JP2822023B2 - Fire hydrant valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a fire hydrant valve mounted in a fire hydrant storage box containing a fire hose.

[0002]

2. Description of the Related Art A fire hydrant valve, which is composed of an angle valve and a ball valve connected to an external water pipe, is provided in a fire hydrant storage box installed in various buildings. It is configured to supply water to a fire hose that is housed freely in and out of the box.

In the above hydrant valve, as shown in FIGS. 6 and 7, a hydrant valve 31 connected to a water pipe P has been conventionally used.
A hexagonal locking portion 33 for locking a tightening tool S such as a spanner is formed on an outer peripheral portion on the side of the inflow port 32 of the hydrant valve.
In order to connect 31 to the water pipe P, a mounting hole formed by drilling the tip of the water pipe P into one side wall of the storage box B when the fire hydrant storage box B is installed.
Projected into containment box B through 39, the inlet of fire hydrant valve 31
With the 32 side facing the inner surface of one side wall of the storage box B, a male screw portion provided on the outer peripheral surface of the distal end portion of the water pipe P is screwed with a female screw portion provided on the inner peripheral surface of the inflow port 32, Tightening tool S for locking part 33
The fire hydrant valve 31 and the water pipe P are relatively rotated while the hydrant valve 31 is locked, thereby connecting the fire hydrant valve 31 to the water pipe P.

[0004]

However, a frame 38 for mounting an opening / closing door is integrally formed around the four sides of the front opening of the fire hydrant storage box B, and the fire hydrant valve 31 has the same structure. Since the locking portion 33 of the fastening tool S is provided on the inflow port 32 side, when performing the connection work between the fire hydrant valve 31 and the water pipe P as described above, the fire hydrant valve 31 is connected to the fire hydrant storage box B. When trying to connect to the water pipe P by approaching one side wall,
The locking portion 33 is hidden by the frame portion 38 of the storage box B. Therefore, even if the fastening tool S is inserted through the opening of the storage box B to engage with the locking portion 33, However, there is a problem in that the work is troublesome because the frame portion 38 obstructs the work, and the connection work between the fire hydrant valve 31 and the water pipe P becomes difficult, thereby significantly reducing the work efficiency.

[0005] The present invention has been made in view of such problems, and the object thereof is to smoothly and efficiently connect a fire hydrant valve from the inside of a storage box to a water pipe that is externally piped. It is an object of the present invention to provide a fire hydrant valve.

[0006]

In order to achieve the above object, a fire hydrant valve according to the present invention is provided in a fire hydrant storage box and has an inflow opening opened at one side of the valve box body from outside the storage box. A fire hydrant valve adapted to be connected to a piped water pipe at one side wall of a fire hydrant storage box, wherein a fastening tool is disengaged from an outer peripheral surface of another side of the valve box body opposite to the inlet. The configuration is such that a polygonal locking portion is formed.

The fire hydrant valve having the above structure may be either an angle valve or a globe valve, and in the case of an angle valve, as described in claim 2, the outer periphery of the valve box body on the handle side. The polygonal locking portion is formed on the surface, and in the case of a globe valve, the polygonal locking portion is formed on the outer peripheral surface on the outlet side of the valve box body. Things. Further, as described in claim 4, together with the polygonal locking portion, a locking portion of a tightening tool may be formed on the outer peripheral surface on the inflow side.

[0008]

When the fire hydrant valve is attached to the inner surface of one side wall of the fire hydrant storage box, the tip opening of the water pipe from outside the storage box is inserted into the inlet of the fire hydrant valve through the mounting hole formed in the side wall of the storage box. Alternatively, a short pipe is connected to the inlet of the fire hydrant valve in advance, this short pipe is protruded outside through the mounting hole, and a water pipe is connected to the protruding end. In this connection work, since a polygonal locking portion is provided on the inlet side of the fire hydrant valve, that is, on the outer peripheral surface of the other side opposite to the one side portion, the locking portion is provided on one side wall of the storage box. It is located far away from the inside of the fire hydrant storage box so that the locking part can be seen directly from any part of the front opening of the fire hydrant storage box. Therefore, the connection between the fire hydrant valve and the water pipe can be performed smoothly and efficiently.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing one embodiment. In FIG. 1 to FIG. 3, A is a fire hydrant valve composed of an angle valve, and is a hollow valve box main body 1.
A fire extinguishing water inlet 2 having a short tubular shape is provided on one side of the fire extinguishing water and communicating with a fire extinguishing water outlet 3 formed in a lower peripheral portion of the valve box body 1 inside the inflow end of the inlet 2. Hole 4
The flow hole 4 is opened and closed by attaching and detaching the valve body 7 to and from the valve seat 5 formed on the outer peripheral portion on the other side of the fire extinguishing water flow hole 4 by turning the handle 6. doing.

In a fire hydrant valve A composed of an angle valve, as is well known, an outlet 3 communicates with the inlet 2 at a right angle, while the handle 6 is connected to the other side of the valve body 1. A valve rod 8 having a base end fixed to the center of rotation of the handle 6 is disposed on the center line of the inflow port 2, and the valve element 7 is attached to the distal end of the valve rod 8.

In the fire hydrant valve A thus configured, a polygonal shape (a hexagonal shape in the figure) in which a tightening tool S such as a spanner or a wrench is engaged with the outer peripheral surface on the other side of the valve box body 1. Is formed. The other end of the valve box body 1 forming the locking portion 9 is formed in a short cylindrical shape, and the locking portion 9 is formed on the outer peripheral surface, while the female screw portion is formed on the inner peripheral surface. An outer peripheral male screw portion 12 of a cap-shaped bearing member 11 in which the valve rod 8 is threaded through the female screw 10 is provided.
Is screwed through packing.

Further, on the outer peripheral surface of the inflow port 2 provided on one side of the valve box main body 1, locking portions 13, 13 made of mountain-shaped projections are integrally formed on the upper and lower portions or on both sides thereof. ,
The fastening tools S such as the above-mentioned wrench or wrench are configured to be engaged with the outer end surfaces of the locking portions 13. Also,
A female screw part 14 for connection to the water pipe P is provided on the inner peripheral surface of the inflow port 2 of the valve box body 1, while a female screw part for connection to the fire extinguishing hose H is provided on the inner peripheral surface of the outlet port 3. A screw portion 15 is provided.

The fire hydrant storage box B is made of a metal plate such as an iron plate and has a vertically long rectangular shape having an opening 17 which can be opened and closed by a door 16 as shown in FIG. Is attached to a frame 18 provided on the periphery of the opening 17. As shown in FIGS. 1 and 2, the frame portion 18 is formed by bending the edges of the metal plates forming the side walls and the upper and lower walls of the storage box B toward the inside of the storage box B in a U-shaped cross section. It is formed by doing. A mounting hole 19 for the fire hydrant valve A is provided at the center of the upper portion of one side wall of the storage box B so as to penetrate the inner and outer surfaces.

Next, the fire hydrant valve A is disposed on the upper side of one side of the storage box B, and the water supply pipe P piped from the part is provided with the mounting hole 19.
When one side of the fire hydrant valve A, that is, the inflow port 2 side faces the mounting hole 19, the distal end of the water pipe P is externally connected to the inside of the storage box B through the mounting hole 19. The fire hydrant valve A is supported at the tip of the water pipe P by slightly rotating the tip male screw part 20 of the water pipe P against the female thread part 14 of the inflow port 2. At this time, a fastening tool S such as a wrench or a wrench is engaged with the other side of the fire hydrant valve A, that is, the locking portion 9 formed on the outer peripheral surface of the valve body 1 on the handle 6 side. The operator holds the attached tool S in advance.

In this state, the water supply pipe P is further rotated, and the male screw part 20 at the distal end of the water supply pipe P is connected to the female screw part of the inflow port 2 while preventing the fire hydrant valve A from rotating together with the clamp S. It is screwed to 14. At this time, fire hydrant valve A
Is closed by the frame portion 18 of the storage box B, and the fastening tool S
And the fastening tool S is locked to the locking portion 9 formed on the outer peripheral surface of the other side of the valve box body 1 which is not covered by the frame portion 18 without locking. Therefore, the fastening operation can be performed smoothly without the fastening tool S being disturbed by the frame portion 18.

It should be noted that the water pipe P is not directly connected to the inlet 2 of the hydrant valve A, but the inlet 2 of the hydrant valve A is
The short pipe is connected by screwing one end opening of the short pipe to the outside, and the short pipe is protruded outside from the inside of the storage box B through the mounting hole 19, and the fastening tool S is engaged with the locking portion 9 to make the fire hydrant. The water pipe P may be connected to the fire hydrant valve A via the short pipe by screwing the water pipe P to the other end of the short pipe while holding the valve A.
In addition, during this connection work, the operator usually tries to fix one side of the valve box main body 1 close to the water supply pipe P in a non-rotating state by the tightening tool S. The box body 1 is also provided with a locking portion 13 formed of a protrusion on one side thereof. In this case, a tightening tool is used in which the tip end of the handle is bent toward one side in an L-shape. Thus, the connection between the fire hydrant valve A and the water supply pipe P can be performed by easily locking the locking portion 13 on the inlet side.

In the above embodiment, an angle valve is used as the fire hydrant valve A, but a ball valve may be used. As shown in FIG. 5, the fire hydrant valve A 'made of a globe valve is provided with an inlet 22 and an outlet 23 on both sides of a valve box main body 21, respectively. By detaching the valve body 27 attached to the tip of the valve rod 28 integrated with the handle 26 to the valve seat 25 provided in the valve box main body 21, the inflow port 22 and the outflow port 23 can be communicated, It is configured to shut off. In this fire hydrant valve A ', the other side of the valve box main body 1, that is, the outflow port 23 for connecting the fire-extinguishing hose.
A polygonal (hexagonal in the figure) engaging portion 9 for engaging a tightening tool such as a wrench or a wrench is formed on the outer peripheral surface of the device as in the above embodiment.

Also, one side of the valve box body 21, that is, the inflow port
An engaging portion 13 composed of a projection for engaging a tightening tool S such as a spanner or a wrench is provided on the upper and lower portions or both side portions of the outer peripheral surface of the 22 as in the above embodiment. A method of connecting the fire hydrant valve A 'and the water pipe P with the fastening fitting engaged with the storage box B in which the fire hydrant valve A' is disposed and the locking portion 9 of the fire hydrant valve A 'is described below. The description is omitted because it is the same as the above embodiment.

[0019]

As described above, according to the fire hydrant valve of the present invention, the inflow port provided inside the fire hydrant storage box and opened at one side of the valve box main body is connected to the water pipe piped from outside the storage box. A fire hydrant valve adapted to be connected at one side wall of a fire hydrant storage box, wherein a polygonal locking portion for engaging and disengaging a fastening tool to the outer peripheral surface of the other side of the valve box body opposite to the inflow port. When the fire hydrant valve is arranged on the inner surface of one side wall of the fire hydrant storage box and the inlet of the valve box main body is connected to a water pipe from the outside, the valve on the opposite side to the inlet is formed. The locking part formed on the outer peripheral surface of the other side of the box body is located near the center of the fire hydrant storage box, and tightening tools such as spanners and wrenches are stored without being hindered by the periphery of the opening of the storage box It can be easily inserted into the box and engaged with the above-mentioned locking portion, so that the connection between the hydrant valve and the water pipe can be made. Work is what can be done well smoothly and efficiently.

[Brief description of the drawings]

FIG. 1 is a front view of a fire hydrant valve disposed in a fire hydrant storage box;

FIG. 2 is a plan view thereof,

FIG. 3 is a sectional view of a hydrant valve,

FIG. 4 is a partially cutaway front view of a fire extinguisher storage box;

FIG. 5 is a vertical sectional front view of the globe valve;

FIG. 6 is a front view of a conventional fire hydrant valve disposed in a fire hydrant storage box;

FIG. 7 is a plan view thereof.

[Explanation of symbols]

 A Fire hydrant valve 1 Valve box body 2 Inlet 3 Outlet 6 Handle 9 Locking part 13 Locking part B Fire hydrant storage box 18 Frame part S Tightening tool

Claims (4)

(57) [Claims] 1. An inflow port disposed in a fire hydrant storage box and opened on one side of a valve box main body is connected to a water pipe piped from outside the storage box on one side wall of the fire hydrant storage box. A fire hydrant valve, wherein a polygonal locking portion for engaging and disengaging a fastening tool is formed on the outer peripheral surface of the other side of the valve box body opposite to the inlet. 2. The hydrant valve is an angle valve in which an inflow port and an outflow port are communicated at right angles through a valve body detachably attached to a valve seat by operating a handle. The fire hydrant valve according to claim 1, wherein a polygonal locking portion is formed. 3. The hydrant valve is a globe valve in which an inflow port and an outflow port communicate with each other in a straight line through a valve body detachably attached to a valve seat by operating a handle, and an outer periphery of the valve box body on the outflow side. The fire hydrant valve according to claim 1, wherein the polygonal locking portion is formed on a surface. 4. The fixing tool according to claim 1, wherein a locking portion of a tightening tool is formed on an outer peripheral surface on an inflow side together with the polygonal locking portion. The fire hydrant valve according to the paragraph.