Flange plate mounting structure for gas valve

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]

[0001] The present invention relates to an attachment structure for attaching a flange plate to a gas valve, and more particularly to an attachment structure for attaching a flange plate attached and fixed to a wall plate to a hexagonal cylindrical pipe connection portion of the gas valve. [Background technology]

[0002] In order to fix the gas tap (3), to which a flexible pipe (44) serving as a gas pipe housed in the wall panel (4) is connected via a joint (41), to the surface of the wall panel (4), a metal flange plate (33) is provided so as to protrude radially outward from the open end of the hexagonal cylindrical pipe connection portion (31) of the gas tap (3) (see FIG. 5). The pipe connection portion (31) is formed with a tapered female thread portion (32), and the joint (41) is formed with a tapered male thread cylindrical portion (42) that can be screwed thereto.

[0003] The flange plate in Japanese Utility Model Application Laid-Open Publication No. 2-74679 (Patent Document 1) is an annular plate having a central hole, and discloses an attachment structure in which the peripheral area of ​​the central hole is directly fixed to the open end face of the pipe connection part by screwing, and a structure in which the open end of the hexagonal tubular pipe connection part is fitted into a hexagonal fitting part protruding to surround the circular central hole to form a single unit. In the latter structure, as shown in Fig. 5, with the tightening nut (43) screwed in, the tapered male threaded tubular part (42) of the joint (41) is screwed into the tapered female threaded part (32) of the pipe connection part (31) fitted into the hexagonal fitting part (34), and then tightened until it reaches the final tightening position. Thereafter, when the tightening nut (43) is tightened, the peripheral portion of the central hole (30) of the flange plate (33) is pressed by the tightening nut (43) and firmly pressed against the open end face of the pipe connection portion (31), so that the flange plate (33) is securely attached to the pipe connection portion (31) in a non-removable state.

[0004] The flange plate (33) has a plurality of screw insertion holes (35), and the flange plate (33) attached to the pipe connection part (31) of the gas valve (3) in the above-mentioned manner is attached to the surface of the wall plate (4), the mounting bracket (5) is attached to the back surface of the wall plate (4), and the mounting screws (51) inserted into the screw insertion holes (35) of the flange plate (33) are screwed into the screw holes (55) of the mounting bracket (5) and tightened. As a result, the periphery of the opening (40) of the wall plate (4) is clamped between the flange plate (33) and the mounting bracket (5), and the gas valve (3) is fixed to the surface of the wall plate (4). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 2-74679 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the former of the above conventional examples, it is necessary to manufacture a dedicated gas valve with a screw hole on the open end face of the pipe connection, which cannot be handled at the construction site and is costly. In the latter, the flange plate (33) can be attached to the pipe connection part (31) of a normal gas valve (3) at the construction site by screwing the tapered male screw tube part (42) of the joint (41) into the tapered female screw part (32) of the gas valve (3) in a state in which the pipe connection part (31) is fitted into the hexagonal fitting part (34) provided on the flange plate (33), and then tightening the tightening nut (43). However, it is difficult to tighten the tightening nut (43) provided in the small gap between the flange plate (33) provided on the gas valve (3) and the base end of the tapered male screw tube part (42) of the joint (41) screwed into the pipe connection part (31), making the installation of the flange plate difficult. Furthermore, if the tightening force of the tightening nut (43) is not strong enough, the pipe connection portion (31) may become loose inside the hexagonal fitting portion (34).

[0007] The present invention has been made in consideration of the above points, and its object is to provide a flange plate mounting structure for a gas valve, which can easily and securely attach a flange plate for fixing the gas valve to the surface of a wall panel to the hexagonal cylindrical piping connection portion of the gas valve. [Means for solving the problem]

[0008] The technical means of the present invention to solve the above problem is to "install a hexagonal pipe connection part of a gas valve at the open end of the pipe connection part. for fixing the gas valve to the surface of the wall plate In a flange plate mounting structure for a gas valve to which a flange plate is to be attached, The flange plate is a flange main body including a small annular plate portion having a central hole, an annular tapered portion extending from a periphery of the small annular plate portion while expanding in diameter, and a large annular plate portion extending radially outward from a maximum expanded diameter end portion of the annular tapered portion; a hexagonal frame body consisting of six component walls into which the pipe connection portion of the gas cock can be fitted, the adjacent component walls being connected to each other only at one open end portion, and a hexagonal fastener being fitted into the annular tapered portion from the one open end portion via the maximum diameter expansion end portion; a guide plate which is joined to the large annular plate portion of the flange main body and has a hexagonal hole through which the other open end of the hexagonal fastener faces while holding the hexagonal fastener in a non-removable state, The above Hexagonal Fixture a claw portion is provided at a predetermined position on the outer surface of each of the walls, and a protruding piece is provided at the connecting portion of the one open end portion, protruding inwardly at a substantially right angle to the wall, The claw portion is a hexagonal fastener but The above Flange-based Insert into the annular tapered section As the plate is pushed toward the small annular plate portion, Abutting on the annular tapered part In this state, the wall is pushed inward according to the inclination of the annular tapered portion, and accordingly, each of the component walls swings in a direction in which it falls inward with the one open end as a base end, When the piping connection portion of the gas valve is inserted into the other open end of the hexagonal fastener, each corner of the piping connection portion is set to abut against each of the protruding pieces.

[0009] The above technical means operates as follows. To assemble the flange plate, first, insert the hexagonal fastener into the maximum diameter expansion end of the annular tapered portion of the flange main body from the side of the one open end where the constituent walls are connected to each other. Then, the claws of the hexagonal fastener protruding from the outer surfaces of the constituent walls abut the annular tapered portion, and the other open end of the hexagonal fastener protrudes from the maximum diameter expansion end of the annular tapered portion. When the guide plate is joined onto the large annular plate portion while the other open end is inserted into the hexagonal hole, the flange plate is completed with the flange main body, the hexagonal fastener, and the guide plate assembled together. At this time, the claws of the hexagonal fastener are caught from the inside on the periphery of the hexagonal hole of the guide plate, so that the hexagonal fastener is set in a non-removable state.

[0010] To attach this flange plate to the pipe connection of the gas valve, the pipe connection of the gas valve is inserted into the other open end of the hexagonal fastener protruding from the hexagonal hole of the guide plate and pushed inward. Then, the protruding piece protruding inward at a substantially right angle to the component walls at the connecting portion of the one open end is pushed by each corner of the pipe connection, so that the hexagonal fastener is pushed inward together with the pipe connection of the gas valve. In addition, since the six component walls are connected to each other only at one open end on the far side, each component wall can swing inward and outward with the one open end as its base end. As the hexagonal fastener, together with the gas valve's pipe connection, is pushed into the annular tapered portion of the flange main body toward the small annular plate portion, the claws abutting the annular tapered portion are pushed inward in accordance with the inclination of the annular tapered portion, and the walls swing inwardly from the one open end as the base end. As a result, the gas valve's pipe connection is pushed evenly from all sides by the walls that have fallen inward, and is held in the hexagonal fastener without rattling.

[0011] In the above-mentioned structure for mounting a flange plate to a gas valve, it is preferable that "each of the component walls is provided with an inclined surface inclined outwardly on the other open end side."

[0012] The hexagonal fastener has an inclined surface that inclines outward on the other open end side of each of the walls, so that the other open end is shaped to have an expanded diameter, making it easy to insert the pipe connection part of the gas valve into the hexagonal fastener. Also, when the hexagonal fastener is pushed into the back side of the annular tapered part together with the pipe connection part of the gas valve, as described above, the claw part is pushed inward by the annular tapered part, and each of the walls swings in a direction that tilts inward, so that the inclined surface of each of the walls abuts against the periphery of the hexagonal hole and is pushed in as it is. As a result, no gap is generated between the walls and the periphery of the hexagonal hole, and the hexagonal fastener is held without rattling against the guide plate. By swinging each of the constituent walls that make up the hexagonal fastener in an inward direction, no rattle is generated between the pipe connection part of the gas tap and the hexagonal fastener, and further between the hexagonal fastener and the hexagonal hole of the guide plate. This means that the gas tap is securely fixed to the flange plate, and the gas tap can be used safely without any discomfort such as rattling when operated.

[0013] In the above-mentioned flange plate mounting structure for a gas cock, preferably, "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 into which the tapered male threaded cylindrical portion can be screwed, A fastening fitting having an elastic cylindrical body having elasticity in a fastening direction is fitted onto the base end of the tapered male thread cylindrical portion, When the tapered male threaded cylindrical portion is tightened against the tapered female threaded portion until it reaches a final tightening state, the flange plate is configured so as to be elastically pushed toward the gas valve by the elastic cylindrical body of the fixing bracket.

[0014] A fastening fitting equipped with an elastic cylindrical body having elasticity in the tightening direction is fitted onto the tapered male threaded cylindrical portion of the joint, and the tapered male threaded cylindrical portion is screwed into the tapered female threaded portion of the pipe connection portion and tightened until the final tightening state is reached. The fastening force presses the fastening fitting toward the flange plate, but the elastic force of the elastic cylindrical body equipped on the fastening fitting elastically presses the flange plate against the gas valve while adjusting the degree of tightening. This allows the gas valve to be attached to the flange plate even more firmly with the pipe connection portion fitted into the hexagonal fixture of the flange plate. Effect of the Invention

[0015] By simply inserting the pipe connection of the gas valve into the annular tapered portion of the flange body and pushing it inwards, the component walls that make up the hexagonal fastener collapse inward and evenly press against the peripheral surface of the pipe connection, so that the pipe connection of the gas valve can be securely held in a tightly fitted state without rattling within the hexagonal fastener. This makes it easy and reliable to attach the flange plate to the pipe connection of the gas valve. [Brief description of the drawings]

[0016] [Figure 1] 1 is an exploded perspective view showing a state in which a gas valve is attached using a flange plate adopted in a flange plate attachment structure for a gas valve according to an embodiment of the present invention; FIG. [Diagram 2] 1 is an exploded perspective view of a flange plate used in a flange plate mounting structure for a gas valve according to an embodiment of the present invention; FIG. [Diagram 3] 2 is a cross-sectional view (cross-sectional view taken along the line XX in FIG. 1 ) of a flange plate used in a flange plate mounting structure for a gas valve according to an embodiment of the present invention. [Figure 4] 2 is an enlarged cross-sectional view of a main portion of a flange plate mounting structure for a gas cock according to an embodiment of the present invention. FIG. [Diagram 5] FIG. 13 is an explanatory diagram of a conventional structure for attaching a flange plate to a gas cock. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing a state in which a gas valve 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).

[0018] As shown in Fig. 1, the flange plate (1) according to the embodiment of the present invention is an integral assembly of an annular flange main body (100), a hexagonal fastener (2) fitted into the center of the flange main body (100), and a guide plate (15) joined to the flange main body (100) to hold the hexagonal fastener (2) in a non-removable state. The flange main body (100), the hexagonal fastener (2), and the guide plate (15) are all made of metal plates.

[0019] As shown in Fig. 2, the flange main body (100) is composed of a small annular plate portion (11) having a central hole (10a), an annular tapered portion (12) extending from the periphery of the small annular plate portion (11) while expanding in diameter, and a large annular plate portion (13) projecting radially outward from the maximum expanded diameter end portion (12a) of the annular tapered portion (12). Thus, the flange main body (100) is shaped with a tapered recess (10) having the small annular plate portion (11) as its bottom and the annular tapered portion (12) as its peripheral wall, and an annular packing (17) having a hole with the same diameter as the central hole (10a) is placed on the small annular plate portion (11). In addition, an annular back gasket (18) is attached along the periphery of the back surface of the large annular plate portion (13), and at each position symmetrical with respect to the maximum diameter expansion end portion (12a), there are screw insertion holes (19) through which mounting screws (51) can be inserted for screwing into a mounting bracket (not shown) to be positioned on the back side of the wall panel.

[0020] The hexagonal fixture (2) is a hexagonal frame consisting of six structural walls (21) and large enough to be accommodated in the tapered recess (10). Each structural wall (21) is formed in a generally U-shape that opens to one side and is made up of a rectangular plate (211) and a pair of legs (212) that extend from both ends of one long side of the rectangular plate (211) to one side. Adjacent structural walls (21) are connected to each other only at the tips (one end) of the adjacent legs (212), and are otherwise discontinuous. This allows each structural wall (21) to swing inward and outward with the connecting portion at the tip of the leg (212) acting as a base end.

[0021] The connecting portion at the tip of the leg piece (212) is bent inward to form a projection piece (22) that projects at a substantially right angle to the structural wall (21). Further, at the center of the one long side of the rectangular plate (211), an extension piece is bent outward to form a claw portion (20) that protrudes outward.

[0022] Furthermore, 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 to be substantially equal to the inclination angle of the annular tapered portion 12 of the flange main body 100.

[0023] Since the hexagonal fastener (2) has the above-mentioned configuration, the corners of the hexagon are connected only at the one open end, and a protruding piece (22) is provided protruding inward, while the other open end has a shape that expands in diameter following the inclination of the inclined surface (23). When the hexagonal fastener (2) is fitted into the tapered recess (10) of the flange main body (100), as shown in Figure 3, the tip of the claw portion (20) is placed in contact with a predetermined position on the inner peripheral surface of the annular tapered portion (12), and the other open end protrudes from the annular tapered portion (12).

[0024] Then, while inserting the other open end of the hexagonal fastener (2) into the hexagonal hole (14) of the guide plate (15), the flange portion (16) projecting outward from the opposing position on the periphery of the hexagonal fastener (2) is joined to a predetermined position on the large annular plate portion (13). This completes the flange plate (1) consisting of the flange main body (100), the hexagonal fastener (2), and the guide plate (15). In this state, the claw portion (20) of the hexagonal fastener (2) is positioned on the back side of the guide plate (15) and engages with the periphery of the hexagonal hole (14) from the inside, so that the hexagonal fastener (2) is fitted into the tapered recess (10) of the flange main body (100) and is held in a non-removable state by the guide plate (15) in an assembled state.

[0025] Next, a mounting structure for mounting the flange plate (1) to the pipe connection portion (31) of the gas cock (3) will be described. The gas valve (3) and the joint (41) provided at the downstream end of the flexible pipe (44) may be the same as those in the conventional example shown in FIG.

[0026] The hexagonal tubular pipe connection part (31) located upstream of the gas valve (3) is fitted into the other open end part of the hexagonal fixture (2) protruding from the guide plate (15). The other open end part of the hexagonal fixture (2) is enlarged in diameter by the inclined surfaces (23) provided on each of the component walls (21), so that the pipe connection part (31) can be easily fitted in.

[0027] When the pipe connection part (31) is pushed in after fitting, the protruding pieces (22) provided at one open end of each corner part of the hexagonal fastener (2) are pushed by each corner part of the hexagonal cylindrical pipe connection part (31) of the gas valve (3), so that the hexagonal fastener (2) is pushed in together with the pipe connection part (31) of the gas valve (3). Since a substantially triangular gap is formed between each corner part of the hexagonal fastener (2) which is a hexagonal frame body and the arc-shaped outer circumferential surface of the annular packing (17) placed on the small annular plate part (11), if the protruding pieces (22) are accommodated in this gap, the pipe connection part (31) can be pushed in until the open end part of the pipe connection part (31) abuts against the annular packing (17) without being hindered by the protruding pieces (22).

[0028] When the pipe connection part (31) is pushed in, the claw parts (20) protruding outward from each of the constituent walls (21) are pushed inward along the inner surface of the annular tapered part (12), causing each of the constituent walls (21) to swing in a direction in which it falls inward with the protruding pieces (22) as their base ends, as shown in Fig. 4. As a result, the peripheral surface of the pipe connection part (31) of the gas valve (3) is evenly pressed by the inner surface of the rectangular plate (211) of each of the constituent walls (21). At the same time, the inclined surfaces 23 of the walls 21 come into contact with the periphery of the hexagonal hole 14 of the guide plate 15 and are pushed in. This prevents a gap from being formed between the walls 21 and the periphery of the hexagonal hole 14.

[0029] As described above, by simply fitting the piping connection part (31) of the gas valve (3) into the other open end of the hexagonal fastener (2) protruding from the hexagonal hole (14) of the guide plate (15) joined to the flange main body (100) and pushing it inward, the peripheral surface of the piping connection part (31) of the gas valve (3) is evenly pressed by the inner surfaces of the component walls (21) that are swung inwardly, so that the piping connection part (31) can be held in the hexagonal fastener (2) without rattling. In addition, by abutting the inclined surfaces (23) of the component walls (21) against the peripheral edge of the hexagonal hole (14) of the guide plate (15), the hexagonal fastener (2) does not rattle in the hexagonal hole (14) of the guide plate (15), so that the flange plate (1) can be easily attached and held to the gas valve (3) without rattling. Therefore, when a user operates the gas valve (3), the user can use the gas valve with confidence without feeling any discomfort such as the gas valve (3) rattling.

[0030] The mounting structure for mounting the gas valve (3) equipped with the flange plate (1) to a wall plate in the above-mentioned manner will be described with reference to FIG. A joint (41) is connected to a flexible pipe (44) serving as a gas pipe arranged on the back side of the wallboard. The joint (41) is pulled out together with the flexible pipe (44) from an opening provided in the wallboard into the room, and a fixing metal fitting (6) is fitted onto the tapered male threaded cylindrical portion (42) of the joint (41). As shown in the figure, the fixing bracket (6) is formed by fitting an elastic cylindrical body (60) made of an elastic material, for example rubber, onto the inner peripheral edge of a metal ring (61) to form a single unit. The elastic cylindrical body (60) is fitted onto the tapered male threaded cylindrical portion (42) so that the upstream open end edge (62) abuts against the base end side end face (45) of the tapered male threaded cylindrical portion (42).

[0031] As described above, the tapered male threaded cylindrical portion (42) on which the fixing metal fitting (6) is fitted is screwed into the tapered female threaded portion (32) of the pipe connection portion (31) of the gas valve (3). In this way, the flexible pipe (44) is connected to the gas valve (3) via the joint (41).

[0032] Since the flange plate (1) is attached to the pipe connection part (31) of the gas valve (3) in the above-mentioned manner beforehand, when the tapered male threaded cylindrical part (42) is tightened to the tapered female threaded part (32) until it reaches a final tightening state, the upstream open end edge (62) of the elastic cylindrical body (60) is pressed by the base end side end face (45) of the joint (41), and the fixing metal fitting (6) presses the flange plate (1) from the back side toward the gas valve (3) by the elastic force. As a result, the pipe connection part (31) is fitted into the hexagonal fixing device (2) so that the open end edge is strongly pressed against the annular packing (17), and is firmly fixed in that state.

[0033] The flange plate (1) is attached to the periphery of the opening of the wall plate on the indoor side via annular packing (18), and a mounting bracket (not shown) is attached to the periphery of the opening on the back side of the wall plate. The wall plate is sandwiched between this mounting bracket and the flange plate (1), and mounting screws (51) inserted into screw insertion holes (19) provided in the annular plate (11) of the flange plate (1) are screwed into screw holes provided in the mounting bracket and tightened, whereby the gas valve (3) is attached with the periphery of the opening of the wall plate being clamped between the flange plate (1) and the mounting bracket.

[0034] The front surface of the flange plate (1) attached and fixed to the front surface of the wall panel is covered from the left and right with a decorative washer (52) consisting of a pair of washer halves (52a) and (52b). This results in a configuration in which the decorative washer (52) is attached to the front surface of the wall panel and the gas valve (3) is fixed to the wall panel with the pipe connection part (31) protruding from the center.

[0035] By adopting the flange plate (1) of each of the above-mentioned embodiments, the six component walls (21) of the metal hexagonal fixture (2) constituting the flange plate (1) are swung inwardly to evenly press the pipe connection part (31) of the gas valve (3) with the inner surface of each component wall (21), so that the pipe connection part (31) can be held in the hexagonal fixture (2) without rattling. Furthermore, the other open end side of each component wall (21) is provided with an inclined surface (23), and the inclined surface (23) is pushed in while abutting against the periphery of the hexagonal hole (14) of the guide plate (15), so that the hexagonal fixture (2) is held in the hexagonal hole (14) of the guide plate (15) without rattling. In this way, the flange plate (1) can be easily and reliably attached to the pipe connection part (31) of the gas valve (3) without rattling. In addition, by fitting the fixing bracket (6) to the tapered male threaded tubular portion (42) of the fitting (41) in the piping connection portion (31), when the tapered male threaded tubular portion (42) is screwed into the tapered female threaded portion (32) of the piping connection portion (31), the elastic force of the elastic tubular body (60) provided in the fixing bracket (6) presses the flange plate (1) more firmly against the piping connection portion (31) of the gas valve (3). This makes it possible to attach the flange plate (1) to the gas valve (3) more reliably without any awkward feeling such as rattling. [Explanation of symbols]

[0036] (1) Flange plate (2) ·····Hexagonal fixture (3) Gas valve (10a) Central hole (11) Small annular plate portion (12) Annular tapered section (12a) ... Maximum expanded diameter end (13) Large annular plate section (14)...Hexagonal hole (15) Guide plate (20) Claw section (21)...Component wall (22)...Protruding piece (31) Piping connection (100) Flange body

Claims

1. A flange plate mounting structure for a gas valve, in which a flange plate for fixing the gas valve to a surface of a wall plate is attached to an open end of a hexagonal cylindrical pipe connection part of the gas valve, The flange plate is a flange main body including a small annular plate portion having a central hole, an annular tapered portion extending from a periphery of the small annular plate portion while expanding in diameter, and a large annular plate portion extending radially outward from a maximum expanded diameter end portion of the annular tapered portion; a hexagonal frame body consisting of six component walls into which the pipe connection portion of the gas cock can be fitted, the adjacent component walls being connected to each other only at one open end portion, and a hexagonal fastener being fitted into the annular tapered portion from the one open end portion via the maximum diameter expansion end portion; a guide plate which is joined to the large annular plate portion of the flange main body and has a hexagonal hole through which the other open end of the hexagonal fastener faces while holding the hexagonal fastener in a non-removable state, a claw portion is provided at a predetermined position on an outer surface of each of the component walls of the hexagonal fastener, and a protruding piece is provided at a connecting portion of the one open end portion, the protruding piece protruding inwardly at a substantially right angle to the component wall, As the hexagonal fastener is inserted into the annular tapered portion of the flange main body and pushed toward the small annular plate portion, the claw portion is pushed inward in accordance with the inclination of the annular tapered portion while in contact with the annular tapered portion, and accordingly, each of the component walls swings in a direction in which it falls inward with the one open end as a base end, A flange plate mounting structure for a gas tap in which, when the piping connection portion of the gas tap is inserted into the other open end of the hexagonal fastener, each corner of the piping connection portion abuts against each of the protruding pieces.

2. 2. The structure for mounting a flange plate to a gas valve according to claim 1, A flange plate mounting structure for a gas valve, in which an outwardly sloping surface is provided on the other open end side of each of the constituent walls.

3. In the structure for mounting a flange plate to a gas valve according to claim 1 or 2, 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 into which the tapered male threaded cylindrical portion can be screwed, A fastening fitting having an elastic cylindrical body having elasticity in a fastening direction is fitted onto the base end of the tapered male thread cylindrical portion, A flange plate mounting structure for a gas tap, in which when the tapered male threaded cylindrical portion is tightened to the tapered female threaded portion until it reaches a final tightening state, the flange plate is elastically pressed toward the gas tap by the elastic cylindrical body of the fixing bracket.

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