JP2015017430A - Frame of multiplex meter unit and duplex meter unit using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame for a multiplex meter unit suitable for plural different kinds of water service meters each having a different length and, the frame having a unit structure in which plural water service meters can be connected in parallel.SOLUTION: The frame accommodates plural meter connection units each of which detachably connects a water service meter to a primary side pipe member including a stop valve and a secondary side pipe member including a check valve therebetween. The frame is divided into two parts; i.e. a front frame and a rear frame. Each of the front frame and the rear frame is formed in a U-like shape as viewed from the top. Each of the frames has a right edge part and a left edge part which are overlapped with each other so as to be connected with each other in the end portions of the front edge part and the rear edge part which are parallel to each other at the primary side and the secondary side. Each of the front edge part and the rear edge part serves as a fixing frame of the primary side pipe member and the secondary side pipe member. The side edge parts of the front frame and the rear frame are connected to each other so that the distance between the front edge part and the rear edge part is adjustable.

Description

  The present invention relates to a frame in which a plurality of units for connecting water meters can be assembled in parallel, and a dual meter unit in which a plurality of connection units for water meters are assembled in parallel in this frame.

  One water meter is installed per household, but the applicant mainly discloses a dual meter unit that can be installed in parallel for four households (four) for low-rise apartments such as apartments. (Patent Documents 1 to 13). These dual meter units consolidate several water meters into a single base or meter pole, saving space compared to installing one water meter for each household, and for several households. Can be intensively metered.

  Until then, there was no idea of consolidating multiple water meters into a single meter basin, but the functions such as space saving and centralized meter reading described above have been recognized. It has been adopted by businesses.

JP 2009-293282 A JP 2011-214393 A JP 2011-214394 A JP 2011-214395 A JP 2011-231614 A JP 2011-247085 A JP 2012-127188 A JP 2012-132304 A JP 2012-188833 A JP 2012-219451 A JP 2013-76292 A JP 2013-96143 A JP 2013-100708 A

  By the way, the water meter has several diameters according to the amount of water used, and is generally selected from three types of 13φ, 20φ, and 25φ for home use. And the total length (distance of the connection end part of a primary side and a secondary side) differs for every caliber, and the meter for waterworks becomes long, so that a caliber is large. In the same 13φ water meter, there are a short type and a long type with a longer overall length.

  On the other hand, the dual meter units of Patent Documents 1 to 13 are designed to uniformly attach water meters having the same diameter (full length), and different types of water meters having different lengths cannot be attached.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a dual meter unit suitable for several types of water meters having different overall lengths in a unit structure capable of connecting a plurality of water meters in parallel. And a dual meter unit using the frame.

  In order to achieve the above-described object, in the present invention, a plurality of meter connection units are provided in parallel between the primary side piping member including the water stop cock and the secondary side piping member including the check valve. As a rectangular frame-like frame in plan view, it includes a front frame and a rear frame that are divided into a primary side and a secondary side, and the front frame and the rear frame are parallel to each other on the primary side and the secondary side. The left and right ends of the rear edge were formed in a U-shape in a plan view integrally having side edges that overlap each other so as to be locked together. Then, the front and rear edge portions of the front and rear frames are respectively fixed frames of the primary side piping member and the secondary side piping member, and the distance between the front edge portion and the rear edge portion can be expanded and contracted. The means of connecting the edges was used.

  In the above means, the front and rear frames are overlapped with the side edges facing each other, and the distance between the front edge and the rear edge is fixed by adjusting the overlap length and connecting the side edges. It can correspond to the full length of the water meter.

  There is no limitation on the method of locking the side edges of the front frame and the rear frame. For example, a screw hole is provided on the side edge of one of the front frame and the rear frame, and the side edge of the other frame. A plurality of through holes communicating with the screw holes are provided along the expansion / contraction direction, and one of the through holes is selected and screws are screwed into the screw holes so that side edges of the front frame and the rear frame are connected to each other. Can be locked. Depending on the number and interval of the through holes, it can correspond to several kinds of water meters having a diameter of 13φ to 50φ.

  When the left and right side edge portions are screwed at one place at the same position, there is a problem that the front and rear frames relatively rotate about the screw. Therefore, it is preferable to provide at least two screw holes and two through holes in pairs. Accordingly, the relative rotation is suppressed, and the front edge portion and the rear edge portion of the frame can be accurately opposed to each other. Since a pair of at least two is a minimum of a pair of top, bottom, left, or right, or diagonally, for example, the top two, the bottom one, or vice versa may be used. Two or more may be provided.

  As another method of securing the front frame and the rear frame, a screw hole is provided at the side edge of one of the front frame and the rear frame, and the side hole of the other frame corresponds to the screw hole. Then, a long hole is provided along the expansion / contraction direction, and the side edges of the front frame and the rear frame may be locked together by screwing a screw into the screw hole with the long hole interposed therebetween. According to this, before and after screwing the screw into the screw hole, the front and rear frames can be relatively expanded and contracted (sliding) using the long hole as a screw guide, and the side edges are connected at an arbitrary position. Can be stopped.

  In the sliding method using the long holes, the screw holes and the long holes are provided in pairs in order to prevent relative rotation of the front and rear frames, as in the case of the through holes.

  In addition, the front and rear frames can be relatively expanded and contracted by providing the key grooves and the keys that are slidably engaged with the key grooves on the overlapping surfaces of the side edges of the front and rear frames. In particular, if the key is a square axis, the above relative rotation can be suppressed at the same time. Of course, the front and rear frames can be expanded and contracted in a non-rotating state more reliably by providing the key and the key groove in parallel in a pair of upper and lower sides. Furthermore, this key and keyway can be used in combination with the two locking methods described above.

  The material of the frame is not limited and may be either metal or resin. Also, wood is not excluded.

  Although only the frame has been described so far, in the present invention, the dual meter unit is configured by providing the frame with the primary side piping member and the secondary side piping member. In this dual meter unit, since the primary side piping member and the secondary side piping member are assembled in advance in the frame, the construction is completed only by attaching a necessary number of water meters after the expansion / contraction adjustment of the frame. Here, the water meter is detachably attached by screw-type or crimp-type meter attaching / detaching members provided at both ends of the primary side piping member and the secondary side piping member. It is necessary to use one that meets the requirements. Therefore, although the dual meter unit of the present invention includes a unit that does not include a meter attaching / detaching member, since the diameter of the water meter to be attached may be determined in advance, it corresponds to the diameter of the target water meter. It also includes a dual meter unit in which meter attaching / detaching members are provided on the primary side piping member and the secondary side piping member.

  The primary side piping member and the secondary side piping member have a stop cock and a check valve arranged in the frame, and a secondary side connecting the primary side end connecting the water supply pipe and a lead-in pipe into the house. It is preferable that each end is provided on the frame so as to protrude to the outside of the frame. This is because the frame functions as a hoop that protects the dual meter unit after connection to the water meter from various stresses.

  By the way, although the water supply pipe branched from the water distribution pipe is connected to the primary side end of the primary side piping member, if a branch header is attached to the parallel primary side piping member, one water supply pipe is connected to the branch header. Just connect to the inlet. However, since the distribution pipe is relatively thin, for example, it may be assumed that a water supply pipe having a diameter suitable for a multi-unit of triple or quadruple type cannot be branched. Therefore, a branch header is provided at the primary end of each primary pipe member. The independent meter unit is also included in the dual meter unit of the present invention. In this case, it is possible to branch the same number of water supply pipes as the number of units corresponding to the diameter of the water distribution pipes, and connect each to the primary side end of each primary side piping member.

  Furthermore, in the present invention, means may be used in which a dual meter unit including a lower rod on which a frame is placed and an upper rod attached to and detached from the lower rod is configured.

  In this case, the lower arm is formed by raising a side wall around the bottom, and a pair of right and left ribs each having a plurality of engaging recesses for simultaneously fitting the front edge and the rear edge of the frame from above are provided on the bottom. It is preferable that By fitting the expansion / contraction-adjusted frame into the engagement recess, the frame is prevented from moving in the lower eyelid, and stress acting on the frame is distributed to the ribs via the front edge and the rear edge. Because it is possible.

  According to the present invention, it is possible to attach several kinds of water meters with different lengths.

The disassembled perspective view which showed one Embodiment of the flame | frame of this invention Partially cutaway plan view of a dual meter unit with multiple water meter connection units provided in parallel on the same frame Same side sectional view Partially cutaway plan view showing a state in which the dual meter unit of FIG. 2 is adapted to a water meter having a long overall length. Same side sectional view Partially cutaway plan view showing a state in which the dual meter unit of FIG. 2 is adapted to a water meter having a longer overall length than that of FIG. Same side sectional view The principal part expansion perspective view which showed another securing structure of a flame | frame Enlarged perspective view of the main part showing the slide structure of the frame A perspective view showing a flat frame as another example of the frame

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an embodiment of a frame F of the present invention, which is composed of a front frame 1 and a rear frame 2 divided on the primary side and the secondary side. The front frame 1 and the rear frame 2 have a U-shape in plan view having left and right side edges 1b and 2b at both ends of the front edge 1a and the rear edge 2a that are parallel on the primary side and the secondary side. The side edges 1b and 2b are faced and overlapped to form a rectangular frame with the top and bottom surfaces opened as a whole.

  The front edge portion 1a of the front frame 1 and the rear edge portion 2a of the rear frame 2 have coaxial insertion holes 1c for fixing a primary side piping member and a secondary side piping member, which will be described later, constituting a water meter connection unit. -2c is provided in parallel. In the figure, there are four insertion holes 1c and 2c in order to constitute a four-line dual meter unit for simultaneously connecting four water meters, but two to three insertion holes 1c and 2c are provided in parallel. It is also possible to use a dual-type or triple-type dual meter unit.

  The left and right side edge portions 1b of the front frame 1 are provided with a pair of upper and lower screw holes 1d into which a frame locking screw 3 is screwed in one place near the open end. On the other hand, the left and right side edge portions 2b of the rear frame 2 overlapping the outside are provided with first to third through holes 2d to 2f inserted through the screw holes 1d in the longitudinal direction of the side edge portions, that is, described later. A pair of upper and lower portions are provided along the extending and contracting direction of the frame to be operated. In this embodiment, since the lengths of the front edge 1a and the rear edge 2a of the front frame 1 and the rear frame 2 are the same, the left and right edges 2b of the rear frame 2 are used as the left and right edges of the front frame 1. The left and right side edge portions 2b are overlapped with the outside of the left and right side edge portions 1b of the front frame 1 by extending outward through a step 2g corresponding to the thickness of the portion 1b, and the three through holes are formed in the overlapping portions. 2d to 2f are provided.

  FIGS. 2 and 3 show a quadruple dual meter unit in which four sets of water meter connection units each including the primary side piping member 4 and the secondary side piping member 5 are provided in parallel on the frame F. FIG. Each connection unit has the same configuration, the primary side piping member 4 includes a water stop cock 4a, and the secondary side piping member 5 includes a check valve 5a. Further, a branch header 6 is attached to the primary side piping member 4 so as to be located outside the frame F and branch from four inflow ports 6b from one inflow port 6a.

  In the present embodiment, the lower rod 7 on which the frame F is placed in a state where the connection unit is assembled and the upper rod 8 fitted to the lower rod 7 are also constituent members of the dual meter unit. The lower rod 7 is a side wall 7b raised from the four circumferences of the bottom portion 7a. The bottom portion 7a is provided with a pair of ribs 7c parallel to the connection unit. Further, the rib 7c includes first to fourth ribs 7c. Engaging recesses 7d to 7g are formed.

  Engaging recesses 7d to 7f formed in the rib 7c of the lower collar 7 fit the frame F from above so that the frame F does not move back and forth, and the front frame 1 and the rear frame 2 after locking are not prepared. The backlash is regulated so as not to expand and contract. Of these, the first engaging recess 7d located on the most primary side is a portion into which the front edge 1a of the front frame 1 is fitted, and the rear edge 2b of the rear frame 2 that expands and contracts with the front edge 1a as a starting point is the first. One is selected from the second to fourth engaging recesses 7e to 7g and is fitted.

  Here, FIGS. 2 and 3 show a state in which the frame F is most shortened and is adapted to a short-circuit water meter M1 having a diameter of 13φ. That is, the overlap length between the left and right side edge portions 1b and 2b of the front frame 1 and the rear frame 2 is maximized, screwed at the position of the first through hole 2d, and both the frames 1 and 2 are connected. Yes. The rear edge 2b of the frame F is fitted in the second engagement recess 7e of the lower collar 7.

  On the other hand, in FIGS. 4 and 5, the front frame 1 and the rear frame 2 are connected to the second through-hole so as to be compatible with the long-sized water meter M2 having the same diameter of 13φ but having a longer overall length than the short specification. Screwed at the position of the hole 2e. The rear edge 2a of the rear frame 2 is fitted in the third engaging recess 7f of the lower collar 7.

  Further, FIGS. 6 and 7 are adapted to a water meter M3 having a diameter of 20φ which is longer than the 13φ water meter, and the front frame 1 and the rear frame 2 are extended to the maximum, and a third through hole is provided. Screwed at 2f. For the lower collar 7, the rear edge 2a of the rear frame 2 is fitted into the fourth engagement recess 7g.

  As described above, according to the embodiment, a plurality of types of water meters M1 to M3 having different lengths can be attached. Here, the water meter is detachably attached using a screw-type or crimp-type meter attaching / detaching member, but the 13φ water meter shown in FIGS. 2 and 4 and the 20φ water meter shown in FIG. 6 are compatible. The diameters of the meter attaching / detaching members 9 and 10 are also different. Therefore, the meter attaching / detaching members 9 and 10 do not need to be previously configured as the constituent members of the dual meter unit, and the meter attaching / detaching members 9 and 10 having an appropriate diameter with respect to the primary side piping member 4 and the secondary side piping member 5 are provided on site. You may make it attach.

  Moreover, in the said embodiment, the adaptation number of a water meter can also be increased by increasing the number of through-holes. The shape of the through hole does not have to be a perfect circle, and by making it an ellipse along the direction of expansion and contraction, it is possible to play and facilitate the insertion of screws, and within that range the degree of expansion and contraction of the front frame 1 and the rear frame 2 Fine adjustments can be made.

  Further, as shown in FIG. 8, this portion is formed as one long hole 11, whereby the front frame 1 and the rear frame 2 can be arbitrarily stretched. In addition, the front frame 1 and the rear frame 2 can be slid using the long hole 11 as a guide.

  As another configuration example having such a slide function, as shown in FIG. 9, a key groove 12 and a slidable portion are slidable on the overlapping surfaces of the left and right side edges 1b and 2b of the front frame 1 and the rear frame 2, respectively. A key 13 can be provided that engages the. In particular, if the key 13 is an angular axis having a quadrangular cross section, it is possible to prevent the front frame 1 and the rear frame 2 from rotating relative to each other with the key 13 as a fulcrum to cause an axial shift.

  Furthermore, in the said embodiment, although the flame | frame F was made into the wall shape which has height up and down, as shown in FIG. 10, it can also be set as the flat frame which made the thickness of the up-down direction thin.

  Furthermore, in the above-described embodiment, the branch header 4d is attached to the plurality of primary side piping members 4 as the connection structure of the water supply pipes. However, the branch header 4d is omitted and the same number of water supplies for each primary side piping member 4 It is also possible to connect the tubes individually. In particular, since the diameter of the distribution pipe that is the branching source of the water supply pipe is relatively small, it is effective when the diameter of the water supply pipe is less than the amount of water used corresponding to the number of stations.

  The check valve 5 a is not an essential component of the secondary side piping member 5, and may be omitted or may be a component of the primary side piping member 4.

F frame 1 front frame 1a front edge 1b side edge 1d screw hole 2 rear frame 2a rear edge 2b side edge 2d-2f through hole 3 screw 4 primary side piping member 4a stop cock 5 secondary side piping member 5a Check valve 6 Branch header 7 Lower rod 7a Bottom portion 7c Ribs 7d to 7g Engaging recess 8 Upper rod 9 Meter detachable member (primary side)
10 Meter attachment / detachment member (secondary side)
11 Long hole 12 Keyway 13 Key

Claims (9)

A frame in which a plurality of meter connection units having a water meter between the primary side piping member and the secondary side piping member including the water stopcock as an attachment / detachment portion of the water meter are provided in parallel,
A front frame and a rear frame divided into a primary side and a secondary side,
Each of the front frame and the rear frame is formed in a U-shape in a plan view having side edges that are connected to each other at both the left and right ends of the front edge and the rear edge that are parallel on the primary side and the secondary side,
The front edge and the rear edge are fixed frames for the primary side piping member and the secondary side piping member, respectively, and the distance between the front edge and the rear edge can be expanded and contracted. A frame of a dual meter unit characterized in that the parts are connected to each other. A screw hole is provided in a side edge portion of one of the front frame and the rear frame, and a plurality of through holes communicating with the screw holes are provided in a side edge portion of the other frame along the expansion / contraction direction, 2. The frame of a dual meter unit according to claim 1, wherein one of the through holes is selected and a screw is screwed into the screw hole to secure side edges of the front frame and the rear frame. The dual meter unit frame according to claim 2, wherein at least two screw holes and each through hole are provided in pairs. A screw hole is provided in the side edge of one of the front frame and the rear frame, and a long hole is provided in the side edge of the other frame corresponding to the screw hole along the expansion / contraction direction. The frame of the dual meter unit according to claim 1, wherein the side edges of the front frame and the rear frame are fastened together by screwing screws into the screw holes with a long hole interposed therebetween. The dual meter unit frame according to claim 4, wherein at least two screw holes and long holes are provided in pairs. 6. A key groove along a telescopic direction and a key that slidably engages with the key groove are provided on the overlapping surfaces of the side edges of the front frame and the rear frame, respectively. Double meter unit frame. A dual meter unit in which a primary piping member and a secondary piping member are provided on the frame according to any one of claims 1 to 6. 8. The dual meter unit according to claim 7, wherein a meter attaching / detaching member corresponding to the diameter of the water meter is provided on the primary side piping member and the secondary side piping member. A branch header is formed by branching a plurality of branch ports from a single inlet on the primary side, and a primary side piping member is connected to each of the branch ports of the branch header, and the branch header includes only the inlet. 9. The dual meter unit according to claim 7 or 8, wherein the dual meter unit is protruded outside.

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