KR20240130259A - vacuum sealed pipe coupler - Google Patents

Abstract

The present invention relates to a vacuum-tight pipe coupler, and more specifically, to a vacuum-tight pipe coupler in which, when a pipe is inserted into the coupler and a packing member is pressurized, the packing member applies a reaction force by a support packing and a support ring to the front end of the pipe, thereby primarily sealing the space between the front end of the pipe and the packing member, and a packing ring and a guide packing are arranged between the pipe and the coupler body to secondarily seal the space between the pipe and the coupler body when a vacuum or fluid pressure is applied, thereby preventing fluid injected into a pipe connected to the coupler from leaking and providing the maximum fluid-injection space.

Description

vacuum sealed pipe coupler

The present invention relates to a vacuum-tight pipe coupler, and more specifically, to a vacuum-tight pipe coupler in which, when a pipe is inserted into the coupler and a packing member is pressurized, the packing member applies a reaction force by a support packing and a support ring to the front end of the pipe, thereby primarily sealing the space between the front end of the pipe and the packing member, and a packing ring and a guide packing are arranged between the pipe and the coupler body to secondarily seal the space between the pipe and the coupler body when a vacuum or fluid pressure is applied, thereby preventing fluid injected into a pipe connected to the coupler from leaking and providing the maximum fluid-injection space.

Water and gas, which are absolutely necessary for residential living and industrial facilities, are usually transported from long distances through pipes, so piping work is performed by cutting and connecting multiple pipes manufactured to a certain length according to the installation environment to form pipelines.

At this time, when connecting pipes due to reasons such as a need to extend the length of the pipe being limited or a change in the location of the pipeline, a pipe coupler is used.

Conventionally, pipes were connected using heat-shrinkable sheets, watertight bands, watertight sockets, and heat-melting sheets.

However, in the case of a connection method using a heat shrinkable sheet, the connecting part of the pipes is wrapped with a sheet and then shrinked using heat to tightly connect them, so construction is impossible in environments such as underwater, and the bonding strength of the sheet is weak, so the coupler often breaks during construction.

In addition, in the case of a connection method using a watertight band, a heat-shrinkable sheet is generally used to tightly bond the connection part, and then it is wrapped with a watertight band and compressed and fastened using bolts and nuts. In the case of this method, the construction procedure and construction equipment are complicated, so not only does it take a lot of time and money for construction, but there is also the disadvantage of having to separately manufacture a watertight socket depending on the pipe diameter.

In addition, in the case of a connection method using a watertight socket, the watertight socket is wrapped around the connecting part of the pipe and the gap between the pipe and the watertight socket is narrowed through a rubber ring to form a tight connection. This method is not only difficult to apply to pipes with a large tolerance in the outer diameter, but also has the disadvantage that the pipe and the watertight socket are not firmly connected, making it easy for water or gas to leak.

In addition, in the case of a connection method using a heat-melting sheet manufactured by pressing an electric heating coil onto a synthetic resin sheet, the connecting part of the pipe is wrapped with the heat-melting sheet, and current is applied to the coil to melt the synthetic resin sheet and the pipe and fuse and join them. This method is also difficult to apply when there is a tolerance on the outer diameter of the pipe, and also has the disadvantage that underwater construction is impossible.

Therefore, a vacuum-tight pipe coupler is needed that is easy to construct regardless of the skill level of the worker when connecting pipes, is firmly connected between pipes by a coupler to minimize separation or breakage of the connected portion due to various external factors, and prevents leakage of fluid flowing through the pipe through vacuum sealing.

Republic of Korea Patent No. 10-1410280 (announced on June 20, 2014) Republic of Korea Publication Patent No. 10-2005-0098347 (Published on October 12, 2005)

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vacuum-sealed pipe coupler which has excellent airtightness and can prevent fluid leakage by sealing the space between a body and an inserted pipe.

In addition, another object of the present invention is to provide a vacuum-tight pipe coupler that can firmly connect adjacent pipes without a separate fastening member and is easy to construct regardless of the skill level of the worker.

Meanwhile, the purposes of the present invention are not limited to the purposes mentioned above, and other purposes not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above-described object, the present invention relates to a pipe coupler for connecting pipes through which a fluid having a constant pressure moves, the pipe coupler comprising: a body in a cylindrical shape in which a hollow (hereinafter referred to as a "hollow body") is formed so that one opening and the other opening penetrate each other, a first pipe of the pipes being inserted into the one opening and a second pipe being inserted into the other opening; a stopper having a ring shape and an outer circumference thereof contacting and being fixed to an inner circumference at the center of the longitudinal direction of the hollow body; a packing part arranged so that one end of the hollow body faces the stopper and the other end faces the one opening, and blocking a fluid flowing into the first pipe by contacting the end of the first pipe from leaking into a space between the first pipe and the inner circumference of the body; And a pipe fixing member, which is arranged so that one side faces the packing member and the other side faces the one-side opening inside the hollow body, and wraps and fixes the outer circumferential surface of the first pipe so that the first pipe being inserted does not fall out of the body; wherein the packing member includes: a packing member that allows the front end of the first pipe inserted into the body to come into contact with and be sealed; a supporting packing that is arranged between the packing member and the body and supports the packing member, which receives pressure from the first pipe, from moving toward the stopper a predetermined distance; The present invention provides a vacuum-tight pipe coupler, comprising: a support ring that is mounted on the stopper and has a bent portion formed in a ring shape with an inner circumference bent toward the one-sided opening, and on which the packing member and the support packing are mounted so as to prevent the packing member and the support packing from being excessively expanded or detached toward the inner diameter center of the body due to external pressure; and wherein the internal components of the body are provided in a form that is symmetrical to each other with respect to the stopper.

In a preferred embodiment, the packing portion: a pair of packing rings, which are O-rings that are sequentially arranged in a direction from the packing member toward one opening inside the hollow body and seal a space between an outer peripheral surface of a first pipe inserted into the body and an inner peripheral surface of the body; a guide packing arranged between the pair of packing rings and having an inner peripheral surface in contact with the first pipe formed as a tapered surface whose diameter becomes narrower from both ends in the longitudinal direction toward the center, so that the pair of packing rings guide movement along the tapered surface a predetermined distance when contracted or expanded by external pressure; And it further includes a fixing member which is arranged between the packing rings and the packing member, the inner circumference having the same diameter in the longitudinal direction and the outer circumference having a tapered surface whose outer diameter increases from one end to the center; When the first packing ring arranged on the stopper side of the pair of packing rings moves due to external pressure, the first packing ring is pushed in between the fixing member and the inner circumference of the body along the tapered surface of the fixing member to prevent the diameter of the first packing ring from shrinking below a certain size.

In a preferred embodiment, each contact surface where the packing member and the supporting packing come into contact with each other is formed as a tapered surface whose diameter becomes narrower in the direction toward the stopper, so that when the front end of the first pipe presses the packing member toward the stopper, the packing member is pushed down toward the stopper along the tapered surface of the contact surface and the supporting packing is pushed up in the opposite direction of the stopper along the tapered surface of the contact surface, so that the inner diameter of the packing member expands, whereby the front end of the first pipe seals the space between the packing members.

In a preferred embodiment, the inner surface of the packing member facing the stopper is formed with a seating groove of the predetermined length, and the bent portion of the support ring is seated in the seating groove of the packing member to prevent the packing member from being separated from the support ring, while the inner surface of the packing member not supported by the support ring can be expanded to a predetermined size or more.

In a preferred embodiment, the pipe fixing member includes: a circular spring that expands when the first pipe is inserted inward and contracts and presses the side surface of the inserted first pipe by elastic restoring force to fix the first pipe to the body; and a spring support member that is arranged between the circular spring and the packing member and supports the circular spring that expands when the first pipe is inserted toward the one-side opening.

In a preferred embodiment, the pipe fixing member: is disposed on one side of the circular spring and is formed in a ring shape, has a plurality of inner protrusions protruding on the inner surface, and ends of the inner protrusions are bent at a predetermined angle in the direction in which the first pipe is inserted, and when the first pipe is inserted inward, the inner protrusions press the outer surface of the first pipe to fix it to the body; and a support washer disposed on one side of the fixing washer and is formed in a ring shape, has an inner surface bent at an angle corresponding to the inner protrusions of the fixing washer, has an inner diameter larger than the inner diameter of the fixing washer, and supports the first pipe so as to prevent the inner protrusions from yielding and bending in the direction in which the first pipe is pulled out when the first pipe is separated from the body.

In a preferred embodiment, a closing cap is further provided, which is arranged on one side of the support washer and is formed in a ring shape, but has an inner circumference bent so that it faces the one-side opening.

In a preferred embodiment, the inner circumferential surface of the body is formed with, in sequence from each opening toward the center in the longitudinal direction, a fixing projection on which the closing cap can be fixedly seated; a fixing projection on which the fixing washer can be fixedly seated; a tapered surface having an inner diameter that gradually widens so that the circular spring can expand as it moves in the direction in which the first pipe is inserted; a supporting projection on which the spring supporter, which supports the circular spring by pressing it in one direction, is seated; and a fixing groove in which the stopper can be inserted and fixed.

In a preferred embodiment, the fixed washer and the support washer can move a predetermined distance between the fixing jaw and the closing cap.

In a preferred embodiment, the ends of the two openings of the body are bent inwardly at a predetermined angle, and the closing cap is fixed to the body by being placed between the fixing jaw and the bent surface of the opening.

In a preferred embodiment, a guide member is further provided, which is arranged between the pipe fixing member and the packing member inside the hollow body, to guide the movement path of the first and second pipes to be inserted.

The present invention has the following excellent effects.

First, according to a vacuum-sealed pipe coupler according to one embodiment of the present invention, when a pipe is inserted, the packing member is pressurized, and as the packing member and the support packing are in close contact, the packing member expands toward the pipe, so that the space between the pipe tip and the packing member can be strongly sealed by a larger area of the packing member, thereby achieving a primary seal. Therefore, when a vacuum is applied, the internal space of the connected pipe can be secured to the maximum extent, and when the fluid is injected, the fluid can be prevented from leaking between the pipe and the body.

In addition, according to a vacuum-sealed pipe coupler according to one embodiment of the present invention, a packing ring and a guide packing are provided between a pipe inserted into a body and the body, so that even when external pressure is applied in various directions according to vacuum or fluid pressure, the packing ring and the guide packing are tightly contracted to each other, thereby sealing the space between the body and the pipe a second time, thereby having the advantage of preventing the fluid from leaking between the pipe and the body when the fluid is injected.

In addition, according to a vacuum-sealed pipe coupler according to one embodiment of the present invention, the side of a pipe inserted inward is first fixed by pressurizing due to the elastic restoring force of a circular spring provided inside the coupler, and the pipe inserted inward is secondarily fixed by an inner protrusion formed by protruding on the inner surface of a ring-shaped fixing washer provided inside the coupler, so that adjacent pipes can be firmly connected.

In addition, according to a vacuum-sealed pipe coupler according to one embodiment of the present invention, since a support washer is arranged on one side of a fixed washer to support it, when the pipe is separated from the body, there is an advantage in that the inner protrusion of the fixed washer that was fixing the pipe can be prevented from being broken by being bent in the opposite direction due to a force applied by the pipe in the direction in which the pipe is separated.

FIG. 1 is a drawing for explaining how pipes are connected by a vacuum-sealed pipe coupler according to embodiments of the present invention.
FIG. 2 is an exploded view showing the configuration of a vacuum-sealed pipe coupler according to one embodiment of the present invention;
FIG. 3 is a cross-sectional view showing in detail the components arranged inside a vacuum-sealed pipe coupler according to one embodiment of the present invention;
Figure 4 is a cross-sectional view showing the shape of the inner surface of the body of a vacuum-sealed pipe coupler according to one embodiment of the present invention.
FIG. 5 is a cross-sectional view for explaining the direction of pressure applied to a packing portion when a pipe is inserted into a vacuum-sealed pipe coupler according to one embodiment of the present invention.
FIG. 6 is a cross-sectional view for explaining the direction of pressure applied to the inside of a pipe inserted into a vacuum-sealed pipe coupler and the direction of vacuum exhaust according to one embodiment of the present invention.
FIG. 7 is a cross-sectional view for explaining the direction of pressure applied when injecting fluid into a pipe inserted into a vacuum-sealed pipe coupler according to another embodiment of the present invention.

The terms used in the present invention are selected from commonly used terms as much as possible, but in certain cases, there are terms arbitrarily selected by the applicant. In such cases, the meaning should be understood by considering the meaning described or used in the detailed description of the invention, rather than the simple name of the term.

Hereinafter, the technical configuration of the present invention will be described in detail with reference to preferred embodiments illustrated in the attached drawings.

However, the present invention is not limited to the embodiments described herein and may be embodied in other forms, and like reference numerals represent like elements throughout the specification.

FIG. 1 is a drawing for explaining how pipes are connected by a vacuum-tight pipe coupler according to embodiments of the present invention, FIG. 2 is an exploded view showing the configuration of a vacuum-tight pipe coupler according to one embodiment of the present invention, and FIG. 3 is a cross-sectional view showing in detail the components arranged inside a vacuum-tight pipe coupler according to one embodiment of the present invention.

Referring to FIGS. 1 to 3, the vacuum-sealed pipe coupler (100) of the present invention is a means for connecting pipes (P) arranged adjacent to each other, which is a means for moving a fluid having a certain pressure when changing or extending a pipeline depending on the installation location during piping work.

In addition, the vacuum-sealed pipe coupler (100) of the present invention is a pipe coupler that can prevent the injected fluid from leaking by secondarily sealing the gap between connected pipes (P).

In addition, the vacuum-sealed pipe coupler (100) of the present invention comprises a body (110), a spur (120), a packing part (130), and a pipe fixing part (140).

The above body (110) is formed with a hollow space (hereinafter referred to as “body hollow space”) in the longitudinal direction so that one side opening and the other side opening penetrate each other so that the pipes (P) can be inserted.

At this time, the pipes (P) include a first pipe (P ₁ ) inserted into one side opening of the body (110) and a second pipe (P ₂ ) inserted into the other side opening of the body (110).

Additionally, the openings on both sides of the body (110) are formed by bending at a predetermined angle so that the ends face inward.

Meanwhile, in the present invention, the body (110) is illustrated as a straight shape into which the pipes (P) can be inserted through openings on both sides, but it can be manufactured in various shapes such as a 'T' shape or a cross shape depending on the purpose and installation location.

FIG. 4 is a cross-sectional view showing the inner surface shape of a body of a vacuum-sealed pipe coupler according to one embodiment of the present invention. Referring to FIG. 4, the inner surface of the body (110) is formed in a shape in which the components of the pipe connection coupler (100) can be placed and secured within the body hollow portion (A).

In addition, the inner surface of the body (110) is formed with a fixing protrusion (111), a settling protrusion (112), a tapered surface (113), a support protrusion (114), and a fixing groove (115) sequentially from the openings on both sides toward the center in the longitudinal direction.

The above fixed jaw (111) is formed on the other side of the above bent opening, and the closing cap (150) described below is secured therein to fix the closing cap (150) inside the body hollow portion (A).

The above-mentioned fixing jaw (112) is formed on the other side of the above-mentioned fixed jaw (111), and the fixing washer (143) of the above-mentioned pipe fixing part (140) to be described below is fixed thereon, thereby placing the above-mentioned fixing washer (143) inside the above-mentioned body hollow portion (A).

The above tapered surface (113) is formed on the other side of the above-described anchoring protrusion (112), and the circular spring (141) of the pipe fixing member (140) described below is placed therein, and provides a space in which the placed circular spring (141) can move while expanding, while also guiding the movement path.

In addition, the tapered surface (113) is formed in a tapered shape so that the inner diameter of the body (110) becomes wider from one side to the other so that the first pipe (P ₁ ) can move in the direction in which it is inserted as the circular spring (141) expands.

The above support jaw (114) is formed on the other side of the tapered surface (113), and the spring support (142) of the pipe fixing part (140) to be described below is secured thereto, thereby placing the spring support (142) inside the body hollow portion (A).

The above-mentioned fixed groove (115) is a groove formed in the center of the length direction inside the body hollow (A), and the stopper (120) is inserted and fixed inside the body hollow (A).

The above stopper (120) is inserted into the fixing groove (115) and fixed to the body (110) and is formed in a ring shape with a hole formed through which the fluid flowing in through the pipes (P) inserted into the body (110) can move as a means for guiding the depth at which the pipes (P) are inserted into the body (110).

FIG. 5 is a cross-sectional view for explaining the direction of pressure applied to a packing portion when a pipe is inserted into a vacuum-tight pipe coupler according to one embodiment of the present invention, FIG. 6 is a cross-sectional view for explaining the direction of pressure applied when vacuum is applied to the inside of a pipe inserted into a vacuum-tight pipe coupler according to one embodiment of the present invention and the direction of vacuum exhaust, and FIG. 7 is a cross-sectional view for explaining the direction of pressure applied when fluid is injected into the inside of a pipe inserted into a vacuum-tight pipe coupler according to another embodiment of the present invention.

Referring to FIGS. 5 to 7, the packing part (130) is a sealing means that prevents leakage of fluid flowing into the first pipe (P ₁ ) between the body (110) and the first pipe (P ₁ ) inserted into the body hollow (A), and is composed of a packing member (131), a support packing (132), a support ring (133), a packing ring (134), a guide packing (135), and a fixing member (136).

The above packing member (131) is a means for sealing by contacting the tip end (f) of the first pipe (P ₁ ) inserted into the body (110), and is arranged so that one side of the body cavity (A) faces the stopper (120) and the other side faces one opening of the body (110).

In addition, the packing member (131) has a mounting groove formed with a predetermined length on the inner surface facing the stopper (120).

Here, the above-mentioned fixing groove is formed to a depth at which the support ring (133) described below can be inserted and fixed.

The above-mentioned support packing (132) is a means for supporting the pressurized packing member (131) to move a predetermined distance toward the stopper (120) when the first pipe (P ₁ ) is inserted, and is placed between the body (110) and the packing member (131).

Meanwhile, the contact surface where the packing member (131) and the support packing (132) come into contact with each other is formed as a tapered surface whose diameter becomes narrower as it goes from the end of one side of the opening of the body (110) toward the stopper (120).

Accordingly, when the tip of the first pipe (P ₁ ) presses the packing member (131) toward the stopper (120), the packing member (131) is pushed down toward the stopper (120) along the tapered contact surface, and the support packing (132) is pushed up in the opposite direction to the direction toward the stopper (120) along the tapered contact surface, thereby expanding the inner diameter of the packing member (131), thereby sealing the space between the tip of the first pipe (P ₁ ) and the packing member (131).

That is, as the inner diameter of the packing member (131) expands, the space between the tip of the first pipe (P ₁ ) and the packing member (131) is tightly sealed, thereby improving the airtightness so that the fluid flowing into the first pipe (P ₁ ) does not leak.

The above support ring (133) is a means for fixing the packing member (131) and the support packing (132) and preventing the packing member (131) from being excessively expanded or displaced toward the inner diameter center (C) of the body (110) by being pressurized.

In addition, the support ring (133) is formed in a ring shape, and has a folded portion formed on the inner surface thereof, which is bent toward one side opening of the body (110).

Accordingly, the bent portion of the support ring (133) is inserted and seated in the seating groove formed in the packing member (131), and the area of the packing member (131) where the bent portion of the support ring (133) is seated is prevented by the bent portion from expanding toward the inner diameter center (C) of the body (110), and the other area expands and comes into close contact with the tip of the first pipe (P ₁ ), thereby primarily sealing the space between the body (110) and the first pipe (P ₁ ).

The above packing rings (134) are provided as a pair to seal the space between the inner surface of the body (110) and the outer surface of the first pipe (P ₁ ), and are sequentially arranged in a direction from the packing member (131) toward one side opening of the body (110) inside the body hollow section (A).

In addition, the packing ring (134) is formed in a ring shape and is made of an elastic material, so that when the first pipe (P ₁ ) is inserted into the body (110), the elastic force, which is a reaction of the force compressed between the body (110) and the first pipe (P ₁ ), can pressurize the first pipe (P ₁ ) to add a predetermined degree of fixing force, which has the advantage of being able to add a predetermined degree of fixing force.

Meanwhile, in the present invention, a pair of packing rings (134) are distinguished, with the packing ring placed on the stopper side being a first packing ring (134-1), and the packing ring placed on one side of the opening of the body (110) being a second packing ring (134-2).

The above guide packing (135) is a means for supporting the movement of the pair of packing rings (134) while they contract or expand when a vacuum is applied or a fluid is injected into the first pipe (P ₁ ) inserted into the body (110) and placed between the pair of packing rings (134).

In addition, the guide packing (135) is formed as a tapered surface with a diameter that becomes narrower from both ends in the longitudinal direction toward the center on the inner surface that comes into contact with the first pipe (P ₁ ), so that when the pair of packing rings (134) are subjected to external pressure, they are guided to move along the tapered surface.

In addition, the guide packing (135) is made of an elastic material, and when a vacuum is applied or a fluid is injected into the first pipe (P ₁ ) inserted into the body (110), it seals the space between the body (110) and the first pipe (P ₁ ) by coming into close contact with the pair of packing rings (134).

The above-described fixed member (136) is arranged between the first packing ring (134) and the packing member (131) so that when a vacuum is applied to the first pipe (P ₁ ) inserted into the interior of the body (110), when the first packing ring (134) moves toward the stopper (120) and shrinks, it prevents the first packing ring (134) from shrinking below the inner diameter size of the first pipe (P ₁ ).

In addition, the fixed member (136) has an inner surface having a diameter of the same size along the longitudinal direction and an outer surface formed as a tapered surface whose outer diameter increases from one end to the center, thereby guiding the first packing ring (134) to move along the tapered surface toward the stopper (120) while shrinking due to external pressure, thereby preventing the first packing ring (134) from shrinking toward the inner diameter center (C) of the body (110), thereby maintaining the inner diameter of the first packing ring (134) constant.

Accordingly, when a vacuum or fluid pressure is applied to the first pipe (P ₁ ) inserted into the body (110), the pair of packing rings (134), the guide packing (135) and the fixing member (136) are pressed in one direction to seal the space between the body (110) and the first pipe (P ₁ ) for the second time.

The above pipe fixing member (140) is a means for fixing the first pipe (P ₁ ) inserted into the body (110) to the body (110), and is composed of a circular spring (141), a spring supporter (142), a fixing washer (143), and a support washer (144).

In detail, the pipe fixing member (140) primarily fixes the first pipe (P _{1 ) inserted into the body (110) by the circular spring (141) and the spring support (142), and secondarily fixes it by the fixing washer (143) and the support washer (144), thereby preventing the inserted first pipe (P 1 )} from being detached from the body (110) due to external factors.

The above circular spring (141) is formed in a ring shape with an inner diameter smaller than the diameter of the first pipe (P ₁ ) so that it expands outward when the first pipe (P ₁ ) is inserted inward. Specifically, the circular spring (141) expands while moving along the tapered surface (113) when the first pipe (P ₁ ) is inserted inward.

At this time, the outer surface of the inserted first pipe (P ₁ ) is compressed and fixed to the body ( ₁₁₀ ) by the elastic restoring force of the circular spring (141).

The above spring support (142) is placed on the other side of the circular spring (141) inside the body hollow (A) and is secured to the stopper (120), and supports the tension by pressing the circular spring (141) moving in the direction in which the first pipe (P ₁ ) is inserted toward the one-side opening.

In addition, the spring support (142) is in a ring shape, and on the outer surface, a plurality of outer protrusions (142-1) are formed to protrude outwardly at a predetermined distance, and the ends of the outer protrusions (142-1) are bent at a predetermined angle in the other diagonal direction.

At this time, when the end of the outer projection (142-1) is settled on the support jaw (114), and the spring support (142) receives force from the circular spring (141) in the other direction, the support jaw (114) receives a force of action and reaction to press the circular spring (141) toward the one-sided opening to support the tension.

The above fixed washer (143) is placed on one side of the circular spring (141) inside the body hollow (A), and the outer surface of the fixed washer (143) is seated on the fixing protrusion (112).

In addition, the fixed washer (143) is in a ring shape, and a plurality of inner projections (143-1) are formed to protrude inwardly on the inner surface at a predetermined distance, and the ends of the inner projections (143-1) are bent at a predetermined angle so as to face the stopper (120).

Accordingly, when the first pipe (P ₁ ) is inserted into the inside of the fixed washer (143), the insertion of the first pipe (P ₁ ) is easy, and the fixing force that fixes the inserted first pipe (P ₁ ) to the body (110) by pressing the outer surface of the first pipe (P ₁ ) against the inner projection (143-1) is also strong.

The above support washer (144) is arranged to cover one side of the above fixing washer (143).

In addition, the support washer (144) is formed in a ring shape with the inner surface bent at a predetermined angle, and the inner diameter of the support washer (144) is formed larger than the inner diameter of the fixed washer (143) so that the inner diameter is the same as the outer diameter of the first pipe (P ₁ ).

Accordingly, the support washer (144) supports the inner projection (143-1) of the fixed washer (143) in contact with the first pipe (P ₁ ) so as to prevent it from being bent by yielding due to force in one direction when the first pipe (P ₁ ) is separated from the body (110).

Meanwhile, the pipe connection coupler (100) of the present invention is further provided with a finishing cap (150) that is placed between a bent surface in one opening of the body (110) and the fixing jaw.

The above closing cap (150) supports the fixed washer (143) and the support washer (144) that move by the first pipe (P _{1) when the first pipe (P 1 )} is inserted.

In addition, the closing cap (150) has a cylindrical shape, but has a lower portion that is bent outward, and the bent portion of the lower portion is secured between the bent portion of the body (110) and the fixing jaw (111) to be fixed to the body (110).

Meanwhile, the fixing projection (111) and the settling projection (112) are formed on the inner surface of the body (110) so that a predetermined distance (a) is formed between the closing cap (150) and the support washer (144) placed inside the body hollow (A).

At this time, the distance (a) is such that when the first pipe (P ₁ ) contacts the inner projection (143-1) of the fixed washer (143) and the inner surface of the support washer (144) and presses in the other direction, the outer surface of the fixed washer (143) and the support washer (144) can move in one direction, and this can prevent the fixed washer (143) and the support washer (144) from being deformed due to the force applied to the fixed washer (143) and the support washer (144) when the first pipe (P ₁ ) is inserted.

Meanwhile, the pipe connection coupler (100) of the present invention may further include a guide member (160) that guides the path along which the first pipe (P ₁ ) is inserted into the body (110) between the packing member (130) and the pipe fixing member (140).

The above guide member (160) is formed in a cylindrical shape so that the inner diameter is formed to be the same as the outer diameter of the first pipe (P ₁ ), and can prevent the first pipe (P ₁ ) from being inserted as designed due to external factors such as vibration within the body hollow portion (A) when inserted.

Meanwhile, in the present invention, the configuration for fixing the first pipe (P ₁ ) inserted into one side opening of the body (110) to the body (110) has been described in detail, but in the pipe connection coupler (100) of the present invention, the first pipe (P ₁ ) and the second pipe (P ₂ ) are inserted into one side and the other side openings, respectively, and the configurations of the pipe connection coupler (100) except for the body (110) and the stopper (120) for fixing the second pipe (P ₂ ) between the stopper (120) and the other side opening are arranged in the same manner.

At this time, the configurations of the pipe connection coupler (100) excluding the body (110) and the stopper (120) are arranged symmetrically with respect to the stopper (120) inside the body hollow section (A), so as to secure the first pipe (P ₁ ) inserted into one opening of the body (110) and secure the second pipe (P ₂ ) inserted into the other opening of the body (110) to the body (110) in the same manner.

Therefore, the pipe connection coupler (100) of the present invention pressurizes the packing member (131) when the pipe (P) is inserted into the body (110) so that the packing member (131) and the support packing (132) are in close contact with each other, thereby causing the packing member (131) to expand toward the pipe (P), thereby primarily sealing the space between the tip end (f) of the pipe (P) and the packing member (131) by strongly contacting them over a larger area, and secondarily sealing the space between the body (110) and the pipe (120) by contacting each other while moving in one direction when the pair of packing rings (134), the guide packing (135) and the fixing member (136) are subject to external pressure, thereby allowing the space inside the pipe (P) to be secured to the maximum when a vacuum is applied to the inside of the pipe (P), and when a fluid is injected, the fluid is injected into the pipe (P) and the It has the advantage of being able to prevent leakage between the bodies (110).

As described above, the present invention has been illustrated and described with reference to preferred embodiments, but is not limited to the above-described embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the present invention.

100 : Vacuum sealed pipe coupler 110 : Body
111: Fixed jaw 112: Fixed jaw
113: Tapered surface 114: Support jaw
115 : Fixed home 120 : Stopper
130: Packing section 131: Packing member
132: Support packing 133: Support ring
134: A pair of packing rings 135: Guide packing
136: Fixed member 140: Pipe fixed member
141: Circular spring 142: Spring support
142-1: Outer projection 143: Fixed washer
143-1: Inner protrusion 144: Support washer
150 : Magap cap 160 : Guide member
A: Hollow body P: Pipe
C: Center of body inner diameter f: Tip

Claims (11)

In a pipe coupler that connects pipes through which a fluid having a certain pressure moves,
A body in the shape of a cylinder in which a hollow space (hereinafter referred to as “hollow body”) is formed so that one side opening and the other side opening penetrate each other, wherein a first pipe among the pipes can be inserted into the one side opening and a second pipe can be inserted into the other side opening;
A stopper having a ring shape and an outer surface thereof which is fixed by contacting the inner surface thereof at the center of the longitudinal direction of the hollow body;
A packing part arranged so that one side faces the stopper and the other side faces the one-side opening inside the hollow body, and the front end of the first pipe comes into contact with it to block the fluid flowing into the first pipe from flowing out into the space between the first pipe and the inner surface of the body; and
A pipe fixing member is arranged so that one side of the hollow body faces the packing part and the other side faces the one-side opening, and wraps and fixes the outer surface of the first pipe so that the first pipe being inserted does not come off from the body;
The above packing part:
A packing member that allows the tip of the first pipe inserted into the above body to come into contact and be sealed;
A supporting packing disposed between the packing member and the body to support the packing member, which receives pressure from the first pipe, from moving a predetermined distance toward the stopper;
A support ring is formed in a ring shape, and is mounted on the stopper, and has a bent portion with an inner surface bent toward the one-sided opening, and the packing member and the support packing are mounted thereon, and supports the packing member and the support packing so as to prevent them from being excessively expanded or detached toward the inner diameter center of the body due to external pressure;
A vacuum-sealed pipe coupler, characterized in that the internal components of the above body are provided in a symmetrical shape with respect to the stopper.
In paragraph 1,
The above packing part:
A pair of packing rings, which are O-rings that are sequentially arranged in a direction from the packing member toward one side opening inside the hollow body, and seal the space between the outer surface of the first pipe inserted into the body and the inner surface of the body;
A guide packing arranged between the pair of packing rings and having an inner surface in contact with the first pipe formed as a tapered surface whose diameter becomes narrower from both ends in the longitudinal direction to the center, and which guides the pair of packing rings to move a predetermined distance along the tapered surface when contracted or expanded by external pressure; and
It further includes a fixed member arranged between the packing rings and the packing member, the inner surface having a diameter of the same size in the longitudinal direction and the outer surface having a tapered surface formed with an outer diameter that increases from one end to the center;
A vacuum-tight pipe coupler characterized in that when the first packing ring, among the pair of packing rings, arranged on the stopper side, moves due to external pressure, it is pushed in between the fixing member and the inner surface of the body along the tapered surface of the fixing member, thereby preventing the diameter of the first packing ring from shrinking below a certain size.
In paragraph 1,
A vacuum-tight pipe coupler characterized in that each contact surface where the packing member and the supporting packing come into contact with each other is formed as a tapered surface whose diameter becomes narrower in the direction toward the stopper, so that when the front end of the first pipe presses the packing member toward the stopper, the packing member is pushed down toward the stopper along the tapered surface of the contact surface and the supporting packing is pushed up in the opposite direction of the stopper along the tapered surface of the contact surface, thereby expanding the inner diameter of the packing member, thereby sealing the space between the front end of the first pipe and the packing member.
In paragraph 1,
The inner surface of the packing member facing the stopper has a settling groove of a predetermined length formed thereon.
A vacuum-sealed pipe coupler characterized in that the bending portion of the support ring is secured in the securing groove of the packing member to prevent the packing member from being separated from the support ring, while the inner surface of the packing member that is not supported by the support ring is allowed to expand to a predetermined size or more.
In paragraph 1,
The above pipe fixing part:
A circular spring that expands when the first pipe is inserted inward and contracts and presses the side of the inserted first pipe by elastic restoring force to secure it to the body; and
A vacuum-tight pipe coupler characterized by including a spring support member disposed between the circular spring and the packing member and supporting the circular spring, which expands when the first pipe is inserted, toward the one-side opening.
In paragraph 5,
The above pipe fixing part:
A fixed washer arranged on one side of the above circular spring, formed in a ring shape, having a plurality of inner protrusions protruding on the inner surface, and having an end of the inner protrusions bent at a predetermined angle in the direction in which the first pipe is inserted, such that when the first pipe is inserted inward, the inner protrusions press the outer surface of the first pipe to fix it to the body; and
A vacuum-tight pipe coupler characterized by further including a support washer which is arranged on one side of the fixed washer, is formed in a ring shape, has an inner circumference bent at an angle corresponding to the inner protrusions of the fixed washer, has an inner diameter larger than the inner diameter of the fixed washer, and supports the first pipe so as to prevent the inner protrusions from yielding and bending in the direction in which the first pipe is pulled out when the first pipe is separated from the body.
In paragraph 6,
A vacuum-sealed pipe coupler characterized in that it further comprises a closing cap formed in a ring shape and having an inner circumference bent toward the opening on the one side, and is arranged on one side of the support washer.
In paragraph 7,
On the inner surface of the above body, sequentially from each opening toward the center in the longitudinal direction,
A fixed jaw on which the above-mentioned closing cap can be fixedly fixed;
A fixing jaw on which the above fixed washer can be fixed;
A tapered surface so that the inner diameter of the body gradually widens so that the above circular spring can expand as it moves in the direction in which the first pipe is inserted;
A support jaw on which the spring support, which supports the circular spring by applying pressure in one direction, is installed; and
A vacuum-tight pipe coupler characterized in that a fixing groove into which the stopper can be inserted and fixed is formed.
In Article 8,
A vacuum-tight pipe coupler, characterized in that the fixed washer and the support washer can move a predetermined distance between the fixing jaw and the closing cap.
In Article 9,
The ends of the two openings of the above body are bent inward at a predetermined angle,
A vacuum-tight pipe coupler characterized in that the above-mentioned closing cap is fixed to the body by being placed between the above-mentioned fixed jaw and the bent surface of the above-mentioned opening.
In Article 10,
A vacuum-sealed pipe coupler characterized in that it further comprises a guide member arranged between the pipe fixing part and the packing part inside the hollow body to guide the movement path of the first and second pipes being inserted.

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