KR20220037159A - Pipe coupler with double packing member - Google Patents

Abstract

The present invention relates to a pipe coupler having a double packing member, capable of connecting a pipe while maintaining watertightness or airtightness reliably. The pipe coupler of the present invention comprises: a coupler body communicating with a pipe; a grip ring for fixing the pipe; a first packing member made of a material having certain elasticity; a second packing member made of a material having certain elasticity; and an elastic pressing means.

Description

Pipe coupler with double packing member {PIPE COUPLER WITH DOUBLE PACKING MEMBER}

The present invention relates to a pipe coupler provided with a double packing member, and more particularly, more reliably watertight or It relates to a pipe coupler provided with a double packing member that can connect pipes while maintaining airtightness.

Plumbing work collectively refers to the work of cutting and connecting a plurality of pipes manufactured to a certain length according to the installation environment to form a conduit. For this reason, a pipe coupler is being used.

Conventionally used as such a pipe coupler has the same inner diameter as the pipe to be connected, but has a larger outer diameter than the pipe to be connected, so that the pipe is screwed into it.

However, such a conventional pipe coupler has a problem in that workability is not easy because it must be inserted while rotating the pipe.

In order to solve the disadvantages of the conventional conventional pipe coupler as described above, Utility Model Registration No. 0381922 (registration date: April 7, 2005) has proposed a pipe connecting device having a packing member.

1 shows a pipe coupler according to the prior art published in the registered utility model No. 0381922.

1, the pipe coupler according to the prior art is installed at the inner end of the connection part in a hollow body 10 ′ in which a plurality of openings connected to which a pipe to be connected is formed, and is connected to the body 10 ' A packing member 20' for securing the airtightness of the pipe, a support ring 30' interpolated into the connection part to be in close contact with the packing member 20' and having an inclined surface on the upper portion of which the inner surface is reduced downward, and the support A fixture 40' having a plurality of fixing pieces mounted on the inclined surface of the ring 30' and being closely adhered to the connecting part by pressing and fixing the outer diameter of the pipe to be connected, and a screw groove formed therein. It is characterized in that the locking nut (50') screwed to the end of the connection part and fixed in close contact with the fixture (40') is configured to be sequentially installed.

However, in the case of the pipe coupler according to the prior art, an O-ring is shown as an example of the packing member 20'. However, with only the O-ring as described above, there is a limit to maintaining watertightness or airtightness due to the limitation of volume change due to elasticity. there was.

The present invention has been devised to solve the problems of the prior art as described above, and an object of the present invention is to provide a pipe coupler provided with a double packing member that can connect pipes while maintaining watertight or airtightness more reliably there is.

In order to achieve the above object, the pipe coupler having a double packing member according to the present invention is a pipe coupler for connecting a pipe through which a fluid having a certain pressure is moved while maintaining watertight or airtightness, and a hollow is formed along the longitudinal direction. and a coupler body in which the pipe is inserted into the front of the hollow and communicates with the pipe; a grip ring fixed to the hollow of the coupler body and allowing the pipe to be inserted therein, but for fixing the pipe so that the inserted pipe is not separated; It is made of a material having a certain elasticity and the rear end is supported in the hollow of the coupler body, a fluid passage hole through which a fluid can pass is formed in the center, and when the pipe is inserted into the coupler body, the front end of the pipe and a first packing member having a pipe contact surface formed at the front end so that watertight or airtightness is maintained therebetween; a second packing member made of a material having a certain elasticity and inserted into the hollow of the coupler body from the front of the first packing member, the second packing member having a pipe sealing hole through which the outer circumferential surface of the pipe is in contact with the center; an elastic pressing means for elastically pressing the second packing member in a direction in which the second packing member is compressed so that a gap between the inner circumferential surface of the coupler body and the outer circumferential surface of the pipe is sealed by the second packing member; characterized by including.

In addition, in the pipe coupler provided with a double packing member according to the present invention, a first stopper central hole through which a fluid can pass is formed in the center, and fixed to the hollow of the coupler body at the rear of the first packing member 1 A first stopper member for restricting the rear movement of the packing member; A second stopper central hole through which the fluid can pass is formed in the center, and the second stopper member is fixed in the hollow of the coupler body in front of the second packing member to limit the forward movement of the second packing member. cast; Further comprising, the tansang pressing means is characterized in that it is configured to include a pressing spring for elastically pressing the second packing member forward.

Here, the first packing member is characterized in that the front end protrudes forward from the outer side of the pipe contact surface, and is characterized in that a sliding sill that can be caught on the outer peripheral surface of the front end of the pipe is formed.

Here, the second packing member is made of a combination of a front packing unit and a rear packing unit which are stacked before and after contacting each other, when the front packing unit and the rear packing unit are pressed together by the elastic pressing means. It is characterized in that an inclined tapered surface is formed in a contact portion of at least one of the front packing unit and the rear packing unit so that one is expanded and the other is axial.

Here, the inclined tapered surface is formed in the contact portion of the front packing unit, a pipe coupler provided with a double packing member, characterized in that inclined in the direction in which the front packing unit is expanded.

Here, the elastic pressing means is interposed between the first packing member and the second packing member, the pipe is inserted into the center at the center, a guide hole through which the forward and backward movement of the pipe can be guided is formed, and after the outer surface It characterized in that it further comprises a pressure guide having a spring insertion groove formed at the end of which the pressure spring can be inserted and supported.

The pipe coupler provided with the double packing member according to the present invention by the above configuration is more reliably watertight or airtight by the combination of the two first and second packing members and the elastic pressing means for pressing the second packing member. It has the advantage of being able to connect pipes while maintaining

In addition, the pipe coupler provided with the double packing member according to the present invention is watertight or airtight because the first packing member is not pushed to the inside even if a vacuum pressure is formed inside the pipe because the first packing member is provided with a sliding sill and an elastic inclined surface. It has the advantage of being able to keep

1 is an exploded perspective view of a pipe coupler according to the prior art;
2 is an exploded perspective view of a pipe coupler provided with a double packing member according to an embodiment of the present invention;
3 is an exploded cross-sectional view of a pipe coupler having a double packing member according to an embodiment of the present invention;
4 is a cross-sectional view illustrating a state in which a pipe is inserted into a pipe coupler provided with a double packing member according to an embodiment of the present invention;
5 is a cross-sectional view showing an operating state of the first packing member according to an embodiment of the present invention;
6 is a cross-sectional view showing the operating state of the elastic pressing means and the second packing member according to an embodiment of the present invention;

Hereinafter, a pipe coupler having a double packing member according to the present invention will be described in more detail with reference to the embodiments shown in the drawings.

2 is an exploded perspective view of a pipe coupler provided with a double packing member according to an embodiment of the present invention, and FIG. 3 is an exploded cross-sectional view of a pipe coupler provided with a double packing member according to an embodiment of the present invention, FIG. 4 is a cross-sectional view illustrating a state in which a pipe is inserted into a pipe coupler provided with a double packing member according to an embodiment of the present invention, and FIG. 5 is a view showing an operating state of the first packing member according to an embodiment of the present invention 6 is a cross-sectional view showing the operating state of the elastic pressing means and the second packing member according to an embodiment of the present invention.

2 to 6, the pipe coupler provided with a double packing member according to an embodiment of the present invention is a coupler as a pipe coupler for connecting a pipe (P) through which a fluid having a predetermined pressure is moved while maintaining watertight or airtightness. The main body 10, the grip ring 20, the first packing member 30, the second packing member 40, the elastic pressing means 50, the first stopper member 60, the second It includes a stopper member 70 and a closing cap 80 .

The coupler body 10 has a hollow 11 formed along the longitudinal direction at a position for inserting a pipe P for connection, and the pipe P is inserted into the front of the hollow 11, and the pipe It is a configuration that is in communication with (P).

In one embodiment of the present invention, the coupler body 10 is a straight line, and the pipe P is inserted in the direction of both ends of the hollow 11. However, it is manufactured in various shapes such as a T-shape, a cross shape, etc. can be

A first stopper fixing groove 12 for fixing the first stopper member 60 is formed in the center portion of the coupler body 10, and the second stopper member 70 is hooked and supported at the upper end of the second stopper member. The stopper engaging projection 13 and the closing cap stopping projection 14 having a shape that can be supported by the end of the closing cap 80 is formed.

On the other hand, the upper end of the coupler body 10 is bent inwardly in a state where all other components of the present invention are built into the hollow 11 of the coupler body 10, and the closing cap is formed by forming a bent fixing part 15 It is configured to be able to fix the closing cap 80 between the locking jaw 14 and the bent fixing part 15 .

The grip ring 20 is fixed to the hollow 11 of the coupler body 10, and the pipe P can be inserted into the inside, but the pipe P is held so that the inserted pipe P is not separated. In one embodiment of the present invention as a fixing configuration, for more reliable fixing of the pipe (P), the first and second grip rings (20a, 20b) are used to overlap each other with the spaced O-ring (20c) interposed therebetween. exemplified.

In an embodiment of the present invention, the grip ring 20 is fixed to the hollow 11 of the coupler body 10 at a position between the barnacle cap 80 and the second stopper member 70, and the pipe A ring-shaped ring portion through which (P) passes, and a plurality of radial pieces arranged to be inclined in a direction in which the inner diameter becomes smaller toward the rear of the ring portion so that the insertion of the pipe (P) is possible, but separation to the front is prevented. provided

4 shows a state in which the pipe P is inserted into the coupler body 10. A plurality of radial pieces arranged to be inclined in a direction in which the inner diameter decreases toward the rear of the ring portion of the grip ring 20 is shown. Due to the configuration, when the pipe (P) is inserted, the radiation piece is bent backwards so that the insertion is smooth, but the forward departure is prevented, so that the pipe (P) can be fastened and fixed to the coupler body 10 with one touch. .

The first packing member 30 is made of a material having a certain elasticity in a configuration to maintain watertight or airtightness between the front end of the pipe P and the rear end in the hollow 11 of the coupler body 10 . Ancillary is supported.

In an embodiment of the present invention, the first packing member 30 has a fluid passage hole 31 , a pipe contact surface 32 , a sliding sill 33 , an elastic concave groove 34 , and an elastic inclined surface 35 . this is formed

The fluid passage hole 31 is formed through front and rear so that the fluid can pass through the center of the first packing member 30 .

The pipe contact surface 32 is formed at the front end of the first packing member 30 so that the front end of the pipe P can be in contact when the pipe P is inserted into the coupler body 10. As shown in FIG. 5, the tip of the pipe (P) is in contact with the pipe contacting surface (32), and the first packing member (30) is compressed to a certain extent by elasticity, and watertight or airtight is maintained therebetween. will become

The slipping bump 33 is at the front end of the first packing member 30 so that the front end of the pipe (P) can be caught on the outer circumferential surface of the front end of the pipe (P) in a state in which the front end is in contact with the pipe contact surface (32). It is configured to protrude forward from the outside of the pipe contact surface 32 .

That is, when a vacuum pressure is formed inside the pipe (P), if there is no anti-slip projection 33, the first packing member 30 is pushed inward by the vacuum pressure, and the diameter of the fluid passage hole 31 There is a fear that the flow of the fluid becomes narrower due to the narrowing, but the diameter of the fluid passage hole 31 can be maintained because the first packing member 30 is not pushed inward due to the configuration of the sliding sill 33 . .

The elastic concave groove 34 has a configuration that is dug at a predetermined depth in the center of the rear surface in contact with the first stopper member 60 of the first packing member 30, and the rear end of the first packing member 30 and the first stopper Not only can the sealing between the members 60 be more reliable, but the elastic compression of the first packing member 30 by the external force inserted into the pipe P becomes easier.

The elastic inclined surface 35 is configured to be inclined in the rear outward direction on the inner surface of the first packing member 30, and by the configuration of the elastic inclined surface 35, the pipe P is inserted by an external force. As well as making the elastic compression of the first packing member 30 easier, similarly to the role of the anti-skid protrusion 33, even when a vacuum pressure is formed inside the pipe P, it is formed to be inclined in the rear outward direction on the inner surface. Thus, the diameter of the fluid passage hole 31 is not narrowed.

The second packing member 40 is made of a material having a certain elasticity and is inserted into the hollow 11 of the coupler body 10 from the front of the first packing member 30. An elastic pressing means 50 to be described later ) and is configured to seal the gap between the inner circumferential surface of the coupler body 10 and the outer circumferential surface of the pipe (P).

That is, between the pipe (P) and the coupler body (10) is primarily sealed by the first packing member (30), even if the sealing by the first packing member (30) is not perfect, the It is configured to maintain a sealing force between the pipe (P) and the coupler body (10) by the second packing member (40).

In an embodiment of the present invention, the second packing member 40 is composed of a combination of a front packing unit 40a and a rear packing unit 40b that are stacked before and after the contact portions are in contact with each other, and the pipe sealing hole 41 and , the inclined tapered surface 42 and the adhesion wrinkle 43 are formed.

The pipe sealing hole 41 is configured such that the outer peripheral surface of the pipe P is in contact with the center of each of the front packing unit 40a and the rear packing unit 40b to pass through.

When the front packing unit 40a and the rear packing unit 40b are compressed with each other by an elastic pressing means 50 to be described later, the inclined tapered surface 42 is formed so that one is expanded and the other is axial. The packing unit (40a) and the rear packing unit (40b) is configured to be inclined at the contact portion of at least one.

In an embodiment of the present invention, the inclined tapered surface 42 is formed in the contact portion of the front packing unit 40a as shown in FIG. 6, and the inclination of the inclined tapered surface 42 is the front packing unit ( When the 40a) and the rear packing unit 40b are mutually compressed, the front packing unit 40a is formed to be inclined in a direction in which the tube is expanded.

If the inclination of the inclined tapered surface 42 is formed in the direction in which the front packing unit 40a is axially formed, the front packing unit 40a is in friction with the pipe P when the pipe P is inserted. Since there is a risk of interfering with the insertion of the pipe (P) by being moved backward by the axial pipe, the inclination of the inclined tapered surface 42 is preferably formed to be inclined in the direction in which the front packing unit 40a is expanded.

On the other hand, the rear packing unit (40b) is configured in the form of an O-ring having a circular cross section in an embodiment of the present invention, and a taper corresponding to the inclined tapered surface (42) on the contact surface in contact with the front packing unit (40a) It will be said that it may be configured to form a surface.

The close contact corrugation 43 forms irregularities at regular intervals on the outer circumferential surface of the front packing unit 40a in contact with the inner circumferential surface of the coupler body 10, so that the outer circumferential surface of the front packing unit 40a and the coupler body 10 It is a configuration that enables more reliable sealing between the inner peripheral surfaces of the

The elastic pressing means 50 is configured to elastically press the second packing member 40 in the direction in which the second packing member 40 is compressed, and the second packing member ( 40) is compressed and it is possible to seal the gap between the inner peripheral surface of the coupler body 10 and the outer peripheral surface of the pipe (P).

In an embodiment of the present invention, the elastic pressing means 50 is configured to include a pressing spring 51 and a pressing guide 52 .

The pressure spring 51 is configured to elastically press the second packing member 40 forward with an elastic force.

The pressure guide 52 is interposed between the first packing member 30 and the second packing member 40, the pipe (P) is inserted into the center at the center, and the forward and backward movement of the pipe (P) is A guide hole 521 that can be guided is formed, and a spring insertion groove 522 into which the pressure spring 51 can be inserted and supported is formed at the rear end of the outer surface.

That is, the pressure guide 52 guides the forward and backward movement of the pipe P, and at the same time, the pressure spring 51 is inserted and supported inside the second packing member 40 of the pressure spring 51 . It is a structure that transmits elasticity.

The first stopper member 60 has a first stopper central hole 61 through which the fluid can pass is formed in the center, and the hollow 11 of the coupler body 10 is formed at the rear of the first packing member 30 . ) is fixed to the configuration to limit the movement of the first packing member 30 to the rear.

In an embodiment of the present invention, the first stopper member 60 is press-fitted into one end of the coupler body 10 and is inserted and fixed into a first stopper fixing groove formed in the center of the coupler body 10 .

The second stopper member 70 has a second stopper central hole 71 through which a fluid can pass in the center, and a hollow 11 of the coupler body 10 in front of the second packing member 40 . ) is fixed to the configuration to limit the movement of the second packing member 40 forward.

That is, the second stopper member 70 restricts the forward movement of the second packing member 40 so that the second packing member 40 receives an elastic force forward by the elastic pressing means 50 . In the case of compression, the gap between the inner circumferential surface of the coupler body 10 and the outer circumferential surface of the pipe P can be sealed.

In one embodiment of the present invention, the second stopper member 70 is supported over the second stopper engaging jaw 13 formed on the inner circumferential surface of the coupler body 10, and the closing cap 80 is positioned in front of it. its position will be fixed.

The closing cap 80 is configured to fix the second stopper member 70 in front of the second stopper member 70, and the front end bent fixing part 15 of the coupler body 10 is bent inward. and is fixed to the coupler body (10).

The pipe coupler provided with the double packing member described above and shown in the drawings is only one embodiment for carrying out the present invention, and should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is defined only by the matters described in the claims below, and improved and changed embodiments without departing from the gist of the present invention are obvious to those of ordinary skill in the art to which the present invention belongs. It will be said that it falls within the protection scope of the present invention.

P pipe
10 Coupler body
20 gripping
30 first packing member
40 second packing member
40a front packing unit
40b rear packing unit
50 Elastic pressing means
51 pressure spring
52 pressurized guide
60 first stopper member
70 second stopper member
80 closing cap

Claims (6)

In a pipe coupler for connecting a pipe through which a fluid having a certain pressure is moved while maintaining watertight or airtightness,
a coupler body having a hollow formed along the longitudinal direction, the pipe being inserted into the front of the hollow, and communicating with the pipe;
a grip ring fixed to the hollow of the coupler body and allowing the pipe to be inserted therein, but for fixing the pipe so that the inserted pipe is not separated;
It is made of a material having a certain elasticity and the rear end is supported in the hollow of the coupler body, a fluid passage hole through which a fluid can pass is formed in the center, and when the pipe is inserted into the coupler body, the front end of the pipe and a first packing member having a pipe contact surface formed at the front end so that watertight or airtightness is maintained therebetween;
a second packing member made of a material having a certain elasticity and inserted into the hollow of the coupler body from the front of the first packing member, the second packing member having a pipe sealing hole through which the outer circumferential surface of the pipe is in contact with the center;
an elastic pressing means for elastically pressing the second packing member in a direction in which the second packing member is compressed so that a gap between the inner circumferential surface of the coupler body and the outer circumferential surface of the pipe is sealed by the second packing member; Pipe coupler provided with a double packing member, characterized in that it comprises. According to claim 1,
A first stopper central hole through which the fluid can pass is formed in the center, and the first stopper member is fixed to the hollow of the coupler body at the rear of the first packing member to limit the movement of the first packing member to the rear Wow;
A second stopper central hole through which the fluid can pass is formed in the center, and the second stopper member is fixed in the hollow of the coupler body in front of the second packing member to limit the forward movement of the second packing member. cast; including more,
The tansang pressing means, a pipe coupler with a double packing member, characterized in that it comprises a pressing spring for elastically pressing the second packing member forward. 3. The method of claim 2,
The first packing member is a pipe coupler with a double packing member, characterized in that the front end is protruded forward from the outside of the pipe contact surface and has a push-stop that can be caught on the outer circumferential surface of the front end of the pipe. 3. The method of claim 2,
The second packing member is made of a combination of a front packing unit and a rear packing unit that are stacked before and after contacting each other, when the front packing unit and the rear packing unit are compressed with each other by the elastic pressing means. A pipe coupler with a double packing member, characterized in that an inclined tapered surface is formed in a contact portion of at least one of the front packing unit and the rear packing unit so that the pipe is expanded and the other pipe is axial pipe. 5. The method of claim 4,
The inclined tapered surface is formed in the contact portion of the front packing unit, the pipe coupler provided with a double packing member, characterized in that inclined in the direction in which the front packing unit is expanded. 6. The method according to any one of claims 2 to 5,
The elastic pressing means is interposed between the first packing member and the second packing member, the pipe is inserted in the center, a guide hole through which the forward and backward movement of the pipe can be guided is formed, and the rear end portion of the outer surface A pipe coupler with a double packing member, characterized in that it further comprises a pressure guide formed with a spring insertion groove into which the pressure spring can be inserted and supported.

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