JPH077658Y2 - Jig for shutting off valve in gas meter - Google Patents

Description

TECHNICAL FIELD The present invention relates to a jig for resetting the shutoff valve in a gas meter provided with a shutoff valve that automatically shuts off a gas flow path in an emergency and a reset push button.

2. Description of the Related Art The shutoff valve of this type of gas meter is normally kept open by a holding mechanism that uses a self-holding solenoid, etc. In the event of an emergency, such as in the event of an emergency, this is detected by an anomaly detector such as a flow sensor or a seismic sensor, and a holding release command is issued to the above holding mechanism, which automatically shifts to the valve closed state and shuts off the gas flow path. It is done like this. When the abnormal condition is released and the gas appliance is to be used again, the valve body of the shutoff valve in the closed state is pushed by the push button by pushing the reset push button protruding from the meter body by hand. The valve is opened again. A detachable cap is usually screwed on the protruding portion of the push button (Japanese Utility Model Laid-Open No. 61-141875, etc.).

However, in general, gas meters are often installed in high places on the outer walls of buildings that are hard to reach, and a footrest or stepladder is required when performing the above-mentioned shutoff valve return operation, which is extremely inconvenient. Met.

This invention was made in order to solve the above-mentioned conventional problems, and even if the gas meter is installed at a position where it is difficult to reach such as a high place, it is possible to use an umbrella or other appropriate stick or operating cord. With the aim of providing a shut-off valve resetting operation jig that can perform a shut-off valve resetting operation extremely easily and surely and can be installed on an existing gas meter of this kind without any modification. There is.

Means for Solving the Problem That is, a jig for resetting a shutoff valve in a gas meter according to the present invention comprises a shutoff valve (15) for automatically shutting off a gas flow path in an emergency in order to achieve the above object. In a gas meter having a reset push button (28) which protrudes from the meter body (9) and returns the shut-off valve to the open state after the shut-off operation by pushing the gas, the gas meter is operated by pushing the push button (28). A tool (1) for covering a reset push button (28) and having a substantially cylindrical mounting cover (2) with a rear end face opened to be mounted around the reset push button (28), and a vertical direction provided on the cover (2). The cover (2) with the base end inserted in the split groove (2a)
And a push lever (3) pivotally attached to the upper and lower sides of the push lever (3) rotatable in a vertical direction over a predetermined angle range. The push lever (3) has a reset push button (28) at the base end on the pivot side. While a bulging pressing portion (7) facing the front is provided, a concave curved plate-like protrusion that normally points downward at the tip of the central piece (3a) protruding outward from the mounting cover (2). The rod receiving portion (4) is formed, and the operation string connecting portion (5) is provided at a position near the tip of the central piece (3a), and the pushing operation of the receiving rod (4) by the protruding rod is performed. Alternatively, the lever (3) is rotated in one direction by the pulling operation of the operation string connected to the connecting portion (5), and the reset push button (28) is pushed by the pushing portion (7). It has been done.

Action When the shut-off valve (15) that has been shut off is returned after the abnormal state is released, it is pushed by the push rod of the receiving part (4) or the pulling operation of the operation string connected to the connecting part (5) is performed. , The pressing lever (3) of the jig (1) is rotated counterclockwise, for example. Then, the reset push button (28) is pushed by the pushing portion (7) of the lever (3), and the shutoff valve (15) is returned to the original valve open state.

Embodiment Hereinafter, the invention will be described based on illustrated embodiments.

As shown in FIGS. 1 to 3, the return operation jig (1) is
A substantially cylindrical mounting cover (2) having an opening on the rear end surface thereof and a pressing lever (3) pivotally mounted on the mounting cover (2) are both composed of two members made of a hard synthetic resin or the like. The mounting cover (2) is longitudinally split along the axial direction, leaving only the rear portion on the upper surface side in the split groove (2a), and screw holes orthogonal to the split groove (2a) are formed in the lower front and rear two places. (2b) and (2c) are drilled.

The pressing lever (3) has a slightly curved center piece (3a),
Pivoting wings (3
b) and the tying wing piece (3c) are formed into a substantially T-shaped plate, and the central piece (3a) has a concave curve with parallel anti-slip concavities and convexities (4a) on the top and bottom edges of the peripheral edge. An operating string connecting part (5) is provided with a dish-shaped rod receiving part (4), and holes are provided at a position near the tip of the central piece (3a) and a tip of the stringing blade piece (3c). Is formed, a substantially square stopper piece (6) is integrally formed at the tip of the pivoting blade piece (3b), and a bulging pressing portion (7) is further formed at the base end of the central piece (3a). ) Has been formed. In this pressing lever (3), the pivoting blade piece (3b) is inserted into the split groove (2a) of the mounting cover (2), and the screw (8a) is inserted into the screw hole (2b) on the front part. By screwing through the wing piece (3b), the center piece (3a) and the tying wing piece (3c) can be rotated around the screw (8a) with the center piece (3a) and the stringing wing piece (3c) protruding from the mounting cover (2). Is pivotally attached to. In addition, this rotation range is the stopper piece (6).
Is set in a range from the position where the base contacts the lower surface side edge of the split groove (2a) to the position where the base of the stringing blade (3c) contacts the upper surface side end of the split groove (2a).

FIG. 4 shows a gas meter body (9) to which the above-mentioned restoration operation jig (1) is attached. This gas meter body (9)
Is an upper case (9a) having an inlet (10a) and an outlet (10b) on both sides of the surface and an integrating meter display (11) on the entire surface, and a lower case (9b) constituting a measuring chamber. It consists of

As shown in FIGS. 5 and 6, in the upper part of the upper case (9a), there are a valve chamber (13) and a flow chamber (14) partitioned by an inward flange-shaped partition wall (12). The circular valve seat (15a) is fixed to the partition wall (12), and the sliding cylinder (1) having a short cylindrical shape is formed inside the valve seat (15a).
6) is slidably inserted in the axial direction via an O-ring (17). A flow port (16a) is provided at the bottom of the sliding cylinder (16). The sliding cylinder (16) is set such that the inner end of the sliding cylinder (16) is always slightly lower than the valve seat (15a), that is, on the distribution chamber side.

Further, a disc-shaped valve body (15b) which is fixed to one end of the plunger (18) and constitutes a shutoff valve (15) together with a valve seat (15a) is arranged in the valve chamber (13). Plunger (18)
A self-holding solenoid (19) composed of a coil (19a) surrounding the coil (19a), a yoke (19b) covering the coil (19b), and a magnet (19c) provided at the bottom of the yoke (19b) is provided on the other end side of the It is installed and the valve body (15b) is biased by the spring (20) toward the valve seat (15a). That is, in the shutoff valve (15), when the coil (19a) of the self-holding solenoid (19) is not energized, the plunger (18) overcomes the spring (20) and is attracted to the magnet (19c), and the valve body (15b). ) Is in a valve open state separated from the valve seat (15a), but when a coil (19a) is momentarily energized in response to a command from an abnormality detector (not shown) in an emergency, a reverse magnetic field is generated and the plunger ( 18) disengages from the magnet (19c), and the valve body (15b) is pressed against the valve seat (15a) by the stored force of the spring (20) to close the valve, and the valve chamber (13) and the flow chamber (14). It is designed to shut off the gas flow between and.

Incidentally, (21) is an O-ring, and (22) is a cover for the solenoid (19).

On the other hand, on the side opposite to the partition wall (12) of the distribution room (14),
The holding cylinder (23) coaxial with the sliding cylinder (16) is the upper case (9a).
The return shaft (25), the spring (26) surrounding the return shaft (25), and the guide cylinder (27) located on the outer side are screwed into the screw hole (24) formed in the holding cylinder (23). Has been dressed up. The return shaft (25) has a sliding cylinder (1
The other end, which is connected and fixed to 6) and has a flange shape, projects outward from the meter body (9) to form a reset push button (28), and in the direction in which it projects outward due to the accumulated force of the spring (26). Being energized. (29) is an O-ring.

The return operation jig (1) has a reset push button (28) housed in the mounting cover (2), and has a male screw-shaped outward protrusion (provided for mounting the cap of the holding cylinder (23) ( 23a)
It is attached by fitting the cover (2) through the O-ring (30) and tightening the screws (8a) and (8b) screwed into the screw holes (2b) and (2c). The jig (1) can be attached upside down from the state shown in FIGS.

In the gas meter configured as described above, in order to restore the shut-off valve (15) that has been shut off after the abnormal state is released, in the closed state shown in FIG. 5, press the pressing lever (3) of the jig (1) in the arrow direction. As described above, it may be rotated counterclockwise as shown.
That is, by this operation, the reset push button (28) is pushed by the pushing portion (7) of the lever (3), and the return shaft (25) resists the bias of the spring (26) and together with the guide tube (27). The sliding cylinder (16) that moves inward and is connected to the tip of the return shaft (25) is pressed against the valve body (15b) that was in the valve closed state, and the valve body (15b) springs ( It returns to the original valve open position as shown in Fig. 6 against the bias of 20). Here, since the coil (19a) of the solenoid (19) is in the non-energized state, the plunger (18) of the valve body (15b) overcomes the spring (20) and is attracted to the magnet (19c), and the valve open state is Maintained. Then, when the rotation of the lever (3) is stopped, the return shaft (25) and the sliding cylinder (16) are automatically moved outward by the accumulated force of the spring (26), and the reset push button (28) is moved. The lever (3) is pressed and rotated in the clockwise direction shown in the drawing to return to the original protruding state shown in FIG. 5, and the stopper piece (6) of the lever (3) also has the mounting cover portion (2).
Return to the posture of touching the lower surface of.

As described above, in order to rotate the pressing lever (3) in order to return the shutoff valve (15), an appropriate projecting rod (31) is used as shown by the solid line in FIG. (3) The downward protruding rod receiving portion (4) may be pushed up from below, or as shown in FIG. 8, the jig (1) is placed in an attached state in which the protruding rod receiving portion (4) faces upward, and the lever ( The operation string (32) is attached to the operation string connecting portion (5) of the center piece (3a) of 3) or the tying blade piece (3c).
May be connected and drooped, and this may be pulled downward. When the area around the installation portion of the gas meter body (9) is narrow and it is difficult to adopt the above-mentioned operation, the operation cord (32a) connected to the operation cord connecting portion (5) is indicated by the phantom line in FIG. Hang it down along the wall surface from the back side through the upper surface of the meter body (9) and pull it downward, or pull the operation string (32b) connected to the operation string connection part (5) into the kitchen. It is also possible to pull and operate the operation cord indoors. Further, when the meter body (9) is at a very low position such as in the ground, the jig (1) is attached so that the protruding rod receiving portion (4) faces upward, and the receiving portion (4) is attached.
The push rod (31) can be pushed down from above to perform the return operation. In addition, the jig (1) is mounted in the mounting position, that is, the direction of the rod receiving portion is set sideways or diagonally so that the push rod (31) can be easily pushed according to the situation around the installation portion of the gas meter body (9). Various settings such as orientation can be set. The thrust bar (31)
There is no need to prepare a special one, and an unmatched rod-shaped object such as an umbrella can be used.

The return operation jig (1) of the present invention is not limited to the gas meter exemplified above, and for example, does not have the sliding cylinder (16) and the return shaft (25) directly presses the valve body (15b) during the return operation. It can be attached to gas meters having various different detailed configurations, such as a structure having a guide tube (27), a structure in which the shutoff valve (15) operates differently, and the like.

Effect of the Invention With the shutoff valve resetting operation jig of the gas meter according to the present invention, the shutoff valve resetting operation after shutoff operation can be performed even when the gas meter is installed in a position where it is difficult to reach such as a high place. It can be performed extremely easily and surely, and the operation means can be selected from the push-pushing operation with the push rod and the pulling operation of the operation cord according to the surrounding situation of the installation position, and the latter pulling of the operation cord can be performed. The operation position can be set indoors or outdoors. In addition, the above-mentioned return operation jig is
It can be installed without any modification to the reset push button part of the existing gas meter.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partially cutaway side view of a resetting operation jig, and FIG.
II-II line sectional view, FIG. 3 is an exploded perspective view of the jig,
FIG. 4 is a perspective view of a gas meter equipped with the above jig, and FIG.
The figure shows a vertical cross-sectional view of the main part of the gas meter when the shut-off valve is in the closed state. Fig. 6 is a vertical cross-sectional view of the main part of the gas meter during the return-operation of the shut-off valve. Figs. It is a schematic side view explaining. (1) …… Returning operation jig, (2) …… Mounting cover,
(3) …… Pressing lever, (4) …… Rib bar receiving part,
(5) …… Operation string connection part, (9) …… Gas meter body,
(15) ... shut-off valve, (28) ... reset push button, (31) ...
… Protruding rod, (32) (32a) (32b) …… Operation string.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoichi Miyata 2-10-16 Higashiobashi, Higashinari-ku, Osaka City, Osaka Prefecture Kansai Gas Meter Co., Ltd. (56) References 61-141875 (JP, U) Actually open 61-16476 (JP, U) Actually open 63-173575 (JP, U) Japanese public Sho 48-13501 (JP, B1) Actual public 37-31048 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A shutoff valve (15) for automatically shutting off a gas flow channel in an emergency, and a reset for projecting from a meter body (9) and pushing it to restore the shutoff valve to an open state after shutoff operation. A gas meter having a push button (28), which is a jig (1) for pushing and operating the push button (28), and which is a substantially tubular member having a rear end face opened to cover the reset push button (28) and be mounted around the reset push button (28). -Shaped mounting cover (2) and a predetermined vertical direction pivotally attached to the cover (2) with the base end inserted in a vertical split groove (2a) provided in the cover (2). The pressing lever (3) is rotatable in an angular range, and the pressing lever (3) has a bulging pressing force that is exposed to the reset push button (28) at the base end portion on the pivot side. Division (7)
On the other hand, while the center piece (3a) projecting outward from the mounting cover (2) is provided with a concave curved dish-shaped protruding rod receiving portion (4) which is normally oriented downward,
The operation string connecting part (5) is provided at a position near the tip of the central piece (3a), and the operation string is pushed by the protruding rod of the receiving part (4) or is connected to the connecting part (5). The pulling operation of the lever causes the lever (3) to rotate in one direction and the reset push button (28) to be pushed by the pushing portion (7). .