JP3772074B2 - Header with water stop valve - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a header for supplying water and hot water to each mixing faucet attached to a kitchen, a washroom, a bathroom, etc. in a house.
[0002]
[Prior art]
With piping using a header, even if each mixing faucet attached to the kitchen, wash basin, bathtub, etc. is used at the same time, a sufficient water discharge amount is guaranteed regardless of the location of the water supply or hot water supply location. A known header is shown in FIG. 1 (FIG. 4 of the present application) of Japanese Patent Laid-Open No. 11-315560. Briefly describing FIG. 4, a hot water header 42 for supplying hot water from a water heater 41 connected to a water supply main 40 and a water header 43 for supplying water from the water main 40 are provided in a building. The hot water and water headers 42 and 43 are connected with water pipes 44 and 44a for supplying hot water and water to the mixing faucets 46 in the kitchen, washroom, bathroom, etc. The water pipes 44 and 44a are arranged behind the wall or under the floor. In this case, a stop cock 45 is mounted between each header 42, 43 and the water pipes 44, 44a.
[0003]
In the case of the above, there is a water stopcock between each header and the water pipe, but there is a leak point by a water flow test, pressure test etc. performed immediately after the header pipe is installed in the house. It is necessary to operate each stop cock frequently when checking or replacing and checking the mixing faucets, and many stop cocks are installed in parallel between the header and the water pipe. The protruding portion is large and large, requiring a large space for mounting the header, limiting the mounting position, and having a bad appearance.
[0004]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to make the header provided with the water stop valve compact so that it can be easily installed in a narrow place.
[0005]
[Means for Solving the Problems]
In the present invention, the header for distributing water and hot water supplied from a water supply pipe or a hot water supply pipe to a plurality of supply pipes is formed in the header, and a water passage through which the water and hot water pass is formed. A plurality of outlets are opened , and each outlet is provided with a pipe joint to which a supply pipe is connected. An opening hole is formed on the same axis so as to face each outlet. A water stop valve that opens and closes the flow path of water or hot water supplied from the water passage to each pipe joint is accommodated in each opening hole, and this water stop valve has a packing that contacts and separates a valve seat formed in the pipe joint. It consists of a valve rod provided at the tip and a guide inserted through the valve rod so as to be able to move forward and backward. The guide is screwed into the opening hole so that the tip does not protrude into the water passage, and the passage from the water passage to the pipe joint is made. The packing is in close contact with the guide when in water .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The present invention can be applied to, for example, a general house. As shown in FIG. 1, a water supply pipe 1 connected to a water supply source is provided in a room of a building, and the water supply pipe 1 is a hot water supply for heating water. It branches and connects to the vessel 2 and the water header 3.
[0007]
The water header 3 distributes the water supplied from the water supply pipe 1 to each mixing faucet 28 attached to a kitchen 25, a washroom 26, a bathroom 27, etc., which are arranged at predetermined positions in the building room. A plurality of water supply pipes 17 are mounted at predetermined intervals along the longitudinal direction. Each of the water supply pipes 17 is formed of a synthetic resin such as a polyethylene pipe and is previously disposed under the floor and behind the wall. A bellows-shaped sheath tube 18 is inserted and connected to each mixing faucet 28.
[0008]
The hot water header 3a is connected to the water heater 2 by a hot water supply pipe 19, and a plurality of hot water supply pipes 17a for distributing hot water supplied from the water heater 2 to the mixing faucets 28 are provided in the longitudinal direction. Each hot water supply pipe 17a is formed of a synthetic resin such as a polyethylene pipe, and is inserted into a bellows-like sheath pipe 18 provided in advance under the floor and behind the wall. It is connected to the mixing faucet 28.
[0009]
Each mixing faucet 28 attached to the kitchen 25, the washroom 26, the bathroom 27, etc. can discharge hot water at a temperature and flow rate set by operating the handle 29.
[0010]
As shown in the partial cross-sectional views of FIGS. 2 and 3, each of the headers 3 and 3a for water and hot water forms a horizontally long and straight water passage 4 inside, and a water supply pipe 1 or a hot water supply pipe 19 at one end. And a plurality of outlets 6 for distributing water and hot water to each mixing faucet 28 are opened at equal intervals on the side portion orthogonal to the water passage 4. A pipe joint 9 for connecting the water supply pipe 17 or the hot water supply pipe 17a to the port 6 is attached. The pipe joint 9 is formed with a first male screw portion 11 which is screwed into a female screw portion 7 formed on the inner peripheral surface of the outlet 6 at one end, and a water supply pipe 17 or a hot water supply pipe 17a at the other end. A joint body 10 having a cylindrical guide portion 13 that is externally fitted; a nut 15 that is screwed onto a second male screw portion 14 formed on the outer periphery of the joint body 10 to cover the guide portion 13; If the water supply pipe 17 or the hot water supply pipe 17a is inserted between the guide part 13 of the joint main body 10 and the nut 15, the pipe joint 9 is provided with a retaining ring 16 interposed between the guide parts 13. The first male threaded portion 11 at the tip of the joint body 10 is located on the inner peripheral side of the outlet 6 and a water stop valve seat 12 faces the water passage 4 on the tip surface. It is formed in an annular shape.
[0011]
The water stop valve 20 is provided with a water stop function and a flow rate adjusting function. The valve stem 21 is provided with a packing 22 at the tip thereof that contacts and separates the valve seat 12 of the pipe joint 9, and the valve stem 21 can be moved forward and backward. The guide 24 is screwed into an opening 8 formed on the same axis so as to face the take-out port 6, and a knob 23 attached to the rear end of the valve stem 21 is rotated in the rotation direction. If operated, the packing 22 together with the valve stem 21 moves between the guide 24 and the valve seat 12. In the water passage state shown in FIG. 2, the packing 22 is in close contact with the guide 24. In the water stop state shown in FIG. 3, the packing 22 is in close contact with the valve seat 12. In each case, the water passage 4 through which the packing 22 passes water and hot water. The packing 22 does not reduce the amount of water flow from the other supply pipes 17 and 17a.
[0012]
Therefore, normally, as shown in FIG. 2, the packing 22 is in close contact with the guide 24 so as not to obstruct the water passage 4, and water or hot water is supplied from the water passage 4 through the pipe joint 9 to each supply pipe of water and hot water. 17 and 17a are branched and supplied, but when the valve rod 21 is operated in the direction of water stop for flow rate adjustment or water stop operation, the packing 22 approaches the valve seat 12 of the pipe joint 9 to adjust the flow rate. Further, as shown in FIG. 3, the packing 22 is in close contact with the valve seat 12, the flow path from the water passage 4 to the pipe joint 9 is closed, and the water flow to the supply pipes 17, 17 a and the mixing faucet 28 is blocked. Is.
[0013]
As described above, each header 3, 3a of the present invention houses the water stop valve 20 for each pipe joint 9 that connects the supply pipes 17, 17a. Therefore, when performing a water flow test or a pressure test immediately after construction. In addition, for each mixing faucet 28, water can be stopped with the headers 3 and 3a, and the presence or absence of water leakage can be confirmed in order. Moreover, since the water stop valve 20 is accommodated in the headers 3 and 3a, the water stop valve 20 can be made compact.
[0014]
【The invention's effect】
According to the present invention, in claim 1, in a header for distributing water and hot water supplied from a water supply pipe or a hot water supply pipe to a plurality of supply pipes, a water passage through which water and hot water pass is formed. A plurality of outlets are opened , and each outlet is provided with a pipe joint to which a supply pipe is connected. An opening hole is formed on the same axis so as to face each outlet. A water stop valve that opens and closes the flow path of water or hot water supplied from the water passage to each pipe joint is accommodated in each opening hole, and this water stop valve has a packing that contacts and separates a valve seat formed in the pipe joint. It consists of a valve rod provided at the tip and a guide inserted through the valve rod so as to be able to move forward and backward. The guide is screwed into the opening hole so that the tip does not protrude into the water passage, and the passage from the water passage to the pipe joint is made. The packing was kept in close contact with the guide during water . Therefore, the header having the water stop function can be made compact, and can be easily attached even if the installation space is small. Further, the packing does not interfere with the water passage in the water passage state, and the amount of water passage does not decrease.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of header piping according to the present invention.
FIG. 2 is a partially enlarged cross-sectional view of a header in a water passage state.
FIG. 3 is a partially enlarged cross-sectional view of the header in a water-stopped state.
FIG. 4 is an explanatory diagram of a conventional technique.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water supply pipe 3 Water header 3a Hot water header 4 Water passage 6 Outlet 8 Opening hole 9 Pipe joint 17 Water supply pipe 17a Hot water supply pipe 19 Hot water supply pipe 20 Stop valve 25 Kitchen 26 Washroom 27 Bathroom 28 Mixing tap

Claims (1)

In a header for distributing water and hot water supplied from a water supply pipe or a hot water supply pipe to a plurality of supply pipes, the header is formed with a water passage through which water and hot water pass , and a plurality of branches are taken out from the water passage. mouth open, each outlet mounted pipe joint supply pipe is connected to each opening hole on the same axis and opposite the respective outlet is bored, each from water passage to the opening hole A water stop valve that opens and closes a flow path of water or hot water supplied to the pipe joint is accommodated , and the water stop valve has a valve rod having a packing at the tip thereof that contacts and separates a valve seat formed on the pipe joint, This guide consists of a guide that is inserted through the valve rod so that it can freely advance and retract. The guide is screwed into the opening so that its tip does not protrude into the water passage, and the packing closely contacts the guide when water is passed from the water passage to the pipe joint. A header with a water stop valve.

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