JP2011117271A - Water-pipe survey equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide water-pipe survey equipment which can expedite the survey of the inside of pipeline of water pipe. <P>SOLUTION: The water-pipe survey equipment 1, which is attached to an air valve 6 (equipment for city water) fixed to a vertical pipe 9 of a T-shaped pipe for the city water, is provided with: an equipment body having a connection connected to the air valve 6 and a through hole 11b formed to be almost coaxially communicated with the pipe line 6a of the air valve 6 when it is connected to the air valve 6; a transparent window body 12 fixed to the equipment body for blocking the through hole 11b; an air vent formed on the equipment body; and a blocking body which can block the air vent. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to water pipe survey equipment suitable for water pipe survey.

  Water pipes (water pipes) are installed according to the area where people live, and when a new residential area is created, they are usually newly installed where necessary while being added to old water pipes. Once a water pipe is installed, it can be used for a very long time, so maintenance of the water pipe is very important.

  In general, when a water pipe has been installed for several years, water and rust easily adhere to the inner surface. And if scale or rust is mixed in the water that flows out through the water pipe, the water pipe in the area is usually stopped, and the vertical (vertical) portion of the water T-shaped pipe, that is, the vertical pipe Maintenance management is carried out by introducing a camera or the like through a repair valve fixed to the pipe, conducting a survey inside the pipe of the water pipe, and carrying out a cleaning tool and cleaning (water pipe washing). The T-shaped pipe for water supply constitutes a part of an appropriate portion of the water pipe extending in the horizontal direction, and water supply equipment such as an air valve, a fire hydrant, and a repair valve is fixed to the end of the vertical pipe. Is. The inventor of the present application proposes an air valve that can be quickly assembled and disassembled in Patent Document 1 and can easily enter a survey camera or the like into a water pipe.

JP 2009-121678 A

  However, investigation and cleaning in the pipeline with water pipes stopped will require a long working time, which will greatly hinder the normal lives of residents and others. The inventor of the present application is a place where water T-tubes, to which water supply equipment such as air valves, fire hydrants, repair valves, etc. are attached, are easily attached to scale and rust in the water pipes, and are relatively close to Focusing on a certain point, the present invention has been completed by earnestly researching how to use it to speed up the investigation in the pipeline.

  The present invention has been made in view of the above reasons, and an object of the present invention is to provide water pipe survey equipment that can speed up the investigation of pipes in water pipes.

  In order to achieve the above object, the water pipe survey equipment according to claim 1 is a water pipe survey equipment attached to a water supply equipment fixed to a vertical pipe of a water T-tube, A main body having a connecting portion connected to the equipment, a through hole formed so as to communicate substantially coaxially with a pipe of the water supply equipment when connected to the water supply equipment, and the through hole A transparent window body fixed to the equipment body so as to be closed, a ventilation hole formed in the equipment body or the transparent window body, and a closing body capable of closing the ventilation hole are provided.

  The water pipe inspection equipment according to claim 2 is the water pipe inspection equipment according to claim 1, wherein the vent hole formed in the equipment main body is a lower part of the through-hole closed by the transparent window body or the equipment main body. It is formed toward the upper surface or side surface of the equipment body from the lower surface of the device.

  The water pipe inspection equipment according to claim 3 is the water pipe inspection equipment according to claim 1 or 2, wherein the water pipe inspection equipment is provided in a peripheral portion of the through hole, and irradiates light toward the pipe of the water supply equipment. An illumination lamp is further provided.

  The water pipe survey equipment according to claim 4 is the water pipe survey equipment according to any one of claims 1 to 3, wherein the vertical pipe is freely slidable in the vertical direction with respect to the transparent window body or the equipment body. An insertion rod is further provided.

  The water pipe inspection equipment according to claim 5 is the water pipe inspection equipment according to claim 4, further comprising an illumination lamp provided at a tip of the vertical tube insertion rod.

  The water pipe inspection equipment according to claim 6 is the water pipe inspection equipment according to claim 4, wherein the water pipe inspection equipment is attached to the distal end portion of the longitudinal tube insertion rod body, and the flexible wire rod is attached to the distal end portion of the wire rod. And a light emitting body.

  According to the water pipe inspection equipment according to the present invention, the water supply equipment and the vertical pipe of the water T-shaped pipe to which it is attached can be easily visually observed through the transparent window. Visual inspection can be performed before entering the camera, etc., and work can be speeded up.

It is sectional drawing which shows the state which attached the water pipe investigation equipment 1 which concerns on the 1st Embodiment of this invention to the air valve. The water pipe survey equipment 1 is shown, in which (a) is a plan view, (b) a front sectional view, (c) a right side sectional view, and (d) a bottom view. It is sectional drawing which shows the obstruction body 13 of the water pipe research equipment 1 same as the above. It is sectional drawing which shows the state at the time of the normal time of the air valve 6 to which the same water pipe investigation equipment 1 is attached. It is sectional drawing which shows the state which attached the water pipe investigation equipment 2 which concerns on the 2nd Embodiment of this invention to the fire hydrant 7. The water pipe survey equipment 2 is shown, in which (a) is a front sectional view and (b) is a bottom view. It is sectional drawing which shows the state which attached the water pipe investigation equipment 3 which concerns on the 3rd Embodiment of this invention to the repair valve 8. FIG. The water pipe investigation equipment 3 is shown, and (a) is a front sectional view and (b) is a bottom view. It is front view sectional drawing of the example which provided the illuminating lamp 14 in the water pipe research equipment 1 which concerns on the 1st Embodiment of this invention. It is front view sectional drawing which shows a part of another example which provided the illuminating lamp 14 in the water pipe research equipment 1 which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the state which attached to the air valve 6 the modification 1 'of the water pipe research equipment 1 which concerns on the 1st Embodiment of this invention. FIG. 4 is an enlarged view of the vicinity of the through-hole 12a of the modified example 1 ', in which (a) is a front sectional view and (b) is a bottom view.

  Hereinafter, preferred embodiments for carrying out the present invention will be described. As shown in FIG. 1, the water pipe survey equipment 1 according to the first embodiment of the present invention is of a type that is attached above an air valve 6 that is a water supply equipment. The air valve 6 is fixed to a vertical portion (longitudinal pipe) 9 of a water T-tube through a repair valve 8 which is another water supply equipment.

  As shown in FIG. 2, the water pipe survey equipment 1 includes a equipment body 11 and a transparent window body 12. The equipment body 11 has a substantially cylindrical shape, and is attached to the air valve 6 so as to be connected to the air valve 6. When connected to the air valve 6, the equipment body 11 is substantially coaxial with the pipe 6 a of the air valve 6. And a stepped through hole 11b formed so as to communicate with each other (with substantially the same central axis). Specifically, the connecting portion 11a includes a fitting portion 11aa to be fitted into a pipe line (hollow portion) 6a of a valve box 61 (to be described later) of the air valve 6, and a predetermined radial direction (lateral direction) and upper direction above the fitting portion 11aa. Two engaging projections 11ab, 11ab projecting with a width and provided on the outer peripheral surface of the fitting portion 11aa, and when the levers 61c, 61c of the valve box 61 (described later) are tilted, they are pressed against each other from both sides. And a concave engaging groove 11ac is formed. In the stepped through hole 11b, the upper opening 11ba has a minimum inner diameter, stepped portions 11bc and 11bd are provided below, and the lower opening 11bb has a maximum inner diameter. The transparent window 12 is made of glass or transparent plastic and has a substantially disk shape. The transparent window 12 is fixed to one step portion 11bc of the through hole 11b of the equipment body 11 by a fixing member (screw) 12A. Blocked. Therefore, the inside can be easily visually observed from the outside through the transparent window 12.

  The equipment body 11 is formed from the lower part of the through hole 11b closed by the transparent window body 12 (specifically, from the other step portion 11bd of the through hole 11b) toward the upper surface of the equipment body 11. The air vent 11c is provided. This is because it is preferable from the viewpoint of ease of observation that the water rises and the transparent window body 12 is filled after the water pipe survey equipment 1 is attached to the air valve 6. In that case, the closed body 13 that can close the vent hole 11c as shown in FIG. 3 is provided. In the state where the closing body 13 is removed, the air accumulated below the transparent window body 12 passes through the vent hole 11c and is discharged to the outside by the pressure of water. The vent hole 11c can be formed in the lateral direction toward the side surface of the equipment body 11, but it is completely formed in the longitudinal direction toward the upper surface of the equipment body 11 as shown in FIG. Air is preferably discharged. A cock or the like can be used as the closing body 13, but in order to reduce the occupied space, it is preferable to have a screw structure and to provide a screw thread in the vent hole 11 c.

  The air valve 6 is configured to have a valve box 61 in which a flange portion 61a joined to the flange portion 81b of the repair valve 8 is provided at a lower portion and a pipe line (hollow portion) 6a is formed therein. The pipeline 6a is formed so as to penetrate from the upper end to the lower end of the valve box 61 (the center portion of the flange portion 61a). When the air valve 6 is in a normal operation (functioning as an air valve), as shown in FIG. 4, the valve body guide 62, the float valve body 63, and the floating valve body are connected to the pipe line 6 a of the valve box 61. 64 is disposed, a lid 65 is fitted into the upper end of the valve box 61, and a cover 66 is attached so as to cover the valve box 61. The connection part of the lid 65 is substantially the same as the connection part 11 a of the water pipe survey equipment 1. That is, the lid body 65 includes a fitting portion 65aa that is fitted into a pipe line (hollow portion) 6a of the valve box 61, and two engagement convex portions 65ab that project with a predetermined width in the radial direction and above the fitting portion 65aa. , 65ab and a concave engagement groove 65ac that is provided on the outer peripheral surface of the fitting portion 65aa and is pressed against both sides of the lever 61c, 61c of the valve box 61 when the lever 61c is tilted. It is. The air valve 6 has the same structure as that described in Patent Document 1.

  The water pipe inspection equipment 1 rotates the valve body 82 of the repair valve 8 and closes the pipe line 8a, and then covers the cover 66, the lid body 65, the valve body guide 62, the float valve body 63, and the floating valve body of the air valve 6. After 64 is removed, it is attached to the valve box 61. When the water pipe survey equipment 1 is attached to the valve box 61, as shown in FIG. 1, the fitting portion 11aa of the connecting portion 11a of the water pipe research equipment 1 is fitted into the valve box 61, and the water pipe survey equipment 1 is engaged. The protrusions 11ab and 11ab are inserted into the engagement recesses 61b and 61b of the valve box 61, and the levers 61c and 61c are tilted.

  After the water pipe survey equipment 1 is attached to the air valve 6 in this way, the valve body 82 of the repair valve 8 is rotated to open the pipe line 8a to raise the water, and the blocking body 13 is removed from the vent hole 11c. Vent hole 11c is opened and air is extracted. When the air is released, the air hole 11c is closed with the closing body 13, and the pipe line 6a of the air valve 6, the pipe line 8a of the repair valve 8, and the inside 9a of the vertical pipe 9 are visually observed through the transparent window body 12. At this time, it is better to shine light on the place you want to observe with your own electric lamp. Scale and rust are easily generated and attached along the water line (the contact portion between the water surface and the pipe inner surface). Since the water pipe extending in the horizontal direction is filled with water, the water line is usually located above the vertical pipe 9 of the T-shaped pipe for water supply. Since this water line goes up and down according to the water pressure and the accumulated air, dirt and rust are generated and adhered from the lowermost corner portion 9b of the vertical tube 9 to the air valve 6 (and the repair valve 8 and a fire hydrant 7 described later). It is easy.

  Next, the water pipe survey equipment 2 according to the second embodiment of the present invention will be described. As shown in FIG. 5, the water pipe survey equipment 2 is of a type that is attached above a fire hydrant 7 that is a water supply equipment. Therefore, a plug-in type (Machino type) male base 70 is attached to the water outlet 7aa of the fire hydrant 7. The fire hydrant 7 is fixed to a vertical tube 9 of a water T-shaped tube. In addition, the state of the fire hydrant 7 in which the plug-in type male base 70 is attached to the water outlet 7aa is a general state when a fire hose is connected.

  As shown in FIG. 6, the water pipe survey equipment 2 includes a equipment body 21 and a transparent window body 22. The equipment body 21 has a substantially cylindrical shape, and is attached to the fire hydrant 7 (base 70) so that the base 70 is fitted and connected to the connection part 21 a and to the pipe 7 a of the fire hydrant 7 when connected to the fire hydrant 7. And a stepped through hole 21b formed so as to communicate substantially coaxially. The shape of the connecting portion 21a is a plug-type (machino type) female type, similar to the end portion of the fire hose when connecting to the base 70. In the stepped through hole 21b, the upper opening 21ba has a minimum inner diameter, step portions 21bc and 21bd are provided below, and the lower opening 21bb has a maximum inner diameter. The transparent window 22 is made of glass or transparent plastic and has a substantially disk shape. The transparent window 22 is fixed to one step portion 21bc of the through hole 21b of the equipment body 21 by a fixing member (screw) 22A. Blocked. Therefore, the inside can be easily visually observed from the outside through the transparent window 22.

  The equipment body 21 is the same as the vent hole 11c of the water pipe survey equipment 1, that is, from the lower part of the through hole 21b closed by the transparent window body 22 (specifically, another one of the through holes 21b). A vent hole 21c formed from the stepped portion 21bd toward the upper surface or side surface of the equipment body 21 is provided. Moreover, the closed body (not shown) similar to the closed body 13 of the water pipe survey equipment 1 is provided.

  The fire hydrant 7 is provided with a valve box 71 in which a flange part 71a joined to the flange part 9c of the vertical pipe 9 is provided at the lower part and in which a pipe line 7a is formed. The pipe line 7a is formed so as to penetrate from the upper end (water outlet 7aa) of the valve box 71 to the lower end (center portion of the flange 71a). The valve body 72 is provided in the middle of the pipe line 7a, and the valve body 72 is rotated by the operation of the operation rod 73, so that the pipe line 7a is opened and closed.

  After fitting the water pipe surveying equipment 2 to the fire hydrant 7 by inserting the base 70 into the connecting part 21a of the water pipe researching equipment 2, the pipe 7a is conducted with the operation rod 73 to raise the water, and the water pipe survey is conducted. Through the transparent window body 22 of the equipment 2, the inside 9a of the vertical tube 9 of the water T-shaped tube can be visually observed in the same manner as in the first embodiment.

  The water pipe survey equipment 2 is not limited to a fire hydrant but can be attached to an air valve, for example, as long as a plug-type (machino type) male base 70 can be attached. The above-described air valve 6 can be fitted with a plug-type base 70 (which is described in Patent Document 1), and is attached via the base 70 and is also used by the water pipe surveying equipment 2 as a T-shape for water supply. The vertical tube 9 of the tube can be visually observed.

  Next, the water pipe survey equipment 3 according to the third embodiment of the present invention will be described. As shown in FIG. 7, the water pipe survey equipment 3 is of a type that is attached above the repair valve 8 that is a water supply equipment. As described above, the repair valve 8 is fixed to the vertical pipe 9 of the T-shaped pipe for water supply.

  As shown in FIG. 8, the water pipe survey equipment 3 includes a equipment body 31 and a transparent window body 32. The equipment body 31 has a substantially disk shape, and is attached to the repair valve 8 by four vertically extending small connecting parts that are connected to the flange 81b of the repair valve 8 using bolts and nuts. .. And a stepped through hole 31b formed so as to communicate substantially coaxially with the pipe line 8a of the repair valve 8 when connected to the repair valve 8. In the stepped through hole 31b, the upper opening 31ba has a minimum inner diameter, step portions 31bc and 31bd are provided below, and the lower opening 31bb has a maximum inner diameter. The transparent window body 32 is made of glass or transparent plastic and has a substantially disk shape. The transparent window body 32 is fixed to one step portion 31bc of the stepped through hole 31b of the equipment body 31 by a fixing member (screw) 32A. 31b is closed. Therefore, the inside can be easily visually observed from the outside through the transparent window body 32.

  The equipment body 31 is the same as the vent hole 11c of the water pipe survey equipment 1, that is, from the lower part of the through hole 31b closed by the transparent window 32 (specifically, another one of the through holes 31b). A vent hole 31c formed from the step 31bd toward the upper surface or side surface of the equipment body 31 is provided. Moreover, the closed body (not shown) similar to the closed body 13 of the water pipe survey equipment 1 is provided.

  The repair valve 8 is provided with a collar part 81a joined to the collar part 9c of the vertical pipe 9 at the lower part, and provided with a collar part 81b joined to another water supply equipment such as the air valve 6 at the upper part. It has the valve box 81 in which the pipe line 8a was formed. The pipe line 8a is formed so as to penetrate from the upper end of the valve box 81 (the central part of the flange part 81b) to the lower end (the central part of the flange part 81a). A valve body 82 is provided in the middle of the pipe line 8a, and the valve body 82 is rotated by the operation of the angle lever 83 to open and close the pipe line 8a.

  After attaching the water pipe survey equipment 3 to the repair valve 8, the angle lever 83 makes the pipe line 8a conductive to raise the water, and through the transparent window 32 of the water pipe research equipment 3, the first embodiment described above. Similarly to the case, the inside 9a of the vertical tube 9 of the water supply T-shaped tube can be visually observed. Since the water pipe surveying equipment 3 is attached to the repair valve 8 using bolts and nuts, it takes more time to install than the water pipe researching equipment 1 and 2.

  As described above, since the water pipe survey equipment 1, 2, or 3 can be used to visually observe from the water supply equipment (air valve 6, fire hydrant 7 or repair valve 8) to the vertical pipe 9 to which it is attached. By conducting visual observation before entering a camera or the like in a pipeline survey, the work can be speeded up and maintained.

  The water pipe survey equipment 1, 2, or 3 can be provided with an illumination lamp. The water pipe survey equipment 1 will be described below, but the same applies to the water pipe survey equipment 2 and 3. In the water pipe surveying equipment 1, it is possible to provide an illuminating lamp 14 that emits light toward the pipe 6 a of the air valve 6 around the through hole 11 b of the water pipe researching equipment 1. In this case, the illumination lamp 14 may be provided on the side or the lower side of the transparent window body 12 as shown in FIG. 9 or may be provided on the upper side of the transparent window body 12. Providing the illuminating lamp 14 on the side or below the transparent window 12 is more advantageous in terms of brightness than providing it above the transparent window 12. On the other hand, providing the illuminating lamp 14 above the transparent window 12 is advantageous in terms of waterproofing, and is also advantageous for extending electrical wiring (not shown) toward the upper surface or side surface of the equipment body 11. Further, a battery connected to the electrical wiring may be provided on the upper surface or the side surface of the equipment main body 11, or only the electrode terminal may be provided and connected to a hand-held battery at the time of investigation.

  Further, in the water pipe survey equipment 1, a vertical pipe insertion rod 15 that can be freely slid in the vertical direction with respect to the transparent window body 12 or the equipment body 11 is attached in the same manner as the water pipe research equipment 1 ′ described later ( 11), and as shown in FIG. 10, it is also possible to provide an illuminating lamp 14 at the tip of the vertical tube insertion rod 15. In this case, electric wiring may be passed through the vertical tube insertion rod 15 or the illumination lamp 14 may be an LED with a battery. In this way, the vertical tube insertion rod 15 can be rotated or slid to select various portions of the vertical tube 9 and illuminate locally very brightly. Needless to say, it may be used together with the illuminating lamp 14 around the through hole 11b. Moreover, the illuminating lamp 14 at the tip of the vertical tube insertion rod 15 can also function as a stopper 15C described later of the water pipe survey equipment 1 '.

  Next, the water pipe surveying equipment 1 ′, 2 ′, or the water pipe surveying equipment 1, 2 or 3 is modified so that the direction of the water flow in the pipeline can be investigated for maintenance management. 3 'will be described. The water pipe survey equipment 1 'will be described below, but the same applies to the water pipe survey equipment 2' and 3 '. As shown in FIG. 11, the water pipe survey equipment 1 ′ has a vertical pipe insertion rod 15 extending in the vertical direction attached to the water pipe research equipment 1. The vertical pipe insertion rod 15 can be freely slid in the vertical direction with respect to the transparent window 12 or the equipment body 11, and is inserted into the vertical pipe 9 when the water pipe survey equipment 1 ′ is attached to the air valve 6. In such a state, the length is such that the tip can be positioned near the lowermost portion of the vertical tube 9. A proximal end of a flexible wire 15A is coupled to the distal end of the vertical tube insertion rod 15 and a light emitter 15B is attached to the distal end of the wire 15A. As will be described later, the light emitter 15B follows the water flow in the pipe and is positioned downstream from the vertical tube insertion rod 15. Of course, the wire 15A is so strong that it can withstand even in a place where the water flow is steep, but it is not so tight that it can follow the water flow even in a place where the water flow is very loose. preferable. As the wire 15A, for example, a twisted yarn used as a fishing line is suitable. The light emitter 15B is not limited as long as it is light and small and emits light. For example, a phosphor, a phosphor, a battery LED, and the like are possible. In terms of lightness and cost, a phosphor or a phosphorescent material is preferable.

  Preferably, a stopper 15C that protrudes in the lateral direction is provided at the tip of the vertical tube insertion rod 15. The stopper 15C can prevent the vertical tube insertion rod 15 from being detached from the water pipe survey equipment 1 'when the vertical tube insertion rod 15 is pushed up by water pressure. The stopper 15C is preferably one that can be attached to the vertical tube insertion rod 15 by screwing.

  The vertical pipe insertion rod 15 can be attached to the water pipe survey equipment 1 'as in the following example. That is, as shown in FIG. 12, a vertical through hole 12 a into which the vertical tube insertion rod 15 can be inserted is formed in the transparent window 12. The through-hole 12a can be fitted with an elastic O-ring 15D near the center (vertical center), and the O-ring fixture 15E can be screwed below the through-hole 12a. In the O-ring fixture 15E, a hexagonal through hole is formed in the vertical direction so as to be rotated by a hexagon wrench, and a screw thread is formed on the outer surface. In the state where the vertical pipe insertion rod 15 is inserted into the through hole 12a of the transparent window 12, the water pipe inspection equipment 1 'is fixed by the O-ring fixing tool 15E to which the O-ring 15D is screwed and inserted into the vertical pipe. It is in close contact with the rod 15 and is stopped even if the water rises when the water pipe survey equipment 1 ′ is attached to the air valve 6. The vertical tube insertion rod 15 may be attached to the equipment body 11 by forming a through hole similar to the through hole 12 a in the equipment body 11.

  Such a water pipe inspection device 1 ′ is attached to the air valve 6 and operates the air valve 6 and the repair valve 8 in the same manner as the preparation for visual observation of the water pipe inspection device 1 described above. Then, the vertical tube insertion rod 15 is slid and its tip is positioned near the lowermost portion of the vertical tube 9. Then, the light emitter 15B follows the water flow in the pipe (shown by a broken line in FIG. 1) and comes to be positioned downstream from the vertical tube insertion rod 15. Since the light emitter 15B emits light, its position can be visually observed in the duct in the dark.

  The water pipe survey equipment 1 'can visually observe the direction of the water flow in the pipe in this way. At the same time, it is possible to visually observe water stains and rust as when using the water pipe survey equipment 1, but when you just want to make a visual observation of water stains and rust without using the vertical tube insertion rod 15. The vertical tube insertion rod 15 is removed, and the vertical tube insertion rod 15 is replaced with a short rod so that the water can be stopped, or the O-ring 15D and the O-ring fixture 15E are replaced with those without through holes. It is also possible.

  Using these water pipe survey equipment 1 ', 2', or 3 ', the direction of the water flow in the pipeline can be easily investigated, especially for the maintenance management of water pipes installed in a network. A water flow map showing the direction of the water flow can be easily created. When this water flow map is used, water supply equipment (air valve 6, fire hydrant 7 or repair valve 8) that needs to be investigated in accordance with the water flow map is identified in the pipeline survey, and the vertical pipe 9 is visually inspected for dirt and rust. By observing, the work can be further speeded up and maintained. In addition, this water flow map can be widely used for maintenance management. For example, for a new residential area, the water flow map can also be used when expanding the water pipe according to the current water pipe flow map.

  The water pipe survey equipment according to the embodiment of the present invention has been described above, but the present invention is not limited to that described in the above-described embodiment, and various modifications within the scope of the matters described in the claims. Design changes are possible. For example, the water pipe survey equipment 1, 2, or 3 can be applied to various types of water supply equipment by changing its shape. Specifically, the connecting portions 11a, 21a, 31a of the water pipe survey equipment 1, 2, or 3 constitute water supply equipment such as the valve box 61 of the air valve 6 and the valve box 81 of the repair valve 8. Changes can be made in accordance with the shape of the member or the member to be attached to the water supply equipment such as the cap 70 in the fire hydrant 7. For example, if the upper part of the valve box of the air valve is to attach other members using bolts and nuts, the water pipe surveying equipment 3 can be attached thereto. In addition, the members constituting the water supply equipment connected with the water pipe survey equipment are not limited to the valve box, and the members to be attached to the water supply equipment connected with the water pipe survey equipment are plug-in type (Machino type) ) Not limited to male type.

  Further, the vent holes 11c, 21c, 31c of the water pipe surveying equipment 1, 2, or 3 have the inner diameter of the lower openings 11bb, 21bb, 31bb of the through holes 11b, 21b, 31b (water valve 6, When the inner diameter of the upper opening of the pipes 6a, 7a, 8a of the fire hydrant 7 or the repair valve 8) is smaller than the lower surface of the equipment bodies 11, 21, 31 near the lower openings 11bb, 21bb, 31bb, It can be formed toward the side surface in some cases. When the vertical tube insertion rod 15 is used, the through-hole 12a is also used in place of the ventilation hole 11c of the water pipe survey equipment 1 '(or 1), and the vertical tube insertion rod 15 is used instead of the closing body 13. It is also possible to use both. The same applies to the water pipe survey equipment 2 ', 3' (or 2, 3). Even if the vertical tube insertion rod 15 is not used, depending on the case, if there is no problem in strength, the vent holes 11c, 21c are formed in the transparent window bodies 12, 22, 32 of the water pipe survey equipment 1, 2, or 3. , 31c can be formed.

1, 2, 3 Water pipe survey equipment 11, 21, 31 Equipment body 11a, 21a, 31a Equipment body connection part 11b, 21b, 31b Equipment body through hole 11c, 21c, 31c Equipment body ventilation hole 12, 22, 32 Transparent window 13 Blocking body 14 Illumination lamp 15 Vertical tube insertion rod 15A Wire 15B Luminescent body 6, 7, 8 Water supply equipment (air valve, fire hydrant, repair valve)
6a, 7a, 8a Pipes for water supply equipment 9 Vertical pipes for water supply T-shaped pipes

Claims (6)

Water pipe survey equipment attached to the water supply equipment fixed to the vertical pipe of the T-tube for water supply,
An equipment body having a connecting portion connected to the water supply equipment, and a through-hole formed so as to communicate substantially coaxially with the pipe of the water supply equipment when connected to the water supply equipment;
A transparent window body fixed to the equipment body so as to close the through-hole,
Vents formed in the equipment body or transparent window,
A closing body capable of closing the vent; and
Water pipe survey equipment characterized by comprising. In the water pipe survey equipment according to claim 1,
The water pipe survey characterized in that the vent hole formed in the equipment body is formed from the lower part of the through hole blocked by the transparent window body or the lower surface of the equipment body toward the upper surface or side surface of the equipment body. equipment. In the water pipe survey equipment according to claim 1 or 2,
A water pipe survey equipment, further comprising an illuminating lamp that is provided in a peripheral portion of the through hole and irradiates light toward a pipe of a water supply equipment. In the water pipe survey equipment according to any one of claims 1 to 3,
A water pipe survey equipment characterized by further comprising a vertical pipe insertion rod that can slide freely in the vertical direction with respect to the transparent window or the equipment body. In the water pipe survey equipment according to claim 4,
A water pipe survey equipment, further comprising an illuminating lamp provided at a tip of the vertical pipe insertion rod. In the water pipe survey equipment according to claim 4,
A flexible wire coupled to the tip of the longitudinal tube insertion rod,
A light emitter attached to the tip of the wire;
Water pipe survey equipment characterized by further comprising.

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