KR100674497B1 - A connector for prevent pipe tube of cable using houses - Google Patents

Abstract

A corrugated protection pipe connector of a cable for an apartment house is provided to prevent a corrugated protection pipe from being separated by limiting rotations of two corrugated protection pipe connectors due to a rotation prevention tube. In a corrugated protection pipe connector of a cable for an apartment house, two corrugated protection pipes prevent water from penetrating into the inside by being sealed with a connection unit. The first corrugated protection pipe is fixedly inserted into a first corrugated protection pipe connector(20) by comprising the first corrugated protection connector(20), the second corrugated protection connector(40), an O-ring(50), a rotation prevention pipe(60), an external fixing pipe(70), and a putty. The second corrugated protection pipe is inserted into the second corrugated protection pipe connector(40). The rotation prevention pipe(60) is inserted not to rotate the first corrugated protection pipe connector(20) and the second corrugated protection pipe connector(40) with respect to each other. And, the external fixing pipe(70) seals between the first corrugated protection pipe connector(20) and the second corrugated protection pipe connector(40) by pressing the rotation prevention pipe(60) in a rear direction.

Description

A connector for prevent pipe tube of cable using houses}

1 is a perspective view showing a wave protection tube connecting fastener of the wire for the apartment house of the present invention.

Figure 2 is an exploded perspective view showing a wave protection tube connecting fastener of the wire for the apartment house of the present invention.

Figure 3 is an exploded perspective view of the other direction showing the corrugated protective tube connecting fastener of the wire for the multi-family house of the present invention.

Figure 4 is a cross-sectional view showing a wave protection tube connecting fastener of the wire for the apartment house of the present invention.

 <Brief description of symbols for the main parts of the drawings>

1: wire 10: 1st wave protection tube

11: second wave protection tube 12: connection

20: first wave protection tube fixing sphere 21: hollow part

22: spiral groove 23: insertion round hole

24: holding part 25: thread

26: rotation preventing portion 27: protrusion

28: step 29: anti-rotation protrusion

30: slope 31: groove

40: second wave protection tube fixing sphere 41: hollow part

42: insert 43: O-ring groove

44: spiral groove 45: rotation preventing portion

46: anti-rotation protrusion 47: inclined surface

48: groove 49: grip

50: O-ring 60: anti-rotation pipe

61: round tube 62: pressing jaw

63: rotation inhibiting projection 64: inclined surface

65: home 70: external fixing pipe

71: round tube 72: thread

73: grip portion 74: step

80: putty

The present invention relates to a corrugated protective tube connecting fastener of an electric wire for a multi-family house, and more particularly, it is possible to connect the corrugated protective tube of the spiral formed in a spiral shape on the outer circumferential surface by connecting them to each other and to securely close the end of the corrugated protective tube. The present invention relates to a corrugated protective tube connection fastener of an electric wire for a multi-family house, which is crimped together to seal a gap to prevent leakage.

Conventionally, connection connection structure of various pipes has been connected by using corresponding sockets, flanges, semi-circular joints, etc. according to the shape, material, and use of the pipes. It was preferred in that it is securely fastened.

The present inventors have tested the various types of leak prevention means using semicircular connectors, which are relatively easy to fasten in the connection of spiral wave tubes, and have proposed the following connection structure (Patent Application No. 97-18503).

In other words, the most preferable method for connecting the tubular body is to weld the joint surface, but synthetic resin material is weak in the connection portion, it is necessary to reinforce it with a constant connection.

Therefore, the water packing is inserted into one end of the concave part, which is the end of the connection part of both spiral wave pipes, and the entire rubberized part is wrapped with an unvulcanized rubber sheet. Since the sheet is soft and has a strong adhesive strength, the sheet is in close contact with the outer peripheral surface of the joint and fills the gap of the joint, thereby providing a sealing effect comparable to that of welding.

However, as a result of testing the above connection leakage preventing structure, a relatively good leakage preventing effect could be obtained, but in order to improve the compressive force of the rubber sheet, a sheet having a certain thickness should be used. In the overlapping part of the sheet, a gap is formed due to the step of the thick thickness, and the gap in the overlapping part may not be completely sealed even when pressurized by the fastening of the connection port, so that there is a fear of leakage through this. It would have been.

In addition, since the rubber sheet which is not vulcanized is ductile, when the clamping pressure of the connection port is received, the thickness thereof becomes too thin and may be pushed out to the both ends of the connection to an unnecessary degree, which results in a weakening of the sealing force. There was a fear that the purpose of preventing leakage.

According to practical use experience, when the frictional force of the packing produced during the above tightening operation is such that the tightening operation is not hindered, the packing is not tight enough to prevent leakage, and it is common under the compressive force that can be expected to prevent leakage. It is the situation that the execution is not put to practical use until now as the fastening work is impossible.

The connection structure of these pipes has been connected with sockets, flanges, semicircular joints, etc. according to the material and use of the pipes, but the double semicircular connectors are relatively easy to use and are securely fastened. I have preferred it.

According to this experience, the wave protection tube connected by the conventional connection structure is buried in a place where floating settlement can occur, and according to the present experience, the tensile strength of the connected connection structure is weak and the seams of both connection tubes are opened by external pressure such as floating settlement to prevent leakage. It will not be possible to maintain the function continuously.

In addition, when the two corrugated protective tubes are joined, there is a problem that the connection part is opened and leaked due to the distortion of the corrugated protective tube.

Particularly, spiral corrugated protective tubes (hereinafter referred to as corrugated protective tubes) in which spirally protruding portions and recesses are formed by embedding steel sheet reinforcement materials are excellent in pressure resistance, and the demand for radicals is rapidly increasing. It is too well known in the art and among consumers that it cannot be done or is not practical, which raises many problems in the use of corrugated sheaths.

Therefore, in order to expand and widen its use, it is necessary to improve the connection structure which can reliably prevent leakage and easily withstand the tensile force acting on the corrugated protective tube.

The present invention has been made in order to solve the problems described above, and the first wave protection tube fixture and the second wave protection tube to compress the two to increase the adhesion between the two tube to protect the tube, the first wave protection tube fixture and each The purpose of the present invention is to provide a corrugated protective tube connection fastener for a strong multi-family wire, which has a two-wave protective tube fixing device to increase the bonding force and does not drop in the tensile force acting on the connection portion of the corrugated protective tube.

And the finish is putty to achieve a complete watertight so that water does not enter the corrugated protective tube.

In addition, there is an object to prevent the corrugated protective tube does not rotate so as to prevent the connection portion coupled to open.

In order to achieve the object as described above, the present invention has a gripping portion formed at one end of the body having a hollow portion formed therein, a spiral groove is formed in the hollow portion, and the end of the first wave protection tube is inserted and fixed, and the spiral groove ends. A wide diameter insertion circular hole is formed therein, a protrusion is formed on the outside of the central portion of the body to form a screw thread on the outer diameter thereof, and a rotation preventing portion of an outer diameter smaller than the protrusion is formed on the other end of the body. A first wave protective tube fixing member having a plurality of anti-rotation protrusions formed along a circumference at a predetermined interval; A gripping portion is formed at one end of the body having a hollow portion formed therein, and a spiral groove is formed in the entire inner diameter of the hollow portion to insert and fix the second wave protection tube, and a grip portion is formed around an end portion in which the second wave protection tube is inserted. The O-ring groove is formed along the outer diameter of the opposite end, the insertion portion is inserted into the insertion circular hole of the first wave protection tube fixture, protrudes along the outer diameter at the center of the body to form an anti-rotation portion, A second wave protection tube fixing member having a plurality of anti-rotation protrusions formed in a longitudinal direction along a circumference; An O-ring which is inserted into an O-ring groove of the second wave protection tube fixing member to seal the insertion circular hole and the insert; One end of the round tube is bent inwardly to form a pressing jaw to reach the anti-rotation portion of the second wave protection tube fixture, a plurality of rotation inhibiting projections are formed in the longitudinal direction at regular intervals along the inner diameter of the circular tube. The first wave protection tube fitting is inserted over the second wave protection tube fixture, and is inserted from the gripping portion, and is inserted into the anti-rotation portion of the first wave protection tube fixing fixture, and the rotation suppression protrusion is inserted into the groove between the anti-rotation protrusions of the second wave protection tube fixing fixture. An anti-rotation tube inserted into a groove between the anti-rotation protrusions of the protective tube fixing member to prevent rotation of the first waveform protective tube fixing tool and the second waveform protective tube fixing tool; One end of the circular tube is bent inwardly to form a stepped to reach the outer end of the pushed jaw of the anti-rotation tube, the thread is formed in the inner diameter is inserted over the anti-rotation tube to engage with the thread of the first wave protection tube fixture to move back and forth An external fixing pipe that pushes the anti-rotation tube and pushes the second wave protection tube fixture to the first wave protection tube fixture; A putty applied to and sealed at the contact end of the first wave protection tube fixture and the first wave protection tube, and applied to and sealed at the contact end of the second wave protection tube fixture and the second wave protection tube; Characterized in that the inclined surface is formed on both sides of the end of the anti-rotation protrusion of the first wave protection tube fixture, the inclined surface is formed on both sides of the gripping side end portion on the anti-rotation projection of the second wave protection tube fixture, anti-rotation tube The inclined surface is formed on both sides of the end of the rotation inhibiting projection of the first wave protection tube fixing sphere provides a wave protection tube connection fastener of the wire for the apartment house, characterized in that it is easy to enter the groove of the second wave protection tube fixture.

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

The terms or words used in the present specification and claims should not be interpreted as being limited to the ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain the invention of their own. Based on the principle, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

According to the present invention, when the two corrugated protective tubes in which the wires 1 are stored are referred to as the first waveform protective tube 10 and the second waveform protective tube 11, the connecting portions 12 are in close contact with each other. It is to prevent the water penetrating into the corrugated protection tube, the first wave protection tube fixture 20, the second wave protection tube fixture 40, O-ring 50, the anti-rotation tube 60, the external fixing tube 70, The first wave protection tube 10 is inserted into and fixed to the first wave protection tube fixture 20, and the second wave protection tube 11 is inserted into and fixed to the second wave protection tube fixture 40. Prevention tube 60 is fixed to the first wave protection tube fixture 20 and the second wave protection tube fixture 40 so as not to rotate with each other, the outer fixing tube 70 is pushed while pushing the anti-rotation tube 60 from the rear. It is characterized in that the watertight compression between the first wave protection tube fixture 20 and the second wave protection tube fixture 40.

The first wave protection tube fixture 20 is formed with a gripping portion 24 at one end of the body in which the hollow portion 21 penetrates back and forth therein, and a spiral groove from the gripping portion 24 to the hollow portion 21. 22 is formed so that the end of the first wave protection tube 10 is inserted and fixed. The grip portion 24 is formed along the circumference of the body in the longitudinal direction for easy holding and turning by hand.

Hereinafter, for convenience of description, the grip portion 24 side of the first wave protection tube fixing fixture 20 is defined as the front side, and the opposite side is defined as the rear side. In addition, in the two wave protection tubes, the front one is defined as the first waveform protection tube 10 and the rear one is defined as the second waveform protection tube 11.

At the end of the spiral groove 22 in the hollow portion 21, an insertion circular hole 23 having a diameter larger than the inner diameter where the spiral groove 22 is formed is formed, and a protrusion 27 is formed at the center of the body to the outside. The thread 25 is formed in the outer diameter. The gripper 24 is gripped and turned while the corrugated protective tube 10 is inserted into the first corrugated protective tube fixture 20 so that the end portion of the first corrugated protective tube 10 is positioned in the insertion circular hole 23.

Rotation prevention portion 26 having an outer diameter smaller than the protrusion 27 is formed at the other end of the body, and a plurality of longitudinal rotation prevention projections 29 toward the rear along the outer circumference of the rotation prevention portion 26 are fixed. Formed at intervals. Between the anti-rotation portion 26 and the protrusion 27 is formed step 28 due to the difference in outer diameter.

The holding part 49 is formed at one end of the body in which the hollow part 41 is formed therein, and the spiral groove 22 is formed in the entire inner diameter of the hollow part 41 so that the second wave protection tube 11 is inserted and fixed. do.

The second wave protection tube 11 is inserted while rotating along the spiral groove 22 in the direction in which the grip portion 49 is formed, that is, from the rear to the front side. The spiral protrusion of the second wave protection tube 11 is engaged, and the second wave protection tube fixing tool 40 is coupled while moving backward.

The insertion part 42 is formed at the opposite end, that is, the front end, of the second wave protection tube fitting 40, and the O-ring groove 43 is formed along the outer diameter of the insertion part 42 to insert the O-ring 50.

The insertion part 42 is inserted into the insertion circular hole 23 of the first wave protection tube stopper 20 and is formed to protrude from the rotation prevention part 45 along the outer circumference at the center of the body of the second wave protection tube stopper 40. do.

The anti-rotation part 45 has a plurality of anti-rotation protrusions 46 in the longitudinal direction formed at regular intervals along the circumference of the outer diameter of the protruding portion. The grooves 48 between the anti-rotation protrusions 46 are formed to penetrate back and forth and are alternately formed with the anti-rotation protrusions 46 around the anti-rotation portion 45.

The O-ring 50 is inserted into the O-ring groove 43 of the second wave protection tube fitting 40 to seal the insertion circular hole 23 and the insertion portion 42.

The anti-rotation tube 60 is configured to prevent rotation of the first wave protection tube fixing fixture 20 and the second wave protection tube fixing fixture 40, and the pressing jaw of which one end of the circular tube 61 is bent inwardly ( 62 is formed to contact the anti-rotation portion 45 of the second wave protection tube fixture 40 is pushed forward in accordance with the progress of the outer fixing tube (70).

A plurality of rotation inhibiting projections 63 are formed in the longitudinal direction at regular intervals around the inner diameter of the circular tube 61, the anti-rotation tube 60 is fitted over the second wave protection tube fixing hole 40, but the holding portion 49 From) The anti-rotation tube 60 is inserted into the anti-rotation portion 26 of the first wave protection tube fixing tool 20, and the rotation inhibiting protrusion 63 is disposed between the anti-rotation protrusions 46 of the second wave protection tube fixing tool 40. The first waveguide tube fitting 20 and the second waveguide tube fitting 40 are inserted into the groove 31 between the anti-rotation protrusions 29 of the first waveguide tube fitting 20 at the same time. To prevent it. At this time, in the groove 65 formed between the rotation inhibiting projection 63, the anti-rotation protrusion 46 of the second wave protection tube fixing hole 40 and the anti-rotation protrusion 29 of the first wave protection tube fixing hole 20 are inserted at the same time. do.

The outer fixing pipe 70 is screwed with the first wave protection tube fixing tool 20, and pushes the anti-rotation tube 60 forward in accordance with the degree of screwing to close the connection of the wave protection tube.

The outer fixing pipe 70 is formed with a stepped jaw 74 in which a circumference of one end of the circular pipe 71 is bent inwardly, and comes into contact with the outer end of the pressing jaw 62 of the anti-rotation pipe 60 according to the degree of tightening of the thread. Pushed forward. That is, the thread 72 is formed in the inner diameter of the outer fixing tube 70 and is fitted over the anti-rotation tube 60 to engage the screw thread 25 of the first wave protection tube fixing tool 20 and push the anti-rotation tube 60 while moving back and forth. The second waveform protective tube fixture 40 is pushed into the first waveform protective tube fixture 20 to compress. A grip portion 73 is formed around the outer surface of the circular tube 71 to facilitate turning by hand.

For the watertightness of the corrugated protective tube, a putty 80 is applied to the contact end of the first waveform protective tube fixing member 20 and the first waveform protective tube 10 to seal the second waveform protective tube fixing member 40 and the second waveform protective tube. Putty 80 is applied and sealed at the contact end of (11).

In order for the rotation inhibiting projection 63 to enter the grooves 31 and 48 between the rotation preventing projections 29 and 46, both ends of the rotation preventing projection 29 of the first wave protection tube fixing tool 20 are provided. The inclined surface 30 is formed, and the inclined surface 47 is formed on both sides of the grip portion 49 side end portion in the anti-rotation protrusion 46 of the second wave protection tube fixing device 40.

And the inclined surface 64 is formed on both sides of the end of the rotation inhibiting projection (63) of the anti-rotation tube 60, the groove 31 of the first wave protection tube fixture 20 and the grooves of the second wave protection tube fixture 40 ( 48) it is easy to enter.

As described above, when the spiral corrugated protective tube is combined, when the external fixing tube is rotated, the anti-rotation tube compresses the first waveform protective tube fixing tool and the second waveform protective tube fixing tool to the end of the first waveform protective tube and the second waveform protective tube. There is an effect that comes close. In addition, since the rotation is restricted by the anti-rotation tube, the first waveform protective tube fixing tool and the second waveform protective tube fixing tool have the effect of preventing the waveform protective tube from rotating and separating.

The connection part is located in the insertion circular hole, the connection part is sealed by the O-ring has the effect that the water flowing from the outside can not penetrate inside.

Claims (2)

The holding part 24 is formed at one end of the body in which the hollow part 21 is formed, and the spiral groove 22 is formed in the hollow part 21 to insert and fix the end of the first wave protection tube 10. In the end of the helical groove 22, a wide diameter insertion circular hole 23 is formed, and a protruding portion 27 is formed at the center of the body to the outside so that the thread 25 is formed at the outer diameter thereof, and the other end of the body is formed. The first wave shape is formed in the rotation preventing portion 26 of the outer diameter smaller than the protrusion 27, the plurality of anti-rotation projections 29 in the longitudinal direction along the outer surface of the rotation preventing portion 26 at regular intervals Protective tube fixing (20); The holding part 49 is formed at one side end of the body in which the hollow part 41 is formed, and the spiral groove 44 is formed in the whole inner diameter of the hollow part 41 so that the second wave protection tube 11 is inserted and fixed. The second wave protection tube 11 is inserted along the helical groove 44 from where the gripping portion 49 is formed, and the O-ring groove 43 is formed along the outer circumference of the insertion portion 42 at the opposite end. The insertion part 42 is inserted into the insertion circular hole 23 of the first wave protection tube fixture 20, protrudes along the outer diameter circumference at the center of the body to form a rotation preventing portion 45, the rotation preventing portion 45 A second wave protection tube fixing tool 40 having a plurality of anti-rotation protrusions 46 formed in a predetermined distance along a circumference of the outer diameter; An O-ring 50 inserted into the O-ring groove 43 of the second wave protection tube fixing tool 40 to seal the insertion circular hole 23 and the insertion part 42; One end of the round tube 61 is formed with a pressing jaw 62 bent inwardly to contact the rotation preventing portion 45 of the second wave protection tube stopper 40, and around the inner diameter of the circular tube 61 A plurality of rotation inhibiting projections 63 are formed in the longitudinal direction at regular intervals, and are fitted over the second wave protection tube fixing fixture 40, but are fitted from the gripping portion 49, and the rotation of the first wave protection tube fixing tool 20 is prevented. It is inserted into the portion 26, the rotation inhibiting projection 63 is inserted into the groove 48 between the anti-rotation projections 46 of the second wave protection tube fixture 40 and at the same time the rotation of the first wave protection tube fixture 20 An anti-rotation tube 60 inserted into a groove 31 between the prevention protrusions 29 to prevent rotation of the first waveform protection tube fixing tool 20 and the second waveform protection tube fixing tool 40; A stepped portion 74 is formed in which a circumference around one side of the circular tube 71 in which the grip portion 73 is formed is bent inward to reach an outer end of the pressing jaw 62 of the anti-rotation tube 60. The thread 72 is formed in the inner diameter of the circular tube 71 and the anti-rotation tube 60 is engaged with the thread 25 of the first wave protection tube fixing tool 20 while moving back and forth while being fitted over the anti-rotation tube 60. An external fixing pipe 70 for pushing and pushing the second waveform protective tube fixing tool 40 to the first waveform protective tube fixing tool 20; A putty applied to and sealed at the contact end of the first wave protection tube stopper 20 and the first wave protection tube 10, and applied to and sealed at the contact end of the second wave protection tube stopper 40 and the second wave protection tube 11. 80; Waveform protection tube connection fasteners for electric wires for apartment houses, characterized in that consisting of. According to claim 1, wherein the inclined surface 30 is formed on both sides of the end of the anti-rotation protrusion 29 of the first wave protection tube fixture 20, the wave is formed in the anti-rotation protrusion 46 of the second wave protection tube fixture 40 The inclined surface 47 is formed at both ends of the branch 49 side, and the inclined surface 64 is formed at both ends of the rotation inhibiting projection 63 of the anti-rotation tube 60 to form the groove of the first wave protective tube fixing tool 20. (31) and the corrugated protective tube connecting fastener of the wire for the apartment house, characterized in that easy entry into the groove (48) of the second corrugated protective tube fixing (40).

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