JP3742047B2 - Water connection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection device for a water meter for connecting a water meter in the middle of a water pipe.
[0002]
[Prior art]
Conventionally, water meters connected in the middle of water pipes need to be replaced with the passage of a defined expiration date. Therefore, a connecting device for fixing the water meter in a predetermined position is connected in the middle of the water pipe, and the water meter is connected to the connecting device in a detachable state.
As a conventional connection device, for example, a connection device for a water meter disclosed in Patent Document 1 is known. This connection device comprises a pair of connection plate portions having a connection mechanism portion and a plurality of connection rod portions for connecting a pair of connection plate portions facing each other, and a water pipe connection provided at the outer end of each connection mechanism portion A water pipe is connected to each part, and a water meter is configured to be detachable between the water meter connection parts provided at the inner ends of each connection mechanism part, and in particular, between the lower parts of the pair of connection plate parts in the horizontal direction. Connected by a pair of spaced apart lower connecting rods, and the upper connecting rods are connected between the upper portions of the lower connecting rods in the vertical direction, so that the water meter can be attached and detached smoothly and quickly. Can be done.
[0003]
However, such a conventional connection device is used when it is accommodated in a underground water meter box, and a water meter is installed in a pipe shaft or pipe space provided in an apartment house or the like that has been increasing in recent years. At that time, various pipes such as gas pipes and electrical pipes are installed in addition to the water supply pipes, so it is difficult to apply in the limited space, and a water meter is connected directly to the water supply pipes. ing. Moreover, in such a case, when re-installing the existing water meter, it is difficult to work in the limited space.
[0004]
Thus, the example actually used by connecting a water meter directly to the water supply pipe is shown in FIG. A water pipe 103 piped in the building 10 is branched into a branch pipe 102, and a water meter 100 is connected to the branch pipe 102 via a connection pipe 101a. The water meter 100 is connected to the branch pipe 202 via the connection pipe 101b. The front branch pipe 102 is provided with a stop cock 115 up to the water meter 100. Connection pipes 101a and 101b are used for connection of the water meter, branch pipes 102 and 202 are connected to one end of each of the connection pipes 101a and 101b, and water pipes are connected to the other end by connection nuts 105a and 105b. 100 is attached. Further, support pipes 104a and 104b are provided in the connection pipes 101a and 101b in the vicinity where the water meter 100 is installed, and the water meter 100 is maintained so as to be fixed at a predetermined position.
[0005]
[Patent Document 1]
Japanese Patent No. 2903388 (see Examples and Drawings)
[0006]
[Problems to be solved by the invention]
However, when connecting a water meter directly to such a water supply pipe and reconnecting it for replacement, various pipes such as gas pipes and electrical pipes are installed in addition to the water supply pipe. It is difficult to work in the limited space.
When replacing the water meter, various stresses are applied to the existing piping, and if the water meter is removed from the existing piping, the piping at the location where it will be re-installed will expand, narrow, or twist easily. There was a problem that it was difficult to re-install. Furthermore, the water meter has directionality, and both ends of the water meter have an upstream end portion and a downstream end portion, and each end portion is correctly arranged on the upstream side and the downstream side, respectively. It was difficult to work in a limited space.
This invention is made | formed by such a situation, The length (span) of the installation place of the water meter installed on the ground can be kept constant, and a pipe shift does not arise in the case of re-installation. Thus, it is possible to provide a connecting device for a water meter that can prevent the reverse mounting of the water meter and can easily perform accurate re-installation.
[0007]
[Means for Solving the Problems]
In order to solve such a problem, the present invention combines a pair of connecting portions constituting a connecting device with a connecting pipe, and one of the pair of connecting portions is connected to a water amount meter constituting a connecting portion. The part is composed of a holder for holding one end of the water meter and a detachable nut, and the detachable nut is composed of a detachable nut for advancing and retracting the holder to fix the water meter. Another feature of the connecting pipe is that a pedestal for preventing and fixing the water meter is provided. By installing a connecting pipe, the length of the water meter installation place installed on the ground, the so-called span, can be kept constant, and re-installation of the water meter can be facilitated without causing piping displacement during re-installation. It can be carried out. In addition, by using a holder and a detachable nut for one of the water connection portions of the pair of connection portions, it is not necessary to rotate the detachable nut completely, and the re-installation operation can be performed sufficiently accurately with little effort even in a small space. be able to. In that case, the base attached to the connection pipe can act as a stopper for preventing the holder from coming off. This pedestal is used as a stopper that sandwiches and fixes a rib-like body formed on the surface near one end of the water meter to prevent reverse mounting and prevent the above-mentioned holder from popping out.
[0008]
That is, the connecting device for a water meter of the present invention comprises a connecting pipe and a pair of connecting portions provided on both sides of the connecting pipe, and the connecting pipe is attached to each of the pair of connecting portions. The connection body part of the pair of connection parts has a water pipe connection part and a water meter connection part at both ends, and the pair of connection parts The water meter connection part of one of the connecting parts is composed of a holder having a notch at a tip holding one end of the water meter and a detachable nut for fixing the water meter by moving the holder forward and backward. the connection to the pipe is mounted pedestal having a notch to secure the water meter in a predetermined position, and the connecting pipe, the coercive Chi the interval between connection portions of the pair constant of the holder Before the notch at the tip is formed in the pedestal The holder and align the notch is characterized in that it is configured so that it is no longer in contact with the pedestal. A check valve unit may be mounted on the holder, and the check valve unit may be removed from the holder by driving the detachable unit to advance or retract the holder. Either one of the pair of connection bodies may be provided with a water supply member. The water supply member may be either a water stop valve or a check valve. A leg portion may be attached to each of the pair of connection portions.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the invention will be described with reference to the drawings.
First, a first embodiment will be described with reference to FIGS.
FIG. 1 is a front sectional view of a connecting device for a water meter according to a first embodiment of the present invention, FIG. 2 is a perspective view of a connecting device for a water meter shown in FIG. 1, and FIG. 3 is an amount shown in FIG. FIG. 4 is a front view showing a state in which the metering device connecting device shown in FIG. 1 is installed in a building, and FIG. 5 is a metering device shown in FIG. FIG. 6 is a front sectional view for explaining a state in which the water meter in the connecting device of the water meter shown in FIG. 1 is detachable, and FIG. 7 to FIG. 9 is a partial front cross-sectional view of the connecting device for the water meter for explaining the operation of taking out the holder used in the connecting device for the water meter shown in FIG.
[0010]
As shown in FIG. 1 and FIG. 2, the connection device for a water meter according to this embodiment includes a pair of connection portions 1 a and 1 b, and the connection portions 1 a and 1 b include connection portions 5 a and 5 b and this connection portion. It is comprised from the connection body parts 6a and 6b provided on 5a and 5b. In this embodiment, the connecting portion and the connecting body portion are integrally formed, but separate members may be joined using a connecting tool or the like. The connection body parts 6a and 6b have water pipe connection parts 15a and 15b and water meter connection parts 16a and 16b, respectively. The connection body part 6a consists of the socket main body 14 connected integrally with the connection part 5a, and the socket main body 14 is provided with the water pipe connection part 15a and the water meter connection part 16a. The connecting body portion 6b is composed of a telescopic socket body 13 that is integrally connected to the connecting portion 5b, and the metering water connector connecting portion 16b is composed of a holder 11 inserted into one end of the telescopic socket body 13 via a packing, and a water meter It is comprised from the attachment nut 12 which attaches / detaches.
[0011]
Further, the other end of the telescopic socket body 13 constitutes a water pipe connecting portion 15b. A check valve unit 18 is mounted inside the holder 11. Thereby, when taking out a water meter, water flows backward from the downstream side to prevent outflow from the outside. A handle 12a is attached to the outer periphery of the telescopic socket body 13 so that it can be easily rotated. A notch 11 a is formed on the upper surface of the holder 11 exposed from the telescopic socket body 13.
The pair of connecting portions 5a and 5b have fitting holes facing each other, and the connecting pipe 4 is fitted into each of them. The connecting pipe 4 keeps the distance between the pair of connecting parts 6a and 6b constant.
A pedestal 7 is attached to the connecting pipe 4 to stably hold the attached water meter. The pedestal 7 is used as a stopper for preventing a dropout when the water meter is fixed at a predetermined position and the holder 11 is taken out from the telescopic socket body 13. As shown in FIG. 3, the pedestal 7 has a cylindrical portion into which the connecting pipe 4 is inserted, and the cylindrical portion slides on the connecting pipe and is fixed by screwing at a predetermined position. . The pedestal 7 has a notch for sandwiching the rib of the water meter, and a notch 7a that allows the holder 11 to move is formed.
[0012]
FIG. 4 shows a case where a water meter is connected to the connection device shown in FIG. 1 and is actually installed in a pipe. A pair of connecting parts connected by the connecting pipe 4 is connected to a water meter at one end of the pair of connecting parts 6a and 6b facing each other, and a branch pipe branched from the water pipe is joined to each other end. Has been. The water pipe 3 piped in the building 10 is branched into a branch pipe 2a, and a water meter 100 is connected to the branch pipe 2a. The branch pipe 2a side branched from the water pipe 3 is upstream (left side in the figure), and the opposite side, that is, the branch pipe 2b side is downstream (right side in the figure). The water meter 100 is connected to the branch pipes 2a and 2b via a water meter connecting device. The connection device of the water meter is composed of a pair of connection portions 1a and 1b and a connection pipe 4, and the connection portions 1a and 1b are respectively connected to connection body portions 6a and 6b and connection portions 5a and 5b connected to these connection body portions. Become. The connection pipe 4 connects these connection parts 5a and 5b. Moreover, the base 7 attached to the connection pipe 4 fixes the water meter in a correct position with the rib 19 of the water meter 100 interposed therebetween. Branch pipes 2a and 2b are connected to one ends of the connecting body portions 6a and 6b, respectively, and a water meter 100 is attached to the other end. Further, a stop cock 8 is provided in the vicinity of the branch point from the water pipe 3 of the branch pipe 2a.
[0013]
Next, a situation in which a water meter is installed in a pipe shaft or pipe space provided in a building will be described, and a method for re-installing an existing water meter will be described.
When the predetermined time has come and it is necessary to replace the water meter, first, the stop cock 8 is closed to stop water flow. Next, the detachable nut 12 is loosened, and the water meter is removed from the connecting body parts 6a and 6b. After the old water meter 100 is removed, the new water meter 100 is fitted into the connecting body parts 6a and 6b, the attaching / detaching nut 12 is screwed, and the water stop cock 8 is opened to make the water flow.
In this embodiment, when the old water meter is replaced with a new water meter, the length of the water meter installation place installed on the ground is kept constant, and there is no pipe displacement, and the water meter is reinstalled. Can be easily performed. Moreover, the pedestal attached to the connecting pipe can prevent the water meter from being reversed, and can prevent the holder from coming out of the telescopic socket body.
[0014]
Next, with reference to FIG.5 and FIG.6, the method to remove a water meter from a connection apparatus is demonstrated in detail. As shown in FIG. 5, one end of the water meter 100 is in contact with the socket body 14 via a ring packing. The other end is held by a holder 11, and this holder is fixed to the telescopic socket body 13 using a detachable nut 12. The holder 11 is in contact with the telescopic socket body 13 via a ring packing. At this time, the pedestal 7 having the notch 7 a attached to the connecting pipe 4 fixes the water meter so as to sandwich the rib 19 formed in the water meter 100.
Remove the water meter from this state. First, as shown in FIG. 6, the detachable nut 12 is retracted. Then, when the holder 11 is pushed into the telescopic socket body 13, the water meter can be taken out.
[0015]
Next, a method of taking out the holder from the connection body portion will be described with reference to FIGS. A check valve unit is mounted inside the holder, and this check valve unit must be replaced when necessary. In a state in which the water meter is removed, as shown in FIG. 7, the detachable nut 12 is retracted, and the holder 11 is pushed into the telescopic socket body 13. At this time, the holder 11 jumps out of the telescopic socket body 13 by water pressure from the downstream side, but the tip of the holder abuts against the pedestal 7 to prevent complete popping out of the holder 11 (FIG. 8). A notch 11 a is provided at the tip of the holder 11, and when the notch 11 a is aligned with the notch 7 a formed on the pedestal 7, the holder 11 does not contact the pedestal 7. Therefore, the holder 11 is free to jump out and can be easily taken out from the telescopic socket body 13 and the internal check valve unit can be easily replaced (FIG. 9).
[0016]
Next, a second embodiment will be described with reference to FIG.
FIG. 10 is a front view of the connection device of the water meter according to the second embodiment of the present invention. The connection device for the water meter according to this embodiment is characterized in that the connecting body portion has a water supply member such as a check valve, a stop cock or a pressure reducing valve. In this embodiment, the connection device is fixed to the upstream socket body. A faucet is attached. The connecting device for the water meter of this embodiment has the basic structure described in the first embodiment. That is, the stop cock 20 is provided in the connecting device of the water meter shown in FIG. The stop cock 20 can be switched between water supply and water stop by turning the handle 21. The water stop cock 20 is fixed to the socket body 14 by a connection nut 22. Further, the water pipe is connected to the stop cock 20 by a connection nut 23.
[0017]
In this embodiment, when the old water meter is replaced with a new water meter by using a connecting pipe, the length of the water meter setting place installed on the ground is kept constant, and no pipe displacement occurs. The water meter can be easily re-installed. Moreover, the pedestal attached to the connecting pipe can prevent the water meter from being reversed and the holder from being pulled out of the telescopic socket body by the function of fixing the rib attached to the water meter. Further, by integrating the water supply member with the connection device of the water meter, the space where the water meter is installed can be used effectively.
[0018]
Next, a third embodiment will be described with reference to FIG.
FIG. 11 is a front view and a bottom view of a leg portion of a connecting device for a water meter according to a third embodiment of the present invention. The connecting device for a water meter according to this embodiment is characterized in that a leg portion that can be installed on a floor is provided. The connecting device for the water meter of this embodiment has the basic structure described in the second embodiment.
Leg portions 30a and 30b having an L-shaped cross section are integrally provided at the bottoms of the connecting portions 5a and 5b constituting the pair of connection portions 1a and 1b, respectively. Of course, in this invention, you may make it attach to a connection part by making a leg part into a different body. The leg portions 30a and 30b are attached to the building 10 shown in FIG. 4, for example. However, in this case, the stop cock shown in FIG. 4 is not used. In order to adjust the installation height of the water meter, a rod-shaped support may be fixed to the floor, and the legs 30a and 30b may be attached to the tips of the support. Further, in this embodiment, the connecting device for the water meter shown in FIG. 10 has a basic structure, but the connecting device for the water meter shown in FIG. 1 may have a basic structure.
[0019]
In this embodiment, when the old water meter is replaced with a new water meter by using a connecting pipe, the length of the water meter setting place installed on the ground is kept constant, and no pipe displacement occurs. The water meter can be easily re-installed. Moreover, the pedestal attached to the connecting pipe can prevent the water meter from being reversed and the holder from being pulled out of the telescopic socket body by the function of fixing the rib attached to the water meter. Moreover, new installation of the connection device of a water meter becomes easy by using a leg part.
The connection pipe used in the present invention can also be used as a support base material for mounting and fixing to a structure such as a pipe shaft or other piping in the pipe space.
The present invention is not limited to the above-described embodiments, and the configuration, shape, material, quantity, etc., of details may be appropriately changed, added, deleted, etc. without departing from the spirit of the present invention. it can.
[0020]
【The invention's effect】
According to the present invention, the length (span) of the installation place of the water meter installed on the ground can be kept constant by the above configuration, and piping displacement does not occur at the time of re-installation. The pedestal attached to the connection pipe can prevent the water meter from being reversed and prevent the holder from coming out of the telescopic socket body.
[Brief description of the drawings]
FIG. 1 is a front sectional view of a connecting device for a water meter according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a connecting device of the water meter shown in FIG.
FIG. 3 is a perspective view of a pedestal used in the measuring device connecting apparatus shown in FIG. 1;
FIG. 4 is a front view showing a state in which the connecting device for a water meter according to the first embodiment of the present invention is installed in a building.
FIG. 5 is a front cross-sectional view of the connecting device of the water meter shown in FIG. 1 in a state where the water meter is mounted.
6 is a front cross-sectional view of the connecting device of the water meter shown in FIG. 1 in a state in which the water meter can be detached.
7 is a partial front cross-sectional view of the connection device for the water meter for explaining the operation of taking out the holder used in the connection device for the water meter shown in FIG. 1;
FIG. 8 is a partial front sectional view of the connection device for the water meter for explaining the operation of taking out the holder used in the connection device for the water meter shown in FIG. 1;
9 is a partial front cross-sectional view of a metering device connection device for explaining a holder taking-out operation used in the metering device connection device shown in FIG. 1. FIG.
FIG. 10 is a front view of a connecting device for a water meter according to a second embodiment of the present invention.
FIGS. 11A and 11B are a front view and a bottom view of a leg portion of a connecting device of a water meter according to a third embodiment of the present invention.
FIG. 12 is a front view showing a state in which a water meter is installed in a building by a conventional method.
[Explanation of symbols]
1a, 1b ... connection part,
2a, 2b, 102, 202 ... branch pipes,
3, 103 ... water pipe, 4 ... connecting pipe,
5a, 5b ... connecting part, 6a, 6b ... connecting body part,
7 ... pedestal, 7a, 11a ... notches,
8, 20, 115 ... stopcocks, 10 ... buildings,
11 ... Holder, 12 ... Detachable nut,
12a, 21 ... handle, 13 ... telescopic socket body,
14 ... Socket body, 15a, 15b ... Water pipe connection part,
16a, 16b ... water meter connection part, 18 ... check valve unit,
22, 23 ... Connection nuts, 30a, 30b ... Legs,
100 ... water meter, 101a, 101b ... connection piping,
104a, 104b ... support tool,
105a, 105b ... Connection nut

Claims (5)

A connecting pipe and a pair of connecting portions provided on both sides of the connecting pipe, the pair of connecting portions each including a connecting portion to which the connecting pipe is attached and a connecting body portion; The connection body part of the pair of connection parts has a water pipe connection part and a water meter connection part at both ends, and the water meter connection part of one connection part constituting the pair of connection parts. Consists of a holder having a notch at the tip that holds one end of the water meter and a detachable nut that fixes the water meter by moving the holder forward and backward, and the connecting pipe is placed at a predetermined position. and the base is attached with a notch for fixing, and the connecting pipe, Chi coercive the interval between connection portions of the pair constant lack the cut a notch formed in the pedestal of the tip of the holder To the holder Connecting device water meter, characterized in that it is configured so that it is no longer in contact with the pedestal.   The quantity according to claim 1, wherein a check valve unit is mounted on the holder, and the check valve unit is removed from the holder by driving the detachable unit to move the holder forward and backward. Water device connection device. One of the pair of connection bodies is provided with a water supply member, and the connection device for a metered water device according to claim 1 or 2 . The apparatus for connecting a water meter according to claim 3 , wherein the water supply member is any one of a water stop valve, a check valve, and a pressure reducing valve. The connecting device for a water meter according to any one of claims 1 to 4 , wherein a leg portion is attached to each of the pair of connection portions.

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