KR100588329B1 - Coupling pipe to connecting which reducing valve and water meter are in one body - Google Patents

Abstract

The present invention relates to a joint pipe body in which the pressure reducing valve and the water meter are integrally connected, and the outlet side female thread part of the pressure reducing valve (2) installed coaxially between the supply side water supply pipe (P1) and the water supply side water supply pipe (P2) ( In order to integrally connect 2a) and the inlet male screw portion 4a on the water meter 4 side, a male screw portion 12 is formed on one side of the body 11 and penetrated from one side to be connected to the water meter 4. In the joint pipe body (10) provided with the union joint (13) for fastening the side male thread parts (4a), the O-ring (14) is inserted at the point where the male threaded part (12) of the joint pipe part (10) ends. Is installed, the hexagonal jaw (11-1) for fastening to the outer diameter of the body 11 is integrally formed, the female screw 15 is formed on the other end side inner diameter in which the male screw portion 12 is formed, the female screw portion 15 Supporting jaw to prevent separation of the union joint 13 penetrated to the outer diameter of the body 11 is fastened to While the 16 is fastened and installed, the packing 17 is disposed on one side of the support jaw member 16 to be in close contact with the end of the male threaded portion 4a of the water meter 4 to be connected. The connection of the fitting pipe connected between the pressure reducing valve and the water meter is not necessary to connect the pressure reducing valve and the water meter between the supply and receiving water supply pipes due to the airtightness of the O-ring and packing provided without using Teflon as in the prior art. By not having the advantage of the leakage prevention effect is superior to the conventional tightening method by the Teflon treatment, there is an effect that can improve the joint workability in a narrow space, in particular water meter installation according to the uniformity of the fastening.

Pressure Reducing Valves, Water Meters, Fittings, O-Rings, Packings

Description

Coupling pipe to connecting which reducing valve and water meter are in one body}

1 is a front view showing a state in which a pressure reducing valve and a water meter are installed from a supply side and a consumer side water supply pipe;

Figure 2 is a longitudinal cross-sectional view illustrating a state connecting the pressure reducing valve and the water meter as a joint pipe in the prior art,

3 is a perspective view showing a joint pipe according to the present invention;

4 is a perspective view showing the components of the joint body according to the present invention separately;

Figure 5 is a longitudinal cross-sectional view illustrating a connection state between the pressure reducing valve and the water meter using a joint pipe body according to the present invention,

Figure 6 is a longitudinal sectional view showing a state in which a pressure reducing valve and a water meter according to the present invention is connected.

◀ Explanation of symbols for the main parts of the drawing ▶

1,3 connector 2: pressure reducing valve

4: water meter 10: joint pipe

11: body 12: male thread

13: union joint 14,18: O-ring

15: female threaded portion 16: support jaw member

17: Packing

The present invention relates to a joint pipe body for connecting the pressure reducing valve and the water meter as an integrated body, and more specifically, to improve the joint pipe for connecting the water meter and the pressure reducing valve is installed between the supply side and the water supply side water supply pipe To improve the workability, and to ensure a stable connection work without changing the position of the supply side and the consumer side water supply pipe according to the connection installation of the joint pipe.

Generally, it is installed between a water supply pipe and a water supply pipe of a water meter, so that water consumption is measured while supplying water from a pressurization station of a water purification plant to a faucet of a residential building or an office building. A pressure reducing valve is installed for the purpose of lowering the water pressure supplied at a high pressure to a constant pressure.

Conventional installation of a pressure reducing valve is widely used in the field of flow control in such a function as to allow desired pressure control when adjusting the pressure of general groundwater pump and apartment type drain pump.

In connection with the present invention, the connection with the water meter side also serves to protect the water meter itself by preventing the high-pressure hydraulic pressure acting on the water meter, which helps to guide accurate metering according to water usage. The state is also a major part.

Looking at the configuration according to the connection installation of the water meter and the pressure reducing valve, as shown in the accompanying FIG. 1, in the supply side water supply pipe (P1) and the water supply side water supply pipe (P2) which is buried from the ground and standing upright, A water angle valve 5 is connected from the supply side water supply pipe P1, and then a pressure reducing valve 2, a fitting pipe body 10, and a water meter 4 are connected in this order, and water passing through the water meter 4 is Water is supplied through the water supply pipe P2.

In addition, the portion perpendicular to the direction in which the installation is made of the fastening of the elbow and the separate connector (1) (3).

The connection of the joint pipe body 10 between the pressure reducing valve 2 and the water meter 4 is connected to the pressure reducing valve 2 between the supply side water supply pipe P1 and the water supply side water supply pipe P2 that are already installed vertically from the ground. Both ends are fastened to the female screw portion 2a and the male screw portion 4a on the side of the water meter 4.

A male screw portion 12 is formed at one end of the body 11 of the fitting pipe body 10 for fastening to the female screw portion 2a at the pressure reducing valve 2 side and the male screw portion 4a at the water meter 4. The other end is provided with a step tuck (12a), it is supported from the male tread (12) side from the step twelve (12a), the union joint 13 for fastening with the connection object is provided.

The male thread portion 12 of the joint pipe body 10 and the male thread portion 4a of the water meter 4 have a leak-proof tape T which is usually used to prevent leakage due to high pressure when they are fastened to each other a predetermined number of times. It is a structure connected by coercive fastening in a wound state.

In the connection by the Teflon treatment as described above, the length (depth) of the coupling pipe body 10 is negligible. For this reason, the forceful fastening according to the degree of winding of the leak prevention tape changes the length on the horizontal line where the pressure reducing valve 2 and the water meter 4 are installed on the line where the supply side water supply pipe and the consumer side water supply pipe are vertically positioned. That is, the direction in which the pressure reducing valve, the water meter, and the fitting pipe body are interconnected between the supply side water supply pipe P1 and the water supply side water supply pipe P2 between the supply pipe water supply pipe P1 and the water supply pipe P2 is widened or narrowed. The connection pipe (1) (3), the angle valve (5), the elbows, such as being the right angle to the fastening point is stressed.

The stress received from the above point of view affects the fastening point of the angle valve connected from the supply side water supply line and the water supply side water supply line, and the like can be derived from the leakage, and to prevent leakage by winding the leakage prevention tape as described above In case of replacing water meter or pressure reducing valve installed in a relatively small space, replacement workability is inferior and it is not practical for water treatment.

The present invention has been made to solve the above-mentioned conventional problems, improve the workability for the joint operation by improving the joint pipe connecting the water meter and the pressure reducing valve is installed between the supply side and the consumer side water supply pipe The purpose is to ensure a stable connection work without changing the position of the supply side and the receiving side water supply pipe according to the connection installation of the joint pipe body.

According to the present invention for achieving the above object, on the one side of the body to integrally interconnect the outlet female screw portion and the inlet male screw portion of the water meter side of the pressure reducing valve which is installed coaxially between the supply side water supply pipe and the receiving water supply pipe In a joint pipe body having a male thread portion and a union joint for penetrating from one side and fastening a male thread portion on the water meter side to be connected, an O-ring is inserted and installed at a point where the male thread portion fastening point of the joint pipe ends. Hexagonal jaw for fastening is formed integrally, female screw is formed in the inner diameter of the other end formed with the male thread part, while the support jaw member is fastened and installed to prevent detachment of the union joint penetrated to the outer diameter of the body by being fastened to the female screw part. Put the packing on one side of the jaw member and the male thread end of the water meter It is characterized in that it is installed in close contact.

Hereinafter, with reference to the accompanying Figures 3 to 6 according to the present invention in more detail.

Attached Figure 3 is a perspective view showing a fitting pipe according to the present invention, Figure 4 is a perspective view showing a separate component of the fitting pipe according to the invention, Figure 5 is a pressure reducing valve using the fitting pipe according to the invention Figure 6 is a longitudinal cross-sectional view illustrating a connection state with a water meter, Figure 6 is a longitudinal cross-sectional view showing a state in which the pressure reducing valve and the water meter in accordance with the present invention.

The outlet female threaded portion 2a of the pressure reducing valve 2 and the inlet male threaded portion 4a on the water meter 4 side of the pressure reducing valve 2, which are installed coaxially between the supply side water supply pipe P1 and the water supply side water supply pipe P2, are integrated. A male thread part 12 is formed at one side of the body 11 to interconnect with each other, and a joint body 13 is provided with a union joint 13 penetrating from one side to fasten the male thread part 4a at the side of the water meter (4). 10),

The O-ring 14 is inserted and installed at the point where the male threaded portion 12 of the joint pipe body 10 is fastened, and the hexagonal jaw 11-1 for fastening to the outer diameter of the body 11 is integrally formed. A female screw 15 is formed at the other end inner diameter at which the male thread part 12 is formed, and is supported by the female thread part 15 to prevent separation of the union joint 13 penetrating the outer diameter of the body 11. While the 16 is fastened and installed, the packing 17 is placed on one side of the support jaw member 16 to be in close contact with the end of the male threaded portion 4a of the water meter 4 to be connected.

The support jaw member 16 is hollow and has an external thread 16a formed on the outer circumference thereof to be fastened to the female screw 15 of the fitting tube 10, and the step 16b supporting the union joint 13 is formed. Is formed, and the O-ring 18 is inserted and installed at a point where the stepped portion 16b and the male screw 16a are adjacent to each other. Is formed.

In the drawings, reference numerals 1 and 3 denote connection bodies, and 5 denotes a water angle valve.

Referring to the operation and effect according to the connection installation of the pressure reducing valve and the water meter using the joint pipe body of the present invention configured as described above are as follows.

First, the water supply meter (P1) and the supply side water supply pipe (P2) buried from the ground from the pressurizing station is installed in the installed state of the water-side water supply pipe (P2), the bar is installed for the purpose of maintaining a constant water pressure of the water supplied The pressure reducing valve 2 is used to be connected and installed through the joint pipe body 10 together with each of the connecting pipe bodies 1 and 3 on the same axis on which the water meter 4 is installed.

In fastening the male threaded portion 12 of the fitting pipe body 10 to the female threaded portion 2a of the outlet side of the pressure reducing valve 2, a screw provided at the point where the tightening point of the male threaded portion 12 ends at the same time as the screw body. The ring 14 blocks leakage from the pressure reducing valve 2. In this case, the coupling of the male screw part 12 of the fitting pipe body 10 is performed by using a tool such as a spanner, a pipe wrench, etc. from the hexagonal jaw 11-1 formed on the body 11.

The body 11 penetrates the union joint 13 from the body 11, which is an opposite side of the fitting pipe body 10, and fastens the support jaw member 16 to the female screw 15 formed in the inner diameter of the union joint 13. To prevent the departure from the body (11).

The fastening of the support jaw member 16 can be more securely fastened to the support jaw member 16 in a state in which a wrench corresponding to each groove 16c formed in the inner diameter is inserted.

In fastening the male screw portion 16a of the support jaw member 16, another o-ring 14 installed at a point where the male screw portion 16a and the stepped portion 16b are adjacent to each other is a support jaw member 16. ) Serves to maintain the airtightness with the body (11) side of the fitting pipe body (11).

As described above, the union joint 13 is supported by the step 16b of the support jaw member 16, and the male thread part 4a and the step 16b of the water meter 4 as the connection target correspond to each other. The packing 17 positioned from one side of the step 16b is fastened in a form in which the packing 17 is in close contact with the end face on which the male thread portion 4a on the water meter 4 is formed, thereby preventing leakage of water pressure.

As a result, the joint pipe body 10 according to the present invention has a relative fastening degree between the male screw part 12 of the joint pipe body 10 and the union joint 13 installed through the body 11, and the supply side water supply pipe P1. And the supply-side water supply pipe P1 and the water-side side, since the fastening is performed at a corresponding degree on the same axis along the installation of each of the connecting pipe bodies 1 and 3 installed at right angles to the water-side water supply pipe P2. It is possible to maintain a stable fastening in a range that does not overload the perpendicular fastening point of the connector from the water supply pipe (P2).

This is because the connection range of the conventional joint pipe which is tightened by Teflon treatment for the purpose of preventing leakage to the male thread part is small, whereas the connection between the pressure reducing valve and the water meter is longer due to the longer installation length for each component. The stress at the connection point (elbow fastening part) of the water supply side can be relieved, and there is an advantage that can significantly reduce the leakage of the connection portion.

Therefore, even in the replacement of the pressure reducing valve or the water meter, by fastening without treating Teflon as in the prior art, the fastening property can always be kept constant without changing the fastening length of the joint pipe body.

In addition, the joint pipe body according to the present invention can improve the workability according to the installation by having the airtightness of the close portion instead of the screw portion by the installation of the O-ring and the packing, rather than the Teflon treatment as in the prior art.

In particular, the use of the joint pipe body according to the present invention has the advantage that it is convenient to work in a relatively narrow space in the installation of the pressure reducing valve and the water meter to form an integral.

As described above, the present invention is the fastening of the joint pipe body connected between the pressure reducing valve and the water meter is a pressure reducing valve between the supply side and the receiving water supply pipe with the airtightness of the O-ring and packing provided without using a Teflon as in the prior art, By not overwhelming the connection of the water meter, there is an advantage of preventing leakage compared to the conventional Teflon-treated fastening method, and according to the uniformity of fastening, it is possible to improve the joint workability, especially in the narrow space where the water meter is installed. It can be effective.

Claims (2)

The outlet female threaded portion 2a of the pressure reducing valve 2 and the inlet male threaded portion 4a on the water meter 4 side of the pressure reducing valve 2, which are installed coaxially between the supply side water supply pipe P1 and the water supply side water supply pipe P2, are integrated. A male thread part 12 is formed at one side of the body 11 to interconnect with each other, and a joint body 13 is provided with a union joint 13 penetrating from one side to fasten the male thread part 4a at the side of the water meter (4). 10), The O-ring 14 is inserted and installed at the point where the male threaded portion 12 of the joint pipe body 10 is fastened, and the hexagonal jaw 11-1 for fastening to the outer diameter of the body 11 is integrally formed. A female screw 15 is formed at the other end inner diameter at which the male thread part 12 is formed, and is supported by the female thread part 15 to prevent separation of the union joint 13 penetrating the outer diameter of the body 11. 16 is fastened and installed, the pressure reducing valve, characterized in that the packing 17 is provided on one side of the support jaw member 16 to be in close contact with the end of the male threaded portion 4a of the water meter 4 side to be connected. Joint to connect the water meter with the unit 2. The support jaw member (16) according to claim 1, wherein the support jaw member (16) is hollow and has an outer thread (16a) formed therein for fastening to the female screw (15) of the fitting pipe (10), and the union joint (13). Steps 16b are formed to support the O-rings 18 at the adjacent points of the step 16b and the male screw 16a, and the grooves for guiding the hexagonal wrenches, which are fastening tools, are provided in the inner diameter. A joint pipe for connecting the pressure reducing valve and the water meter unit integrally characterized in that 16c) is formed at equal intervals.

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