JP2007322387A - Water meter installation unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water meter installation unit structured more simply than the conventional water meter installation unit, the water meter installation unit including: a long supporting member; a first channel forming member fixed to one end of the supporting member; and a second channel forming member fixed to the other end of the supporting member; wherein the first and second channel forming members nip a water meter such that end faces of the first and second channel forming members are respectively pressed against connecting screw portion end faces of the water meter, and the first channel forming member have a cylindrical slide holder that makes contact with one connecting screw portion end face of the water meter so as to press the water meter toward the second channel forming member, a lock nut that engages with the slide holder so as to drive the slide holder, and a slide guide, fixed to one end of the supporting member, which engages with the slide holder so as to prevent the slide holder from rotating. <P>SOLUTION: The lock nut is rotatably supported by one end of the slide guide and immovably supported in a direction of movement of the slide holder. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a water meter installation unit.

A first flow path forming member, comprising: a long support member; a first flow path forming member fixed to one end of the support member; and a second flow path forming member fixed to the other end of the support member. The end face of the first flow path and the end face of the second flow path forming member are pressed against the end face of the connecting screw portion of the water meter so that the first flow path forming member and the second flow path forming member sandwich the water meter. The forming member is in contact with one end of the connection screw portion of the water meter, and a cylindrical slide holder that presses the water meter toward the second flow path forming member, and is screwed to the slide holder to drive the slide holder. A water meter installation unit having a lock nut that is fixed to one end of the support member and a slide guide that engages with the slide holder and prevents the rotation of the slide hol. Adjacent to the valve fixed to the support member Water meter installation unit is disclosed in Patent Documents 1 and 2, characterized in that it is rolling capable and immovably supported in the direction of movement of the slide holder.
JP-A-9-280919 Japanese Patent Laid-Open No. 11-93226

In the water meter installation unit of Patent Documents 1 and 2, the pressure reaction force acting on the slide holder from the water meter is transmitted from the slide holder to the lock nut, from the lock nut to the valve, and from the valve to the support member. The support member must be formed with the slide guide fixing portion and the valve fixing portion, which complicates the structure of the support member and thus the structure of the water meter installation unit.
The present invention has been made in view of the above problems, and is a long support member, a first flow path forming member fixed to one end of the support member, and a second fixed to the other end of the support member. A first flow path forming member and a second flow path by pressing an end surface of the first flow path forming member and an end surface of the second flow path forming member against an end surface of a connecting screw portion of a water meter. A cylindrical slide that clamps the water meter with the forming member, and the first flow path forming member abuts one end of the connection screw portion of the water meter and presses the water meter toward the second flow path forming member. Water meter installation unit having a holder, a lock nut that is screwed to the slide holder to drive the slide holder, and a slide guide that is fixed to one end of the support member and engages the slide holder to prevent the slide hol from rotating In the water meter of Patent Document 1 It aims to base and structure to provide a simple water meters installed unit.

In order to solve the above problems, in the present invention, a long support member, a first flow path forming member fixed to one end portion of the support member, and a second flow fixed to the other end portion of the support member. A first flow path forming member and a second flow path formed by pressing the end face of the first flow path forming member and the end face of the second flow path forming member against the end face of the connecting screw portion of the water meter. A tubular slide holder that holds the water meter between the members and the first flow path forming member abuts against one end of the connection screw portion of the water meter and presses the water meter toward the second flow path forming member A lock nut that is screwed into the slide holder to drive the slide holder, and a slide meter that is fixed to one end of the support member and engages with the slide holder to prevent rotation of the slide holder. And one end of the slide guide Providing water meter installation unit, characterized in that rotatably and immovably supported in the direction of movement of the slide holder and Kkunatto.
In the water meter installation unit according to the present invention, the pressure reaction force acting on the slide holder from the water meter is transmitted to the support member via the slide holder, the lock nut, and the slide guide, and is arranged adjacent to the first flow path forming member. It is not transmitted to the installed valve. Therefore, it is not necessary to form the valve fixing portion on the support member, the structure of the support member is simplified as compared with Patent Documents 1 and 2, and the structure of the water meter installation unit is further simplified as compared with Patent Document 1. .

In a preferred aspect of the present invention, the slide guide has a cylinder and a screw that fixes the cylinder to the support member, and the tip of the screw engages with a vertical groove formed in the slide holder to rotate the slide holder. To prevent.
By preventing the rotation of the slide holder by engaging the tip of the screw that fixes the cylinder to the support member with the vertical groove formed in the slide holder, there is no need to form a rotation stop key on the cylinder. As a result, the structure of the slide guide can be simplified. By simplifying the configuration of the slide guide, the configuration of the water meter installation unit is simplified.
In a preferred embodiment of the present invention, the cylindrical body of the slide guide is formed by cutting a bar material.
A simple cylindrical body without a key does not need to be cast and can be easily formed by cutting a bar.
In a preferred embodiment of the present invention, one end of the elbow joint is rotatably connected to the other end of the slide guide.
A valve is connected to the other end of the elbow joint, but since the elbow is rotatable, the degree of freedom of installation of the valve is increased.
In a preferred aspect of the present invention, a circumferential groove is formed on the outer peripheral surface of one end of the elbow joint, a peripheral groove is formed on the inner peripheral surface near the other end of the slide guide, and the inner peripheral surface of the other end is expanded toward the other end. A funnel-shaped inclined surface is formed, one end of the elbow joint is inserted into the other end of the slide guide, and a retaining ring is engaged with the circumferential groove of the elbow joint and the circumferential groove of the slide guide.
A retaining ring is fitted into the circumferential groove of the elbow joint, and one end of the elbow joint is pushed into the other end of the slide guide. When the retaining ring moves along the slope of the inner peripheral surface of the other end of the slide guide, it is elastically deformed to reduce its diameter, and when it reaches the peripheral groove of the slide guide, it returns to its original diameter and slides with the peripheral groove of the elbow joint. Engages with the circumferential groove of the guide. As a result, one end of the elbow joint is rotatably connected to the other end of the slide guide. Engage the retaining ring with the circumferential groove of the elbow joint and the circumferential groove of the slide guide simply by fitting the retaining ring into the circumferential groove of the elbow joint and pushing one end of the elbow joint into the other end of the slide guide. Therefore, the connecting operation between the other end of the slide guide and the elbow joint is facilitated.

In the water meter installation unit according to the present invention, the pressure reaction force acting on the slide holder from the water meter is transmitted to the support member via the slide holder, the lock nut, and the slide guide, and is arranged adjacent to the first flow path forming member. It is not transmitted to the installed valve. Therefore, it is not necessary to form the valve fixing portion on the support member, the structure of the support member is simplified as compared with Patent Documents 1 and 2, and the structure of the water meter installation unit is further simplified as compared with Patent Document 1. .

A water meter installation unit according to an embodiment of the present invention will be described.
As shown in FIG. 1, the water meter installation unit A includes a long support member 1 formed of a plate material. Legs 1a and 1b that are in contact with and fixed to the building floor are formed at both longitudinal ends of the support member 1, and are adjacent to the legs 1a and 1b and closer to the center in the longitudinal direction than the legs 1a and 1b. Raised portions 1c and 1d are formed, and a depressed portion 1e is formed at the center in the longitudinal direction between the raised portions 1c and 1d.
The first flow path forming member 2 is fixed to the raised portion 1c, and the second flow path forming member 3 is fixed to the raised portion 1d.
The end face of the first flow path forming member 2 is pressed against the connecting screw end face B1 of the water meter B, the end face of the second flow path forming member 3 is pressed against the connecting screw end face B2 of the water meter B, and further The first flow passage forming member 2 is supported by the overhang portion formed at the lower end surface of the first flow path forming member 2 and the overhang portion formed at the lower end surface of the second flow passage forming member 3 to support the weight of the water meter B. And the second flow path forming member 3 sandwich the water meter B.

As shown in FIG. 2, the first flow path forming member 2 faces the water meter B toward the second flow path forming member 3 with the end face of one end abutting against one of the connection screw part end faces B1 of the water meter B. A cylindrical slide holder 21 to be pressed, a lock nut 22 that is screwed to the slide holder 21 to drive the slide holder 21 in the longitudinal direction, and is fixed to the raised portion 1c of the support member 1 and engages with the slide holder 21. And a slide guide 23 for preventing the slide hol 21 from rotating. One end of the slide guide 23 supports the lock nut 22 so that it can rotate and cannot move in the moving direction of the slide holder 21.
The slide guide 23 includes a cylindrical body 23a and screws 23b and 23c that are screwed to the peripheral wall of the cylindrical body 23a to fix the cylindrical body 23a to the raised portion 1c of the support member 1, and the distal end portion of the screw 23b is The slide holder 21 is prevented from rotating by engaging with the vertical groove 21a formed on the outer peripheral surface of the slide holder 21 inserted into the cylindrical body 23a.
The slide guide 23 has a screw 23d that is screwed to the peripheral wall at one end of the cylindrical body 23a. The slide guide 23 is configured such that one end portion of the cylindrical body 23 a rotatably accommodates one end portion of the lock nut 22 and the screw 23 d engages with a circumferential groove 22 a formed on the outer peripheral surface of the lock nut 22. The nut 22 is supported so as to be rotatable and immovable in the moving direction of the slide holder 21.
The cylindrical body 23a of the slide guide 23 is formed by cutting a bar.
One end of the elbow joint 4 is rotatably connected to the other end of the slide guide 23. The other end of the slide holder 21 is slidably inserted into one end of the elbow joint 4. The sliding contact portion between one end portion of the elbow joint 4 and the other end portion of the slide holder 21 is sealed by an O-ring.
One end of the elbow joint 4 having the peripheral groove 4a formed on the outer peripheral surface is inserted from the other end of the cylindrical body 23a to the vicinity of the other end of the cylindrical body 23a having the peripheral groove 23e formed on the inner peripheral surface. By engaging the retaining ring 5 with the circumferential groove 4a of the joint and the circumferential groove 23e of the cylindrical body 23a, one end of the elbow joint 4 is rotatably connected to the other end of the cylindrical body 23a of the slide guide. . The slide guide 23 has a screw 23f that is screwed onto the peripheral wall of the other end of the cylindrical body 23a. The tip of the screw 23f is in contact with one end of the elbow joint 4 to hold the elbow joint 4 at a predetermined rotational position. The inner peripheral surface of the other end portion of the cylindrical body 23a forms a funnel-shaped inclined surface 23g whose diameter increases toward the other end.
A pressure reducing valve C is attached to the other end of the elbow joint 4.

As shown in FIG. 3, the second flow path forming member 3 faces the other metering screw end face B <b> 2 of the water meter B so that the end face of one end abuts the water meter B toward the first flow path forming member 2. A cylindrical holder 31 to be pressed and a cylinder that is screwed to the raised portion 1d of the support member 1 and accommodates the other end of the holder 31, and supports the holder 31 so as to be slidably rotatable and not movable in the longitudinal direction. Shaped holder guide 32.
The holder guide 32 has a screw 32 a that is screwed to the peripheral wall at one end, and the tip of the screw 32 a engages with a circumferential groove 31 a formed on the outer peripheral surface of the other end of the holder 31 accommodated in the holder guide 32. By doing so, the holder guide 32 supports the holder 31 so as to be slidable and rotatable but not movable in the longitudinal direction. The sliding contact portion between the other end portion of the holder 31 and one end portion of the holder guide 32 is sealed by an O-ring.
A check valve body D is disposed in the holder guide 32.
One end of the elbow joint 6 is connected to the other end of the holder guide 32 so as to be rotatable and to be held at a predetermined rotational position. One end of the elbow joint 6 is connected to the holder guide 32 in the same manner as the elbow joint 4 is connected to the slide guide 23.
A secondary joint E is connected to the other end of the elbow joint 7.

The operation of the water meter installation unit A will be described.
The lock nut 22 is manually rotated to enlarge the gap between one end of the slide holder 21 and one end of the holder 31. The water meter B is put into a gap between one end of the slide holder 21 and one end of the holder 31, the other connecting screw part end surface B <b> 2 is brought into contact with the end surface of one end of the holder 31, and then the lock nut 22 is attached. By manually rotating, the gap between one end of the slide holder 21 and one end of the holder 31 is reduced, and the end surface of one end of the slide holder 21 is brought into contact with one end surface B1 of the connecting screw portion of the water meter B. The water meter B is pressed toward the holder 31 in contact. The water meter B is the first flow path forming member in a state where the weight is supported by the overhanging portion formed at the lower end surface of the one end portion of the slide holder 21 and the overhanging portion formed at the lower end surface of the one end portion of the holder 31. 2 and the second flow path forming member 3.
The end surface of one end portion of the slide holder 21 and the end surface of one end portion of the holder 31 are in pressure contact with one connection screw portion end surface B1 and the other connection screw portion end surface B2 of the water meter B. Water leakage from the connecting portion between the first flow path forming member 2 and the connecting portion between the water meter B and the second flow path forming member 3 is prevented.

In the water meter installation unit A, the pressure reaction force acting on the slide holder 21 from the water meter B is transmitted to the support member 1 through the slide holder 21, the lock nut 22, and the slide guide 23, and is transmitted to the first flow path forming member 2. It is not transmitted to the pressure reducing valve C arranged adjacently. Therefore, it is not necessary to form the fixing portion of the pressure reducing valve C on the support member 1, the structure of the support member 1 is simplified compared to Patent Documents 1 and 2, and the structure of the water meter installation unit A is therefore disclosed in Patent Document 1. Compared to simplification.
By engaging the tip of a screw 23b for fixing the cylindrical body 23a of the slide guide 23 to the support member 1 with a vertical groove 21a formed in the slide holder 21, the cylindrical body 23a is prevented from rotating. There is no need to form a key for stopping the rotation of the slide holder 21, and the configuration of the cylindrical body 23a and the slide guide 23 can be simplified.
The simple-shaped cylindrical body 23a that does not have a key does not need to be cast and can be easily formed by cutting a bar. A cylinder having a key must be an expensive cast-formed body, but a cylinder formed by cutting a bar is inexpensive.
A pressure reducing valve C is connected to the other end of the elbow joint 4, but the elbow joint 4 is rotatable and can be held at a predetermined rotational position, so that the pressure reducing valve C is installed avoiding obstacles or upstream. The degree of freedom in installing the pressure reducing valve is increased, for example, by changing the installation position of the pressure reducing valve in accordance with the piping on the side.
When the elbow joint 4 is connected to the first flow path forming member 2, the retaining ring 5 is externally fitted to the circumferential groove 4a of the elbow joint 4, and one end of the elbow joint 4 is connected to the slide guide cylinder 23a. Push into the edge. When the retaining ring 5 moves along the inclined surface 23g of the inner peripheral surface of the other end of the cylindrical body 23a, the retaining ring 5 is elastically deformed and reduced in diameter. When the retaining ring 5 reaches the peripheral groove 23e of the cylindrical body 23a, it is restored to its original diameter. 4 is engaged with the circumferential groove 4a and the circumferential groove 23e of the cylindrical body 23a. As a result, one end portion of the elbow joint 4 is rotatably connected to the other end portion of the cylindrical body 23a, and as a result, the elbow joint 4 is rotatably connected to the first flow path forming member 2. The retaining ring 5 is externally fitted to the circumferential groove 4a of the elbow joint 4, and the retaining ring 5 is inserted into the other end of the slide guide cylinder 23a by simply inserting one end of the elbow joint 4 into the circumferential groove 4a of the elbow joint 4. Can be engaged with the circumferential groove 23e of the cylindrical body 23a, so that the connection work between the other end of the cylindrical body 23a and the elbow joint 4, and the connection work between the first flow path forming member 2 and the elbow joint 4 can be performed. Facilitated.

The present invention is widely applicable to water meter installation units.

It is sectional drawing of the water meter installation unit which concerns on the Example of this invention. It is the elements on larger scale of FIG. It is the elements on larger scale of FIG.

Explanation of symbols

A Water meter installation unit B Water meter C Pressure reducing valve D Check valve body E Secondary joint 1 Support member 2 First flow path forming member 3 Second flow path forming member 4, 6 Elbow joint 4a Circumferential groove 5 Retaining ring 21 Slide Holder 21a Vertical groove 22 Lock nut 22a Circumferential groove 23 Slide guide 23a Cylindrical body 23b, 23c, 23d, 23f Screw 23e Circumferential groove 23g Slope 31 Holder 32 Holder guide

Claims (5)

A first flow path forming member, comprising: a long support member; a first flow path forming member fixed to one end of the support member; and a second flow path forming member fixed to the other end of the support member. And the end face of the second flow path forming member are pressed against the end face of the connecting screw portion of the water meter to sandwich the water meter between the first flow path forming member and the second flow path forming member. The forming member is a cylindrical slide holder that abuts one end of the connection screw portion of the water meter and presses the water meter toward the second flow path forming member, and is screwed to the slide holder to drive the slide holder. A water meter installation unit having a lock nut and a slide guide fixed to one end of the support member and engaged with the slide holder to prevent the slide hol from rotating, and one end of the slide guide rotates the lock nut Possible and of the slide holder Water meter installation unit, characterized in that the immovably supported in the motion direction. The slide guide has a cylindrical body and a screw for fixing the cylindrical body to the support member, and the tip end portion of the screw is engaged with a vertical groove formed in the slide holder to prevent the slide holder from rotating. Water meter installation unit. The water meter installation unit according to claim 2, wherein the cylindrical body of the slide guide is formed by cutting a bar material. The water meter installation unit according to any one of claims 1 to 3, wherein one end of an elbow joint is rotatably connected to the other end of the slide guide. A circumferential groove is formed on the outer peripheral surface of one end of the elbow joint, a peripheral groove is formed on the inner peripheral surface in the vicinity of the other end of the slide guide, and a funnel-shaped inclined surface whose diameter increases toward the other end is formed. 5. One end of the elbow joint is inserted into the other end of the slide guide, and the retaining ring is engaged with the circumferential groove of the elbow joint and the circumferential groove of the slide guide. The water meter installation unit described.

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