KR20140044347A

KR20140044347A - Self- tightning pipe clamp

Info

Publication number: KR20140044347A
Application number: KR1020140022481A
Authority: KR
Inventors: 정연우; 김현석
Original assignee: 정연우; 김현석
Priority date: 2014-02-26
Filing date: 2014-02-26
Publication date: 2014-04-14

Abstract

The present invention relates to a self-tightening pipe clamp. A self-tightening pipe clamp (100) includes a clamp (110) that has a pipe insertion portion (112) which has a through-hole (111) formed at the center, into which a pipe (10) is inserted, and which has a diameter larger than the diameter of the through-hole (111), and an inclined portion (113) which is formed continuously from the pipe insertion portion (112) and has an inclined expanding outward, a threaded portion (114) being formed along an outer circumferential edge of the clamp (110); a pipe tightening member (120) where a first inclined portion (121) that has an outer diameter narrowing toward a lower side is inserted and disposed between the pipe (10) inserted into the pipe insertion portion (112) and the inclined portion (113), a second inclined portion (122) is formed on an upper side with an outer diameter narrowing toward an upper side, a first O-ring (123) and a second O-ring (124) being respectively disposed in the lower side and the upper side; and a clamp nut (130) where an internal threaded portion (131) that is screw-coupled with the threaded portion (114) is formed in a lower side and a pipe through-hole (132) is formed at the center on an upper side for the pipe (10) to pass therethrough, the clamp nut (130) being formed to have a widening diameter when a clamp inclined portion (133) that is in contact with and pressurizes the second inclined portion (122) when being lowered moves to the lower side successively to the pipe through-hole (132).

Description

Self-Tightning Pipe Clamps

The present invention relates to a self-adhesive piping connector, the through hole 111 is formed in the center, the pipe 10 is inserted and the pipe insertion portion 112 having a diameter larger than the through hole 111 and the pipe insertion A connector 110 having a slant portion 113 formed in series with the inclined portion 112 and having an inclined portion extending outwardly, and having a threaded portion 114 formed along an outer circumference thereof; and the pipe insertion portion 112. The first inclined portion 121 is inserted between the pipe 10 and the inclined portion 113 inserted into the lower side is narrowed down, the upper diameter is narrowed to the upper side, A pipe contact member 120 having two inclined portions 122 and provided with a first O-ring 123 and a second O-ring 124 in the lower side and the upper side, respectively; and on the threaded portion 114. The internal threaded portion 131 to be screwed is formed in the lower side, and the upper center A pipe through-hole 132 through which the pipe 10 passes is formed, and when the clamp inclined portion 133 that comes into contact with the second inclined portion 122 and presses down goes down the pipe through-hole 132 downwards. A clamp nut 130 formed to have a wider diameter; It relates to a self-contact piping connector 100, characterized in that it comprises a.

Generally, pipes are widely used for transporting gases such as fluids or gases such as water or oil. These pipes are manufactured and sold to a certain standard (length) due to transportation or handling restrictions. Therefore, when constructing a section longer than the standard length of the pipe or constructing the bent section, it is necessary to use a pipe connection device or weld the pipes to each other.

The piping connection device is a device for connecting pipes used in piping. There are various types, and in particular, a piping connection device having a structure for preventing a pipe inserted in a connection port from being escaped by using a grip ring is connected Due to the ease of operation, it is widely used for plumbing work.

1 and 2, a conventional pipe connecting method is a method in which a pipe 3 is inserted into a nut 2 provided with a female thread 2a and then an O-ring 6 and a washer 5 are fastened to the pipe 3, The nut 2 is screwed onto the male thread 1a of the pipe 1 in a state where the grip ring 4 is installed in order. Thus, when the protruding portion 2b of the nut 2 compresses the O-ring 6 in a state where the grip ring 4 provided on the pipe 3 is in close contact with the first stopper 1b of the pipe 1, 6 and the outer peripheral surface of the pipe 3 are sealed so that the grip 4 of the grip ring 4 is pressed against the pipe 3 as the washer 5 pushes the grip ring 4, So that the pipe 3 is clamped so as not to be separated from the pipe connecting device. This operation is performed until the nut 2 is completely screwed into the pipe 1. [

First, since the clamping of the pipe connection device and the pipe is dependent on one grip ring, the pipe is a high-pressure fluid or gas flow, or in the case of a defect in the grip ring, the clamping force supporting the pipe is reduced and the pipe in the pipe connection device There was a case where is separated.

If the pipe is separated while the pipe through which the gas passes is installed, or the gas is leaked due to the inability to maintain the airtightness, it is a fatal defect that causes a great disaster.

Second, the insertion (installation) depth of the grip ring fitted to the pipe must be maintained at a predetermined depth. If the insertion depth of the grip ring is short, the pipe is pulled out from the pipe connection device, and conversely, if the insertion depth of the grip ring is deep, When screwing the nut into the pipe, the grip ring is damaged by tightening the nut while the tip of the pipe is in close contact with the second stopper of the pipe, the outer circumferential surface of the pipe is scratched by the grip, or the bottleneck of the pipe is caused by excessive compression of the O-ring. The phenomenon is caused and causes the pipe to escape.

Third, in the process of screwing the nut to the pipe, there is no function of pushing the pipe in close contact with the second stopper of the pipe, so that the tip of the pipe and the pipe are spaced apart as shown in FIG. It caused the gas to leak.

Fourth, since there is no function to seal the inside of the nut, moisture penetrates into the inside, and thus, the grip ring and the washer are corroded with prolonged use, thereby reducing the clamping force.

However, in the conventional pipe connection method, when the insertion depth of the grip ring 4 inserted into the pipe 3 is limited to maintain a predetermined depth and the insertion depth of the grip ring 4 is short, When the pipe 3 is detached and the insertion depth of the grip ring 4 is deeper on the contrary, when the nut 2 is screwed into the pipe 1, the tip of the pipe 3 is connected to the second stopper 1c of the pipe The grip ring 4 is damaged by tightening the nut in the close contact state or the outer circumferential surface of the pipe 3 is scratched by the grip 4a or excessive compression of the O-ring 6 causes bottleneck of the pipe, Which is the cause of the separation. Moreover, the conventional piping connection method shows a fatal defect in which the pipe 3 is separated from the piping connection apparatus by varying the assembling order of the parts when the operator's mistake or work skill is lowered.

In order to solve the problems of the existing invention, "Pipe connection device (Korean Patent No. 10-1171692)" of Patent Document 1, the first grip ring and washer and O-ring having a grip on the outer peripheral surface of the pipe fitted to the nut In the pipe connecting device for installing the pipes fitted to the nut in order to connect to the pipe and then screwing the nut to the pipe, the second grip ring is provided with an elastic piece having an inwardly bending piece and a projection to the rear end of the O-ring and the nut Characterized in that the elastic piece is accommodated and at the same time the evacuation groove provided with the inclined surface, the elastic piece is pressed inward by the inclined surface and clamped with the pipe immediately before the nut is screwed in the pipe, and at the same time pushing the pipe to the pipe side A connection device has been proposed.

However, the existing invention of Patent Document 1 also has a complicated shape, so that the second grip ring is difficult to process and the unit cost increases, and moisture penetrates into the spaced gap between the nut 2 and the pipe 3. As a result, the grip ring and the washer may be corroded with a prolonged use, thereby reducing the clamping force. On the other hand, even with an O-ring inserted into the recessed groove, the problem of moisture penetration may be solved to some extent, but it is very difficult to fasten and install the nut by friction between the O-ring and the pipe. A new occurrence will occur. In addition, in this case, since the support of the pipe is supported only by the elastic O-ring, the pipe may move or shake with respect to the pipe, so that the coupling may be easily released or the fluid may leak.

In addition, the sealing between the pipe and the pipe only depends on the expansion of the O-ring, which is squeezed in the longitudinal direction by the grip rings, but the grip ring is easily broken because it has to be made of a thin plate having an elastic piece in structure and function. This happens and there is a problem that leakage occurs easily.

Patent Document 1: Republic of Korea Patent No. 10-1171692

The present invention solves the problems of the existing inventions described above, and can be used in a variety of pipe connection structure in a very simple and robust structure, the upper and lower sides are deformed inward by the operation to fasten the clamp nut is introduced It is an object of the present invention to provide a self-adhesive piping connector that securely seals the pipe up and down while being spaced at a predetermined interval through the pipe adhesion member, thereby enabling a reliable sealing.

In addition, the clamping nut and the pipe contact member are brought into tight contact with each other by the deformation of the pipe contact member, thereby maintaining a mechanical rigidity and a self-adhesive pipe connector that can prevent moisture or foreign substances from entering into the inside. Let it be the subject.

In addition, when tightening, the pipe is clamped to the lower side to close the pipe.

In order to achieve the above object, the present invention, the through hole 111 is formed in the center, the pipe 10 is inserted and the pipe insertion portion 112 having a diameter larger than the through hole 111, and the pipe insertion A connector 110 having a slant portion 113 formed in series with the inclined portion 112 and having an inclined portion extending outwardly, and having a threaded portion 114 formed along an outer circumference thereof; and the pipe insertion portion 112. The first inclined portion 121 is inserted between the pipe 10 and the inclined portion 113 inserted into the lower side is narrowed down, the upper diameter is narrowed to the upper side, A pipe contact member 120 having two inclined portions 122 and provided with a first O-ring 123 and a second O-ring 124 in the lower side and the upper side, respectively; and on the threaded portion 114. An internal threaded portion 131 to be screwed is formed inside the lower side, and the pipe 10 in the upper center thereof. Pipe through hole 132 through which the through) is formed, and when the clamp inclined portion 133 that comes into contact with the second inclined portion 122 and descends downwards in succession to the pipe through hole 132, the diameter becomes wider. Clamp nut 130 is formed to have; And a control unit.

In addition, the connector 110, the wrench binding portion 117 is further formed on the center outer peripheral surface, the pipe insertion portion (112, 112 '), the inclined portion (113, 113') and the threaded portion on both sides of the wrench binding portion 117. (114, 114 '),

Pipe contact members 120 and 120 'and clamp nuts 130 and 130' are connected to both sides of the connector 110, respectively.

In addition, the sealing inclined portion 118 is formed in succession to the through-hole 111 of the connector 110, which can be in close contact with the distal end portion 21 of the pipe connection portion 20;

A coupling screw part 119 which is further formed at the connector 110 so as to be screwable to the coupling screw part 22 of the pipe connection part 20; And further comprising:

In addition, the first recessed groove 125 and the second recessed groove 126 are further formed between the first O-ring 123 and the second O-ring 124 on the inner peripheral surface of the pipe contact member 120; And further comprising:

In addition, the crimping O-ring installation groove 115 is further formed at the inner end of the pipe insertion portion 112;

The compressed o-ring installation groove 115 is installed in the compressed o-ring 116; characterized in that it further comprises.

According to the present invention, while being able to be used in a variety of pipe connection structure in a very simple and robust structure, the upper and lower sides are deformed inward direction by the operation of tightening the clamp nut through the pipe contact member is introduced In the spaced apart state, while firmly supporting the upper and lower pipes there is an advantage that can be sealed tightly.

In addition, the clamping nut and the pipe contact member are brought into tight contact with each other by a deformation of the pipe contact member, thereby maintaining mechanical rigidity and blocking the ingress of moisture or foreign matter into the inside.

1 is an exploded perspective view showing a pipe connection device according to an embodiment of the present invention
2: longitudinal section of FIG. 1
3 is a cross-sectional view showing the configuration of a self-adhesive piping connector according to an embodiment of the present invention.
4 is an exploded perspective view showing the configuration of a self-adhesive piping connector according to an embodiment of the present invention.
5 is a cross-sectional view showing the configuration of a self-adhesive piping connector according to a second embodiment of the present invention.
6 is a cross-sectional view showing the configuration of a self-adhesive piping connector according to a third embodiment of the present invention.
7 is a cross-sectional view showing the operation of the self-adhesive piping connector according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the self-adhesive pipe connector according to an embodiment of the present invention. First, it should be noted that, in the drawings, the same components or parts are denoted by the same reference numerals whenever possible. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the subject matter of the present invention

Self-contained piping connector of the present invention, as shown in Figures 3 and 4, largely the connector 110, the pipe contact member 120 and the clamp nut 130; And a control unit.

First, the connector 110 will be described. As shown in FIGS. 3 and 4, the connector 110 has a through hole 111 formed at the center thereof, and a pipe 10 is inserted into the pipe insert 112 having a larger diameter than the through hole 111. And an inclined portion 113 formed in series with the pipe insertion portion 112 and having an inclined portion extending outwardly, and a threaded portion 114 is formed along the outer circumference. On the other hand, the connector can be implemented by processing so that one end of the various pipe connectors having the above configuration. That is, it is also possible to implement by processing so that one end of the pipe connecting member of various forms, such as elbow, tee-connector, manifold (manifold).

On the other hand, the connector 110, as shown in Figure 5, it is also possible to be configured to connect the two pipes so that the above-described configuration is respectively processed at both ends. That is, the connector 110 includes the pipe insertion parts 112 and 112 ', the inclined parts 113 and 113', and the threaded parts 114 and 114 'on both sides, and the pipe contact members 120 and 120 on both sides of the connector 110, respectively. ') And clamp nuts 130, 130' are also possible to be connected. In this case, the connector 110, as shown in Figure 5, so that the wrench binding portion 117 is further formed on the center outer peripheral surface, it is preferable to facilitate the operation of fixing or turning with a wrench when tightening. In addition, the connector 110 may be processed to have different diameters of the pipe insertion portions 112 and 112 'on both sides so as to connect pipes 10 and 10' having different diameters.

As illustrated in FIG. 6, the connector 110 may be implemented to have a function of a kind of adapter that can be mounted on the existing pipe connection 20. In this case, as shown in FIG. 6, the connector 110 further includes a coupling screw part 119 further formed on the connector 110 to be screwable to the coupling screw part 22 of the pipe connection part 20. It is preferable to be configured. In addition, when the pipe connecting portion 20 has a terminal inclined portion 21, such as a pipe connecting portion of the service valve, the connector 110 is a terminal inclined portion (20) of the pipe connecting portion 20 as shown in FIG. 21 is preferably configured to further include a closed inclined portion 118 that can be in close contact.

On the other hand, in order to ensure a more effective sealing performance by allowing sealing between the end of the connector 110 and the pipe 10, the connector 110 is the pipe insertion portion 112 as shown in FIG. It is preferable that the compression o-ring installation groove 115 further formed at the inner end, and the compression o-ring installation groove 115 is further provided to the compression o-ring installation groove 115.

Next, the pipe close contact member 120 will be described. As shown in FIGS. 3 and 4, the pipe contact member 120 has an outer diameter narrowed downward between the pipe 10 inserted into the pipe insertion unit 112 and the inclined portion 113. The first inclined portion 121 is inserted and installed, and on the upper side, a second inclined portion 122 is formed, the outer diameter of which is narrowed upward, and the first o-ring 123 and the second inside the lower and upper portions, respectively. O-ring 124 is provided. The pipe contact member 120 is preferably made of a metal material (for example, brass) that can be appropriately deformed by an external force with good adhesion, but is not limited to this may be made of a synthetic resin material having an appropriate rigidity. Do.

On the other hand, when the clamp nut 130 is fastened to the pipe contact member 120, the upper and lower sides of the pipe contact member 120 is deformed in the upper and inward direction more easily as shown in FIG. The first O-ring on the inner circumferential surface of the pipe contact member 120 as shown in FIG. 3 so that the first O-ring 123 and the second O-ring 124 may be in close contact with the pipe 10 more firmly. It is preferable that the first recessed groove 125 and the second recessed groove 126 further formed between the 123 and the second O-ring 124, respectively.

Next, the clamp nut 130 is demonstrated. 3 and 4, the clamp nut 130 has an internal threaded portion 131 which is screwed to the threaded portion 114 is formed in the lower side, the pipe 10 in the upper center A pipe through hole 132 that passes through is formed, and when the clamp inclined part 133 that comes into contact with the second inclined portion 122 and descends after the pipe through hole 132 goes downward, the diameter is widened. It is.

Hereinafter, the operation of the self-adhesive piping connector 100 according to an embodiment of the present invention will be described with reference to FIG.

First, the pipe 10 is inserted into the pipe insertion part 112, and then the pipe close contact member 120 is inserted into the pipe 10.

After that, the clamp nut 130 is inserted into the connector 110 and starts to tighten.

When the clamp nut 130 is lowered while being fastened to the connector 110, the pipe contact member 120 is pressed up and down between the connector 110 and the clamp nut 130.

At this time, the first inclined portion 121 is pressed inward by the inclined portion 113, and the second inclined portion 122 is also inward by the clamp inclined portion 133. The first O-ring 123 and the second O-ring 124 are in close contact with each other and sealed to the upper side and the lower side of the pipe 10 while being compressed. On the other hand, between the inclined portion 113 and the first inclined portion 121 is also tightly closed by the pressing force, the clamp between the inclined portion 133 and the second inclined portion 122 is also in close contact by the pressing force It is sealed. In addition, as the fastening proceeds, the lower end of the first inclined portion 121 and the upper end of the second inclined portion 122 are also drawn inwardly to be in contact with the pipe 10 and the pipe 10 is opened. Mechanically supported. Therefore, both the upper side and the lower side of the pipe 10 are supported at a predetermined interval while maintaining a very tightly sealed state mechanically.

On the other hand, as the first inclined portion 121 and the second inclined portion 122 is drawn inward, the vertical length of the pipe contact member 120 is shortened. Therefore, since the clamp nut 130 is fastened, the length of the up-down direction is reduced in the state in which the pipe contact member 120 is crimped and supported by the pipe 10. As a result, the pipe 10 is shown in FIG. 7. Pulls down to closely contact the crimped O-ring 116 and additionally provides a more efficient sealing structure.

In the foregoing, optimal embodiments have been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Piping
20: pipe connection 21: end slope
22: slope
100: self-contained piping connection
110: connector 111: through hole
112: pipe insertion portion 113: inclined portion
114: thread 115: crimping O-ring mounting groove
116: crimped O-ring 117: wrench binding portion
118: sealing inclination 119: coupling screw
120: piping contact member 121: first inclined portion
122: second inclined portion 123: first O-ring
124: second O-ring
125: first recessed groove 126: second recessed groove
130: clamp nut 131: internal thread
132: pipe through hole 133: clamp inclined portion
134: wrench coupling

Claims

A through hole 111 is formed in the center thereof, and the pipe 10 is inserted into the pipe insertion part 112 having a diameter larger than that of the through hole 111, and is formed in succession to the pipe insertion part 112 and extends outward. A connector 110 having an inclined portion 113 having an inclined portion and having a threaded portion 114 formed along an outer circumference;
Between the pipe 10 inserted into the pipe inserting portion 112 and the inclined portion 113, the outer diameter of the first inclined portion 121 is narrowed to the lower side is inserted is installed, the outer diameter is installed on the upper side A second inclined portion 122 which is narrowed toward the upper side and is formed, the pipe contact member 120 having a first O-ring 123 and a second O-ring 124 installed in the lower side and the upper side, respectively;
An internal threaded portion 131 screwed to the threaded portion 114 is formed inside the lower side, and a pipe through-hole 132 through which the pipe 10 passes is formed at an upper center thereof, and when descending, the second slope A clamp nut 130 which is formed such that a diameter of the clamp inclined portion 133 that contacts and compresses the portion 122 goes downward after the piping through hole 132 is widened; Self-contained piping connector 100, characterized in that comprising a.

The method according to claim 1,
The connector 110 has a wrench binding portion 117 further formed on a central outer circumferential surface thereof, and the pipe insertion portions 112 and 112 ', the inclined portions 113 and 113' and the threaded portions 114 and 114 on both sides of the wrench binding portion 117. '),
Self-adhesive piping connector 100, characterized in that the pipe contact member 120, 120 'and the clamp nut (130, 130') are connected to both sides of the connector 110, respectively.

The method according to claim 1,
A sealing inclined portion 118 which is formed successively in the through hole 111 of the connector 110 and may be in close contact with the distal end portion 21 of the pipe connecting portion 20;
A coupling screw part 119 which is further formed at the connector 110 so as to be screwable to the coupling screw part 22 of the pipe connection part 20; Self-adhesive piping connector 100, characterized in that the configuration further comprises.

The method according to any one of claims 1 to 3,
A first recessed groove 125 and a second recessed groove 126 which are further formed between the first O-ring 123 and the second O-ring 124 on the inner circumferential surface of the pipe contact member 120; Self-adhesive piping connector 100, characterized in that further comprises a.

The method according to claim 4,
A crimping o-ring installation groove 115 further formed at an inner end of the pipe insertion portion 112;
Self-adhesive piping connector 100, characterized in that it comprises a; further comprises a compressed O-ring (116) is installed in the compressed O-ring installation groove (115).