there is a risk of a fire occurring only in the fueling device 4 that has been subjected to the collision. Therefore, the fire extinguisher 6 operates alone with respect to the fueling device 4 alone. .

In any case, this fire prevention action is effective for a long time because the fire extinguishing liquid that has squirted stays in the housing 4a for a relatively long time because the housing 4a of the fueling device 4 has a certain degree of hermetic structure. The ignition can be prevented.

When transporting the refueling device 4, the fall prevention plate 14 is placed over the steel ball 11, the concave portion 14 a is fitted to the steel ball 11, and the bolt 15 is inserted through the hole 16 at the end of the fall prevention plate 14 to the mounting fixture 7. The fall prevention plate 14 is fixed.

As a result, the steel ball 11 is sandwiched between the plate body 12 and the fall prevention plate 14 from above and below and fixed thereto.
11 will not fall.

〔The invention's effect〕

As described above, the refueling device of the present invention breaks the glass container enclosing the fire extinguishing agent by the impact force of the steel ball falling and ejects the fire extinguishing agent, so that a fire has already occurred. Of course, even if the probability of fire occurrence is very high, such as in the case of an earthquake, the steel ball can be dropped onto the glass container by vibration, and the fire extinguisher will automatically operate. The fire extinguishing and the prevention of ignition at a highly dangerous refueling unit can be sufficiently ensured, and the safety of the refueling station can be further improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a fire extinguisher, which is a main part showing an embodiment of a fueling apparatus of the present invention, FIG. 2 is an overall perspective view of a fueling station provided with a fueling apparatus of the present invention, and FIG. FIG. 1… Site 2… Building 3… Canopy 4… Refueling device 4 a… Housing 5… Island 6… Fire extinguisher 7… Fixture 8… Vessel 9… Temperature sensor 10 ... Solenoid, 10a ... Protruding rod 11 ... Steel ball, 12 ... Plate 12a ... recess, 13 ... Holder 14 ... Fall-prevention plate, 14a ... recess 15 ... Bolt, 16 ... hole 17 …… Announcer

Claims (1)

(57) [Claims] 1. A fuel supply device having a fire extinguisher provided above a fuel supply device in a housing, wherein the fire extinguisher is provided with a plate having a concave portion on an upper surface above a glass container filled with a fire extinguishing liquid. A steel ball is placed in the recess, a solenoid having a protruding rod with the tip facing the steel ball is provided, a temperature sensor is connected to the solenoid, and the solenoid is operated by an output from the temperature sensor, and is held in the recess. The lubricating device is characterized in that the steel ball which has been dropped is dropped on the glass container by the protruding rod.