JP2010275794A - Equipment-inspection device for tunnel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve efficient cleaning of a lighting fixture, which is a permanently-installed facility, by making use of a water resource and a device of water-spray equipment which is an emergency facility. <P>SOLUTION: The water-spray equipment which sprays water for fire-fighting which is supplied under pressure through a water-spray head 20 to the interior of a tunnel 10 is provided as the emergency facility. Also, a plurality of the lighting fixtures 24 as the permanently-installed facility are provided along the tunnel wall surface 11 in the longitudinal direction of the tunnel 10. A front-cleaning head 26 and a back-cleaning head 28 are arranged in proximity to the lighting fixtures 24 as a cleaning head, and a point, to which the water for fire-fighting supplied to the water spray head 20 under pressure is discharged, is switched to the cleaning head by a selector-valve device. Then the lighting fixtures 24 are washed and cleaned by the spray of water from the cleaning head. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a tunnel facility inspection apparatus for cleaning and inspecting lighting lamps that are permanent facilities.

  Conventionally, an illumination lamp is arranged as one of the permanent installations on the wall surface in the tunnel of an automobile exclusive road, and is regularly inspected and cleaned.

  As a method of cleaning the lighting lamp, lane regulation is performed, the cleaning car is run and stopped at the installation position of the lighting lamp, and the cleaning device provided at the tip of the arm mounted on the cleaning car is set on the lighting lamp and sequentially Work at heights to clean the lighting fixtures. The frequency of inspections including cleaning of such lighting fixtures is about once a year. As for lane restrictions, one-way traffic is mainly restricted to one lane, and face-to-face traffic must be closed at night.

As another cleaning facility, a cleaning robot is arranged on a rail installed along an illumination lamp, and the cleaning robot moves along the illumination lamp and sequentially cleans it.

JP 2007-138703 A JP 2005-339920 A JP 2002-126120 A

  However, in the cleaning of the illumination lamp by such a conventional cleaning vehicle, the cleaning device is set and cleaned from the front of the illumination lamp, but the illumination lamp is not necessarily cleaned only at the front, If the case and the side case are not cleaned, the case itself will deteriorate. However, it is difficult to clean the rear and side surfaces of the casing by cleaning using a conventional cleaning vehicle, and the rear and side surfaces of the casing must be manually operated at a high place, which takes time and effort.

  There are many emergency equipment such as fire hydrant equipment and water spray equipment for periodic inspection (including cleaning) in addition to the lighting fixtures that are permanent equipment in the tunnel, and inspection equipment is required for each equipment, which is expensive. . In addition, there is a problem that a large-scale inspection is required because it is necessary to control the lane each time because of the inspection performed for each facility.

It is an object of the present invention to provide a tunnel equipment inspection device that can efficiently clean a lighting fixture of a lighting fixture that is a permanent installation using a water source and equipment of a water spray facility that is an emergency installation. To do.

The present invention is a tunnel equipment inspection device,
Water spray equipment that sprays pressurized water from the water spray head into the tunnel in the event of a fire,
A plurality of lighting fixtures installed in the longitudinal direction of the tunnel along the tunnel wall;
A cleaning head arranged in the vicinity of the illumination lamp;
A switching valve device for switching the discharge destination of the pressurized water supplied to the water spray head from the water spray head to the cleaning head, and cleaning and cleaning the illumination lamp by watering from the cleaning head;
It is provided with.

Here, the water spraying equipment supplies pressurized water to the water spraying head by opening an automatic valve device installed in the fire prevention unit divided in the longitudinal direction of the tunnel, and sprays pressurized water into the tunnel.
The switching valve device switches the discharge destination of the pressurized water by the automatic valve device from the water spray head to the cleaning head, and cleans and cleans the lighting lamps in units of fire prevention compartments by watering from the cleaning head.

  The cleaning head is arranged so as to clean the front, side and back of the lighting fixture.

  The switching valve device is provided with a three-way switching valve on the secondary side of the automatic valve device for switching from supplying pressurized water to the connection pipe of the water spray head to supplying pressurized water to the cleaning head, and the automatic valve device regulates the pressure to a predetermined pressure. The pressurized water is supplied to the cleaning head and sprinkled.

  The switching valve device is provided with a three-way switching valve for switching from supply of pressurized water to the connection pipe of the water spray head to supply of pressurized water to the cleaning head on the primary side of the automatic valve device. Is supplied to the cleaning head to spray water.

  The three-way switching valve is operated by the remote opening control of the inspection control valve or the supply of the primary side pressurized water of the automatic valve device by the manual opening operation of the inspection discharge valve connected in parallel to the inspection control valve. Switch from head to cleaning head.

The total radiation amount of the water spray head and the cleaning head connected to the automatic valve was set to be approximately the same.

  According to the inspection device of the present invention, a cleaning head is arranged for an illumination lamp installed as a permanent facility in a tunnel, and is released to an automatic valve device of a water spray facility provided as one of tunnel emergency facilities. By providing a switching valve device that switches the water tip from the water spray head to the cleaning head, using the water source of the water spray equipment, it is possible to spray and wash the pressurized water from the cleaning head to the illuminating lamp. By combining the cleaning equipment for certain lighting fixtures with the water spraying facility, which is an emergency equipment, the equipment configuration for cleaning the lighting fixtures can be simplified to reduce costs, and traffic restrictions for cleaning can be reduced in a short time. I can do it.

In addition, it is possible to simultaneously perform inspection work including cleaning of lighting fixtures that are permanent equipment and water spray equipment that is emergency equipment. Regulations can be done in a short time.

Explanatory drawing which showed the installation state of the various tunnel equipment including the illumination lamp which carries out cleaning inspection by this invention Explanatory drawing which showed arrangement | positioning of the head for cleaning with respect to the illumination lamp installed in the tunnel wall surface of FIG. Explanatory drawing which showed embodiment of the automatic valve apparatus which switches a water discharge destination to a water spray head and a cleaning head on the secondary side Explanatory drawing which showed other embodiment of the automatic valve apparatus which switches a water discharge destination to a water spray head and a cleaning head on the primary side.

  FIG. 1 is an explanatory view showing an installation state of various tunnel facilities including an illumination lamp to be cleaned and inspected according to the present invention. In FIG. 1, a tunnel 12 is provided with a road 12 covered with a bowl-shaped tunnel wall surface 11, and in this example, the road 12 has one direction and two lanes.

  A supervisor passage 14 is provided along the tunnel wall 11 on the left side of the road 12, and a fire hydrant device 16 and an automatic valve device 18 are provided at the position of the tunnel wall 11 that can be operated from the supervisor passage 14.

  The fire hydrant device 16 is installed every 50 meters in the longitudinal direction of the tunnel. The automatic valve device 18 is a device for supplying pressurized fire-extinguishing water to the water spray head 20 taken out from the spray pipe 22 installed at the upper part of the tunnel wall surface 11, with 50 meters in the tunnel longitudinal direction as a water discharge section, An automatic valve device 18 is installed for each water discharge section.

  Further, on both sides of the tunnel wall 11 on the ceiling side, illumination lamps 24 are arranged at regular intervals along the tunnel longitudinal direction, and a cable wired on the upper side of each illumination lamp 24 is branched and connected. Has been supplying lighting power.

  Here, the automatic valve device 18 that sprays water from the fire hydrant device 16 and the water spray head 20 is an emergency facility for fire accidents in the tunnel and automobile accidents that cause this, and in addition to this, an alarm device is provided. Fire extinguishing equipment, ventilation equipment, evacuation guidance equipment, etc. are provided. On the other hand, the illumination lamp 24 is provided as a permanent facility that constantly illuminates the tunnel.

  In such a tunnel facility, according to the present invention, as a facility for cleaning the illumination lamp 24 which is a permanent installation at the time of inspection, the water for pressurized fire extinguishing is supplied from the automatic valve device 18 of the water spray facility to the illumination lamp 24. The cleaning pipe 30 that receives the switching supply is installed for each water discharge section of the water spray facility that is 50 meters, the head pipe is branched from the cleaning pipe 30, and the front cleaning head 26 is installed in front of the lighting lamp 24. At the same time, a rear cleaning head 28 is installed at the rear side of the lighting lamp 24.

  2 is an explanatory view showing the arrangement of the cleaning head with respect to the illumination lamp 24 installed on the tunnel wall surface of FIG. 1, with the front shown in FIG. 2 (A) and the plan shown in FIG. 2 (B). Yes.

  In FIG. 2, the illuminating lamp 24 includes a main body 24b and a cover 24a that can be opened and closed by a hinge. The cover 24a is provided with a window 24c. A fluorescent lamp or a halogen lamp is provided on the main body 24b side of the cover 24a. An illumination light source such as a lamp is provided.

  The lighting lamp 24 has four mounting angles 25 taken up and down. As shown in FIG. 2 (B), two mounting angles 25 are attached to the embedded bolts 32 welded to the reinforcing bars inside the tunnel wall surface 11. The lighting lamp 24 is supported at a position floating from the tunnel wall surface 11.

  For example, a cleaning pipe 30 drawn from the automatic valve device 18 side is disposed below the illumination lamp 24, and the head pipe 26 a is connected to the illumination lamp 24 using a T-shaped joint from the cleaning pipe 30. The front cleaning head 26 is installed at the front end of the head pipe 26a so that the front side of the cover 24a of the lighting lamp 24 can be cleaned and cleaned by spraying pressurized water from the front cleaning head 26. Yes.

  Further, the head pipe 28a is arranged on the left side of the lighting lamp 24 by the T-shaped joint of the cleaning pipe 30, and the head pipe 28a extends to the rear side of the lighting lamp 24 as is apparent from the plan view shown in FIG. The rear surface cleaning head 28 is provided laterally from there. By spraying pressurized fire-extinguishing water from the back surface cleaning head 28, the back surface and side surfaces of the illumination lamp 24 on the main body 24b side can be cleaned and cleaned.

  Here, with respect to the front cleaning head 26 and the rear cleaning head 28, when water for pressurized fire extinguishing is sprinkled, most of the sprinkled water does not go to the road side in the tunnel, so that most of the water goes to the lighting lamp 24. The watering direction is set appropriately.

  For this reason, the fire-fighting water is sprinkled by switching supply of pressurized fire-fighting water from the automatic valve device 18 with the front cleaning head 26 and the rear cleaning head 28 installed in the tunnel as shown in FIG. Even if the illumination lamp 24 is cleaned and cleaned, the sprinkled water does not go to the road 12 side, and most of the water hits the tunnel wall surface 11 and flows down, so that the traffic on the road 12 is not blocked. The illumination lamp 24 can be cleaned and cleaned in the state.

  FIG. 3 is an explanatory view showing an embodiment of an automatic valve device that switches a water discharge destination to a water spray head and a cleaning head. In FIG. 3, a fire fighting control unit 42 and an inspection control unit 43 are provided in a disaster prevention control panel 40 installed in a central monitoring room or the like, and an automatic system installed on a water spray head in a tunnel via a transmission unit 44. A control signal is supplied to the valve device 18 and various detection signals are received. The fire extinguishing control unit 42 and the inspection control unit 43 are functions realized by program control of a CPU provided in the disaster prevention control panel 40.

  The automatic valve device 18 includes an automatic valve 48 and a water control valve 50 provided on the secondary side of the automatic valve 48, and a primary side of the automatic valve 48 includes a water source pressurized by a pressure extinguishing and extinguishing equipment through a water supply pipe (not shown). Is supplied to the secondary side of the water control valve 50 via a three-way switching valve 90 functioning as a switching valve device of the present invention, for example, for each water discharge section installed in units of 50 meters in a tunnel. Piping connection to a plurality of installed water spray heads and piping connection to a cleaning head provided in an illumination lamp installed corresponding to each water discharge section in the same unit of 50 meters are performed.

  The automatic valve 48 is provided with a pressure adjusting mechanism 55 that operates as a control actuator. The pressure adjusting mechanism 55 includes a piston 56 in a cylinder, a first cylinder chamber 58 formed in the valve body 54, and a second cylinder chamber 60 incorporating a spring 62 outside. The second cylinder chamber 60 communicates with the secondary side of the automatic valve 48 through an internal passage in the rod of the piston 56.

  The automatic valve 48 is started and stopped by opening and closing the pilot valve 70 using a stop valve 66 provided on the opposite side branched from the primary side and a motorized valve remotely controlled from the disaster prevention control panel 40 provided following the orifice 28. Done in A manual start valve 72 is provided in parallel with the pilot valve 70. The secondary side of the pilot valve 70 is connected to the first cylinder chamber 58 of the automatic valve 48 via the pressure adjustment valve 52.

  The pressure adjustment valve 52 includes a primary pressure port P1, a cylinder port CL, a pilot port PL, and a secondary pressure port P2. The secondary side of the pilot valve 70 and the manual activation valve 72 is connected to the primary pressure port P1, and the pressurized water on the primary side of the automatic valve 48 is supplied by opening the pilot valve 70 or the manual activation valve 72. The cylinder port CL is connected to the first cylinder chamber 58 of the automatic valve 48. The pilot port PL and the secondary pressure port P2 are connected to the secondary side of the automatic valve 48.

  The pressure regulating valve 52 operates in a state where the pilot valve 70 or the manual start valve 72 is opened and receives the pressurized water on the primary side, supplies the pressurized water on the primary side to the first cylinder chamber 58, After opening and starting the valve body 54, the value of the secondary side pressure is adjusted so as to be kept at a specified value set by a built-in spring.

  The closing delay valve 53 provided for the pressure regulating valve 52 returns from the first cylinder chamber 58 to the secondary side of the automatic valve 48 when the pilot valve 70 or the manual activation valve 72 is closed to stop the automatic valve 48. By restricting the flow, the return of the piston 56 is delayed, and sudden closing by the valve body 54 is prevented.

  Next, a configuration for inspection in the automatic valve device 18 will be described. A test water discharge valve 78 is provided in the middle of the pipe drawn from the secondary side of the automatic valve 48 to the drain, and a pressure sensor 80 and a pressure switch 82 are provided on the primary side of the test water discharge valve 78. An automatic drain valve 76 is provided in parallel with the test water discharge valve 78.

  The test water discharge valve 78 is used to check the operation of the automatic valve device 18 without actually discharging water from the water spray head. For this reason, at the time of inspection by the test water discharge valve 78, the supply of pressurized fire extinguishing water to the water spray head is stopped by first closing the water control valve 50. In this state, the test water discharge valve 78 is opened, and the secondary side of the automatic valve 48 is communicated with the drain side.

  Subsequently, when the pilot valve 70 is opened by the signal from the inspection control unit 43 provided in the disaster prevention control panel 40 or the automatic start valve 72 is opened, the pressure adjustment valve 52 is operated, and the pressure adjustment mechanism 55 performs the primary operation. The pressurized water on the side is adjusted to a predetermined pressure determined by the spring, supplied to the secondary side, and flows from the secondary side through the test water discharge valve 78 to the drain. Thereby, the remote test by actual water discharge can be performed without discharging water from the water spray head.

  When the actual water discharge test is completed, when the test water discharge valve 78 is closed, the pressure on the secondary side increases to the same pressure as the primary side, and the valve body 54 of the pressure adjustment mechanism 55 is closed by the operation of the pressure adjustment valve 52. It will be in the closed state which separated the primary side and the secondary side.

  Here, the automatic drain valve 76 provided in parallel with the test water discharge valve 78 is opened in a state where water pressure is not applied to the secondary side of the automatic valve 48, and is automatically closed when water pressure is applied. For this reason, even if there is water leakage in the automatic valve 48, the water leakage flows to the drain side through the automatic drain valve 76, and the water leaks from the water spray head through the water control valve 50 due to the water leakage of the automatic valve 48. To prevent.

  Furthermore, in this embodiment, the water discharge destination of the water for fire extinguishing supplied to the water spray head on the secondary side of the water control valve 50 is switched to the cleaning head, and the lighting lamp is washed by watering from the cleaning head. A three-way switching valve 90 is provided as a switching valve device for cleaning.

  The three-way switching valve 90 has a first switching port 90b and a second switching port 90c that can be switched with respect to the primary port 90a, and a pipe for a water spray head is connected to the first switching port 90b. A pipe for the cleaning head is connected to the 2 switching port 90c.

  Further, the three-way switching valve 90 receives the supply of primary pressurized water by the opening operation of the inspection control valve 84, and the primary port 90a from the first switching position that communicates the primary port 90a in the normal state to the first switching port 90b. Is a remote control type three-way switching valve that performs an operation of switching to a second switching position communicating with the second switching port 90c.

  The switching position of the three-way switching valve 90 is detected by a limit switch 92 provided in the switching actuator, and the detection signal of the switching position is sent to the disaster prevention receiving board 40 so that the inspection control unit 43 performs switching display. In parallel with the inspection control valve 84, an inspection water discharge valve 86 is provided for manually performing inspection water discharge on site.

  The operation of cleaning and cleaning the illumination lamp by discharging water from the cleaning head by the automatic device 18 of FIG. 3 is as follows. First, an opening operation is performed by remote control of the inspection control valve 84 or manual operation of the inspection water discharge valve 86 to supply the primary side pressurized water to the three-way switching valve 90 and clean the three-way switching valve 90 from the water discharge to the water spray head. Switch to water discharge to the head.

  When the switching of the three-way switching valve 90 is completed, when the pilot valve 70 or the manual start valve 72 is opened and the primary pressurized water is supplied to the pressure adjustment valve 52 with the water control valve 50 open, The pressure adjustment operation is performed in cooperation with the pressure adjustment mechanism 55 of the valve 48, and the primary side pressurized water is supplied to the secondary side in a state of being regulated through the valve body 54 opened by the pressure adjustment, and is in an open state. The pressure-extinguishing water adjusted to the cleaning head is supplied to the cleaning head 50 through the water control valve 50 and the three-way switching valve 90 that is switched from the primary port 90a to the second switching port 90c. .

  As a result, as shown in FIG. 1 and FIG. 2, the plurality of lighting fixtures 24 installed in the water discharge section in units of 50 meters in the tunnel where the currently operating automatic valve device 18 is installed are provided. The pressurized fire-extinguishing water is discharged from the front cleaning head 26 and the rear cleaning head 28, and the cleaning and cleaning can be reliably performed by discharging the pressurized fire-extinguishing water to the front and rear surfaces of the lighting lamp 24.

  Such cleaning with the cleaning head of the illumination lamp 24 basically performs inspection cleaning by regulating one side lane of the road 12 in the tunnel shown in FIG. 1, but the cleaning head according to the present invention. In this case, as shown in FIG. 2, the water for pressurized fire extinguishing from the front cleaning head 26 and the rear cleaning head 28 is discharged toward the illumination lamp 24 installed on the tunnel wall surface side. Therefore, even when the vehicle is traveling, the illumination lamp 24 can be cleaned and cleaned by watering from the cleaning head without affecting the traveling of the vehicle. is there.

  In addition, it is expected that a small amount of water sprayed by washing and cleaning will be scattered on the road side. During inspection and cleaning, display panels such as tunnel entrances are used for cleaning work. By displaying that the wiper is used and the vehicle traveling in the tunnel operates the wiper, the vehicle can travel safely without any problems even if it receives spray accompanying the cleaning of the illumination lamp.

  FIG. 4 is an explanatory view showing another embodiment of the automatic valve device for switching the water discharge destination to the water spray head and the cleaning head on the primary side. In FIG. 4, the configuration of the disaster prevention control panel 40 and the automatic valve facility 46 as the water spray facility is the same as that of the embodiment of FIG. 3, but as a switching valve device for switching the water discharge destination with respect to the cleaning head, FIG. In this embodiment, the three-way switching valve 90 is provided on the primary side for supplying pressurized fire-fighting water to the automatic valve 48.

  That is, a three-way switching valve 90 is provided in the middle of the primary side pipe that supplies pressurized water to the automatic valve 48. The three-way switching valve 90 supplies pressurized water from the primary water supply pipe to the primary port 90a, connects the first switching port 90b to the primary side of the automatic valve 48, and connects the second switching port 90c to the cleaning head. Connected to.

  Further, the primary side pressurized water for the three-way switching valve 90 is supplied to the inspection control valve 84 and the inspection water discharge valve 86 for switching the three-way switching valve 90, and the inspection control valve 84 or the inspection water discharge valve 86 is supplied. Is opened to supply the primary side pressurized water to the three-way switching valve 90, and the fire extinguishing head is released from the first switching port 90b serving as a destination of the pressurized water to the water spray head via the automatic valve 48 and the water control valve 50. Switching to the second switching port 90c as the water front is performed.

  When the three-way switching valve 90 is provided on the primary side of the automatic valve 48 as described above, the pressurized water for the cleaning head is regulated by the pressure adjustment mechanism 55 of the automatic valve 48 as in the embodiment of FIG. Not the pressurized water but the primary side pressurized water is directly supplied to the cleaning head.

  In the above-described embodiment, cleaning and cleaning of lighting lamps that are permanent facilities are performed using pressurized water from water spray facilities that are emergency facilities, but as permanent facilities that are cleaned with pressurized water from water spray facilities. Is not limited to the illuminating lamp device, and can be similarly applied to cleaning and cleaning of other appropriate permanent facilities.

  Further, the automatic valve device 18 provided in the water spray facility is not limited to the embodiment shown in FIGS. 3 and 4, and the appropriate automatic valve device has a secondary or primary side from the water spray head to the cleaning head. It can respond similarly by providing the three-way switching valve which switches a water discharge destination.

  In the above embodiment, the three-way switching valve 90 is provided as a switching valve device for switching the water discharge destination from the water spraying head to the cleaning head. However, in addition to the three-way switching valve, an appropriate switching valve or combination of switching valves is provided. Thus, the water discharge destination from the water spray head to the cleaning head may be switched. The three-way switching valve 90 of the above embodiment is configured to switch by water pressure by supplying pressurized water. However, the check control valve 84 and the check water discharge valve 86 are eliminated, and the three-way switch valve 90 is switched to a motorized valve and switched remotely. Anyway. Alternatively, the three-way switching valve 90 may be switched to a manual switching valve having a handle so that switching can be performed.

  In addition, the number of heads connected should be connected so that the total amount of radiation emitted from a plurality of water spray heads connected to one automatic valve device and the total amount of radiation of a plurality of cleaning heads are substantially the same. When checking the operation of the automatic valve device used as a water spraying device, such as checking the amount of radiation, it does not radiate from the water spraying head, but radiates from the cleaning head that faces the tunnel wall or the side that is not in the road direction. By performing the inspection, it is possible to check the operation of the automatic valve device while suppressing the amount of water sprayed on the road side, and to speed up the recovery work after the inspection.

  In addition, a plate-like or box-like collection member for collecting the water radiated from the cleaning head is provided below or around the illumination lamp 24, and the water from the cleaning head is collected to the drain pipe or tunnel wall side. By providing a collecting member that drains to the outside by flowing it, watering to the road side can be further suppressed, and restoration work after the end of the inspection may be performed quickly.

Further, the present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Tunnel 11: Tunnel wall surface 12: Road 14: Monitor passage 16: Fire hydrant device 18, 46: Automatic valve device 20: Water spray head 22: Water spray pipe 24: Lighting lamp 24a: Cover 24b: Main body 24c: Window 25 : Mounting angle 26: Front cleaning heads 26a, 28a: Head piping 28: Back cleaning head 30: Cleaning piping 32: Embedded bolt 40: Disaster prevention control panel 42: Fire extinguishing control unit 43: Inspection control unit 44: Transmission unit 48: Automatic valve 50: Water control valve 52: Pressure adjustment valve 55: Pressure adjustment mechanism 66: Stop valve 68: Orifice 70: Pilot valve 72: Manual start valve 76: Automatic drain valve 78: Test water discharge valve 84: Control for inspection Valve 86: Check water discharge valve 90: Three-way switching valve

Claims (7)

Water spray equipment that sprays pressurized water from the water spray head into the tunnel in the event of a fire,
A plurality of lighting fixtures installed in the longitudinal direction of the tunnel along the tunnel wall;
A cleaning head disposed in the vicinity of the illumination lamp;
A switching valve device for switching the discharge destination of pressurized water supplied to the water spray head from the water spray head to the cleaning head, and cleaning and cleaning the illumination lamp by watering from the cleaning head;
A facility inspection device for tunnels characterized by comprising:
In the tunnel equipment inspection device according to claim 1,
The water spray facility is to spray pressurized water into the tunnel by supplying pressurized water to the water spray head by opening an automatic valve device installed in a fire prevention unit divided in the tunnel longitudinal direction,
The switching valve device switches the discharge destination of the pressurized water by the automatic valve device from the water spray head to the cleaning head, and cleans and cleans the lighting lamp in units of the fire prevention compartment by watering from the cleaning head. Equipment inspection equipment for tunnels.
3. The tunnel equipment inspection device according to claim 1 or 2, wherein the cleaning head is disposed so as to clean the front, side and back of the illumination lamp.
3. The tunnel equipment inspection device according to claim 2, wherein the switching valve device is supplied to the secondary side of the automatic valve device from pressurized water supplied to a connection pipe of the water spray head to pressurized water supplied to the cleaning head. A tunnel facility inspection device characterized in that a three-way switching valve is provided for switching to the above, and the pressurized water adjusted to a predetermined pressure by the automatic valve device is supplied to the cleaning head to spray water.
3. The tunnel equipment inspection device according to claim 2, wherein the switching valve device supplies pressure water to the cleaning head from supply of pressurized water to a connection pipe of the water spray head on a primary side of the automatic valve device. A facility inspection device for tunnels, comprising a three-way switching valve for switching to water and supplying water for primary side pressurization of the automatic valve device to the cleaning head.
6. The tunnel equipment inspection device according to claim 4 or 5, wherein the three-way switching valve is configured by remote opening control of an inspection control valve or manual opening operation of an inspection water discharge valve connected in parallel to the inspection control valve. A tunnel facility inspection device, which operates by supplying primary-side pressurized water of an automatic valve device and switches a water discharge destination from the water spray head to the cleaning head.
  3. The tunnel equipment inspection device according to claim 2, wherein the total radiation amount of the water spray head and the cleaning head connected to the automatic valve is substantially the same. apparatus.

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