KR101289778B1 - Coupler for cable protection pipe - Google Patents

Abstract

PURPOSE: A cable protection connector is provided to completely seal the connection portion of cable protection pipes, thereby completely blocking the inflow of water and foreign material. CONSTITUTION: A first division body (12) and a second division body (14) include coupling protrusions to be coupled with the spiral grooves (1a,2a) of first and second protection pipes (1,2). A sealing means maintains airtight between the protection pipes and the first and second division bodies. The sealing means includes a first seal (30) and a second seal (20) which include spiral accommodating portions. The inner surfaces of first and second seals are adhered to the outer surfaces of the first and second protection pipes. The coupling means couples the first division body and the second division body each other.

Description

Cable Protection Pipe Ends {Coupler for Cable Protection Pipe}

The present invention relates to a cable sheath connector, and more particularly, to a cable sheath connector used to connect a cable sheath protecting a cable for communication and power housed therein.

When embedding telecommunication and power cables in the basement, embed a large diameter protective tube in the basement and insert the cable directly into the protective tube or insert a plurality of small diameter receiving tubes inside the protective tube, The method of accommodating cables in a tube is used.

In this case, a synthetic resin such as polyvinyl chloride or polyethylene is mainly used as the protective tube, and a spiral groove is formed on the outer surface thereof. The helical groove can bend the deflection of the protective tube to be free to change the course.

On the other hand, in the case where the buried deformable protective pipe is rapidly changed in the buried route, it should be piped in a state of being cut to a predetermined length, and then the cut portion must be connected again.

At this time, in the process of connecting the cutting part, the connection part becomes vulnerable or foreign matter such as moisture or dust should not be introduced through the connection part. When foreign matter such as moisture or dust is introduced through the connection part or the connection part is damaged, a problem occurs that the communication and power cables are damaged.

In order to solve this problem, the present inventor has proposed a cable protection tube connector of Utility Model Registration No. 20-0274262.

As shown in FIGS. 1 and 2, the cable sheath connector is configured to connect the first sheath 1 and the second sheath 2 to each other, and the first sheath 1 and the second sheath. It has a body 10 surrounding the outer surface of the protective tube (2).

The body 10 is divided into a first split body 12 having a semicircular cross section and a second split body 14 having a semicircular cross section. The first split body 12 and the second split body 14 are configured to surround the connecting portion of the first protective tube 1 and the second protective tube 2 which face each other while facing each other.

On the other hand, the engaging projection which can be coupled to the helical grooves (1a, 2a) of the first protective tube (1) and the second protective tube (2) around the inner surface of each of the first divided body 12 and the second divided body (14) 12a and 14a are formed.

The coupling protrusions 12a and 14a serve to increase the coupling force between the first split body 12 and the second split body 14 with respect to the first protective tube 1 and the second protective tube 2.

In addition, flanges 12b and 14b are formed at the upper and lower contact ends of the first divided body 12 and the second divided body 14 along the longitudinal direction, respectively.

The flanges 12b and 14b are fastened by fastening means such as bolts and nuts to couple the first split body 12 and the second split body 14 to each other, and thus the first protective tube 1 and the second split body 14 are coupled to each other. The protective tube (2) to be firmly connected to each other.

On the other hand, the first split body 12 and the second split body 14 is usually composed of a hard synthetic resin material excellent in electrical insulation and strength.

In addition, the above-described protective tube connector is provided with a sealing means for maintaining the airtight between the first protective tube (1) and the second protective tube (2) and the body (10).

The sealing means includes a first seal 30 (Seal) disposed between the first split body 12 and the first and second protective tubes 1 and 2, and the second split body 14; It consists of the 2nd seal | sticker 20 arrange | positioned between the 1st and 2nd protective pipes 1 and 2. As shown in FIG.

In addition, the first seal 30 and the second seal 20 are disposed on both sides of the first split body 12 and the second split body 14 so as to be open to each other so that the first protective tube 1 and the second protective tube ( 2) upper and lower seals sealing between the first sealing parts 22 and 32 and the flanges 12b and 14b of the first split body 12 and the second split body 14, both of which seal between the two sealing parts. It consists of two sealing parts 24 and 34.

The first seal 30 and the second seal 20 may include a first split body 12, first and second protective tubes 1 and 2, a second split body 14, and first and second bodies. Sealing between the protective tubes (1, 2) prevents foreign matter from penetrating into the interior of the first and second protective tubes (1, 2).

Here, the first seal 30 and the second seal 20, EPDM (Ethylene-Propylene-Diene Monomer) synthesis excellent in insulation, heat resistance, oxidation resistance, strong resistance to polar materials and excellent chargeability It is composed of rubber.

Accordingly, as shown in FIG. 2, the first protective tube 1 and the second protective tube 2 are faced to each other, and the first split through the first seal 30 and the second seal 20. When the flanges 12b and 14b of the body 12 and the second divided body 14 are fastened by the fastening means, the assembling of the protective tube connection part is completed.

According to the cable sheath connector, the first sheath 1 and the second sheath 2 are wrapped around the first split body 12 and the second split body 14 having the engaging projections 12a and 14a. By fastening it with the fastening means, the first protective tube 1 and the second protective tube 2 can be more firmly connected.

However, the cable protective tube connector of the above structure, there is a problem that the sealing is difficult to be perfect because the center portion of the first seal 30 and the second seal 20 is open structure.

In addition, since the shape of the first seal 30 and the second seal 20 is not a structure corresponding to the outer shape of the protective tube having a spiral groove, there is a problem that it is difficult to completely seal and may be detached from the protective tube during installation.

In addition, the conventional protective tube connector, there is a problem that it is difficult to completely seal the flange (12b, 14b) portion to which the first split body 12 and the second split body 14 are assembled.

The present invention proposes to solve the problems of the prior art as described above, the object of the present invention is to provide a cable protection tube connector that can completely block the inlet of the cable protection tube connection to prevent the inflow of moisture or foreign matter.

Another object of the present invention is to provide a cable sheath connector that allows the seal to completely surround the cable sheath and prevents the seal from leaving the sheath during installation.

Another object of the present invention to improve the structure of the flange assembly of the protective tube connector to provide a cable protective tube connector that can fundamentally block the inflow of moisture or foreign matter into the flange assembly.

The present invention for achieving the above object is provided with a coupling projection that can be coupled to the spiral groove of the protective tube for protecting the cable or the receiving tube, the semi-cylindrical agent is assembled while wrapping the two protective tube connecting parts facing each other A split body and a second split body; Sealing means for maintaining airtightness between the protective tube and the first split body and the second split body to prevent moisture or foreign matter from entering the connection part of the protective tube; And a fastening means for fastening the first split body and the second split body to each other such that the first split body and the second split body are tightly fixed at the connection portion of the protective tube. A cable sheath connector for connecting two sheaths to be received, wherein the sealing means includes a first cylindrical seal and a second sheath made of a semi-cylindrical rubber material having a spiral receiving portion corresponding to the spiral groove of the sheath. The inner surfaces of the first seal and the second seal are characterized in that the close contact with the outer surface of the protective tube during assembly.

In addition, the first seal and the second seal of the rubber material is provided with flange portions at both ends, respectively, characterized in that the inner side of the flange portion is further attached to the rubber pad of the rubber material corresponding to the outer shape of the protective tube. .

In addition, the waveform pad is characterized in that it is formed integrally with the flange portion of the first seal and the flange portion of the second seal.

In addition, protrusion pads are formed to protrude from the flange portion of the first seal and the flange portion of the second seal, respectively, and the flange of the first split body and the flange of the second split body are provided with the protrusion pads. Receiving grooves corresponding to the shape is characterized in that each is formed.

In addition, an accommodating groove is formed in each of the flange portion of the first seal and an outer portion of the flange of the second seal, and a protrusion pad is formed in each of the flange portion of the first split body and the flange portion of the second split body. It is characterized by being.

In addition, each of the outer periphery of the first seal and the second seal is formed with a spiral projection along the circumferential direction, and the guide groove into which the projection is fitted is formed inside the first split body and the second split body, respectively. It is characterized by being.

According to the present invention, it is possible to seal the connection portion of the cable protection tube completely, there is an effect that can block the ingress of moisture or foreign matter at source.

In addition, by forming the shape of the seal to correspond to the outer shape of the cable sheath, there is an effect that the seal can completely wrap the cable sheath to significantly improve the waterproof performance.

In addition, by attaching a corrugated pad having a shape corresponding to the outer shape of the cable protection tube inside the flange portion of the seal, and forming a protrusion on the outer periphery of the seal, the protrusion is inserted into the guide groove of the split body so that the seal is separated during installation. There is an effect that can be prevented.

In addition, by forming a protruding pad on the outside of the flange portion of the seal and having the protruding pad fitted into the receiving groove of the divided body, there is an effect that the flange can be completely sealed.

1 is an exploded perspective view showing the configuration of a cable protective tube connector according to the prior art,
2 is an assembled cross-sectional view of a cable sheath connector according to the prior art.
Figure 3 is an exploded perspective view showing the configuration of the cable protective tube connector according to the present invention.
Figure 4 is an exploded perspective view showing the configuration of the first seal and the second seal in the cable sheath connector according to the present invention.
5 is an assembled cross-sectional view of a cable sheath connector according to the present invention.

Best Mode for Carrying Out the Invention Preferred embodiments of the cable sheath connector according to the present invention will now be described with reference to Figs.

The cable sheath connector according to the invention is used to connect the first sheath 1 and the second sheath 2 to each other, as shown in FIG. 3.

The first protective tube 1 and the second protective tube 2 are formed on the outer surface with spiral grooves 1a and 2a along the circumferential direction. The first protective tube 1 and the second protective tube 2 are usually made of a synthetic resin material of an insulating material.

As shown in FIG. 4, the cable sheath connector according to the present invention includes a first split body 12 having a semicircular cross section that surrounds the outer surfaces of the first sheath 1 and the second sheath 2 which are opposed to each other. A second split body 14 having a semicircular cross section is provided.

The first split body 12 and the second split body 14 are assembled to face each other and are configured to surround the connecting portions of the first protective tube 1 and the second protective tube 2 which face each other.

The first split body 12 and the second split body 14 are preferably made of a hard synthetic resin material excellent in electrical insulation and strength.

In addition, between the first protective tube (1) and the second protective tube (2), the first split body 12 and the second split body (14), the first protective tube (1) and the second protective tube (2) Sealing means for sealing to prevent the inflow of moisture or foreign matter into the connection portion is provided.

The sealing means is a first seal 30 and a second seal, each of which is a semi-cylindrical rubber material having a spiral receiving portion corresponding to the spiral grooves 1a and 2a of the first protective tube 1 and the second protective tube 2. It comprises 20.

That is, the sealing means according to the present invention is configured to completely wrap the first protective tube (1) and the second protective tube (2). Accordingly, as shown in FIG. 5, the outer surfaces of the first protective tube 1 and the second protective tube 2 may be completely sealed with the first seal 30 and the second seal 20 during assembly.

In addition, the first seal 30 and the second seal 20 of a rubber material are provided with flanges 38 and 28 at both ends, respectively, and the first protective pipe 1 inside the flanges 38 and 28. ) And a corrugated pad 24 of rubber material corresponding to the outer shape of the second protective tube 2 are respectively attached.

The corrugated pad 24 may be manufactured separately and attached to the flange portions 38 and 28 of the first seal 30 and the second seal 20 with an adhesive, or the first seal 30 and the second seal. It can also be formed integrally with (20).

Thereby, the airtightness of the said 1st protective pipe 1 and the 2nd protective pipe 2, the 1st seal 30, and the 2nd seal 20 can be improved further at the time of assembly.

In addition, protruding pads 26 and 36 are formed to protrude from the flange portion 38 outside of the first seal 30 and the flange portion 28 outside of the second seal 20, respectively. Receiving grooves 18 corresponding to the shape of the protruding pads 26 and 36 are formed in the flange portion 12b of the 12 and the flange portion 14b of the second split body 14, respectively.

That is, the accommodation grooves 18 (the first split for convenience) of the protruding pads 26 and 36 of the first seal 30 and the second seal 20 and the first split body 12 and the second split body 14. The receiving groove of the body is not shown) has a shape corresponding to each other.

Accordingly, the first seal 30 and the second seal 20 and the first split body 12 and the second split body 14 may be firmly coupled to each other at the flange portion.

Although the protrusion pads 26 and 36 and the receiving grooves 18 are illustrated in FIG. 4 in a rectangular shape, the shape may be formed in a circular or other shape.

In addition, although not shown in the drawing, receiving grooves may be formed in the first seal 30 and the second seal 20 and protruding pads may be formed in the first split body 12 and the second split body 14.

That is, protrusions are formed in the flange portions of the first split body 12 and the second split body 14, and the receiving grooves are provided in the flange portions 28 and 38 of the first seal 30 and the second seal 20. The first seal 30 and the second seal 20 may be formed in a structure fitted to the flange portions of the first split body 12 and the second split body 14.

In addition, each of the outer circumferential portions of the first seal 30 and the second seal 20 is further formed with a spiral protrusion 31 along the circumferential direction, and the first split body 12 and the second split body 14. Inside of the guide grooves 15 to which the protrusions 31 are fitted are formed, respectively.

Accordingly, the coupling force between the first seal 30, the second seal 20, the first split body 12, and the second split body 14 may be further improved.

Hereinafter will be described the assembly process of the protective tube connector according to the present invention.

First, the 1st protective tube 1 and the 2nd protective tube 2 are mutually located. At this time, the cross sections of the first protective tube 1 and the second protective tube 2 are cut flat at right angles so that no gap occurs during assembly.

On the other hand, the first seal 30, the first split body 12, the second seal 20 and the second split body 14 are assembled, respectively. Since the first seal 30, the first split body 12, the second seal 20, and the second split body 14 have the same spiral groove, the first seal 30 and the first split body 12 may be easily overlapped and assembled.

At this time, the protrusions 31 formed on the outer circumferential portions of the first seal 30 and the second seal 20 are formed in the guide groove 15 formed in the first split body 12 and the second split body 14. To be fitted.

Subsequently, the protruding pads 26 and 36 formed on the flanges of the first seal 30 and the second seal 20 are inserted into the receiving grooves 18 formed in the first split body 12 and the second split body 14. . Accordingly, the first seal 30 and the second seal 20 may be firmly coupled to the first split body 12 and the second split body 14.

Subsequently, the corrugation pads 24 are attached to both inner sides of the flange portions 38 and 28 of the first seal 30 and the second seal 20, respectively. The waveform pad 24 may be formed integrally with the first seal 30 and the second seal 20.

When the assembly of the first seal 30 and the first split body 12 and the second seal 20 and the second split body 14 is completed, any one of the split bodies is connected to the protective tubes 1 and 2. Position so that the guard tube and the split body are aligned.

Subsequently, assembling two semi-cylindrical split bodies by inserting the bolt B and the nut N into the assembly hole H, the assembly of the cable connector is completed.

According to the present invention, as shown in FIG. 5, since the first seal 30 and the second seal 20 made of rubber material completely cover the first and second protective pipes 1 and 2, It can greatly improve.

In addition, as shown in FIG. 4, since the waveform pad 24 is provided between the first seal 30 and the second seal 20 and the first and second protective tubes 1 and 2, the sealing property is further improved. Is improved.

In addition, according to the present invention, the guide groove 15 formed in the first divided body 12 and the second divided body 14, the projections 31 formed on the outer peripheral surfaces of the first seal 30 and the second seal 20 At the same time, the protruding pads 36 formed on the flange portions 38 and 28 of the first seal 30 and the second seal 20 are combined with the first split body 12 and the second split body 14. It is fitted into the receiving groove 18 formed in the).

Accordingly, the connection part of the protection tube can be completely sealed, so that water or foreign substances, etc., can be blocked at the source.

The foregoing is illustrative of preferred embodiments of the present invention, and the present invention is not limited to the above embodiments. Those skilled in the art will understand that various changes and modifications can be made without departing from the scope of the technical idea of the present invention.

1: first sheriff 2: second sheriff
1a and 2a: spiral groove 12: first split body
14: second split body 12a, 14a: engaging projection
12b, 14b: flange 15: guide groove
18: Acceptance Home 20: First Seal
24: Waveform pad 26, 36: Protrusion pad
28 and 38: flange portion 30: second seal
31: protrusion

Claims (6)

delete Semi-assembly that is assembled while wrapping the two sheath connections facing each other with engaging projections that can be engaged with the helical grooves 1a and 2a of the first and second sheaths 1 and 2 protecting the cable or the accommodation tube. A cylindrical first split body 12 and a second split body 14;
Sealing to maintain airtightness between the protective tube and the first split body 12 and the second split body 14 to prevent moisture or foreign matter from entering the connection portions of the first and second protective pipes 1 and 2. Means;
Fastening means for fastening the first split body 12 and the second split body 14 to each other such that the first split body 12 and the second split body 14 are tightly fixed at the connection portion of the protective tube; In the cable protective tube connector for connecting two protective tubes for receiving a cable or a receiving tube therein, comprising:
The sealing means
And a first seal 30 and a second seal 20, each of which is a semi-cylindrical rubber material having a spiral receiving portion corresponding to the spiral grooves 1a and 2a of the first and second protective pipes 1 and 2, The inner surfaces of the first seal 30 and the second seal 20 are in close contact with the outer surfaces of the first and second protective tubes 1 and 2 during assembly.
The first seal 30 and the second seal 20 of the rubber material are provided with flange portions 38 and 28 at both ends, respectively, and inside the flange portions 38 and 28, the first and second protective pipes. Cable protective pipe connector, characterized in that the rubber pads (24) corresponding to the appearance of (1, 2) is further attached to each other. The method of claim 2,
Cable corrugated pipe connector characterized in that the corrugated pad (24) is formed integrally with the flange portion (38) of the first seal (30) and the flange portion (28) of the second seal (20). The method of claim 2,
Protruding pads 36 and 26 are formed to protrude from the flange portion 38 of the first seal 30 and the flange portion 28 of the second seal 20, respectively, and the first split body 12 is formed. Receiving grooves (18) corresponding to the shape of the protruding pads (36, 26) are formed in the flange portion (12b) and the flange portion (14b) of the second split body 14, respectively, Cable sheath connector. 5. The method of claim 4,
Receiving grooves are formed in each of the flange portion 38 outer side of the first seal 30 and the flange portion 28 outer side of the second seal 20, and the flange portion 12b of the first split body 12. And a protruding pad is formed in each of the flange portions 14b of the second split body 14, respectively. The method of claim 2,
In each of the outer circumferential portions of the first seal 30 and the second seal 20, spiral protrusions 31 are further formed along the circumferential direction of the first seal 30 and the second split body 14. Cable protective pipe connector, characterized in that the guide groove (15) is formed in each of the projection portion 31 is fitted.

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