JP2008274697A - Pipe frame and connection device of water meter using the pipe frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pipe frame capable of maintaining constant the lengths of installation places for water meters and devices other than the water meters installed on a ground and preventing pipes from being displaced, accurately and easily re-installable, and adaptable to the versatility of connection parts according to regional characteristics and applications, and a connection device of water meters using the pipe frame. <P>SOLUTION: This pipe frame 30 comprises: leg parts 31a, 31b each having a plate-like base portion having longitudinal both ends bent downward; mounting parts 37a, 37b formed by bending the ends of the leg parts horizontally; reinforcement parts 36a, 36b formed by bending both ends of the base portion downward; and a plurality of through holes near the leg parts formed at the longitudinal both ends of the base portion. The end of the mounting part has a mounting cutout, and projecting parts 34, 35 are disposed between both ends thereof. A vertical slit 35a is formed at the upper end of the second projecting part 35. Primary and secondary connection parts are secured to the pipe frame 30 with bolts 19 for forming the connection device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pipe mount and a connection device for a water meter using the pipe mount.

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 at 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. The connection device includes a pair of connection plate portions facing each other in front and back, and a connecting portion for connecting the connection plate portions, and each connection plate portion is provided with a connection portion having a water passage. A water meter can be connected between the ends. In this case, the front part and the rear part of one plate member are bent upright at right angles by press molding, and a part of the connection part and a part or all of the connection plate part are integrally formed, and each connection plate part A connecting stay is installed between them to form the remaining portion of the connecting portion. At the same time as reducing the overall size and weight, it is possible to increase mass productivity and significantly reduce costs by greatly reducing the number of parts and manufacturing steps.
Japanese Patent No. 2660813

The connecting device of the water meter described in Patent Document 1 described above is integrally formed as a press-worked product using a single plate member constituting the connecting device. That is, the front and rear portions of the plate member are bent and raised at a right angle by press forming to integrally form the lower connecting portion and the main plate portion, and the left and right portions of the lower connecting portion are substantially perpendicularly directed downward. Bend to form the legs together. When connecting such water meter connection devices to pipes and reconnecting them for replacement, various pipes such as gas pipes and electrical pipes are installed in addition to water supply pipes. It is difficult to work in a confined 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 not properly disposed on the upstream side and the downstream side for attachment. It was difficult to work in a limited space.

There are various inconveniences that such a connection device for a water meter has various members and member connection forms depending on the regional characteristics and applications, and it is necessary to prepare a member suitable for each. Moreover, although the apparatus installed in the said limited space is not restricted to a water meter, there was no connection apparatus other than a water meter. In addition, when a member that is integrally molded by pressing a plate member is used as a connecting part in a connecting device of such a water meter, it is necessary to maintain mechanical strength, and the connecting device is securely attached to the connecting part. There is a need to.
This invention is made | formed by such a situation, and can maintain the length of the installation place of the water meter installed on the ground and a water meter external device constant, a water meter and a water meter A pipe mount with high mechanical strength that can be re-installed accurately and easily without the displacement of pipes when installing external equipment, and that can flexibly respond to the diversity of connection parts depending on regional characteristics and applications, and A connecting device for a water meter using the pipe mount is provided.

  One aspect of the pipe mount of the present invention includes a plate-like base portion made of a rigid member plate, and the base portion has a leg portion formed by bending both ends in the longitudinal direction downward, and a tip end of the leg portion. And a plurality of portions provided in the vicinity of the leg portions formed at both ends in the longitudinal direction, a mounting portion formed by horizontally bending the base portion, a reinforcing portion formed by bending both ends in the width direction of the base portion downward, respectively. It is characterized by having through-holes. There is a mounting hole or notch at the tip of the mounting portion, the first and second projections are arranged at intervals between both ends in the longitudinal direction, and a vertical slit is formed at the upper end of the second projection It may be made to be.

  One aspect of the connection device for a metered water device of the present invention comprises a pair of opposing connection portions connected in the middle of a water pipe and a connecting portion for connecting the connection portions, and the water meter is connected between the pair of connection portions. In the connecting device of the water meter configured to be detachable, the pair of connecting portions are connected to the primary and secondary support bases coupled to the connecting portion, and the primary side supported by the respective support bases. Consists of a connection mechanism part and a secondary side connection mechanism part, and the primary side connection mechanism part has a primary side outer cylinder part having a connection end part connected to the water pipe side at the outer end, and the primary side outer cylinder. A primary side inner cylinder part having an attachable / detachable end part for inserting and removing the water meter at the inner end, and an operation part for displacing the primary side inner cylinder part in the extension / contraction direction. The connection mechanism part on the next side includes a connection end part connected to the water pipe side at the outer end, and a detachable end part attaching and detaching a water meter to the inner end It includes a mounting hole having, in the connecting portion is characterized by using a pipe rack according to claim 1 or claim 2.

  The pipe mount of the present invention has high mechanical strength and can stably mount a connection device for a water meter or a device outside the water meter. And it can be easily re-installed. Furthermore, by configuring the pipe mount from a rigid member plate, it is possible to reduce the size and weight of the connection device for the water meter and the external device, and use the plurality of through holes formed at both ends of the base portion. As a result, it can be easily replaced with a wide variety of connection devices, and the mass production can be improved and the cost can be greatly reduced by drastically reducing the number of parts and manufacturing man-hours.

  Hereinafter, embodiments of the invention will be described with reference to examples.

The first embodiment will be described with reference to FIGS.
1 is a perspective view of a pipe mount according to the first embodiment, FIG. 2 is a front sectional view of the pipe mount shown in FIG. 1, FIG. 3 is a front view of the pipe mount shown in FIG. 1, and FIG. 1 is a right side view of the pipe mount shown in FIG. 1, FIG. 5 is a front cross-sectional view of a connection device for a water meter provided in the pipe mount according to the first embodiment, and FIG. 6 is a connection device for a water pipe shown in FIG. FIG. 7 is a partial front sectional view for explaining the operation of the primary side connection mechanism part constituting the connecting device for the water meter shown in FIG. 5, and FIG. 9 is a perspective view of the connecting device of the water meter shown in FIG. 9, FIG. 9 is a front view of the state in which the water meter is mounted on the connecting device of the water meter shown in FIG. These are the front view and YY sectional drawing of the state which mounted the water meter in the reverse direction on the connection device of the water meter shown in FIG.

First, the structure of the pipe mount will be described with reference to FIGS.
The pipe mount 30 is composed of a plate-like base portion made of a rigid member plate such as iron, stainless steel, reinforced plastic, or the like. Legs 31a and 31b are formed by bending both ends of the base portion in the longitudinal direction downward at a substantially right angle. Further, the tips of the leg portions 31a and 31b bent downward are bent substantially horizontally to form the attachment portions 37a and 37b. Both ends of the base portion in the width direction are bent downward at substantially right angles to form reinforcing portions 36a and 36b. In addition, a plurality of through holes 32a, 32b, 33a, 33b are provided in the vicinity of the leg portions 31a, 31b on the upper surface of the base portion. That is, in this embodiment, two through holes 32a and 32b arranged in the longitudinal direction are formed in the vicinity of the leg portion 31a, and two through holes 33a and 33b arranged in the longitudinal direction are formed in the vicinity of the leg portion 31b. Is formed. The reinforcing portions 36a and 36b are formed by bending both ends of the base portion width direction made of a rigid member plate having a width direction length of 1/2 or more at substantially right angles.

  A mounting notch or hole (in this embodiment, a notch is used) is provided at the tip of the mounting portions 37a and 37b. Between the through holes 32a and 32b and the through holes 33a and 33b, the first protrusions 34 and the second protrusions 35 are arranged at intervals. A vertical slit 35 a is formed at the upper end of the second protrusion 35. The 1st projection part 34 has the rotation control function for rotation-straight-ahead conversion, when using a pipe mount for the connecting device of a water meter. The 2nd projection part 35 has a reverse attachment prevention function at the time of mounting a water meter.

Next, referring to FIG. 5 to FIG.
The connecting device of the water meter includes a pair of connecting parts (a primary side connecting part and a secondary side connecting part) facing each other and a pipe mount 30 used as a connecting part for connecting the connecting parts. Each connection part is comprised by the connection base part supported by the support bases 5 and 15 couple | bonded with the pipe mount 30, and each support base 5 and 15, respectively. At the inner end of the connection mechanism portion of each connection portion, detachable end portions 1a and 15a for attaching and detaching the water meter are arranged, and at the outer end, a connection end portion connected to the water pipe side is arranged, and the detachable end portion 1a and A water channel is provided between the connection ends, and further between the detachable end 15a and the connection end. In this case, one connection portion is a primary side (upstream side), and the other connection portion is a secondary side (downstream side).

Hereinafter, details of each component will be described.
As shown in FIG.5 and FIG.8, the support bases 5 and 15 which comprise each connection part can each be cast using a bronze casting. Each support base has two mounting holes 5b, 5c, 15b, and 15c formed on the bottom surface.

On the other hand, the connection mechanism part constituting the primary side connection part includes a primary side outer cylinder part 7 provided with a connection end part at the outer end, and is inserted into the primary side outer cylinder part 7 so as to be extendable and retractable. The primary side inner cylinder part 1 which provided the attachment / detachment end part 1a in the end, and the operation part 4 which displaces this primary side inner cylinder part 1 in an expansion-contraction direction are provided. The primary side outer cylinder part 7 uses an elbow pipe that can change the protruding direction of the connection end part provided at the outer end and can be fixed to the support base part 5 on the primary side. In this case, the elbow pipe is L-shaped and has a connection end portion for connecting the water pipe side at one end, and an opening for receiving the end portion of the primary inner cylinder portion 1 at the other end. The primary side inner cylinder part 1 and the primary side outer cylinder part 7 comprise the water channel.
When the primary side outer cylinder part (elbow pipe) 7 is attached to the support base part 5, the tip of the primary side outer cylinder part 7 is inserted into an attachment hole opening provided in the upper part of the support base part 5 and fixed with a screw 8.

  One end of the primary side inner cylinder portion 1 is inserted into the primary side outer cylinder portion 7, and a detachable end portion 1 a is provided at the other end exposed to the outside. In this case, the O-ring packing 3 is interposed between the inserted outer peripheral surface of the primary inner cylinder portion 1 and the inner peripheral surface of the primary outer cylinder portion 7, and the end surface of the detachable end portion 1a is sealed. The seal is attached when the packing is attached and the connection port of the water meter comes into contact (pressure contact). Further, a screw portion is provided on a portion of the outer peripheral surface of the primary side inner cylinder portion 1 that is not inserted into the primary side outer cylinder portion 7.

The operation unit 4 includes an operation tube unit and a screw handle provided at one end of the operation tube unit. The inner peripheral surface of the operation tube portion is screw-connected to the outer peripheral surface of the primary side inner tube portion 1, and a ring groove is provided on the outer peripheral surface of the operation tube portion. A ring groove corresponding to the ring groove provided on the outer peripheral surface of the operation tube portion is provided on the inner peripheral surface of the upper mounting hole in the support base portion 5.
When attaching the operation tube portion of the operation portion 4 to the support base portion 5, if the operation tube portion is inserted into the attachment hole of the support base portion 5 while the ring is accommodated in the ring groove of the operation tube portion, the positions of the ring grooves are changed. The ring is formed so as to straddle between both ring grooves. Thereby, although the rotational displacement of the operation cylinder part of the operation part 4 is accept | permitted, omission is prevented.
Therefore, by rotating the screw handle of the operation unit 4, the primary inner cylinder 1 that is prevented from rotating can be moved forward or backward in the axial direction by the stroke Ls (see FIG. 7).

On the other hand, the connection mechanism portion of the support base portion 15 constituting the secondary side connection portion has a mounting hole for accommodating the check valve unit 20 and a detachable end portion 15a provided at the inner end of the mounting hole. A packing is attached to the end face of the detachable end portion 15a so as to perform sealing when the connection port of the water meter comes into contact (pressure contact). Further, the attachment hole of the connection mechanism portion further has a first connection end portion in the horizontal direction and a second connection end portion in the vertical direction. In this embodiment, for example, the first connection portion is sealed with a cap 21, and the rotary joint 22 is connected to the second connection portion.
In the check valve unit 20, the valve body portion is pressed by water pressure when water flows, so that the valve body portion is displaced downstream (secondary side) against the urging force of the spring, and the valve body portion Is separated from the valve seat to open the water channel. On the other hand, when water flow is stopped due to water breakage or the like, the water pressure from the upstream side disappears, so the valve body part is displaced to the valve seat side by the urging force of the spring and comes into contact (pressure contact) with the valve seat. This prevents return of tap water from a downstream water pipe (not shown).

  Next, with reference to FIG. 6, the attachment method which attaches a primary side connection part and a secondary side connection part to a pipe mount is demonstrated. The primary side connecting portion is placed on the pipe mount 30 such that the mounting holes 5b and 5c provided at the bottom of the support base 5 face the through holes 32a and 32b provided in the base portion of the pipe mount 30. Then, the bolt 19 is passed through the through holes 32 a and 32 b together with the washer 18 and the bush 16, inserted into the mounting holes 5 b and 5 c, and screwed to fix the primary side connection portion to the pipe mount 30. Similarly, the secondary side connection portion is placed so that the attachment holes 15 b and 15 c provided in the bottom portion of the support base 15 face the through holes 33 a and 33 b provided in the base portion of the pipe mount 30. The bolt 19 is passed through the through holes 33 a and 33 b together with the washer 18 and the bush 16, inserted into the mounting holes 15 b and 15 c, and screwed to fix the secondary side connection portion to the pipe mount 30.

Since a plurality of through holes (two in this embodiment) are fixed to one connection portion, the primary side and secondary side connection portions are firmly attached to the pipe mount.
Next, the operation of the primary side inner cylinder portion 1 will be described with reference to FIG. As described above, the rotational displacement of the operation tube portion of the operation portion 4 is performed. By rotating the screw handle of the operation portion 4, the primary inner cylinder portion 1 that is prevented from rotating can be moved forward or backward in the axial direction by the stroke Ls.

Next, with reference to FIG.9 and FIG.10, the attachment / detachment method of the water meter 25 is demonstrated.
The water meter 25 can be attached / detached between the primary attachment / detachment end 1a and the secondary attachment / detachment end 15a of the connection device. First, when the water meter 25 is mounted, the screw handle of the operation unit 4 is rotated to one side to retract the primary side inner cylinder 1. In this case, the primary side inner cylinder part 1 is displaced backward in the direction of the primary side outer cylinder part 7 (shortening direction) because the rotation direction displacement is regulated by the first protrusion 34 of the pipe mount 30 (FIG. 7). (See (a)). Thereby, since the space | interval between the primary side attachment / detachment edge part 1a and the secondary side attachment / detachment edge part 15a becomes wide, the prepared water tank 25 is accommodated between the attachment / detachment edge parts 1a and 15a, and the connection port of both ends is attached or detached. The end 1a and the detachable end 15a are opposed to each other. Next, the screw handle of the operation unit 4 is turned to the other side to move the primary inner cylinder 1 forward in the extending direction (see FIG. 7B). Thereby, the connection port in the both ends of the water meter 25 is pinched | interposed between the attachment / detachment edge part 1a and the attachment / detachment edge part 15a, respectively, and mounting | wearing of the water meter 25 is complete | finished. On the other hand, removal of the water meter 25 can also be easily removed by performing an operation opposite to the operation at the time of mounting.

  At this time, the 1st projection part 34 of piping stand 30 has a rotation regulation function for rotation-straight-ahead conversion (Drawing 9 (a)). The second protrusion 35 prevents the water meter from being reversed (FIG. 9B). The water meter 25 has a rib 25a. When the water meter 25 is mounted in a normal orientation, the rib 25a provided at the bottom of the water meter 25 is accommodated in the vertical slit 35a of the second protrusion 35 as shown in FIG. Therefore, normal mounting is allowed. However, as shown in FIG. 10, when the water meter 25 is to be mounted in the reverse direction, the bottom of the water meter 25 abuts on the upper end of the second protrusion 35 and the downward displacement is restricted. This prevents the water meter 25 from being reversed. In this case, the secondary side end portion of the water meter 25 does not come into close contact with the secondary side attaching / detaching end portion 15a and is in contact with being inclined by θ from the vertical direction, so that the reverse attachment can be easily found.

  As described above, in this embodiment, by using a pipe mount having high mechanical strength, it is possible to keep the length of the installation place of the water meter installed on the ground or the device outside the water meter constant. When installing equipment outside the water meter, pipes can be re-installed accurately and easily without any displacement, and it is possible to respond flexibly to the diversity of connections according to regional characteristics and applications. Become. Furthermore, it is possible to reduce the size and weight of the connection device for the water meter, and at the same time, it is possible to increase the mass productivity by greatly reducing the number of parts and the number of manufacturing steps, and to greatly reduce the cost.

Next, Example 2 will be referred to with reference to FIG.
FIG. 11 is a front cross-sectional view of a connecting device for a water meter provided with a pipe mount according to the second embodiment. The bottom of the support base 26 of the secondary side connection portion has the same mounting hole as the bottom of the support base 15 of the first embodiment. By adopting this configuration, the secondary side connection of another function can be easily performed even in the production process. It becomes possible to reprint in the part. In this embodiment, a description will be given of a state in which the secondary side connection portion simpler than that of the first embodiment is mounted. The secondary side connection portion includes a support base portion 26 and a connection mechanism portion. The connection mechanism portion includes a connection end portion connected to the water pipe side at the outer end, and an attachment / detachment end portion for attaching / detaching the water meter to the inner end. It has the attachment hole which has. The connection mechanism part of the secondary side connection part has a mounting hole for housing the check valve unit 23, a detachable end part and a connection end part provided at the inner end of the mounting hole. A packing is attached to the end face of the detachable end portion so that sealing is performed when the connection port of the water meter comes into contact (pressure contact).

  As described above, in this embodiment, by using a pipe mount having high mechanical strength, it is possible to keep the length of the installation place of the water meter installed on the ground or the device outside the water meter constant. When installing equipment outside the water meter, pipes can be re-installed accurately and easily without any displacement, and it is possible to respond flexibly to the diversity of connections according to regional characteristics and applications. Become. Furthermore, it is possible to reduce the size and weight of the connection device for the water meter, and at the same time, it is possible to increase the mass productivity by greatly reducing the number of parts and the number of manufacturing steps, and to greatly reduce the cost.

Next, Example 3 will be described with reference to FIG.
FIG. 12 is a front view showing a state in which the connecting device for the water meter shown in FIG. 5 is installed in the building. FIG. 12 shows a case where a water meter is connected to the connection device of the water meter shown in FIG. 5 and is actually installed in a pipe. A pair of connecting parts connected by the pipe mount 30 is connected to a metering device 25 between them, and is branched from the water pipe 102 via the connecting part primary side outer cylinder part 7 and the stop cock 106. 105 is joined, and branch pipes 104 and 103 are joined to the other end (downstream side) of the connecting portion. A water pipe 102 piped in the building 100 is branched into a branch pipe 105, and a water meter 25 is connected to the branch pipe 105. The branch pipe 105 side branched from the water pipe 102 is the upstream side, and the opposite side, that is, the branch pipes 103 and 104 side is the downstream side.

Next, a situation where a water meter is installed in a pipe shaft or pipe space provided in a building will be described, and a method for replacing an existing water meter will be described. When it is necessary to replace the water meter at a predetermined time, first, the stop cock 106 is closed to stop water flow. Next, when the screw handle of the operation part is loosened, the primary side inner cylinder part retreats to the inside of the primary side connection mechanism part, so that the water meter can be removed from the connection device of the water meter. After the existing water meter is removed, a new water meter 25 is fitted between the primary side connection end and the secondary side connection end, and when the screw handle of the operation part is tightened, the primary side inner cylinder part becomes the primary side connection end. The water meter 25 is fixedly installed by moving forward. Thereafter, the water stop cock 106 is opened to make it water-permeable.
As described above, in this embodiment, the length of the installation place of the water meter and the water meter external device installed on the ground can be kept constant, and when installing the water meter and the water meter external device, It is possible to perform the re-installation accurately and easily without causing a pipe shift, and it is possible to flexibly cope with the diversity of connection portions depending on the regional characteristics and applications.
The best embodiment of the present invention has been described in detail with reference to the examples. However, the present invention is not limited to such an embodiment, and the detailed configuration, shape, material, quantity, numerical value, etc. However, any change, addition, or deletion can be made without departing from the scope of the present invention.

FIG. 3 is a perspective view of a pipe mount according to the first embodiment. FIG. 2 is a front cross-sectional view of the pipe mount shown in FIG. 1. FIG. 2 is a front view of the pipe mount shown in FIG. 1. FIG. 3 is a right side view of the pipe mount shown in FIG. 1. 1 is a cross-sectional front view of a connecting device for a water meter provided in a pipe mount according to Embodiment 1. Front sectional drawing explaining attachment of the connection part in the connection apparatus of the water meter shown in FIG. The partial front sectional view explaining the action of the primary side connection mechanism part which constitutes the connecting device of the water meter shown in FIG. The perspective view of the connecting device of the water meter shown in FIG. The front view of the state which mounted the metering device in the connection device of the metering device shown in FIG. 5, XX and YY sectional drawing. The front view and YY sectional drawing of the state which mounted the water meter in the reverse direction on the connecting device of the water meter shown in FIG. FIG. 6 is a front sectional view of a connecting device for a water meter provided with a pipe mount according to a second embodiment. The front view which shows the state which installed the connecting device of the water meter shown in FIG. 5 in a building.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Primary side inner cylinder part 1a, 15a ... Removable end part 4 ... Operation part 5, 15, 26 ... Support base 7 ... Primary side outer cylinder part (elbow pipe)
19 ... Bolt 30 ... Piping mount 31a, 31b ... Leg 32a, 32b, 33a, 33b ... Through hole 34, 35 ... Projection 35a ... Vertical slit 36a, 36b ...・ Reinforcement part 37a, 37b ... mounting part

Claims (3)

A plate-like base portion made of a rigid member plate, wherein the base portion is bent at both ends in the longitudinal direction downward and a mounting portion formed by horizontally bending the tip of the leg portion; And a reinforcing portion formed by bending both ends in the width direction of the base portion downward, and a plurality of through holes formed at both ends in the longitudinal direction and provided in the vicinity of the legs. Mount. There is a mounting hole or notch at the tip of the mounting portion, and first and second protrusions are arranged at intervals between both ends in the longitudinal direction, and at the upper end of the second protrusion, 2. A pipe mount according to claim 1, wherein a vertical slit is formed. A device for connecting a water meter comprising a pair of connecting portions connected in the middle of a water pipe and a connecting portion for connecting the connecting portions, wherein a water meter is configured to be detachable between the pair of connecting portions. The pair of connection portions are configured by primary and secondary support bases coupled to the coupling portion, and a primary side connection mechanism portion and a secondary side connection mechanism portion supported by the respective support base portions. The primary-side connection mechanism portion includes a primary-side outer cylinder portion having a connection end portion connected to the water pipe side at the outer end, and is stretchably inserted into the primary-side outer cylinder portion, and at the inner end. The primary side inner cylinder part which has the attachment or detachment end part which attaches or detaches a water meter, and the operation part which displaces the said primary side inner cylinder part in an expansion-contraction direction, The said connection mechanism part of a secondary side is a water pipe in an outer end An attachment hole having a connection end connected to the side and an attachment / detachment end for attaching / detaching the water meter to the inner end; Connecting device water meter, which comprises using a pipe rack according to claim 1 or claim 2.

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