JP4098798B2 - Protection structure for gas piping equipment - Google Patents

Description

  The present invention relates to a protective structure for gas piping equipment, and more particularly to a protective structure for protecting gas piping equipment such as a gas meter installed outdoors and a gas stopper in the vicinity thereof.

Generally, the amount of gas used at home is measured between the gas inlet pipe (2) connected to the underground main pipe and the gas inlet pipe (3) for sending gas into each household. A gas meter (M) is provided.
This kind of gas meter (M) is usually installed outdoors. As shown in FIG. 5, the meter main body (20) in which a measuring instrument and the like are built in and the upper end of the meter main body (20) are arranged side by side. A gas inlet part (23) and a gas outlet part (33), and one end of a substantially U-shaped gas inlet pipe (21) is connected to the gas inlet part (23). A gas outlet pipe (31) having the same shape as the gas inlet pipe (21) is connected to (33).

The gas inlet pipe (2) is connected to the other end (inlet side end) of the gas inlet pipe (21) via a joint (22), and the other end of the gas outlet pipe (31). The gas feeding pipe (3) is connected to the end (outlet side end) via a joint (32).
As a result, the gas inlet pipe (2) and the gas inlet pipe (3) are connected via the gas inflow pipe (21), the gas meter (M), and the gas outflow pipe (31). Furthermore, gas is sent to various indoor gas appliances (40) through the indoor pipe (4) following the gas feed pipe (3).

Further, between the connection part of the gas inflow pipe (21) to the gas inlet part (23) and the connection part of the gas outflow pipe (31) to the gas outlet part (33), there is a gap between them. An interval holding metal fitting (50) for holding the interval is interposed.
Further, the gas inflow pipe (21) is provided with a gas stopper (24) for opening and closing the flow path in the gas inflow pipe (21), and the gas outflow pipe (31) has an internal flow path. An inspection hole (not shown) communicating with is formed.

The inspection hole is connected to a pressure gauge for measuring the pressure of the gas flowing in the gas passage of the gas outflow pipe (31), but is closed by the plug (5) except during measurement.
Since the gas meter (M) is installed outdoors, it is directly affected by rainwater, snow, direct sunlight, bird droppings, fallen objects from above, and the like.

For example, rainwater, snowmelt, etc. are connected to the gas plug (24), the connection between the gas inlet (23) and the gas inlet pipe (21), or the connection between the gas outlet (33) and the gas outlet pipe (31). Intrusion into the meter body (1) from a part or the like may cause various internal parts to rust or the instrument to malfunction.
Further, when the gas stopper (24) is heated by direct sunlight, the main body of the gas stopper (24) expands, and an internal gutter sinks into the main body, causing inconvenience that it bites into the main body.

Therefore, a cover disclosed in Japanese Patent Laid-Open No. 2003-65825 (see Patent Document 1) has been invented as a cover for protecting the gas meter (M).
As shown by the two-dot chain line in the figure, the meter body (20) is protected from external troubles such as rain water by covering the meter body (20) with a resin gas meter cover (51).
JP 2003-65825 A Japanese Utility Model Publication No. 62-170525

  However, in the gas meter cover (51) described above, the meter body (20) is protected, but the gas inflow pipe to the gas inlet part (23) protruding above the meter body (20) is provided. The connection part of (21), the connection part of the gas outlet pipe (31) to the gas outlet part (33), and the gas plug (24) are not protected and remain exposed to the outdoors.

In this case, the gas main body (20) before connecting the gas inlet part (23) and the gas outlet part (33) to the gas inlet pipe (21) and the gas outlet pipe (31) must be covered in advance. Therefore, it cannot be installed in the existing gas meter (M) and cannot be removed after the gas meter (M) is installed.
Furthermore, since the gas meter cover (51) is also covered on the display window (26) for displaying the amount of gas used, there is a problem that the display on the display window (26) is difficult to read.

  The present invention relates to a meter body having a gas inlet and a gas outlet, a pair of gas pipes for gas drawing and gas feeding connected to the gas inlet and the gas outlet, respectively, and the gas pipe. `` Protection structure for gas piping equipment having gas stoppers for opening and closing the flow passages of the gas pipe '', it is possible to protect not only the meter body but also the entire gas piping equipment including connections to the gas stoppers and gas piping, It is an object to make it possible to easily install it on any other object.

(1) The technical means of the invention according to claim 1 for solving the above-mentioned problem is as follows: “Over the meter main body including the gas inlet and the gas outlet, and above the gas plug over the entire area. Provide a covering plate,
The gutter plate is attached to a support body that can be fixed later to the gas pipe or a support member of the meter body so as not to cover the front surface of the meter body , and includes the gas plug. It is provided so as to be pivotable upward from a fixed posture covering the entire upper area .
The technical means operates as follows.
Since the upper part of the meter main body including the gas inlet part and the gas outlet part and the upper part of the gas stopper are configured to be entirely covered by a saddle plate, the saddle plate is a gas meter installed outdoors. The gas meter will be protected from the impact of rain, snow, direct sunlight, or falling objects from above.

When the gas pipe is a steel pipe capable of supporting the meter body, the support to which the saddle plate is attached is attached to the gas pipe, and when the gas pipe is a flexible pipe, it is retrofitted to the support member of the meter body such as a column. It can be fixed with.
In addition, since the cover does not cover the front face of the meter body, a display window for displaying the amount of gas used provided on the front face of the meter body is provided unless the support is provided along the front face of the meter body. It is not hidden by a mortar or support.
Further, since the saddle plate is provided so as to be pivotable upward from a fixed posture covering the entire upper area of the meter body including the gas stopper, the meter plate can be pivoted upward by rotating the meter plate. The upper part of the main body can be opened, and the operation of the gas stopper, the maintenance work of the gas piping facility, and the like are facilitated.

(2) The invention according to claim 2 is the protective structure of the gas piping facility according to claim 1, wherein the support is disposed along the back surface or the side surface of the meter body, It is extended from the upper end of the support body to the meter body side. Normally, the gas piping for gas drawing and gas feeding or the column as the support member of the meter body is along the back surface or the side surface of the meter body. By fixing the support body to these, the support body can be disposed along the back surface or the side surface of the meter main body.
The support and the flange extending from the upper end to the meter body will form a substantially inverted L-shaped body, but the flange is closer to the meter body than the horizontal posture. It is preferably held in a posture that is inclined slightly downward toward the bottom.

(3) The invention of claim 3 is the protective structure of the gas piping equipment of claim 1, wherein “the gas inlet part and the gas outlet part are arranged in parallel on the upper surface of the meter body,
A distance between the downstream end of the gas pipe for gas drawing connected to the gas inlet and the upstream end of the gas pipe for gas feeding connected to the gas outlet is maintained. For the interval holding metal,
The support is fixed in an upright state at the center of the interval holding metal fitting,
The said saddle plate is comprised from the 1st saddle plate extended to the said gas inlet part side from the upper end of the said support body, and the 2nd saddle plate extended to the said gas outlet part side. Is.
The spacing metal fitting is configured so that the distance between the pair of gas pipes before the meter main body is attached is a distance between the gas inlet portion and the gas outlet portion, which are respectively provided near the left and right ends of the upper surface of the meter main body. In order to maintain the matched state, it is interposed between the gas pipes. Normally, after the meter main body is installed, the meter main body is located above the meter main body and parallel to the upper surface thereof.

Therefore, the support body fixed to the center of this space | interval holding | maintenance metal fitting becomes a mode located in the center part between the said gas inlet part and a gas outlet part, From the upper end, the said gas inlet part side and the said gas outlet part side By projecting the first and second ribs so as to project from each other, a substantially T-shaped body is formed as a whole.
In addition, it is desirable that the first and second ribs can be held so as to be inclined slightly downward toward both sides.

Since the present invention has the above configuration, the present invention has the following specific effects.
According to the first aspect of the present invention, the gas pipe facility including the meter main body, the connecting portion between the meter main body and the gas pipe, and the gas plug is protected from rain, direct sunlight, falling objects, etc. Therefore, it is possible to prevent the inconvenience that water enters the gas plug and the meter main body, rusts the internal components, and the instrument malfunctions.

Moreover, even if the installation location of the meter main body is a location where it is exposed to direct sunlight, the meter body is not shaded by the direct sunlight because it is behind the cover plate.
Furthermore, bird's droppings and fallen objects from above are also received by the slats, so that gas piping equipment such as a meter body can be reliably protected.

In addition, the support to which the plate is attached can be fixed to the gas pipe or support member of the meter body such as a column by retrofitting, so it can be easily installed on an existing gas meter or removed. Is also possible.
Furthermore, since the display window provided on the front surface of the meter body is not covered, the numerical value of the amount of gas used displayed on the display window can be easily confirmed.
Further, by rotating the saddle plate upward, the saddle plate does not get in the way during the operation of the gas stopper or the maintenance work of the gas pipe, so that it is easy to use. Moreover, mischief and erroneous operation can be prevented by enabling the operation of the gas stopper only when the cover plate is opened.

  In addition to the above effects, in the invention of claim 2, the support body is fixed to a support as a support member of the gas pipe or the meter body so as to follow the back surface or the side surface of the meter body. There is an effect that the support can be attached in a vertical posture and in a stable state.

  Further, the invention of claim 3 is advantageous in that the support can be installed even in a gas piping facility installed in a narrow place where there is no extra space around the meter body.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a main part of a gas piping facility mainly including a gas meter (M) according to a first embodiment of the present invention.

  The gas meter (M) employed in the first embodiment is similar to the conventional gas meter (M), in the vicinity of the left and right ends of the upper surface of the meter body (20), the gas inlet part (23) and the gas outlet part (33). And a gas inlet pipe (21) formed in a straight line above the gas inlet (23) is connected to extend to the rear of the meter body (20), and the gas A gas stopper (24) for opening and closing the flow path is connected between the inflow pipe (21) and the gas inlet part (23), and the operation part (25) is connected to the front surface of the meter body (20). It is provided so as to protrude to the side.

On the other hand, a gas outlet pipe (31) formed in a straight line is connected above the gas outlet part (33) so as to be parallel to the gas inlet pipe (21), and the gas outlet pipe ( Gas pressure inspection plug for connecting a pressure gauge (not shown) for measuring the pressure of the gas flowing in the flow path of the gas outflow pipe (31) between the gas outlet part (33) and 31) (41) protrudes in the same direction as the operation part (25) of the gas plug (24) so as to communicate with the flow path of the gas outflow pipe (31).
By connecting the pressure gauge, the gas pressure inspection plug (41) is maintained in the closed state unless the built-in valve body is opened. In this closed state, the protective cap (Not shown) is attached to the base end of the gas pressure test plug (41) by screwing.

The upstream end of the gas inlet pipe (21) is connected to a gas inlet pipe (2) for drawing gas from the underground gas pipe via a joint (22). A gas feed pipe (3) for feeding gas into the room is connected to the downstream end of the pipe (31) via a joint (32).
The gas inlet pipe (2) and the gas inlet pipe (3) are made of steel pipes and extend vertically along the back surface of the meter body (20). It is also used as a support leg that supports

Thus, the meter main body (20) is installed outdoors in a mode supported by the gas inlet pipe (2) and the gas inlet pipe (3).
In the first embodiment, the support body (1) is attached to the gas inlet pipe (2) and the gas inlet pipe (3) by fixing metal fittings (12) and (13), respectively.

  The support (1) includes a main plate (1a) to which the fixing brackets (12) and (13) are screwed, and a pair of side plates (1b) (1b) projecting from both side edges to the gas meter (M) side. 1c), the side plates (1b) and (1c) are configured to extend upward from the gas plug (24) and the gas pressure test plug (41). In addition, the plate (10) is pivotally supported at its extended end.

  The saddle plate (10) includes a meter main body (20), a gas inlet pipe (21) and a gas stopper (24) thereabove, and a gas outlet pipe (31) and a gas pressure test plug (41). Consists of a generally U-shaped cross section that opens downward from a collar portion (10a) sized to cover the entire upper area and a pair of side plates (10b) (10c) projecting downward from both sides thereof. The side plate (10b) is pivotally supported inside the side plate (1b) of the support (1) and the side plate (10c) is pivotally supported inside the side plate (1c) of the support (1). .

  Near the base end portion of the outer surface of the side plate (10b) (10c) of the side plate (10), a slide substrate (11) is provided along the longitudinal direction of the side plate (10b) (10c). In the slide substrate (11), a groove (11a) along the longitudinal direction is formed so as to open only to the rear.

In the vicinity of the upper end of the outer surface of the side plate (1b) (1c) of the support body (1), a convex piece (14) that slides in the groove (11a) is provided with a stopper piece (15 ) Is pivotally supported by the other end.
The length of the stopper piece (15) is greater than the distance from the shaft support (16) between the support (1) and the saddle plate (10) to the front closed end of the groove (11a) of the slide substrate (11). The distance is set longer than the distance from the shaft support portion (17) of the stopper piece (15) to the upper ends of the side plates (1b) (1c).

Thus, the stopper piece (15) is a stopper that prevents further downward rotation of the flange plate (10) when the convex shaft portion (14) reaches the front closed end of the groove portion (11a). In addition, if the saddle plate (10) is rotated upward, the convex shaft portion (14) slides backward in the groove portion (11a), so that the saddle plate ( 10) can be rotated upward as shown in FIG.
In addition, the convex shaft portion (14) of the stopper piece (15) is in a state where the collar plate (10) is rotated until it reaches a substantially vertical state above the support (1). The size and the installation position of the slide substrate (11) are set so as to be positioned in the vicinity of the open end in the groove portion (11a).

Further, in a state where the convex shaft portion (14) has reached the front closed end of the groove portion (11a), the flange portion (10a) of the flange plate (10) is slightly lowered toward the front rather than in a horizontal posture. The relationship between the length of the stopper piece (15) and the length of the groove (11a) of the slide substrate (11) is set so that the slope is formed.
In this case, the plate (10) protrudes toward the gas meter (M) from the upper end of the support (1) disposed along the back surface of the gas meter (M), so that the whole is substantially inverted L-shaped. The gas plate (10) covers the upper part of the entire gas meter (M) including the connection part of the gas stopper (24) and the gas inlet pipe (21) and the gas outlet pipe (31). It becomes a mode.

Thereby, the gas meter (M) will be protected from rain, snow, direct sunlight, and falling objects from above such as bird droppings, and in the gas plug (24) and the meter body (20) Inconveniences such as water entering inside, thermal expansion, fouling, and damage due to external impact from above are prevented.
In addition, in the state where the upper part of the gas meter (M) is covered, the saddle plate (10) is set in a slightly inclined posture to descend forward, so that rainwater may accumulate on the upper surface of the saddle plate (10). , Preventing the inconvenience of snow.

Then, the operation part (25) of the gas plug (24) is operated, or a pressure gauge socket (not shown) is connected to the gas pressure test plug (41) to flow through the gas outflow pipe (31). When measuring the pressure of the gas, as shown in FIG. 2, the work plate 10 can be easily operated by rotating it upward.
Furthermore, since the cover plate (10) does not cover the front surface of the meter body (20), the display on the display unit (26) is easy to confirm.

  In the second embodiment shown in FIG. 3, the gas inlet pipe (2) and the gas inlet pipe (3) are constituted by flexible pipes, and the gas plug (24) is provided above the meter body (20). The gas inlet pipe (2) and the gas inlet pipe (3) are provided to protect the gas meter (M) having a configuration in which the operation section (25) and the gas pressure inspection plug (41) are protruded. ) Is covered with a tubular column (30) made of steel pipe, and the meter body (20) is supported outdoors by the column (30).

  In this embodiment, the support body (1) is fixed to the support post (30) by the fixing bracket (34), and is disposed along the back surface of the meter body (20). From the upper end of the body (1), the saddle plate (10) is attached to the side plates (1b) (1c) of the support body (1) so as to be rotatable in the same manner as in the first embodiment. ing.

  In the same manner as the first embodiment plate (10), the plate (10) of this embodiment also protrudes slightly downward from the rear of the meter body (20) toward the front. Gas meter (M) including the connection to the gas inlet pipe (21) and gas outlet pipe (31) of the gas stopper (24) and the gas inlet pipe (2) and the gas inlet pipe (3) It is comprised in the cross-sectional substantially reverse L-shaped body which can coat | cover the upper whole area.

And, when operating the operation unit (25) and the gas pressure test plug (41), it is easy to work if the upper part of the meter body (20) is opened by rotating the cover (10) upward. It becomes.
Further, by setting the positions of the gas plate (10) and the gas plug so that the gas plug can be operated only when the plate (10) is opened, mischief and erroneous operation can be prevented.

The support (1) in the first and second embodiments described above includes a gas inlet pipe (2) and a gas inlet pipe (3) or a column (30) supporting the meter body (20). ) Can be easily fixed using the fixing metal fittings (12), (13), and (34), so that it can be easily attached to the existing gas meter (M) and can be easily removed.
Furthermore, since the gas inlet pipe (2) and the gas inlet pipe (3) are disposed along the column (30), the support (1) can maintain a stable mounting posture.

Next, the protection structure for the gas piping equipment of the third embodiment shown in FIG. 4 will be described.
The gas meter (M) employed in this embodiment particularly has a downstream end of the gas inlet pipe (21) and a gas outlet pipe (31) connected to the gas inlet part (23) and the gas outlet part (33), respectively. In order to maintain the distance between the upstream end and the distance between the gas inlet part (23) and the gas outlet part (33), the downstream end of the gas inlet pipe (21) And an interval fitting (50) are interposed between the gas outlet pipe (31) and the upstream end of the gas outlet pipe (31).
In addition, the gas pipe for gas intake defined in claim 3 is composed of the gas intake pipe (2) and the gas inflow pipe (21), and the gas pipe for gas supply is the gas supply pipe. It is assumed that it is composed of a pipe (3) and a gas outflow pipe (31).

In this embodiment, the support (1) is configured to stand upright on the interval holding metal fitting (50).
The support body (1) is a plate-like body that is disposed along the depth of the spacing metal fitting (50) and has a width that substantially matches the depth, and at the lower end thereof, a bolt is attached to the spacing metal fitting (50). (B) (B) and a fixing plate (100) for fixing with nuts (N) (N) are connected.

  The height of the support (1) is such that the gas stopper (24) and the gas pressure test plug (41) projecting above the meter body (20) in a state of being fixed to the gap holding metal fitting (50). ) Is set to a length extending upward from the upper end of the support (1). On the left and right sides of the upper end of the support (1), the first rib (101) and the second rib (102) are hinges (18) (18 ) To be pivotably attached.

The first gutter plate (101) has a gas inlet pipe (21), a gas plug (24), and a gas provided so as to protrude above the meter body (20) and to one side thereof (left side in the drawing). It is provided in a size that covers all the upper part of the lead-in pipe (2), and the second gutter plate (102) extends over the meter body (20) and the other side (right side in the drawing). The gas outlet pipe (31), the gas pressure inspection plug (41), and the gas feed pipe (3) are all sized to cover the upper part of the gas outlet pipe (31). Make up body.
In the drawing, the gas pressure test plug (41) is covered with a protective cap (42).

  The first end plate (101) and the second end plate (102) have rearward ends on both the left and right sides of the support (1) so as to form inclined surfaces that slightly descend toward both sides rather than horizontally. In the vicinity, stoppers (19) and (19) are provided so as to project obliquely upward.

Also in this embodiment, the upper part of the gas meter (M) is protected entirely by the first and second rib plates (101) and (102), and the gas plug (24) is operated. When using the gas pressure test plug (41), the first hook plate (101) or the second hook plate (102) can be turned upward to open the upper side of the gas meter (M). Therefore, the first and second ribs (101) and (102) do not interfere with the work.
In this case as well, misplacement and misoperation can be prevented by setting the positions of the gas plate (10) and the gas plug so that the gas plug can be operated only when the plate (10) is opened. .

The perspective view which shows the principal part of the protection structure of the gas piping equipment of 1st embodiment of this invention. The side view which shows the use condition of the protection structure of the gas piping equipment of 1st embodiment of this invention. The front view which shows the protection structure of the gas piping installation of 2nd Embodiment of this invention. The front view which shows the protection structure of the gas piping installation of 3rd Embodiment of this invention. The front view which shows the protection structure of the conventional gas piping installation.

Explanation of symbols

(1) ... Support
(10) ...
(2) ... Pipe for gas intake
(20) ・ ・ ・ Meter body
(21) ・ ・ ・ Gas inlet pipe
(23) ・ ・ ・ Gas inlet
(24) ・ ・ ・ Gas stopper
(3) ... Pipe for gas feed
(30) ... Prop
(33) ・ ・ ・ Gas outlet
(M) ・ ・ ・ Gas meter

Claims (3)

Meter body having a gas inlet and a gas outlet, a pair of gas pipes for gas drawing and gas feeding connected to the gas inlet and the gas outlet, respectively, and opening and closing the flow path of the gas pipe In the protective structure of the gas piping equipment comprising the gas stopper
Providing a gutter covering the entire area of the meter body including the gas inlet part and the gas outlet part, and covering the entire area of the gas stopper;
The gutter plate is attached to a support body that can be fixed later to the gas pipe or a support member of the meter body so as not to cover the front surface of the meter body , and includes the gas plug. A protective structure for a gas piping facility, which is provided so as to be rotatable upward from a fixed posture covering the entire upper area .   The protection structure for a gas piping facility according to claim 1, wherein the support is disposed along a back surface or a side surface of the meter body, and the saddle plate extends from the upper end of the support body to the meter body side. Protective structure for gas piping equipment, characterized by The protection structure for gas piping equipment according to claim 1, wherein the gas inlet portion and the gas outlet portion are provided side by side on the upper surface of the meter body.
A distance between the downstream end of the gas pipe for gas drawing connected to the gas inlet and the upstream end of the gas pipe for gas feeding connected to the gas outlet is maintained. For the interval holding metal,
The support is fixed in an upright state at the center of the interval holding metal fitting,
The said saddle plate is the protection structure of the gas piping installation comprised from the 1st saddle plate extended to the said gas inlet part side from the upper end of the said support body, and the 2nd saddle plate extended to the said gas outlet part side. .

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