JP6909718B2 - Gas recovery container - Google Patents

Description

The present invention relates to a gas recovery container.

The gas used by the customer is supplied to each customer via a gas pipe and a gas meter. In addition, the gas meter is required to be replaced at regular intervals by the Measurement Law. Air remains in the new gas meter that has been replaced. Therefore, after the replacement of the gas meter, an operation of purging the air remaining in the gas meter (hereinafter referred to as "residual air") (hereinafter referred to as "purge operation") is performed.

In recent years, when performing purging work, a gas recovery container is connected to the gas discharge port of cheese provided in the gas outlet of the gas meter via a conduit to remove the purged residual air and the gas released by the purging work. It is collected in a gas recovery container. Patent Document 1 discloses a recovery gas adsorption container in which the inside of a plastic container is filled with activated carbon and a gas input / output valve is connected to the plastic container.

Japanese Unexamined Patent Publication No. 2004-346986

In such a gas recovery container, the connecting member for gas input / output may be movable in consideration of operability during work. In that case, when the gas recovery container is transported, the connecting member may inadvertently protrude and be damaged or broken.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a gas recovery container capable of suppressing damage to connecting members during transportation.

In order to achieve the above object, in the gas recovery container of the first invention, a communication passage communicating with the container body and the inside of the container body is formed, and the gas recovery container is erected so as to protrude from the container body. It has an extension portion and an extension portion that is bent from the tip of the upright portion and extends to form a connection opening between the communication passage and another member, and the extension portion is provided on the outer surface of the container body. A connecting member having a valve that allows the connection opening to be moved to a storage position along the container and a use position that is farther from the outer surface of the container body than when it is arranged at the storage position, and that can open and close the communication passage. A closing cap that is inserted into the connection opening to close the connection opening, a cap mounting portion attached to the closing cap, a main body mounting portion attached to the container main body, a cap mounting portion, and the main body mounting portion. It has a connecting portion for connecting the and, and has a holding member for holding the connecting member in the storage position via the closing cap in a state where the closing cap is inserted into the connection opening. ..

The gas recovery container of the first invention includes a connecting member having a communication passage that communicates with the inside of the container body and has a valve that can open and close the communication passage. The connecting member consists of an upright portion that is vertically formed so as to protrude from the container body, and an extension portion that is bent from the tip of the upright portion and has a connecting opening in which the extending continuous passage is connected to other members. have. The connecting member can be moved to a storage position where the extension portion is arranged along the outer surface of the container body and a usage position where the connection opening is farther from the outer surface of the container body than when it is arranged at this storage position. Has been done.

At the time of gas recovery, the connecting member is arranged at the position of use to connect the connecting opening and another member, for example, a connecting pipe. At the use position, the connection opening is farther from the outer surface of the container body than when it is arranged at the storage position, so that workability is improved.

When the gas recovery operation is not performed, by inserting the closing cap into the connection opening, it is possible to prevent the inflow of air into the container body even if the connecting passages of the connecting members are inadvertently opened.

Further, since the connecting member is held at the storage position by the holding member via the closing cap with the closing cap inserted in the connection opening, damage to the connecting member during transportation can be suppressed.

Further, the closing cap is removed from the connection opening during the gas recovery work, but since it is attached to the cap mounting portion of the holding member, it does not come off from the container body, and the closing cap is lost during the gas recovery work. Can be prevented.

In the gas recovery container of the second invention, the container body has a cylindrical side surface portion and a shoulder portion that continuously extends inward in the radial direction from the upper end of the side surface portion and reduces the diameter of the opening of the side surface portion. The upright portion is formed on the shoulder portion, and the connecting member can rotate around the upright portion and move between the storage position and the use position.

In the gas recovery container of the second invention, since the vertical portion of the connecting member is formed on the shoulder portion of the container body, the connection opening can be easily used by rotating the connecting member around the vertical portion. Can be placed in position.

In the gas recovery container of the third invention, the connection member is arranged at the storage position, and the connection opening is arranged radially inside the side surface portion in a plan view.

According to the gas recovery container of the third invention, since the connection opening of the extension portion arranged at the storage position is arranged radially inside the side surface portion, the obstacle or the like interferes with the connecting member during transportation. Is suppressed, and damage to the connecting member is suppressed.

In the gas recovery container of the fourth invention, the connecting portion is made expandable by elastic deformation, and the connecting member is extended when the closing cap is inserted into the connecting opening while the connecting member is arranged at the used position. It is arranged at the storage position by shortening due to the restoring force of the connecting portion.

In the gas recovery container of the fourth invention, when the closing cap is inserted into the connection opening with the connecting member arranged at the used position, the connecting portion is elastically deformed and is in an extended state. When the connecting portion is shortened by the restoring force, it moves together with the closing cap and the connecting member is automatically placed in the storage position. As a result, it is not necessary to manually arrange the connecting member at the storage position, and the labor of storage at the end of the work after the gas recovery is reduced, and the convenience is improved.

In the gas recovery container of the fifth invention, a hook portion having a mounting hole formed is formed on the outer surface of the container body, and the main body mounting portion is formed into a string shape and inserted into the mounting hole to be mounted on the hook portion. It is something that can be done.

According to the gas recovery container of the fifth invention, the holding member can be easily attached to the container main body by using the string-shaped main body attachment portion.

In the gas recovery container of the sixth invention, the closing cap has an insertion cylinder portion inserted into the connection opening and a flange portion formed at one end of the insertion cylinder portion having a diameter larger than that of the insertion cylinder portion. The cap mounting portion has an annular shape having an inner diameter smaller than that of the flange portion, and is mounted on the closing cap in a state where the insertion cylindrical portion is inserted.

According to the gas recovery container of the sixth invention, the closing cap can be attached to the cap attachment portion with a simple structure.

According to the gas recovery container of the present invention, damage to the connecting member during transportation can be suppressed.

It is a front view which shows an example of the structure of the gas meter which is the work target in this embodiment. It is a side view of the gas recovery container which concerns on this embodiment. It is a top view when the gas recovery container which concerns on this embodiment is not used. It is a side view of the holding member and the closing cap of this embodiment. It is a top view at the time of use of the gas recovery container which concerns on this embodiment. It is a top view which shows the state immediately after attaching the closing cap at the end of use of the gas recovery container which concerns on this embodiment.

Hereinafter, examples of embodiments for carrying out the present invention will be described in detail with reference to the drawings.

As an example, the gas recovery container 10 of the present embodiment is used at the time of replacement work of the gas meter GM shown in FIG. An inlet G12 and an outlet G14 are connected to the gas meter GM. The immigration G12 is provided with a meter cock G16, and the immigration G14 is provided with cheese G18. A plug G18B is attached to the gas outlet G18A of the cheese G18. The replacement work of the gas meter GM will be described later.

As shown in FIG. 2, the gas recovery container 10 of the present embodiment includes a container body 12 containing a synthetic resin, a metal, or the like. The container body 12 has a bottom portion 13, a side surface portion 14, a shoulder portion 16, and a mouth portion 18. The bottom portion 13 has a circular shape and constitutes the bottom surface of the container body 12. The side surface portion 14 has a cylindrical shape formed continuously from the bottom portion 13. The shoulder portion 16 continuously extends inward in the radial direction from the upper end of the side surface portion 14, and the opening of the side surface portion 14 is reduced in diameter. The mouth portion 18 has a cylindrical shape that extends continuously upward from the inner end of the shoulder portion 16. A male screw (not shown) is formed on the outer periphery of the mouth portion 18, and a cap 19 is screwed onto the mouth portion 18. The mouth portion 18 of the container body 12 is sealed by a cap 19, and the inside is sealed.

An adsorbent (not shown) such as activated carbon is housed inside the container body 12. The recovered gas is adsorbed by the adsorbent. Before the start of the gas recovery operation, the inside of the container body 12 is depressurized to a vacuum level (for example, about 0 to 0.095 MPa as an absolute pressure).

A pair of hooking portions 20 are provided on the shoulder portion 16 of the container body 12. The hook portion 20 has a substantially semicircular plate shape when viewed from the side, and a mounting hole 22 is formed in the center. One hook portion 20 is provided on each side of the mouth portion 18 with the mouth portion 18 interposed therebetween. Two band members 24, which serve as handles during transportation, are attached to each of the hooking portions 20. Each band member 24 is inserted into the mounting hole 22, and a thin rod 26 longer than the diameter of the mounting hole 22 is fixed to the tip thereof, and the thin rod 26 prevents the band member 24 from coming off the mounting hole 22. The main body mounting portion 42 of the holding member 40, which will be described later, is also mounted on the hooking portion 20.

A connecting member 30 is provided on the shoulder portion 16 of the container body 12. As shown in FIG. 3, a pair of connecting members 30 are arranged at a position symmetrical with respect to the center of the container body 12 in a plan view. The configuration of the pair of connecting members 30 is the same.

The connecting member 30 has an upright portion 32 and an extension portion 34. The upright portion 32 is provided so as to stand up from the shoulder portion 16, and has a base portion 32A fixed to the shoulder portion 16 and a tubular rotating portion 32B mounted coaxially with the base portion 32A on the base portion 32A. .. The rotating portion 32B is rotatably attached to the base portion 32A around the pipe axis. A flow path 31A communicating with the inside of the container body 12 is formed in the base portion 32A and the rotating portion 32B.

The extending portion 34 has a bent portion 34A and a valve portion 34B. The bent portion 34A is formed integrally with the rotating portion 32B, has a tubular shape bent by 90 ° from the upper end of the rotating portion 32B, and has a flow path 31B formed therein. The valve portion 34B has a tubular shape coaxially extending from the tip of the bent portion 34A, and a flow path 31C is formed therein. A connection opening 36, which is an opening end of the flow path 31C, is formed at the tip of the valve portion 34B. The flow path 31A, the flow path 31B, and the flow path 31C form a continuous communication passage 31 that communicates the inside and outside of the container body 12. The valve portion 34B is provided with an on-off valve 35. The opening / closing valve 35 allows the communication passage 31 to be opened / closed.

The extending portion 34 of the connecting member 30 rotates in conjunction with the standing portion 32 while the connecting opening 36 draws an arc as the rotating portion 32B rotates around the pipe axis. The position where the extending portion 34 of the connecting member 30 is arranged along the shoulder portion 16 is defined as the storage position P1 of the connecting member 30 (see FIGS. 2 and 3). In this storage position P1, the connection opening 36 is arranged radially inside the side surface portion 14 in a plan view. Further, a position where the connection opening 36 is farther from the outer surface of the shoulder portion 16 than when it is arranged at the storage position P1, for example, in the present embodiment, as shown by a two-dot chain line in FIG. 3, the storage positions P1 to 90 The position rotated by ° is defined as the used position P2 of the connecting member 30. At the use position P2, the connection opening 36 is arranged radially outside the side surface portion 14 in a plan view.

A closing plug 38 is attached to the connection opening 36 when not in use. As shown in FIG. 4, the closing plug 38 has a cylindrical insertion cylinder portion 38A and a flange portion 38B formed at one end of the insertion cylinder portion 38A having a diameter larger than that of the insertion cylinder portion 38A. .. A part of the insertion column 38A is inserted into the connection opening 36 to close the connection opening 36. As a result, even if the opening / closing valve 35 is inadvertently opened when not in use, it is possible to prevent the inflow of air into the container body 12. The closing plug 38 is attached to the container body 12 by a holding member 40.

As shown in FIG. 4, the holding member 40 has a main body mounting portion 42, a connecting portion 44, and a plug mounting portion 46. The main body mounting portion 42 has a circular ring 42A, a string fixing portion 42B integrally formed with the circular ring 42A, and a long string 42C. Both ends of the string 42C are fixed to the string fixing portion 42B, and the string 42C has an annular shape. The string 42C is attached to the hooking portion 20 by inserting a part of the annular shape into the mounting hole 22 of the hooking portion 20 and passing a portion that is not inserted into the hooking portion 20 through the inserting portion of the string 42C.

The connecting portion 44 has a spring portion 44A and a ring portion 44B formed at one end of the spring portion 44A. A plug mounting portion 46 is formed at the other end of the spring portion 44A. The spring portion 44A has a so-called curl cord shape in which an elongated resin member is spirally wound, and is expandable and contractible. When no force is applied to the spring portion 44A, the adjacent winding portions are in close contact with each other and shortened. On the other hand, the spring portion 44A is in a state in which adjacent winding portions are separated from each other and stretched by applying a tensile force. In this stretched state, a restoring force that tries to restore the shortened state acts on the spring portion 44A. When the restoring force of the spring portion 44A becomes larger than the tensile force acting on the spring portion 44A, the spring portion 44A is shortened against the tensile force. In the present embodiment, the restoring force of the spring portion 44A is set to be larger than the force required to rotate the connecting member 30.

The ring portion 44B is formed in a ring shape by folding back an elongated resin member integrally formed with the spring portion 44A and extending once, and is locked by the stopper 44D, and is connected to the circular ring 42A. .. The plug mounting portion 46 is formed in a ring shape by folding back an elongated resin member that is integrally formed with the spring portion 44A and extending from the other end and is locked by the stopper 44E. The inner diameter of the plug mounting portion 46 is smaller than that of the flange portion 38B of the closing plug 38. The closing plug 38 is held at one end of the holding member 40 by frictional force when the insertion cylindrical portion 38A is inserted into the plug mounting portion 46.

A discharge connecting portion 28 is formed on the shoulder portion 16. The discharge connection portion 28 has a flow path (not shown) that communicates with the container body 12 inside, and is used when the recovered gas is discharged from the container body 12.

Next, the use of the gas recovery container 10 will be described.

In the gas recovery container 10 before use, as shown in FIG. 3, the connecting member 30 is arranged at the storage position P1, the closing plug 38 is inserted into the connecting opening 36, and the opening / closing valve 35 is closed.

First, after closing the meter cock G16, the worker removes the existing gas meter GM from the inlet G12 and the outlet G14. Then, a new gas meter GM is connected to the immigration G12 and the outlet G14. For the removed gas meter GM, attach caps to the gas inlet and outlet, respectively, and take it home after the work is completed.

Next, after attaching a new gas meter GM to the inlet pipe G12 and the outlet pipe G14, the plug G18B is removed from the cheese G18, and the first adapter 52 on one end side of the connection pipe 50 is connected to the gas discharge port G18A. A gas cutoff control device GC is connected to the connection pipe 50. Further, regarding the two connecting members 30 of the gas recovery container 10, the closing plug 38 is removed from the connecting opening 36, and the connecting member 30 is rotationally moved from the storage position P1 to the use position P2. A second adapter 54 on the other end side of the connection pipe 50 is attached to the connection opening 36 of one connection member 30 (see FIG. 5). As a result, the outlet pipe G14 and the gas recovery container 10 are connected via the gas cutoff control device GC. A pressure gauge 58 is attached to the connection opening 36 of the other connection member 30 via a hose 56. After attaching the pressure gauge 58, the on-off valve 35 of the connecting member 30 connected to the pressure gauge 58 is opened.

The worker opens the meter cock G16 and also opens the open / close valve 35 of the connecting member 30 to which the connecting pipe 50 is connected. As a result, the supply gas flows from the immigration 12 into the new gas meter GM, the residual air in the gas meter GM is pushed out by the supply gas, and is started to be collected in the gas recovery container 10 via the gas cutoff control device GC. After it is determined in the gas shutoff controller GC that the air in the new gas meter GM has been reliably purged and replaced with a supply gas (eg city gas, propane gas, etc.), the worker has two connecting members. The on-off valve 35 of 30 is closed, and the meter cock G16 is closed.

Next, the worker removes the first adapter 52 from the gas discharge port G18A, attaches the plug G18B, and closes the gas discharge port G18A. After that, the meter cock G16 is opened. Further, the second adapter 54 is removed from the connection opening 36, and the closing plug 38 is inserted into the connection opening 36 while extending the connecting portion 44 of the holding member 40 (see FIG. 6). As a result, the connection opening 36 is closed. Further, as the connecting portion 44 of the holding member 40 is shortened from the extended state by the restoring force, the connecting member 30 is rotationally moved from the used position P2 to the stored position P1 (see FIG. 3). Similarly, for the connecting member 30 to which the pressure gauge 58 is attached, the hose 56 is removed from the connecting opening 36, and the closing plug 38 is inserted into the connecting opening 36 while extending the connecting portion 44 of the holding member 40. As a result, the connection opening 36 is closed. Further, as the connecting portion 44 of the holding member 40 is shortened from the extended state by the restoring force, the connecting member 30 is rotationally moved from the used position P2 to the stored position P1 (see FIG. 3).

In the gas recovery container 10 of the present embodiment, the connecting member 30 is rotated and arranged at the use position P2, and the connection opening 36 is connected to the second adapter 54. Therefore, the connecting member 30 is arranged at the storage position P1. The workability of the connection is improved compared to when it is.

By inserting the closing plug 38 into the connection opening 36 when the gas recovery operation is not performed, it is possible to prevent the inflow of air into the container body 12 even if the opening / closing valve 35 is inadvertently opened. ..

Further, since the closing plug 38 is inserted into the connecting opening 36 and the connecting member 30 is held at the storage position P1 by the holding member 40 via the closing plug 38, the connecting member 30 is carelessly held at the storage position P1 during transportation. Can be prevented from rotating and coming into contact with another gas recovery container 10 or another member for transportation to cause damage. Further, since the connecting member 30 is arranged radially inside the side surface portion 14 in the plan view in the state of being arranged at the storage position P1, damage to the connecting member 30 during transportation can be further suppressed.

Further, during the gas recovery work, the closing plug 38 is removed from the connection opening 36, but since it is attached to the plug mounting portion 46 of the holding member 40, it does not separate from the container body 12 and is during the gas recovery work. It is possible to prevent the closing plug 38 from being lost.

Further, when the closing plug 38 is inserted into the connection opening 36 with the connecting member 30 arranged at the use position P2, the connecting portion 44 is shortened by the restoring force, and the connecting member 30 is automatically arranged at the storage position P1. NS. Therefore, it is not necessary to manually arrange the connecting member 30 at the storage position P1, and the time and effort for storage at the end of the work after the gas recovery is reduced, and the convenience is improved.

Further, since the hooking portion 20 in which the mounting hole 22 is formed is provided on the outer surface of the container main body 12, the holding member 40 can be easily attached to the container main body 12 by the string-shaped main body mounting portion 42 of the holding member 40. Can be installed. Further, the structure of the holding member 40 can be simplified.

Further, the closing plug 38 has an insertion cylinder portion 38A and a flange portion 38B formed at one end of the insertion cylinder portion 38A having a diameter larger than that of the insertion cylinder portion 38A. Therefore, by making the inner diameter of the plug mounting portion 46 smaller than that of the flange portion 38B, the insertion cylindrical portion 38A can be easily attached to the holding member 40 by inserting it into the plug mounting portion 46, and the holding member 40 can be easily attached. The configuration of is also simplified.

Although the embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above embodiments. Various changes or improvements can be made to each of the above embodiments without departing from the gist of the invention, and the modified or improved forms are also included in the technical scope of the present invention.

For example, the connecting portion 44 of the holding member 40 can be formed of an elastically deformable rubber or metal spring. Further, the connecting portion 44 does not necessarily have to be elastically deformable, and the closing plug 38 may be inserted into the connecting opening 36 of the connecting member 30 that has been manually moved to the storage position P1.

Further, in the present embodiment, two (pair) connecting members 30 are formed on the shoulder portion 16 of the container body 12, but only one or three or more may be formed.

Further, in the present embodiment, the case where the gas recovery container 10 is used at the time of exchanging the gas meter GM has been described, but the present invention is not limited to this. For example, it may be used at the time of new installation of the gas meter GM, or at the time of replacement of other members such as the immigration pipe G12, the outlet pipe G14, and the buried pipe buried in the ground, and at the time of new installation.

10 Gas recovery container, 12 Container body, 14 Side part, 16 Shoulder part 20 Hook part, 30 Connection member, 31 consecutive passages, 32 Standing part, 34 Extension part 35 Open / close valve, 36 Connection opening 38 Closing plug (closing cap) ), 38A insertion cylinder part, 38B flange part 40 holding member, 42 main body mounting part, 44 connecting part,
46 Plug mounting part (cap mounting part)
P1 storage position, P2 usage position

Claims (6)

With the container body
A communication passage that communicates with the inside of the container body is formed, and a standing portion that is erected so as to protrude from the container body and a standing portion that bends and extends from the tip of the standing portion, and the communication passage and others. It has an extension portion in which a connection opening with a member is formed, and the connection opening is more than when the extension portion is arranged at a storage position along the outer surface of the container body and the storage position. A connecting member having a valve that can be moved to a position of use away from the outer surface of the main body and can open and close the communication passage.
A closing cap that is inserted into the connection opening and closes the connection opening,
The closing cap has a plug mounting portion attached to the closing cap, a main body mounting portion attached to the container main body, and a connecting portion for connecting the plug mounting portion and the main body mounting portion, and the closing cap is said to have the same. A holding member that holds the connecting member in the storage position via the closing cap while being inserted into the connecting opening.
Gas recovery container equipped with. The container body has a cylindrical side surface portion and a shoulder portion that continuously extends inward in the radial direction from the upper end of the side surface portion and reduces the diameter of the opening of the side surface portion.
The first aspect of the present invention, wherein the upright portion is formed on the shoulder portion, and the connecting member can rotate around the upright portion and move between the storage position and the use position. Gas recovery container. The gas recovery container according to claim 2, wherein the connecting member is arranged in the storage position, and the connecting opening is arranged radially inside the side surface portion in a plan view. The connecting portion is made expandable by elastic deformation, and when the closing cap is inserted into the connecting opening while the connecting member is arranged at the used position, the extension is shortened by the restoring force of the connecting portion. The gas recovery container according to any one of claims 1 to 3, which is arranged at a storage position. Claims 1 to 4, wherein a hook portion having a mounting hole formed is formed on the outer surface of the container body, and the main body mounting portion is formed into a string shape, inserted into the mounting hole, and mounted on the hook portion. The gas recovery container according to any one item. The closing cap has an insertion cylinder portion to be inserted into the connection opening, and a flange portion formed at one end of the insertion cylinder portion having a diameter larger than that of the insertion cylinder portion.
The plug mounting portion has an annular shape having an inner diameter smaller than that of the flange portion, and is mounted on the closing cap with the insertion column portion inserted, according to any one of claims 1 to 5. The described gas recovery container.

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