JPH05231557A - Valve device - Google Patents

Abstract

PURPOSE:To provide a valve device with which a flange is not provided, and for which a bolt and a nut are not directly applied for fixing by providing an annular recessed groove, which is in proximity to the end part of a primary and/or secondary side cylindrical openings, and by which the outer wall of the opening is surrounded. CONSTITUTION:A primary side opening 2 and a secondary side opening 3 have tubular forms with no flanges, and an annular recessed groove 4 for receiving the peripheral end of a tightening type coupling U is provided on the outer side wall close to the end part of the pipe. The tightening type coupling U is used for connecting a water supply pipe and a valve device. The tightening type coupling U has an annular form provided with a rubber ring R for retaining liquid-tightness, that is divided into two, which are integrated together by two pairs of bolts (b) and nuts (n) provided on the tangential direction of the divided annular body. When the bolt (b) is tightened by the nut (n), the annular bodies are moved along a slope V, while they are rubbed with each other, in the direction where the diameter of the annular body is contracted.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a novel valve device for controlling pressurized water.

[0002]

2. Description of the Related Art As shown in FIG. 7, a primary side (water inlet) x
And a simultaneous opening valve A, a sluice valve B, etc. having openings on the secondary side (outlet) y, etc. are known, and when fixing these valve devices to the water pipe C, the water pipe C and these valves A method is adopted in which a flange portion f installed at an end of the device is faced with each other, packing is performed between the two flange portions, and then the flange portion f is fixed to each other by a bolt b and a nut n. ..

The flange portion f is a brim-shaped disk which is provided at the end of the opening at a right angle and projects radially, and the bolts b and nuts n are fixed by utilizing the through holes formed in the disk. Several kinds of through holes are prepared depending on the diameter of the opening. For example, in the case of a general valve device having a diameter of the opening of 50 mm and a disk of the flange of 155 mm and a thickness of 20 mm, the disk is A total of four holes are drilled at 90 degree intervals from each other.

[0004]

Since the valve device as described above is made of cast iron, the weight of the valve device itself is large. For example, such a valve device is used for fire extinguishing equipment such as a car parking lot. In this case, flange f is attached to the primary side of the simultaneous release valve A.
It is necessary to fix the sluice valve B by using, and if necessary, also to fix the stop valve on the secondary side. These two or three valve devices are integrated, and the pressurized water is sent. Must be fixed to the water pipe C.

The weight of such an assembly of valve devices weighs several tens of kilograms, and it is very difficult to fix the assembly of the valve device to a necessary portion of the pipe path of the water supply pipe C.

Further, a flange f for fixing the valve device
Is laterally projected from the tubular body that is the opening of the primary side x and the secondary side y, which complicates the process when manufacturing the valve device main body, and allows the large protruding portion to be efficiently transported, It is also a cause of hindering work such as storage and storage.

Further, the existence of the flange f itself causes the weight of the valve device to increase, and in the present situation, there is only the existence reason that it is necessary for fixing the valve device. If is present, it is preferable not to install the flange.

Further, when the disk-shaped flange f is used as a clue for fixing with the bolt b and the nut n as described above, the fixing angle with another water pipe C or the valve device is such that the bolt b is inserted. It is greatly restricted by the position of the through holes that are formed. For example, when four through holes are formed in the flange f at 90-degree intervals, the change of the fixed angle is at least 90.
You can only change the degree.

However, in order to conveniently operate the rotary handle H or lever attached to the valve device, the place where the valve device is installed, the positional relationship with the adjacent wall surface, etc. It is desirable that the fixed angle can be arbitrarily determined by the positional relationship with the types of pipes and the like.

The object of the present invention is to provide a valve device which basically does not have the flange f and which does not directly act the bolt b and the nut n for fixing, but the fixing which does not directly act the bolt b and the nut n. In most cases, the type that allows the valve device to be replaced by any means cannot prevent the valve device from turning at the mounting position, and although it does not leak water, the valve device will hang down when it slides due to its own weight supporting the water pipe. It often turns into.

[0011]

In the present invention, the connecting flange f is removed from the water pipe and the valve device, and a tightening type coupling U is used instead of the direct fixing with the bolt b and the nut n. As shown in FIGS. 4 and 5, the tightening type coupling U is a ring body provided with a rubber ring R for maintaining liquid tightness of a portion connected by the coupling.

The ring body is divided into two parts, both of which are two sets of a bolt b and a nut n installed in the tangential direction of the ring body.
The ring is divided by two slopes V symmetrical to each other with a certain inclination with respect to the bolt b. When the bolt b is tightened with the nut n, the ring is divided into two parts. Move along the slope V while rubbing against each other,
Move in the direction to reduce the diameter of the annulus.

In FIG. 6, a part of the pipes P1 and P2 connected by a tightening type coupling is partially shown in cross section. When the nut n is tightened from this state, the ring body is inclined by a slope V. Along the arrow as shown by the arrow to press the inner rubber ring R and press the two pipes P1 and P2 from above and below in the figure, so that the edge of the ring body becomes the ring-shaped groove G of the pipe body. It also prevents the tube body from moving in the horizontal direction in the figure when it is recessed.

By using such a tightening type coupling, the connecting flange is completely removed,
A valve device having a novel structure can be obtained. However, in order to effectively use a tightening type coupling, some processing is required to ensure that the edge of the coupling annulus can hold the valve device.

Such processing is to install a ring-shaped concave groove around the outer wall of the valve device near the opening of the valve device to which the coupling is mounted by casting, rolling or cutting.

By performing such processing, the flange for connection can be removed from the conventional valve device, which simplifies the manufacturing process, reduces the weight, eliminates the protruding portion, simplifies the mounting work, and the mounting angle. Liberalization and so on are achieved.

[0017]

Embodiments of the present invention will be described with reference to the drawings. Figure 1
Is a simultaneous opening valve 1 to which the present invention is applied. The present invention can be applied to any valve device or water supply pipe, but as an example thereof, the simultaneous open valve 1 will be illustrated first.

The internal structure of the valve device may be of any type as long as it is connected to another device to perform its function. The simultaneous opening valve 1 used for the description has openings on the primary side 2 and the secondary side 3, both of which are tightened coupling U.
It is fixed in the form.

The openings on the primary side 2 and the secondary side 3 are tubular without a flange, and a ring-shaped groove 4 for receiving the peripheral side edge of the tightening type coupling U is provided on the outer wall near the end of the tube. Has been done. The ring-shaped concave groove 4 circles the outer wall of the tube in an annular shape, and its depth and width are substantially uniform. The ring-shaped concave groove 4 can be formed by rolling or casting in addition to the method of cutting and installing the finished product of the valve device 1 main body.

FIG. 2 shows an example in which the present invention is applied to the sluice valve 5, and the sluice valve 5 has openings on the primary side 2 and the secondary side 3 as in the case of the simultaneous opening valve 1. And their openings are also tubular with no flanges and are provided with ring-shaped recesses 4 on the outer wall near the ends of the tubes for receiving the peripheral edges of the tightening coupling U. The ring-shaped concave groove 4 circles the outer wall of the tube in an annular shape, and its depth and width are substantially uniform.

1 and 2, reference numeral 6 denotes a valve rod for controlling an internal valve device. In the simultaneous opening valve 1 shown in FIG. 1, an appropriate lever is attached to the valve rod 6 to operate it. In the sluice valve 5, a handle 7 for turning is attached to a valve rod 6.

FIG. 3 shows an embodiment in which the simultaneous opening valve 1 and the sluice valve 5 shown in FIGS. 1 and 2 are incorporated in the path of the pipe, and the secondary side of the sluice valve 5 is shown. 3 faces the primary side 2 of the simultaneous opening valve 1, and the water supply pipe adapter P1 is also provided on the primary side 2 of the partition valve 5 and the secondary side 3 of the simultaneous opening valve 1.
The water pipe adapter P2 faces the.

On the outer wall of the adapters P1 and P2 near the ends of the openings facing the valves 1 and 5, a ring-shaped groove 4 is formed around the outer wall, as in the case of the valve. In addition, a taper portion 8 is installed at the other end of each of the adapters P1 and P2, and these taper portions 8 are abutted against a taper portion (not shown) also provided in the existing pipe, It is used to fix the taper parts by welding.

Water supply pipe adapter P arranged as shown in FIG.
1, gate valve 5, simultaneous open valve 1 and water pipe adapter P
2 face the openings of adjacent devices,
As shown in the drawing, the ring-shaped recessed grooves 4 of the respective openings are juxtaposed.

To fix these four parts together,
The tightening type coupling U described above is used, but the fixing form is as described in FIG. At the time of fixing, for example, the coupling U is tightened up to a temporary tightening degree, the water supply pipe adapter P1 and the water supply pipe adapter P2 are welded to the pipe path, and then the simultaneous release valve 1 and the sluice valve 5 are connected to each other. It suffices to rotate the coupling U while fitting the coupling U to a position where the valve rod 6 can be easily operated, completely tighten all the couplings U at the most appropriate position, and fix the four parts integrally.

In this case, the taper portion 8 installed on each adapter is necessary for incorporating the valve device according to the present invention into the path of the existing existing pipe. If the design corresponding to is made,
All connection and fixing can be performed by the coupling U without using such a taper portion 8.

[0027]

According to the present invention, since a valve device having a reduced weight can be obtained, the work can be greatly rationalized in manufacturing, transportation, storage and the like, and the hoisting weight can be small at the time of mounting work. There is the effect that the number of steps can be simplified and a valve device that can arbitrarily adjust the mounting angle of the valve device can be obtained.

[Brief description of drawings]

FIG. 1 is a front view of a simultaneous opening valve according to the present invention.

FIG. 2 is a front view of a sluice valve according to the present invention.

FIG. 3 is a front view showing an arrangement in the case where a simultaneous opening valve and a sluice valve according to the present invention are incorporated in a pipe path.

FIG. 4 is a perspective view of a lock-up type coupling used to secure a valve device according to the present invention.

5 is a side view of the coupling shown in FIG.

FIG. 6 is a front view partially including a cross section in a state where two pipes are connected and fixed by the coupling shown in FIG.

FIG. 7 is a front view showing a connected and fixed state of a valve device according to a conventional type.

[Explanation of symbols]

 1 Simultaneous open valve 2 Primary side 3 Secondary side 4 Ring groove 5 Gate valve 6 Valve rod 7 Handle 8 Tapered part

Claims (1)

[Claims] 1. A valve device having a valve body for controlling conduction and cutoff of pressurized water, comprising: a primary side and / or a secondary side; and one of the openings, the opening being close to the end of the cylindrical opening. A valve device having a ring-shaped groove that surrounds an outer side wall.