JP2007024903A - Installation unit for flow meter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation unit for a flow meter that can retain the water meter over a long time by a clipping method without looseness, and facilitates a moving operation of a slide member which is performed when the flow meter is attached and detached. <P>SOLUTION: An inflow passage forming member 22 with an interior passage formed at one side of the mounting surface 26 of a mounting frame 21, and an outflow passage forming member 23 with an interior passage formed at the other side are fixed with bolts. Engaging holes 29a and 29b are formed on the mounting surface 26, and the engagement jaws 58 and 87 are insertion engaged to the engaging holes 29a and 29b corresponding to them. A slide member 42 is slide moved in a movement direction thereof by rotation operating a handle 52, and then a water meter 24 is retained, by clipping it between the receiving surface 48 of the slide member 42 and the end face 82 of the receiving portion 83 at the side of the outflow passage-forming member 23. Forward movement by screwing rotation of a driving shaft 49 is transmitted to the slide member 42 from the insertion tip side of the driving shaft 49, thereby performing slide's forward movement the slide member 42. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a flow meter installation unit for installing a flow meter for measuring the amount of water or the like at a connection position with an external pipe.

In multi-story apartment buildings, gas meters and water meters (water meters) are centrally installed in a small space called a pipe shaft. These water meters are replaced every few years (for example, 8 years), and the meters can be directly attached to and detached from external piping so that the work can be easily performed even in a small space. The use of flow meter installation units that do not require connection is widely adopted.

FIG. 18 shows a configuration of a flow meter installation unit disclosed in Patent Document 1. In the figure, a flow meter installation unit 1 has a center of a plate-like base 11 as an installation area of a water meter 3, a ball valve type water stop valve 5 and an attachment / detachment device 9 on one side, and a check valve 7 on the other side. Are fixedly mounted on the base 11 using bolts 2, and external piping (not shown) is connected to the connecting portion 8 on the water inlet side of the ball valve type stop valve 5 and the connecting portion 10 on the discharge side of the check valve. ) Is connected.

When the water meter 3 is installed in the flow meter installation unit 1, the handle 4 is rotated to slide the slide member 6 in the backward direction, and the water meter 3 is placed between the attachment / detachment device 9 and the check valve 7. After securing the space to interpose, the edge part 15 of the water quantity meter 3 is applied to the receiving part of a non-return valve. Then, the water meter 3 is operated by rotating the handle 4 in the opposite direction to move the slide member 6 forward and pressing the end 13 of the water meter 3 with the receiving surface (tip surface) of the slide member 6. Is sandwiched between the attachment / detachment device 9 and the check valve 7 and supported. When removing the water meter 3, the removal is achieved by following the reverse procedure.

By using the flow meter installation unit 1 described above, it is possible to easily replace the water meter 3 by simply operating the handle 4 without adding any hand to the external piping. .

Japanese Patent Laid-Open No. 11-93226 JP-A-9-280919 JP-A-9-297044 JP 2000-266263 A

As shown in Patent Document 1, when the water meter 3 is sandwiched and supported between the attachment / detachment device 9 and the check valve 7 using the flow meter installation unit 1, the sandwiching support of the water meter 3 is supported. It is necessary to maintain the state firmly without loosening by the next meter change. This is because the problem of water leakage occurs when looseness occurs. In order to prevent such looseness from occurring, the span length of pinching of the water meter 3 (between the receiving surface of the check valve 7 receiving the water meter 3 and the receiving surface of the slide member 6 on the attachment / detachment device 9 side) It is necessary to firmly fix the attachment / detachment device 9 and the check valve 7 with the bolt 2 so that the (interval) does not change with time.

However, in order to firmly fix the attachment / detachment device 9 and the check valve 7 so as not to move by the bolt 2, a large bolt 2 must be used, and the number of the bolts 2 must be increased. The work of firmly fixing is difficult, and there is a problem that work efficiency is lowered. In addition, when installing the flow meter installation unit 1 in a multi-story apartment house, the worker often goes up the stairs without using the elevator of the apartment house and carries each part of the flow meter installation unit 1. There is a problem that when the bolt 2 becomes large or the number of bolts increases, the weight increases and the carrying work becomes heavy labor.

Further, even if the attachment / detachment device 9 and the check valve 7 are firmly fixed to the base 11 using a large number of large bolts 2, as shown in FIG. If a bent portion 12 having a crease line is formed in a direction orthogonal to the direction (advancing and retreating direction of the slide member 6), the pressing force of pinching acts in the pinching span direction, so that the bending portion 12 serves as a fulcrum. There is a concern that the base 11 is deformed in the extending direction and the sandwiching support state of the water meter 3 is loosened. In order to prevent such loosening of the sandwiching support state due to the deformation of the base 11, the base 11 must be formed of a thick member, and as a result, the weight increases and the flow meter installation unit 1 is installed. Parts transportation work becomes difficult at work.

Further, in the apparatus shown in FIG. 18, the slide member 6 is advanced and retracted by rotating the handle 4. The handle 4 connected to the slide member 6 has a narrow space between the ball valve type water stop valve 5 and the attachment / detachment device 9. Since the handle 4 is disposed in a space, the handle 4 is inevitably small. When the handle 4 is operated, the operation work must be performed in a narrow space, so that the workability is poor, and the water meter 3 is replaced at a long time interval such as 8 years. In many cases, the threaded rotation portion of the handle 4 is already rusted, and since the handle 4 is small in diameter, an excessively large force is required to start rotating the handle 4, and the operation of the handle 4 becomes difficult.

The present invention has been made to solve the above-mentioned problems, and its purpose is to loosen the flow meter without having to firmly fix the member supporting the flow meter (water meter) with a large bolt. It is an object of the present invention to provide a flow meter installation unit capable of stably maintaining a support state without any problems.

In addition, another object of the present invention is to support the flow meter without loosening, despite the fact that the frame (corresponding to the base 11 in FIG. 18) on which the member that sandwiches and supports the flow meter is formed by a plate material. An object of the present invention is to provide a flow meter installation unit that can be reduced in weight, size, and cost.

Furthermore, another object of the present invention is to provide a flow meter installation unit that facilitates the operability of a slide member advance / retreat operation performed when the flow meter is attached / detached.

In order to achieve the above object, the present invention has the following configuration as means for solving the problems. That is, in the flow meter installation unit of the present invention, on the mounting surface of the mounting frame, an inflow channel forming member having a flow channel formed therein is formed on one side of the flow meter arrangement region, and on the other side. Outflow path forming members having flow paths formed therein are fixedly disposed by fastening means, and a receiving portion for receiving the outflow end side of the flow meter is formed in the outflow path forming member, and the inflow path forming member is slid A member is housed, and a tip portion of the slide member serves as a receiving portion for receiving the inflow end side of the flow meter, and the inside of the slide member communicates with the flow path of the inflow path forming member and exits the communication flow path Is formed at the front end surface of the slide member, and slide moving means for moving the slide member forward and backward is provided. An amount meter is sandwiched and supported between the slide member and the receiving portion of the outflow path forming member, and the flow meter is removed by the backward movement of the slide member. The inflow path forming member and the outflow path forming member are respectively Locking jaws projecting downward from the bottom side are provided, and a mounting hole is formed on the mounting surface of the mounting frame so as to face each locking jaw. The inflow path forming member and the outflow path forming member are engaged with each other. The locking jaw is fastened and fixed by the fastening means on the mounting surface of the mounting base in a state where the locking jaw is inserted and locked in the corresponding locking hole, and the slide moving means communicates with the accommodation space of the sliding member of the inflow path forming member. A shaft insertion hole penetrating from the housing space in the direction in which the slide member slides backward, and a drive shaft is inserted into the shaft insertion hole. And at least a portion of which is coupled by screwing, and is configured to transmit the advance movement by screwing rotation of the drive shaft from the insertion tip side of the drive shaft to the slide member to perform the slide advance movement of the slide member, The base end side of the drive shaft is not inserted into the shaft insertion hole and protrudes outside from the inflow path forming member, and a handle for operating screwing rotation is attached to the base end side of the drive shaft protruding outside. The structure is a means to solve the problem.

The handle may be a detachable handle attached to the proximal end side of the drive shaft.

As an example, the mounting frame is formed of a metal plate, and in the flow meter arrangement area on the mounting surface of the mounting frame, it is recessed downward by deep drawing at a position below the flow meter to be installed. A recess is formed.

In another example, the mounting frame is formed of a metal plate, and an opening hole is formed at a position on the lower side of the installed flow meter in the flow meter arrangement area on the mounting surface of the mounting frame. It is set as the structure by which the saucer was mounted | worn by this edge and latched in the edge part.

In the above-described configuration, the inflow path forming member is provided with a pressure reducing valve, and this pressure reducing valve is rotatably attached to the central axis of the flow path of the inflow path forming member at the attachment site. It is good also as a structure.

Alternatively, the inflow path forming member is provided with a unit valve in which the pressure reducing valve and the flow path closing plug are unitized, and this unit valve is located with respect to the central axis of the flow path of the inflow path forming member at the attachment site. It is good also as a structure attached rotatably.

Further, the pressure reducing valve may be provided in the outflow path forming member instead of being provided in the inflow path forming member. In this case, the pressure reducing valve is provided with respect to the central axis of the flow path of the outflow path forming member at the attachment site. You may attach so that rotation is possible.

As described above, when the pressure reducing valve is provided on the outflow path forming member, the pressure reducing valve and the flow path closing plug are unitized as a unit valve, and this unit valve is the central axis of the flow path of the outflow path forming member at the attachment site. It is more preferable to attach it rotatably.

In addition, a connecting member having two or more branch connection ports connected to an external pipe on the outlet side of the flow path of the outflow path forming member is rotatable with respect to the central axis of the flow path of the outflow path forming member at the attachment site. It is good also as a structure attached to.

In the flow meter installation unit as an example of the above configuration, the flow path of the inflow path forming member and the outflow path forming member is a water channel, and the installed flow meter is a water meter.

According to the present invention, the inflow path forming member and the outflow path forming member fixed by the fastening means on the mounting surface of the mounting base are in a state where the locking jaws are inserted and locked in the corresponding locking holes, respectively. Therefore, the pushing force due to the flow meter sandwiched between the inflow path forming member and the outflow path forming member is directly and firmly received by the mounting surface of the mounting frame by the locking of the locking jaw and the locking hole. Therefore, even if time elapses for a long time, the flow meter pinching interval between the inflow channel forming member and the outflow channel forming part is kept constant and remains stable without being affected by changes over time. It can be held and held, and the reliability of the flow meter installation can be improved. Further, in this way, the pushing force due to the flow meter sandwiched between the inflow path forming member and the outflow path forming member is directly received by the mounting surface of the mounting frame by the locking jaws and the locking holes. Therefore, the fastening by the fastening means only needs to obtain a fastening force enough to prevent the inflow passage forming member and the outflow passage forming member from being lifted from the mounting surface of the mounting base, so that a strong large fastening structure is used as the fastening means. There is no need, for example, when using bolts as fastening means, simple bolts with a small diameter can be used and the number of bolts can be reduced. Therefore, the device (unit) can be reduced in size, weight and cost. Can be achieved.
Further, the base end side of the drive shaft that drives the sliding movement of the slide member is projected outward from the inflow path forming member, and the handle for operating the screwing rotation is attached to the base end side of the projected drive shaft. Since the handle is located outside the inflow passage forming member, a wide space for operating the handle can be secured, the handle can be easily operated, and a wide space can be secured, so the diameter (diameter) of the handle can be increased. , You can use a small operating force. Therefore, even if the screwed portion of the drive shaft is rusted, the drive shaft can be rotated easily and smoothly, and the handle operation becomes very easy.

Further, in the invention in which the handle is configured to be detachable so as to be detachably attached to the proximal end side of the drive shaft, there is no need to attach the handle to all the flow meter installation units installed in each door of an apartment house or the like. Since the operator only needs to carry the work with one handle, further reduction in weight, size and cost of the flow meter installation unit can be achieved.

Furthermore, by forming the mounting frame from a metal plate, the mounting frame can be made thinner and more lightweight than the case where the mounting frame is formed by casting or the like. In addition, if a water meter is used as a flow meter by forming a recess that is recessed downward by deep drawing in the flow meter placement area on the mounting surface of the mounting base, replace the water meter. By receiving the water leaking from the inside of the water meter or the like in the concave portion sometimes, the floor surface can be prevented from getting wet or the leaked water from getting into the floor. In addition, by forming the recesses by deep drawing, the mechanical strength of the mounting surface of the mounting base can be increased, and by improving deformation resistance, the flow meter can be maintained (supported) without loosening. Can be increased.

Also, in the invention in which an opening is formed in the flow meter arrangement region and a saucer is attached to the opening, water leaking from the inside of the water meter when the water meter is replaced is received by the saucer to wet the floor surface. Or leaking water can be prevented from entering the floor, but by using the tray, it becomes easy to remove the tray from the opening on the mounting surface and throw away the water accumulated in the tray. It becomes possible to facilitate the work of water leakage treatment at the time of replacement.

Further, in the configuration in which the pressure reducing valve is provided in the inflow path forming member (or the outflow path forming member), the pressure reducing valve is connected to the central axis of the flow path of the inflow path forming member (or the outflow path forming member) at the attachment site. Or a unit valve in which a pressure reducing valve and a flow path closing plug are unitized on an inflow path forming member (or an outflow path forming member). The inflow path forming member (or the outflow path forming member) is attached so as to be rotatable with respect to the central axis of the flow path so that the pressure reducing valve can be easily handled according to the space of the pipe shaft. It can be installed in the direction of rotation or in the direction of rotation in which the channel closing plug is easy to operate.

In addition, a connecting member having two or more branch connection ports connected to the external pipe on the outlet side of the flow path of the outflow path forming member is rotatable with respect to the flow path central axis of the outflow path forming member at the mounting position. In the invention of the attached configuration, the connection member can be adjusted to a rotation position that is easy to connect to the external pipe according to the position of the external pipe, so the outflow passage forming member and the external pipe can be easily connected via the connection member, The connection workability can be improved.

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of a flow meter installation unit according to the present invention. The flow meter installation unit 20 of the present embodiment has a mounting base 21, an inflow path forming member 22, and an outflow path forming member 23, and the amount of water as a flow meter between the inflow path forming member 22 and the outflow path forming member 23. The meter 24 is detachably clamped and fixed. The mounting base 21 can be formed of a cast resin or a synthetic resin having high mechanical strength such as polycarbonate, but in the illustrated example, it is formed of a metal plate 25 such as stainless steel.

FIG. 4 is a perspective view of the mounting base 21 formed by the metal plate 25, which forms the mounting surface 26 over the entire length in the longitudinal direction of the central portion in the width direction of the metal plate 25, and the central portion of the mounting surface 26 is the water meter 24. A recessed portion 27 is formed which is deeply drawn on the installation area of the water meter 24 and is recessed downward on the plate. Locking holes 29a and 29b are formed at the center position in the width direction of the mounting surface 26 in the vicinity of the sides 28a and 28b that are opposed to each other in the longitudinal direction of the recess 27, and these locking holes 29a and 29b are formed. A plurality of screw holes 30a and 30b (a total of eight screw holes in the figure) are formed at positions on the mounting surface 26 that are closer to the outside than the other.

The metal plate 25 is bent downward from both ends of the mounting surface 26 in the width direction to form upright side plates 31a and 31b. The lower end portions of the upright side plates 31a and 31b are bent outward to form the foot plate portion 32a and 32b is formed. In addition, mounting holes 33 through which anchor bolts (not shown) are respectively inserted are provided in a plurality of locations (two locations in the drawing) in the foot plate portions 32a and 32b, and the mounting base 21 is inserted into the mounting holes 33 through the anchor bolts. It is configured to be fixed to the floor.

The inflow path forming member 22 is configured by integrally connecting an inflow side base member 34, a unit valve 35, and an inflow side connection member 36. The inflow side base member 34 has a form as shown in FIG. 5 and is formed of, for example, a casting. With reference to FIG. 1A and FIG. 5, a shaft insertion hole 37 provided on the rear side and a slide member accommodation space (slide member accommodation chamber) 38 provided on the front side are provided inside the lower side of the inflow side base member 34. Are connected in series with each other in the horizontal direction, and a connecting cylindrical portion 39 protruding upward is formed at the boundary between the two 37 and 38. An O-ring receiving groove is provided around the upper peripheral surface of the connecting tube portion 39, an O-ring 40 is received in the O-ring receiving groove, and a pin insertion groove 41 is provided at a position slightly below the O-ring receiving groove. It is installed around. In FIG. 5, the O-ring 40 and the pin insertion groove 41 are not shown.

A slide member 42 is accommodated in the slide member accommodation space 38. The slide member 42 has a tube shape with an open front end, and the rear end side of the tube hole is closed by a rear end wall 43. A through hole 44 is formed in the side wall of the slide member 42, and the flow path 45 of the tube hole inside the slide member 42 communicates with the tube hole 110 of the connecting tube portion 39 through the through hole 44. In addition, O-ring accommodation grooves are provided around the outer peripheral surface of the slide member 42 at appropriate positions, and the O-ring 46 is accommodated in these grooves, thereby achieving watertightness between the slide member accommodation space 38 and the outside. ing. The front end surface (front end portion) of the slide member 42 forms a receiving surface (receiving portion) 48 that receives the inflow end of the water meter 24, and an O-ring housing groove is formed in the receiving surface 48. Is housed.

A drive shaft 49 is inserted into the shaft insertion hole 37 from the rear end side, and a slide member 42 is connected to the front end side of the drive shaft 49. The connecting structure is not particularly limited, and various known means can be adopted. In the illustrated example, a screw insertion hole is formed in the rear end wall 43 of the slide member 42, and the screw 50 is attached from the inside of the slide member 42. The drive shaft 49 and the slide member 42 are connected by passing the screw 50 through the screw insertion hole and screwing the screw 50 into the screw hole provided in the distal end surface of the drive shaft 49. In this connected state, the slide member 42 is rotatable relative to the drive shaft 49. Note that an O-ring housing groove is also provided around the outer peripheral surface of the drive shaft 49, and the O-ring 51 is housed in the groove, thereby achieving watertight insertion of the drive shaft 49.

The base end side (rear end side) of the drive shaft 49 protrudes outward (rear side) from the shaft insertion hole 37, and a circular handle 52 is attached and fixed to the base end side of the protruded drive shaft 49. Yes. Further, a female screw 53 is formed on a part of the shaft insertion hole 37 (rear end portion in the figure), and a male screw 54 is formed on the outer periphery of the drive shaft 49 in a section corresponding to the female screw 53. The sliding movement of the slide member 42 is performed by the threaded rotation of the female screw 53 and the male screw 54 by rotating the direction.

As shown in FIG. 5, a support receiving portion 57 is formed on the front side of the inflow side base member 34 such that the lower half wall portion of the hole of the slide member accommodating space 38 protrudes further forward than the upper half wall portion. In addition, a locking jaw 58 protruding downward is provided at the bottom of the front end of the support receiving portion 57. The locking jaw 58 is inserted into the locking hole 29a while being mounted at a fixed position on the mounting surface 26 of the mounting base 21. The support surface 59 of the support receiving portion 57 is a concave curved surface that receives and supports the lower surface portion on the inflow end side of the water meter 24, and the shape of the concave curve corresponds to (matches) the curved surface shape of the water meter 24 in the illustrated example. It is.

Mounting plate portions 55 projecting outward are provided on the left and right sides on the front side of the bottom portion of the inflow side base member 34, and bolt insertion holes 56 correspond to the screw holes 30a on the mounting surface 26 side. The locking jaw 58 is inserted and locked in the locking hole 29a by inserting a bolt into each of the bolt insertion holes 56 and screwing the bolt into the screw hole 30a. Thus, the inflow side base member 34 is fixed on the mounting surface 26 of the mounting base 21. At this time, the bolts, the bolt insertion holes 56, and the screw holes 30a constitute fastening means for fixing the inflow path forming member 22 (inflow side base member 34) to the mounting base 21.

The unit valve 35 is integrated by incorporating a pressure reducing valve 60 and a flow path closing plug 61 into a valve body 62. The pressure reducing valve 60 is a fluid (water in this example) that flows through the flow path 63 of the valve body 62. When the pressure increases, the flow passage area passing through the pressure reducing valve 60 is increased to suppress the abnormal increase in pressure, and the configuration, function, and operation of this type of pressure reducing valve 60 are known. The description is omitted.

Further, the channel closing plug 61 rotates the operation handle 66 to advance the valve body 64 and presses the valve 67 against the valve seat 65 to close the channel 63 and rotate the operation handle 66 in the reverse direction. By doing so, the flow path 63 is opened, and the configuration, function, and operation of such a flow path closing plug 61 are also well known, and the description thereof will be omitted.

The connection end 68 on the lower side of the unit valve 35 is fitted and connected in a watertight manner to the connecting cylinder 39 on the inflow side base member 34 via the O-ring 40. A pair of through holes are formed in the connecting end portion 68 in parallel at intervals passing through both sides of the pin insertion groove 41 on the connecting tube portion 39 side, and a U-shape is formed in the pair of through holes from the outside of the connecting end portion 68. By inserting and inserting the pin 105 having a shape, the pin 105 passes through the pin insertion groove 41, so that the connecting cylinder portion 39 and the connection end portion 68 are fitted and connected in a state of being prevented from being removed, and The unit valve 35 is free to rotate forward and backward (oscillate) with respect to the inflow side base member 34 with the central axis of the flow path of the unit valve 35 (specifically, the central axis of the connecting cylinder portion 39) as the rotation center axis. Connected.

A flange 69 protruding outward is formed on each of the upper end portion of the unit valve 35 and the lower outer peripheral surface of the hollow inflow side connection member 36, and the lower end portion of the inflow side connection member 36 is the flow of the upper end portion of the unit valve 35. When the flange 69 on the inflow side connecting member 36 and the flange 69 on the unit valve 35 side are in contact with each other, the flanges 69 are clamped by fasteners 70 functioning as fastening members from both sides. As a result, the inflow side connection member 36 is freely rotatable around the center axis of the flow path of the unit valve 35 (specifically, the center axis of the cylinder portion 14 on the inlet side of the unit valve 35) at the attachment site. The connection state of A watertight O-ring 71 is also provided in a fitting portion between the upper end portion of the unit valve 35 and the inflow side connection member 36 so as to be accommodated in a groove provided around the fitting surface of the inflow side connection member 36. . A male screw 72 is formed on the outer peripheral surface on the upper side of the inflow side connection member 36, and external piping (not shown) is connected using the male screw 72.

The perspective configuration of the outflow path forming member 23 is shown in FIG. 6, and this outflow path forming member 23 is formed of a casting or the like and has a flow path 73 inside. As shown in FIG. 1A, a check valve 74 is disposed on the inlet side of the flow path 73. The check valve 74 is a well-known valve. When the water flow is stopped, the valve 77 of the valve body 76 is in contact with the valve seat 75 by the urging force of the spring 78. It moves in the valve opening direction (right direction in FIG. 1) and the flow path (valve hole) is opened to allow water flow. When the upstream side becomes negative pressure than the downstream side, the valve 77 is closed and the downstream side to the upstream side. It has a function to prevent water from flowing back. A watertight O-ring 79 is accommodated in a groove on the outer peripheral surface of the check valve 74 between the inner wall surface of the outflow passage forming member 23 in which the check valve 74 is accommodated and the outer peripheral surface of the check valve 74. Is provided.

The check valve 74 is accommodated in the flow path 73 of the cylindrical housing 80 so that the end face 82 on the water inlet side is located behind the water inlet side end face 81 of the cylindrical housing 80 of the outflow path forming member 23. An end surface 82 of the stop valve 74 and an inner peripheral surface (wall surface of the flow path 73) of the cylindrical housing 80 extending from the end surface 82 to the water-incoming end surface 81 are formed with a receiving portion 83 that receives the outflow end side of the water meter 24. is doing. The end face 82 of the check valve 74 that receives the end face on the outflow end side of the water meter 24 is formed with a ring-shaped groove, and an O-ring 84 is accommodated in the groove, and the O-ring 84 is opposite to the water meter 24. Watertight contact between the end faces of the stop valve 74 is possible.

A pedestal portion 85 having a flat lower surface is provided at the lower portion of the cylindrical housing 80 on the front end (water inlet end) side, and a plurality of screw insertion holes 86 (examples shown) are provided on both sides in the width direction of the pedestal portion 85. Are formed at positions corresponding to the screw holes 30b formed in the mounting surface 26 of the mounting base 21. A locking jaw 87 inserted into a locking hole 29b formed in the mounting surface 26 of the mounting base 21 protrudes downward from the bottom of the front end portion of the pedestal 85.

The pedestal portion 85 of the outflow passage forming member 23 is mounted on the mounting surface 26 on the side where the screw holes 30a and 30b of the mounting base 21 are formed, and the locking jaw 87 is inserted into the locking hole 29b and locked. In this state, by passing a mounting bolt (not shown) through the screw insertion hole 86 and screwing the mounting bolt into the screw hole 30b, the outflow path forming member 23 is fixed on the mounting surface 26 of the mounting base 21. ing.

A concave support receiving surface 88 is formed from the water inlet side end surface 81 to the front end of the cylindrical housing 80 at the center of the upper surface of the pedestal portion 85. The support receiving surface 88 functions as a surface for placing and supporting the lower surface on the outflow end side of the water meter 24, and as one form, the concave surface of the support receiving surface 88 has the shape of the lower surface on the outflow end side of the water meter 24 to be supported. The shape is matched, but of course it is not limited to this shape.

In the outflow passage forming member 23 illustrated in FIG. 6, a relief recess 89 is formed at the front end (tip) portion of the support receiving surface 88. In order to distinguish the upstream side and the downstream side (incoming side and outflow side), the water meter 24 has a protruding shape on one side of the upstream side and downstream side (downstream side in the example shown here) at the bottom of the water meter 24. A rib 90 (see FIG. 1A) may be provided. In that case, the relief recess 89 is accommodated in the recess so that the rib 90 does not ride on the support receiving surface 88. In addition, when the rib 90 is formed in the bottom part of the upstream side (incoming water side), the escape recessed part 89 will be provided in the support surface 59 of the inflow side base member 34. FIG.

A connecting member having a plurality of (two in the example of FIG. 1) branch connection ports 91a and 91b for connecting external piping to the outflow end side of the cylindrical housing 80, that is, the outlet side of the outflow passage forming member 23. 92 is attached. As shown in FIG. 1A, the connection configuration between the connection member 92 and the outflow passage forming member 23 (cylindrical housing 80) is the same as the connection configuration between the inflow side connection member 36 and the unit valve 35 described above. Therefore, if the corresponding parts are simply denoted by the same reference numerals, the flange 69 provided at the outflow end of the cylindrical housing 80 and the inflow end of the cylindrical portion 93 of the connecting member 92 are brought into contact with each other. Fasteners 70 are clamped so as to sandwich the flange 69, and the connection member 92 is rotatably attached to the cylindrical housing 80. The rotation center axis is the center axis of the flow path 73 on the outlet side of the cylindrical housing 80 to which the connection member 92 is attached. In addition, the water tightness of the fitting contact surface between the inner wall surface of the outlet of the cylindrical housing 80 (the wall surface of the flow path 73) and the cylindrical portion 93 on the water inlet end side of the connection member 92 is achieved by the O-ring 71.

Each branch connection port 91a, 91b of the connection member 92 is formed with a female screw 94, and the branch connection port 91a, 91b is connected to a corresponding external pipe (not shown) using this female screw 94. When an external pipe is not connected to one of the branch connection ports 91a and 91b, a closing plug is attached to the branch connection port and the flow path end is closed.

7 to 10 show various other types of the outflow path forming member 23 and the connection member 92 connected to the outlet side of the flow path. The connecting member 92 shown in FIG. 7 is provided with a branch connection port 91a in a direction orthogonal to the central axis of the flow path 73 of the outflow passage forming member 23, and a branch connection port 91b in the extending direction of the central axis of the flow path 73. Is. 8, the tubular housing 80 on the outlet side of the flow path 73 of the outflow passage forming member 23 is bent in the vertical direction, and the same connecting member 92 as the type shown in FIG. It is a thing.

9, the outlet along the central axis of the flow path 73 of the cylindrical housing 80 of the outflow passage forming member 23 is formed with the connection port 95 of the external piping, and the above-described outlet is formed in the central portion of the cylindrical housing 80 in the longitudinal direction. A connection port with a connection member 92 is provided in a direction orthogonal to the flow path axis, and the connection member 92 is attached to the connection port. The connection member 92 has a single connection port 91 with an external pipe. is there. FIG. 10 shows that the outlet portion of the outflow passage forming member 23 extends along the central axis of the flow path of the cylindrical housing 80 and the central portion in the longitudinal direction of the cylindrical housing 80 in a direction perpendicular to the flow path axis. Connection members 92a and 92b each having one connection port 91 for connecting an external pipe are attached to the flow path outlet portion of the provided cylindrical portion. 7 to 10, the connection members 92 (92 a, 92 b) are all the center axis (center line on the outlet side) of the flow path 73 on the outflow passage forming member 23 side to which the connection members 92 (92 a, 92 b) are attached. ) To be freely rotatable.

As shown in FIG. 7 to FIG. 9, the shape of the outflow passage forming member 23 (cylindrical housing 80) and the connecting member attached to the outlet of the flow path of the cylindrical housing 80 according to each use request (specification). The form can be variously modified.

FIG. 1A shows a state in which the water meter 24 is installed in the flow meter installation unit 20, and in this state, an external pipe (not shown) is connected to the inflow side connection member 36 and the connection member 92. . Next, the operation when the water meter 24 is replaced with the external pipe connected will be described. When removing the water meter 24 from the state shown in FIG. 1A, first, the handle 52 is rotated in the reverse direction (counterclockwise). Due to the reverse rotation of the handle 52, the male screw 54 of the drive shaft 49 is screwed and rotated in the removal direction with respect to the female screw 53 on the shaft insertion hole 37 side, and the drive shaft 49 moves in the removal direction (left direction in FIG. 1A). To do. Then, as shown in FIG. 3, the slide member 42 connected to the drive shaft 49 slides in the backward direction, and the water meter 24 is interposed between the receiving surface 48 of the slide member 42 and the inflow end of the water meter 24. A gap C required to remove the is formed.

At this time, the rotation operation of the handle 52 is stopped and the water meter 24 is removed. When a new water meter 24 is attached, the outflow end side of the water meter 24 is fitted into the receiving portion 83 on the outflow path forming member 23 side and abutted against the end face 82 of the check valve 74, so The lower surface on the side is placed on the support receiving surface 88 of the pedestal portion 85, and the lower surface on the inflow end side of the water meter 24 is placed on the support surface 59 of the support receiving portion 57 for setting. In this state, by rotating the handle 52 in the forward direction, the drive shaft 49 and the slide member 42 are moved forward and backward by an operation reverse to the case of removing the water meter 24, and the receiving surface 48 of the slide member 42 is moved to the water meter 24. Is attached to the end face of the inflow end of the water and the installation of the water meter 24 is completed.

In the attached state of the water meter 24, both end sides of the water meter 24 are in pressure contact with the receiving surface 48 on the inflow channel forming member 22 side and the end surface 82 of the receiving portion 83 on the outflow channel forming member 23 side. The pressure of the member 22 and the outflow path forming member 23 is such that both members 22 and 23 are moved outward, that is, leftward with respect to the inflow path forming member 22 in FIG. On the other hand, it is pushed to the right. However, in this embodiment, the locking jaws 58 and 87 of the inflow path forming member 22 and the outflow path forming member 23 are locked in corresponding locking holes 29a and 29b formed in the mounting surface 26 of the mounting base 21. Therefore, the pushing force is reliably received by the locking surfaces of the locking holes 29a and 29b, and the pushing force can be reliably prevented from being transmitted to the external piping side.

Further, since the pushing force is received by the mounting surface 26 itself, more specifically, by the locking surfaces of the locking holes 29a and 29b provided in the mounting surface 26, the metal plate forming the mounting base 21 Even if the thickness of 25 is thin, the mechanical strength that can sufficiently resist the pushing force can be secured, and even if the installation state of the water meter 24 is maintained for a long time until the next replacement, the locking hole 29a, Since the distance between 29b does not change with the passage of time, the distance between the receiving portions of the water flow meter 24 of the inflow passage forming member 22 and the outflow passage forming member 23 does not change, so that the water meter 24 is not loosened. It becomes possible to hold it stably. Further, the force in the pushing direction for holding the water meter 24 is held by the mounting surface 26 by the locking of the locking jaws 58 and 87 and the locking holes 29a and 29b, so that the inflow path forming member 22 and the outflow path The bolt that fastens the forming member 23 to the mounting surface 26 may have a fastening force that prevents the members 22 and 23 from being lifted from the mounting surface 26, so that the bolt can be reduced in size and weight. Is obtained.

In particular, in this embodiment, as shown in FIG. 4, the mounting base 21 is formed by bending a metal plate 25, but the bending line A is in the pushing direction (inflow) for holding the water meter 24. Since the path forming member 22 and the receiving portion of the outflow path forming member 23 are parallel to each other in a straight line), the mounting base 21 is not bent and deformed by the pushing force. A bending portion having a bend line parallel to the pushing force as a crease is formed, and a concave portion 27 is formed on the mounting surface 26 by deep drawing, so that the mechanical strength (counter strength) against the pushing force is increased. It can be further increased.

Further, since the handle 52 is provided at the base end portion (base end side) of the drive shaft 49 protruding to the outside of the inflow path forming member 22 (inflow side base member 34), a sufficient amount necessary for operating the handle 52 is provided. Space can be secured, the handle 52 can be easily operated, and the diameter of the handle 52 can be increased, so that the handle 52 can be rotated with a small force. The operability of the handle at the time can be sufficiently improved, and the work becomes very easy.

Further, as described above, since the recess 27 is formed in the mounting surface 26 of the mounting frame 21 at a position below the water meter 24, the bottom of the water meter 24 is immersed in the recess 27 as shown in FIG. The water meter 24 can be installed and held in the form. Therefore, it is possible to avoid the bulky installation of the water meter 24 and to effectively use the installation space. Further, when the water meter 24 installed at the time of replacing the water meter 24 is removed, even if water in the water meter 24 leaks to the outside, the leaked water is received by the concave portion 27, so that the leaked water is removed from the floor. Can be prevented from getting wet or soaked into the floor, and the water received in the recess 27 can be wiped off, which facilitates leakage treatment when the water meter 24 is replaced.

Further, in order to prevent freezing in winter, when a cover is provided on the flow meter installation unit 20, the bottom of the water meter 24 is immersed in the recess 27 and an air layer is formed between the wall of the recess 27. The wall portion (plate surface) 27 exhibits the function of an anti-freezing cover. Therefore, the cover only needs to be provided on the upper side of the flow meter installation unit 20, so that the cost of the cover can be reduced and the cover can be easily attached.

Further, since the unit valve 35 is rotatably incorporated in the inflow path forming member 22, when the flow meter installation unit 20 is installed, the position of the pressure reducing valve 60 and the flow path closing plug 61 in the rotation direction is not obstructed. Can be adjusted to the position.

Further, since the connecting member 92 is provided on the outlet side of the flow path 73 of the outflow path forming member 23 so as to be rotatable with respect to the central axis of the flow path 73 on the outflow path forming member 23 side, The position of the connection port can be easily adjusted. For example, in the state shown in FIG. 1B, the branch connection port 91a faces upward and the branch connection port 91b faces left, and the connection with the external pipe is achieved at that position. If the connection member 92 is rotated 90 degrees clockwise, the connection position is reached. If the external piping is on the right side and the lower side, the connection member 92 is further rotated 90 degrees clockwise. If the external piping is on the left side and the lower side, the connecting member 92 can be rotated 90 degrees counterclockwise from the state shown in FIG.

11 and 12 show a second embodiment of the flow meter installation unit 20 according to the present invention. The second embodiment is different from the first embodiment in that a cylindrical portion 96 (96a) that projects the outlet side of the flow path 73 of the cylindrical housing 80 of the outflow path forming member 23 in four directions orthogonal to each other. , 96b, 96c, 96d), and the cylindrical portions 96a, 96b, 96c, 96d are used as connecting portions with external piping. Since the other configuration is the same as the configuration of the first embodiment described above, a duplicate description thereof is omitted.

In the example of FIGS. 11 and 12, a female screw 97 is provided on the inner wall surface of the cylindrical hole of each cylindrical portion 96, and the female screw 97 is used to connect to the external pipe. For example, a flange 69 as shown in FIG. 1A may be provided on the distal end side of each cylindrical portion 96 and connected to an external pipe using a fastener 70. In this case, a flange 69 that is fastened by a fastener 70 is provided at the connection port of the external piping. Also in the second embodiment, among the four cylindrical portions 96, the outlet of the flow channel of the cylindrical portion 96 that is not used for connection to the external pipe is provided with a closing plug (not shown) (packed with the closing plug). Closed.

This second embodiment also has the same effect as the first embodiment.

FIG. 13 shows a third embodiment of the flow meter installation unit 20 according to the present invention. The third embodiment is different from the first and second embodiments in that a pressure reducing valve 60 is provided in the outflow passage forming member 23. Other configurations are the same as those in the first and second embodiments. Since the configuration is the same as that of the second embodiment, the same reference numerals are given to the same components as those of the first and second embodiments, and the description thereof is omitted.

In FIG. 13, the inflow path forming member 22 is configured by an inflow side base member 34, and the lower end side of the cylindrical inflow side connection member 111 is fitted to the inflow end side of the connecting tube portion 39 in the inflow side base member 34. The inflow side connecting member 111 is rotatably attached to the connecting cylinder portion 39. This rotatable mounting structure is the same as the rotatable mounting structure of the connecting cylinder part 39 and the unit valve 35 in FIG. 1, and the pin insertion groove 41 of the connecting cylinder part 39 is inserted into the pin insertion groove 41 from the outside of the inflow side connection member 111. By inserting a U-shaped pin (pin foot) 105, its rotatable attachment (connection) is achieved. In addition, a female screw 112 is provided around the inner wall surface of the cylindrical hole at the upper end of the inflow side connecting member 111 so that an external pipe (pipe) (not shown) is connected by screwing.

On the other hand, the outflow path forming member 23 is configured by connecting the unit valve 35, the relay connection cylinder 116, and the check valve 114 in this order on the outlet side of the cylindrical housing 80. That is, in the example of FIG. 1, the unit valve 35 functions as a component of the inflow path forming member 22, but in FIG. 13, the unit valve 35 functions as a component of the outflow path forming member 23. The integral part of the pedestal portion 85 and the tubular housing 80 functions as an outflow side base member, and the tubular housing 80 rises at a right angle on the outflow rear side, and the unit valve 35 is disposed on the standing end side (standing upper end side). One end side is connected.

This connection structure is the same as the connection structure between the inflow side connection member 36 and the unit valve 35 in FIG. 1, and the fastener 70 is mounted between the joint flanges 69 on both the cylindrical housing 80 side and the unit valve 35 side. The unit valve 35 is rotatably connected to the cylindrical housing 80, and an O-ring 71 is interposed between the fitting surfaces of the two 80 and 35, thereby achieving watertightness between the fitting surfaces. . In this embodiment, the unit valve 35 is mounted on the cylindrical housing 80 with the flow path closing plug 61 in a direction downstream of the pressure reducing valve 60. In the example shown in FIG. 13, the flow path closing plug 61 is a ball valve type closing plug, but the structure of the closing plug is not particularly limited, and a non-ball valve type closing plug as shown in FIG. Good.

The lower end side of the relay connection cylinder portion 116 is rotatably connected (relatively rotatable) to the passage end portion on the upper end side of the unit valve 35. This connection structure is the same as the connection structure between the connecting tube portion 39 of the inflow side base member 34 and the inflow side connection member 111, and a unit valve is provided in the pin groove 118 provided on the fitting outer peripheral surface of the relay connection tube portion 116. By inserting a U-shaped pin (pin foot) 119 from the outside of the cylindrical portion of 35, the unit valve 35 and the relay connecting cylindrical portion 116 are connected to each other so as to be relatively rotatable, and the fitting surfaces of both 35 and 116 are the same. In addition, watertightness is achieved by the O-ring 117.

A check valve 114 is connected and mounted on the upper end side of the relay connection cylinder portion 116, and a flange 69 on the lower end portion on the housing 115 side of the check valve 114 is connected to a flange 69 protruding from the upper outer peripheral surface of the relay connection cylinder portion 116. Are joined, and the fastener 70 is attached to the flanges 69 of both of them (attached to each other), so that the check valve 114 and the relay connection cylinder portion 116 are connected to each other so as to be relatively rotatable. This check valve 114 prevents the backflow of fluid (here, water) from the downstream side to the upstream side.

The flange 69 on the lower end side of the connecting member 92 is joined to the flange 69 on the upper end side of the housing 115 of the check valve 114, and the fastener 70 that sandwiches both the flanges 69 is attached to the check valve 114. The connection member 92 is connected to be freely rotatable (relatively rotatable), and water-tightness of the fitting surfaces of the two 92 and 114 is similarly achieved by the O-ring 120. The connection member 92 is branched at its outlet side into a branch connection port 91a facing sideways and a branch connection port 91b facing upward, and one or both of these branch connection ports 91a and 91b have external piping (pipe lines) not shown. The connection is made using the female screw 94 of the connection port. In addition, a closing plug is attached to the branch connection port to which no external pipe is connected, and the branch connection port is closed. The branch direction of the branch connection port of the connection member 92 and the number of branches are not limited to the illustrated example, and can be appropriately set (designed).

In the third embodiment, the same effects as those in the first and second embodiments are obtained, but in the third embodiment, the pressure reducing valve 60 is provided on the outflow path forming member 23 side. As a result, the pressure loss of the water channel can be further reduced. That is, as shown in FIG. 1, when the pressure reducing valve 60 is provided on the inflow path forming member 22 side, the inflow pressure is reduced to a set pressure by the pressure reducing valve 60, but a water meter is provided downstream of the pressure reducing valve 60. 24 is attached, the water pressure of the water leaving the water meter 24 is reduced by the pressure loss caused by passing the water meter 24 rather than the set pressure of the pressure reducing valve 60.

On the other hand, in the third embodiment, since the pressure of pressure reduction by the pressure reducing valve 60 is set downstream of the water meter 24, water pressure loss passing through the water meter 24 may affect the downstream side. In comparison with the case shown in FIG. 1, an effect is obtained in which a decrease in water pressure corresponding to a water pressure loss passing through the water meter 24 can be suppressed. In particular, in this embodiment, the flow path closing plug 61 is installed on the upstream side of the pressure reducing valve 60. Therefore, it is possible to suppress the effect of reducing the loss of water pressure passing through the flow path closing plug 61, and the influence of the pressure loss of the water channel. It is possible to provide the flow meter installation unit 20 that can further suppress the above. Of course, when the pressure loss of the flow path closing plug 61 does not cause a problem (obstruction), the flow path closing plug 61 may be installed on the downstream side of the pressure reducing valve 60.

The flow meter installation unit of the present invention is not limited to the configuration of each of the above-described embodiments, and can adopt other various embodiments. For example, in the first, second, and third embodiments described above, the drive shaft 49 and the slide member 42 are connected by using the screw 50. However, as shown in FIGS. The slide member 42 may be integrated. In FIGS. 14 to 16, the drive shaft 49 includes a slide member side drive shaft 49a and a handle side drive shaft 49b, and the slide member 42 is formed integrally with the drive shaft 49a. A concave portion 98 is formed on the end surface of the handle side drive shaft 49b at a portion where the shafts 49a and 49b face each other, and the end portion of the slide member side drive shaft 49a is fitted into the concave portion 98.

A pin groove 99 is provided around the outer peripheral surface of the shaft 49a at a portion fitted in the recess 98, and a pin insertion hole penetrates the shaft 49b at a position passing through both diametrical grooves of the pin groove 99. A U-shaped pin (pin foot) 100 is attached through a pin groove 99 to the pair of pin insertion holes from the outside of the shaft 49b. Thus, the slide member side drive shaft 49a and the handle side drive shaft 49b are connected using the pin 100 as a connecting material. Openings 107 are formed in the wall surfaces facing each other (upward and downward in FIG. 14) of the cylindrical wall portion 106 through which the shaft of the inflow side base member 34 located in the connection region of both the drive shafts 49a and 49b.

The base portion of the lever 17 is fitted in the position of the drive shaft 49a in the area where the opening 107 is formed. A slit surface is formed on the surface of the drive shaft 49a to which the lever 17 is fitted, and the lever 17 and the drive shaft 49a are slidably fitted in the axial direction of the drive shaft 49a so that they cannot rotate relative to each other. Yes. The distal end side (lever operation part side) of the lever 17 protrudes outside through an opening 107 on one side (the upper side in FIG. 14 and the right side in FIG. 16). The width of the opening 107 is sufficiently wider than the width of the lever 17, and the forward / reverse rotational movement (rotation) of the lever 17 is possible in the opening 107. A concave wall surface 19 is formed from the peripheral edge portion of the shaft fitting hole of the lever 17 fitted to the drive shaft 49a so as to cover the connecting portion of the shafts 49a and 49b. The concave wall surface 19 is inserted through the pin groove 99. The pin foot connecting portion side of the pin 100 thus covered is covered to prevent the pin 100 from coming out.

A spring 18 is provided between the lever 17 and the wall surface on the inflow side base member 34 side to urge the lever 17 toward the connecting portion side of the shafts 49a and 49b. Reference numeral 17 denotes an end face of the opening 107 (the left end face in FIGS. 14 and 15). At this position, the recess inner wall surface 19 covers the pin 100 to prevent the pin 100 from coming off. By the way, when the pin foot of the pin 100 passing through the pin groove 99 is inserted (inserted) from the outside of the drive shaft 49b, the lever 17 is retracted against the biasing force of the spring 18 so as not to interfere with the work (FIG. 14). The operation is performed in a state of being slid in the right direction in FIG. A handle 52 is fixed to the base end side of the drive shaft 49b at a position protruding outward from the shaft insertion hole 37 of the inflow side base member 34.

In the flow meter installation unit 20 configured as shown in FIGS. 14 to 16, when the water meter 24 is replaced, the lever 17 is moved forward and backward together with the operation of the handle 52 or before the operation of the handle 52. By performing a rotation operation, the outer peripheral surface on the drive shaft 49a side including the slide member 42 (particularly the mounting portion of the O-ring) and the opposed inner wall surface of the cylindrical hole on the inflow side base member 34 side are forcibly rotated relative to each other. Since the handle 52 can be operated by releasing (releasing) the fixing force due to rusting between both wall surfaces, the handle 52 can be easily operated with a small force without requiring excessive force. Will be able to.

In the above embodiments, the handle 52 is integrally fixed to the drive shaft 49 (49a). However, the handle 52 may be detachably attached to the drive shaft 49 (49a). In this case, a cross section is formed in a non-circular shape such as a square shape (for example, a square shape or a hexagonal shape) at the base end portion of the drive shaft 49 (49a), and a corresponding hole shape is formed at the central portion of the handle 52. The center hole of the handle 52 is fitted into the base end portion of the drive shaft 49 (49a) when the handle 52 is used, and is removed from the drive shaft 49 (49a) after use. It may be. In the embodiment, the handle 52 is circular, but it may be a lever-shaped handle, and the shape of the handle is not particularly limited.

Further, in each of the above-described embodiments, the recess 27 is formed in the region below the water meter 24 on the mounting surface 26 of the mounting base 21, but an opening may be formed instead of the recess 27. In this case, as shown in FIG. 17, a lower step surface is formed on the opening edge 102 of the opening 101, and the folding edge 104 of the tray 103 is hung (mounted) on the step surface, and the tray 103 is placed on the opening 101. It is desirable to wear. The tray 103 can be easily formed from a synthetic resin or a metal material. In this way, if the tray 103 is attached, the leakage water received by the tray 103 when the water meter 24 is removed can be removed from the opening 103 by removing the tray 103 from the opening 101, so that the leakage water can be treated more effectively. It becomes easy. Of course, it is possible to use the flow meter installation unit 20 without attaching the tray 103 to the opening 101.

Further, in each of the above embodiments, the mounting base 21 is formed of the metal plate 25, but may be formed of other members such as a casting. However, if it is formed of the metal plate 25 as in this embodiment, it is possible to more effectively achieve weight reduction and size reduction.

Further, in each of the above embodiments, the unit valve 35 in which the pressure reducing valve 60 and the flow path closing plug 61 are integrated with the inflow path forming member 22 or the outflow path forming member 23 is rotated with respect to the central axis of the flow path at the mounting position. Although it is incorporated freely, the pressure reducing valve 60 and the flow path closing plug 61 may be integrated without being integrated. In this case, the pressure reducing valve 60 and the flow path closing plug 61 are respectively in the inflow path forming member 22 at the mounting position. In addition, it is desirable that the outlet channel forming member 23 is rotatably attached to the central axis of the channel.

Further, when the water meter 24 is installed by the flow meter installation unit 20, the flow meter installation unit 20 may be disposed anywhere as long as it can be connected to the external pipe of the water channel. In the above, the pipe shaft is taken as an example. For example, you may install and use in places other than a pipe shaft, such as a detached house and a factory.

Further, in each of the above embodiments, the water meter 24 has been described as an example of the flow meter. However, the flow meter installation unit 20 may be connected to a gas external pipe, and the gas meter may be installed as the flow meter. Of course, the flow meter installation unit 20 is connected to an oil flow pipe or a drink food flow pipe such as milk or juice, and is applied as a flow meter installation unit for measuring the flow rate of each measurement target fluid. It is possible.

Further, in each of the above-described embodiments, the O-ring is used at each location requiring water-tightness as a means for water-tightening, but a packing member other than the O-ring may be used.

Furthermore, in the third embodiment shown in FIG. 13, two check valves 74 and 114 are provided on the outflow path forming member 23, but the check valve 74 in the cylindrical housing 80 on one side is provided, for example. It can be omitted.

It is a longitudinal cross-sectional view of the unit which shows the structure of the example of 1st Embodiment of the flow meter installation unit which concerns on this invention in the attachment state of the water quantity meter. It is a cross-sectional view of the flow meter installation unit of FIG. It is operation | movement explanatory drawing of the flow meter installation unit at the time of attachment / detachment replacement | exchange of the water quantity meter. It is a perspective view which shows the structure of the mounting stand 21 which comprises the flow meter installation unit of the example of this embodiment. It is a perspective view which shows the structure of the inflow side base member 34 which comprises the flow meter installation unit of the example of this embodiment. It is a perspective view which shows the structure of the outflow path formation member 23 which comprises the flow meter installation unit of the example of this embodiment. 6 is an explanatory view showing another example of a connecting member 92 attached to the outlet of the outflow passage forming member 23. FIG. It is explanatory drawing which shows another attachment structural example of the outflow path formation member 23 and the connection member 92. FIG. FIG. 11 is an explanatory view showing still another example of the attachment configuration of the outflow path forming member 23 and the connecting member 92. FIG. 11 is an explanatory view showing still another example of the attachment configuration of the outflow path forming member 23 and the connecting member 92. It is a figure which shows the principal part structure of the 2nd Example of the flow meter installation unit which concerns on this invention. It is a perspective lineblock diagram of outflow way formation member 23 which constitutes a flow meter installation unit of the 2nd example of an embodiment. It is explanatory drawing of the 3rd Example of the flow meter installation unit which concerns on this invention. It is principal part explanatory drawing of the other embodiment of the flow meter installation unit which concerns on this invention. It is a figure of the cross section of FIG. It is XX schematic sectional drawing of FIG. It is explanatory drawing of the further another example of embodiment of the flow meter installation unit which concerns on this invention. It is explanatory drawing of the prior art example of a flow meter installation unit.

Explanation of symbols

20 Flow meter installation unit 21 Mounting base 22 Inflow path forming member 23 Outflow path forming member 24 Water meter (flow meter)
26 Mounting surface 27 Recess 35 Unit valve 42 Slide member 49 (49a, 49b) Drive shaft 52 Handle 60 Pressure reducing valve 92 Connection member

Claims (10)

On the mounting surface of the mounting frame, an inflow channel forming member having a flow channel formed therein is formed on one side of the flow meter arrangement region, and an outflow channel forming member having a flow channel formed therein on the other side. Are fixedly arranged by fastening means, and a receiving portion for receiving the outflow end side of the flow meter is formed on the outflow passage forming member, and a slide member is accommodated in the inflow passage formation member, and a distal end portion of the slide member Is a receiving portion that receives the inflow end side of the flow meter, and is a flow path that communicates with the flow path of the inflow path forming member inside the slide member and opens the outlet of the communication flow path to the front end surface of the slide member And a slide moving means for advancing and retracting the slide member is provided, and the flow meter is moved by the slide movement of the slide member by the slide member and the outflow path forming member. It is configured to be attached and supported by being sandwiched between the receiving parts, and to remove the flow meter by the backward movement of the slide member. The inflow path forming member and the outflow path forming member are each provided with a locking jaw protruding downward from the bottom side thereof. The mounting surface of the mounting base is formed with a locking hole at a position facing each locking jaw, and the inflow path forming member and the outflow path forming member are inserted and locked into the corresponding locking holes. In this state, it is fastened and fixed by the fastening means on the mounting surface of the mounting base, and the slide moving means communicates with the accommodation space of the slide member of the inflow path forming member and slides the slide member in the backward movement direction from the accommodation space. A drive shaft is inserted into the shaft insertion hole, and at least a part of the drive shaft and the shaft insertion hole are coupled by screwing. The advancing movement by screwing rotation of the drive shaft is transmitted from the drive shaft insertion distal end side to the slide member to perform the slide advance movement of the slide member, and the base end side of the drive shaft is inserted into the shaft insertion hole A flow meter installation unit, characterized in that a handle for operating screwing rotation is attached to the base end side of the drive shaft protruding outside from the inflow path forming member without being protruded. 2. The flow meter installation unit according to claim 1, wherein the handle is a detachable handle attached to the proximal end side of the drive shaft. The mounting base is made of a metal plate, and in the flow meter placement area on the mounting surface of the mounting base, a concave portion that is recessed downward is formed by deep drawing at a position below the installed flow meter. The flow meter installation unit according to claim 1 or 2, wherein the flow meter installation unit is provided. The mounting base is formed of a metal plate, and an opening hole is formed in the flow meter placement area on the mounting surface of the mounting base at the lower side of the flow meter to be installed. The flow meter installation unit according to claim 1 or 2, wherein a stopper is attached to the opening hole. The inflow path forming member is provided with a pressure reducing valve, and the pressure reducing valve is rotatably attached to the central axis of the flow path of the inflow path forming member at the attachment site. Item 5. The flow meter installation unit according to any one of Items 4 above. The inflow path forming member is provided with a unit valve in which a pressure reducing valve and a flow path closing plug are unitized, and this unit valve is rotatably attached to the central axis of the flow path of the inflow path forming member at the attachment site. The flow meter installation unit according to any one of claims 1 to 4, wherein the flow meter installation unit is provided. The outflow passage forming member is provided with a pressure reducing valve, and the pressure reducing valve is rotatably attached to the central axis of the flow path of the outflow passage forming member at the attachment site. Item 5. The flow meter installation unit according to any one of Items 4 above. The outflow path forming member is provided with a unit valve in which a pressure reducing valve and a flow path closing plug are unitized, and this unit valve is rotatably attached to the central axis of the flow path of the outflow path forming member at the attachment site. The flow meter installation unit according to any one of claims 1 to 4, wherein the flow meter installation unit is provided. On the outlet side of the flow path of the outflow path forming member, a connecting member having two or more branch connection ports connected to the external pipe is rotatably attached to the central axis of the flow path of the outflow path forming member at the mounting site. The flow meter installation unit according to claim 1, wherein the flow meter installation unit is provided. 10. The flow rate according to claim 1, wherein the flow path of the inflow path forming member and the outflow path forming member is a water channel, and the installed flow meter is a water meter. Meter installation unit.

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