JP2010271089A - Water sampling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water sampling device mountable on an existing facility without stopping water supply, more accurately investigating water quality of tap water in a water pipe easily as needed. <P>SOLUTION: This device includes: a storage case body 2 formed connectably to the downstream side of a repair valve 12 which is a valve device for opening/closing a conduit branched from the water pipe 15; a test water takeout part 3 provided penetratingly through the inside/outside of the storage case body 2, for taking out water flowing in the water pipe to the outside; and a water sampling pipe part 5 with one end connected to the inner side end of the storage case body of the test water takeout part, with the other end side has water sampling port part 4 on the tip part, formed extensively/retractably so that the water sampling port part is extended up to a pipe core part of the water pipe via the repair valve. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a water sampling apparatus, and more particularly, to a water sampling apparatus used when examining the quality of tap water flowing in a water pipe, particularly a water pipe buried underground.

Tap water is indispensable for daily life, and its water quality must be maintained at a high level in such a way that it does not have any adverse effects on the human body. Therefore, water quality inspection of tap water is performed regularly or as necessary. This water quality test is performed based on laws and regulations, for example, the presence or absence of Escherichia coli, the presence or absence of toxic metals such as cadmium, the PH value, and the water pressure test. In order to inspect the quality of tap water flowing in a underground water pipe buried underground, the tap water flowing in the buried water pipe must be collected by some method. As a first method, it is known to equip an embedded water pipe with a water quality inspection device equipped with a water sampling device and take water as necessary to perform a water quality inspection. In addition, as a second method, it is also known to take tap water using an existing fire hydrant apparatus directly connected to an embedded water pipe and to perform a water quality inspection of the tap water.
On the other hand, as a sewage water sampling device that collects sewage water flowing through a sewage channel underground in a public road or a gas above the sewage and a sewage water sampling / collection device, it is telescopic from the lid of the manhole. There is known a technique in which a stretchable nozzle is extended to sewage and the sewage is collected (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2006-53124 (first page, FIG. 1)

However, in the first method, in order to equip the buried water pipe with a water quality inspection device equipped with a water sampling device, a predetermined section of the water pipe is cut off and a hole is excavated at a predetermined position. After that, since the equipment for water quality inspection is installed, preparation is difficult, and a large-scale construction is required, and the influence on the supply destination and surroundings is difficult to adopt. Further, in the second method, since a device for water quality inspection is provided in the stop lid portion of the fire hydrant portion, there is a problem that the structure of the stop lid portion must be modified. In this structure, in order to collect water near the core of the water pipe, the water that has always reached the upper part of the repair valve of the fire hydrant device is taken out and discarded, and then the water pipe There was a problem that the flowing water had to be sampled, and the operation was troublesome and took a lot of time and effort.
Further, the technique disclosed in Patent Document 1 is configured to take water by extending a telescopic nozzle from the manhole cover, and therefore cannot be used in a place without a manhole. In addition, the expandable and contractible nozzle is in a bare state, and such a nozzle cannot be attached to the fire hydrant device.

  The present invention has been made to solve the above-described problems of the prior art, and can be installed in existing equipment without shutting off the water pipe, and the quality of tap water flowing in the water pipe. The purpose is to provide a water sampling device that can perform a survey more accurately and easily as needed.

  The water sampling device of the present invention is provided so as to penetrate the inside and outside of the housing case body formed to be connectable to the downstream side of the valve device that opens and closes the pipe branched from the water pipe. One end is connected to a test water outlet for taking out water flowing through the water pipe to the outside, and an inner end of the housing case body of the test water outlet, and the other end is taken to the tip. And a water sampling pipe portion that is formed to be stretchable so as to extend through the valve device to the pipe core portion of the water pipe.

  In the water sampling apparatus of the present invention, after the valve case for attaching the fire hydrant or the like is mounted on the housing case body in a water-stopped state, the valve apparatus is opened and the water sampling port portion of the water sampling pipe portion is near the core of the water pipe Since the water near the pipe core of the water pipe can be collected from the test water outlet, it can be installed in an existing fire hydrant device without shutting off the water pipe. The quality of the tap water flowing through the water can be surveyed more accurately and easily if necessary.

BRIEF DESCRIPTION OF THE DRAWINGS The fragmentary sectional view which shows notionally the whole structure when it incorporates in the existing fire hydrant apparatus provided in the water pipe with which the water sampling apparatus by Embodiment 1 of this invention was embed | buried, and was extended | stretched. The fragmentary sectional view which shows the structure of the water sampling apparatus shown by FIG. The fragmentary sectional view which expands and shows the state extended until the water sampling port part of the extending | stretching direction front-end | tip part of the water sampling pipe part shown by FIG. 1 reached the pipe core part of a water pipe. The partial sectional view which expands and shows the latching | locking part mutually engaged so that it may not extend any more when the water sampling pipe part shown by FIG. 2 is extended to the maximum. The fragmentary sectional view which shows the modification of the latching | locking part shown by FIG. The fragmentary sectional view which shows the state which reduced the water sampling pipe part shown by FIG. 1 to the maximum. Sectional drawing which expands and shows the vicinity of the part by which the one end part of the wire member which is the linear member shown by FIG. 2 was fixed to the extending | stretching direction front-end | tip part of the water sampling pipe part. FIG. 2 is an enlarged partial cross-sectional view showing a linear member winding mechanism shown in FIG. 1 and its vicinity. The fragmentary sectional view which shows the principal part structure of the fire hydrant apparatus as an example by which the water sampling apparatus shown in FIG. 2 is apparatus. It is a figure which shows the principal part structure of the water sampling apparatus which concerns on Embodiment 2 of this invention, (a) is a fragmentary sectional view which shows notionally the whole structure when it incorporates in the existing fire hydrant apparatus and expand | extends a water sampling pipe part. (B) is a fragmentary sectional view which expands and shows the water intake part shown by Fig.10 (a).

Embodiment 1 FIG.
FIGS. 1-9 is a figure explaining the water sampling apparatus by Embodiment 1 of this invention, FIG. 1 is the water sampling of this Embodiment 1 to the existing fire hydrant apparatus provided in the buried water pipe. FIG. 2 is a partial cross-sectional view conceptually showing the overall configuration when the apparatus is incorporated and the water sampling pipe section is extended, and FIG. 2 is a partial cross-sectional view showing the configuration of the water sampling apparatus 1 shown in FIG. 3-8 is a figure which shows in detail the member which comprises the water sampling apparatus shown by FIG. 2, the relationship between these members, or a state, and the content of illustration is described in the following explanatory text. FIG. 9 is a partial cross-sectional view showing a main configuration of a fire hydrant device as an example in which the water sampling device shown in FIG. 2 is installed. In this document, the same or corresponding parts are denoted by the same reference symbols throughout the drawings.

  First, as shown in FIG. 9, the fire hydrant device 10 is installed in an installation space S having a predetermined width dug down from the surface of a public road or the like covering the upper part of the buried water pipe 15. The apparatus includes a repair valve 12 as a device and a connecting pipe 13 that forms a pipe branched from the water pipe 15. The buried water pipe 15 is buried further underground in the installation space S, and a connecting pipe 13 constituting the fire hydrant device 10 is branched into the buried water pipe 15 in the ground direction. The fire hydrant 11 includes a single-port or double-port connection port 11A that is connected to the hose of a fire engine at the time of fire extinguishing, and a stopper lid portion 11B that closes the connection port 11A, and is connected to the repair valve 12 by flanges. Yes. In addition, the repair valve 12 is composed of a lever type ball valve, and tap water flowing in the buried water pipe 15 is introduced into the fire hydrant 11 by switching the lever 12a that opens and closes the flow path when necessary, and from there the fire engine hose Can be supplied.

  The water sampling apparatus 1 according to Embodiment 1 is formed so as to be interposed between the fire hydrant 11 and the repair valve 12 of the fire hydrant apparatus 10 as described above, and is detachably mounted in this example. As shown in detail in FIG. 2, the water sampling apparatus 1 includes a housing case body 2 formed so as to be connectable to a repair valve 12 as a valve device that opens and closes a pipeline branched from a water pipe 15. A test water outlet 3 that is provided in a horizontal direction so as to penetrate inside and outside of the storage case main body 2 and takes out the water flowing through the water pipe 15 to the outside, and the storage case main body 2 of the test water outlet 3 One end is connected to the inner side end of the water pipe, and the other end has a water sampling port 4 at the tip, and the water sampling port 4 is connected to the pipe of the water pipe 15 through the repair valve 12 when the valve is opened. And a water collection pipe part 5 formed to be stretchable so as to extend to the core part.

  The housing case main body 2 includes a cylindrical straight pipe portion 21 having a predetermined diameter using a material having excellent corrosion resistance such as stainless steel, and flange portions 22 and 23 provided at both ends thereof. The flange portion 22 is a fire hydrant. The flange portion 11C is connected to the flange portion 12C of the repair valve 12 by a mounting bolt (not shown). The test water extraction part 3 is formed of, for example, a stainless steel pipe, is penetrated in a horizontal direction through a through hole 21 a formed in the upper part of the straight pipe part 21 of the housing case body 2, and is fixed to the housing case body 2. The horizontal mounting pipe portion 31 and an elbow portion 32 that is bent downward toward the water pipe 15 side at the inner side (right side in FIG. 1) end of the housing case body 2 of the horizontal mounting pipe portion 31 are provided. is doing. The test water extraction part 3 is inserted into the through hole 21a of the straight pipe part 21 constituting the housing case main body 2 at the end where the elbow part 32 is formed, and the fixing means such as welding is used at the through hole 21a part. It is fixed by. Further, the other end portion (left end portion in the figure) side of the horizontal mounting tube portion 31 protrudes outward from the straight tube portion 21.

  Next, the structure of the water sampling pipe part 5 formed to be stretchable will be described with reference to FIGS. 3 to 6 in addition to FIGS. 3 is an enlarged partial cross-sectional view showing a state where the water sampling port at the distal end in the extending direction of the water sampling pipe is extended until it reaches the core of the water pipe, and FIG. 4 is a maximum extension of the water sampling pipe. FIG. 5 is a partial cross-sectional view showing a modified example of the engaging part, and FIG. 6 shows a maximum of the water sampling pipe part. It is a fragmentary sectional view showing the state contracted. As shown in the figure, the water sampling pipe section 5 is connected to the inside of one pipe material adjacent in the flow direction so that the other pipe material can slide freely, and when it is extended to the maximum, A locking member A that is engaged with each other so as not to extend above is provided, and includes a slide member 51, a fixed rod 52, and a connecting rod 53, each of which is made up of a plurality of tubes whose outer diameters are successively reduced, and is arranged on the upper side of the figure. A connecting rod 53 made of a tube material having a maximum outer diameter on the one end side is connected to the lower end portion of the elbow portion 32.

  More specifically, as shown in FIG. 2, the water sampling pipe part 5 is connected to a distal end part of an elbow part 32 of the test water extraction part 3, and a connecting rod 53 is connected to a lower end part of the connecting rod 53. The fixed rod 52 is connected, and the slide member 51 is configured to be accommodated in the fixed rod 52 and is configured to include a plurality of slide rods 51 </ b> A to 51 </ b> E that are extendably connected. . The connecting rod 53, the fixed rod 52, and the slide member 51 are made of stainless steel pipe material. In this example, the fixed rod 52 and the slide member 51 are different in diameter from each other so that the outer diameter is successively reduced in the extending direction. ing. The slide member 51 includes a first slide rod 51A coupled so as to enter the inside of the fixed rod 52, a second slide rod 51B extending from the first slide rod 51A toward the buried water pipe 15 in order, 3 slide rod 51C, 4th slide rod 51D, and 5th slide rod 51E are comprised.

  The first slide rod 51A is inside the fixed rod 52, the second slide rod 51B is inside the first slide rod 51A, the third slide rod 51C is inside the second slide rod 51B, and so on. It is configured to be slidable so as to enter the inside of the upper pipe material up to the rod 51E. Moreover, the fixed rod 52 and each slide rod 51A-51E are each provided with the latching | locking part A which does not extend beyond the state extended to the maximum. That is, the adjacent slide rods, for example, the first slide rod 51A and the second slide rod 51B, the second slide rod 51B and the third slide rod 51C, and the like are connected to each other as shown in FIG. It has a simple structure. Since the structure of the connecting portion between the adjacent slide rods is the same, the engaging portion A provided at the engaging end portion of the second slide rod 51B and the third slide rod 51C will be described here representatively.

  4, that is, the inner peripheral surface of the second slide rod 51B is formed in a large-diameter portion D1 having an inner diameter L1 on the upper side from the vicinity of the lower end portion in the drawing, A short portion of a predetermined length on the 3 slide rod 51C side is formed in a small diameter portion D2 having an inner diameter L2, and a step portion B2 is formed at the boundary between the large diameter portion D1 and the small diameter portion D2. On the other hand, on the outer peripheral surface of the third slide rod 51C, a short portion having a predetermined length on the upper end side in the drawing on the second slide rod 51B side is formed in a large diameter portion D3 having an outer diameter L3. Most of the lower side of D3 is formed in a small diameter portion D4 having an outer diameter L4, and a stepped portion C1 is formed at the boundary between the large diameter portion D3 and the small diameter portion D4. And the latching | locking part A is comprised by the said step B2 and the step C1. Here, the outer diameter L3 is smaller than the inner diameter L1 and larger than the inner diameter L2. The outer diameter L4 is set smaller than the inner diameter L2. Therefore, when the third slide rod 51C inserted in the second slide rod 51B downward from the upper side of the figure is extended downward in the figure, the step part C1 is engaged with and locked to the step part B2. FIG. 4 shows a state in which the part A is functioned, and it is prevented from extending further.

  A step B1 (not shown) corresponding to the step C1 is provided on the outer peripheral surface of the upper end of the second slide rod 51B, and a step corresponding to the step B2 is provided on the inner peripheral surface of the lower end of the third slide rod 51C. Part C2 (not shown) is provided with a predetermined dimension. Further, the structure of the locking portion A in which the second slide rod 51B and the third slide rod 51C are engaged in the extending direction is not limited to that illustrated in FIG. It is good also as a structure. That is, the first ring member 511B is fixed to the engagement end portion of the second slide rod 51B, and the second ring member 512C is fixed to the engagement end portion of the third slide rod 51C, so that they can slide freely. It is good also as a structure which is not pulled out. Here, the dimensions of the engaging end portions of the second slide rod 51B and the third slide rod 51C are the same as those described in FIG. 4, and the lower end of the second slide rod 51B is the same as in the case of FIG. The locking portion A is formed by the step portion B2 formed by the small diameter portion D2 of the portion and the step portion C1 formed by the large diameter portion D3 of the upper end portion of the third slide rod 51C.

  Next, in addition to FIG. 1 to FIG. 6, the drawing pipe expansion / contraction device 6 provided for expanding / contracting the collection pipe part 5 composed of a plurality of pipes having different diameters configured to be stretchable as described above is shown in FIG. 7 and with reference to FIG. 7 is an enlarged cross-sectional view showing the vicinity of a portion where one end portion of the linear member made of a wire member is fixed to the distal end portion in the extending direction of the water sampling tube portion, and FIG. 8 shows the linear member winding mechanism and its portion. It is a fragmentary sectional view which expands and shows the neighborhood. In the figure, the water sampling tube part expansion / contraction device 6 is accommodated across the inside of the test water extraction part 3 and the inside of the water sampling pipe part 5, and one end is a tube material at the distal end in the extending direction of the water sampling pipe part 5. A linear member 61 fixed to the slide rod 51E, and a linear member winding that winds or feeds the other end of the linear member 61 provided on the outer side of the housing case main body 2 in the test water outlet 3 And a take-off mechanism 62.

  The linear member 61 is made of, for example, a stainless steel wire, and one end thereof is fixed to a pin 63 fixed so as to cross the inside of the fifth slide rod 51E at the distal end portion of the slide member 51 in the extending direction as shown in FIG. Has been. The linear member 61 then passes through the inside of the slide member 51, that is, the fourth slide rod 51D, the third slide rod 51C, the second slide rod 51B, and the first slide rod 51A, and the fixed rod 52 and The other end of the linear member 61 is joined to a linear member winding mechanism 62 that winds up the linear member 61.

  The linear member take-up mechanism 62 includes a cylindrical winding drum member 621 to which the other end portion of the linear member 61 is fixed and winds or feeds the linear member 61, and a horizontal attachment of the test water take-out portion 3. A pipe R is connected to the left end of the pipe 31 and holds the winding drum member 621 in a watertight manner so that the winding drum member 621 is rotatable, and a flow path R for allowing collected tap water to flow outside is a winding drum member. A cylindrical case body 622 formed around 621 in which both upper and lower ends in the figure are closed, and coaxially provided at one axial end portion (upper part in the figure) of the winding drum member 621 and outside the case body 622 The rotating shaft 623 protruded upward in the figure, and a handle 624 as a rotating means fixed to the rotating shaft 623 and rotating the winding drum member 621.

  In order to facilitate the winding operation by the linear member winding mechanism 62, the stopper mechanism 7 is engaged with the winding drum member 621 of the case body 622 and sets an allowable range of the number of rotations of the winding drum member 621. Is provided in the lower part of the case body 622 in the figure. In addition, two holes penetrating left and right in FIG. 8 are formed in the peripheral wall portion of the cylindrical case body 622, the horizontal mounting pipe portion 31 is connected to one hole on the right side of the figure, and the other hole is illustrated in the figure. A delivery pipe 33 for sending tap water is connected to the measuring instrument that is omitted, and an electromagnetic valve 34 that opens and closes the flow path of the delivery pipe 33 is interposed in the delivery pipe 33. On the downstream side, a vacuum pump 35 is provided for exhausting air in the pipeline before measurement. A grip portion 624a is connected to the upper surface portion of the handle 624, and the winding drum member 621 is rotated by turning the handle 624 by the grip portion 624a. Further, the rotating shaft 623 and the like of the winding drum member 621 are sufficiently sealed.

  Next, the stopper mechanism 7 will be described mainly with reference to FIG. The stopper mechanism 7 provided at the lower portion of the case body 622 sets an allowable range of the number of rotations of the winding drum member 621 added to facilitate the operation of the linear member winding mechanism 62 by the handle 624. It is. As shown in the figure, the stopper mechanism 7 is coaxially provided at the other axial end of the winding drum member 621 and protrudes outward from the case body 622, and is screwed into the screw shaft 71 and wound. A stopper member 72 that moves in the vertical direction as shown by an arrow E along the screw shaft 71 as the body member 621 rotates, and a case body 622 that is erected downward in parallel to the screw shaft 71. A plurality of rod-shaped guide members 73 that guide the member 72 and a plate-like fixing member 74 that is fixed to the protruding end of the guide member 73 and restricts the movement of the stopper member 72 are used. The screw shaft 71 is integrally formed on the other end of the winding drum member 621 so as to protrude coaxially.

  In addition, the stopper member 72 and the two guide members 73 are engaged so as to generate a predetermined frictional force, and the plurality of slide rods 51A to 51E of the water sampling pipe portion 5 are stopped at a predetermined position. However, the frictional force is set so that the slide rods 51A to 51E do not fall under their own weight unless the handle 624 is rotated. The stopper member 72 moves up and down in the direction of the arrow E along the screw shaft 71 according to the rotation of the screw shaft 71. For example, when the stopper member 72 rises to the maximum, the stopper member 72 contacts the lower surface of the case body 622 and stops the rotation of the handle 624. It is supposed to be. At this time, the fifth slide rod 51E is pulled up to the maximum, and as shown in FIG. 6, the slide member 51 including all the slide rods 51A to 51E including the fifth slide rod 51E is substantially contained in the fixed rod 52, and is collected. The whole including the water mouth portion 4 is housed in the straight pipe portion 21 of the housing case body 2.

  On the other hand, when the stopper member 72 is lowered to the maximum along the screw shaft 71, the stopper member 72 comes into contact with the fixing member 74 to stop the rotation of the handle 624. All the slide rods 51 </ b> A to 51 </ b> E including the fifth slide rod 51 </ b> E are pulled out to the maximum, and the water sampling port 4 provided at the tip of the fifth slide rod 51 </ b> E is extended to the vicinity of the pipe core of the water pipe 15. Become. As described above, the stopper mechanism 7 has a function of setting an allowable range of the rotational speed of the winding drum member 621. Further, as shown in FIG. 7, the water sampling port 4 is fixed to the tip of the fifth slide rod 51E, and has a thick wall having an inflow port 41a composed of a vertical hole communicating with the central hole of the fifth slide rod 51E. A cylindrical water intake member 41 is used. The water intake member 41 may be formed integrally with the fifth slide rod 51E, or the hole at the tip of the fifth slide rod 51E may be used as the water sampling port portion 4. In this case, the water intake member 41 is not necessary.

  Next, a description will be given mainly with reference to FIG. 8 of a viewing window portion that allows the marker of the linear member 61 added to facilitate the operation when the water sampling tube portion 5 is expanded and contracted. . As shown in the figure, at least one point of a linear member 61 made of a wire member is marked with a mark M indicating that the water sampling port 4 has reached the vicinity of the core of the water pipe 15, and the horizontal mounting is performed. In the vicinity of the outer side of the housing case main body 2 of the pipe part 31, a viewing window part 65 through which the mark M when reaching the vicinity of the pipe core can be seen is provided. The mark M is written at at least one location of the linear member 61, and the mark M corresponds to the distance from the winding drum member 621 that is the other end of the linear member 61 to the vicinity of the pipe core of the water pipe 15. For example, the mark M can be made by using an appropriate means such as fixing a material different from other parts such as a rectangular wire to the position. In addition, although the distance to the pipe core of the water pipe 15 may vary depending on the burial location, even in that case, since the distance from the ground at the location where the fire hydrant device 1 is installed is known, It can be easily known which part of the linear member 61 should be marked with the mark M.

  As described above, the linear member 61 is fed out by the linear member winding mechanism 62 so that the fifth slide rod 51E and the like can be stopped at an arbitrary position. Different marks M may be marked at two places or three places corresponding to the distances up to. A viewing window portion 65 for viewing the mark M of the linear member 61 includes a pipe-shaped mounting member 651 fixed to the horizontal mounting tube portion 31 and a water pressure at an outer side end portion of the mounting member 651. It is comprised with the glass 652 which is a transparent member inserted so that it might endure.

  Next, an operation example of the first embodiment configured as described above will be described. First, in order to incorporate the water sampling device 1 into the existing fire hydrant device 10, in the housing case body 2 having the water sampling tube portion expansion / contraction device 6, the water sampling tube portion 5 is reduced and the housing case body 2 as shown in FIG. 6. Keep it housed inside. Next, the fire hydrant 11 is removed with the lever 12a of the repair valve 12 made of a lever-type ball valve in a water-stopped state, the housing case body 2 is sandwiched between the fire hydrant 11 and the repair valve 12, and the flange portion 11C of the fire hydrant 11 The flange portion 22 of the housing case main body 2, the flange portion 23 of the housing case main body 2, and the flange portion 12C of the repair valve 12 are each tightened and integrated with bolts or the like. At this time, there is no need to stop the flow of tap water in the water pipe 15.

  In order to inspect the quality of tap water flowing in the water pipe 15, first, a predetermined measuring instrument (not shown) is connected to the end of the delivery pipe 33, and the electromagnetic valve 34 is opened to open the vacuum pump 35. After the air in the pipe is exhausted by the above, the electromagnetic valve 34 is closed to complete the preparation. Next, the lever 12a of the repair valve 12 is opened to allow water to flow through the repair valve 12, and the stopper member 72 of the stopper mechanism 7 is rotated until it comes into contact with the fixed member 74, thereby feeding the linear member 61. . Then, when the fifth slide rod 51E of the slide member 51 passes through the repair valve 12 and gradually descends toward the water pipe 15 and extends to the maximum extent, the fourth slide rod 51D is caused by the presence of the locking portion A. Similarly, when the third slide rod 51C, the second slide rod 51B, and the first slide rod 51A are sequentially lowered and extended by a predetermined dimension, the fifth slide rod 51E is placed in the water pipe 15 as shown in FIG. When the stopper mechanism 7 is reached, the water sampling port 4 at the tip of the water sampling pipe 5 reaches the vicinity of the pipe core in the water pipe 15.

  In addition, when each 5 slide rod 51A-51E of the slide member 51 is slid and extended, since the latching | locking part A is formed in the edge part of each slide rod 51A-51E, it extends beyond the maximum extension. The slide rods 51 </ b> A to 51 </ b> E do not come off. Further, when the handle 624 of the linear member take-up mechanism 62 is turned and the slide member 51 of the water sampling pipe part 5 is extended to the water pipe 15 side, the linear member 61 is taken while looking through the peeping window part 65. The water inlet 4 can be operated so as to reach the pipe core in the water pipe 15. When the electromagnetic valve 34 is opened after confirming that the water sampling port 4 has reached the inside of the water pipe 15, water near the pipe core of the water pipe 15 flows from the water sampling port 4 and slides due to water pressure. It is sent out to the delivery pipe 33 via the member 51 and the test water outlet 3. At the time of water quality inspection, the required amount of water taken is taken into a measuring instrument and a predetermined water quality inspection is performed.

  On the other hand, after the predetermined water quality test is completed, the reverse operation is performed. That is, first, the electromagnetic valve 34 stops the flow of water from the test water outlet 3 to the downstream side, and the measuring instrument (not shown) is removed. Next, by rotating the winding drum member 621 of the linear member winding mechanism 62 in the reverse direction by the handle 624 and winding up the linear member 61, the water sampling pipe portion 5 is reduced, and the water sampling port portion at the tip portion thereof is reduced. 4 is extracted from the water pipe 15 and is placed in a predetermined position as shown in FIG. Then, the repair valve 12 is closed, and the system waits for the next periodic water quality inspection in that state. During the standby, the fire hydrant 11 can be used for its original purpose whenever necessary.

As described above, according to the first embodiment, the following effects can be obtained.
(1) After the storage case main body 2 of the water sampling apparatus 1 is installed between the fire hydrant 11 and the repair valve 12, the water sampling port 4 at the tip of the telescopic slide member 51 constituting the water sampling pipe 5 is connected to the water pipe. Since the water sampling port 4 can reach the pipe core of the water pipe 15 by extending the pipe 15 into the pipe 15, the tap water actually flowing through the pipe core can be easily taken. As a result, the water pipe can be detachably installed in the existing equipment without shutting off the water, and a more accurate water quality survey in the water pipe can be easily performed as necessary.

(2) Since the water sampling pipe part 5 and the water sampling port part 4 are accommodated in the housing case body 2 when the water sampling pipe part 5 formed to be stretchable is contracted, the water sampling apparatus 1 is replaced with the existing fire hydrant device. 10 fire hydrants 11 and the repair valve 12 can be sandwiched and attached. Therefore, it can be used without modifying the fire hydrant 11 itself, without impairing the function of the fire hydrant 11 itself, and can be easily installed or removed.
(3) Since the slide member 51 is formed in a size that can be accommodated in the housing case body 2, when the housing case body 2 is installed between the fire hydrant 11 and the repair valve 12, the water quality of the tap water in the water pipe is also equipped. The slide member 51 can be reduced in size when waiting for the next inspection after the survey is completed. As a result, the slide member 51 is protected by the housing case body 2 and does not interfere with or be damaged by other components. In addition, the structure is simple, making it lightweight and compact.

(4) The connecting rod 53, the fixed rod 52, and the slide member 51 in a state in which the slide rods 51A to 51E constituting the water sampling device 1 can be accommodated in the housing case main body 2, so that the built-in fire hydrant 11 and What is necessary is just to form the flange part etc. corresponding to the repair valve 12, and it can respond to any kind of fire hydrant apparatus.
(5) Since the water sampling device 1 is installed above the repair valve 12 in the installation space S of the existing fire hydrant device 10, the repair valve 12 is operated so that water does not flow to the water sampling device 1. be able to. As a result, maintenance of the water sampling apparatus 1 becomes easy.
(6) Since the test water extraction part 3 and the water sampling pipe part 5 constituting the water sampling apparatus 1 are made of stainless steel that is resistant to corrosion, long-term installation is possible even with the measuring instruments removed. As a result, cost performance can be achieved.

(7) A linear member winding mechanism 62 for winding the linear member 61 is provided outside the housing case main body 2 of the test water extraction portion 3, and the tip of the linear member 61 is the first of the slide member 51. 5 is fixed to the slide rod 51E via a pin 63. Therefore, when the linear member winding mechanism 62 is driven and the linear member 61 is fed out or wound up, the linear member winding mechanism 62 can be operated outside the housing case body 2, so that it is easy to operate. Workability can be improved.
(8) Since the linear member take-up mechanism 62 is provided with the stopper mechanism 7, when the handle 624 for taking up or feeding the linear member 61 is operated, it is rotated until the stopper mechanism 7 is operated, whereby the water sampling port portion 4 can be moved to a predetermined position, so that the linear member 61 can be easily fed and wound.

  (9) The fixed rod 52 constituting the water sampling pipe section 5 and the slide rods 51A to 51E of the slide member 51 are configured such that the other pipe material slidably enters the inside of one pipe material adjacent in the flow direction. Since the locking portion A is provided with stepped portions that are engaged with each other so as not to extend any more when extended to the maximum and stretched to the maximum, the slide rods 51A to 51E are maximized. When stretched, it is possible to obtain an effect that it does not stretch any more and does not come out.

  (10) When the slide member 51 of the water sampling pipe part 5 is extended to the water pipe 15 side, the water sampling port part 4 is located inside the water pipe 15 and the pipe core while looking through the peeping window part 65 when the linear member 61 is extended. It can be operated to reach the section. As a result, it can be easily confirmed that the water sampling port 4 has reached the pipe core in the water pipe 15 outside the housing case body 2, and an accurate water quality test can be performed reliably.

Embodiment 2. FIG.
FIG. 10 is a diagram showing a main configuration of a water sampling apparatus according to Embodiment 2 of the present invention, and FIG. 10 (a) conceptually shows the overall configuration when the water sampling pipe section is extended into an existing fire hydrant apparatus. FIG. 10B is an enlarged partial sectional view showing the water intake port shown in FIG. 10A. In the second embodiment, the water sampling port 4 has a first water intake hole for taking tap water in the water pipe 15 from below, and a second water intake hole for taking water from a direction communicating with and orthogonal to the first water intake hole. The slide member is constituted by a two-stage slide rod. The linear member winding mechanism 62 is schematically shown, and the wire member, the electromagnetic valve, and the like are not shown. In the figure, the fixed rod 52 constituting the water sampling pipe part 5 is integrally formed so as to continuously extend from the elbow part 32 constituting the test water extraction part 3 in the downward direction in the figure, and is used in the first embodiment. The connecting rod was omitted.

  The slide member 51 is configured to be a two-stage telescopic type of a first slide rod 51A and a second slide rod 51B, and the water sampling port 4 is fixed to the distal end portion of the second slide rod 51B at the distal end portion. The water sampling port 4 includes a thick pipe-shaped first water intake member 42 attached to the distal end of the second slide rod 51B, and a small-diameter pipe-shaped first water pipe attached to the side surface of the first water intake member 42. 2 intake members 43. And the inner diameter part of the 1st water intake member 42 is made into the 1st water intake hole 42a which takes in tap water from the lower part orthogonal to the axial direction of the water pipe 15, and the internal diameter part of the 2nd water intake member 43 is the 1st water intake hole. The second intake hole 43a is connected to 42a and takes tap water from a direction along the flow of water. Therefore, tap water is taken from two places, the first intake hole 42a and the second intake hole 43a. In addition, it is preferable that the 2nd water intake member 43 is arrange | positioned facing the upstream of the flow of the tap water of the buried water pipe 15. FIG. Since other configurations are the same as those in the first embodiment, description thereof is omitted.

  In the second embodiment configured as described above, when the quality of the tap water in the water pipe 15 is investigated, the water sampling device 1 is repaired with the fire hydrant 11 of the fire hydrant device 10 in the same manner as in the first embodiment. Similarly, when the slide member 51 of the water sampling pipe 5 is extended to the water pipe 15 side by the water sampling pipe expansion / contraction device 6, it is sampled when the water sampling port 4 reaches the water pipe 15. Water flows from the first water intake hole 42 a and the second water intake hole 43 a of the water inlet 4, and is sent out to the delivery pipe 33 through the slide member 51 and the test water extraction part 3 as indicated by an arrow F due to water pressure. Further, when the water sampling port 4 is made to reach the vicinity of the pipe core of the water pipe 15, the tap water flowing in the vicinity of the pipe core is orthogonal to the axial direction of the water pipe 15 (left and right direction in the figure) from the first water intake hole 42a. At the same time water is taken in the direction, water is taken in the axial direction of the water pipe 15 from the second water intake hole 43a.

  As described above, according to the second embodiment, when the quality of the tap water in the water pipe 15 is investigated, when the slide member 51 of the water sampling pipe part 5 is extended to the water pipe 15 side, the water sampling port part 4 becomes the water pipe. When the water reaches the inside 15, water flows from two locations of the first water intake hole 42 a and the second water intake hole 43 a of the water sampling port 4. Therefore, a necessary amount of water can be taken without difficulty. In addition, when the water sampling port 4 is made to reach the vicinity of the pipe core of the water pipe 15, water flowing near the pipe core can be taken, so that a more accurate water quality survey in the water pipe can be performed. Can do. Needless to say, the same effects as those of the first embodiment can be obtained.

  It should be noted that the present invention is not limited to the embodiments exemplified above, but includes modifications and improvements as long as the object of the present invention can be achieved. For example, in each of the above embodiments, a string-like wire member is used as the linear member 61. However, the present invention is not limited to this, and a thin rope or the like may be used. In this case, it is preferable that the stopper member 72 and the guide member 73 are engaged with each other by forming a so-called fool hole in the stopper member 72 so as to hardly generate friction. And when you want to stop the water intake part 4 in arbitrary positions, what is necessary is just to fix the handle 624 so that it may not move.

  Furthermore, in the said embodiment, although the test water extraction part 3, the water sampling pipe part 5, the water sampling port part 4, the connection rod 53, the fixed rod 52, and the slide member 51 were made from stainless steel, it is not restricted to this, For example, Each member may be made of a synthetic resin having excellent corrosion resistance. Moreover, in the said embodiment, although the stainless steel material was used as a linear member, you may make it use not only this but a resin rope etc., for example. Furthermore, although the slide member 51 has a five-stage configuration of the first slide rod 51A to the fifth slide rod 5E or a two-stage configuration of the first slide rod 51A to the second slide rod 5B, it is not limited to this. .

  DESCRIPTION OF SYMBOLS 1 Water sampling apparatus, 2 Storage case main body, 21 Straight pipe part, 3 Test water extraction part, 31 Horizontal attachment pipe part, 33 Delivery pipe, 34 Solenoid valve, 35 Vacuum pump, 4 Water sampling port part, 41 Water intake member, 42 1st water intake member, 43 2nd water intake member, 5 water intake pipe part, 51 slide member, 51A-51E slide rod, 511B 1st ring member, 512C 2nd ring member, 52 fixed rod, 6 water intake pipe part expansion device, 61 Linear member, 62 linear member winding mechanism, 621 winding drum member, 622 case body, 7 stopper mechanism, 71 screw shaft, 72 stopper member, 73 guide member, 74 fixing member, 65 viewing window, 10 fire hydrant device, 11 Fire hydrant, 12 Repair valve (valve device), 12a Lever, 15 Water pipe, A Locking part, B2 stage Part, C1 step, M mark, R channel, S installation space.

Claims (10)

  A storage case main body formed to be connectable to the downstream side of the valve device that opens and closes a pipe branching from the water pipe, and water flowing through the water pipe provided outside the storage case main body to the outside One end is connected to the inner side end of the housing case main body of the test water outlet for taking out, and the other end side has a water sampling port at the tip, and A water sampling apparatus comprising: a water sampling pipe section that is formed to be stretchable so that a water sampling port section extends through the valve device to a pipe core section of the water pipe.   The water sampling pipes are connected to each other in such a manner that the other pipe is slidably inserted into one of the pipes adjacent in the flow direction, and is not stretched further when extended to the maximum. The water sampling device according to claim 1, comprising a plurality of pipes having different diameters provided with engaging portions to be engaged.   The water sampling apparatus according to claim 2, wherein the water sampling pipe part is formed to have a size that fits in the housing case body when all of the plurality of pipe members are reduced.   A linear member that is accommodated across the inside of the test water extraction part and the inside of the water sampling pipe part, and one end part of which is fixed to the pipe member at the distal end in the extending direction of the water sampling pipe part, and the test water extraction part 4. A linear member winding mechanism provided on the outer side of the housing case main body at the other end portion of the linear member for winding or feeding out the other end portion of the linear member. The water sampling device described in 1.   The linear member take-up mechanism includes a case body fixed to the outer side of the housing case main body at the test water extraction portion, and a watertight holding rotatably inside the case body. A winding drum member that winds up the end portion or feeds the wound linear member, a rotating shaft that is coaxially provided at one axial end portion of the winding drum member and protrudes outside the case body, and this rotation 5. The water sampling apparatus according to claim 4, wherein the water sampling apparatus is configured by using a rotating means that is engaged with a moving shaft and rotates the winding drum member.   A stopper mechanism is provided that prevents the turning of the turning means when the water collecting port part reaches a predetermined part in the water pipe when the water collecting pipe part is extended by the turning means. The water sampling apparatus according to claim 5.   The stopper mechanism is coaxially provided at the other axial end of the winding drum member and protrudes outward from the case body, and is screwed into the screw shaft to rotate the winding drum member. A stopper member that moves along the screw shaft, a guide member that stands in parallel with the screw shaft with respect to the case body, and that guides the stopper member, and is fixed to the protruding end of the guide member. The water sampling device according to claim 6, wherein the water sampling device is configured using a fixing member that restricts movement of the water.   A mark according to the distance to the vicinity of the pipe core of the water pipe is attached to at least one location of the linear member, and a viewing window portion is provided on the outside of the housing case main body of the test water outlet. The water sampling apparatus according to any one of claims 4 to 7, wherein the water sampling apparatus is provided.   The water sampling port is connected to the first water intake hole for taking the tap water in the water pipe from a direction orthogonal to the axial direction of the water pipe, and is orthogonal to the axial direction of the water pipe. The water sampling apparatus according to any one of claims 1 to 8, further comprising a second water intake hole for taking water from a direction in which the water is taken.   The water sampling device according to any one of claims 1 to 9, wherein the valve device comprises a repair valve.

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