JP2838199B2 - Socket release mechanism and buried gas stopper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket release mechanism for releasing a socket connected to a gas plug buried in a wall or a floor, and a buried gas plug employing the socket release mechanism. It is about.

[0002]

2. Description of the Related Art As a buried gas stopper, there is one disclosed in Japanese Utility Model Laid-Open No. 4-8874. This one is
As shown in FIG. 13, a rectangular box-shaped casing (1) embedded and fixed to a wall (9) so as to be exposed on the indoor side thereof.
And a cylindrical gas stopper body (2) provided in the casing (1), and a socket provided in the casing (1) and detachably mounting the socket (8) with respect to the gas stopper body (2). An opening (11) for insertion, a socket release mechanism for releasing the socket (8) attached to the gas stopper body (2), and an opening (11)
And a lid (5) for opening and closing the cover.

[0003] The socket release mechanism is rotatably supported by a projection (111) provided on the bottom wall of the casing (1) and the tip of the projection (111).
Lever body (4) arranged so as to face the tip surface of (8)
And consisting of In this apparatus, when the lid (5) in the open state is pushed, one end of the lever (4) is pressed by the lid (5), and the lever (4) is rotated. By this rotation, the lever body (4) presses the distal end surface of the socket (8), and the socket (8) is unlocked.

In this case, the socket (8) immersed in the casing (1) is released by the pushing operation of the lid (5), so that the operation for this release is easy.

[0005]

However, in this conventional buried type gas plug, when the mounting position of the gas plug main body (2) is displaced in the direction along the bottom wall of the casing (1), the lever body (4) is displaced.
The relative positional relationship between the support position of the gas stopper and the gas stopper body (2) becomes inaccurate, and the release operation of the socket (8) tends to be defective.

The invention of Japanese Patent Application No. 8-74576 has already been filed as a buried gas stopper having a socket releasing mechanism which solves this problem. FIG. 14 shows the above-mentioned Japanese Patent Application No. 8-745.
It is the schematic perspective view which decomposed | disassembled the principal part of the buried type gas stopper which concerns on application of No. 76. The plug portion (21) protrudes coaxially from the cylindrical base portion (22) of the gas plug body (2), and an annular groove (26) is formed in the vicinity of the upper end of the base portion (22). Thus, a constricted portion is formed.

A resilient mounting rod (3) bent into an Ω shape is fitted in the annular groove (26), and both ends of the mounting rod (3) are in opposite directions. Bent to the shaft (3
1) (31) is formed. The annular groove (26) has a mounting rod
(3) A socket release mechanism (700) having a lever (4) rotatably supported by the socket (3) is mounted.

The lever (4), which is rotatably held by the mounting rod (3), has a function of removing the socket (8) from the plug (21). Are formed in a substantially U-shaped plane in which the base ends of a pair of first lever pieces (41) (41) are connected by connecting pieces (42). And the first lever piece
At (41) and (41), fulcrum portions (400) (400) supported by the shaft portions (31) and (31) of the mounting rod (3) are formed. Each fulcrum (400)
(400) is a hole (44) formed in the first lever piece (41).
The first first curved portion is formed by first and second curved portions (45) and (46) arranged in the width direction of the first lever piece (41) across the first curved portion.
(45) is curved toward the base portion (22), and the other second curved portion (46) is curved toward the opposite side. Also, the first lever piece (4
1) A connecting piece (42) connecting the base ends of (41) has a second lever piece (43) projecting to the opposite side to the first lever pieces (41) and (41).
Is provided.

In this structure, holes (44) and (44) formed in the first lever pieces (41) and (41) of the lever body (4) are provided with shaft portions (31) and (2) at both ends of the mounting rod (3). 31) (illustrated line in FIG. 14),
In this state, the arc-shaped curved part of the mounting rod (3) is
When fitted outside the annular groove (26) near the base end of the lever body (4)
Is attached to the gas stopper body (2) side. Then, in this mounted state, the second lever piece (4) of the lever body (4) is
When the lever body (4) is rotated about the shafts (31) and (31) of the mounting rod (3) by pushing the lever (3) in, the first lever piece
(41) The tip of (41) moves to the tip side of the plug (21), whereby the tip of the socket mounted on the plug (21) is pressed and the lock of both of them is released. And the socket is removed from the plug (21).

In this case, the mounting rod (3) and the lever body (4)
Since the socket release mechanism (700) consisting of the gas plug body (2) is mounted on the gas plug body (2), even if the mounting position of the gas plug body (2) is shifted in the direction along the bottom wall of the casing (1), the gas plug Body
The relative positional relationship between (2) and the lever body (4) does not change. Therefore, the socket (8) can be reliably removed by the lever body (4).

However, in this case, the mounting rod (3)
The arcuate curved part of the circular groove (2) near the upper end of the base part (22)
6), a special operation is required to position the lever body (4) supported by the mounting rod (3) at an appropriate position, which complicates the assembly work. There was a problem. Also, when an external force such as an impact is applied to the mounting portion of the socket release mechanism (700) during the product transaction process after assembly, the mounting rod (3) is attached to the base portion as the mounting portion.
There is a concern that the mounting position of the lever body (4) is shifted due to the circumferential rotation with respect to (22).

The invention according to claims 1 and 2 is a socket release mechanism.
The socket which facilitates the positioning of the socket release mechanism (700) when assembling the (700) to the gas stopper body (2), and prevents the socket release mechanism (700) after assembly from being displaced from an appropriate position. It is an object to provide a release mechanism. It is an object of the present invention to provide an embedded gas stopper provided with the socket releasing mechanism.

[0013]

Means for solving the above-mentioned problem according to the first aspect of the present invention is that a plug portion of a gas stopper body (2) is provided.
(21) is detachably connected to the socket (2)
1) A socket release mechanism for removing from a socket, wherein the socket release mechanism is externally fitted to a constricted portion formed in a columnar portion following the base end of the plug portion (21), and is located near the distal end of the mounted socket. A mounting rod (3), a lever body (4) rotatably supported by the mounting rod (3) such that one end of the mounting rod (3) comes into contact with and separate from the distal end surface of the socket, and the mounting rod (3). And a resilient projecting arm having a fitting portion that fits into a convex or concave portion provided on the constituent wall of the gas plug body (2).

According to the above means, the elastic protruding arm connected to the mounting rod (3) fits with the convex or concave portion provided on the component wall of the gas plug main body (2), and thereby, The rod (3) is prevented from rotating inside the annular groove (26) in the running direction of the annular groove (26). The means of the invention of claim 2 is:
"The mounting rod (3) includes a pair of shaft portions, both ends of which are linearly aligned in opposite directions.
(4) is a pair of lever pieces each rotatably supported by the pair of shaft portions and one end of which opposes the distal end surface of the socket, and an operating piece connected to the other end of the lever piece. The elastic protruding arm is made of an elastic wire, and both ends thereof are separately wound around the pair of shafts of the mounting rod (3), and the constituent wall of the gas stopper body (2) is provided in the middle thereof. And a curved portion as the fitting portion which is fitted to the convex portion provided on the elastic member. According to this, a curved portion formed at an intermediate portion of the elastic wire rod constituting the elastic projecting arm is provided. Gas tap body
(2), the mounting rod (3) is fixed to the gas stopper main body (2) via the elastic protruding arm.
The lever body (4) rotatably supported by (3) is also positioned at a predetermined position.

Means for solving the above problem according to a third aspect of the present invention include a casing (1) having an opening (11) embedded in a wall or a floor and having a socket inserted therein, and the casing (1). A gas stopper main body including a plug portion (21) housed therein and connected to the socket inserted from the opening portion (11), and a columnar portion connected to a base end of the plug portion (21). A mounting rod (3) which is externally fitted to the constricted portion and is located near the distal end of the socket in the mounted state; and A lever body (4) rotatably supported on the mounting rod (3), and a fitting part fitted to a convex part or a concave part provided on a component wall of the gas plug main body (2). And an elastic projecting arm having

[0016]

According to the first and second aspects of the present invention, when the fitting portion of the elastic protruding arm is fitted into the convex or concave portion of the constituent wall of the gas plug main body (2), the elastic protruding arm is interposed. Since the mounting rod (3) and the gas plug main body (2) are fixed in a detented state, the lever body (4) mounted on the mounting rod (3) can be easily positioned at an appropriate position. That is, it is possible to provide a socket releasing mechanism that can be easily positioned when assembled to the gas stopper main body (2).

Further, since the socket releasing mechanism having the mounting rod (3) and the lever body (4) is fixed to the gas stopper main body (2) by the elastic protruding arm, a process in which a product incorporating the same is traded. Therefore, even if an external force such as an impact acts on the mounting portion of the socket releasing mechanism, there is no fear that the socket releasing mechanism is shifted from an appropriate position. According to the third aspect of the present invention, it is possible to provide an embedded gas stopper in which the positioning of the socket releasing mechanism is easy during assembly.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 is an overall explanatory view of an embedded gas stopper according to an embodiment of the present invention, and FIG. 2 is a plan view of the embedded gas stopper of FIG. FIG. 3 is a sectional view taken along the line III-III of the buried gas stopper of FIG. 1, and FIG.
FIG. 5 is a sectional view taken along the line IV-IV of the embedded gas stopper of FIG. 1, and FIG. 5 is a plan view of a lid (5) of the embedded gas stopper of FIG.

[Regarding the Configuration of Each Part] As shown in FIG. 1, the buried type gas plug of this embodiment is provided with a rectangular opening (90) provided in a wall plate (91) on the indoor side of the wall (9). And a casing (1) embedded in the wall (9), and a gas stopper body (2) housed and fixed in the casing (1).

* Casing (1) * Casing (1) is composed of a wall plate (91) as shown in FIGS.
A rectangular frame plate (1b) contacting the periphery of the rectangular opening (90) in the room from the room side, and a rectangular decorative plate (1a) covering the entire frame plate (1b) from the room side, The gas plug body (2) is fixedly connected to a pair of upright plates (12) (12) protruding inward of the wall (9) from a pair of opposing sides of the inner peripheral edge of the frame plate (1b). And a rectangular dish-shaped bottom body (1c).

In the middle of the decorative plate (1a), a rectangular opening (11) is provided. The opening (11) is opened and closed by a lid (5) described later. A skirt portion (10) having a U-shaped cross section protruding from the vicinity of the periphery of the opening (11) is provided on the back surface of the decorative plate (1a). The space on the open side with respect to the cross section of the skirt portion (10) serves as a movement area (500) of the lid (5) when the lid lever (4) opens and closes.

A pair of upright plates (12) and (12) of the pair of upright plates (12) and (12) has an edge on the side of the bottom body (1c) on the pair of upright plates (12) and (12). One protruding piece (13) (13) is provided. Also, the bottom (1
A plurality of second protruding pieces (14) (14) parallel to the bottom wall of the bottom body (1c) are provided on the edge of the peripheral wall of c) on the side of the frame plate (1b).
The frame plate (1b) and the bottom body (1c) are integrated by screwing the first and second projecting pieces (13) and (14) together in a superposed state.

Also, a substantially L-shaped backing plate is in contact with the periphery of the rectangular opening (90) in the wall plate (91) from the inside of the wall (9).
(6) is provided, and the frame plate (1b) is screwed to the backing plate (6) with a pair of bolts (65) (65). As a result, the frame plate (1b) is fixed to the wall plate (91) with the wall plate (91) sandwiched between the frame plate (1b) and the backing plate (6).
Also, a plurality of engagement pieces (15) (15) that engage with the inner peripheral edge of the frame plate (1b) are protruded near the peripheral edge of the back surface of the decorative plate (1a),
By these engagement pieces (15) (15), the decorative plate (1a)
Fixed against.

The lid (5) is, as shown in FIGS.
A pair of arms (51) provided on both sides of one end in the longitudinal direction
(51) is configured to extend from the moving area (500) to a space outside the pair of opposing walls of the skirt (10). The arm portions (51) and (51) have a pair of shafts (52) and (5) fitted in a pair of long holes (100) formed in the opposing wall of the skirt portion (10).
2) is provided so as to be opposed to each other. That is, the shaft body (52) (52)
The skirt portion (10) is fitted into a pair of long holes (100) (100) which are long in a direction perpendicular to the decorative plate (1a).
Thus, the lid (5) is opened until the lid (5) is opened up to the upright posture with respect to the decorative plate (1a), and the lid (5) is maintained in the upright posture.
Can be moved into the wall (9).

The arm portions (51) and (51) are provided with a pair of convex portions (53) and (53) projecting from a surface opposite to the skirt portion (10). A spring (not shown) is provided between the projections (53) and (53) and the skirt (10), and the urging force of the spring causes the lid (5) to be in the upright posture and the decorative plate (1a). ), And the lid (5) is stabilized in each of a first state in which the lid (5) protrudes the most and a second state in which the lid (5) closes the opening (11).

Further, on the back surface of the lid (5), there is provided a piece (55) which stands upright and extends in a direction perpendicular to the longitudinal direction of the lid (5). ing. This part (5
The arrangement position of (5) is set so as to face the second lever piece (43) from the decorative plate (1a) side when the lid (5) is in the upright posture. * Gas plug body (2) * The gas plug body (2) consists of a cylindrical plug part (21) to which the socket (8) is connected, and a plug part connected to the base end of the plug part (21). (21) Larger diameter cylindrical base (22)
And a cylindrical portion (23) connected to the base portion (22) so that their axes are perpendicular to each other, and provided on the opposite side of the base portion (22) in the cylindrical portion (23). And a pipe connection part (24) serving as a gas inlet. The plug (21) and the base (22) have a built-in plug (27) which is opened and closed by attaching and detaching the socket (8).

An annular groove (26) (corresponding to the constricted portion according to the first aspect) is provided in the body portion of the base portion (22) in the circumferential direction thereof. The position of the annular groove (26) is near the end on the plug (21) side at the connection between the base (22) and the cylinder (23). The annular groove (26) serves as a housing for a mounting rod (3) described later. In addition, this gas stopper body (2)
The base part (22) and the cylindrical part (23) are screwed to the bottom wall of the bottom body (1c), and the plug part (21) and the base part (22)
The axis is arranged in a posture perpendicular to the decorative plate (1a) and the bottom wall. Further, the pipe connection part (24) is exposed to the outside from the bottom body (1c) through a cutout part (18) provided on the peripheral wall of the bottom body (1c). Further, the cylindrical portion (23) is provided with the skirt portion (1).
0) is inserted through a notch (not shown) provided on one of the opposing walls.

* Socket release mechanism (700) * The above-mentioned gas stopper main body (2) has a socket release for releasing the lock of the socket (8) attached to the plug portion (21) and removing it. Equipped with a mechanism (700). Here, FIG. 6 is a plan view of the plug portion (21) and the socket release mechanism (700) of the buried gas stopper of FIG. 1, and FIG. 7 is a plan view of the plug portion (21) and the socket release mechanism of FIG. (700) part V
8 is a plan view of the socket release mechanism (700) of FIG. 6, and FIG. 9 is a view showing the relationship between the socket release mechanism (700) and the gas stopper body (2) in an exploded state. FIG.

The socket release mechanism (700) has a planar shape of Ω.
A mounting rod (3) formed in a U-shape, an elastic protruding arm (7) for positioning the mounting rod (3) at a proper mounting position,
And a lever body (4) to be described later, which is rotatably supported by (3). An arcuately curved main body (39) of the mounting rod (3) is housed and held in the annular groove (26).
Both ends of the mounting rod (3) are a pair of shafts (31) (31) aligned in a straight line in opposite directions, and these shafts (31) (31) are It is configured to protrude from the base portion (22). These shaft portions (31) (31) serve as support portions for a lever body (4) described later. The mounting rod (3) is manufactured by bending an elastic metal rod into the Ω shape by bending.

The elastic protruding arm (7) is formed by bending an elastic metal wire as an elastic wire, and includes a lever body (described later).
The linear end portions (71) (71) abutting on the upper surface of the first lever pieces (41) (41) of (4) and the shaft portions (31) (3)
The coil portions (72) and (72) to be wound into the coil portion (1) and the coil portions (7
2) a U-shaped intermediate portion (73) connecting the (72) and extending toward the base portion (22) of the gas stopper main body (2). A curved portion (e.g., a fitting portion) that is fitted to a semi-cylindrical convex portion (220) protruding from an outer peripheral side surface of the base portion (22) at a central portion of a lower side (74) of the intermediate portion (73). 75) is formed. In this embodiment, a curved portion (75) which is fitted to the convex portion (220) formed on the base portion (22) is formed on the lower side (74). Alternatively, a concave portion may be formed in the base portion (22) and a protruding bent portion that fits into the concave portion may be formed in the lower side (74). Further, the curved portion corresponds to the fitting portion according to the first aspect.

The lever body (4) is made of metal and has a base portion.
A pair of first lever pieces arranged so as to sandwich the body of (22) and face the distal end surface of the socket (8) in the mounted state.
(41), (41), a connecting piece (42) for connecting the first lever pieces (41) and (41) at one end thereof, and a first piece from the connecting piece (42).
The second lever piece (4) projecting to the opposite side from the lever pieces (41) and (41)
3)

The connecting piece (42) of the first lever piece (41) (41)
A fulcrum (400) whose side end is supported by the shafts (31) and (31)
(400). Each fulcrum part (400) is located on the base part (22) side with respect to the hole part (44) provided in the end part, and is curved toward the bottom wall side of the bottom body (1c). ) And holes (44)
And a second curved portion (46) which is opposite to the base portion (22) and is curved toward the tip end of the plug portion (21). The shaft portion is formed by the first and second curved portions (45) and (46).
(31) is sandwiched. In this embodiment, the first lever piece (41) (41) corresponds to the lever piece described in claim 2, and the connecting piece (42) and the second lever piece (43) are described in claim 2. Corresponding to the operating piece.

Also, the first lever piece (41) (41) is in a position substantially parallel to the decorative plate (1a), and one of the first lever pieces (41) is provided on the cylindrical portion (23). It is configured to be in contact with the section (28). Next, the socket release mechanism (700) is
The work of assembling the buried gas cock including the work of assembling in (2) will be described. As shown in FIG.
Coil portions (72) and (72) formed near both ends of (7)
Each of the shaft portions (31) and (31) of (3) is separately fitted from the end. Next, in a state where the curved main body (39) of the mounting rod (3) is elastically deformed in the diameter contraction direction, the mounting rod (3) is moved between the first lever pieces (41) and (41) of the lever body (4). And the shafts (31) and (31) with the holes (44) and (44)
(See the imaginary line in FIG. 9). At this time, the linear ends (71) (71) of the elastic protruding arm (7) are
(4) The first lever piece (41) is brought into contact with the upper surface of the (41). Next, the mounting rod (3) is elastically fitted outside the annular groove (26) formed in the base portion (22) of the gas stopper body (2),
When the curved portion (75) formed at the intermediate portion (73) of the elastic protruding arm (7) is externally engaged with the convex portion (220) of the base portion (22), the convex portion of the base portion (22) is formed. The lever body (4) is naturally positioned at an appropriate position by the engagement between the part (220) and the curved part (75) of the elastic protruding arm (7). This allows the gas stopper body
(2) Positioning of the lever body (4) with respect to (2) can be easily performed.

Also, even if an external force such as an impact is applied to the gas stopper in the course of the transaction and the like, the inconvenience that the lever (4) and the like rotate from the proper position in the circumferential direction of the plug (21) is prevented. it can. Then, a pair of mounting flanges (221) and (221) protruding from the outer periphery of the lower end of the base portion (22) of the gas stopper body (2) to which the lever body (4) and the like are assembled (FIGS. 9, 4, and 10). When the fixing screws (79) and (79) are inserted into the through holes (222) of the base plate and the fixing screws (79) and (79) are screwed into the rectangular dish-shaped bottom body (1c), the bottom body (1 The gas stopper body (2) is fixed to 1c). Further, the second protruding pieces (14) (14) of the bottom body (1c) and the first protruding pieces (13) (13) of the frame plate (1b) are overlapped, and these are joined together by screws (78) (78)
Then, the decorative plate (1a) is attached to the frame plate (1b) by engaging the engaging pieces (15) and (15) of the decorative plate (1a) with the peripheral edge of the frame plate (1b). Once installed, the buried gas tap is complete.

[Removal of Socket (8)] FIG.
Is the socket release mechanism (70
It is an operation explanatory view of (0). First, to connect the socket (8) to the plug (21), open the lid (5) and open the opening (1).
Leave 1) open. In this state, socket (8)
Into the casing (1) through the opening (11),
(21). As a result, the socket (8) is locked with the plug (21) in a locked state. When the socket (8) is installed,
A shaft (not shown) in (8) is in an open state in which the plug (27) is pushed inward.

On the other hand, a socket mounted on the plug (21)
In order to remove (8), as shown in FIG. 10, the lid (5) in the above-mentioned upright posture is pressed toward the inside of the casing (1). As a result, the piece (55) of the lid (5) presses the second lever piece (43) opposed thereto, whereby the lever body (4) is rotated, and the first lever piece (41) is rotated. ) (41) pushes the release ring (81) (see FIG. 4) at the tip of the socket (8). Thus, the locked state of the socket (8) is released. After removing the released socket (8) from the inside of the casing (1), the cover (5) is closed to close the opening (11). Upon release, the release ring (81) is protruded toward the distal end by a spring built in the socket (8), whereby the socket (8) is plugged (21).
At the same time, the plug (27) is pushed by the spring (270) and moves, and the plug (21) is closed with the tip opening closed.

In this case, the lever body (4) is connected to the base part.
(22) and both ends are supported by the rod-shaped mounting rod (3) having the shaft portions (31) and (31), so that the configuration for supporting the lever body (4) is simple. Therefore, the entire socket release mechanism (700) is simplified. Even if the fixing position of the gas stopper body (2) with respect to the bottom body (1c) is shifted in the direction along the bottom wall of the bottom body (1c), the plug part (21) and the base part (22), and the lever body Since the relative positional relationship with the support position of (4) is unchanged, the socket releasing operation by the lever body (4) is good.

Further, since the mounting rod (3) is a Ω-shaped rod as a whole, the mounting rod (3) can be easily formed by a method of bending a metal rod as described above or a method of injection-molding a synthetic resin. It can be manufactured in. Also, attach the mounting rod (3) to the base (22).
There is a method of fitting in the axial direction of the base part (22) or a method of fitting in the radial direction, but in any case, since the entire mounting rod (3) is a Ω-shaped rod-shaped It is easy to bend so that the whole is opened, and it is easy to assemble it to the base portion (22).

[Other Embodiments] FIG. 11 is a plan view of a socket release mechanism (700) of an embedded gas stopper according to another embodiment, and FIG. 12 is a cross-sectional view taken along the line XII-XII of the socket release mechanism (700) of FIG. This is a modification of the socket release mechanism (700) of the buried gas stopper of the above-described embodiment, as shown in FIG.

The mounting rod (3) has a circular curved main body.
(39) is held in an annular groove (26) on the outer periphery of the base portion (22), and a pair of shaft portions (31) following the curved main portion (39).
One of the shaft portions (31) of the (31) is configured to extend tangentially to the trunk from a final point of a contact area with the trunk. Further, the other shaft portion (3) following the curved main body portion (39)
1) is configured so as to be aligned on a straight line in the opposite direction to the one shaft portion (31). For this reason, the other shaft portion (31) is configured such that a portion near the final point of the contact area with the body portion is a curved portion (33) that bypasses the one shaft portion (31). Have been.

The lever body (4) has the same configuration as that of the above-described embodiment. This also has the same operation and effect as the above-described embodiment. . The material forming the mounting rod (3) and the lever body (4) is not limited to metal. For example, ceramics or synthetic resin may be used. Also, the lever body (4) is not limited to the above-described U-shape as long as the lever (4) can push the front end surface of the socket (8). For example, the shape may be a semicircular arc or a straight line.

[Brief description of the drawings]

FIG. 1 is an overall explanatory view of a buried gas stopper according to an embodiment of the present invention.

FIG. 2 is a plan view of the buried gas stopper of FIG.

FIG. 3 is a sectional view of the buried gas stopper of FIG. 1 taken along the line III-III.

FIG. 4 is a cross-sectional view of the buried gas stopper taken along the line IV-IV in FIG. 1;

FIG. 5 is a plan view of a lid (5) of the buried type gas stopper of FIG. 1;

FIG. 6 is a plan view of a main part of the buried gas stopper of FIG. 1;

FIG. 7 is a sectional view taken along the line VII-VII of the embedded gas stopper of FIG. 6;

FIG. 8 is a plan view of the socket release mechanism (700) of FIG. 6;

FIG. 9 is a socket release mechanism (700) of FIG.
Exploded perspective view showing the relationship (2)

FIG. 10 is an explanatory view of the operation of the socket release mechanism (700) in the buried gas stopper of FIG.

FIG. 11 is a plan view of a socket release mechanism (700) of an embedded gas tap according to another embodiment.

FIG. 12 is a sectional view taken along the line XII-XII of the socket releasing mechanism (700) of FIG. 11;

FIG. 13 is an explanatory view of a conventional buried gas stopper.

FIG. 14 is a perspective view of a main part of a buried gas stopper obtained by improving the buried gas stopper of FIG.

[Explanation of symbols]

 (8) ・ ・ ・ Socket (21) ・ ・ ・ Plug (22) ・ ・ ・ Base (3) ・ ・ ・ Mounting rod (31) ・ ・ ・ Shaft (4) ・ ・ ・ Lever (41) ... 1st lever piece (42) ... connecting piece (43) ... 2nd lever piece (26) ... annular groove

Continued on the front page (72) Inventor Tadayuki Minami 4-1-2 Hirano-cho, Chuo-ku, Osaka-shi Inside Osaka Gas Co., Ltd. (72) Inventor Toshiaki Hojo 19-18, Sakuradacho, Atsuta-ku, Nagoya-shi Toho Gas Stock In-company (56) References JP-A-9-264445 (JP, A) JP-A-5-10881 (JP, U) JP-A-4-8874 (JP, U) JP-A-3-69768 (JP, U) ) Japanese Utility Model Application Hei 9-96475 (JP, U) Japanese Utility Model Application Hei 4-138194 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F16K 5/00 F16K 27/00 F16K 31 / 44

Claims (4)

(57) [Claims] 1. A socket release mechanism for removing a socket detachably connected to a plug portion (21) of a gas stopper main body (2) from said plug portion (21), said socket releasing mechanism comprising: A mounting rod (3) externally fitted to a constricted portion formed in a columnar portion following the base end and located near the distal end of the socket in a mounted state, one end of which is connected to and separated from the distal end surface of the socket; A lever body (4) rotatably supported by the mounting rod (3) so as to be connected to the mounting rod (3); and a protrusion provided on the component wall of the gas plug body (2) and connected to the mounting rod (3). Alternatively, a socket releasing mechanism including a concave portion and an elastic protruding arm having a fitting portion to be fitted. 2. The mounting rod (3) includes a pair of shaft portions whose both ends are aligned in a straight line in opposite directions. The lever body (4) includes a pair of shaft portions. A pair of lever pieces that are separately rotatably supported and one end of which faces the distal end surface of the socket; and an operating piece that is connected to the other end of the lever piece. And both ends thereof are separately wound around the pair of shaft portions of the mounting rod (3), and the intermediate portions thereof are externally fitted to the convex portions provided on the constituent wall of the gas plug body (2). The socket releasing mechanism according to claim 1, further comprising a curved portion as a fitting portion. 3. A casing (1) which is embedded in a wall or a floor and has an opening (11) into which a socket is inserted; and a casing (1) housed in the casing (1) and inserted from the opening (11). A gas stopper main body including a plug portion (21) to which the socket is connected, and a fitting portion externally attached to a constricted portion formed in a columnar portion following a base end portion of the plug portion (21) and in a mounted state. A mounting rod (3) located near the distal end of the socket; and a lever body (4) rotatably supported by the mounting rod (3) such that one end thereof comes into contact with and separates from the distal end surface of the socket. A buried type gas plug comprising: a resilient projecting arm having a fitting portion fitted to a convex or concave portion provided on a constituent wall of the gas plug body (2) and connected to the mounting rod (3). 4. The mounting rod (3) includes a pair of shaft portions whose both ends are aligned in a straight line in opposite directions, and the lever body (4) is provided with each of the pair of shaft portions. A pair of lever pieces that are separately rotatably supported and one end of which faces the distal end surface of the socket; and an operating piece that is connected to the other end of the lever piece. And both ends thereof are separately wound around the pair of shaft portions of the mounting rod (3), and the intermediate portions thereof are externally fitted to the convex portions provided on the constituent wall of the gas plug body (2). The buried gas stopper according to claim 3, further comprising a curved portion as a fitting portion.