JPH10185649A - Wireless meter inspecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wireless meter inspecting device in which a radio unit can be mounted on the reverse side of a lid body, an antenna can be set in a position closest to the ground surface, the labor of drilling a screw hole on the lid body can be saved, and the maintenance inspection and repairing can be easily performed. SOLUTION: In a wireless meter inspecting device having a waterline meter box 1 buried in the ground with an opening part 2 being set toward the ground surface; a metallic lid body 5 for blocking the opening part 2 of the waterline meter box 1; waterline meter 7 set within the waterline meter box 1 and connected to a water pipe; and a radio unit 21 having an antenna 22 set within the waterline meter box 1 to transmit the integrated value of the waterline meter 7 to a meter inspection center or the like, a permanent magnet 25 is provided on the mounting surface of the radio unit 21, and the radio unit 21 is magnetically attracted to the reverse side of the lid body 5 by the permanent magnet 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a wireless meter reading device having a wireless unit having an antenna for transmitting an integrated value of a water meter to a meter reading center or the like.

[0002]

2. Description of the Related Art In a wireless meter reading device for wirelessly transmitting an integrated value of a water meter to a meter reading center or the like, a wireless unit on the water meter side is housed in a water meter box together with the water meter. That is, as shown in FIG. 3, the water meter box 1 is buried in the underground 4 with its opening 2 facing the ground surface 3. The opening 2 of the water meter box 1 is closed by a lid 5, and the lid 5 is substantially flush with the ground surface.

The water meter box 1 is generally made of a casting, and the lid 5 is made of steel or a synthetic resin such as FRP. A water meter 7 connected to a water pipe 6 is installed inside the water meter box 1, and a cable 10 for transmitting an integrated value to a wireless unit 9 is connected to an integrating instruction section 8 of the water meter 7. . Further, the wireless unit 9 has an antenna 11, and transmits an integrated value from the wireless unit 9 to a meter reading center or the like.

The wireless unit 9 is provided with a mounting piece 12. The mounting piece 12 is screwed into a screw hole provided on the back surface of the lid 5 with a bolt 13 so that the wireless unit 9 is attached to the lid 5. It is fixed.

[0005]

However, the lid 5
If the material is made of synthetic resin such as FRP, screw holes can be drilled relatively easily, but if steel is used, it is extremely difficult to drill screw holes, but it is excellent in strength. Often made of steel. Also, it is difficult to machine mounting holes on the lid of the existing water meter box on site. For this reason, the only option is to prepare a water meter box with a wireless unit attached to the lid in advance, or to attach a new wireless unit.

The antenna 11 of the wireless unit 9 is desirably attached to the lid 5 closest to the ground surface 3 because the transmission distance of radio waves is long. Although it is installed in an easy-to-install place such as the inner wall of No. 1, it is far from the ground surface 3 and the transmission distance of radio waves is short.

The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to easily attach a wireless unit to a lid closest to the ground surface and to extend the transmission distance of radio waves. It is an object of the present invention to provide a wireless meter reading device that can perform the measurement.

[0008]

In order to achieve the above object, the present invention provides a water meter box buried underground with an opening facing the ground, and a water meter box of the water meter box. A metal lid closing the opening, a water meter installed in the water meter box and connected to a water pipe, and an integrated value of the water meter installed inside the water meter box to a meter reading center or the like. In a wireless meter reading device including a wireless unit having an antenna for transmitting, a permanent magnet is provided on a mounting surface of the wireless unit, and the wireless unit is magnetically attracted to a back surface of the lid by the permanent magnet. .

The water meter box buried in the ground with the opening facing the ground, a resin lid closing the opening of the water meter box, and the water meter box installed in the water meter box. A water meter connected to a water pipe, and a wireless metering device including a wireless unit installed inside the water meter box and having an antenna for transmitting an integrated value of the water meter to a metering center or the like,
A permanent magnet is provided on a side surface of the wireless unit, and the wireless unit is magnetically attracted to an inner wall of the water meter box by the permanent magnet.

According to the first aspect, since the cover is made of metal, the wireless unit can be mounted on the back surface of the cover, and the antenna can be installed at a position closest to the ground. According to the second aspect, the wireless unit can be installed at an arbitrary position on the inner wall of the water meter box.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment,
The same components as those of the related art shown in FIG. The wireless unit 21 installed inside the water meter box 1 has an antenna 22 for transmitting an integrated value of the water meter 7 to a meter reading center or the like. The antenna 22 is provided above a case body 23 constituting the wireless unit 21. Is provided.

Further, a plurality of permanent magnets 25 are buried in the mounting surface 24 on the upper surface of the case body 23,
The wireless unit 21 is magnetically attracted to the back surface of the metal lid 5 by the permanent magnet 25.

Therefore, the wireless unit 21 can be attached to an arbitrary position on the back surface of the lid 5, so that it is not necessary to process a screw hole in the steel lid 5 as in the related art, and the wireless unit 21 can be mounted. By opening the lid 5 during maintenance and inspection, the wireless unit 21 can be easily removed from the lid 5.

When the lid 5 is made of a resin such as FRP, the wireless unit 21 cannot be magnetically attracted to the lid 5 directly. Alternatively, the wireless unit 21 can be magnetically attracted to an arbitrary position on the inner wall of the water meter box 1.

In the first embodiment, the permanent magnet 25 is embedded in the mounting surface 24 on the upper surface of the case main body 23 constituting the wireless unit 21, but the second embodiment shown in FIG.
By embedding the permanent magnet 25 on the side surface of the case main body 23 as in the embodiment, the wireless unit 21 is placed horizontally on the inner wall of the water meter box 1 and the antenna 2
2 can be installed near the back surface of the lid 5 near the ground surface 3.

[0016]

As described above, according to the first aspect, by providing the wireless unit with the permanent magnet, when the cover is made of metal, the wireless unit can be attached to the back surface of the cover. The antenna can be located closest to the ground. In addition, since there is no need to process a screw hole in the lid, and since the wireless unit can be attached to and detached from the lid, it is possible to easily perform maintenance, inspection, repair, and the like.

According to the second aspect, by providing the permanent magnet on the side surface of the wireless unit, the wireless unit can be installed at an arbitrary position on the inner wall of the water meter box.
The same effect as the first aspect is obtained.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing a wireless meter reading device according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional side view showing a wireless meter reading device according to a second embodiment of the present invention.

FIG. 3 is a vertical side view showing a conventional wireless meter reading device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Water meter box 2 ... Opening 5 ... Lid 7 ... Water meter 21 ... Wireless box 22 ... Antenna 25 ... Permanent magnet

Claims (2)

[Claims] 1. A water meter box buried in the ground with an opening facing the ground, a metal lid closing the opening of the water meter box, and a water pipe installed in the water meter box. A water meter connected to the water meter box, and a wireless unit having an antenna installed inside the water meter box and transmitting an integrated value of the water meter to a meter reading center or the like. A wireless magnet meter, wherein the wireless unit is magnetically attracted to the back surface of the lid by the permanent magnet. 2. A water meter box buried in the ground with the opening facing the ground, a lid closing the opening of the water meter box, and a water pipe installed in the water meter box and connected to a water pipe. A water meter, and a wireless metering device that is installed inside the water meter box and has a wireless unit having an antenna that transmits the integrated value of the water meter to a metering center or the like, wherein a permanent magnet is provided on a side surface of the wireless unit. A wireless metering device, wherein the wireless unit is magnetically attracted to an inner wall of the water meter box by the permanent magnet.