KR20110094866A - A pipe connector - Google Patents

Abstract

PURPOSE: A wedge piece is compulsorily compressed in the surface of the press. Therefore, the separation of small and large-diameter pipes is prevented. CONSTITUTION: A pipe connecter(1) comprises a connection body(10), a packing member(20), a joint nut(60), a fastening ring(50), and a separation preventing member(40). The connection body comprises a fluid passage(11) and a receiving part(12). The receiving part is formed in one end of the fluid passage. The receiving part accepts the end part of a pipe(70). The packing member is placed on a stepped portion(13) formed in one side of the receiving part of the connection body. The joint nut is screwed in the outer circumference of one end of the connection body. When the joint nut is fastened up, it pressurizes the packing member and the fastening ring supports the outer circumference of the pipe. A wedge piece(43) of the separation preventing material flexibly adheres closely to the outer circumference of the pipe. The separation of the pipe is prevented.

Description

A pipe connector

The present invention relates to a pipe connector, and more specifically, by inserting the separation prevention member having a wedge piece on the inner circumferential surface of the tightening ring, as well as the small diameter pipe as well as the airtight maintenance function of the large diameter pipe and the separation and prevention function of the pipe Can be carried out at the same time, and also can be used by selecting the number of installation of the separation prevention member according to the intended use can reduce the cost, and if the pipe and the separation prevention member is a metal material, the tightening ring is a soft cylindrical It relates to a pipe connector that can be formed to prevent the penetration corrosion by preventing the penetration of air or moisture to the contact portion of the pipe and the separation prevention member.

Generally, various types of connectors are known as a medium for connecting a rubber hose, a metal or a resin pipe to a pipe or a metal pipe having a certain length. For example, a domestic patent registration number registered and filed by the present applicant 915412 (named Pipe Connection).

The pipe connector is fixed to the pipe inserted into the receiving hole of the connection socket through the tightening ring which is tightened when tightening the tightening nut to prevent the separation, when the high temperature water flows into the connection socket to soften the pipe By supporting the pipe support tube so that its shape is not deformed, the leak can be prevented in advance.

In other words, the pipe connector is used to connect the pipe and the pipe, and when the synthetic resin heating pipe embedded in the floor so that the hot water flows to heat each room of the house is softened to a high temperature There is a need for a pipe support to support the softened pipe.

The pipe connector is supplied to the worker with the packing member (O-ring), the tightening ring and the fastening nut assembled at one end of the connecting socket, and the pipe support pipe is separated even if the pipe supporting pipe is inserted into the receiving hole of the connecting socket. Since the pipe support pipe is supplied separately, it is managed by the worker.

Therefore, when assembling the pipe to the pipe connector, the operator first inserts the pipe support tube at the end of the pipe and pushes it into the receiving hole of the connecting socket, and then simply tightens the tightening nut to complete the assembly work. Can be.

However, the conventional pipe connector, due to the difficulty in manufacturing the tightening ring in one piece could not reinforce only the function of the wedge piece to bite the pipe, which is the core function, and because of this, when connecting small diameter pipes, Although the separation prevention can be performed, although the separation prevention and fixing function is important as the diameter of the pipe becomes larger, there is a problem that the separation prevention and fixing function of the large diameter pipe cannot be normally performed by the fastening ring structure of the conventional pipe connector. .

In addition, since the wedge pieces are formed in all of the plurality of tightening pieces formed on the tightening ring, regardless of the intended use, it was disadvantageous in cost reduction.

The object of the present invention for solving the above problems is by inserting the separation prevention member having a wedge piece on the inner peripheral surface of the tightening ring, as well as the small diameter pipe as well as the airtight maintenance function of the large diameter pipe and preventing and fixing the separation of the pipe Can be carried out at the same time, and also can be used by selecting the number of installation of the separation prevention member according to the intended use can reduce the cost, and if the pipe and the separation prevention member is a metal material, the tightening ring is a soft cylindrical It is formed to provide a pipe connector that can prevent the transition corrosion by preventing the penetration of air or moisture to the contact portion of the pipe and the separation prevention member.

The present invention for achieving the above object, in the pipe connector for connecting the pipe, the fluid passage is formed therein and the connecting body formed in the receiving portion to receive the end of the pipe at one end of the fluid passage; And a packing member seated on a stepped portion formed at one side of the receiving body of the connecting body, a tightening nut screwed to an outer circumferential surface of one end of the connecting body, and a screw of the tightening nut installed inside the tightening nut. When tightening, the auxiliary ring is pressed to simultaneously support the outer circumferential surface of the pipe, and a wedge piece coupled to the inner circumferential surface of the tightening ring and elastically closely attached to the outer circumferential surface of the pipe is prevented from being separated. It characterized in that it comprises a departure prevention member.

The present invention, when inserting and coupling the separation prevention member having a wedge piece in the insertion groove formed on the inner peripheral surface of the tightening ring, when tightening the tightening nut, the tightening ring of the tightening ring supports the outer peripheral surface of the pipe and at the same time the wedge piece of the pipe By forcibly pressing on the surface, it prevents the tightness and separation of small diameter pipes as well as large diameter pipes, secures the pipes securely, secures the concentricity of the pipes, and closes the space between parts, thereby improving the performance of the pipe connector.

In addition, since the number of installation of the separation preventing member can be selected and used according to the intended use, cost can be reduced.

When the pipe and the separation prevention member are made of metal, the fastening ring of the softening ring formed in the shape of a cylinder may be formed in a cylindrical shape to prevent penetration of air or moisture into the contact portion of the pipe and the separation prevention member.

In addition, by forming a sawtooth-type separation prevention jaw in the separation prevention member or by forming an escape prevention piece that is inclined at an angle to the insertion groove side, separation of the separation prevention member inserted into the insertion groove of the tightening ring is prevented.

In addition, it is possible to reduce the cost because it can be used to select the installation number of the separation prevention member is inserted into the plurality of insertion grooves of the tightening ring according to the intended use of the pipe connector.

1 is an exploded perspective view showing a pipe connector according to a first embodiment of the present invention.
Figure 2 is a perspective view and a partial cross-sectional view of the separation preventing member is assembled to the tightening ring in the pipe connector according to the first embodiment of the present invention,
3 is a cross-sectional view showing a state of temporarily assembling the tightening nut in the pipe connector according to the first embodiment of the present invention;
Figure 4 is a cross-sectional view showing a state in which the screw fully tighten the tightening nut in the pipe connector according to the first embodiment of the present invention,
5 is an exploded perspective view showing a pipe connector according to a second embodiment of the present invention.
6 is a cross-sectional view showing a state in which the tightening nut is temporarily assembled in the pipe connector according to the second embodiment of the present invention;
FIG. 7 is a cross-sectional view illustrating a state in which the tightening nut is completely screwed in the pipe connector according to the second exemplary embodiment of the present invention. FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a pipe connector according to a first embodiment of the present invention. Figure 2 is a perspective view and a partial cross-sectional view of the separation preventing member is assembled in the tightening ring in the pipe connector according to the first embodiment of the present invention, Figure 3 is a temporary assembly of the tightening nut in the pipe connector according to the first embodiment of the present invention 4 is a cross-sectional view showing a state, Figure 4 is a cross-sectional view showing a state in which the screw fully tighten the tightening nut in the pipe connector according to the first embodiment of the present invention.

As shown, the pipe connector 1 according to the first embodiment of the present invention is a connector for connecting the pipe 70, as well as a variety of valves, as well as all the products for connecting pipes, such as pipe joint elbows, tees, etc. Applicable

The pipe may be a hard or soft synthetic resin pipe and a metal pipe. In this case, when using a flexible synthetic resin pipe, it is preferable to insert and use a separate support pipe (not shown) supporting the flexible pipe at the end of the flexible pipe inserted into the connector.

The pipe connector 1 includes a connecting body 10, a packing member 20, an auxiliary ring 30, a tightening ring 50, a release preventing member 40, and a tightening nut 60. do.

First, the connection body 10, the fluid passage 11 is formed therein and the step of the fluid passage 11 so as to accommodate the end of the pipe 70 at one end of the fluid passage (11). The fork receiving part 12 is formed.

In addition, at the intermediate point of the outer circumferential surface of the connecting body 10, a polygonal extension part 14 facing the end of the tightening nut 60 is formed to protrude, and on one lateral outer circumferential surface of the connection part 14, A screw portion 15 for screwing the tightening nut 60 is formed.

Of course, the shape of the connecting body 10 is shown as an example, and when applied to a valve, elbow, tee, etc. can be changed in various forms.

On the other hand, one side of the receiving portion 12 is formed with a step portion 13 to be stepped with the receiving portion 12.

In addition, the packing member 20 is mounted on the stepped portion 13 formed at one side of the receiving portion 12 of the connecting body 10, and the packing member 20 is preferably used as an O-ring. Various materials having elasticity can be used.

Therefore, when the tightening ring 50 presses the packing member 20 through the auxiliary ring 30 by screwing the tightening nut 60, the packing member 20 is an inner surface of the step portion 13. And close contact between the outer circumferential surface of the pipe 70 to maintain airtightness.

In addition, the auxiliary ring 30 is mounted to the packing member 20 in the step portion 13 of the connecting body 10.

The auxiliary ring 30 is positioned between the packing member 20 and the fastening ring 50, and the fastening ring 50 stably holds the packing member 20 when screwing the fastening nut 60. To be pressurized.

In addition, the tightening ring 50 is installed inside the tightening nut 60 and presses the packing member 20 while tightening the tightening nut 60, and simultaneously supports the outer circumferential surface of the pipe 70. Done.

In this case, since the auxiliary ring 30 may be selectively installed between the tightening ring 50 and the packing member 20, when the auxiliary ring 30 is installed, the tightening ring 50 is the auxiliary ring 30. Pressurizes the packing member 20, and when the auxiliary ring 30 is omitted, the tightening ring 50 directly presses the packing member 20.

The tightening ring 50 is a seating portion 51 which is seated on one end of the connecting body 10 and protruded to the lower end of the seating portion 51 is stepped portion 13 of the connecting body (10) Pressurizing protrusion 52 for pressing the packing member 20 seated in the), a plurality of tightening pieces 53 formed in a plurality of parts in the circumferential direction protruding in the upper end of the seating portion 51, and the separation preventing member ( 40 is formed at each position of the tightening piece (53) of the tightening ring (50) so that the coupling is made of, and consists of a plurality of insertion grooves 54 formed to open the inner peripheral surface and one end.

Here, the outer circumferential surface of the seating portion 51 is formed to be stepped with the outer circumferential surfaces of the pressurizing protrusion 52 and the fastening piece 53 and is seated on one end of the connecting body 10.

In addition, the material of the tightening ring 50 is preferably formed of a hard synthetic resin material, and at this time, the plurality of tightening pieces 53 are separated from each other to have a constant elastic force.

In addition, sliding grooves 54a are formed at both ends of the insertion groove 54 so that the separation preventing member 40 can be inserted and coupled thereto.

Then, the tightening nut 60 is screwed to the threaded portion 15 formed on the outer circumferential surface of the connecting body (10).

The tightening nut 60 is penetrated through the pipe 70 so that the pipe 70 can penetrate therein. At this time, one end of the inner circumferential surface of the tightening nut 60 is screwed with the threaded portion 15 of the connecting body 10. The thread portion 63 is formed, and at the other end of the inner circumferential surface of the tightening nut 60, the first pressing portion having an inclined inner surface so as to press the tightening piece 53 of the tightening ring 50 toward the pipe 70 side ( 61) is formed.

In addition, a second pressing part 62 is stepped on the middle portion of the inner circumferential surface of the tightening nut 60 so as to be caught by the upper end of the seating part 51 of the tightening ring 50. That is, the inner circumferential surface of the tightening nut 60 has all of the screw portions 63, the second pressing portion 62, and the first pressing portion 61 being stepped.

The second pressing part 62 presses the tightening ring 50 toward the packing member 20 side when tightening the tightening nut 60 to the packing member 20, and the step portion 13 of the connecting body 10. ) Close to the inner surface and the outer circumferential surface of the pipe 70.

On the other hand, the inclined surface (53a) is also formed on the tightening piece (53) of the tightening ring (50) corresponding to the inclined first pressing portion 61 of the tightening nut (60).

In addition, the separation preventing member 40 is coupled to the insertion groove 54 formed on the inner circumferential surface of the tightening ring 50 and provided with a wedge piece 43 that is elastically closely attached to the outer circumferential surface of the pipe 70. The departure of 70 is prevented.

The release preventing member 40 has a multi-stage bent portion 41 is formed at both ends to be inserted along the sliding grooves 54a formed at both ends of the insertion groove 54, the multi-stage bending portion 41 is the sliding groove ( 54a) is formed so that the separation prevention jaw 42 of the sawtooth shape is formed so as to prevent the separation, and the wedge piece 43 formed by punching is formed to be inclined at a predetermined angle toward the pipe 70 on the side facing the pipe 70 do.

That is, the separation preventing member 40 is formed by processing a rectangular metal plate material into a press mold to form the multi-stage bending portion 41 and the separation prevention jaw 42, wherein the wedge piece 43 is punched into a pipe It is formed to be inclined at an angle toward 70.

Therefore, when the separation preventing member 40 is inserted into the insertion groove 54 of the tightening ring 50, the multi-stage bending portion 41 formed at both ends of the separation preventing member 40 is the insertion groove 54. Sliding is inserted along the sliding groove (54a) of the, after the insertion is completed, the serrated release prevention jaw (42) formed on the edge of the multi-stage bending portion 41 is in close contact with the inner surface of the sliding groove (54a) and tightened The separation preventing member 40 inserted into the insertion groove 54 of the ring 50 is not separated.

In addition, at the time of tightening the screw of the tightening nut 60, the plurality of tightening pieces 53 closely support the outer circumferential surface of the pipe 70 and at the same time, the wedge piece 43 of the separation preventing member 40 is connected to the pipe ( By forcibly crimping on the surface of the 70, it prevents the separation of the pipe 70, as well as firmly fixing the pipe 70, and ensures the concentricity of the pipe 70, and the space between the parts are in close contact with the pipe connector It improves the performance of (1).

In addition, since the installation number of the separation prevention member 40 inserted into the plurality of insertion grooves 54 can be selected and used according to the use purpose of the pipe connector 1, the cost can be reduced.

That is, when a small diameter pipe is used or the pressure in the pipe 70 is small, only a small amount may be installed without using the anti-separation member 40 in all the plurality of insertion grooves 54. When the pressure in the pipe 70 is large, the number of installation of the separation prevention member 40 may be increased.

In this way, since the separation preventing member 40 can be easily inserted into the insertion groove 54 of the tightening ring 50, the material and structure can be selected as well as the number of installation of the separation preventing member 40 according to the intended use. It is easy to apply to all industries.

On the other hand, when the release preventing member 40 is inserted through the open one end of the insertion groove 54, the wedge piece 43 in the inward direction (pipe side direction) through the open inner peripheral surface of the insertion groove 54 It will protrude.

5 is an exploded perspective view showing a pipe connector according to a second embodiment of the present invention. FIG. 6 is a cross-sectional view illustrating a state in which a tightening nut is temporarily assembled in a pipe connector according to a second embodiment of the present invention, and FIG. 7 illustrates a state in which a tightening nut is completely screwed in a pipe connector according to a second embodiment of the present invention. As a cross-sectional view showing the structure of the tightening ring 50 and the detachment preventing member 40 of the first embodiment described above, only the parts different from the first embodiment will be described below.

In the first embodiment described above, the tightening ring 50 is formed of a hard synthetic resin material. In the second embodiment, the fastening ring 50 is formed of a soft synthetic resin material.

Such a soft tightening ring 50 is formed on the one end of the connection body 10 and the mounting part 51 protrudes from the lower end of the seating part 51 to form a step of the connection body 10. A pressure protrusion 52 for pressing the packing member 20 seated in the 13, a tightening piece 53 protruding in a cylindrical shape on the upper end of the seating part 51, and the separation preventing member 40 are inserted. The inner circumferential surface of the tightening ring 50 is formed to be spaced apart from each other in a circumferential direction so as to be coupled to each other, and the inner circumferential surface and one end portion are formed of a plurality of insertion grooves 54 to be opened.

That is, in the first embodiment, the tightening piece 53 of the tightening ring 50 is divided into plural, but in the second embodiment, the tightening piece 53 is not divided into a plurality but is formed in a single cylindrical shape. .

When the soft tightening ring 50 is used as described above, the cylindrical tightening piece 53 is elastically in close contact with the outer circumferential surface of the pipe 70 and the inner circumferential surface of the tightening nut 60 when screwing the tightening nut 60. To prevent the penetration of air or moisture to the contact portion of the separation preventing member 40 and the pipe 70.

This is because if the pipe 70 and the separation prevention member 40 are all made of metal, when the air or moisture penetrates into the contact portion of the pipe 70 and the separation prevention member 40, transition corrosion occurs, so that the air or moisture In order to prevent the penetration of the tightening ring 50 is formed of a soft synthetic resin material or rubber material.

In addition, the separation preventing member 40 is formed with a bent portion 45 bent at right angles at both ends and one end of the insertion direction so as to be inserted along the sliding grooves 54a formed at both ends of the insertion groove 54. At the other end of the direction, the release preventing piece 46 is formed to be inclined at an angle to the insertion groove 54 side so as to be elastically caught on the inner side of the insertion groove 54, and the side formed toward the pipe 70 by punching The wedge piece 43 is formed to be inclined at an angle toward the pipe 70.

That is, the separation preventing member 40 is to process a rectangular metal plate member with a press die, three sides of the metal plate is bent at a right angle to form the bent portion 45 and the other side is bent at an angle to a certain angle. To form the separation preventing piece 46. At this time, the wedge piece 43 is punched to form a predetermined angle toward the pipe 70.

On the other hand, the separation prevention member 40 is the elastic force of the wedge piece 43 and the separation prevention piece 46 is improved as the use of a thin metal plate material, when the separation prevention member 40 is formed of a thin metal plate material In addition, it becomes difficult to manufacture (molding) the insertion groove 54 of the tightening ring 50 for inserting and coupling the separation preventing member 40.

Therefore, by forming the bent portion 45 around the separation preventing member 40 to increase the overall thickness of the separation preventing member 40, it is difficult to manufacture the insertion groove 54 of the tightening ring 50 At the same time, the elastic force of the wedge piece 43 and the separation prevention piece 46 can also be improved.

On the other hand, the predetermined angle inclined departure preventing piece 46 is preferably formed to protrude further toward the insertion groove 54 side than the bent portion (45).

Accordingly, when the release preventing member 40 is inserted into the insertion groove 54 of the tightening ring 50, the bent portion 45 formed at both ends of the release preventing member 40 is inserted into the insertion groove 54. Sliding is inserted along the sliding groove (54a) of, the insertion end of the tightening ring 50 after the insertion is completed because the end of the separation preventing piece 46 is in close contact with the inner surface of the insertion groove 54 elastically close The separation preventing member 40 inserted into the 54 is not separated.

Hereinafter, the operation of the pipe connector 1 according to the present invention will be described. Here, description will be made based on the first embodiment.

First, the packing member 20 and the auxiliary ring 30 are seated on the stepped portion 13 of the connecting body 10, and then the separation preventing member 40 is pre-assembled at one end of the connecting body 10. Screw the tightening nut 60 to the threaded portion 15 of the connecting body 10 in a state in which the ring 50 is seated.

At this time, the tightening nut 60 is temporarily assembled to such an extent that the pipe 70 can be easily inserted without screwing completely.

The worker supplied with the prefabricated pipe connector 1 inserts the pipe 70 into the pipe connector 1, that is, when the pipe 70 is pushed into the pipe connector 1, the pipe 70 is inserted into the pipe connector 1. ) Is inserted into the receiving portion 12 of the connecting body 10 through the inner side of the tightening nut 60, the tightening ring 50, the auxiliary ring 30, the packing member 20.

Afterwards, when the worker completely screw the tightening nut 60, the pressure protrusion 52 of the tightening ring 50 is assisted by the first and second pressing parts 61 and 62 of the tightening nut 60. Pressing the ring 30 and the packing member 20 and the tightening piece 53 is in close contact with the outer circumferential surface of the pipe 70, and at the same time prevent separation from being coupled to the inner insertion groove 54 of the tightening ring 50 The wedge piece 43 of the member 40 is forcibly pressed onto the surface of the pipe 70, thereby preventing the pipe 70 from being detached and also firmly fixing the pipe 70 and concentricity of the pipe 70. Secured.

In addition, the packing member 20 pressurized by the pressure protrusion 52 is in close contact with the inner surface of the step portion 13 and the outer peripheral surface of the pipe 70 to maintain airtightness.

On the other hand, when the pipe 70 is to be separated again, the pipe 70 may be separated even if it is loosened to some extent without loosening the tightening nut 60 completely.

1: pipe connector 10: connecting body
11: fluid passage 12: receiving portion
13: step 14: extension
15,63: thread
20: packing member 30: auxiliary ring
40: departure preventing member 41: multi-stage bending portion
42: release bump 43: wedge piece
45: bent portion 46: separation prevention piece
50: tightening ring 51: seating portion
52: pressure projection 53: tightening piece
54: insertion groove
60: tightening nut 61: the first pressing part
62: second pressing portion 70: pipe

Claims (5)

In the pipe connector for connecting the pipe 70,
A connection body 10 having a fluid passage 11 therethrough and an accommodation portion 12 formed to receive an end of the pipe 70 at one end of the fluid passage 11;
A packing member 20 seated and installed on the stepped portion 13 formed at one side of the receiving portion 12 of the connecting body 10;
Fastening nut 60 is screwed to the outer peripheral surface of one end of the connecting body 10,
A tightening ring 50 installed inside the tightening nut 60 and pressurizing the packing member 20 while simultaneously tightening the tightening nut 60 and supporting the outer circumferential surface of the pipe 70.
Including a separation preventing member 40 coupled to the inner peripheral surface of the tightening ring 50 and provided with a wedge piece 43 elastically in close contact with the outer peripheral surface of the pipe 70 to prevent the separation of the pipe 70. Pipe connector, characterized in that made. The method of claim 1,
The tightening ring 50 has a seating portion 51 seated at one end of the connection body 10 and a stepped portion 13 of the connection body 10 protruding from a lower end of the seating portion 51. Pressurizing protrusion 52 for pressing the packing member 20 seated in the), a plurality of tightening pieces 53 formed in a circumferential direction protruding in the upper end of the seating portion 51, and the separation preventing member 40 The pipe connector characterized in that it is formed for each tightening piece (53) position of the tightening ring (50) so that the coupling is inserted into the insert ring, and a plurality of insertion grooves (54) formed to open the inner circumferential surface and one end. The method of claim 2,
The release preventing member 40 has a multi-stage bending portion 41 is formed at both ends to be inserted along the sliding grooves 54a formed at both ends of the insertion groove 54, the multi-stage bending portion 41, the sliding groove The separation prevention jaw 42 is formed to be caught by the 54a, and the separation prevention jaw 42 is formed, and the wedge piece 43 formed by punching is formed to be inclined at a predetermined angle toward the pipe 70 at the side facing the pipe 70. Pipe connector. The method of claim 1,
The tightening ring 50 has a seating portion 51 seated at one end of the connection body 10 and a stepped portion 13 of the connection body 10 protruding from a lower end of the seating portion 51. The pressure protrusion 52 for pressing the packing member 20 seated in the), the tightening piece 53 protruded in a cylindrical shape on the upper end of the seating portion 51, and the separation preventing member 40 is inserted and coupled Pipe connector, characterized in that formed on the inner circumferential surface of the tightening ring 50 in a circumferential direction spaced apart from each other, as well as a plurality of insertion grooves 54 formed to open the inner circumferential surface and one end. The method of claim 4, wherein
The release preventing member 40 has a bent portion 45 bent at right angles at both ends and one end of the insertion direction to be inserted along the sliding grooves 54a formed at both ends of the insertion groove 54, and the insertion direction is provided. At the other end, the separation preventing piece 46 is formed to be inclined at an angle toward the insertion groove 54 so as to be elastically caught on the inner surface of the insertion groove 54, and the wedge formed by punching at the side facing the pipe 70. Pipe connector characterized in that the piece 43 is formed to be inclined at an angle toward the pipe (70).

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