JPH03131280A - Valve-opening mechanism of fire hydrant apparatus - Google Patents

Abstract

PURPOSE:To enable opening a discharge valve simultaneously with taking out a fire hose nozzle by constituting an apparatus in such manner that, when the fire hose nozzle is taken out from a nozzle holder, the detent part of the nozzle biases a latch to move a moving table and a transmission means connected with the table is drawn. CONSTITUTION:When the handle 8 of a fire hose nozzle is drawn, a projection 6 is being guided by long grooves 5, 22 while moving. In this case, the projection 6 in contact with the rear end 5b of the long groove 5 biases a latch 12, of which rotation is regulated by a pin 17, in the same direction. When the projection 6 moves further in the same direction, the projection 6 enters a run-off 7, is released from the engagement with the latch 12 to deviate from the long groove 5, and the fire hose nozzle 1 is removed from a nozzle holder 2. When a biasing force is applied to the latch 12, a moving table 11 moves in the same direction as the latch 12 against the elasticity of a coil spring 10. Thus, a wire 18 connected with the table 11 also moves in the same direction, the lever of a discharge valve rotates and the discharge valve is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a fire hydrant system installed in tunnels, buildings, etc. More specifically, it relates to a valve opening mechanism for a water discharge valve linked to a fire extinguishing nozzle of a fire hydrant system. It is related to.

Conventional technology In a conventional fire hydrant system, when a fire occurs, the driver of a car or the like pulls the handle of the forward-tiling door forward to open the door 3, then removes the fire extinguishing nozzle from the nozzle holder and closes the water discharge valve. Turn the lever to open the valve.

Then, at the same time as the water discharge valve opens, the pump starts and water is supplied.

Problems to be Solved by the Invention In conventional fire hydrant systems, the water discharge valve is opened by turning a lever, but the driver of a car who is tasked with extinguishing a fire is not familiar with the operation and does not know where the lever is. Therefore, it takes time to open the water discharge valve, and firefighting operations may not be carried out effectively.

In view of the above circumstances, the present invention aims to ensure that the water discharge valve can be opened at an appropriate time. a long groove into which a nozzle is detachably inserted; a movable table having a latch that engages the nozzle when the nozzle is inserted into the long bath; and movable in a direction in which the nozzle is pulled out; The above objective is achieved by providing a transmission means for connecting the water discharge valve to the water discharge valve.

When the fire extinguishing nozzle held by the fixed table and the nozzle holder is pulled toward you, the locking part of the fire extinguishing nozzle moves along the long groove, and the locking part engages the movable table via the latch. Move in the same direction.

This movement of the moving table pulls the transmission means of the water discharge valve, so that the water discharge valve is opened.

Embodiment One embodiment of the present invention will be described with reference to FIGS. 1 to 6, and the same reference numerals have the same names and functions.

As shown in FIG. 5, a nozzle holder 2 for holding a fire extinguishing nozzle 1 is provided on the front door of a fire hydrant device (not shown). This nozzle boulder 2 includes a fixed table 3 and a nozzle holder 4 formed in a step shape. A long groove 5 is formed in the upper surface 3a of the fixed table 3 along its longitudinal direction. This length fI45 is formed to a size that allows the locking part of the fire extinguishing nozzle l, that is, the fixing protrusion 6, to be inserted in a detachable manner. 7 is provided. This projection 6 is provided at the base end of the fire extinguishing nozzle, and a handle 8 is fixed to this projection 6.

On the back side of the upper surface 3a of the fixed table 3, a plurality of guide portions, that is, guide bins 9 are provided along the longitudinal direction of the long groove 5.

A concave movable table 11 is provided on the back side of the upper surface 3a so as to be movable eight times, and this movable table 11 is connected to the fixed table 3 via a coil spring 10. The moving table 11 includes a guide hole 25, a latch 12, and a connecting portion 13. The guide hole 25 is an elongated hole, and is formed along the longitudinal direction of the elongated groove 5 on both sides of the movable table 11. The guide pin 9 is inserted through the guide hole 25, and the nut 14 is screwed onto the tip of the pin 9. This latch 12 is provided on the back side of the movable table 11 via a support shaft 15, and a hair spring 16 is attached to the support shaft 15.

One end of this hair spring 16 is bent into an L shape to latch 1
2, and the other end is locked to a bin 17 fixed to the movable table 11.

The rear end of the moving table 11 is provided with one connection part for fixing one end of a transmission means, for example a wire 18.

The other end of this wire 18 is connected to a lever 21 of a water discharge valve 20.

The nozzle holder 4 is formed in a cross-sectional shape, and its upper surface 4a
is formed with a long groove 22 corresponding to the length 7n5, and
The lower end of the side surface 4b is connected to the rear end of the fixed table 3 via a spring hinge 23. This side 4b
A stopper 24 for keeping the nozzle holder 4 in an upright position is provided.

Next, the operation of this embodiment will be explained.

When the handle 8 of the fire extinguishing nozzle is pulled in the direction of arrow A8, the protrusion 6
moves in the direction of arrow A8 while being guided by the long groove 5.22, and the nozzle holder 2 changes from the core shape shown in FIG. 2 to the state shown in FIG. 1.

At this time, as shown in Fig. 4A, the rear end 5 of the long groove 5
The protrusion 6 that is in contact with b moves in the direction of the arrow A8 as shown in FIG. When moved, the protrusion 6 forms a recess 7 as shown in FIG. 4C.
The extinguishing nozzle 1 is removed from the nozzle boulder 2. In this way, the fire extinguishing nozzle 1 is removed from the nozzle boulder 2.
When a pressing force in this direction is applied, the movable table 11 moves in the same direction as the latch 12 against the elasticity of the coil spring 10 while being guided by the guide pin 9 inserted into the guide hole.

As a result, the wire 18 connected to the table 11 also moves in the same direction, so the first collar 21 of the water discharge valve 20 rotates and the water discharge valve 20 opens! 1-Water supply starts If the fire extinguishing nozzle 1 is not removed from the nozzle holder 2,
As shown in FIG. 6, the nozzle retainer 4 (indicated by the two-dot chain line), which is supported by the stone bar 23 and is in an upright shape, is pushed by the spring hinge 23 and lies flat in the shape of a mountain. There is no indication that it will be an obstacle to the delivery of the. At the same time, the movable table 11 is returned by the coil spring 10, and the wire ]8 is in the loose X2 state. After extinguishing the fire, operate the lever 2] to close the water discharge valve 20, insert the protrusion 6 of the fire extinguishing nozzle 1 into the long groove 5.22, and close the rear end 5.
When pressed toward the b side, as shown in Figure 4D, the tip of the latch 1-2 comes into contact with the end of the latch 1-2 during the movement, and while rotating the latch 12 against the elasticity of the beard spring 6, the f& end 5b
It fits in the department.

FIG. 7 shows another embodiment, and this nozzle boulder 2 is
It is composed of a fixed table 3 formed in a step shape, a nozzle holder 4, and a movable table 11, and the skin of the fire hydrant device (not shown) is installed in the housing.The nozzle holder 4 is attached to the fixed table 3 with a spring hinge. 23 in the lodging direction (
= I force is installed. nu, nozzle holder 4
The movable table 11 is slidably inserted into the long groove 22 and the elongated guide hole 25, into which the groove 60, which is the locking part of the nozzle, is freely inserted. is removed (+ If is taken, this moving table 11 is a coil spring)
The movable table 11 is connected to the nozzle holder 4 through the latch 12, the connecting portion 13 of the wire 18 which is inserted into the guide hole 25 and also serves as a guide bin, and the support shaft of the latch 12. , the bottle 1 that the latch 12 abuts
It has 7 and 3.

The latch 12 has one end facing the long groove 22 and the other end abutting against the bottle 17.

When the body of the fire extinguishing nozzle 1 or the handle 8 is pulled in the direction of arrow A8, the body 60 of the nozzle 1 moves in the direction of the arrow while being guided by the long groove 22, and the launch 12 is moved against the coil spring 10. When the body 60 is further removed from the length iτ) 22, the nozzle 1 is removed from the nozzle bolder 2, and the nozzle 1 is removed from the nozzle boulder 2. When a pressing force in the direction is applied, the moving table 1 moves in the same direction as the latch 12 against the coil spring 0, so the wire 18 connected to the moving table 11 also moves in the same direction, causing a water discharge (not shown) to occur. The l/bar of the valve rotates to open the valve.

Moreover, without removing the fire extinguishing nozzle 1 from the nozzle holder 2,
The nozzle holder 4, which had been held upright by being locked by a not-shown l-flange, is brought down at J'' due to the action of the spring hinge 23, and the upper surface of the nozzle holder 2 becomes flat. It does not become an obstacle to performing poses.

The operations after the fire extinguishing work are the same as in the previous embodiment.

The transmission means may be a bell 1-, a chain, a link mechanism, etc. If a solenoid valve is used as the water discharge valve, the switch that controls the opening of the valve should be pulled by a wire]-8. Alternatively, this switch may be installed on the nozzle holder and turned on by moving the movable table.Also, the locking part of the nozzle may be the part bf that contacts the port, and the fixed table may be attached to the fire hydrant. It is also possible to use a housing or a door body.

Effects of the Invention Since the valve opening mechanism of the fire hydrant device according to the present invention is configured as described above, when the fire extinguishing nozzle is pulled out from the nozzle holder, the locking portion of the nozzle presses the latch to move the movable table. . Therefore, the transmission means connected to the moving table is pulled, and the water discharge valve is opened.

In this way, since the water discharge valve opens at the same time as the fire extinguishing nozzle is taken out, unlike the conventional example, it does not take time to open the water discharge valve.

Therefore, even a person inexperienced in fire extinguishing operations, such as a driver, can perform effective extinguishing operations.

[Brief explanation of the drawing]

1 to 6 are views showing one embodiment of the present invention, in which FIG. 1A is an exploded perspective view showing a fixed table and a nozzle holder, FIG. 1B is an exploded perspective view showing a moving table and a transmission means, FIG. 2 is a perspective view of the back side showing a usage state, FIG. 1 is a perspective view showing another state of FIG. 2, and FIGS. 4A to 4D are schematic diagrams showing changes in the protrusion and latch, FIG. 5 is a front perspective view showing the state of use, FIG. 6 is a front view showing changing states of the nozzle and lever presser, and FIG. 7 is a fJ view of another embodiment. 1... Fire extinguishing nozzle 2... Nozzle holder 3... Fixed table 4... Nozzle holder 5... Long groove 5a... ...Front end of the long groove 6 ...Protrusion 7 ... Relief portion 11 ...Moving table 12 ...Latch 18 ...Wire 20 ... ... Water discharge valve 22 ... Long groove

Claims (5)

[Claims] (1) A fixed table that holds a fire extinguishing nozzle and a nozzle holder; A long groove that is provided on at least one of the fixed table and the nozzle holder and into which the nozzle is removably inserted; The nozzle is inserted into the long groove. a movable table that has a latch that engages the nozzle when the nozzle is pulled out and is movable in the direction in which the nozzle is pulled out; and a transmission means that connects the movable table and the water discharge valve. Valve opening mechanism for fire hydrant equipment (2) A valve opening mechanism for a fire hydrant device according to claim 1, wherein the nozzle holder is provided so as to be able to rise and fall freely. (3) A valve opening mechanism for a fire hydrant device according to claim 1, wherein the long groove is provided on the fixed table. (4) A valve opening mechanism for a fire hydrant device according to claim 1, wherein a relief portion is formed at the front end of the long groove. (5) A valve opening mechanism for a fire hydrant device according to claim 1, wherein the fire extinguishing nozzle has a locking portion that engages with the long groove.