JP2022152300A - Flange plate mounting structure to gas cock - Google Patents

Abstract

To easily and reliably mount a flange plate to a hexagonal pipe connection part of a gas cock.SOLUTION: A flange plate (1) comprises a flange main body (100), a hexagonal fixture (2) fitted into an annular tapered part (12) provided thereon, and a guide plate (15) that tightly holds the hexagonal fixture (2). The hexagonal fixture (2) comprises six constituent walls (21) connected only at one open end part. A projection piece (22) protrudes inward from a connection portion of the one open end part of each constituent wall (21). A claw part (20) protrudes from the outer surface of each constituent wall (21). When a pipe connection part (31) of a gas cock (3) is inserted into the hexagonal fixture (2) and pushed in, each corner part of the pipe connection part (31) comes into contact with the projection piece (22), and the claw part (20) comes into contact with the annular tapered part (12).SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a mounting structure for mounting a flange plate on a gas cock, and more particularly to a mounting structure for mounting a flange plate, which is attached and fixed to a wall plate, to a hexagonal tubular pipe connecting portion of the gas valve.

For fixing to the surface of the wall plate (4) the gas plug (3) to which the flexible pipe (44) as a gas pipe housed in the wall plate (4) is connected via the joint (41). A metal flange plate (33) is provided so as to protrude radially outward from the open end of the hexagonal pipe connection portion (31) of the gas valve (3) (see FIG. 5).
The pipe connection portion (31) is formed with a tapered female threaded portion (32), and the joint (41) is formed with a tapered male threaded cylindrical portion (42) that can be screwed therewith.

The flange plate disclosed in Japanese Utility Model Laid-Open No. 2-74679 (Patent Document 1) is an annular plate having a central hole. A structure is disclosed in which the open end of the hexagonal tube-shaped pipe connection portion is fitted into a hexagonal fitting portion protruding so as to surround the central hole of the pipe connection portion. In the latter, as shown in FIG. 5, the taper male thread cylinder portion (42) of the joint (41) is fitted into the hexagonal fitting portion (34) while the tightening nut (43) is screwed. Screw it into the taper female threaded portion (32) of the pipe connection portion (31) in the state, and tighten it until it reaches the final tightening position. After that, when the tightening nut (43) is tightened, the peripheral portion of the center hole (30) of the flange plate (33) is pushed by the tightening nut (43) and is firmly pressed against the open end face of the pipe joint (31). As a result, the flange plate (33) is securely attached to the pipe connection portion (31) in a secure state.

The flange plate (33) is provided with a plurality of screw insertion holes (35). 4), attach the mounting bracket (5) to the back of the wall plate (4), and insert the mounting screw (51) through the screw insertion hole (35) of the flange plate (33). Screw it into the screw hole (55) provided in (5) and tighten. As a result, the periphery of the opening (40) of the wall plate (4) is pressed between the flange plate (33) and the mounting bracket (5), and the gas plug (3) is positioned on the surface of the wall plate (4). fixed to

Japanese Utility Model Laid-Open No. 2-74679

However, among the above conventional examples, the former requires the manufacture of a dedicated gas plug having a threaded hole in the open end face of the pipe joint, which cannot be handled at the construction site. Waste occurs in terms of cost. In the latter, a joint ( After screwing the taper male screw cylinder part (42) of 41), the flange plate (33) is constructed on the pipe connection part (31) of the normal gas valve (3) by tightening the tightening nut (43). Although it can be installed on site, the flange plate (33) provided on the gas valve (3) and the base of the taper male threaded cylinder portion (42) of the joint (41) screwed into the pipe connection portion (31). It is difficult to tighten the tightening nut (43) provided in the small gap between the end portions, and mounting the flange plate is difficult. Also, if the tightening force of the tightening nut (43) is weak, the pipe connection portion (31) rattles in the hexagonal fitting portion (34).

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a gas valve that can easily and reliably attach a flange plate for fixing a gas valve to the surface of a wall plate to a hexagonal cylindrical piping connection portion of the gas valve. An object of the present invention is to provide a structure for attaching a flange plate to a stopper.

The technical means of the present invention for solving the above problems is ``a flange plate attachment structure for a gas stopper, in which a flange plate is attached to the open end of the hexagonal pipe connection portion of the gas stopper,
The flange plate is
a small annular plate portion having a central hole; an annular tapered portion extending from the peripheral edge of the small annular plate portion while increasing in diameter; a flange main body consisting of an annular plate portion;
A hexagonal frame having six constituent walls into which the pipe connection portion of the gas valve can be fitted, wherein the adjacent constituent walls are connected only at one open end, and the one open end is connected to each other. a hexagonal fixture fitted into the annular tapered portion through the widest diameter end from the
a guide plate that is joined to the large annular plate portion of the flange main body and has a hexagonal hole that faces the other open end of the hexagonal fixture while holding the hexagonal fixture in a retaining state,
A claw portion protrudes from a predetermined position on the outer surface of each of the constituent walls, and a protruding piece that protrudes inward at a substantially right angle to the constituent wall is provided at the connecting portion of the one open end. be
the claw portion abuts against the annular tapered portion when the hexagonal fixture is inserted into the annular tapered portion;
When the pipe connection portion of the gas plug is inserted from the other open end portion of the hexagonal fixture, each corner portion of the pipe connection portion abuts against the protruding piece.

The above technical means work as follows.
In order to assemble the flange plate, first, a hexagonal fixture is inserted into the widest diameter end of the annular tapered portion of the flange main body from the one open end side where the constituent walls are connected to each other. Then, in the hexagonal fixture, the pawl protruding from the outer surface of each component wall abuts the annular tapered portion, and the other open end protrudes from the maximum enlarged diameter end of the annular tapered portion. . When the guide plate is joined onto the large annular plate portion while inserting the other open end portion into the hexagonal hole, a flange plate in which the flange main body, the hexagonal fixture and the guide plate are integrally assembled is completed. At this time, the claw portion of the hexagonal fixture is caught by the rim of the hexagonal hole of the guide plate from the inside, whereby the hexagonal fixture is set in a retaining state.

To attach this flange plate to the pipe connection portion of the gas cock, insert the pipe connection portion of the gas cock into the other open end of the hexagonal fixture protruding from the hexagonal hole of the guide plate and push it in as it is. Then, protruding pieces protruding inwardly at a substantially right angle with respect to the structural wall at the connection portion of the one open end portion are pushed by the respective corner portions of the pipe connection portion, whereby the hexagonal fixture is held in place. It is pushed inward together with the pipe connection part of the plug. In addition, since the six constituent walls are connected to each other only at one open end on the far side, each constituent wall can swing in and out with the one open end as a base end.
As the hexagonal fixture is pushed into the annular tapered portion of the flange main body toward the small annular plate portion together with the pipe connection portion of the gas valve, the pawl portion in contact with the annular tapered portion moves inward along the inclination of the annular tapered portion. As a result, each component wall swings in a direction of falling inward with the one open end as a base end. As a result, the pipe connecting portion of the gas valve is evenly pushed from the surroundings by the constituent walls that fall inward, and is held within the hexagonal fixture without rattling.

In the structure for attaching the flange plate to the gas valve, it is preferable that "an inclined surface inclined outward is provided on the side of the other open end of each of the constituent walls."

Since the hexagonal fixture has a shape that expands the diameter of the other open end by providing an outwardly inclined surface on the side of the other open end of each constituent wall, a gas plug is provided in the hexagonal fixture. It is easy to insert the pipe connection part. Further, when the hexagonal fixture is pushed into the deep side of the annular tapered portion together with the pipe connection portion of the gas valve, as described above, the pawl portion is pushed inward by the annular tapered portion and each constituent wall is pushed inward. When it swings in the direction in which it falls down, the inclined surfaces of the constituent walls come into contact with the peripheral edge of the hexagonal hole and are pushed in as they are. As a result, the hexagonal fixture is held without rattling with respect to the guide plate without creating a gap between the constituent wall and the peripheral edge of the hexagonal hole.
By swinging each component wall that constitutes the hexagonal fixture inwardly, the gap between the pipe connection part of the gas valve and the hexagonal fixture, as well as the hexagonal fixture and the hexagonal hole of the guide plate Since it is designed not to cause rattling between the gas plug and the gas plug, the gas plug is securely fixed to the flange plate. can be used.

In the flange plate mounting structure to the gas cock, it is preferable that "a flexible pipe is connected to the pipe connection portion via a joint,
The joint is formed with a tapered male threaded cylindrical portion, and the pipe connection portion is formed with a tapered female threaded portion to which the tapered male threaded cylindrical portion can be screwed,
A fixing fitting having an elastic cylinder having elasticity in a tightening direction is fitted to the base end of the tapered male screw cylinder,
When the tapered male threaded tubular portion is tightened to the tapered female threaded portion until the final tightening state is reached, the flange plate is elastically pushed toward the gas plug by the elastic tubular body of the fixing fitting. It is that you are.

In a state in which a fixing fitting having an elastic cylinder having elasticity in the tightening direction is fitted onto the tapered male threaded cylinder part of the joint, the tapered male threaded cylinder part is screwed into the tapered female threaded part of the pipe connection part. and tighten until the final tightening condition is reached. Then, the fixing member is pushed toward the flange plate by the tightening force, and the flange plate is elastic to the gas plug while the degree of tightening is adjusted by the elastic force of the elastic cylinder provided in the fixing member. forcefully pressed. As a result, the gas valve is more firmly attached to the flange plate with the pipe connecting portion fitted in the hexagonal fixture of the flange plate.

By simply inserting the pipe connection part of the gas cock into the annular tapered part provided on the main flange and pushing it inward, each component wall that constitutes the hexagonal fixing tool falls inward and the circumference of the pipe connection part is pushed. Since the surfaces are pressed evenly, the pipe connection portion of the gas valve can be securely held in a tightly fitted state without rattling in the hexagonal fixture. Therefore, the operation of attaching the flange plate to the pipe connection portion of the gas valve is easy and reliable.

Fig. 2 is an exploded perspective view showing how a gas plug is attached using a flange plate employed in the structure for attaching a flange plate to a gas plug according to the embodiment of the present invention; Fig. 2 is an exploded perspective view of a flange plate employed in the structure for attaching a flange plate to a gas valve according to the embodiment of the present invention; FIG. 2 is a cross-sectional view (cross-sectional view taken along the line XX in FIG. 1) of a flange plate employed in the structure for attaching a flange plate to a gas valve according to an embodiment of the present invention; Fig. 2 is an enlarged cross-sectional view of a main part of a flange plate attachment structure to a gas cock according to an embodiment of the present invention; It is explanatory drawing of the flange plate attachment structure to the conventional gas cock.

BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is an exploded perspective view showing how a gas plug is attached using a flange plate (1) according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the flange plate (1).

The flange plate (1) of the embodiment of the present invention, as shown in FIG. A guide plate (15), which is joined to the main body (100) and holds the hexagonal fixture (2) in a retained state, is integrally assembled. These flange main body (100), hexagonal fixture (2) and guide plate (15) are all made of metal plates.

As shown in FIG. 2, the flange main body (100) comprises a small annular plate portion (11) having a central hole (10a) and an annular tapered portion extending from the peripheral edge of the small annular plate portion (11) while increasing in diameter. and a large annular plate portion (13) projecting radially outward from the maximum diameter enlarged end portion (12a) of the annular tapered portion (12). Thus, the flange main body (100) has a shape having a tapered recess (10) with the small annular plate portion (11) as the bottom and the annular tapered portion (12) as the peripheral wall. An annular packing (17) having a hole with the same diameter as the central hole (10a) is placed on 11). An annular back packing (18) is attached along the periphery of the rear surface of the large annular plate portion (13), and a wall is provided at each position symmetrical with respect to the maximum diameter expanded end portion (12a). A screw insertion hole (19) penetrates through which a mounting screw (51) for screwing to a mounting bracket (not shown) located on the back side of the plate is inserted.

The hexagonal fixture (2) is a hexagonal frame formed of six constituent walls (21) and sized to be accommodated in the tapered recess (10). Each component wall (21) is formed by a rectangular plate (211) and a pair of leg pieces (212) extending from both ends of one long side of the rectangular plate (211) to one side. It is formed in a substantially U-shape. Adjacent constituent walls (21) are connected only at the tip (one end) of the adjacent leg piece (212), and otherwise are discontinuous. As a result, each component wall (21) can swing inwards and outwards with the connecting portion at the distal end of the leg piece (212) as the base end.

The connecting portion at the tip of the leg piece (212) is bent inward to provide a protruding piece (22) that protrudes substantially perpendicularly to the constituent wall (21).
At the center of one of the long sides of the rectangular plate (211), an extension piece is bent outward to form a claw portion (20) protruding outward.

Further, the other long side of the rectangular plate (211) is inclined outward to form an inclined surface (23). The inclination angle of the inclined surface (23) is set substantially equal to the inclination angle of the annular tapered portion (12) of the flange main body (100).

Since the hexagonal fixture (2) is constructed as described above, the corners of the hexagon are connected only at the one open end, and the protruding piece (22) projects inward, while the other open end is has a shape that expands along the inclination of the inclined surface (23). When the hexagonal fixture (2) is fitted into the tapered recess (10) of the flange main body (100), as shown in FIG. It is placed in contact with a predetermined position on the peripheral surface, and the other open end protrudes from the annular tapered portion (12).

Then, while inserting the other open end of the hexagonal fixture (2) into the hexagonal hole (14) of the guide plate (15), the flange (16) protrudes outward from the opposite position of the periphery. It is joined to a predetermined position of the macro-annular plate (13). This completes the flange plate (1) consisting of the flange main body (100), the hexagonal fixture (2) and the guide plate (15). In this state, the claws (20) of the hexagonal fixture (2) are positioned on the back side of the guide plate (15) and engaged with the rim of the hexagonal hole (14) from the inside, whereby the hexagonal fixture (2) is locked. 2) is an assembly mode in which the flange body (100) is fitted in the tapered recess (10) and is retained by the guide plate (15) in a retaining state.

Next, a mounting structure for mounting the above-described flange plate (1) to the pipe connection portion (31) of the gas valve (3) will be described.
As the gas plug (3) and the joint (41) provided at the downstream end of the flexible pipe (44), the same ones as in the conventional example shown in FIG. 5 can be used.

A hexagonal tubular pipe connector (31) located upstream of the gas valve (3) is fitted into the other open end of the hexagonal fixture (2) protruding from the guide plate (15). The other open end of the hexagonal fixture (2) is expanded in diameter by the inclined surface (23) provided on each component wall (21), so that the pipe connector (31) can be easily fitted.

After fitting, when the pipe connector (31) is pushed in, the protruding piece (22) provided at one open end of each corner of the hexagonal fixture (2) engages the hexagonal tubular shape of the gas plug (3). The hexagonal fixture (2) is pushed inward together with the pipe connection (31) of the gas valve (3) by being pushed by each corner of the pipe connection (31). In addition, there is approximately Since a triangular gap is formed, if the protruding piece (22) is accommodated in this gap, the protruding piece (22) does not interfere with the open end of the pipe connector (31). The pipe connector (31) can be pushed in until it abuts against the annular packing (17).

When the pipe connection portion (31) is pushed in, the claw portions (20) protruding outward from the constituent walls (21) are pushed inward along the inner surface of the annular tapered portion (12), As shown in FIG. 4, each constituent wall (21) swings inwardly with the projecting piece (22) serving as a base end. As a result, the peripheral surface of the pipe connection portion (31) of the gas valve (3) is evenly pressed by the inner surface of the rectangular plate (211) of each component wall (21).
At the same time, the inclined surface (23) of each component wall (21) comes into contact with the peripheral edge of the hexagonal hole (14) of the guide plate (15), and the guide plate (15) is pushed in as it is. As a result, no gap is formed between the constituent wall (21) and the periphery of the hexagonal hole (14).

As described above, the gas plug (3) pipe connection part ( 31) is inserted and pushed in as it is, the peripheral surface of the pipe connection portion (31) of the gas valve (3) is swung in the direction of tilting the inner surface of each constituent wall (21). By being evenly pressed by the , the pipe connection part (31) can be held in the hexagonal fixture (2) without rattling, and the inclined surface (23) of each component wall (21) is aligned with the guide plate ( By abutting the hexagonal hole (14) of 15), the hexagonal fixture (2) is prevented from rattling in the hexagonal hole (14) of the guide plate (15). The plate (1) can be attached and held to the gas valve (3) easily and without rattling. Therefore, when the user operates the gas plug (3), the user can use the gas plug (3) without any discomfort such as rattling.

The attachment structure for attaching the gas plug (3) having the flange plate (1) to the wall plate in the manner described above will be described with reference to FIG.
A joint (41) is connected to the flexible pipe (44) as a gas pipe arranged on the back side of the wall plate, and the joint (41) is attached to the wall plate together with the flexible pipe (44). The fitting (6) is fitted onto the taper male threaded tubular portion (42) of the joint (41).
As shown in the figure, the metal ring (61) is integrally formed by fitting an elastic cylinder (60) made of an elastic material such as rubber to the inner peripheral edge of the metal ring (61). The upstream open edge (62) of the tubular body (60) is fitted onto the tapered male threaded tubular portion (42) so that it abuts against the base end face (45) of the tapered male threaded tubular portion (42). Let

As described above, the tapered male threaded cylindrical portion (42) onto which the fixture (6) is fitted is screwed into the tapered female threaded portion (32) of the pipe connection portion (31) of the gas valve (3). As a result, the flexible pipe (44) is connected to the gas cock (3) via the joint (41).

Since the flange plate (1) is attached in advance to the pipe connection portion (31) of the gas valve (3) in the manner described above, the tapered male threaded cylindrical portion (42) is finally connected to the tapered female threaded portion (32). When it is tightened until it reaches a tightened state, the upstream open edge (62) of the elastic cylinder (60) is pressed by the proximal end face (45) of the joint (41), and the elastic force The fixture (6) presses the flange plate (1) from the rear side toward the gas valve (3). As a result, the pipe connection portion (31) is fitted into the hexagonal fixture (2) so that the open end edge thereof is strongly pressed against the annular packing (17), and is firmly fixed in that state.

The flange plate (1) is attached around the opening of the room-side wall plate via an annular packing (18), and a mounting bracket (not shown) is attached around the opening on the back side of the wall plate. Let The wall plate is sandwiched between the mounting bracket and the flange plate (1), and the mounting screw (51) inserted through the screw insertion hole (19) provided in the annular plate (11) of the flange plate (1) is inserted into the mounting bracket (1). By screwing it into the screw hole provided in the metal fitting and tightening it, the gas valve (3) is attached with the peripheral edge of the opening of the wall plate being pressed between the flange plate (1) and the mounting metal fitting.

The face side of the flange plate (1) attached and fixed to the face side of the wall plate is covered from the left and right with decorative washers (52) consisting of a pair of washer halves (52a) and (52b). As a result, the gas plug (3) is fixed to the wall plate in such a manner that the decorative washer (52) is attached to the surface of the wall plate and the pipe connector (31) protrudes from the center of the decorative washer (52).

By adopting the flange plate (1) of each of the above embodiments, the six constituent walls (21) of the metal hexagonal fixture (2) constituting the flange plate (1) fall inward. Since the pipe connection portion (31) of the gas valve (3) is evenly pressed against the inner surface of each component wall (21), the pipe connection portion (31) is held by the hexagonal fixture (2). It can be held without rattling inside. Further, a sloped surface (23) is provided on the other open end side of each component wall (21), and the sloped surface (23) is pushed into the guide plate (15) while being in contact with the peripheral edge of the hexagonal hole (14). Therefore, the hexagonal fixture (2) is held without rattling in the hexagonal hole (14) of the guide plate (15). In this way, the flange plate (1) can be easily and reliably attached to the pipe connection portion (31) of the gas valve (3) without rattling. In addition, by fitting the fixing bracket (6) to the tapered male threaded cylinder portion (42) of the joint (41), the tapered male threaded cylinder portion (42) is attached to the pipe connection portion (31). When the tapered female threaded portion (32) of (31) is screwed, the elastic force of the elastic cylinder (60) provided in the fixture (6) causes the flange plate (1) to move against the gas plug (3). Since the pipe connection portion (31) is pressed more firmly, the gas plug (3) can be attached to the flange plate (1) more securely without any discomfort such as rattling.

(1) ・・・・・・・・Flange plate
(2) ・・・・・・・・Hexagonal fixture
(3) ・・・・・・・・Gas cock
(10a) ・・・・・・・Center hole
(11) ・・・・・・・・Small annular plate
(12)・・・・Annular tapered portion
(12a) ・・・・・・Maximum expansion end
(13)・・・・・・・Large annular plate
(14)・・・・・・Hexagon hole
(15)・・・・・・・・Guide plate
(20)・・・・Claw portion
(21) ・・・・Construction wall
(22) ・・・・・・・・Protruding piece
(31)・・・・Piping connection part
(100) ・・・・・・ Mainly flange

Claims (3)

In the structure for attaching a flange plate to a gas stopper, wherein the flange plate is attached to the open end of the hexagonal pipe connection part of the gas stopper,
The flange plate is
a small annular plate portion having a central hole; an annular tapered portion extending from the peripheral edge of the small annular plate portion while increasing in diameter; a flange main body consisting of an annular plate portion;
A hexagonal frame having six constituent walls into which the pipe connection portion of the gas valve can be fitted, wherein the adjacent constituent walls are connected only at one open end, and the one open end is connected to each other. a hexagonal fixture fitted into the annular tapered portion through the widest diameter end from the
a guide plate that is joined to the large annular plate portion of the flange main body and has a hexagonal hole that faces the other open end of the hexagonal fixture while holding the hexagonal fixture in a retaining state,
A claw portion protrudes from a predetermined position on the outer surface of each of the constituent walls, and a protruding piece that protrudes inward at a substantially right angle to the constituent wall is provided at the connecting portion of the one open end. be
the claw portion abuts against the annular tapered portion when the hexagonal fixture is inserted into the annular tapered portion;
A flange to the gas plug which is set so that when the pipe connection portion of the gas plug is inserted from the other open end portion of the hexagonal fixture, each corner portion of the pipe connection portion comes into contact with the protruding piece. Board mounting structure. In the flange plate attachment structure to the gas cock according to claim 1,
A structure for attaching a flange plate to a gas plug, in which an outwardly inclined surface is provided on the other open end side of each of the constituent walls. In the flange plate attachment structure to the gas cock according to claim 1 or 2,
A flexible pipe is connected to the pipe connecting portion via a joint,
The joint is formed with a tapered male threaded cylindrical portion, and the pipe connection portion is formed with a tapered female threaded portion to which the tapered male threaded cylindrical portion can be screwed,
A fixing fitting having an elastic cylinder having elasticity in a tightening direction is fitted to the base end of the tapered male screw cylinder,
When the tapered male threaded tubular portion is tightened to the tapered female threaded portion until the final tightening state is reached, the flange plate is elastically pushed toward the gas plug by the elastic tubular body of the fixing fitting. Flange plate mounting structure to the gas tap.

Images