JPH04134554U - Manhole device with built-in detection/alarm system - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the labor involved in manhole inspection work by making it possible to check gas leakage, water intrusion, etc. inside a manhole without opening and closing the manhole cover. [Structure] Electrical energy generated by a solar cell 26 integrally assembled on the surface side of the outer cover 22 of the manhole cover 20 is stored in storage battery means in the control panel 30 fixed to the inner cover 24 of the manhole cover 20. On the other hand, under the control of the control means in the control panel 30 based on the detection information of the gas sensor 36 and water level sensor 40 provided in the manhole, the light emitting diode 27 attached to the surface side of the outer cover 22 is connected to the storage battery means. , 28.

Description

[Detailed explanation of the idea]

0001

【Technical field】

This invention uses an alarm display mounted on the surface side of the manhole cover to alert the manhole. A camera with a built-in detection and alarm system that allows you to check the gas leak status and water level inside the building. related to hole-in-hole equipment.

0002

[Background technology]

Traditionally, in manholes installed for inspection of gas pipes, workers We went around twice every day to check for gas leaks in manholes, and to check for flooding and emergencies. We are checking the water level to see if the emergency shutoff valve is covered with water. and, Generally, such manholes have a double-layered cover consisting of an outer cover and an inner cover. First, remove the outer cover and insert the gas sensor through the inspection hole provided in the inner cover. After checking the gas leakage situation, I removed the inner lid and checked the water intrusion situation and water level. It is. However, this inspection work is very labor-intensive and requires a lot of effort. This has led to a situation where it is necessary to hire a specialist inspection company.

0003

[Problem to be solved]

Against this background, this invention was developed, and the problems to be solved are as follows. Check the situation of gas leakage and flooding inside the manhole by opening the manhole cover. This reduces the labor involved in manhole inspections by allowing inspections to be made without having to remove the manholes. It's about trying.

0004

[Solution]

In order to solve the above-mentioned problems, the present invention has a method for opening manholes. Each manhole cover is integrally assembled on the surface side of the manhole cover. Based on an alarm display body for displaying; and a storage battery means for storing electrical energy generated by the solar cell; ; installed in each manhole to control the specified gas composition in the atmosphere inside the manhole; a gas sensor that detects the minute and a water level sensor that detects the water level in the manhole; Based on the detection information of the gas sensor and water level sensor, control means for controlling the supply of electrical energy to the alarm display body; Under the control of the stage, according to the detection information of the gas sensor and water level sensor. The detection/alarm system is characterized in that the alarm indicator is activated by The gist is a manhole device with a built-in stem.

[0005]

[Action/effect]

In other words, in such a manhole device, the Electrical energy automatically generated by solar cells is stored in storage battery means. On the other hand, the electric energy is based on detection information of a gas sensor and a water level sensor, Under the control of the control means, the alarm is supplied to the alarm display body integrally assembled on the lid. This is to activate the information display. Therefore, the condition inside the manhole is You can easily know the current status by checking the alarm display on the lid surface without opening the lid. For example, once out of the inspection work that is carried out about twice a year, By checking the alarm display, manhole inspection work can be greatly reduced. This makes it possible to reduce the width.

[0006]

【Example】

In order to clarify the present invention more specifically, detection and alarm according to the present invention are described below. An example of a manhole device with a built-in system will be explained in detail based on drawings. I decided to.

[0007] First, Figure 1 shows a gas pipe inspection using a manhole device structured according to the present invention. A schematic diagram of the utility manhole is shown. There, 10 is the wall of the manhole The gas pipe 12 is installed through the lower end of the foundation concrete. On the other hand, a receiving frame 18 is fixedly installed at the upper end facing toward the paved surface 16. Note that the gas pipe 12 is provided with an emergency shutoff valve 14 located inside the manhole. I'm being kicked. Then, for each of the two stepped surfaces formed on the receiving frame 18, Then, the outer cover 22 and the inner cover 24 are fitted, and the manhole cover 20 is used as the manhole cover 20. It is designed to cover the opening.

[0008] By the way, as shown enlarged in FIG. 2, the outer cover 22 has a surface side. A solar cell 26 and an alarm table are attached to each of the three mounting holes 25 formed in the Gas leak alarm light emitting diode 27 and water level alarm light emitting diode 2 as indicators 8 are integrally assembled. And those solar cells 26 and light emitting diode A protective transparent acrylic plate 29 is fitted on the front side of the ords 27 and 28. In addition, resin is filled between the mounting hole 25 and the mounting hole 25 to prevent rainwater from entering. Ru. In addition, the solar cell 26 and the light emitting diodes 27 and 28 are provided with an outer cover 22. A curl cord 32 for wiring is connected from the back side.

[0009] On the other hand, a control panel 30 including a storage battery means and a control means is fixed to the upper surface of the inner lid 24. The solar cell 26 and the light emitting diode are connected to the control panel 30. 27 and 28 are connected by the curl cord 32. In addition, 34 is a removable connector, and in this embodiment, such a removable connector is used. By using the connector 34 and the curl cord 32, the wiring can be connected to the outer cover 22 or This is done so that it does not get in the way of opening and closing the inner lid 24.

0010 Further, on the lower surface of the inner lid 24, there is provided a cover for removing the inside of the gas pipe 12 that has leaked into the manhole. A gas sensor 36 is mounted and fixed to detect the gas component to be sent. The sensor 36 passes through a wiring rubber bush 38 located in the center of the inner lid 24. Therefore, it is connected to the control panel 30 by a curl cord 32. Also, A water level sensor 4 is installed on the side wall of the manhole to detect the water level inside the manhole. 0 is mounted and fixed, and the water level sensor 40 is also connected through the rubber bush 38 for wiring. Therefore, it is connected to the control panel 30 by a curl cord 32.

[0011] In a manhole device with such a configuration, the wiring diagram in Figure 3 clearly shows the The electrical energy generated by the solar cells 26 during the day is transferred to the control panel. 30 and stored in the storage battery means 42. Electrical energy is supplied to the light emitting diodes under the control of the control means 44 in the control panel 30. LEDs 27 and 28 are supplied with light, causing the light emitting diodes 27 and 28 to emit light. This means that Moreover, the control means 44 includes a gas sensor 36, The detection information of the water level sensor 40 is inputted, and the control Control in the control means 44 is performed based on the detected information. It is.

0012 In other words, when the gas sensor 36 detects a gas leak in the manhole In this case, the control means 44 controls the light emitting diode 2 for gas leak alarm from the storage battery means 42. The light emitting diode 27 is controlled so that electrical energy is supplied to the light emitting diode 27, and the light emitting diode 27 emits light. In addition, the water level sensor 40 detects the inside of the manhole. If it is detected that the water level has risen above the predetermined water level, the control At stage 44, electrical energy is transferred from storage battery means 42 to light emitting diode 28 for water level alarm. is controlled so that the light emitting diode 28 emits light. It becomes.

[0013] In this way, such a manhole device avoids wasteful consumption of stored electrical energy. Since it is possible to display a warning according to the situation inside the manhole while avoiding costs, Just by checking the light emitting diodes 27 and 28 on the surface of the outer cover 22, the outer cover 22 and the inner cover To know the gas leakage situation and flood situation in the manhole without opening or closing the manhole. This makes it possible to significantly reduce manhole inspection work.

[0014] Above, one embodiment of the present invention has been described in detail. It goes without saying that we are not subject to any restrictions whatsoever by this statement. It's ro. In addition to the above embodiments, the present invention also includes other embodiments that do not depart from the spirit of the invention. To the extent possible, various changes, modifications, improvements, etc. may be made based on the knowledge of those skilled in the art. It should be understood that

[0015] For example, in the embodiment described above, light emitting diodes 27 and 28 are used as alarm indicators. However, other light emitters such as light bulbs and various meters can be used. Also, storage battery means 42, control means 44, gas sensor 36, water level sensor 40, etc. The installation position can be changed as appropriate.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram schematically showing the structure of a gas inspection manhole to which a manhole device according to the present invention is applied.

FIG. 2 is an enlarged explanatory diagram showing a part of the manhole device in FIG. 1 in an enlarged manner.

FIG. 3 is an explanatory diagram showing wiring of the manhole device in FIG. 1;

[Explanation of symbols]

10 Foundation concrete 12 Gas pipe 18 Receiving frame 20 Manhole cover 22 Outer cover 24 Inner cover 26 Solar cell 27, 28 Light emitting diode 30 Control panel 32 Curl cord 36 Gas sensor 40 Water level sensor 42 Storage battery means 44 Control means

Claims (1)

[Scope of utility model registration request] 1. A solar cell that generates electrical energy based on sunlight and an alarm indicator that indicates an abnormality in the manhole, each of which is integrally assembled on the surface side of a manhole cover that covers the opening of the manhole; a storage battery means for storing electrical energy generated by a solar cell; a gas sensor and a water level sensor provided in each manhole to detect a predetermined gas component in the atmosphere in the manhole; and a water level sensor to detect the water level in the manhole; a control means for controlling the supply of electrical energy from the storage battery means to the alarm display body based on the detection information of the sensor and the water level sensor, and under the control of the control means, the detection of the gas sensor and the water level sensor; A manhole device with a built-in detection/warning system, characterized in that the warning indicator is activated in accordance with information.