JP2022152273A - Flange plate mounting structure to gas cock - Google Patents

Abstract

To easily and surely mount a flange plate to a hexagonal cylindrical pipe connection portion of a gas cock.SOLUTION: A flange plate (1) is composed of a sheet of metal plate, and has a shape having: an annular plate (11) having a center hole (10); a plurality of connection bands (12) extending from a plurality of prescribed positions of a peripheral edge of the annular plate and bent at base end portions to be overlapped to the annular plate (11); and a hexagonal fitting portion (13) connected to tips of the connection bands, placed on the annular plate (11) in a manner of surrounding the center hole (10) so that a pipe connection portion (31) can be tightly fitted. A constituent wall of the hexagonal fitting portion (13) is divided into a plurality of split pieces (13a), (13b) through a plurality of discontinuous portions (15) in a manner that each of them is connected to the connection band (12), and the split pieces (13a), (13b) and/or the connection bands (12) are elastically deformable in a direction to expand and contract a width of the discontinuous portions (15).SELECTED DRAWING: Figure 1

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. 6).
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. 6, the tapered externally threaded cylindrical portion (42) of the joint (41) with the tightening nut (43) screwed thereon is fitted into the hexagonal fitting portion (34). 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). will be 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 single metal plate,
an annular plate having a central hole;
a plurality of connecting bands extending from a plurality of predetermined positions on the periphery of the annular plate and bent at their base ends and superimposed on the annular plate;
A shape having a hexagonal fitting portion which is connected to the tip of the connecting band and placed on the annular plate so as to surround the central hole so that the open end of the pipe connection portion can be closely fitted. is configured to
The six constituent walls forming the hexagonal fitting portion are divided into a plurality of divided pieces consisting of one or more constituent walls via a plurality of discontinuous portions, and each of the divided pieces is connected to the connecting band. connected to each of the
The plurality of split pieces and/or the connecting band are characterized by being elastically deformable in the direction of enlarging the width of the discontinuous portion.

The above technical means work as follows.
The flange plate is made of a single metal plate, and the six constituent walls forming the hexagonal fitting portion are divided into a plurality of divided pieces via discontinuous portions, and each divided piece They are respectively connected to the connecting bands and mounted on the annular plate. Since the plurality of split pieces and/or the connecting band can be elastically deformed in the direction in which the width of the discontinuous portion widens due to the elasticity of the metal plate, the diameter of the hexagonal fitting portion can be elastically expanded. When the open end of the pipe connection portion of the gas plug is fitted into the hexagonal fitting portion while maintaining this diameter-expanded state, after the fitting is completed, the elastic restoring force of each split piece and/or the connecting band causes the pipe connection portion to move. is biased in the pressing direction. As a result, the pipe connecting portion of the gas plug is tightly fitted into the hexagonal fitting portion, and the gas plug is held against the flange plate without rattling.

In the structure for attaching a flange plate to a gas cock, it is preferable that "the hexagonal fitting portion is divided into two sections each composed of three continuous constituent walls by discontinuous portions provided at two corner portions located opposite to each other." split into pieces,
The connecting strips extend from mutually opposing positions on the periphery of the annular plate and are connected to a component wall located in the center of the split piece.

The hexagonal fitting portion is composed of six constituent walls and six corner portions, and by providing discontinuous portions in the two corner portions located opposite to each other, two divided pieces consisting of three consecutive constituent walls are formed. will be provided. Of the three constituent walls, the central constituent wall is connected to the connecting belt, and the two constituent walls located on both sides thereof are in a free state on the non-continuous portion side. Therefore, when the open end of the pipe connection portion of the gas valve is fitted into the hexagonal fitting portion, the two constituent walls on both sides elastically deform in the direction of widening the width of the discontinuous portion, so that the hexagonal fitting portion is The diameter can be expanded, and the pipe connecting portion can be easily fitted into the hexagonal fitting portion. After the fitting of the pipe connection portion into the hexagonal fitting portion is completed, the elastic restoring force of the two constituent walls urges the peripheral surface of the corresponding pipe connection portion in the direction of pressing. , the pipe connection is held tightly within the hexagonal fitting.

In the flange plate attachment structure to the gas cock, it is preferable that "the hexagonal fitting part has six constituent walls divided by six discontinuous parts provided at each corner part as divided pieces,
The connecting band extends from three equally spaced locations on the circumference of the annular plate toward three discontinuous portions of the six discontinuous portions that are positioned alternately. Continuing to the ends of the two constituent walls respectively located on both sides of the three discontinuous portions.

By providing a discontinuous portion at each corner portion of the hexagonal fitting portion, each of the six constituent walls constituting the hexagonal fitting portion becomes six divided pieces, and three connecting bands extend from the peripheral edge of the annular plate. are connected to each of the two constituent walls. When the open end of the pipe connection portion of the gas valve is fitted into the hexagonal fitting portion, the six constituent walls are elastically deformed in the direction in which the widths of the six discontinuous portions widen. The diameter can be easily and greatly expanded, and the open end portion of the pipe connection portion of the gas valve can be more easily fitted into the hexagonal fitting portion. After the pipe connecting portion is completely fitted into the hexagonal fitting portion, the pipe connecting portion is securely held in the hexagonal fitting portion by the elastic restoring force of the six constituent walls.

In the above flange plate mounting structure to the gas cock, it is preferable that "out of the six constituent walls constituting the hexagonal fitting portion, three constituent walls positioned every other one are separated by a discontinuous portion provided in the center. each divided into a pair of structural wall halves,
The hexagonal fitting portion is divided into three divided pieces each having a shape in which the constituent wall halves are continuous on both sides of the other three constituent walls that are not provided with the discontinuous portion,
The connecting bands extend from three equidistant locations on the periphery of the annular plate toward the center of the three divided pieces, and are connected to the other three constituent walls, respectively. ’ is.

A hexagonal fitting portion is formed by three split pieces in a shape in which half walls are continuous on both sides of a wall having no discontinuous portion, and the wall in the center is connected to the connecting band.
When the open end of the pipe connection portion of the gas plug is fitted into the hexagonal fitting portion, the wall halves constituting each split piece are elastically deformed in the direction of widening the width of the discontinuous portion, thereby opening the hexagonal fitting portion. expands. After the pipe connection portion is completely fitted into the hexagonal fitting portion, each of the constituent wall halves is moved by its elastic restoring force so that every other one of the six peripheral surfaces of the hexagonal pipe connection portion By biasing against the three peripheral surfaces located, the pipe connection is securely retained within the hexagonal fitting.

In the flange plate attachment structure to the gas cock, it is preferable that "the connecting band has an arch shape in which the range from the peripheral edge of the annular plate to the hexagonal fitting portion is raised above the annular plate,
When the split pieces are pushed outward, the connecting band is set to be elastically deformed in a direction in which the height of the top portion thereof increases.
When the open end of the pipe connection portion is fitted into the hexagonal fitting portion, when a force is applied to each of the plurality of split pieces forming the hexagonal fitting portion in a direction to push them outward, the elasticity of the split pieces increases. Along with the deformation, the connecting band, which is formed in an arch shape so as to be lifted from the annular plate, elastically deforms in the direction in which the height of the top portion increases, so that the diameter of the hexagonal fitting portion can be expanded more easily, and the pipe can be installed. It becomes easy to insert the connecting part. After the pipe connection portion has been completely fitted into the hexagonal fitting portion, the elastic restoring force of each split piece and the elastic restoring force of the connecting band act simultaneously, so that each split piece is pressed against the peripheral surface of the pipe connection portion. A strong force is applied in the pressing direction, and the pipe connection portion of the gas plug can be held even more firmly by the plurality of split pieces.

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 plug is more firmly attached to the flange plate with the pipe connection portion fitted into the hexagonal fitting portion of the flange plate.

The flange plate is made of a single metal plate, and the hexagonal fitting portion is not provided integrally with the annular plate, and is divided into a plurality of split pieces by a plurality of discontinuous portions. The fitting portion can be expanded in diameter while elastically expanding the width of the discontinuous portion, and the hexagonal fitting portion can be easily fitted with the pipe connection portion of the gas valve. After fitting, the peripheral surface of the pipe connection portion of the gas plug is urged in the direction of being pressed by the plurality of split pieces due to the elastic restoring force of the metal plate. It is held in a tight fit within the fitting.
In this way, by forcibly fitting the open end of the pipe connection portion of the gas valve into the hexagonal fitting portion, the pipe connecting portion is fitted into the hexagonal fitting portion by the elastic restoring force of the metal plate. Since the flange plate can be firmly held by , it becomes easy to attach the flange plate to the pipe connection portion of the gas valve. Further, since the pipe connection portion of the gas valve is elastically biased by the plurality of split pieces, rattling does not occur between the pipe connection portion and the hexagonal fitting portion. Therefore, when the user operates the gas cock, the user can use the gas cock without feeling discomfort due to rattling.

1 is an exploded perspective view of a flange plate employed in a structure for attaching a flange plate to a gas valve according to the first embodiment of the present invention; FIG. 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 first embodiment of the present invention; FIG. 10 is a perspective view of a flange plate employed in a structure for attaching a flange plate to a gas valve according to a second embodiment of the present invention; FIG. 11 is a perspective view of a flange plate employed in a structure for attaching a flange plate to a gas valve according to a third embodiment of the present invention; (A) is a perspective view showing another example of the connecting band in the flange plate employed in the first embodiment of the present invention, and (B) is a perspective view of the second embodiment of the present invention. FIG. 12C is a perspective view showing another example of a connecting band in the employed flange plate, and (C) is a perspective view showing another example of a connecting band in the flange plate of the third embodiment. 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 of the flange plate (1) of the first embodiment of the present invention, and FIG. 2 is an exploded perspective view showing how the flange plate (1) is used to attach a gas plug. is.
The flange plate (1) of the first embodiment consists of a single metal plate, an annular plate (11) having a central hole (10), and two parts facing each other on the periphery of the annular plate (11). a pair of first and second connecting belts (12a) and (12b) extending from each of the first and second connecting belts (12a) and (12b), and the first, A shape having second split pieces (13a) and (13b) is punched out.

By subsequent bending, as shown in FIG. 1, the first and second connecting bands (12a) and (12b) are folded in half at the boundary (1a) with the annular plate (11), thereby forming an annular plate ( Overlap on the surface of 11). The first and second split pieces (13a) and (13b) are bent at a right angle at the boundary (1b) between the first and second connecting bands (12a) and (12b) to stand on the annular plate (11). , and each is folded at about 120 degrees at two points that are divided into three equal parts. The pair of first and second split pieces (13a) and (13b) form a hexagonal fitting portion (13) surrounding the central hole (10) of the annular plate (11).

The first split piece (13a) is composed of three consecutive first to third walls (131) to (133) of the six walls that make up the hexagonal fitting portion (13). The two-part piece (13b) is composed of three other consecutive fourth to sixth constituent walls (134) to (136).
The first connecting strip (12a) is connected to the second component wall (132) located in the center of the first split piece (13a), and the second connecting strip (12b) is connected to the second split piece (13a). 13b) is connected to the fifth component wall (135) located in the center. The free ends of the first and third walls (131) and (133) located on both sides of the second wall (132) and the fourth and sixth walls (135) located on both sides of the fifth wall (135) The free ends of 134 and 136 are formed with bent pieces (14) that bend outward, and discontinuous portions (15) are provided between the bent pieces (14) facing each other. It is As a result, the hexagonal fitting portion (13) is configured in a discontinuous hexagonal shape with discontinuous portions (15) formed at the two opposing corners.

In addition, as shown in FIG. 1, a central hole ( A hexagonal annular packing (17) formed with a hole having the same diameter as 10) is accommodated, and an annular back packing (18) is attached to the back side of the annular plate (11) along its periphery. is set.
In addition, a mounting screw (51) for screwing a mounting bracket (not shown) located on the back side of the wall plate is inserted in a position symmetrical to the center hole (10) of the annular plate (11). A screw insertion hole (19) for this is penetrated.

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 with reference to FIG.
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. 6 can be used.

First, the hexagonal cylindrical pipe connection portion (31) located upstream of the gas valve (3) is connected to the hexagonal fitting portion (13) placed on the annular plate (11) of the flange plate (1). fit inside.
As described above, the flange plate (1) is a pair of first and second connecting belts (12a) and (12b) connected to the ends of the first and second connecting bands (12a) and (12b) by punching and bending a single metal plate. The two split pieces (13a) and (13b) constitute the hexagonal fitting portion (13), and the bent pieces (14) at both ends of the two pieces (13a) and (13b) are arranged so that they face each other across the discontinuous portion (15). ) so as to surround the central hole (10), the hexagonal fitting portion (13) made up of the first and second split pieces (13a) and (13b) is moved by the elasticity of the metal plate. , the width of the discontinuous portion (15) is elastically deformable in the direction of expansion and contraction.

Therefore, when the pipe connection portion (31) of the gas valve (3) is forcibly fitted into the hexagonal fitting portion (13), the discontinuous portion (15) expands and the bent pieces (14) facing each other expand. The first and third constituent walls 131 and 133 of the first split piece 13a and the fourth and sixth constituent walls 134 and 136 of the second split piece 13b are arranged in directions away from each other. ) is elastically deformed, the diameter of the hexagonal fitting portion (13) can be expanded, and the pipe connecting portion (31) can be easily fitted into the hexagonal fitting portion (13).

Then, in a fitting state in which the open end surface of the pipe connection portion (31) is in pressure contact with the annular packing (17) provided at the bottom of the hexagonal fitting portion (13), the elastic restoring force of the metal plate causes the second 1. The third component walls (131) and (133) and the fourth and sixth component walls (134) and (136) urge the peripheral surface of the pipe connection portion (31) in a direction to press the pipe connection. The portion (31) can be tightly fitted into the hexagonal fitting portion (13) consisting of the first and second split pieces (13a) and (13b). Therefore, the flange plate (1) can be attached to the gas plug (3) without rattling and is held firmly.

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 (2) is fitted onto the taper male threaded tubular portion (42) of the joint (41).
As shown in the figure, the metal ring (2) is integrally formed by fitting an elastic cylindrical body (20) made of an elastic material such as rubber to the inner peripheral edge of the metal ring (21). The upstream open edge (22) of the cylindrical body (20) is fitted onto the tapered male threaded cylinder (42) so that it abuts against the base end face (45) of the tapered male threaded cylinder (42). Let

As described above, the tapered male threaded cylindrical portion (42) onto which the fixture (2) 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).

The flange plate (1) is attached to the pipe connection portion (31) of the gas valve (3) in the manner described above, and the fixing bracket (2) is fitted onto the tapered male screw cylinder portion (42). Therefore, when the tapered male threaded tubular portion (42) is tightened to the tapered female threaded portion (32) until the final tightening state is reached, the upstream open edge (22) of the elastic tubular body (20) is engaged with the joint ( By being pressed by the base end face (45) of 41), the fastener (2) presses the flange plate (1) from the back side toward the gas valve (3) due to its elastic force. As a result, the pipe connection portion (31) is fitted into the hexagonal fitting portion (13) so that the open edge thereof is pressed against the annular packing (17), held in that state, and firmly fixed. .

As described above, the biasing force of the pair of split pieces (13a) and (13b) forming the hexagonal fitting portion (13) and the elastic force of the elastic cylinder (20) provided in the fixture (2) As a result, the flange plate (1) engages the pipe connection portion (31) of the gas valve (3) in a state in which the open end of the pipe connection portion (31) is accommodated in the hexagonal fitting portion (13) without rattling. securely attached to the In addition, the degree of tightening of the tapered male threaded tube portion (42) of the joint (41) to the tapered female threaded portion (32) of the pipe connection portion (31) is adjusted by the elastic tube (20) of the fixture (2). Therefore, the joint (41) is not over-tightened.

The flange plate (1) is attached around the opening of the room-side wall plate via the back annular packing (18), and a mounting bracket (not shown) is attached around the opening on the back side of the wall plate. set up. 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).

FIG. 3 is a perspective view of the flange plate (1) of the second embodiment of the present invention. In this one, first to third connecting bands (12a), (12b), and (12c) are provided at three equally spaced locations around the annular plate (11), and a hexagonal fitting portion (13) is provided. By providing discontinuous portions (15a) to (15f) at each corner of the six first to sixth constituent walls (131) to (136) constituting the hexagonal fitting portion (13), Each of them is a split piece.

When the first to third connecting bands (12a), (12b), and (12c) are bent at the base ends, they are positioned to face the three discontinuous portions (15a), (15c), and (15e) that are positioned alternately. A first connecting band (12a) is provided at one end of each of the first and second constituent walls (131) and (132) located on both sides of the discontinuous portion (15a). are located at one end of each of the third and fourth component walls (133) and (134) located on both sides of the discontinuous portion (15c), and the third connecting strip (12c) is located on both sides of the discontinuous portion (15e). One end of each of the fifth and sixth constituent walls 135 and 136 is connected to each other.
At the free ends of the first to sixth walls 131 to 136, which are not connected to the first to third connecting strips 12a, 12b, and 12c, bending pieces that bend outward are provided. (14) extend so as to face each other through each non-connecting portion (15).

When the open end of the pipe connecting portion of the gas valve similar to that employed in the first embodiment is fitted into this hexagonal fitting portion (13), six discontinuous portions (15a) are formed. (15f), the six first to sixth constituent walls (131) to (136) are elastically deformed particularly in the direction in which the width of the discontinuous portion (15) between the bending pieces (14) increases. By doing so, the diameter of the hexagonal fitting portion (13) can be greatly expanded. Therefore, it becomes easier to fit the open end of the pipe connecting portion of the gas valve into the hexagonal fitting portion (13). After the pipe connection portion is completely fitted into the hexagonal fitting portion (13), the six first to sixth component walls (131) to (136) are elastically restored around the pipe connection portion. The flange plate (1) can be attached to the gas valve by urging the surface in the direction of pressing and securely holding the pipe connection portion in the hexagonal fitting portion (13) without rattling.

FIG. 4 is a perspective view of a flange plate (1) employed in a structure for attaching a flange plate to a gas valve according to the third embodiment of the present invention.
As in the case of the second embodiment, the connecting bands of this embodiment have first to third joints extending from three equally spaced points on the periphery of the annular plate (11). The connecting bands (12a), (12b), and (12c) are located alternately among the six first to sixth walls (131) to (136) forming the hexagonal fitting portion (13). It is connected to the first, third and fifth constituent walls (131) (133) (135).

The other second, fourth and sixth constituent walls 132, 134 and 136 are each provided with a discontinuous portion 15 in the center to form second constituent wall halves 132a and 132b. , fourth wall halves 134a and 134b, and sixth wall halves 136a and 136b. A first dividing piece (13a) is composed of the constituent wall half (132a) and the sixth constituent wall half (136b), and the third constituent wall (133) and the second constituent wall halves connected to both ends of the third constituent wall (133). The body (132b) and the fourth wall half (134a) constitute the second split piece (13b), and the fifth wall (135) and the fourth wall half (134b) connected to both ends thereof. ) and the sixth wall half body (136a) constitute the third split piece (13c).

That is, these three first to third split pieces (13a), (13b), and (13c) form the hexagonal fitting portion (13), and the first, third, and fifth configurations are located in the center of each. Walls 131, 133, 135 are connected to connecting strips 12a, 12b, 12c, and the free ends of each of the constituent wall halves following on either side of these constituent walls have outwardly bent ends. The bending pieces (14) extend so as to face each other through the non-connecting portions (15).

When the open end of the pipe connection portion of the gas valve is fitted into the hexagonal fitting portion (13), the second wall half bodies (132a, 132b) and the fourth wall half bodies (134a, 134b) ), the free ends of the sixth wall halves (136a) and (136b) from which the bent pieces (14) extend are elastically deformed in the direction of widening the width of the discontinuous portion (15), thereby forming a hexagonal fit. The portion (13) is enlarged in diameter so that the open end of the pipe connecting portion can be easily fitted into the hexagonal fitting portion (13). After the fitting into the hexagonal fitting portion (13) is completed, the free end of each of the constituent wall halves is moved by its elastic restoring force to one of the six peripheral surfaces of the hexagonal pipe connection portion. By urging the three peripheral surfaces positioned alternately in the direction of pressing, the pipe connection portion is firmly held in the hexagonal fitting portion (13).

FIG. 5 is an explanatory diagram of a modification of the connecting band in the flange plate (1) employed in the above-described first to third embodiments. (B) and (C) are the connecting bands of the flange plate (1) of the second and third embodiments, respectively, An arch-shaped connecting band (16) is formed by floating from the annular plate (11).

When the open end of the pipe connection portion is fitted into the hexagonal fitting portion (13) of this embodiment, the constituent walls (131) to (136) forming the hexagonal fitting portion (13) face outward. When pushed, each arch-shaped connecting band (16) connected to them elastically deforms in the direction of increasing the height of the top of the arch, so that the diameter of the hexagonal fitting part (13) can be expanded. After the pipe connection portion is completely fitted into the hexagonal fitting portion (13), the constituent walls (131) to (136) are moved inward by the elastic restoring force of the arched connecting band (16), A force is applied in a direction to press the peripheral surface of the pipe connection portion.
In addition to the elastic deformation of the constituent walls (131) to (136), the arch-shaped connecting band (16) is also elastically deformable, so that the hexagonal fitting portion (13) can be deformed by a greater elastic force. can be scaled. Therefore, the pipe connection portion of the gas valve can be more easily fitted into the hexagonal fitting portion (13). It is firmly fixed in the hexagonal fitting portion (13) by the elastic restoring force of the constituent walls (131) to (136).

By adopting the flange plate (1) of each of the above embodiments, the hexagonal fitting portion (13) can be expanded and contracted by the elasticity of the metal plate that constitutes the flange plate (1). The pipe connection portion (31) of (3) is easily fitted into the hexagonal fitting portion (13) of the flange plate (1), and after the fitting is completed, the pipe connection portion is (31) can be firmly held in the hexagonal fitting (13). That is, the pipe connection portion (31) does not rattle in the hexagonal fitting portion (13), and the flange plate (1) can be securely attached to the pipe connection portion (31). In addition, by fitting the fixing bracket (2) 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 screwed into the tapered female screw portion (32) of (31), the elastic force of the elastic cylinder (20) provided in the fixture (2) causes the flange plate (1) to move against the gas plug (3). Since it is pressed against the pipe joint (31) more firmly, the user can operate the gas valve (3) without feeling discomfort such as rattling when using it.

(1) ・・・・・・・・Flange plate
(3) ・・・・・・・・Gas cock
(10)・・・・・・・・Center hole
(11)・・・・Annular plate
(12a)(12b)・・・connecting band
(13)・・・・・・・・Hexagon fitting part
(13a)(13b) ・・・・Segmented pieces
(15) ..... discontinuous part
(31)・・・・Piping connection part
(131)～(136)・・・Construction wall

Claims (6)

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 single metal plate,
an annular plate having a central hole;
a plurality of connecting bands extending from a plurality of predetermined positions on the periphery of the annular plate and bent at their base ends and superimposed on the annular plate;
A shape having a hexagonal fitting portion which is connected to the tip of the connecting band and placed on the annular plate so as to surround the central hole so that the open end of the pipe connection portion can be closely fitted. is configured to
The six constituent walls forming the hexagonal fitting portion are divided into a plurality of divided pieces consisting of one or more constituent walls via a plurality of discontinuous portions, and each of the divided pieces is connected to the connecting band. connected to each of the
A flange plate mounting structure for a gas cock, wherein the plurality of split pieces and/or the connecting band are elastically deformable in a direction of enlarging the width of the discontinuous portion. In the flange plate attachment structure to the gas cock according to claim 1,
The hexagonal fitting portion is divided into two split pieces each made up of three continuous constituent walls by discontinuous portions provided at two corner portions at opposing positions,
The connecting strips extend from mutually opposing positions on the peripheral edge of the annular plate and are connected to a structural wall located in the center of the split piece. In the flange plate attachment structure to the gas cock according to claim 1,
The hexagonal fitting part has six constituent walls divided by six discontinuous parts provided at each corner part as divided pieces,
The connecting band extends from three equally spaced locations on the circumference of the annular plate toward three discontinuous portions of the six discontinuous portions that are positioned alternately. Flange plate mounting structure for gas plugs continuous to ends of two constituent walls respectively located on both sides of the three discontinuous portions. In the flange plate attachment structure to the gas cock according to claim 1,
Of the six constituent walls that constitute the hexagonal fitting portion, three constituent walls that are positioned alternately are each divided into a pair of constituent wall halves by a discontinuous portion provided in the center,
The hexagonal fitting portion is divided into three divided pieces each having a shape in which the constituent wall halves are continuous on both sides of the other three constituent walls that are not provided with the discontinuous portion,
The connecting bands extend from three equidistant locations on the periphery of the annular plate toward the center of the three divided pieces, and are connected to the other three constituent walls, respectively. Flange plate mounting structure to gas valve. In the flange plate attachment structure to the gas cock according to any one of claims 1 to 4,
The connecting band has an arch shape in which a range from the peripheral edge of the annular plate to the hexagonal fitting portion rises above the annular plate,
A structure for attaching a flange plate to a gas valve, wherein when the split piece is pushed outward, the connecting band is elastically deformed in a direction in which the height of the top portion of the connecting band increases. In the flange plate mounting structure for a gas cock according to any one of claims 1 to 5,
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.

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