JPH0632849U - Gas cock - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the height of the gas cock so that it can be screwed into piping even in a narrow space. [Structure] The square shaft 21 of the closure 15 housed in the tapered hole 13 of the cock body 11 and the stop washer 18 are coupled, and the knob 32 and the stop washer 18 externally fitted to the tubular portion 12 of the cock body 11 are stopped. The engaging claw 25 provided on the washer 18 and the recessed hole 36 provided on the knob 32 are engaged with each other, and the knob 32 is used to open and close the closure 15 through the stop washer 18. The height dimension h from the center of the hole 14 to the upper end of the knob 32 is reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a gas cock having a reduced vertical height.

[0002]

[Prior art]

 As shown in FIGS. 7 and 8, the conventional gas cock installed in the middle of the pipeline is provided with screw holes 52 on both sides of the cock body 51, and is provided continuously in the upper cylindrical portion 53 of the cock body 51. The stopper 55 is pressed into the tapered hole 54 by a spring 56 so as to be rotatable, and a stopper 57 and a stop washer 58 are provided in the cylindrical portion 53 in order to regulate the rotation range of the stopper 55 to a constant value. A drive shaft 60, which is assembled and protrudes from the upper end of the closure 55, engages with the angular shaft 59 and is rotatably held by the cylindrical portion 53. The drive shaft 60 is provided with a knob. 61 is externally fitted and fixed by a screw 62, and the knob 55 is rotated by a knob 61.

[0003]

[Problems to be solved by the device]

 By the way, in order to assemble the above-described gas cock into the pipe, the cock main body 51 must be rotated to screw the screw hole 52 into the pipe in order to screw and connect the cock body 51 to the pipe.

However, in the conventional gas cock, since the drive shaft 60 is used to connect the closure 55 and the knob 61, the height dimension H from the center of the screw hole 52 to the upper end surface of the knob 60 is large, and the screw cock Since this height dimension H sometimes becomes the radius of gyration, it is necessary to secure a space of at least the height dimension H or more around the portion where the gas cock is arranged. When it is installed, if it is difficult to secure the above space, there will be a problem that the gas cock cannot be attached.

Further, since the drive shaft 60 and the screw 62 are used for mounting the knob, the number of parts is increased and the manufacturing cost is increased accordingly, and since the mounting of the knob is performed by the screw 62 penetrating from the top, There is also a problem that the waterproof function of the portion through which 62 penetrates deteriorates and water enters the cock body 51.

In order to solve the above problems, the present invention reduces the height dimension from the center of the screw hole to the upper surface of the knob as much as possible, so that even a narrow space can be attached to a pipe. Therefore, the challenge is to provide a gas cock that has fewer parts and is also excellent in waterproofness.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention rotatably accommodates a closure in a tapered hole provided in series in the tubular portion of the cock body, and the rotation of the closure in the tubular portion. A stop with a stopper fixed to the tubular part to regulate the angle and an engaging claw that fits over the upper end angular axis of the closure and rotates integrally with the closure and penetrates the restriction hole of the stopper. Incorporating a washer, project the engaging claws of the stop washer above the upper end of the tubular part of the cock body, and fit the engaging claws to the flat knob that is externally fitted to the tubular part of the cock body. In addition, a recessed hole that connects the knob and the closure in the rotational direction is formed via a stop washer, and a mechanism for retaining the knob is provided between the flat knob and the tubular part of the cock body. It is a thing.

[0008]

[Action]

 The closure and knob can be connected in the rotational direction by the stop washer housed in the tubular part of the cock body, so that only the thickness of the knob protrudes from the upper end of the tubular part of the cock body, and the knob from the center of the screw hole. The dimension down to the top surface of the cock is reduced, which reduces the turning radius of the cock when screwed into the pipe, and enables mounting even in a narrow space.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 to 6 of the accompanying drawings.

As shown in the drawing, the cock body 11 is provided with a taper hole 13 communicating with the inside of the tubular portion 12 provided at the upper part and screw holes 14, 14 communicating with both sides of the taper hole 13 to form a taper. The closing member 15 inserted into the hole 13 so as to be slidably rotated is provided with a through hole 16 for connecting and disconnecting the screw holes 14, 14.

Inside the tubular portion 12 of the cock body 11, a stopper 17 that is a rotation stop with respect to the cock body 11 and a stop washer 18 located on the lower surface side of the stopper 17 are moved upward by a C ring 19. A spring 20 for constantly pressing the closing member 15 into the tapered hole 13 is contracted between the stopper washer 18 and the upper end surface of the closing member 15 at the same time. Pressed against the bottom surface.

The stopper 17 and the stop washer 18 are for restricting the rotation range of the closure 15 to be constant, and there are two types, 90 ° and 180 °.

FIGS. 1 to 3 show a structure for 90 °, in which a stopper 17 has restriction holes 23, 23 on both sides of a central hole 22 into which an angular shaft 21 provided at an upper end of a closure 15 is rotatably fitted. The stop washer 18 is formed by forming a square hole 24 into which the square shaft 21 fits, and engaging claws 25 and 25 that fit into the regulation holes 23 and 23 on both sides of the square hole 24. Are formed in a standing manner, and the restriction holes 23, 23 and the engaging claws 25, 25 are set in a relationship of being rotatable within a range of 90 °.

Therefore, the stop washer 18 and the closing member 15 are integrally connected in the rotating direction, and the turning angle of the closing member 15 is restricted to 90 °.

5 and 6 show a structure for 180 °. It should be noted that parts having the same functions as those for 90 ° are given the same reference numerals in the description. On the stopper 17, a regulation hole 27, which is slightly larger than a semicircle, is provided around a central hole 26 in which the angular shaft 21 of the closure 15 is rotatably accommodated, and a notch 28 is formed on the outer periphery of one end of the regulation hole 27. Is provided.

In addition, the stop washer 18 has a square hole 24 formed in the center thereof, into which the square shaft 21 is fitted, and engagement claws 25, 25 that fit into the regulation holes 27 are provided on both sides of the square hole 24. One of the engaging claws 25a is formed so that its root portion is bent in a stepped shape toward the center side, and the root portion is housed in the central hole 26 and can be rotated. .

A protrusion 29 is provided on the upper surface of the stop washer 18 near the outer periphery between the engaging claws 25 and 25a, and when the closure 15 is in the open phase, the protrusion 29 falls into the notch 28, and at this time, the stop is stopped. The washer 18 collides with the lower surface of the stopper 17 to generate a metallic sound, and the opening of the cock is notified by sound and impact.

Therefore, if the stopper washer 18 is pushed down from the open phase of the closing member 15 to disengage the projection 29 from the notch 28, the closing position can be changed by rotating the closing member 90 in either the left or right direction by 90 °. Can be

In any case, the stopper 17 is provided with the protrusions 30 provided on both sides of the outer periphery of the stopper 17 so as to fit into the notches 31 provided in the tubular portion 12 of the cock body 11 to prevent the stopper 17 from rotating. It is in the shape of.

As shown in FIG. 1, the stopper 17, the stop washer 18, and the square shaft 21 of the closing member 15 are housed inside the tubular portion 12 of the cock body 11 and are provided on the stop washer 18 as a pair. Only the engaging claws 25, 25 of the above project from the upper end surface of the tubular portion 21.

The knob 32 arranged on the upper portion of the tubular portion 12 of the cock body 11 has an annular wall 34 fitted around the lower portion of an upper wall 33 formed in a flat and substantially disc shape. It is formed by forming bulging portions 35, 35 which are connected to each other and which protrude outward in a substantially semicircular shape on both sides of the axial wall of the annular wall 34. The annular wall 34 is formed on the inner surface of the upper wall 33. At the positions corresponding to the engaging claws 25, 25 in the state where the engaging claws 25, 25 are fitted onto the tubular portion 12, concave holes 36, 36 into which the engaging claws 25, 25 are fitted are provided.

The knob 32 is rotationally connected to the closing member 15 via the stopper washer 18 by fitting the recessed holes 36, 36 and the engaging claws 25, 25, and the closing member 15 is rotated by the knob 32. It can be opened and closed.

A retaining mechanism 37 is provided on the inner periphery of the annular wall 34 of the knob 32 and on the outer periphery of the tubular portion 12 so that the knob 32 is rotatable with respect to the cock body 11 and is in a retaining state. There is.

The retaining mechanism 37 includes annular grooves 38 and 39 provided in the annular wall 34 and the tubular portion 12, respectively, and a metal wire rod formed in a partially cut ring shape. The annular groove 39 of the tubular portion 12 is deep enough to accommodate the entire wire diameter of the stationary ring 40, and the annular groove 38 provided on the inner circumference of the annular wall 34 has the above-mentioned wire diameter. The fixing ring 40 has a diameter-expanding elasticity that presses into the annular groove 38 of the annular wall 34.

To attach the knob 32 to the cock body 11, first, the fixing ring 40 is fitted into the annular groove 39 of the tubular portion 12, and the bent portions 40a, 40a at both ends of the ring 40 are pulled with a fine tool. The fixing ring 40 is shrunk to reduce the diameter of the fixing ring 40 so that the fixing ring 40 is housed in the annular groove 39.

Next, the annular wall 34 of the knob 32 is externally fitted and inserted into the tubular portion 12, the arcuate concave portion 35 a formed on the inner circumference of the bulging portion 35 or 35 is externally fitted to the tool, and the concave hole 36, The phase of the knob 32 is selected so that 36 fits into the engaging claws 25, 25, and when the knob 32 is completely fitted into the tubular portion 12, the tool is pulled out from the arc-shaped recess 35a and the fixing ring 40 When the diameter of the fixing ring 40 is released, the fixing ring 40 is expanded and fitted over both annular grooves 38 and 39 as shown in FIG. 1, and when the knob 32 is pulled out, the fixing ring 40 is inserted into the tubular portion 12. It engages with the upper end of the annular groove 39 and is in a retaining state.

As described above, the knob 32 is connected to the closing member 15 via the stop washer 18 so that only the thickness of the flat upper wall 33 protrudes from the upper end of the tubular portion 12. Therefore, the height h from the center of the screw holes 14, 14 to the upper end surface of the knob 32 can be made significantly lower than that of the conventional gas cock shown in FIG. 1. By the way, the height of the conventional gas cock is high. The height dimension H was 52 mm, whereas the height dimension h in the gas cock of the present invention was 32 mm, and the radius of gyration at the time of screwing can be reduced by 20 mm compared with the conventional one.

Further, by directly attaching the knob 32 to the stop washer 18, the use of a drive shaft which has been conventionally required can be omitted, the number of parts can be reduced, and the knob 32 completely covers the upper portion of the cock body 11. Water resistance is also improved.

[0029]

[Effect of device]

 As described above, according to the present invention, since the engaging claw of the stop washer that is coupled to the closure in the rotation direction and the recessed hole of the knob are fitted together, the closure and the knob are coupled in the rotation direction. Since the flat knob is located directly on the body, the height dimension from the center of the screw hole of the cock body to the top surface of the knob can be reduced, and the turning radius when screwing into the pipe becomes smaller, The gas cock can be installed even in narrow space conditions where the pipe is near the wall.

Also, by connecting the knob to the stop washer, the number of parts can be reduced, cost can be reduced, and since the knob can completely cover the upper part of the cock body, the waterproof property can be improved. Become.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a gas cock according to the present invention.

FIG. 2 is a transverse plan view of the same as above.

FIG. 3 is an exploded perspective view of essential parts of the same.

FIG. 4 is an exploded perspective view of a cock body and a fixing ring.

FIG. 5 is a cross-sectional plan view in the case of a 180 ° rotary type closure.

FIG. 6 is an exploded perspective view of a stopper and a stop washer in the above.

FIG. 7 is a partially cutaway front view showing a conventional gas cock.

FIG. 8 is a side view of the above.

[Explanation of symbols]

 11 Cock Main Body 12 Cylindrical Part 13 Tapered Hole 14 Screw Hole 15 Closer 17 Stopper 18 Stop Washer 25 Engaging Claw 32 Knob 34 Annular Wall 36 Recessed Hole 37 Stopping Mechanism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsuo Arima 4-140 Ikuno Nishi, Ikuno-ku, Osaka Inside Minato Manufacturing Co., Ltd. (72) Inventor Toshihiro Arima 4-140 Ikuno-nishi, Ikuno-ku, Osaka Minato Manufacturing Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A closure is rotatably housed in a taper hole provided in series in a tubular part of a cock body, and the tubular part is provided in the tubular part.
In order to regulate the rotation angle of the closure, a stopper fixed to the tubular portion and an engaging claw that fits over the upper end angular axis of the closure and rotates together with the closure and penetrates the restriction hole of the stopper. A stop washer provided with the engaging washer, the engaging claw of the stop washer is projected above the upper end of the tubular portion of the cock body, and the engaging pawl is fitted on the flat knob that is externally fitted to the tubular portion of the cock body. Is a gas cock that is fitted with a stop washer to form a recessed hole that connects the knob and the closure in the rotational direction, and a knob retaining mechanism is provided between the flat knob and the tubular portion of the cock body.