KR102485974B1 - Valve assmebly - Google Patents

Abstract

A valve assembly with improved assembly convenience is provided. According to an embodiment of the present invention, a valve assembly comprises: a main body; a valve unit extending from the main body; and a hose unit disposed on one side of the main body. The hose unit including: a coupling column extending in one direction; a protruding tube extending from the inside of the coupling column; a pressure ring disposed on the coupling column; and a coupling nut which receives the pressure ring and is coupled to the coupling column. The pressure ring includes: an incision part for incising the pressure ring; an inclined end placed on the upper portion; and a step protruding from a lower end of the inclined end.

Description

Valve assembly {VALVE ASSMEBLY}

The present invention relates to a valve assembly.

A valve is a device installed on the path of a pipeline to control the flow rate and pressure of a fluid. A valve is installed in a pipe or equipment to block or control the flow of fluid.

Valves have many types and shapes depending on the purpose of use or function. Various valves include manual valves operated by human power and automatic valves that are operated automatically or remotely operated.

Valves play a role in controlling the flow of fluid in devices such as boilers and hot water distributors. In particular, there are valves having various shapes and functions depending on the type of fluid, temperature, pressure, or use. These valves have a form in which a plurality of parts are coupled to each other. As such, it is important for valves that require assembly to assemble a plurality of parts to a predetermined strength without omission. In addition, if the difficulty of assembling is high, the equipment efficiency is reduced, so it is necessary to configure it to be easily assembled. Therefore, a number of researches and developments are being made to improve assembly efficiency, and as one example thereof, Korean Patent Publication No. 10-2016-0085996 and the like disclose related information.

The problem to be solved by the present invention is to provide a valve assembly with improved assembly convenience.

The problem to be solved by the present invention is to provide a valve assembly with improved sealing force.

The problem to be solved by the present invention is to provide a valve assembly capable of securely fixing a tube while having a simple structure.

The tasks of the invention are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the following description.

A valve assembly according to an embodiment of the present invention for solving the above problems includes a main body, a valve part extending from the main body, and a hose part disposed on one side of the main body, the hose part extending in one direction, a coupling pillar, A protruding tube extending from the inside of the coupling pillar, a pressure ring disposed on the coupling pillar, and a coupling nut accommodating the pressure ring and coupled to the coupling pillar, wherein the pressure ring cuts the pressure ring. It includes a cutout, an inclined end disposed on an upper portion, and a stepped protruding from the lower end of the inclined end, and the coupling nut has a cutting surface arranged to correspond to the inclined end on the inside, and a depression formed from the lower end of the cutting surface. and a protruding jaw protruding from the lower end of the recessed part, wherein the step is accommodated in the recessed part.

In addition, a seating portion including a predetermined space is formed between the coupling pillar and the protruding tube, and a tube inserted into the seating portion may be further included.

In addition, a groove recessed at a predetermined distance from the surface may be formed on an outer wall of the protruding pipe.

In addition, a pressure protrusion protruding from the inner wall of the pressure ring may be further included.

In addition, the pressing protrusion and the groove may be disposed to face each other with the tube interposed therebetween.

In addition, the pressing protrusion and the groove may be alternately disposed with the tube interposed therebetween.

Also, as the protrusion tube is inserted into the tube, the tube may be interposed between the protrusion tube and the pressure ring.

In addition, the pressure ring may have a vertically symmetrical structure.

In addition, the coupling nut and the coupling column are screwed together, and as the coupling nut and the coupling column are screwed together, the coupling column pushes up the pressure ring, and as the pressure ring is pushed up, the inclined end is The pressure ring is pressurized by rising along the cutting surface, and as the pressure ring is pressed, the width of the pressure ring may decrease.

In addition, the cutout portion may extend in an oblique direction.

According to embodiments of the present invention it is possible to provide a valve assembly with improved assembly convenience.

In addition, it is possible to provide a valve assembly with improved sealing force.

In addition, it is possible to provide a valve assembly that reliably fixes the tube while simplifying the structure.

Effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a schematic diagram of a valve assembly according to one embodiment of the present invention.
2 is an exploded schematic view of a valve assembly according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along line Ⅰ′ of FIG. 2 .
4 is a partial perspective view of a valve assembly according to an embodiment of the present invention.
5 is a partial cross-sectional view of a valve assembly according to one embodiment of the present invention.
6 is a partial cross-sectional view of a valve assembly according to one embodiment of the present invention.
7 is a partial cross-sectional view of a valve assembly according to one embodiment of the present invention.
8 is a schematic diagram of a valve assembly according to one embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims.

When an element or layer is referred to as "on" or "on" another element or layer, it refers not only directly on the other element or layer, but also intervening other layers or other elements. all inclusive On the other hand, when a component is referred to as "directly on" or "directly on", it indicates that no other component or layer is intervening.

The spatially relative terms "below", "beneath", "lower", "above", "on", "on", "upper ( upper)" and the like may be used to easily describe the correlation between one component or components and other components or components, as shown in the drawings. Spatially relative terms should be understood as encompassing different orientations of the configuration in use or operation in addition to the orientations shown in the drawings. For example, when reversing a feature shown in the drawings, a feature described as “below” another feature may be placed “above” the other feature. In addition, a component described as being located on the "left side" of other components based on the drawing may be located on the "right side" of other components depending on the viewpoint. Thus, the exemplary term “below” may include directions of both below and above. The composition may also be oriented in other directions, in which case spatially relative terms may be interpreted according to the orientation.

Although first, second, etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features or numbers, The presence or possibility of addition of steps, operations, components, parts, or combinations thereof is not excluded in advance.

The same reference numerals are used for the same or similar parts throughout the specification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 is a schematic diagram of a valve assembly according to one embodiment of the present invention.

Referring to FIG. 1 , a valve assembly according to an embodiment includes a body 100, a valve unit 200, and a hose unit 300.

The main body 100 may be a component that becomes the center of the valve. The body 100 may be made of a rigid material (Rigid). The rigid material may be, for example, a material such as metal or alloy. A main flow path 110 may be formed inside the main body 100 . The main flow path 110 may be a passage through which a fluid or the like passes.

A valve unit 200 may be disposed on one side of the main body 100 . The valve unit 200 may be formed extending from the main body 100 or branched from the main body 100 . In one embodiment, the valve unit 200 may be integrally formed with the main body.

The valve unit 200 may include a handle 210 . In one embodiment, the handle 210 may control a ball valve disposed inside the main flow path 110 . For example, when the handle 210 is rotated in one direction, the ball valve is opened and the main flow path 110 is opened, and when the handle 210 is rotated in the opposite direction, the ball valve is closed and the main flow path 110 is blocked. .

1 illustrates a case where the handle 210 is a manual valve controlled by human power, but is not limited thereto. That is, in other embodiments handle 210 may be an automatic valve controlled remotely or by electrical connection. Also, the handle 210 may be a mechanical handle operated by hydraulic pressure or hydraulic pressure.

A hose unit 300 may be disposed on one side of the main body 100 . The hose unit 300 may be formed extending from the main body 100 or branched from the main body 100 .

A hose unit passage 301 may be formed inside the hose unit 300 . The hose unit flow path 301 is connected to the main flow path 110 , and thus fluid may flow from the main flow path 110 to the hose unit flow path 301 or vice versa.

A detailed description of the hose unit 300 will be made later with reference to FIG. 2 and the like.

A tube 400 may be disposed on one side of the hose unit 300 . One end of the tube 400 may be fastened to the hose unit 300 . A tube passage 410 may be formed inside the tube 400 . When the tube 400 is fastened to the hose part 300, the tube flow path 410 is connected to the hose part flow path 301, and thus the tube flow path 410 passes through the hose part flow path 301 to the main flow path 110. ) can be associated with

2 is an exploded schematic view of a valve assembly according to an embodiment of the present invention.

Referring to FIG. 2 , the hose unit 300 may include a coupling column 310, a protrusion tube 320, a pressure ring 330, and a coupling nut 340.

The coupling pillar 310 may be a part connected to the main body 100 in the hose unit 300 . The coupling pillar 310 may extend in one direction. A screw thread 311 may be formed on one side (or top) of the coupling pillar 310 . The thread 311 corresponds to the threaded portion 345 of the coupling nut 340 to be described later, and the coupling nut 340 may be coupled to the coupling pillar 310 along the thread 311 .

3 is referred to for a more detailed description of the coupling pillar 310 and the protruding tube 320 .

FIG. 3 is a cross-sectional view taken along line Ⅰ′ of FIG. 2 .

Referring to FIG. 3 , a protrusion tube 320 may be disposed on one side of the coupling pillar 310 . The protruding tube 320 may extend from the inside of the coupling pillar 310 . Flow paths are formed inside the coupling pillar 310 and inside the protruding tube 320, and they may be connected to each other to form the hose unit flow path 301.

However, the outer diameter of the coupling pillar 310 may be relatively larger than the outer diameter of the protruding tube 320 . Accordingly, a space may be formed between the coupling pillar 310 and the protruding tube 320 . This space may be formed as one end of the protruding tube 320 extends relatively more than one end of the coupling pillar 310, and the protruding tube 320 extends from the inside of the coupling pillar 310. That is, the coupling pillar 310 may be disposed in a shape that at least partially surrounds the rim of the protruding tube 320 .

A space formed between the coupling pillar 310 and the protruding tube 320 will be referred to as a seating portion 312 . As will be described later, the seating portion 312 may be a space in which one end of the tube 400 is seated. In other words, the seating portion 312 may accommodate one end of the tube 400 . That is, at least a portion of the tube 400 may be inserted into the seating portion 312 .

A groove 321 recessed at a predetermined distance from the surface may be formed on an outer wall of the protruding tube 320 . The groove 321 may extend in a direction in which the surface of the protruding tube 320 is cut by turning. In one embodiment, two or more grooves 321 may be formed. As will be described later, the groove 321 can make the tube 400 more firmly fixed by contacting the tube 400 and increasing frictional force with the tube 400 .

Referring to FIG. 2 , the valve assembly 1000 according to one embodiment may further include a pressure ring 330 .

In the coupled state, one of the protruding tubes 320 may pass through the pressure ring 330 . That is, the inner diameter of the pressure ring 330 may be relatively larger than the outer diameter of the protruding tube 320 . However, the inner diameter of the pressure ring 330 may be substantially the same as or similar to that of the coupling pillar 340, and thus the pressure ring 330 may be mounted on one end of the coupling pillar 310 in a coupled state.

4 may be referred to for a detailed description of the pressure ring 330.

4 is a partial perspective view of a valve assembly according to an embodiment of the present invention.

4 shows the pressure ring 330 . In one embodiment, the pressure ring 330 may include a cutout 331, an inner wall 334, an outer wall 335, an inclined end 332, and a step 333.

The pressure ring 330 has a ring shape as a whole. An incision 331 that completely cuts the pressure ring 330 may be disposed on a part of the outer circumference of the pressure ring 330 . The cutout 331 completely cuts the pressure ring 330, and thus a space is formed between one end and the other end of the cut pressure ring 330, and this space can be defined as the cutout 331. .

In one embodiment, the cutout 331 extends in an oblique direction and may cut the pressure ring 330 . The cutout 331 may extend with the same width.

The pressure ring 330 may be made of a solid metal material. Although the material of the pressure ring 330 is firm, the pressure ring 330 may be temporarily deformed according to external pressure due to the elasticity of the cutout 331 and the metal. (Elastic deformation) That is, when the pressure ring 330 is pressed from the outside to the inside, the width of the cutout 331 decreases, temporarily and partially shrinks slightly, and when the external force is removed, it will be restored to its original shape. can

In one embodiment, an inclined end 332 may be formed at one end (or upper end) of the pressure ring 330 . The inclined end 332 includes an inclined surface and may include a curved surface since it extends along the upper end of the pressure ring 330 .

The inclined end 332 may correspond to the inclined surface 342 of the coupling nut 340 to be described later.

A step 333 may be formed at the lower end of the inclined end 332 . The step 333 is formed at the lower end of the inclined end 332 and may protrude from the surface of the outer wall 334 of the pressure ring 330 at a predetermined interval.

A pressure protrusion 336 protruding from the surface of the inner wall 335 may be disposed on the inner wall 335 of the pressure ring 330 . In one embodiment, the pressure protrusion 336 may extend along the inner wall of the pressure ring 330 . That is, the pressure protrusion 336 extends along the circumferential direction of the pressure ring 330 and may have a ring shape at least partially.

The pressure protrusion 336 may press the tube 400 from the outside by contacting the tube 336 in a coupled state, as will be described later. As the pressure protrusion 336 presses, the frictional force between the tube 400 and the pressure ring 330 becomes stronger, and thus the tube 400 can be more firmly fixed to the hose part 300 .

In one embodiment, a plurality of pressing protrusions 336 may be formed. The plurality of pressing protrusions 336 may extend parallel to each other. When a plurality of pressure protrusions 336 are formed, frictional force between the tube 400 and the pressure ring 330 may be further strengthened.

In one embodiment, the pressing protrusion 336 may be disposed to correspond to the groove 321 described above. That is, the tube 400 is disposed between the pressing protrusion 336 and the groove 321 in a coupled state, and the tube 400 can be more strongly fixed by pressing both of them. A detailed explanation of this will be given in more detail later.

In one embodiment, the pressure ring 330 may have a vertically symmetrical structure. When the pressure ring 330 has a vertically symmetrical structure, the pressure ring 330 may be combined with the pressure ring 330 regardless of top and bottom. That is, accurate assembly is important for a valve assembly composed of a plurality of parts. When the pressure ring 330 has a symmetrical structure regardless of top and bottom, the user can conveniently insert the pressure ring 330 into the coupling nut 340 and couple it. there is. That is, the difficulty of assembling can be reduced and user convenience can be improved.

The pressure ring 330 may be fitted and coupled to the coupling nut 340 . As described above, the diameter or width of the pressure ring 330 may be partially reduced by an external force. That is, the pressure ring 330 in its original state is caught on the protruding jaw 344 of the coupling nut 340 due to the step 333 and cannot be accommodated in the recessed portion 343, but from the outside of the pressure ring 330 When the pressure ring 330 is pushed up while applying pressure, the step 333 of the pressure ring 330 can be accommodated in the depression 343 over the protruding jaw 344 . In this state, when the external force is released, the pressure ring 330 is restored to its original size, and when restored with the step 333 accommodated in the depression 343, the pressure ring 330 is such that the step 333 protrudes ( 344) and may not be separated from the coupling nut 340. That is, the pressure ring 330 can move up and down within the range in which the step 333 can move while being accommodated in the recessed portion 343, but is not separated from the coupling nut 340. In this way, when the pressure ring 330 and the coupling nut 340 are detachably coupled, the user carries them while being coupled and performs assembly while being coupled, thereby promoting convenience of assembly and transportation.

5 is a partial cross-sectional view of a valve assembly according to one embodiment of the present invention.

5 shows a state in which the pressure ring 330 and the coupling nut 340 are coupled in a coupled state.

Referring to FIG. 5 , the structure of the coupling nut 340 will be described, and a coupling method between the coupling nut 340 and the pressure ring 330 will be described.

Referring to FIG. 5 , the coupling nut 340 includes a head portion 341 , an inclined surface 342 , a recessed portion 343 , a protruding jaw 344 and a screw thread 345 .

In one embodiment, the coupling nut 340 may have a general nut shape. In addition to a general nut, the coupling nut 340 may include the following configurations.

The head portion 341 is an upper end of the coupling nut 340 and has the same upper surface as a general nut. A through hole is formed in the central portion of the head portion 341, and accordingly, the coupling nut 340 may have a shape in which an upper end is partially opened.

A cutting surface 342 inclined downward from the inside of the head portion 341 may be disposed inside the coupling nut 340 . The cutting surface 342 includes an inclined surface and may extend along the inner side of the coupling nut 340 . That is, the inclined surface included in the cutting surface 342 is an inclined surface having a predetermined angle, and may be a curved surface.

In the coupled state, the cutting surface 342 may face the inclined end 332 of the pressure ring 330 . That is, the cutting surface 342 may contact the inclined end 332 . In one embodiment, the inclination of the cutting surface 342 and the inclination of the inclined end 332 may be substantially the same. In a state where the cutting surface 342 and the inclined end 332 are in contact with each other, the inclined end 332 rides the cutting surface 342 and the pressure ring 330 can rise or fall.

A depression 343 may be disposed at a lower end of the cutting surface 342 . The recessed portion 343 may be recessed from the lower end of the cutting surface 342 toward the outside of the coupling nut 340 .

The depression 343 may include a space of a certain size. As will be described later, the step 333 of the pressure ring 330 may be accommodated in the depression 343 .

A protruding jaw 344 may be disposed at a lower end of the depression 343 . The protruding jaw 344 may protrude from the lower end of the recessed portion 343 from the outside toward the inside. The protruding jaw 344 may play a role in preventing the pressure ring 330 from being dislodged due to the step 333 accommodated in the recessed portion 343 being dislodged.

A threaded portion 345 may be formed below the protruding jaw 344 . The screw part 345 corresponds to the thread 311 of the coupling post 310 described above, and the coupling nut 340 and the coupling post 310 can be screwed together by the screw 311 and the threaded part 345.

6 is a partial cross-sectional view of a valve assembly according to one embodiment of the present invention.

6 shows a state in which the valve assembly is coupled.

In this specification, 'combined state' may mean a state in which all of the above-described components are combined.

When the disassembly components shown in FIG. 2 are combined, the form shown in FIG. 6 may be obtained.

This will be described in detail.

First, one end of the tube 400 may be seated on the seating portion 312 . A tube flow path 410 is formed inside the tube 400. When one end of the tube 400 is seated on the seating portion 312, the tube flow path 410 includes the hose part flow path 301 and the main flow path 110. can be connected with

Since the outer diameter of the protruding tube 320 is smaller than the inner diameter of the tube 400, the protruding tube 320 may be at least partially inserted inside the tube 400. Accordingly, the outer side of the protruding tube 320 may contact the inner side of the tube 400 .

As the coupling nut 340 and the coupling column 310 are screwed together, the coupling nut 340 may descend.

That is, as the coupling nut 340 is rotated and screwed together, the coupling nut 340 relatively descends, and the coupling pillar 310 may relatively rise.

When the coupling nut 340 continues to descend, the lower end of the pressure ring 330 may come into contact with the upper end of the coupling pillar 310 . When the coupling nut 340 continues to descend while the lower end of the pressure ring 330 and the upper end of the coupling column 310 are in contact, the coupling column 310 may push up the pressure ring 330 . When the pressure ring 330 rises, the inclined end 332 of the pressure ring 330 may ascend along the cutting surface 340 . When rising along the cutting surface 340, the pressure ring 330 may have a pressure determined from the outside toward the inside. This is because when rising along the cutting surface 340, pressure acts on the pressure ring 330 in a direction in which its width decreases.

That is, when the coupling nut 340 is further tightened in a state in which the coupling nut 340 and the coupling column 310 are screwed together, the coupling column 310 pushes up the pressure ring 330, and the pushed up pressure ring 330 can be tightened in the inward direction. The tightened pressure ring 330 pressurizes the tube 400, but inside the tube 400, since the protruding tube 320 is disposed to correspond to the pressure ring 330, the tube 400 is connected to the pressure ring 330. It is more strongly interposed between the protruding tubes 320. As a result, the tube 400 may be more firmly fixed to the hose unit 300 .

As described above, since the tube 400 is made of a flexible material, the tube 400 is compressed between the pressure ring 330, which is a solid material, and the protruding tube 320, and thus a gap through which fluid can leak can be blocked more reliably. That is, sealing force between the hose unit 300 and the tube 400 may be improved.

Also, as described above, the pressure protrusion 336 further presses the tube 400, so that the frictional force between the pressure ring 330 and the tube 400 can be further increased. In addition, in one embodiment, the pressing protrusion 336 and the groove 321 may face each other or may be disposed alternately. Compared to the case where the pressure protrusion 336 is configured alone, when the groove 321 faces the pressure protrusion 336 or is disposed alternately with each other, the tube 400 disposed between the pressure ring 330 and the protruding tube 320 ), it is possible to prevent the tube 400 from escaping. Accordingly, it is possible to provide a valve assembly that stably maintains the flow of the fluid even when the pressure of the fluid increases.

Hereinafter, other embodiments of the present invention will be described. In the following embodiments, differences from the existing embodiments will be mainly described, and redundant descriptions will be omitted.

That is, the description in the existing embodiment can be applied to other embodiments as long as there is no conflict.

7 is a partial cross-sectional view of a valve assembly according to one embodiment of the present invention.

8 is a schematic diagram of a valve assembly according to one embodiment of the present invention.

Referring to FIGS. 7 and 8 , the coupling post 310 may include a tapered portion 313 . In one embodiment, a tapered portion 313 may be formed on the coupling pillar 310 . The tapered portion 313 may be formed at an upper end of the coupling pillar 310 . The tapered portion 313 may include an inclined surface that slopes downward from an upper end of the coupling pillar 310 toward the inside. This inclined surface may correspond to the opposite inclined end 337 of the pressure ring 330 to be described later.

A space is formed between the tapered part 313 and the protruding tube 320, and this space may define a part of the seating part 312.

Referring to FIG. 8 , while the coupling proceeds as described above, the coupling column 310 may push up the pressure ring 330 .

As described above, the pressure ring 330 may have a vertically symmetrical structure. Accordingly, the lower end of the pressure ring 330 may also have an inclined structure like the upper end. For convenience of explanation, this will be referred to as the opposite inclined end 337 .

In one embodiment, the opposite inclined end 337 may contact the upper end of the coupling post 310 . Specifically, the opposite inclined ends 337 may contact the tapered portion 313 of the coupling post 310 . As the coupling nut 340 and the coupling column 310 are screwed together, the tapered portion 313 may push up the opposite inclined end 337 . As the inclined surfaces of the both come into contact with each other and are pushed, the pressure ring 330 may act with external forces in two directions. That is, a force that pushes the pressure ring 330 up in the vertical direction and a force that acts from the outside to the inside (in the direction of pressing the tube 400) may act on the pressure ring 330. As described above, the force acting inward pressurizes the tube 400, so that the coupling between the tube 400 and the hose unit 300 can be more firmly maintained. In the embodiment of FIG. 6 , the force in the horizontal direction (from the outside to the inside) is applied only to the upper end of the pressure ring 330 , but in the embodiment of FIG. 8 , the force in the same direction may also be applied to the lower end of the pressure ring 330 . Accordingly, the force of the pressure ring 330 pressing the tube 400 becomes stronger and uniformly acts on the entire pressure ring 330, thereby strengthening the fixation of the tube 400 and increasing the sealing force.

Although the above has been described with reference to the embodiments of the present invention, this is only an example and does not limit the present invention, and those skilled in the art to which the present invention pertains will do without departing from the essential characteristics of the embodiments of the present invention. It will be appreciated that various modifications and applications not exemplified above are possible. For example, each component specifically shown in the embodiment of the present invention can be modified and implemented. And the differences related to these modifications and applications should be construed as being included in the scope of the present invention as defined in the appended claims.

100: body
200: valve part
300: hose part
110: body flow
340: coupling nut
330: pressure ring
310: combined pillar
230: incision

Claims (10)

main body;
a valve unit extending from the main body; and
Includes a hose portion disposed on one side of the main body, wherein the hose portion accommodates a coupling column extending in one direction, a protruding tube extending from an inside of the coupling column, a pressure ring disposed on the coupling column, and the pressure ring, , Including a coupling nut coupled to the coupling column, wherein the pressure ring includes a cutout portion for cutting the pressure ring, an inclined end disposed thereon, and a stepped protruding from the lower end of the inclined end,
The coupling nut includes a cutting surface arranged to correspond to the inclined end on the inside, a recessed portion recessed from the lower end of the cutting surface, and a protruding step protruding from the lower end of the recessed portion, wherein the stepped portion is accommodated in the recessed portion. becomes,
A seating portion including a certain space is formed between the coupling pillar and the protruding tube, and further comprising a tube inserted into the seating portion,
The incision part completely cuts the pressure ring, and the depression part includes a space of a certain size, and the pressure ring moves up and down within a movable range while the step is accommodated in the space, and the step is the protruding part. It is caught on the jaw and the pressure ring and the coupling nut are not separated,
The pressure ring is temporarily deformed when external pressure is applied, and then restored to its original shape when the external pressure is released. delete According to claim 1,
A valve assembly in which a groove recessed at a predetermined distance from the surface is formed on the outer wall of the protrusion pipe. According to claim 3,
Valve assembly further comprising a pressure protrusion protruding from the inner wall of the pressure ring. According to claim 4,
The valve assembly wherein the pressing protrusion and the groove are disposed to face each other with the tube interposed therebetween. According to claim 4,
The pressure ring has a vertically symmetrical structure,
The valve assembly further includes opposite inclined ends disposed below the pressure ring, and a tapered portion corresponding to the opposite inclined ends is formed inside the coupling column. According to claim 1,
As the protruding tube is inserted into the tube, the tube is interposed between the protruding tube and the pressure ring. According to claim 1,
The pressure ring is a valve assembly having a structure that is vertically symmetrical. According to claim 1,
The coupling nut and the coupling column are screwed together, and as the coupling nut and the coupling column are screwed together, the coupling column pushes up the pressure ring, and as the pressure ring is pushed up, the inclined end moves to the cutting surface. A valve assembly in which the pressure ring is pressurized by rising on the pressure ring and the width of the pressure ring decreases as the pressure ring is pressed. According to claim 1,
The valve assembly extending in an oblique direction.

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