JP2008184785A - Meter unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a meter unit enabling easy mounting of a meter with good sealability even in special meters. <P>SOLUTION: This meter unit comprises a first support mechanism having a closing valve on one side of a base body and a second support mechanism having a check valve on the other side. Support bodies with circular arc placing surfaces for supporting both end screw parts of a meter are formed on the first support mechanism side and the second support mechanism side, respectively. A holding member for holding and adjusting a meter is detachably fitted to one or both of the support bodies. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a meter unit including a meter for measuring water consumption and the like, and a device such as a shut-off valve and a connecting device disposed before and after the meter, particularly in the vicinity of a doorway of an apartment house or the like. The present invention relates to a meter unit for water supply and the like suitable for installation in a disposed pipe shaft.

  Conventionally, a storage space called a pipe shaft has been provided in the vicinity of a doorway of an apartment house or the like, and in this storage space, for example, a meter unit provided with a water meter for measuring water consumption Is installed in the middle of the water pipe. Since the water meter is obliged to be replaced after a predetermined period stipulated by the Measurement Law, it is attached to the meter unit in a replaceable manner by a fixing means such as a screw fixing type or a pressure fixing type.

  The screw fixing type fixing means has a structure in which the inner peripheral female screw part of the nut provided in the meter unit and the outer peripheral male screw part at both ends of the water meter are screwed together. It is necessary to use a tool for rotating the nut, and since the water meter rotates together with the nut as the nut rotates, always hold the water meter by hand during work. There was a problem in workability. Therefore, there is a tendency to adopt a crimping fixing type fixing means excellent in workability at present. This crimping-fixing-type fixing means is provided with a support mechanism for supporting both end thread portions of the water meter in the meter unit, and one support mechanism presses the end surface of one end thread portion of the water meter, In this structure, a meter is held between both support mechanisms. That is, after both end thread portions of the meter are supported by the two support bodies, the rotating member of the upstream (primary side) support mechanism is rotated to press the slide member against the end thread portion of the meter. Thereby, the end surface of the both-ends thread part of a meter is sealed by a support mechanism, and a meter is attached in a liquid-tight state.

  As for the meter, in addition to a normal type meter, a special type meter for a large city specification, a special use specification, etc. is distributed in the market. The inside diameter of both end screw parts of this special type meter is the same as the inside diameter of the end thread part of the normal type meter, but the outer diameter is smaller than the outside diameter of the end thread part of the normal type meter. . By the way, the two support bodies are formed so that the end faces of both end threaded portions can be satisfactorily sealed by the support mechanism when both end threaded portions of the normal type meter are placed. If both end screw portions are placed and the slide member is slid in this state, end face sealing is not sufficiently performed, and problems such as leakage occur. For this reason, even when a special meter is attached, a meter unit that can sufficiently perform end face sealing has been proposed (see, for example, Patent Documents 1 and 2).

  The meter unit described in Patent Document 1 is a thin annular ring that fits in the end screw portion of the meter on the contact surface of the slide member that contacts the end surface of the end screw portion of the meter and the support member of the other support mechanism. By projecting the fitting portions, the meter can be attached with a good sealing property in both cases of the normal type meter and the special type meter.

The meter unit described in Patent Document 2 is configured to accommodate a slidable position correction ring that is urged in a protruding direction by a spring on the inner surface of the slide member and the support member of the other support mechanism. The inner diameter of the position correction ring is slightly larger than the outer diameter of the end thread portion of the special type meter. Thereby, in the case of a normal type meter, the end face of the end screw portion of the meter contacts the position correction ring, the position correction ring slides to the back of the slide member and the support member, and the meter is attached with good sealing performance. . In the case of a special meter, the meter can be attached with good sealing performance by fitting the end screw portion of the meter into the position correction ring.
JP 2005-134137 A JP 2006-225984 A

  In the meter unit described in Patent Documents 1 and 2, when a special type meter is attached, the slide fitting and the annular fitting portion of the support member are fitted into the end screw portion of the meter, or the end screw portion of the meter is fitted. By fitting in the position correction ring, the position of the end screw part of the meter is positioned so that the seal is sufficiently performed, so the meter can be mounted with good sealing performance, However, since the support body is designed to support the end thread part of the normal type meter, the end thread part is not mounted in the state where the end thread part of the special type meter is placed on the support body. Since it is not in a state in which the annular fitting portion can be fitted in the portion or the end screw portion of the meter can be fitted in the position correction ring, when the meter is attached, the meter is lifted from the support body, for example, Meter The axis of the end screw portion, must be positioned on the axis coaxial with the support member. As described above, when the meter is attached, it is necessary to perform two operations, that is, a positioning operation for maintaining the meter in a lifted state (a state in which the meter is lifted) and a sliding operation for sliding the slide member. Therefore, the workability is poor, and the slide member is slid while the meter is lifted, so that the position of the end screw portion of the meter is shifted and the seal between the meter and the support member is not sufficiently performed. In some cases, a meter may be attached, and a problem such as leakage may occur due to a displacement of the screw portion or damage to the end face of the meter.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a meter unit capable of attaching a meter with a good sealing property by a simple operation even in a special meter. is there.

  In order to achieve the above object, a meter unit according to the present invention comprises a first support mechanism having a stop valve on one side of a base body and a second support mechanism having a check valve on the other side. The first support mechanism side and the second support mechanism side are each provided with a support body having an arcuate mounting surface that supports the threaded ends of the meter, and either or both of these support bodies, The holding member for meter holding adjustment is detachably attached.

  According to the present invention, the meter holding adjustment holding member is detachably attached to the support body. For example, when attaching a special meter, the meter holding adjustment holding member is used as the support body. When the end screw part of the special type meter is mounted on the support body, the end screw part of the meter is positioned in a state where the end face seal can be sufficiently performed, so that the meter positioning work is not required. . Therefore, even in a special type meter, the meter can be attached with a good sealing property by a simple operation.

  In the meter unit according to the present invention, the holding member is mounted on the placement surface and includes an arcuate placement portion on which the end screw portion of the meter is placed. In the meter unit according to the present invention, the support body is formed in an arc shape, and the meter holding adjustment holding member is formed by folding the mounting portion and both ends of the mounting portion. And a holding portion for holding the support body with the mounting portion. Moreover, the meter unit which concerns on this invention WHEREIN: It is preferable that the front-end | tip part of the said clamping part is formed as a projection part bent on the opposite side to the mounting part. In the meter unit according to the present invention, it is preferable that the circumferential width of the mounting portion is longer than the circumferential width of the mounting surface. In addition, the support body includes a first support member slidably provided on the first cylindrical member of the first support mechanism, and a second support member provided on the second cylindrical member of the second support mechanism. It is.

  On the other hand, the support body is a base portion protruding from the base body, and the holding member includes the mounting portion described above, and both end portions of the mounting portion extend along both side portions of the support body. It consists of the clamping part which clamps a receiving body. In the meter unit according to the present invention, an engagement portion that engages with a side portion of the support body and holds the meter holding adjustment holding member may be provided at a distal end portion of the clamping portion. preferable.

  As described above, according to the meter unit according to the present invention, since the holding member for adjusting and holding the meter is detachably attached to the support body, when attaching a special type meter, it is attached to the support body. If the end screw part of a special meter is placed on the holding member for meter holding adjustment, the end screw part of the meter is positioned in a state where the end face can be sufficiently sealed. The meter can be attached with good sealing performance.

  In addition, the meter holding adjustment holding member is mounted on the mounting surface and includes an arcuate mounting portion on which the end screw portion of the meter is mounted. It is easy to place it through the holding member for holding adjustment. Moreover, the holding member for meter holding adjustment can be attached to the support body in a state in which the holding member for meter holding adjustment is securely held by the mounting portion and the holding portion. In addition, since the tip end portion of the clamping portion is formed as a protrusion, the meter holding adjustment holding member can be easily attached and detached. In addition, since the circumferential width of the mounting portion is formed to be longer than the circumferential width of the mounting surface, when the meter holding adjustment holding member is attached to the support body, the meter holding adjustment holding The member can move in the circumferential direction and can be attached in a state where the mounting portion is crimped to the mounting surface of the support body by the clamping force between the clamping portion and the mounting portion, and a predetermined thick surface can be attached. It is possible to reliably adjust the diameters of both ends of the meter by the holding portion of the holding member, and to support and crimp the first and second support mechanisms.

  Further, the meter holding adjustment holding member protrudes from the base body in a state in which the meter holding adjustment holding member is securely held by being composed of a placing portion and a holding portion extending along both sides of the support body. Can be attached to the support. In addition, since the engaging portion that engages with the side portion of the support body is provided at the front end portion of the clamping portion, the meter holding adjustment holding member can be attached to the support body in a state of being held more securely. Can do.

  Hereinafter, an example of a meter unit according to the present invention will be described in detail with reference to the accompanying drawings.

  1 and 9 are views showing an example of a meter unit according to the present invention. As shown in FIGS. 1 and 9, the meter unit according to the present invention includes a base body 4, an upstream first support mechanism 5 and a downstream second support mechanism that are mounted to face the base body 4. 6 and. The meter unit 1 according to the present invention includes a meter that is installed in the middle of a pipe and measures the flow rate of the fluid flowing through the pipe. For example, the meter unit 1 is installed in the middle of a water pipe. In this case, the meter is a water meter, and in addition to the normal meter M1, a special meter M2 for large city specifications, special application specifications, etc. is distributed in the market. The inside diameters of both end screw portions M2a and M2b of the special type meter M2 are the same as the inside diameters of the end screw portions M1a and M1b of the normal type meter M1, but the outside diameter is the end screw portion M1a of the normal type meter M1 It is formed with a size smaller than the outer diameter of M1b. In the present invention, a water meter will be described as a meter, but the meter is not limited to this. Further, the meters M1 and M2 are both indicated by imaginary lines in FIGS.

  Although the shape of the base body 4 is not specifically limited, For example, it has the elongate base part 4a and is formed in the hollow shape of the cross-sectional substantially trapezoid shape which the bottom part was open | released. The base body 4 is stronger than the hollow shape having a rectangular cross section, and has sufficient strength to withstand the reaction force when holding the meters M1 and M2 while reducing the weight of the base body 4. preferable. The base body 4 is preferably made of, for example, ductile cast iron or the like, and the entire surface thereof is coated with an epoxy resin powder (a maximum film thickness of about 600 μm). Further, at both ends of the base body 4, notch portions 4 b are provided through which bolts (not shown) for fixing the base body 4 to the floor or the like are passed. In the vicinity of both end portions of the base portion 4a, holding portions 2 and 3 that are erected from the base portion 4a via a gently curved surface portion are provided.

  The holding portions 2 and 3 are to which the first support mechanism 5 and the second support mechanism 6 are attached, and the shape thereof is not particularly limited. Holes 2a and 3a are provided. The periphery of the hole edges of the mounting holes 2a and 3a are formed in a flat shape, and a flange portion described later is provided on the first cylindrical member 7 of the first support mechanism 5 and the second cylindrical member 11 of the second support mechanism 6. 7a and 11b, and fixing nuts 16 and 17 used when the first cylindrical member 7 and the second cylindrical member 11 are fixed to the mounting holes 2a and 3a, respectively, come into contact with this planar shape. .

  The first support mechanism 5 is not particularly limited as long as the first support mechanism 5 can detachably hold the meters M1 and M2 in an appropriate state as shown in FIGS. A first cylindrical member 7 attached through the attachment hole 2a, a slide member 9 inserted in the first cylindrical member 7 so as to be slidable (movable back and forth) in the axial direction, and the slide member 9 The first end 8 and the first cylindrical member 7 are rotatably mounted on the outer periphery of the first cylindrical member 7 so as to move the slide member 9 forward and backward. And a rotating member 10 for causing the rotation.

  A flange portion 7 a is provided on the outer periphery of the first tubular member 7, and when the first tubular member 7 is inserted into the mounting hole 2 a of the holding portion 2 from the primary side, the flange portion 7 a It engages with the edge of the mounting hole. A male screw portion (parallel male screw) 7b is formed on the outer circumference of the first cylindrical member 7 on the meter side, and a fixing nut 16 for fixing the first cylindrical member 7 to the holding portion 2, and the first nut A rotating member 10 for advancing and retracting the slide member 9 inserted into the one cylindrical member 7 from the first cylindrical member 7 is screwed.

  The slide member 9 includes a cylindrical portion 9 a inserted into the first cylindrical member 7 and an annular flange portion 9 b engaged with the rotating member 10. The cylindrical portion 9a is in sliding contact with the inner peripheral surface of the first cylindrical member 7 through the O-ring 18 so as to be slidable in the axial direction. The annular flange portion 9 b is formed to have a larger diameter than the male screw portion 7 b formed on the outer periphery of the first tubular member 7. On the meter side end surface 9c of the annular flange portion 9b, a holding surface 9d corresponding to the outer diameter of the end screw portion M1a on the upstream side of the meter M1 is formed in an inlay structure that is one step lower than the meter side end surface 9c. The clamping surface 9d is provided with an O-ring 19 that seals between the meters M1 and M2. Note that only the clamping surface 9d may be cut, and the meter side end surface 9c may be an as-cast surface or a forged surface, and the seal member is not limited to the O-ring 19, and other seal members may be used. Also good.

  At a position below the meter-side end surface 9c of the slide member 9, an arcuate support body 8 that supports the end screw portion M1a on the upstream side of the normal meter M1 is integrally provided. An engaging groove 8 a extending in the advancing / retreating direction of the slide member 9 is provided in the central portion which is the lowermost portion of the support body 8. A cylindrical projection 20 projecting from the upper surface of the base body 4 is engaged with the engagement groove 8a, and the slide member 9 is prevented from rotating along with the rotation of the rotary member 10. 9 slides in the forward / backward direction.

  On the inner periphery of the rotating member 10, a female screw portion 10 a that is screwed with a male screw portion 7 b formed on the outer periphery of the first cylindrical member 7 is formed. The meter side of the female screw portion 10a is formed as a stepped surface 10b having a large diameter portion. When the rotating member 10 advances, the stepped surface 10b serves as a back surface of the annular flange portion 9b of the slide member 9. It comes to press. Further, the outer surface of the annular flange portion 9 b of the slide member 9 is formed so as to be inscribed in the inner surface of the large diameter portion of the rotating member 10. The rotating member 10 is screwed to the first tubular member 7 so as to be able to rotate while being aligned by the slide member 9. A retaining ring 21 for locking the annular flange portion 9b of the slide member 9 is fitted on the inner periphery of the meter side end of the rotary member 10, and the slide member 9 moves backward as the rotary member 10 rotates. It has come to be able to do. In addition, fin-shaped gripping portions 10c for manually operating the rotating member 10 are provided radially on the outer peripheral surface of the rotating member 10, and through-holes 10d are provided in each gripping portion 10c. The through hole 10d and the hole 2b provided on the upper part of the holding part 2 can be fastened with a binding band or the like (not shown) to prevent inadvertent rotation of the rotating member 10, and a suitable clamping state of the water meter M Can be reliably maintained.

  An elbow tube 22 bent at 90 degrees is extended to the first tubular member 7, and even if the first tubular member 7 is fixed to the holding portion 2, the elbow tube 22 is oriented in the direction. In order to be able to change, a washer 23 made of an elastic member such as NBR is interposed between the holding portion 2 and the fixing nut 16, and the elastic force of the washer 23 allows an appropriate friction without removing the fixing nut 16. The direction of the elbow tube 22 can be freely changed under force. Further, a union nut 24 is provided at the upstream end of the elbow 22 pipe, so that a stop cock 25, a pressure reducing valve (not shown), and the like can be connected with their orientations adjusted appropriately. ing. Thereby, the water stop cock 25, a connection tool, etc. can be provided as a unit. In addition, the code | symbol 26 has shown the pipe end anticorrosion core in the figure.

  As shown in FIGS. 1, 3 and 9, the second support mechanism 6 includes, for example, a second cylindrical member 11 attached to the holding portion 3 via the attachment hole 3 a and the second cylindrical member. A fixed nut 17 screwed on the outer circumference of the meter side of the meter 11, and an arcuate second support body 12 protruding from the fixed nut 17 and supporting the secondary side end thread portion M1b of the normal type meter M1; And a check valve cartridge 14 that is housed and held inside the second cylindrical member 11 by screwing the nut member 13.

  A flange portion 11 b is provided on the outer periphery of the second cylindrical member 11, and when the second cylindrical member 11 is inserted into the mounting hole 3 a of the holding portion 3 from the primary side, the flange portion 11 b is connected to the holding portion 3. It is locked to the edge of the mounting hole. A male screw part (parallel male screw) 11c is formed on the outer periphery of the second cylindrical member 11 on the secondary side, and the fixing nut 17 is screwed when the second cylindrical member 11 is fixed to the holding part 3. Is done. Further, a pipe internal thread part 11 d is formed on the inner periphery of the secondary side end part, and a downstream pipe can be connected via the pipe end anticorrosion core 26. The second cylindrical member 11 has a cylindrical portion 11e extending on the primary side, and a check valve cartridge 14 is accommodated in the cylindrical portion 11e. Further, a male screw portion 11f that is screwed with the female screw portion 13b of the nut member 13 is formed on the outer periphery of the cylindrical portion 11e, and the cylindrical portion 11e and the nut member 13 are connected to the meter side from the male screw portion 11f. An O-ring 27 for sealing is provided.

  On the inner periphery of the nut member 13, a stepped surface 13 c that fits with the end of the check valve cartridge 14 and an inner end surface 13 a that contacts the outer end surface 11 a of the second cylindrical member 11 that is screwed are provided. ing. The check valve cartridge 14 is liquid-tightly fitted to the stepped surface 13c of the nut member 13 using the elastic force of the O-ring 28 disposed on the outer periphery of the valve seat. When the nut member 13 is removed, the check valve cartridge 14 can be taken out together with the nut member 13.

  On the meter-side end surface 13d of the nut member 13, a clamping surface 13e corresponding to the outer diameter of the end screw portion M1b on the downstream side of the meter M1 is formed in an inlay structure that is one step lower than the meter-side end surface 13d. The clamping surface 13e is provided with an O-ring 29 that seals between the meters M1 and M2. The clamping surface 13e may be cut and the meter side end surface 13d may be a cast or forged surface, and the seal member is not limited to the O-ring 29, and other seal members may be used. Good.

  On the meter-side end face 13d of the nut member 13, an arcuate second support body 12 that supports the end screw portion M1b on the downstream side of the normal meter M1 is projected. When the nut member 13 is screwed to the second cylindrical member 11, the position where the outer end surface 11a of the second cylindrical member 11 and the inner end surface 13a of the nut member 13 are in contact with each other is the screwing end position. The second support body 12 projecting from the nut member 13 is set at a position below the nut member 13 which is a position having horizontality, and the end screw portion M1b of the normal meter M1 is supported at an appropriate position. Is formed. Accordingly, the nut member 13 and the second tubular member 11 are screwed together by manual rotation of the nut member 13 using the handle 15 provided on the nut member 13, and the inner end surface 13a of the nut member 13 is the first end. When the two cylindrical members 11 come into contact with the outer end surface 11a, the receiving surface 12 at this position is surely arranged at an appropriate position having a level, so that the nut member 13 screwed to the second cylindrical member 11 is secured. The levelness of will be reproduced reliably.

  A groove portion 12a that engages with a rib M3 projecting from the bottom of the downstream side of the meters M1 and M2 is formed at the tip portion of the second support body 12. The groove 12a is formed so as to be always engaged with the rib M3 of the meters M1 and M2, and the meters M1 and M2 are provided between the first support mechanism 5 on the upstream side and the second support mechanism 6 on the downstream side. Regardless of the position, the engagement state between the rib M3 of the meters M1 and M2 and the groove portion 12a is maintained, and the meters M1 and M2 are tilted or rotated in the circumferential direction before being held under pressure. Therefore, the meters M1 and M2 can be held under pressure in an appropriate state.

  A handle 15 is provided on the outer peripheral surface of the nut member 13 to detach the nut member 13 and the second cylindrical member 11 by manual operation. In the handle 15, gripping portions 15 a are radially provided every 90 degrees in the circumferential direction of the top, bottom, left, and right at an appropriate position having a level where the receiving surface 12 is at the bottom. The grip portion 15a is formed so as to cover the formation region of the female screw portion 13b formed on the inner peripheral surface, thereby minimizing the length of the nut member 13 in the axial direction. The number, shape, and the like of the gripping portions 15a are arbitrary. Preferably, when the receiving surface 12 is disposed at an appropriate position having a level, it is preferable to provide at least a pair of gripping portions 15a having the level at this position. . Thereby, for example, when the second cylindrical member 11 screwed with the nut member 13 is positioned and fixed to the holding portion 3, it can be arranged in an appropriate state while checking the level of the gripping portion 15a. The nut member 13 can be positioned at an appropriate position with respect to the circumferential direction. In this example, the second tubular member 11 is positioned in the rotational direction at the appropriate position with respect to the holding part 3, and the fixing pin 30 is fitted into the pin hole 3 b provided in the upper part of the holding part 3. After being fixed so as not to rotate, it is fixed in a state where the fixing nut 17 is positioned in the pipe axis direction.

  A feature of the meter unit 1 according to the present invention is that the first support mechanism 5 side and the second support mechanism 6 side have arcuate placement surfaces 8b and 12b that support the both-end screw portions M1a and M1b of the meter M1. The support bodies 8 and 12 are provided, respectively, and the meter holding adjustment holding member 40 is detachably attached to one or both of the support bodies 8 and 12.

  When the first support body 8 and the second support body 12 support the both-end screw portions M1a and M1b of the normal meter M1 (when mounted on the mounting surfaces 8b and 12b), both ends of the meter M1 The end screw portions M1a and M1b are positioned so that end face sealing of the screw portions M1a and M1b can be sufficiently performed. That is, the first support body 8 and the second support body 12 are formed so that end face seals of the both-end screw parts M1a and M1b placed can be sufficiently performed, and preferably the both-end screw parts placed. The axial centers of M1a and M1b are formed so as to be coaxial with the axial center of the slide member 9 (first cylindrical member 7) and the axial center of the nut member 13 (second cylindrical member 11). Although the 1st support body 8 and the 2nd support body 12 are the circular-arc-shaped members protruded from the slide member 9 and the nut member 13 as mentioned above, it is not limited to this. The mounting surfaces 8b and 12b, which are the inner surfaces of the first support body 8 and the second support body 12, have an arc shape with a diameter slightly larger than the outer diameter of the end thread portions M1a and M1b of the normal meter M1. Preferably it is formed. It is preferable that the 1st support body 8 and the 2nd support body 12 are formed with the thickness and the width | variety of a circular arc substantially the same dimension. The axial lengths of the first support body 8 and the second support body 12 are not particularly limited, and are formed with arbitrary dimensions.

  The meter holding adjustment holding member 40 may be detachably attached to one of the first support body 8 and the second support body 12, but is attachable to and detachable from both of the support bodies 8 and 12. It is preferable that it is attached. 1 to 6, the meter holding adjustment holding member 40 is detachably attached to the first support body 8 and the second support body 12, and the special type meter M2 is attached to the meter unit 1 as shown in FIG. It is attached to the 1st support body 8 and the 2nd support body 12 when attaching to. When the meter holding adjustment holding member 40 is attached to the first support body 8 and the second support body 12, the end thread portions M2a and M2b of the special meter M2 are placed on the meter holding adjustment holding member 40. When mounted, the end screw portions M2a, M2b are formed so as to be positioned so that end face seals of the end screw portions M2a, M2b of the special type meter M2 can be sufficiently performed, and the end screw portions M2a, It is preferable that the shaft center of M2b and the shaft center of the slide member 9 or the shaft center of the nut member 13 be formed coaxially.

  As the holding member 40 for adjusting and holding the meter, for example, the end screw portions M2a and M2b of the special meter M2 are placed on the mounting surfaces 8b and 12b of the first support body 8 and the second support body 12. An arcuate placement portion 41 to be placed and a holding portion 42 formed by folding both end portions of the placement portion 41 to the outer surface side of the first support body 8 or the second support body 12. The meter holding / adjusting holding member 40 is preferably formed of a flexible material such as polyacetal resin or polycarbonate resin, and the first support body 8 and the first supporting body 8 are formed by the sandwiching portion 42 and the mounting portion 41. The interval between the holding portion 42 and the mounting portion 41 is formed with a dimension smaller than the thickness of the first support body 8 and the second support body 12 so that the two support bodies 12 are clamped and attached. . Here, the thickness in the radial direction of the first support body 8 and the second support body 12 varies depending on the function and molding method of each support body. For example, the first support body 8 has a thickness based on the relationship between the rotation prevention function by the protrusion 20 and the outer diameter determined by cutting as described above, and the second support body 12 has a meter M1, The thickness is based on the function of preventing the rotation of M2 and the outer diameter determined by casting. Since the meter holding adjustment holding member 40 according to the present invention has flexibility as described above, the meter holding adjustment holding member 40 having the same shape can be used even if there is a difference in thickness between the support members. It can respond, and can be clamped by each support body by each clamping part 42 and mounting part 41. FIG. The meter holding adjustment holding member 40 may be made of a metal having elasticity or toughness, such as a stainless steel plate or a phosphor bronze plate. FIG. 4 is a view showing a state in which the slide member 9 is advanced.

  The mounting portion 41 substantially supports the end screw portions M2a and M2b of the special meter M2. The outer surface of the mounting portion 41 is formed with a diameter slightly smaller than the diameter of the mounting surfaces 8b and 12b of the support bodies 8 and 12, and the inner surface of the mounting portion 41 includes an end screw portion M2a of the special meter M2, It is preferably formed with a diameter slightly larger than the outer diameter of M2b. Moreover, it is preferable that the mounting part 41 is formed longer than the circumferential width of the mounting surfaces 8 b and 12 b of the first support body 8 or the second support body 12. That is, the width between the inner folded portions where both end portions of the mounting portion 41 are folded is formed longer than the circumferential width of the mounting surfaces 8b and 12b of the first support body 8 or the second support body 12. It is preferable that Accordingly, when the meter holding adjustment holding member 40 is attached to the first support body 8 or the second support body 12, the meter holding adjustment holding member 40 can move in the circumferential direction, and the holding force by the holding portion 42 and the mounting portion 41. Thus, the mounting portion 41 is attached in a state of being closely attached so as to be pressure-bonded to the mounting surfaces 8 b and 12 b of the support bodies 8 and 12.

It is preferable that the front end portion of the sandwiching portion 42 is formed as a protruding portion 43 that is bent to the opposite side to the placement portion 41. Thereby, it becomes easy to flex the clamping part 42 with respect to the mounting part 41. The extending length of the clamping part 42 is such that both the clamping part 42 and the mounting part 41 can clamp the meter holding adjustment holding member 40 between the first support body 8 and the second support body 12 and When the protrusion 43 at the tip of the portion 42 is flexed in a direction away from each other (expanded), it covers the inner surface of the first support body 8 or the second support body 12 and holds the meter holding adjustment holding member 40. It is preferable that it is formed in the dimension which can attach. Thereby, the attachment / detachment of the meter holding adjustment holding member 40 can be performed from two directions from the inner surface and the distal end portion of the first support body 8 or the second support body 12. As an example of a structure in which the meter holding adjustment holding member 40 can be covered from the inner surface of the first support body 8 or the second support body 12, as shown in FIG. In a state where one clamping part 42 is locked to one end 8 c of the first support body 8, the other clamping part 42 is formed to be located outside the one end 8 d of the first support body 8. ing. As described above, since the meter holding adjustment holding member 40 can move in the circumferential direction with respect to the first support body 8 or the second support body 12, the meter holding adjustment member can be used at the above-described position. By attaching the holding member 40 to each support body and moving in the circumferential direction, the holding member 40 can be easily arranged at a position that does not come off the inner surface side.
When the protrusion 43 is formed at the tip of the clamping part 42 and the meter holding adjustment holding member 40 is attached to the support body, the protrusion 43 is flexed in a direction away from the mounting part 41. The other clamping part 42 may be formed so as to be located outside the other end 8d of the first support 8.

  When the normal meter M1 is attached to the meter unit 1 according to the present invention, when the meter holding adjustment holding member 40 is attached to the first support body 8 and the second support body 12, this meter holding adjustment use The holding member 40 is removed from the first support body 8 and the second support body 12. This removal is performed by placing the first support body 8 and the second support body 12 in a state in which the protrusions 43 of the both sandwiching portions 42 are flexed in a direction away from each other (the sandwiching portion 42 is expanded). The meter holding adjustment holding member 40 may be moved away from the tip ends of the first support body 8 and the second support body 12 and slid in the axial direction. You may make it carry out. Thus, the meter holding adjustment holding member 40 can be easily removed simply by expanding the clamping portion 42 or sliding the meter holding adjustment holding member 40.

  The both-end screw portions M1a and M1b of the normal meter M1 are placed on the placement surfaces 8b and 12b of the first support body 8 and the second support body 12 in a state where the meter holding adjustment holding member 40 is not attached. (See FIG. 9). This placement is performed by fitting the rib M3 of the normal type meter M1 into the groove 12a formed on the receiving surface 12 of the second support mechanism 6, so that the directivity of the normal type meter M1 is confirmed and the normal type meter M1 is provided. It is possible to prevent rotation or lateral displacement. At this time, since the mounting surfaces 8b and 12b are formed in an arc shape, the end screw portions M1a and M1b of the normal meter M1 are easily mounted on the first support body 8 and the second support body 12. easy. Further, only by placing the normal type meter M1 on the first support body 8 and the second support body 12, for example, the shaft centers of the both-end screw portions M1a and M1b of the normal type meter M1 and the slide member 9 (first Since the axial center of the cylindrical member 7) and the axial center of the nut member 13 (second cylindrical member 11) are coaxially positioned, the meter positioning operation for positioning the meter so that end face sealing is sufficiently performed Is unnecessary.

  After the meter M1 is placed, the rotating member 10 of the first support mechanism 5 is manually rotated via the handle 10c to rotate in the arbitrary direction with respect to the first cylindrical member 7, and the slide member 9 is slid in the protruding direction. Let (move forward). Then, the slide member 9 comes into contact with the end face of the end thread portion M1a of the meter M1, and the meter M1 is pressed downstream, and the holding face 9d of the slide member 9 and the holding face 13e of the nut member 13 M1 is clamped, and O-rings 19 and 29 attached to the clamping surfaces 9d and 13e respectively seal the clamping surfaces 9d and 13e and the end faces of both end screw portions M1a and M1b of the meter M1 in a liquid-tight manner, A meter M1 is attached to the meter unit 1. As described above, since the normal meter M1 can be attached only by rotating the rotating member 10 without performing the positioning operation of the meter, the attachment of the normal meter M1 to the meter unit 1 is simple. Then, by opening the flow path to the water main, and then turning the handle 25a of the stop cock 25 provided upstream of the first support mechanism 5 in an arbitrary direction, rotating the ball 25b to flow the tap water, The flow rate of the flowing tap water can be measured by the meter M1.

  When removing the normal meter M1 from the meter unit 1, the handle 25a of the stop cock 25 is turned in an arbitrary direction, the ball 25b is rotated to close the pipe, and the water main and the meter M1 are closed. After that, the rotary member 10 of the first support mechanism 5 is rotated to retract the slide member 9 to release the force holding the meter M1 so that the normal meter M1 can be detached. Accordingly, the meter M1 can be easily detached from the meter unit 1.

  Next, when the special meter M2 is attached, when the meter holding adjustment holding member 40 is not attached to the first support body 8 and the second support body 12, the meter holding adjustment holding member 40 is attached to the first support body 8 and the second support body 12. Attached to the receiver 8 and the second support 12. In this attachment, the mounting surfaces of the first support body 8 and the second support body 12 in a state in which the protrusions 43 of the both holding portions 42 are flexed in a direction away from each other (the holding portion 42 is expanded). The meter support adjustment holding member 40 is placed on the first support so that the first support 8 and the second support 12 are inserted between the mounting portion 41 and the holding portion 42. It slides from the front-end | tip part of the receiving body 8 and the 2nd support body 12 to the back. Thus, the meter holding adjustment holding member 40 can be easily attached to the first support body 8 and the second support body 12 simply by expanding the holding portion 42 or sliding the meter holding adjustment holding member 40. Can be done. In addition, the meter holding adjustment holding member 40 includes a placement portion 41 and a clamping portion 42, and the circumferential width of the placement portion 41 is longer than the circumferential width of the placement surfaces 8b and 12b. Therefore, when mounted on the first support body 8 or the second support body 12, the mounting section 41 is supported by the clamping force of the clamping section 42 and the mounting section 41 and can move in the circumferential direction. It can be attached in a state of being closely attached so as to be crimped to the mounting surfaces 8b and 12b of the receivers 8 and 12.

  After the meter holding adjustment holding member 40 is attached, the both-end screw portions M2a and M2b of the special meter M2 are placed on the first support body 8 and the second support body 12 via the meter holding adjustment holding member 40. (See FIG. 1). This placement is performed by fitting the rib M3 of the meter M2 into the groove 12a formed on the receiving surface 12 of the second support mechanism 6, so that the directionality of the meter M2 can be confirmed and the rotation or lateral displacement of the meter M2 can be prevented. Can be planned. At this time, since the mounting portion 41 is formed in an arc shape, the end screw portions M2a and M2b of the meter M2 are connected to the first support body 8 and the second support body 12 via the meter holding adjustment holding member 40. And easy to place. Further, only by placing the special meter M2 on the meter holding / adjusting holding member 40, for example, the shaft centers of the both-end screw portions M2a and M2b of the meter M2, the shaft center of the slide member 9, and the shaft center of the nut member 13 Is positioned on the same axis, the meter positioning work for positioning the meter M2 is not necessary so that the end face seal is sufficiently performed.

  After placing the meter M2, the rotating member 10 of the first support mechanism 5 is manually rotated via the handle 10c in any direction with respect to the first tubular member 7, and the slide member 9 is slid in the protruding direction. Let (move forward). Then, the slide member 9 comes into contact with the end surface of the end screw portion M2a of the meter M2, and the meter M2 is pressed downstream, and the clamping surface 9d of the sliding member 9 and the clamping surface 13e of the nut member 13 make this special meter. M2 is clamped, and the O-rings 19 and 29 attached to the clamping surfaces 9d and 13e are sealed in a liquid-tight manner with the clamping surfaces 9d and 13e and the end screw portions M2a and M2b of the meter M2, respectively. A special meter M2 is attached to the meter unit 1. Thus, since the meter M2 can be attached only by the operation of rotating the rotating member without performing the positioning operation, the special meter M2 can be easily attached to the meter unit 1. When removing the special type meter M2, as in the case of the normal type meter M1, the rotary member 10 of the first support mechanism 5 is rotated to retract the slide member 9, and the force that holds the meter M2 under pressure. By canceling, the meter M2 can be easily detached from the meter unit 1.

  Therefore, when the meter unit 1 according to the present invention supports the special meter M2 on the first support body 8 and the second support body 12 to which the meter holding adjustment holding member 40 is attached, Since the meter M2 is positioned in a state where the end face seal can be sufficiently performed, the meter positioning operation becomes unnecessary, and the meter M2 mounting operation is simple. As a result, the meter M2 can be attached with a good sealing property by a simple operation in the special meter M2 as well as the attachment of the normal meter M1. In addition, when the normal type meter M1 is mounted with the meter holding adjustment holding member 40 attached to the first support body 8 and the second support body 12, the meter can be clearly indicated that the meter is erroneously mounted. A holding member 40 for holding adjustment may be formed. For example, as shown in FIG. 8, the both ends threaded portion M1a of the normal type meter M1 rides on the curved portion 41a that is the connection portion between the mounting surface 41 and the sandwiching portion 42, and the axis P of the both end threaded portion M1a, By shifting the axis Q of the slide member 9 (first cylindrical member 7) of the first support mechanism and leaking water without sealing at both ends, it may be possible to clearly indicate that it is erroneously mounted.

  10 and 11 are views showing an example of the second meter unit according to the present invention. As shown in FIG. 10, the second meter unit is formed in a base shape in which a support body 50 protrudes from the base body 4, and a meter holding adjustment holding member 60 is detachably attached to the support body 50. It is characterized by being. The configuration of the second meter unit 100 is the same as that of the meter unit 1 except that the support body 50 protrudes from the base body 4. The support bodies 50 are respectively provided on the base bodies 4 in the vicinity of the slide member 9 and the nut member 13. As shown in FIGS. 10 and 11, the upper surface of the support body 50 is formed as a mounting surface 51, and the mounting surface 51 corresponds to the first support body 8 and the second support body 12. Similarly to the mounting surfaces 8b and 12b, it is preferably formed in a circular arc shape with a diameter slightly larger than the outer diameter of the end screw portions M1a and M1b of the normal meter M1. Further, the mounting surface 51 is formed so that when both end screw portions M1a, M1b of the normal type meter M1 are mounted, end surface sealing of the both end screw portions M1a, M1b can be sufficiently performed. The axial centers of the both-end screw portions M1a and M1b that are placed are coaxial with the axial center of the slide member 9 (first cylindrical member 7) and the axial center of the nut member 13 (second cylindrical member 11). It is formed as follows.

  A meter holding / adjusting holding member 60 is detachably attached to one or both of the two support bodies 50, preferably both. Similar to the meter holding adjustment holding member 40, the meter holding adjustment holding member 60 is attached to the support body 50 when the special type meter M2 is attached, and the end thread portion M2a of the special type meter M2, The end screw portions M2a and M2b are positioned so that the end face seal of M2b can be sufficiently performed. Although it does not specifically limit as the holding member 60 for meter holding | maintenance adjustment, For example, it is located on the mounting surface 51 of the support body 50, and the circular arc shape in which the end screw parts M2a and M2b of the special type meter M2 are mounted. The mounting portion 61 includes a holding portion 62 formed so that both end portions of the mounting portion 61 extend along both end screw portions M2a and M2b of the support body 50. The holding member 60 for adjusting and holding the meter is preferably formed of a flexible material, as in the previous example, and is attached to the support body 50 by being sandwiched by the two holding portions 62. . It is preferable that an engagement portion that engages with both side portions of the support body 50 and holds the holding member 60 for meter holding adjustment is provided at the distal end portion of the holding portion 62. The engaging portion is, for example, an engaging protrusion 63, and an engaging recess 53 that engages with the engaging protrusion 63 is provided on a side portion of the support body 50. Thus, by providing the engaging protrusion 63, the meter holding adjustment holding member 60 can be attached in a state of being securely held by the support body 50.

  Even if comprised in this way, there exists an effect similar to the above-mentioned. That is, when the normal type meter M1 is attached, the both-end screw portions M1a and M1b of the normal type meter M1 are placed on the placement surface 51 of the support body 50 to which the meter holding adjustment holding member 60 is not attached. At this time, since the placement surface 51 is formed in an arc shape, the end screw portions M1a and M1b of the meter M1 can be easily placed on the support body 50. Further, only by placing the normal type meter M1 on the first support body 8 and the second support body 12, for example, the shaft centers of the both-end screw portions M1a and M1b of the normal type meter M1 and the slide member 9 (first Since the axial center of the cylindrical member 7) and the axial center of the nut member 13 (second cylindrical member 11) are coaxially positioned, the meter positioning operation for positioning the meter so that end face sealing is sufficiently performed Is unnecessary.

  Further, when the special type meter M2 is attached, holding for adjusting the meter holding is performed on the mounting surface 51 of the support body 50 in a state where both the holding portions 62 are flexed in a direction away from each other (a state where the holding portions 62 are expanded). The member 50 is put on, and the engagement protrusion 63 of the holding portion 62 is engaged with the engagement recess 53 of the support body 50. After the meter holding adjustment holding member 50 is attached, the both-end screw portions M2a and M2b of the special meter M2 are placed on the support body 50 through the meter holding adjustment holding member 60. At this time, since the placement portion 61 is formed in an arc shape, the end screw portions M2a and M2b of the meter M2 can be easily placed on the support body 50 via the meter holding adjustment holding member 60. Further, only by placing the special meter M2 on the meter holding / adjusting holding member 60, for example, the shaft center of the both-end screw portions M2a and M2b of the meter M2, the shaft center of the slide member 9, and the shaft center of the nut member 13 Is positioned on the same axis, the meter positioning work for positioning the meter M2 is not necessary so that the end face seal is sufficiently performed. Therefore, since the meter M2 can be attached only by the operation of rotating the rotating member 10, the special meter M2 can be easily attached to the second meter unit 100. That is, the second meter unit 100 according to the present invention can be securely attached in a state where the meter M2 is aligned with a simple operation even in the special type meter M2 in the same manner as the attachment of the normal type meter M1.

It is sectional drawing which shows an example of the meter unit which concerns on this invention. It is sectional drawing which shows an example of the 1st support mechanism which concerns on this invention. It is sectional drawing which shows an example of the 2nd support mechanism which concerns on this invention. It is a perspective view which shows the state which attached the holding member for meter holding adjustment which concerns on this invention to the 1st receiving part. It is a figure which shows the state which attached the holding member for meter holding adjustment which concerns on this invention to the 2nd receiving part, (a) is a perspective view, (b) is a front view. It is a perspective view which shows an example of the holding member for meter holding adjustment which concerns on this invention. The figure which showed the structure which can cover the support body with the holding member for meter holding adjustment which concerns on this invention The figure which showed the state which the normal type meter got on the holding member for meter holding adjustment concerning the present invention, and the shaft center shifted. It is sectional drawing which is a meter unit which concerns on this invention, and shows the state where the holding member for meter holding | maintenance adjustment is not attached. It is a perspective view which shows an example of the principal part of the 2nd meter unit which concerns on this invention. It is sectional drawing which shows the state which attached the holding member for meter holding | maintenance adjustment to the 2nd support body which concerns on this invention, and showed the engagement state of the engagement recessed part and the engagement protrusion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Meter unit 4 Base body 5 1st support mechanism 6 2nd support mechanism 7 1st cylindrical member 8 1st support body 8b mounting surface 9 Slide member 10 Rotating member 11 2nd cylindrical member 12 2nd support body 12b Mounting surface 40 Meter holding adjustment holding member 41 Mounting portion 42 Holding portion 43 Protruding portion 50 Supporting body 51 Mounting surface 53 Engaging recess 60 Meter holding adjustment holding member 61 Mounting portion 62 Holding portion 63 Engaging Protrusion 100 Meter unit

Claims (8)

  In a meter unit having a first support mechanism having a stop valve on one side of the base body and a second support mechanism having a check valve on the other side, a meter unit is provided on the first support mechanism side and the second support mechanism side. A support body having an arcuate mounting surface that supports both end thread portions is provided, and a meter holding adjustment holding member is detachably attached to one or both of the support bodies. Meter unit to be used.   The meter unit according to claim 1, wherein the holding member is mounted on the placement surface and includes an arcuate placement portion on which a screw portion of the meter is placed.   The support body is formed in an arc shape, and the holding member is formed by folding the mounting portion and both ends of the mounting portion, and sandwiches the support body with the mounting portion. The meter unit according to claim 1, comprising a clamping unit.   The meter unit according to any one of claims 1 to 3, wherein a front end portion of the clamping portion is formed as a protrusion bent to the opposite side to the placement portion.   The meter unit according to any one of claims 2 to 4, wherein a width of the mounting portion in the circumferential direction is formed to be longer than a width of the mounting surface in the circumferential direction.   The support body is configured such that a first support body is slidably provided on a first cylindrical member of a first support mechanism, and a second support body is provided on a second cylindrical member of a second support mechanism. The meter unit according to any one of claims 1 to 5.   The said support body is a base part protruded from the said base body, The said holding member for meter holding | maintenance adjustment is a mounting part mentioned above, and both ends of this mounting part are along the both sides of the said support body. The meter unit according to claim 1, further comprising a clamping portion that extends and clamps the support body.   The meter unit according to claim 7, wherein an engaging portion that engages with a side portion of the support body and holds the meter holding adjustment holding member is provided at a distal end portion of the clamping portion.

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