JPH09243430A - Gas meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas meter built into a terminal transmission device wherein an inherent height of the gas meter can be maintained while replacement of the terminal transmission device is facilitated. SOLUTION: A case body 5 is attached to a front face of a gas flow rate detection part 1, wherein the case body 5 comprises a front chamber 6 and a rear chamber 7 partitioned by a partition 8. A storage and calculation part 11 for various information is provided in the front chamber 6, a terminal transmission device 10 for transmitting data via a telephone line is provided in the rear chamber 7, and an auxiliary cover for constituting the case body 5 is removably attached to cover a lower part of the storage and calculation part 11 and a lower opening 5a of the case body 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas meter incorporating a terminal transmission / transmission device for transmitting data via a telephone line.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show an example of a conventional gas meter with a built-in terminal transmission / transmission device (actual Kaihei 6-7).
2027).

The gas flow rate detection unit 1 has an inlet 2a at the upper end.
The gas that flows in further and flows out through the outlet 2b is measured in the measuring chamber, and is provided at the rear of the gas meter A.
Above the gas flow rate detection unit 1, a mechanism unit 3 for converting information based on the flow rate measurement of the gas flow rate detection unit 1 into rotation capable of displaying the flow rate is provided.

The terminal device 4 provided at the front of the mechanism unit 3 is
A flow rate display unit 9 is provided on the front surface, and a storage calculation unit that stores and calculates the measured flow rate and various necessary information is provided inside. The lower part of the terminal device 4, which is the gas flow rate detection unit 1
At the front of the terminal is provided a terminal originating transmission device (NCU) 10 for transmitting data via a telephone line.

A cover 3 is provided on the front surface of the terminal transmission device 10.
5 is provided, and the bottom plate 36 is fixed to the lower end surface with screws 37.

[0006]

In the above-described conventional gas meter A, since the terminal transmission / transmission device 10 and the storage operation unit in the terminal unit 4 are arranged in series vertically, the overall height is the same as the gas meter originally has. There is a problem in that the terminal transmission transmitter 10 is higher than the terminal H by the amount of the protrusion h to the lower side, and the compatibility in mounting the gas meter deteriorates.

When the terminal transmission / transmission device 10 is to be replaced in case of failure, the cover 3 of the terminal transmission / transmission device 10 is replaced.
After removing the bottom plate 36, which is separate from 5, by removing the screw 37 from the lower side, it takes time and labor to replace the terminal transmission device 10, and there is a problem that the workability of the replacement is poor.

The present invention has been made in view of the above points, and is a gas meter with a built-in terminal transmission / transmission device, which can maintain the original height of the gas meter and facilitate the replacement work of the terminal transmission / transmission device. The purpose of the present invention is to provide a gas meter.

[0009]

In order to achieve the above object, the invention according to claim 1 is provided with a mechanism section above the gas flow rate detection section and a flow rate display section in front of this mechanism section. A gas meter having a built-in terminal transmission / transmission device, wherein a case body having two chambers separated front and back is attached to a lower portion of a flow rate display section on the front surface of the gas flow rate detection section, Is attached to one chamber and a storage operation unit for processing flow rate information is attached to the other chamber, and a terminal block is provided below the storage operation unit.

Therefore, in the invention according to claim 1, the terminal transmission / transmission device and the storage / calculation unit are arranged in parallel in front of the gas flow rate detection unit, and the vertical height is large due to the built-in terminal transmission / transmission device. And the original height of the gas meter can be maintained.

The invention according to claim 2 is the gas meter according to claim 1, characterized in that the circuit board of the terminal transmission device is screwed from the front of the case body via a screw. To do.

Therefore, according to the second aspect of the present invention, the terminal transmission / transmission device can be easily removed from the case body by loosening the screw from the front of the case body, and the replacement work of the terminal transmission / transmission device is facilitated. You can do it.

The invention according to claim 3 is the gas meter according to claim 1 or 2, wherein the case body is attached to a base attached to the gas flow rate detecting portion and to a front portion of the base. A partition plate for partitioning the two chambers, a cover body attached to the front part of the partition plate, and an auxiliary detachably attached to the lower part of the cover body so as to cover the terminal block and the lower opening of the case body. And a cover.

For this reason, in the invention according to claim 3, the case body is formed with two chambers, the front and the rear, which are partitioned by the partition plate, and the terminal transmission device and the storage operation unit can be accommodated in the two chambers, and the auxiliary device is also provided. By removing the cover, connection work to the terminal block is facilitated, and the lower opening of the case body is opened, so that the terminal transmission / transmission device can be easily pulled out from below.

Further, the invention according to claim 4 is the gas meter according to any one of claims 1 to 3, wherein the cover main body is a main body part covering the storage operation part, and an upper part from the main body part. And an edge portion which extends to abut on the front portion of the flow rate display portion.

Therefore, in the invention according to the fourth aspect, the storage operation unit and the flow rate display unit can be covered with one cover body, and the number of parts can be reduced and the assembling work can be simplified.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. 4 and 5 having the same members and the same functions are denoted by the same reference numerals.

1 (a) and 1 (b) are side views conceptually showing a gas meter of the present invention.
Is for measuring the gas flowing in from the inlet 2a at the upper end and flowing out from the outlet 2b in the measuring chamber, and is provided at the lower rear part of the gas meter A. A case body 5 is provided on the front surface of the gas flow rate detection unit 1, and the case body 5 has a partition plate 8
A front chamber 6 and a rear chamber 7 which are partitioned by and separated into front and rear are formed. In this rear room 7, a terminal transmission / transmission device 10 for transmitting data via a telephone line is provided.

On the upper part of the gas flow rate detection unit 1, there is provided a mechanism unit 3 for converting information based on the flow rate measurement of the gas flow rate detection unit 1 into rotation capable of displaying the flow rate.

A flow rate display section 9 is provided at the front of the mechanism section 3, and a storage / calculation section 11 for storing various information provided in the conventional terminal device 4 is separated from the terminal device and is provided in the front chamber 6 of the case body 5. It is provided inside. The storage / calculation unit 11 generally corresponds to a microcomputer portion of a microcomputer meter.

At the bottom of the case body 5, the gas flow rate detecting unit 1 is provided.
An auxiliary cover 12 is detachably attached to cover the front part and the lower opening 5a of the case body 5 and to cover the terminal transmission / transmission device 10 and the terminal block 22 below the storage / calculation unit 11. By removing the auxiliary cover 12, the terminal block 2
It is possible to easily replace the terminal transmission / transmission device 10 by removing it from the lower opening 5a of the case body 5, as shown in FIG. 1 (b).

Hereinafter, the present invention will be described more specifically based on the embodiments shown in FIGS. 2 and 3.

A mechanism section 3 is provided above the gas flow rate detection section 1, a gas inlet 2a and a gas outlet 2b are provided above the mechanism section 3, and a flow rate display section 9 is provided in front of the mechanism section 3.
Is provided. A case body 5 is provided in front of the gas flow rate detection unit 1 and the flow rate display unit 9.

The case body 5 includes a base 13 attached to the front portion of the gas flow rate detecting portion 1, a partition plate 8 attached to the front portion of the base 13, and a substantially middle portion of the front portion of the partition plate 8. To a front portion of the flow rate display unit 9 and an auxiliary cover 12 provided at a lower portion of the cover body 14, the partition chamber 8 has a front chamber 6 and a rear chamber. Rear chambers 7 are formed in each of them.

An engaging protrusion 15 is formed on the upper end of the base 13, and a bent portion 16 is formed on the lower end. A tip 17 of the bent portion 16 is formed on substantially the same plane as the bottom surface of the gas flow rate detecting portion 1. Has been done. The engaging protrusion 18 formed at the tip of the upper side 8 a of the partition plate 8 is engaged with the engaging protrusion 15 of the base 13 via the packing 19.

The upper end of the circuit board 20 is sandwiched between the engaging projection 15 of the base 13 and the upper side portion 8a of the partition plate 8, and the circuit components of the terminal transmission device 10 are mounted on the circuit board 20. . As a result, the terminal transmission device 10 is installed in the rear room 7
It is stored in. The lower end of the circuit board 20 has a spacer 2
It is fixed to the base 13 with screws 30 through 1. The screw 30 is rotated by inserting a driver or the like into the partition plate 8 through the cutout portion 8b at the lower end.

At the front part of the partition plate 8, a storage / calculation part 11 composed of a microcomputer part of a microcomputer meter is attached to the upper part, whereby the storage / calculation part 11 is housed in the front chamber 6.

A terminal block 22 is attached to the lower portion of the storage / calculation unit 11. The terminal block 22 is electrically connected to the terminal transmission / transmission device 10 and the storage / calculation unit 11.

The cover body 14 has a lower body portion 14a.
And an edge portion 14c connected to the upper portion of the main body portion 14a via an inclined portion 14b, which is screwed to the mechanism portion 3 via a set screw 24 (see FIG. 2). The projecting piece 25 and the partition plate 8 formed on the inner surface of the upper portion of the main body 14a
A packing 26 is interposed between the and. Edge 14c
The flow rate display unit 9 is displayed in the opening 27 surrounded by.

The auxiliary cover 12 is a member having a substantially L-shaped cross section, the lower side 12a of which is in contact with the bent portion 16 at the lower end of the base 13, and the gas flow rate detecting portion via the set screw 28 (see FIG. 2). 1 and covers the lower opening 5a of the case body 5. A wiring grommet 29 is provided on the lower side 12a of the auxiliary cover 12. Further, packing 31 is interposed between the upper side portion 12 b of the auxiliary cover 12 and the terminal block 22. A battery 32 is provided in the auxiliary cover 12.

As described above, in the present embodiment, in the gas meter having a built-in terminal transmission / transmission device, the terminal transmission / transmission device 10 and the storage operation unit 11 for processing the flow rate information are provided in the chambers before and after the case body 5. Since the terminals 6 and 7 are arranged side by side, the internal height of the gas meter does not increase due to the built-in terminal transmission / transmission device 10, and compatibility in mounting is not impaired.

Further, since the case body 5 is formed with the front and rear chambers 6 and 7 which are partitioned by the partition plate 8, the two chambers 6 and 7 are formed.
The terminal transmission / transmission device 10 and the storage / calculation unit 11 can be compactly housed, and by removing the auxiliary cover 12, connection work to the terminal block 22 is facilitated, and the terminal transmission / transmission device 12 loosens the screw 30. You can easily pull it out from below.

Furthermore, the cover main body 14 includes a main body 14a that covers the storage / calculation unit 11, and an edge portion 1 that extends upward from the main body 14a and is in contact with the front portion of the flow rate display unit 9.
4c, it is possible to cover the storage / calculation unit 11 and the flow rate display unit with a single cover main body 14, thus reducing the number of parts and simplifying the assembly work.

[0034]

As described above in detail, according to the first aspect of the invention, the terminal transmission / transmission device and the storage / calculation unit are arranged in parallel in front of the gas flow rate detection unit, and the terminal transmission / transmission is performed. By incorporating the device, the vertical height does not become large, the original height of the gas meter can be maintained, and compatibility in mounting is not impaired.

According to the second aspect of the invention, since the circuit board of the terminal transmission / transmission device is screwed in from the front of the case body via the screw, the terminal transmission / transmission device can be loosened from the front by loosening the screw. , It can be easily removed from the case body, and the replacement work of the terminal transmission device can be performed easily.

According to the third aspect of the present invention, the case body is formed with two chambers, one is the front chamber and the other is the rear chamber, and the auxiliary cover is detachable. The transmitter and storage unit can be stored compactly, and by removing the auxiliary cover, connection work to the terminal block is easy, and the terminal transmission transmitter can be easily pulled out from below, so that the terminal transmission transmitter can be replaced. Work can be done easily.

Further, according to the invention of claim 4, the cover main body is composed of the main body portion for covering the memory operation portion and the edge portion abutting against the front portion of the flow rate display portion, so that one cover is provided. The main body can cover the memory calculation unit and the flow rate display unit,
It is possible to reduce the number of parts and simplify the assembly work.

[Brief description of drawings]

FIG. 1 conceptually shows a gas meter of the present invention,
(A) is a side view and (b) is an operation explanatory view.

FIG. 2 is a partially cutaway front view showing an embodiment of a gas meter of the present invention.

FIG. 3 is a side view showing a cross section of a main part taken along line III-III in FIG.

FIG. 4 is a partially cutaway front view of a conventional gas meter.

FIG. 5 is a side view showing a cross section of a main part of a conventional gas meter.

[Explanation of symbols]

 1 Gas Flow Rate Detection Section 3 Mechanism Section 5 Case Body 5a Lower Opening (of Case Body) 6 Front Room 7 Rear Room 8 Partition Plate 9 Display Section 10 Terminal Transmission / Transmission Device 11 Memory Operation Section 12 Auxiliary Cover 13 Base 14 Cover Body 14a Body Part (of the cover body) 14c edge portion 20 circuit board 30 screw A gas meter

Claims (4)

[Claims] 1. A gas meter in which a mechanism section is provided above a gas flow rate detection section, a flow rate display section is provided in front of this mechanism section, and a terminal transmission / transmission device is built in. In the lower part of the flow rate display section on the front of the case, a case body having two chambers separated front and back is attached, the terminal transmission / transmission device is provided in one room, and a storage operation section for processing flow rate information is provided in the other room. A gas meter, characterized in that it is attached to each of the above, and a terminal block is provided below the memory operation unit. 2. The gas meter according to claim 1, wherein the circuit board of the terminal transmission device is screwed in from the front of the case body via a screw. 3. The case body is attached to a base attached to the gas flow rate detection unit, a front portion of the base, a partition plate for partitioning the two chambers, and a front portion of the partition plate. 3. The cover main body, and an auxiliary cover detachably attached to the lower part of the cover main body so as to cover the terminal block and the lower opening of the case body. Gas meter. 4. The cover main body includes a main body portion that covers the storage / calculation portion, and an edge portion that extends upward from the main body portion and contacts the front portion of the flow rate display portion. The gas meter according to claim 1, wherein the gas meter is a gas meter.