KR20150067990A - Gate valve with sectional flange using snap ring - Google Patents

Abstract

The present invention relates to a flange-assembled gate valve using a snap ring and, more specifically, relates to a flange-assembled gate valve using a snap ring which is easily assembled or disassembled from an underground pipe while having a simple structure. The gate valve comprises: a valve housing having flange parts connected to two underground pipes on both left and right sides, and a passage continued from the passage of the two underground pipes; and a disk installed in the valve housing to open and close the passage of the valve housing. One among the two flange parts comprises: a linear pipe part having one or more grooves circumferentially extended on an outer surface of the end while having a constant outer diameter; a coupling part having a circular ring structure to be fitted in the linear pipe part, comprising one or more O-ring grooves wherein the O-rings are inserted and a holding protrusion formed on the inner surface facing the outer surface of the pipe part, and a flange arranged on the outside to be coupled to the underground pipe and attached or separated from the flange of the underground pipe while moving in a state where the coupling part is fitted in the pipe; and a snap ring assembled to the groove of the pipe part after the coupling part is assembled to the pipe part, and interfered with the hanging protrusions to prevent the separation of the coupling part.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a flange-

The present invention relates to a wiping valve, and more particularly, to a wiping valve, in which a flange formed on a wiping valve is movable for coupling with a submerged pipe such as a water pipe or a sewage pipe, To a flange-assembled water-removal valve using a stop ring.

Generally, the wastewater valve is installed in the underground buried pipe such as a water pipe or a sewer pipe which forms a flow path for the transportation of the fluid, and it is installed in the underground buried pipe when cleaning or repairing the underground pipe or branching the water pipe or sewage pipe. It is blocking the Euro.

The damper valve is composed of a valve housing having flanges on both left and right sides for coupling with an underground buried pipe, and a disk which is moved by a user's operation in the valve housing and opens and closes a flow passage formed inside the valve housing .

In order to prevent the leakage of fluid from the joint where the drain valve is connected to the underground pipe, the flange of the drain valve and the flange of the underground pipe must be inserted It is preferable to closely adhere to each other.

However, in the above case, there is a problem that it is difficult to insert a drain valve between two neighboring underground buried pipes or to dismantle the drain valve installed between two underground buried pipes from underground buried pipes.

In view of such a problem, Korean Utility Model Registration No. 0349676 discloses a wedge valve coupling device that allows a wiping valve to be easily replaced.

1 is a cross-sectional view showing a structure of a coupling device of a conventional wastewater valve.

The coupling device of the water valve disclosed in the above-mentioned design has a structure in which one side of the body 11 of the water valve 10 is formed in a straight shape and a flange adapter 50 is inserted in a straight body 11 to connect the water pipe 2 .

The flange adapter 50 includes a moving flange 51, a body flange 52 and a tightening bolt 53. The moving flange 51 and the body flange 52 are inserted into a straight body The moving flange 51 and the body flange 52 are fastened with the tightening bolts 53 and the body flange 52 is fastened to the flange 2a of the water pipe 2 by bolts.

According to such a flange adapter 50, the tightening bolt 53 for fastening the moving flange 51 and the body flange 52 is loosened and the flange 2a of the water pipe 2 and the body flange 52 are fastened together And then moving the moving flange and the body flange toward the drain valve, a space is formed between the drain valve and the water pipe, so that the drain valve can be easily dismantled.

However, the wiping valve having the above-described coupling device has a complicated structure, and there is a problem in that workability is deteriorated because a large amount of operation is required for binding or disengagement of the moving flange and the body flange.

Registered Utility Model No. 0349676 in the Republic of Korea (2004.05.08.)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a flange-assembled wedge valve using a stop ring having a simple structure and capable of easily engaging or disengaging with an underground buried pipe have.

In order to achieve the above objects and to solve the conventional drawbacks of the present invention, flanges connected to two neighboring underground buried pipes are provided on both sides of the flange, And a disk provided in the valve housing for opening and closing the flow path of the valve housing, wherein the flange portion of at least one of the two flange portions has a uniform outer diameter, A straight tubular portion having at least one groove extending along the straight tubular portion; And a flange for engaging with the underground pipe is formed on the outer side of the underground pipe, and a flange for engaging with the underground pipe is provided on the inner surface of the pipe pipe. An engaging portion which is engaged with the tubular portion and makes the flange come into close contact with or spaced from the flange of the underground buried pipe; And a stop ring assembled into the groove formed in the tube portion after the coupling portion is assembled to the tube portion, and interfering with the engagement jaw to prevent the engagement portion from being disengaged.

The grooves may be formed in a plurality of grooves, and the plurality of grooves may be spaced apart from each other at an outer surface of the tube portion.

According to the present invention having the above-described features, it is possible to easily secure a space between the dam valve and the underground buried pipe by moving the engaging part when the dam valve is installed or disassembled, thereby facilitating the installation and disassembly of the dam valve There is an effect that can be done.

Furthermore, since the operation of the wiping valve is simple as a simple structure, and a large amount of operation is not required when the wiping valve is installed and disassembled, the workability can be improved.

1 is a cross-sectional view showing a structure of a coupling device of a conventional water valve,
FIG. 2 is a sectional view showing the structure of a water control valve according to a preferred embodiment of the present invention,
3 is an exploded perspective view showing the structure of a water control valve according to a preferred embodiment of the present invention,
FIG. 4 is a cross-sectional view illustrating a decompression valve according to a preferred embodiment of the present invention, FIG.
5 is a cross-sectional view showing a state in which the engaging part of the present invention is moved to the inside of the tube part.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

3 is an exploded perspective view showing the structure of a water control valve according to a preferred embodiment of the present invention, FIG. 4 is a cross-sectional view of a preferred embodiment of the present invention FIG. 5 is a cross-sectional view illustrating a state in which the coupling portion of the present invention is moved to the inside of the tube portion. FIG.

The flange-assembled water-repellent valve using the stop ring according to the present invention comprises a valve housing 100 and a disc 200.

The disc 200 moves inside the valve housing 100 and opens and closes a flow path formed inside the valve housing 100.

As is well known, the disc 200 is installed in the valve housing 100 to move up and down by the rotation of the screw shaft 210 to open and close the flow passage. The upper end of the screw shaft 210 is connected to the valve housing 100, (Not shown) protruding from the upper portion of the handle 100. Such a disc 200 can be constructed by directly applying a disc used in a wiping valve which is widely used, and a detailed description of the installation structure and function of the disc 200 will be omitted.

As is well known, the valve housing 100 is provided with flanges 110 and 120 connected to two adjacent underground buried pipes 1 and 2 on both right and left sides thereof. As shown in FIG.

The valve housing 100 according to the present invention is characterized in that at least one of the two flange portions 110 and 120 has a flange portion 110 formed of a tube portion 111 and a joint portion 112 and a stop ring 113 Which is different from the conventional valve housing. Of course, the two flange portions 110 and 120 provided on both the left and right sides of the valve housing may be composed of the tube portion 111, the coupling portion 112 and the detent ring 113, Only the flange portion 110 on the other side is constituted by the tube portion 111, the engaging portion 112 and the detent ring 113. The flange portion 121 and the flange 122 are integrally formed.

The tubular portion 111 has a uniform outer diameter and an outer surface of the tubular portion 111 is formed on the outer surface of the tubular portion 111. In the flange portion 110, And a groove 1111 extending along the circumference.

At this time, the groove 1111 is formed to have a width b corresponding to the thickness of the stop ring 113, which portion is engaged with the stop ring 113. The grooves 1111 may be formed by a plurality of grooves 1111 so that the position where the stop ring 113 is assembled to the tube portion 111 can be changed by the operator. And may be formed to be spaced apart from each other by a predetermined distance.

The coupling part 112 is coupled to the flange 2-1 formed in the underground buried pipe 2 and has a structure separated from the pipe part 111 and assembled to the pipe part 111. [

The coupling portion 112 is formed in a circular ring structure so as to be able to be fitted into the tube portion 111 by surrounding the outer surface of the tube portion 111. The coupling portion 112 is formed with a flange 2-1 formed on the underground tube 2, And a flange 1121 having a plurality of fastening holes 1121a through which the bolts for binding are formed.

An O-ring groove 1122 is formed on the inner surface of the coupling portion 112 facing the outer surface of the tube portion 111 to provide an O-ring 114 for forming a hermetic structure between the tube portion 111 and the coupling portion 112 Two O-ring grooves 1122 are formed on the inner surface of the coupling portion 112 so that two O-rings can be installed side by side.

A locking protrusion 1123 is formed on the inner surface of the coupling part 112 to prevent the coupling part 112 from being detached from the tube part 111 by interfering with the stop ring 113 assembled to the tube part 111.

The engaging portion 112 moves along the tube portion 111 while being fitted to the tube portion 111, and is brought close to or away from the underground tube. Therefore, the operator can move the coupling part 112 according to the situation, thereby securing a required working space between the water-discharging valve and the underground buried pipe.

The stop ring 113 is assembled in a groove 1111 formed in the tube portion 111 to prevent the coupling portion 112 from being separated from the tube portion 111 and can be constituted by a normal C-type stop ring.

The process of disposing the wiping valve of the present invention constructed as described above in a submerged pipe and separating the wiping valve installed as described above will be described. The operation and effect of the wiping valve of the present invention will be described more clearly.

The coupling part 112 is assembled so that the coupling part 112 is fitted in the tube part 111 formed in the valve housing 100 and then the locking ring 113 is assembled in the groove 1111 formed in the tube part 111 , Thereby constituting a wiping valve according to the present invention.

The drain valve constructed in this way is arranged in a required position for connection with the underground buried pipe.

When the disposing valve is arranged in a state where the engaging portion 112 assembled to the tube portion 111 is moved to the inside of the tube portion 111 during the disposing operation of the disinfection valve, So that there is an advantage that the disposing operation of the wiping valve can be carried out more smoothly.

When the disposing valve is completed, the engaging portion 112 located inside the tubular portion 111 is moved to the outside of the tubular portion 111, that is, toward the end of the tubular portion 111, The flange 1121 is brought into close contact with the flange 2-1 formed in the underground buried pipe 2 and the two flanges are fastened with bolts and nuts to complete the installation work of the wipe valve.

Meanwhile, in order to separate the wastewater valve from the underground buried pipe for repair or replacement of the wastewater valve, the flange 1121 of the engaging portion 112 and the flange 2-1 of the underground buried pipe 2 are fastened When the bolt is disassembled and then the engaging portion 112 is moved to the inside of the tube portion 111, a void space is formed between the damper valve and the underground buried pipe. Therefore, a work space for repairing or replacing the damper valve is formed There is an advantage that the related work can be easily performed.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
100: valve housing 110: flange portion
120: flange portion 200: disk
111: tube 1111: groove
112: engaging portion 1121: flange
1122: O-ring groove 1123:
113: stop ring 114: O-ring

Claims (2)

A valve housing 100 provided with flanges 110 and 120 connected to two adjacent underground buried pipes at left and right sides and having a flow path continuous with the flow paths of two underground buried pipes, A discard valve comprising a disc (200) provided in a valve housing (100) for opening and closing,
The flange portion (110) of at least one of the two flange portions (110, 120)
A straight tube portion 111 having a uniform outer diameter and formed on the outer surface of the end portion at least one groove 1111 extending along the circumference;
One or more O-ring grooves 1122 and an engagement protrusion 1123 are formed on the inner surface of the tube portion 111 to face the outer surface of the tube portion 111 so that the O-ring is inserted into the straight tube portion 111. And a flange 1121 for coupling with the underground buried pipe is provided on the outer side so that the flange 1121 is fitted to the flange of the underground pipe while being sandwiched by the pipe portion 111, (112); And
The stopper 112 is assembled in the groove 1111 formed in the tube portion 111 after the engaging portion 112 is assembled to the tube portion 111. The detent 1123 interferes with the engaging jaw 1123, Ring (113). ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
Wherein the grooves are formed in a plurality of grooves and a plurality of grooves are formed on the outer surface of the tube portion at predetermined intervals.

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