JP2016161092A - Embedded gas plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embedded gas plug capable of regulating a turning range of a pipeline connection cylindrical part of a pipeline joint, without increasing the number of components, and without preparing a cutout or the like for turning the pipeline joint on the peripheral wall or bottom wall of a casing.SOLUTION: A gas plug body 2 comprises a gas outflow cylindrical part 2a and a gas inflow cylindrical part 2b so as to be formed into a substantially L shape, and a pipeline joint 22 comprises a turning cylindrical part 22a and a pipeline connection cylindrical part 22b so as to be formed into a substantially L shape. The gas outflow cylindrical part 2a is attached to a bottom wall 20a without a gap by a gas plug attachment part 24, and a turning cylindrical part 22a is turnably connected to the gas inflow cylindrical part 2b at a place outside the bottom wall 20a of a casing 20. The pipeline connection cylindrical part 22b, when turning with a turning cylindrical part 22a as a turning axis, contacts with the bottom surface 20a of the casing 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a buried type gas stopper that is buried in a wall plate or a floor plate.

As an embedded type gas stopper to be embedded under the wall or under the floor, the one disclosed in Utility Model Registration No. 2557504 (Patent Document 1) has been devised.
In this case, as shown in FIG. 6, the casing (30) containing the gas plug main body (3) is dropped into the gas plug mounting hole (40) opened in the floor plate (4) and fixed. The floor plate (4) is sandwiched from the front and back by the flange (31) projecting from the upper open end of the casing (30) and the attachment plate (32) attached to the back surface of the floor plate (4). By tightening the inserted and screwed fastening screws (36), the casing (30) is fixed by clamping the floor plate (4) from the front and back with the flange (31) and the attachment plate (32). .

  The tightening screw (36) with the attachment plate (32) is inserted in advance in each position facing the flange (31), and when the casing (30) is dropped into the gas plug mounting hole (40) In addition, an escape hole (33) through which the shaft portion of the tightening screw (36) and the attachment plate (32) can be inserted at the same time is provided on the peripheral wall of the casing (30) so that the attachment plate (32) does not get in the way. Formed in position.

  In this type of buried gas plug, the existing gas pipe (41) under the floor is drawn into the room from the gas plug mounting hole (40) opened in the floor plate (4), and this is inserted into the casing (30). It connects with the pipe connection part (34) of the gas plug main body (3) which is being fixed in the room, and then the casing (30) is pushed into the gas plug mounting hole (40) together with the gas pipe (41). At this time, the flexible pipe as the gas pipe (41) is stiff and unintentional force is applied to the casing (30), so the workability is poor, and the flange part (31) of the casing (30) is attached to the gas plug. It is difficult to lock around the hole (40).

In order to eliminate this inconvenience, as disclosed in Japanese Patent Application Laid-Open No. 2007-24284 (Patent Document 2), the gas stopper main body includes a gas outlet cylinder portion having a plug portion for socket connection, and A rotating cylinder part that is formed in a substantially L shape from the orthogonal gas inflow cylinder part, and is connected to a gas pipe (flexible pipe) so as to be rotatable with respect to the gas inflow cylinder part; It is formed in a substantially L-shape from a pipe connection cylinder part that is orthogonal to this and to which a flexible pipe is connected, and the rotation cylinder part of the pipe joint is in a predetermined direction and angle with respect to the gas inflow cylinder part of the gas plug body. There is a configuration in which the pipe connection cylinder portion is made to rotate and correspond according to the position and orientation of the flexible pipe by making it rotatable.
If this structure is used, even if the flexible pipe is strong, the casing with the gas plug is dropped into the gas plug mounting hole provided in the wall plate or floor plate together with the flexible tube and fixed easily. be able to.

Utility Model Registration No. 2557504 JP 2007-24284 A

However, as described above, in the case where the pipe joint is rotatable with respect to the gas plug body, when the pipe joint is freely rotated with respect to the gas plug body, the flexible pipe is connected. In this state, there is a problem that the pipe connecting cylinder portion rotates more than necessary, and it is difficult to accommodate the casing together with the flexible pipe in the gas stopper mounting hole.
Therefore, it is conceivable to provide a rotation restricting means that restricts the rotation range of the pipe joint to a certain range. However, if a separate part for restricting the rotation is provided in the gas plug body, the number of parts increases. In addition to this, there is a problem that the structure becomes complicated.
If the casing has a notch that corresponds to the pivoting range of the pipe connection cylinder, when the casing is installed on the wallboard or floorboard, cold air behind the wallboard or floorboard enters the room through the notch. A problem arises.

The present invention was devised to solve the above problems, and "a casing to be dropped into a gas stopper mounting hole formed on a wall plate or a floor plate,
A gas stopper main body attached so that the gas outflow tube portion protrudes into the casing;
In the buried gas plug having a pipe joint composed of a rotation cylinder part rotatably connected to the gas inflow cylinder part of the gas stopper body and a pipe connection cylinder part to which a gas pipe is connected,
It is possible to regulate the rotation range of the pipe connecting tube portion of the pipe joint without increasing the number of parts and without opening a notch or the like for rotating the pipe joint on the peripheral wall or bottom wall of the casing. This is the issue.

The buried gas plug of the present invention taken to solve the above-mentioned problem is as follows: "The gas plug main body is formed in a substantially L shape in which the gas inflow cylinder part is orthogonal to the gas outflow cylinder part,
The pipe joint is formed in a substantially L shape in which the pipe connecting cylinder part is orthogonal to the rotating cylinder part,
In the bottom wall of the casing, a gas plug insertion hole is formed for allowing the gas outflow tube portion to be inserted,
A gas stopper mounting portion for attaching the gas stopper body to the bottom wall is provided so as to close a gap between the gas outlet tube portion and the gas stopper insertion hole,
The rotating cylinder part of the pipe joint is rotatably connected to the gas inflow cylinder part of the gas plug body outside the bottom wall of the casing,
When the turning member is turned by a predetermined angle, the pipe connecting tube portion is set so as to come into contact with the bottom wall of the casing.

The technical means operates as follows.
The rotating cylinder part of the pipe joint is pivotally connected to the gas inlet cylinder part of the gas stopper body, and then the gas outlet cylinder part projects into the casing from the outside of the bottom wall of the casing through the gas stopper insertion hole. And fix it to the bottom wall using the gas stopper mounting part. At this time, since the gap between the gas outflow tube portion and the gas plug insertion hole is closed by the gas plug attachment portion, ventilation from the gas plug insertion hole to the room is blocked by the gas plug attachment portion.

When the gas plug main body is attached to the casing in the above manner, the gas outflow tube portion protrudes into the casing, and the gas inflow tube portion and the pipe joint connected thereto are located outside the bottom wall of the casing. Then, from the gas plug mounting hole opened in the wall plate or floor plate, the gas pipe arranged in advance on the back side is drawn into the room and connected to the pipe connecting tube, and then the casing is connected to the gas pipe together with the gas pipe. Drop it into the mounting hole.
At this time, if the gas pipe is stiff and the force from the gas pipe side acts on the pipe joint, the pipe joint uses the gas inflow cylinder as the rotation axis, and the gas pipe installation position and the rotation direction due to the elastic force In accordance with the above, the pipe connecting tube portion can be rotated by a predetermined angle in a predetermined direction.
In addition, when the pipe connection cylinder part is rotated by a predetermined angle, the pipe connection cylinder part comes into contact with the bottom wall of the casing, and thus further rotation is prevented. That is, the bottom wall of the casing functions as a rotation restricting means.

In the above buried type gas plug, “the rotation tube portion of the pipe joint and the gas inflow tube portion of the gas plug body cannot be separated within the rotation restriction range of the pipe connection tube portion, and the rotation of the pipe connection tube portion It is desirable to be separable when turning out of regulation.
When the gas plug main body to which the pipe joint is connected is fixed to the casing, the rotation of the pipe connecting tube portion of the pipe joint is restricted by the bottom wall of the casing. The pipe joint cannot be separated from the gas plug body within this rotation regulation range. And if a casing is removed from a gas stopper main body and rotation restrictions are cancelled | released, a piping joint will become rotatable outside a rotation restriction | limiting range, and can be isolate | separated from a gas stopper main body.

In the buried gas plug, “a male screw part is partially provided on one of the connection peripheral surfaces of the rotating cylinder part and the gas inflow cylinder part, and the male screw part is provided on the other. It is desirable that the female screw portion that can be engaged is partially provided, and the male screw portion and the female screw portion are in a non-threaded state when the connection between the rotating cylinder portion and the gas inflow cylinder portion is completed. .
The rotating cylinder part and the gas inflow cylinder part are connected by screwing a male screw part and a female screw part provided on each connection peripheral surface, and the male screw part and the female screw part are not screwed together. When the state is reached, the pipe joint is rotatable with respect to the gas plug body. If the gas stopper main body is attached to the casing in this state, the rotation of the pipe connecting tube portion of the pipe joint is restricted, so that the male screw portion and the female screw portion cannot be returned to the screwed state and cannot be separated. . If the gas plug main body is removed from the casing, the pipe connecting tube portion can be rotated 360 degrees, so that the male screw portion and the female screw portion can be returned to the screwed state, and the screwing is released. By turning, the gas plug body and the pipe joint can be separated.

Further, in the buried gas plug, “an engagement convex portion is provided on either one of the connection peripheral surfaces of the rotating cylinder portion and the gas inflow cylinder portion,
On the other side, an engagement recess is formed so that the engagement protrusion can be engaged in the circumferential direction, and the engagement recess is movable in the circumferential direction. Is formed so as to communicate with the engaging groove.
Within the rotation regulation range of the pipe connection cylinder part, the engagement convex part fits into the annular recess, and outside the rotation regulation range of the pipe connection cylinder part, the engagement projection part is an engagement groove. It may be set so that it can be engaged.
The engagement convex part provided on one of the connection peripheral surfaces of each of the rotating cylindrical part and the gas inflow cylindrical part is inserted from the open end of the engaging concave groove provided on either one to the back, and engaged. When the convex part reaches the annular concave part, the rotating cylinder part and the gas inflow cylinder part are connected to be rotatable. In this state, the gas stopper body is attached to the casing. As a result, the rotation of the pipe connecting cylinder part is restricted, and the engagement convex part and the engagement concave groove are in the non-engagement state within this rotation restriction range, and the gas plug body and the pipe joint cannot be separated. . Then, by removing the gas plug main body from the casing and rotating the pipe connecting tube portion outside the rotation regulation range, the engaging convex portion can be engaged with the engaging concave groove, and in this state, the piping If the joint is pulled away from the gas plug body, the two can be separated.

Since the gas plug insertion hole formed in the bottom wall of the casing is configured to be blocked by the gas outflow tube portion of the gas plug main body and the gas plug mounting portion, the cold air on the back side of the bottom wall from the gas plug insertion hole enters the room. There is no invasion. Therefore, there is no inconvenience of dropping a small object or the like from the gap between the gas plug main body and the gas plug insertion hole to the back side of the casing without lowering the room temperature when using the buried gas plug in winter. Absent.
Also, when the gas pipe is pushed into the back side of the wall or floor board from the hole for mounting the gas plug, chips and dust generated during construction will not enter the casing. Can prevent construction failure.

  When the gas pipe is a stiff flexible pipe, when the gas pipe is pushed into the gas stopper mounting hole, the force from the gas pipe side acts on the pipe connection tube of the pipe joint depending on the position and orientation of the gas pipe. However, since the pipe connecting cylinder part can be rotated by a predetermined angle in the predetermined direction with the gas inflow cylinder part of the gas plug main body attached to the casing as a rotation axis, the casing can be used for attaching the gas plug. The work to be accommodated in the hole becomes easy, and there is no inconvenience that the gas pipe is forcibly bent and the connection portion is loosened or detached when the gas pipe is pushed into the gas stopper mounting hole. Further, the structure using the bottom wall of the casing as a rotation restricting means for preventing the inconvenience that the pipe connecting cylinder portion rotates more than necessary with respect to the gas plug main body with the gas pipe connected. Therefore, an embedded gas plug with a rotation restricting means can be manufactured at low cost without requiring any special component or special structure.

  In addition, when the gas plug body is attached to the casing, the pipe joint cannot be separated from the gas plug body. Since it does not fall off from the gas plug body, safety can be ensured. And if a casing is removed from a gas stopper main body, since a gas stopper main body can be removed from a piping joint, the overflow prevention valve provided in the gas stopper main body can be exchanged or adjusted.

It is sectional drawing which shows the attachment state of the buried type gas stopper in the 1st embodiment of this invention. It is a bottom view of the buried type gas stopper in the 1st embodiment of the present invention. It is explanatory drawing which shows the attachment state of the buried type gas stopper in the 1st embodiment of this invention. It is sectional drawing which shows the connection aspect of the gas stopper main body and piping joint in the buried type gas stopper in 2nd Embodiment of this invention. It is sectional drawing which shows the connection aspect of the gas stopper main body and piping joint in the buried type gas stopper in 3rd Embodiment of this invention. It is sectional drawing which shows the attachment state of the conventional buried type gas stopper.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the gas stopper employed in the first embodiment includes a gas outflow tube portion (2a) having a plug connecting portion (23) for connecting a socket and a gas inflow tube portion communicating at right angles thereto. (2b) and a gas stopper main body (2) formed in a substantially L shape, a rotating cylinder part (22a) rotatably connected to the gas inflow cylinder part (2b), and a right angle thereto It consists of a pipe joint (22) formed in a substantially L shape with a pipe connection cylinder part (22b) in communication.

  As shown in FIG. 2, a gas stopper mounting portion (24) in which two screw holes (24a) are formed protrudes at a predetermined position on the peripheral surface of the gas outflow tube portion (2a), and the casing (20) As shown in FIG. 1, the bottom wall (20a) of the gas pipe has a gas plug insertion hole (20b) of a size that allows the gas outflow tube portion (2a) downstream from the gas plug mounting portion (24) to be inserted. A screw insertion hole (not shown) is formed at a location corresponding to the screw hole (24a).

  In order to fix the gas plug consisting of the gas plug main body (2) and the pipe joint (22) to the casing (20), the gas outflow tube (2a) is inserted into the gas plug insertion hole (20b) and the bottom wall (20a). The plug part (23) is inserted into the casing (20) by inserting from the back side. Then, the gas stopper mounting portion (24) is brought into contact with the back surface of the bottom wall (20a) so that the screw hole (24a) corresponds to the screw insertion hole provided in the bottom wall (20a) of the casing (20). Then, the fixing screw (241) is screwed into the screw hole (24a) from the surface of the bottom wall (20a). The gas plug insertion hole (20b) is set to a size that allows the gas outlet tube portion (2a) downstream of the gas plug mounting portion (24) to be inserted, and the gas plug insertion hole (20b) and the gas plug insertion hole (20b). Since the gas stopper mounting portion (24) is attached to the back surface of the bottom wall (20a) so as to close the space between the peripheral surface of the outflow cylinder portion (2a), the bottom wall of the casing (20) Ventilation from (20a) is securely blocked.

Due to the mounting mode described above, the gas outflow tube portion (2a) of the gas plug body (2) protrudes into the casing (20), the gas inflow tube portion (2b) protrudes to the back side of the bottom wall (20a) of the casing, and the casing The rotating cylinder part (22a) of the pipe joint (22) is rotatably connected to the back side of the bottom wall (20a) of the pipe.
By rotating the rotating cylinder part (22a) with respect to the gas inflow cylinder part (2b), the pipe connecting cylinder part (22b) can be rotated left and right from the hanging position shown in the center of FIG. As indicated by the two-dot chain line in the figure, the rotation is prevented when it contacts the bottom wall (20a) of the casing (20). That is, since the bottom wall (20a) of the casing (20) functions as a rotation restricting means for restricting the rotation range of the pipe connecting tube portion (22b), parts for restricting the rotation are separately provided. Since there is no need to provide it and it is not necessary to complicate the structure, a gas stopper with a rotation restricting means can be manufactured at low cost.

  In order to connect the gas pipe (41) to the gas plug attached to the casing (20), the gas pipe mounting hole (40) opened by a hole saw at a predetermined position of the floor plate (4) is arranged below the floor in advance. The installed gas pipe (41) is pulled out into the room, and is connected to the pipe connecting cylinder (22b) of the pipe joint (22) in the room.

Next, the gas pipe (41) is pushed back to the back side of the gas plug mounting hole (40) and the casing (20) is mounted in the gas plug mounting hole (40) of the floor plate (4). When a flexible pipe is used as the gas pipe (41), an inadvertent force acts on the pipe joint (22) from the gas pipe (41) side. This can be dealt with by rotating the connecting cylinder part (22b) by a predetermined angle in a predetermined direction with the rotating cylinder part (22a) as a rotation axis.
The pipe connecting tube portion (22b) does not rotate 360 degrees about the rotating tube portion (22a) as a rotating shaft, and as described above, the rotation is performed on the bottom wall (20a) of the casing (20). Therefore, the movement of the gas pipe (41) connected thereto is also restricted. As a result, when the gas pipe (41) is pushed into the back side of the floor plate (4) from the gas stopper mounting hole (40), the gas pipe (41) is rotated more than necessary, so that the pushing operation is difficult. Does not occur.

The casing (20) is a substantially cylindrical cylindrical body that is open upward and can be dropped into a gas stopper mounting hole (40) formed in the floor plate (4), and both side walls facing each other on the peripheral surface thereof In addition, as shown in FIG. 2, plane portions (25) and (25) are formed. In addition, a flange portion (21) having a substantially square outer shape to be engaged with the peripheral edge of the gas stopper mounting hole (40) protrudes in four directions on the upper open end edge of the casing (20).
Screw insertion holes (26) and (26) are respectively formed in the flange portions (21) at positions following the flat portions (25) and (25).

  As shown in FIG. 3, a substantially L-shaped attachment fitting (1) is provided on the screw shaft of the tightening screw (16) inserted through the screw insertion hole (26), and a nut fitting is provided below the attachment fitting (1). (13) is screwed, and by tightening the tightening screw (16), the attachment bracket (1) is pushed up by the nut fitting (13), and the attachment screw is installed in the final tightened state of the tightening screw (16). By pressing the floor plate (4) from the front and back with the metal fitting (1) and the collar (21), the casing (20) is fixed in a state of being dropped into the gas plug mounting hole (40).

  The protruding direction of the gas inflow tube portion (2b) relative to the gas outflow tube portion (2a) of the gas plug body (2) is set to a direction 90 degrees away from the formation position of the flat portion (25) of the casing (20). If this is done, the rotation of the pipe connection cylinder part (22b) of the pipe joint (22) connected to the gas inflow cylinder part (2b) There is no interference with the fitting (1) and nut fitting (13). In other words, the rotating pipe connection cylinder (22b) hits the fitting (1) and nut fitting (13) provided on the tightening screw (16), and the fitting (1) and nut fitting (13) Since there is no inconvenience that the posture changes or shifts, the construction of the casing (20) in the gas plug mounting hole (40) of the floor board (4) is not affected.

Thereafter, as shown in FIG. 1, after the socket detachable unit (15) is accommodated in the casing (20), the surface of the flange (21) of the casing (20) is entirely surrounded from above. Then, the decorative board (42) is attached to the surface of the floor board (4), and the installation of the buried gas plug to the floor board (4) is completed.
At the center of the decorative plate (42), a window (43) having a size that exposes the open / close lid (15a) of the detachable unit (15) is opened.

  Since the peripheral wall and the bottom wall (20a) of the casing (20) according to the embodiment of the present invention are configured such that no relief holes, notches, gaps, or the like are formed, the socket is connected to the plug cylinder (23). At this time, even if the open / close lid (15a) is opened, the cold air below the floor board (4) flows into the room through the casing (20) from the window (43) of the decorative board (42), There is no inconvenience of lowering the temperature or dropping small articles to the back side of the casing. In addition, when the gas pipe (41) is pushed into the back side of the floor plate (4) from the gas plug mounting hole (40), chips and dust generated when the gas plug mounting hole (40) is opened with a hole saw. There is no intrusion into the casing (20), and intrusion of these chips and dust does not cause poor construction.

  Further, in the above embodiment, the rotating cylinder portion (22a) is connected to the gas inflow cylinder portion (2b) by the C ring (10) so as to be rotatable and prevented from being detached. In the second embodiment shown in FIG. 4, the female threaded portion (11) can be screwed into the rotating cylindrical portion (22a) and the female threaded portion (2) can be screwed into the female threaded portion (11). Each of the male screw portions (12) is formed, and the female screw portion (11) of the rotating cylinder portion (22a) is tightened to the male screw portion (12) of the gas inflow cylinder portion (2b) to the final tightened state. Then, the female screw part (11) reaches the non-formation area of the male screw part (12), the male screw part (12) reaches the non-formation area of the male screw part (11), and both are in a non-threaded state. Is set to In this case, when the female screw portion (11) and the male screw portion (12) reach the respective non-forming areas, the rotary cylinder portion (22a) rotates relative to the gas inflow cylinder portion (2b). It is free and it will be in a retaining state.

In order to remove the pipe joint (22) of the second embodiment from the gas plug main body (1), the pipe joint (22) is pulled in the direction in which the pipe joint (22) is pulled out, and the female thread part ( 11) may be forcibly screwed into the male screw part (12) of the gas inflow cylinder part (2b), and the pipe connection cylinder part (22b) may be rotated in the direction in which the screwing is released. With the plug body (1) fixed to the casing (20), the pipe connection cylinder (22b) abuts the bottom wall (20a) of the casing (20), so the pipe connection cylinder (22b) must be rotated. I can't.
In other words, in a state where the gas plug is attached to the casing (20), the pipe connection tube portion (22b) is located within the rotation restriction range, so the pipe joint (22) is connected to the gas plug main body (2). However, it is not disengaged. Therefore, the pipe joint (22) is not accidentally dropped from the gas plug body (2) during the construction of the gas plug fixed to the casing (20).
If the fixing screw (241) is removed and the casing (20) is removed from the gas plug body (2), the pipe fitting (22) is released by rotating the pipe joint (22) to release the screw. Since it can be removed from the joint (22), the overflow prevention valve of the gas plug body (2) can be replaced or adjusted in the manufacturing stage such as gas plug assembly.

Further, in the third embodiment shown in FIG. 5, an engaging convex portion (17) is provided on the outer peripheral surface of the gas inflow cylinder portion (2b), and the inner periphery of the rotating cylinder portion (22a). On the surface, the engagement convex part (17) can be inserted along the axis, and the engagement concave groove (27a) is opened to the open end of the rotating cylinder part (22a), and the engagement concave groove ( An annular recess (27b) is formed which communicates with 27a) and allows the engaging projection (17) to move in the circumferential direction.
The engaging groove (27a) is formed wider than the engaging protrusion (17) so that the engaging protrusion (17) can be easily inserted.

While inserting the engagement convex part (17) from the open end of the engagement concave groove (27a), the rotating cylinder part (22) of the pipe joint (22) is inserted into the gas inflow cylinder part (2b) of the gas plug body (2). 22a), when the connection completion state is reached, the engaging projection (17) reaches the annular recess (27b) formed at the back of the engaging recess (27a), and the rotating cylinder The part (22a) and the gas inflow tube (2b) are connected to be freely rotatable.
In this state, when the casing (20) is attached to the gas outflow tube portion (2a) of the gas plug body (2), the pipe connection tube portion (22b) rotates only within the rotation restriction range as described above. Engagement protrusions in the gas inflow cylinder (2b) so that the engagement protrusions (17) and the engagement grooves (27a) are in a disengaged state within the rotation restriction range. The formation position of (17) and the formation position of the engaging groove (27a) in the rotating cylinder portion (22a) are set.

  In this embodiment, before being attached to the casing (20), the gas outlet cylinder part (2a) of the gas plug body (2) or the pipe connection cylinder part (22b) of the pipe joint (22) is in the state shown in FIG. When the engagement projection (17) is rotated 180 degrees, the engagement projection (17) can be inserted into the engagement groove (27a) as shown by the two-dot chain line in FIG. In this state, the gas outflow tube portion (2a) or the pipe connection tube portion (22b) is rotated so that the posture shown in FIG. 1 is obtained. In the state, the casing (20) is attached to the gas outflow tube portion (2a). Then, the rotation of the pipe connecting tube portion (22b) is restricted to the range indicated by the arrow in FIG. 3, and the engaging convex portion (17) cannot correspond to the engaging concave groove (27a). Therefore, the rotating cylinder part (22a) is rotatable with respect to the gas inflow cylinder part (2b) and connected in a retaining state.

  In this embodiment as well, the casing (20) is removed, and the pipe connecting tube portion (22b) can be turned to the outside of the range of rotation restriction, and the engaging convex portion (17) is made into the engaging concave groove. If it corresponds to (27a), the gas inflow cylinder part (2b) can be extracted from the rotating cylinder part (22a), and the gas plug body (2) and the pipe joint (22) can be separated.

  In addition, in the said embodiment, although the installation structure of the floor board buried type gas stopper was demonstrated, it cannot be overemphasized that it can install in a wall board similarly.

(1) ............ Attachment bracket
(11) ・ ・ ・ ・ ・ ・ ・ ・ Attachment plate
(2) ... Gas plug body
(2a) ... Gas outflow tube
(2b) ... Gas inflow cylinder
(20) ... Case
(20a) .... Bottom wall
(20b) ・ ・ ・ ・ ・ ・ ・ Gas plug insertion hole
(22) ... Piping fittings
(22a) ・ ・ ・ ・ ・ ・ ・ Rotating tube
(22b) ・ ・ ・ ・ ・ ・ ・ Piping connection tube
(24) ... Gas stopper mounting part
(4) ... floor board
(40) ... Hole for mounting gas plug

Claims (4)

A casing to be dropped into a gas stopper mounting hole formed on the wall plate or floor plate,
A gas stopper main body attached so that the gas outflow tube portion protrudes into the casing;
In the buried type gas stopper having a pipe joint composed of a rotating cylinder part rotatably connected to a gas inflow cylinder part of the gas stopper main body and a pipe connecting cylinder part to which a gas pipe is connected,
The gas stopper main body is formed in a substantially L shape in which the gas inflow cylinder part is orthogonal to the gas outflow cylinder part,
The pipe joint is formed in a substantially L shape in which the pipe connecting cylinder part is orthogonal to the rotating cylinder part,
In the bottom wall of the casing, a gas plug insertion hole is formed for allowing the gas outflow tube portion to be inserted,
A gas stopper mounting portion for attaching the gas stopper body to the bottom wall is provided so as to close a gap between the gas outlet tube portion and the gas stopper insertion hole,
The rotating cylinder part of the pipe joint is rotatably connected to the gas inflow cylinder part of the gas plug body outside the bottom wall of the casing,
An embedded gas plug that is set so that the pipe connecting tube portion contacts the bottom wall of the casing when the rotating member is rotated by a predetermined angle.   2. The buried gas plug according to claim 1, wherein the rotation tube portion of the pipe joint and the gas inflow tube portion of the gas plug body are not separable within a rotation restriction range of the pipe connection tube portion. A buried gas plug that can be separated when the part is turned outside the restricted rotation range. 3. The embedded gas plug according to claim 2, wherein a male screw part is partially provided on one of the connection peripheral surfaces of each of the rotating cylinder part and the gas inflow cylinder part, and the male screw is provided on one of the other. A female screw part that can be engaged with the part is partially provided,
An embedded gas plug in which the male screw part and the female screw part are in a non-threaded state when the connection between the rotating cylinder part and the gas inflow cylinder part is completed. The embedded gas plug according to claim 2, wherein an engagement convex portion is provided on one of the connection peripheral surfaces of each of the rotating cylinder portion and the gas inflow cylinder portion,
On the other side, an engagement recess is formed so that the engagement protrusion can be engaged in the circumferential direction, and the engagement recess is movable in the circumferential direction. Is formed so as to communicate with the engaging groove.
Within the rotation regulation range of the pipe connection cylinder part, the engagement convex part fits into the annular recess, and outside the rotation regulation range of the pipe connection cylinder part, the engagement projection part is an engagement groove. An embedded gas stopper that is set so as to be engageable.

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