JP2001208223A - Discharge vale - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a discharge valve for discharging fluid flowing through a fluid pipeline without leaving the fluid in the fluid pipeline line, and quickly, easily connectable with the fluid pipeline. SOLUTION: A valve element 11 is slidably installed in a valve case 2 having a discharge port 7 between an inlet 6 and an outlet 8, the valve element 11 is slid on a valve seat ring 9 to separate a seat disc attached to the valve element, fluid flowing through fluid pipe is allowed to flow and discharged. A projection is installed in the connection part of the fluid pipeline and a discharge valve, and by fastening the projection and a clamp ring covered on the projection, the fluid pipeline and discharge valve are quickly, easily connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve mounted on a fluid piping system such as water to discharge a fluid passing through the valve.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a drain pipe is attached to a fluid piping system such as water, and a valve 18 or a cap is attached to the drain pipe to discharge a fluid. Is discharged by removing the cap.

[0003]

In the above-mentioned conventional fluid piping system, the discharge piping is attached below the piping system so that the fluid is easily discharged and the fluid does not remain at the bottom inside the piping system. Fluid remains in the discharge piping. If the fluid exists inside the piping system in a cold region, there is a problem that the fluid freezes due to cold and damages the piping. In addition, the connection between the conventional fluid piping system and the discharge pipe is made by connecting the screw connection and the flange by tightening several bolts, so it takes a long time to connect, and work in cold regions There was a problem that was difficult.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a discharge valve having a structure capable of discharging a fluid without leaving a fluid piping system and performing a connection operation to the piping system in a short time.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a valve body having inlets and outlets on the left and right sides of a valve box, a discharge port provided therebetween, and the outlet of the valve box can be moved up and down. And a convex part is provided on the outer periphery of the connection end between the valve box and the pipe, and a fastening is provided with a clamp ring that covers the convex part provided at the end of the pipe, and packing is mounted in the valve box. This is a discharge valve that seals with the outer peripheral surface of the pipe. When the outlet of the valve box is closed in the fluid piping system with a vertically operable valve, the fluid flows from the inlet to the outlet, and when the valve is opened, the fluid is discharged to the outlet. The discharge port is provided in the lower part of the valve box, and the discharge pipe is not required. Therefore, the discharge valve is a discharge valve that discharges all the fluid without remaining in the discharge pipe portion, and the connection at the time of mounting in the fluid piping system is performed by projecting the outer periphery of the end of the piping system connection valve box of the discharge valve and the valve. The inner peripheral part of the box is provided with a packing mounting recess. A clamp ring that has the same convex portion as the outer peripheral portion of the valve box on the outer periphery of the pipe connection portion, matches the convex portion end face with the valve box end portion having the convex portion, and opens and closes a fulcrum with a pin provided with a concave portion covering the combined convex portion. Performed by

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of the present invention. In FIG. 1, a convex portion 3 is provided on an outer periphery of a connection end of a valve box 2 connected to a fluid piping system 1, and a concave portion 5 for attaching a packing 4 is provided on an inner peripheral portion, and an inlet 6, an outlet 7 and an outlet 8 are formed. The sheet disc 1 is provided with a valve seat ring 9 at the discharge port and opposed to the discharge port 7.
The valve body 11 with 0 is arranged. The valve body 11 is disposed so as to be slidable in the vertical direction by an upper valve rod 12. The fluid piping system 1 has a convex portion 13 on the outer peripheral portion and a packing 4 fitted and mounted on the inner peripheral portion of the valve box 2 similarly to the connection end of the valve box 2.
And a piping section that comes into contact with. The fluid piping system 1 and the valve box 2 are connected to each other by a clamp ring 16 which clamps a pin 15 provided with a concave portion 14 for covering the projection 13 on the outer periphery of the fluid piping system 1 and the projection 3 on the outer periphery of the valve box 2 at a fulcrum. Connecting. At this time, one clamp tightening bolt 17 for holding the connection at a position other than the pin 15 is attached to the clamp ring 16.
I have a book. FIG. 1 shows a connection between a fluid piping system and a valve and a valve body 11.
1 shows a state in which the sheet disk 10 provided with the valve contacts the valve seat ring 9 and the discharge port 7 is closed.

When the fluid flows through the fluid piping system 1, the fluid flows from the inlet 6 to the outlet 8 when the sheet disk 10 comes into contact with the valve seat ring 9 and the discharge port 7 is closed. Can flow. When the valve stem 12 and the sheet disk 10 are slid by the valve stem 12 and the discharge port is opened from the valve seat ring 9, the fluid flows from the inlet 6 and the outlet 8 to the discharge port 7 and is discharged. At this time, since the discharge port is provided in the valve box 2 so as to be located at the bottom of the fluid piping system, a discharge pipe is not required, and all the fluid is discharged without leaving the pipe. Rust, mortar, sand, and pebbles in the fluid piping system are also discharged together with the discharged fluid.

In FIG. 1, the valve body 11 provided with the sheet disk 10 is arranged inside the valve box 2, but may be arranged outside the valve box 2.

The convex portion 3 of the valve box 2 and the convex portion 13 of the fluid piping system 1
With the packing 4 attached to the concave portion 5 in the inner peripheral portion of the valve box 2.
A clamp ring 16 capable of clamping the convex portion 3 and the convex portion 13 by fitting the outer peripheral portion of the fluid piping system 1 with the outer peripheral portion so as to prevent the fluid flowing in the pipeline from leaking to the outside and to align them. The bolt 1 provided on the clamp ring 16 and covered together by the concave portion 14 provided
7, the fluid piping system 1 and the valve box 2 are firmly connected.

The shapes of the convex portion of the valve box 2 and the convex portion of the fluid piping system are square, trapezoidal, semicircular, triangular, inverted trapezoidal as shown in FIGS. Any shape is possible. Also, bolt 1 to tighten clamp ring 16
Although 7 is used, it is also possible to use a tightening clip using a spring other than the bolt 17 to sufficiently tighten the clamp ring 16.

[0012]

As described above, the discharge valve of the present invention is
A compact valve that can be easily connected to the fluid piping system in a short time due to the convex portion of the connection end, and can discharge all the fluid in the fluid piping system by mounting the discharge valve of the present invention in the fluid piping system. It can be.

[Brief description of the drawings]

FIG. 1 is a sectional view of a discharge valve in a state of being connected to a fluid piping system according to an embodiment of the present invention.

FIG. 2 is a piping front view of a discharge valve in a state of connection with a fluid piping system according to an embodiment of the present invention.

FIG. 3 is a diagram showing a shape of a convex portion of a discharge valve connected to a fluid pipe.

FIG. 4 is a sectional view of a pipe showing a fluid pipe system provided with a conventional discharge pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid piping system 2 Valve box 3 Outer peripheral convex part of valve box connection end 4 Packing 5 Valve box packing mounting recess 6 Inlet 7 Outlet 8 Outlet 9 Valve seat ring 10 Sheet disk 11 Valve body 12 Valve rod 13 Fluid piping Outer circumference convex part of system connection part 14 Ring concave part 15 Pin 16 Clamp ring 17 Bolt 18 Valve

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shunsuke Kondo 2-2-2-2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company (72) Inventor Nomoto, etc. 2-2-2-2 Yoyogi, Shibuya-ku, Tokyo No. Tohoku Japan Railway Company (72) Inventor Hiroshi Sakagami Niigata Pref., Niigata Pref. DD03 DD12 DD23 DD43 FF11 FF17 GG13

Claims (2)

[Claims] An outlet opening / closing device for closing an outlet of a valve box with a vertically movable valve body is provided between the inlet and the outlet on the left and right sides of the valve box. The discharge valve is characterized in that when the discharge port is opened by the valve body, the fluid is discharged to the discharge port. 2. The connection between the valve box and the pipe has a convex portion on the outer periphery of the connection end and is fastened with a clamp ring covering the convex portion provided at the end of the pipe, and a packing is mounted in the valve box to form a pipe. 2. The discharge valve according to claim 1, wherein the discharge valve seals with an end outer peripheral surface.