JP2847501B2 - Water pipe cleaning valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pipe cleaning valve for discharging mud and sand that has entered the water pipe when the water pipe is laid.

[0002]

2. Description of the Related Art Conventionally, when a water pipe is laid, mud and sand enters the water pipe when the water pipe is connected to the water pipe. It is discharged from the tap. Conventionally, a water pipe cleaning valve that can discharge mud and sand entering the inside of the water pipe when the water pipe is laid without discharging it from a general household water tap is disclosed in, for example, Japanese Utility Model Publication No.
It has been proposed as in JP-A-31351.

[0003]

However, in the case of the above-mentioned prior art, the connection between the water pipe and the valve is not established because the connection pipe of the valve is simply inserted into the connection port of the water pipe. There has been a problem that the intended purpose cannot be sufficiently achieved.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a valve connected to a water pipe having a connection flange formed with a bolt hole on a periphery of a connection port, and an object thereof. At the base of the insertion pipe portion that communicates with the water port through the inside of the valve body, a joining flange that is joined to the connection flange of the water pipe is provided around the base, and a bolt insertion hole corresponding to the bolt hole is formed in the joining flange. And a bolt screw hole is drilled, and the bolt screw hole is used for cleaning a water pipe in which a bolt whose tip is in contact with a connection opening edge of the water pipe is screwed. In the valve, in the gap between the inner peripheral surface of the connection port of the water pipe and the outer peripheral surface of the insertion pipe portion,
A rubber ring for sealing, a ring for buffering, and a ring for fixing are interposed.

[0005] Further, a connection flange formed with a bolt hole is connected to a connection port.
A valve connected to a water pipe on the periphery of the
Insertion pie communicating with the water port and inside the valve body
At the base of the tap part, a joining flange that is joined to the connecting flange of the water pipe
The joint flange has bolts corresponding to the bolt holes.
Holes are drilled and bolt screw holes are drilled
The tip of the bolt screw hole is
Water supply with bolts that are screwed into the connection edge of the pipe
In a valve for cleaning a pipe, an inner periphery of a connection port of the water pipe is provided.
In the gap between the surface and the outer peripheral surface of the insertion pipe portion, a seal is provided.
Rubber ring, shock absorbing ring, and fixing ring
And, and in the gap between the connection port inner peripheral surface of the water pipe and the insertion pipe portion distal end face, characterized in that interposing a ring-shaped liner body.

[0006]

FIG. 1 is a block diagram showing an embodiment of the present invention.
19 will be described in detail. FIG. 1 is a front view of a connecting flange for attaching to a water pipe on which a connecting flange is not formed. FIG. 2 is a diagram showing a state in which a cleaning valve for a water pipe according to the present invention is connected to a female connection port of the water pipe. FIG. 3 is a front view of a water pipe cleaning valve shown in FIG. 2, FIG. 4 is a front view of a sealing rubber ring in the present invention,
FIG. 5 is a cutaway side view of the same part, FIG. 6 is a front view of a buffer ring (backup ring), FIG.
FIG. 8 is a front view of a fixing ring (lock ring), and FIG.
Is a cutaway side view of the same portion, FIG. 10 is a partially enlarged plan view showing a divided portion of the fixing ring body, FIG. 11 is a front view of a drawing device of the fixing ring body, FIG. 12 is a side view thereof, and FIG. FIG. 14 is a front view of the ring-shaped liner body, FIG.
5 is an explanatory sectional view showing an example of a connection state when a ring-shaped liner body is not used, FIG. 16 is an explanatory sectional view when a ring-shaped liner body is used, and FIG. 17 is a water pipe according to the present invention. A partially omitted front view showing a flexible pipe used for a cleaning valve, FIG. 18 is a front view showing a water supply device, and FIG. 19 is a partially cutaway view showing a state when the water supply device is connected to a water pipe. It is a side view.

In FIG. 1, reference numeral A denotes a valve body connected to a water pipe 3 having a connection flange 2 having a bolt hole 1 formed in the periphery of the connection port, and communicating with a water discharge port 4 through a valve body 5. At the base of the insertion pipe part 6, a joining flange 7 joined to the connecting flange 2 of the water pipe 3 is provided around. A bolt insertion hole 8 corresponding to the bolt hole 1 is formed in the joining flange 7. A bolt 10 is drilled and a bolt screw hole 9 is drilled, and a bolt 10 whose tip abuts on the connection opening edge of the water pipe 3 is screwed into the bolt screw hole 9. In addition, a bolt 1a is inserted into the bolt hole 1 and the bolt insertion hole 8, and the bolt 1a can be tightened with a nut 1b. Here, looking back at this type of conventional water pipe, there are a water pipe having a connection flange formed on the periphery of the connection port and a water pipe having no connection flange.

A cleaning valve for a water pipe according to the present invention is connected to a water pipe of the former type by using a connection flange thereof, and a connection flange 2 as shown in FIG. 1 is connected to a water pipe of the latter type. They are attached and connected.

FIGS. 4 and 5 show a sealing rubber ring 11 according to the present invention, which is coated with a required lubricant (not shown) on the outer peripheral surface 6a of the insertion pipe portion 6 at the time of connection. It can be attached together. The diameter, thickness and width of the sealing rubber ring 11 are determined in advance by the inner diameter of the connection port of the water pipe 3 to be connected. 6 and 7, reference numeral 12 denotes a buffer ring (backup ring) which is formed of an elastic body having appropriate hardness such as rubber or plastic, and has a partially oblique cut portion 12a as shown in FIG. , 12a, and has a tapered surface 12b on one side end surface that comes into contact with a tapered surface 13b provided on one side surface of a fixing ring 13 (lock ring) described later. The fixing ring 13 is made of metal or other appropriate material.
As shown in FIG.
Slots 13 for locking the squeezing device at both ends of the divided portion 13a
c, 13c. 11 and 12, reference numeral 20 denotes an aperture device for the fixing ring body 13, and 21 and 21 denote the aperture.
The locking portion provided on the device 20 . 13 and 14, reference numeral 14 denotes a ring-shaped liner body, which is formed of a material having appropriate hardness and elasticity, such as rubber or plastic, and whose diameter, thickness, and width dimensions are connection ports of the water pipe 3 to be connected in advance. It is set by the gap size between the inner diameter of the portion and the distal end surface 6b of the insertion pipe portion 6. 15 and 16, reference numeral 15 denotes a fixing ring body fitting groove provided annularly on the inner peripheral surface 3a of the connection port of the water pipe 3.

In FIG. 17, reference numeral 16 denotes a flexible pipe used for discharging mud and sand that has entered the inside of the water pipe, one end of which is connected to the water discharge port 4 of the valve body A, and the other end of which is a work place. It is used to discharge mud and sand that has entered the inside of the water pipe by being guided to an outer gutter (not shown).

FIGS. 18 and 19 show a water supply device 18 used for connecting a water pipe 3 having a valve according to the present invention to another water pipe 17. The water pipe 18 shown in FIG. A water supply device 18 is connected to a connection pipe 19 connected to the water supply device 17, and the water supply device 18 and the valve according to the present invention are connected by the flexible pipe 16 so as to connect the two water pipes 3 and 17. It was made.

Next, the operation will be described. According to the present invention, when a large number of water pipes are connected and laid, for example, as shown in FIG. 2, the water pipe 3 at the end thereof (provided that the water pipe has the connection flange as described above). ) Is inserted into the connection port, and the bolt 1a is inserted into the bolt hole 1 of the connection flange 2 of the water pipe 3 and the bolt insertion hole 8 of the connection flange 7, and tightened with the nut 1b. The valve is connected and fixed to the water pipe, and the water control valve for the water pipe laid is opened to fill the water pipe and the valve according to the present invention is laid by opening the valve according to the present invention. The mud and sand inside the pipe is discharged to the outside from the water discharge port 4 of the valve body 5 by water pressure. In this case, the connection between the water pipe 3 and the valve body A is at least as shown in FIGS. Two types of contact There is a form.

FIG. 15 shows a case of a detachable type (deformed pipe type). At the time of connection, first, a fixing ring body provided annularly on the inner peripheral surface 3a of the connection port of the water pipe 3 is fitted. The fixing ring 13 is fitted into the groove 15.
This fitting means is provided with a divided portion 13a of the fixing ring body 13.
11 and 12, for example, locking appropriate lock members 21, 21 of a squeezing device 20 such as a bench shown in FIGS. 11 and 12 to fix the ring member 13. The outer periphery of the fixing ring 13 is narrowed by narrowing the both ends of each other toward each other, and is fitted in the fixing ring body fitting groove 15 in that state. The parts 21 and 21 are fixed to the fixing ring 13
Then, the fixing ring body 13 returns to its original shape (the state shown in FIG. 8) by self-elasticity and is fitted into the fixing ring body fitting groove 15.

Next, the buffer ring 12 is pressed by an appropriate pushing tool (not shown) so that the tapered surface 12b of the buffer ring 12 comes into contact with the tapered surface 13b of the fixing ring 13 as shown in FIG.
Push in as shown in 3. In this case, the buffer ring 1
2 has an inclined cutting portion 12a, 12a in a part thereof, so that the pushing can be easily performed, and the cutting portion 12a, 12a is a divided portion of the fixing ring body 13. It is pushed so as not to be in the same position as 13a. In this state, a predetermined lubricant is applied to the outer peripheral surface 6a of the insertion pipe portion 6 in advance, and the insertion pipe portion 6 of the valve body A in which the sealing rubber ring 11 is fitted and attached is connected to the connection port of the water pipe 3. And a bolt 1a is inserted into the bolt hole 1 of the connecting flange 2 of the water pipe 3 and the bolt insertion hole 8 of the connecting flange 7, and is tightened and fixed by a nut 1b.

FIG. 14 shows a case of a detachable type (straight pipe type).
The ring-shaped liner body 14 is inserted so as to be interposed between the inner peripheral surface 3a of the connection port portion and the distal end surface 6b of the insertion pipe portion 6 of the valve body A. Thereafter, the same as the case of FIG. Then, the connection between the water pipe 3 and the valve body A is fixed.

In order to release the connection shown in FIGS. 13 and 14, first, the bolt 1a and the nut 1b
Is released, and then the bolt 10 screwed into the bolt screw hole 9 of the joining flange 7 is pushed around in the tightening direction so that the tip of the bolt 10 comes into contact with the connection opening edge of the water pipe 3. When pushed, the tip of the bolt 10 acts so as to push the rim of the water pipe 3, whereby the connection between the valve body A and the water pipe 3 is released, and the valve body A is easily disconnected from the water pipe 3. Removed.

[0017]

According to the present invention, there is provided a valve to be connected to a water pipe having a connection flange formed with a bolt hole at a periphery of the connection port, and the insertion pipe communicating with the water discharge port through the inside of the valve body. At the base of the part, a joining flange joined to the connection flange of the water pipe is provided around, and a bolt insertion hole corresponding to the bolt hole and a bolt screw hole are provided at the joining flange. Further, in a water pipe cleaning valve in which a bolt whose tip is in contact with a connection port edge of the water pipe is screwed into the bolt screw hole, an inner peripheral surface of the connection port portion of the water pipe is provided. A rubber ring for sealing, a buffer ring, and a fixing ring were interposed in the gap between the plug and the outer peripheral surface of the insertion pipe, and the inner peripheral surface of the connection port of the water pipe and the distal end of the insertion pipe. A ring-shaped liner body is interposed in the gap between Therefore, there is an advantage that the mud sand and the like that have entered the inside of the laid water pipe can be discharged without being discharged from the water tap of each general household, and the removal from the water pipe can be easily performed. Of course, in the present invention, particularly in the gap between the inner peripheral surface of the connection port of the water pipe and the outer peripheral surface of the insertion pipe portion of the valve body, a rubber ring for sealing, a ring for buffering, a ring for fixing, Further, by interposing a ring-shaped liner body in a gap between the insertion pipe portion and the distal end portion, the water pipe and the valve body are provided.
When connecting the two types, two types of connection type, that is,
Can be used for (tube type) and (straight tube type)
At the same time, the connection between the water pipe and the valve body is ensured, the airtightness of the connection is enhanced, leak water can be reliably prevented, and mud and sand that has entered the water pipe can be reliably discharged, etc. There are various effects.

[Brief description of the drawings]

FIG. 1 is a front view of a connecting flange for attaching to a water pipe having no connecting flange according to the present invention.

FIG. 2 is a partially cutaway side view showing a state when the water pipe cleaning valve according to the present invention is connected to the female connection port of the water pipe.

FIG. 3 is a front view of the water pipe cleaning valve shown in FIG. 2;

FIG. 4 is a front view of the sealing rubber ring according to the present invention.

FIG. 5 is a cutaway side view of the same part.

FIG. 6 is a front view of a buffer ring (backup ring).

FIG. 7 is a cutaway side view of the same part.

FIG. 8 is a front view of a fixing ring (lock ring).

FIG. 9 is a cutaway side view of the same part.

FIG. 10 is a partially enlarged plan view showing a divided portion of the fixing ring body.

FIG. 11 is a front view of a drawing device of the fixing ring body.

FIG. 12 is a side view of the same.

FIG. 13 is a front view of a ring-shaped liner body.

FIG. 14 is a cutaway side view of the same part.

FIG. 15 is an explanatory cross-sectional view illustrating an example of a connection state when a ring-shaped liner body is not used.

FIG. 16 is a sectional view for explaining the same when a ring-shaped liner body is used.

FIG. 17 is a partially omitted front view showing a flexible pipe used for a water pipe cleaning valve according to the present invention.

FIG. 18 is a front view showing a water supply device.

FIG. 19 is a partially cutaway side view showing a state when the water supply device is connected to a water pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bolt hole 2 Connection flange 3 Water pipe 3a Connection port inner peripheral surface 4 Water outlet 5 Valve main body 6 Insertion pipe portion 6a External peripheral surface 6b Tip surface 7 Joint flange 8 Bolt insertion hole 9 Bolt screw hole 10 Bolt 11 Rubber ring for sealing Body 12 Buffer ring body 12a Cutting portion 12b Tapered surface 13 Fixing ring body 13a Dividing portion 13b Tapered surface 13c Squeezing device locking groove 14 Ring-shaped liner body 15 Connection opening 16 Pipe 17 Water pipe 18 Water supply device 19 Connection pipe Reference Signs List 20 squeezing device 21 locking part A valve body

Claims (2)

(57) [Claims] 1. A valve connected to a water pipe having a connection flange formed with a bolt hole at a periphery of a connection port portion, wherein a base of an insertion pipe portion communicating with a water discharge port through a valve body is provided. A joining flange to be joined to the connection flange of the water pipe is provided around the joint flange, and a bolt insertion hole corresponding to the bolt hole and a bolt screw hole are provided in the joining flange. In a water pipe cleaning valve in which a bolt whose tip is in contact with a connection port edge of the water pipe is screwed into the bolt screw hole, an inner peripheral surface of the connection port portion of the water pipe and an outer circumference of the insertion pipe portion are provided. A water pipe cleaning valve, characterized in that a rubber ring for sealing, a ring for buffering, and a ring for fixing are interposed in a gap with a surface. 2. A connection flange formed with a bolt hole is connected to a periphery of a connection port.
A valve connected to a water pipe at an edge, comprising a spout
Pipe section that communicates with the inside of the valve body
At the base of the joint flange, which is joined to the connection flange of the water pipe,
Bolts corresponding to the bolt holes
Through holes are drilled and bolt screw holes are drilled.
The end of the bolt screw hole is
Of the water pipe in which the bolts abutting against the connection
In the cleaning valve, the inner peripheral surface of the connection port of the water pipe
In the gap with the outer peripheral surface of the insertion pipe portion, a seal
With a ring, buffer ring, and fixing ring
One said in the gap of the connection port inner peripheral surface of the water pipe and the insertion pipe portion distal end face, cleaning valve water pipes, characterized in that interposed a ring-shaped liner body.