KR20190136745A - Protection tube coupling device and wire assembly having the same, bindless cover having protection tube coupling portion - Google Patents

Abstract

The present invention provides a protection tube coupling device capable of easily coupling a bindless cover and a protection tube. The protection tube coupling device comprises: a cylindrical wire coupling unit formed to surround a wire; a bindless cover coupling unit extended from a lower part of the wire coupling unit to a position of surrounding one part of a bindless cover and having a coupling hole through which a bolt coupled with the bindless cover passes; and a protrusion unit formed in an opposite direction of an extension direction of the bindless cover coupling unit at the wire coupling unit and protruding in a radial direction along an outer circumferential surface of the wire coupling unit to be caught in an inlet coupling unit or a pleat unit of a protection tube by being inserted into the protection tube protecting the wire. Moreover, the present invention provides a wire facility which has the protection tube coupling device, and the bindless cover which has a structure and a function of the protection tube coupling device.

Description

PROTECTION TUBE COUPLING DEVICE AND WIRE ASSEMBLY HAVING THE SAME, BINDLESS COVER HAVING PROTECTION TUBE COUPLING PORTION}

The present invention relates to a protective tube coupling device for coupling a protective tube and a bindless cover for protecting an electric wire, an electric wire facility having the protective tube coupling device, and a bindless cover provided with a protective tube coupling structure.

The wires for transmission and distribution are supported by an insulated linepost insulator, and the bindless cover secures the linepost insulators and wires. Building protection pipes or jumper wire protection pipes are used to protect the wires. For example, Published Utility Model Publication No. 20-2016-0000168 (January 18, 2016) discloses a 45 kV class building protective tube for protecting electric wires.

In the initial installation of the wire harness, the protective tube protects the electric wire, but the bindless cover has no structure or function to be combined with the protective tube. Therefore, as the time passes after the installation of the wire harness, the protection pipe is gradually moved away from the bindless cover by the vibration of the wind or the weight of the plurality of protection pipes, thereby moving to the middle part (dip) of the wire.

If the guard tube is moved away from the bindless cover, the wire is exposed, which may cause a safety accident in an unsafe unprotected wire section. For example, there is a high risk of an accident when a worker or a metal scaffold at a nearby work site is in contact.

The present invention is to propose a protective tube coupling device that can easily bind the bindless cover and the protective tube.

The present invention is to propose a protective tube coupling device that maintains the binding state of the bindless cover and the protective tube firmly and does not arbitrarily separate, unless the bindless cover and the protective tube are artificially separated.

The present invention prevents the occurrence of unprotected sections by maintaining a firmly coupled state with the bindless cover without being pushed to the middle part (dip) of the electric wire between the pole and the pole by its own weight in the construction site a number of protection pipes installed on the wire To provide a protective tube coupling device that can prevent the occurrence of safety accidents.

An object of the present invention is to provide a wire harness provided with the protective tube coupling device.

The present invention is to provide a bindless cover provided with the structure and function of the protective tube coupling device.

Protective tube coupling device according to an embodiment of the present invention in order to achieve the object of the present invention, the cylindrical wire coupling portion formed to surround the wire; A bindless cover coupling portion extending from a lower portion of the wire coupling portion to a position surrounding a portion of the bindless cover and having a coupling hole for passing a bolt coupled to the bindless cover; And formed along the outer circumferential surface of the wire coupling part so as to be caught in a concave coupling part or a pleating part of the protective pipe by being inserted in a protection pipe protecting the wire and inserted in the extension direction of the bindless cover coupling part in the wire coupling part. It includes a projection projecting in the radial direction.

According to an example related to the present invention, the inner diameter of the wire coupling part is smaller than the outer diameter of the wire protection part surrounding the wire at the outer end of the bindless cover.

According to another example related to the present invention, the bindless cover engaging portion extends in two branches to surround the bindless cover on both sides.

According to another example related to the present invention, the bindless cover coupling part may include: a first coupling part surrounding one side of the bindless cover; A second coupling part formed symmetrically with the first coupling part and surrounding the other side of the bindless cover; And a third coupling part connecting a lower end of the first coupling part and a lower end of the second coupling part.

According to another example related to the present invention, the coupling hole is symmetrically formed at a position facing each other of the first coupling portion and the second coupling portion.

According to another example related to the present invention, the protective tube coupling device is provided with a plurality of the coupling holes in different positions to be universally installed in different types of bindless cover.

According to another example related to the present invention, the protective tube coupling device includes a coupling groove formed by recessing from the upper portion to the lower portion of the bindless cover coupling portion.

According to another example related to the present invention, the protrusion part may protrude in a vertical direction from an outer circumferential surface of the wire coupling part, and a vertical protrusion that is caught in a concave coupling part or a wrinkle part of the protective tube; And an inclined portion that forms an outer diameter that gradually decreases along the direction inserted into the recess coupling portion or the pleat portion of the protective tube in the vertical protrusion.

According to another example related to the present invention, the inlet coupling portion or the pleat portion of the protective tube has a small inner diameter portion and a large inner diameter portion which are alternately arranged, the outer diameter of the vertical protrusion is larger than the inner diameter of the small inner diameter portion, the inclination The minimum outer diameter of the portion is smaller than the inner diameter of the small diameter portion.

According to another example related to the present invention, the bindless cover coupling part includes a protection tube coupling hole, and the protrusion is inserted into the protection tube to engage the inlet coupling part or the wrinkle part of the protection tube. The arc pipe coupling hole is formed at a position facing the coupling hole formed in the protective pipe.

In addition, the present invention discloses a wire harness in order to realize the above problems.

The wire harness may include an electrically insulating linepost insulator formed to support the electric wire; A bindless cover coupled to the linepost insulator to fix the linepost insulator and the wire; A protective tube surrounding the wire to protect the wire; And the protective tube coupling device formed to fix the protective tube to the bindless cover.

The bindless cover extends in two branches downward from the top of the wire to surround the wire, and the two branches have a coupling hole formed at a position facing each other below the wire, and the bolt is inserted into the coupling hole. And the two branches are coupled to each other by a nut coupled to the bolt, and the bindless cover coupling portion of the protective tube coupling device is formed to surround the two branches of the bindless cover under the wire, and the bolt and the It is coupled to the bindless cover by a nut.

According to an example related to the present invention, the coupling hole of the bindless cover and the coupling hole of the protective tube coupling device are respectively formed at positions facing each other.

In addition, the present invention discloses a bindless cover provided with the structure and function of the protective tube coupling device in order to realize the above object.

The bindless cover may include an insulator cover coupled to an insulated linepost insulator formed to support an electric wire; A wire protection part surrounding the wires on both sides of the insulator cover part to protect the wires extending from both sides of the line post insulator; And a protective pipe coupling part protruding along the extension direction of the wire from the outermost part of the wire protection part to surround the wire, wherein the protective pipe coupling part is inserted into a protective pipe protecting the wire, and the inlet coupling part of the protective pipe is connected. Or it has a projection projecting in the radial direction along the outer circumferential surface of the protective tube coupling portion to be caught in the wrinkle portion.

According to an example related to the present invention, the wire protection part extends in two directions downward from the top of the wire to surround the wire, and the two branches have a coupling hole at a position facing each other under the wire, It is coupled to each other by a bolt and a nut fastened through the coupling hole.

According to another embodiment related to the present invention, the protrusion may protrude in a vertical direction from the outer circumferential surface of the protective tube coupling portion, and a vertical protrusion that is caught in the indenting coupling portion or the wrinkle portion of the protective tube; And an inclined portion that forms an outer diameter that gradually decreases along the direction inserted into the recess coupling portion or the pleat portion of the protective tube in the vertical protrusion.

According to another embodiment related to the present invention, the inlet coupling portion or the pleated portion of the protection tube has a small inner diameter portion and a large inner diameter portion that is alternately arranged, the outer diameter of the vertical protrusion is larger than the inner diameter of the small inner diameter portion, the inclination The minimum outer diameter of the portion is smaller than the inner diameter of the small diameter portion.

According to the present invention having the above configuration, the protective tube coupling device can be easily inserted into the protective tube by the structure of the protrusion having the inclined portion. The protection pipe coupling device and the protection pipe can be combined by just injecting the protection pipe coupling device into the protection pipe. Since the protective tube coupling device is coupled to the bindless cover, the binding of the bindless cover and the protective tube can also be easily achieved.

In addition, according to the present invention, it is possible to maintain a firmly coupled state without the protective tube being arbitrarily separated from the protective tube coupling device by the configuration of the protrusion having the vertical protrusion. In addition, tighter couplings can be achieved using bolts and nuts.

In addition, according to the present invention, since the state in which the protective tube is coupled to the protective tube coupling device is permanently maintained, it is possible to prevent the occurrence of the phenomenon in which the protective tube is pushed to an intermediate portion (dip) of the wire.

In addition, according to the protection pipe coupling device and the wire installation proposed in the present invention can prevent the occurrence of the unprotected section of the wire, the occurrence of a safety accident can be prevented.

In addition, by using the bindless cover provided with the structure and function of the protective tube coupling device, it is possible to firmly couple the protective tube to the bindless cover without separately manufacturing the protective tube coupling device.

1 is a perspective view of a protective tube coupling device proposed in the present invention.
2 to 6 are conceptual views sequentially illustrating a process of coupling the protective tube coupling device to the bindless cover, and then the protective tube to the protective tube coupling device.
7 is a front view of the bindless cover proposed in the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, the protection pipe coupling apparatus which concerns on this invention, the electric wire installation provided with the said protection pipe coupling apparatus, and the bindless cover provided with the protection pipe coupling function are demonstrated in detail with reference to drawings.

In the present specification, different embodiments are given the same or similar reference numerals for the same or similar components, and the description is replaced with the first description.

When a component is said to be "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may be present in the middle. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise.

1 is a perspective view of a protective tube coupling device 100 proposed in the present invention.

The protective tube coupling device 100 is a device for coupling and fixing the protective tube to the bindless cover. The protective tube coupling device 100 may be composed of one member. Protective tube coupling device 100 is formed of an electrically insulating material.

Hereinafter, the protection pipe coupling device 100 will be described by dividing the wire coupling portion 110, the bindless cover coupling portion 120, and the protrusion 130.

The wire coupling part 110 is formed in a cylindrical shape to surround the wire. When the wire is passed through the hollow of the wire coupling portion 110 during the initial installation of the protective tube coupling device 100, the wire coupling portion 110 is wrapped around the wire to protect the wire.

The bindless cover coupling portion 120 extends from the lower portion of the wire coupling portion 110 to a position surrounding any portion of the bindless cover. The bindless cover coupling part 120 has a structure protruding to one side from the lower portion of the wire coupling part 110. The one side is a direction in which the bindless cover is disposed.

Coupling holes 121a, 121b, 122a, and 122b are formed in the bindless cover coupling part 120. The two branches of the bindless cover, which will be described later, are joined to each other by bolts and nuts to be coupled to the linepost insulator. The coupling holes 121a, 121b, 122a, and 122b of the bindless cover coupling part 120 are intended to be coupled to the bindless cover by the bolts and nuts that are provided.

The bindless cover coupling part 120 extends into two branches 121 and 122 to surround the bindless cover on both sides. One of the two branches 121 and 122 is called a first coupling part 121, and the first coupling part 121 surrounds one side of the bindless cover. The other one of the two branches 121 and 122 is called the second coupling portion 122, and the second coupling portion 122 surrounds the other side of the bindless cover. The first coupling part 121 and the second coupling part 122 have symmetrical shapes with each other.

The third coupling part 123 of the bindless cover coupling part 120 connects the lower end of the first coupling part 121 and the lower end of the second coupling part 122. The third coupling part 123 surrounds the lower portion of the bindless cover. The bindless cover is protected by the protective tube coupling device 100 on one side, the other side, and the lower side by the first coupling part 121, the second coupling part 122, and the third coupling part 123.

The bindless cover coupling portion 120 is coupled to the bindless cover by a bolt and a nut that couples the two branches of the bindless cover. Coupling holes 121a, 121b, 122a, and 122b of the bindless cover coupling part 120 are symmetrically formed at positions where the first coupling part 121 and the second coupling part 122 face each other.

When the bolt is inserted into the coupling hole 121a or 121b of the first coupling part 121, the bolt is a coupling hole formed in two branches of the coupling hole 121a or 121b of the first coupling part 121 and the bindless cover, respectively. Then, it passes sequentially through the coupling holes 122a or 122b of the second coupling portion 122. When the nut is coupled to the bolt exposed by the coupling hole 122a or 122b of the second coupling portion 122, the protection tube coupling device 100 is coupled to the bindless cover.

The coupling holes 121a, 121b, 122a, and 122b of the protective tube coupling device 100 are formed in plural in the bindless cover coupling part 120. Each coupling hole 121a, 121b, 122a, 122b is further provided at another position. Accordingly, the protective tube coupling device 100 may be installed universally on different kinds of bindless covers.

The coupling grooves 121c and 122c may be formed in the protection pipe coupling device 100 for universal installation. Coupling grooves 121c and 122c are recessed and formed from the upper portion of the bindless cover coupling portion 120 toward the lower portion. Since the protective tube coupling device 100 surrounds the lower portion of the bindless cover, the coupling grooves 121c and 122c should be recessed and formed toward the lower portion from the upper portion of the bindless cover coupling portion 120. The coupling grooves 121c and 122c are the same as the coupling holes 121a, 121b, 122a and 122b in that they differ only in shape and position from the coupling holes 121a, 121b, 122a and 122b, but are configured for coupling bolts and nuts. Do.

The protrusion 130 protrudes in the radial direction along the outer circumferential surface of the wire coupling part 110. The protrusion 130 is formed on the opposite side of the extension direction of the bindless cover at the wire coupling portion 110. If the bindless cover coupling portion 120 protrudes in one direction of the wire coupling portion 110, the protrusion 130 is formed at the other side of the wire coupling portion 110. The protrusion 130 may be formed at the other end of the wire coupler 110.

The protrusion 130 is inserted into the protection tube to protect the electric wire is caught in the inlet coupling portion or the wrinkle portion of the protection tube. The small diameter part and the large diameter part are formed in the urinary engagement part or wrinkle part of a protective tube. The small internal diameter refers to the portion having a smaller internal diameter than the large internal diameter, and on the contrary, the small internal diameter refers to the portion having a relatively large internal diameter compared to the small internal diameter. Protrusion 130 is inserted into the protective tube is located in the inner diameter portion, and caught in the portion connecting the small inner diameter and large inner diameter is not separated arbitrarily.

The protrusion 130 includes a vertical protrusion 131 and an inclined portion 132. Hereinafter, the vertical protrusion 131 and the inclined portion 132 will be described sequentially.

The vertical protrusion 131 protrudes in the vertical direction from the outer circumferential surface of the wire coupling part 110. When the protective tube coupling device 100 is inserted into the protective tube, the vertical protrusion 131 is caught in the portion connecting the small diameter and the large diameter in the urinary coupling or pleat. The protection tube coupling device 100 may not be arbitrarily separated from the protection tube by the vertical protrusion 131.

The inclined portion 132 forms an outer diameter of which the outer diameter gradually decreases along the direction inserted into the recess coupling portion or the pleat portion of the protective tube in the vertical protrusion 131. By the inclined portion 132, the protective tube coupling device 100 can be easily inserted into the protective tube.

If there is no coupling mechanism other than the protrusion 130 when the protection pipe coupling device 100 is inserted into the protection pipe, it is difficult to completely exclude the possibility that the protection pipe coupling device 100 and the protection pipe are arbitrarily separated. In order to prevent this, the bindless cover coupling part 120 may further include a protective pipe coupling hole 121d.

When the protruding portion 130 is inserted into the protective tube and engaged with the inlet coupling portion or the pleated portion of the protective tube, the protective tube coupling hole 121d is formed at a position facing the coupling hole formed in the protective tube. When the bolt and the nut are coupled to each other through the protective tube coupling hole 121d and the coupling hole formed in the protective tube, the protective tube coupling device 100 and the protective tube may be firmly coupled to each other.

Hereinafter, a process of installing the protection pipe coupling device 100 will be described.

2 to 6 are conceptual views sequentially illustrating a process of coupling the protective pipe coupling device 1300 to the bindless cover 1200, and then the coupling of the protective pipe 1400 to the protective pipe coupling device 1300. .

In the present invention, the wire facility 1000 is a concept including a line post insulator 1100, a wire C, a bindless cover 1200, a protective pipe 1400, and a protective pipe coupling device 1300.

The line post insulator 1100 is formed to support the wire C. The line post insulator 1100 has electrical insulation. In the line post insulator 1100, the external diameter portion and the marginal diameter portion are formed repeatedly and alternately in the vertical direction.

The bindless cover 1200 is coupled to the linepost insulator 1100 to fix the linepost insulator 1100 and the wire C to each other. The bindless cover 1200 includes an insulator cover part 1210 and wire protection parts 1221 and 1222.

The insulator cover part 1210 is coupled to an upper end of the line post insulator 1100. The insulator cover part 1210 may extend in two directions from an upper end of the linepost insulator 1100, and is coupled to the linepost insulator 1100 by fastening parts 1231 and 1232. The fastening parts 1231 and 1232 mean bolts and nuts.

The wire protection parts 1221 and 1222 are formed at both sides of the insulator cover part 1210 to protect the wires C extending from both sides of the line post insulator 1100. The wire protection units 1221 and 1222 surround the wire C. As shown in FIG. The wire protection parts 1221 and 1222 may extend in two branches 1221b and 1222b from the top of the wire C to the bottom.

In the two branches 1221b and 1222b of the wire protection units 1221 and 1222, coupling holes are formed at positions facing each other under the wire C. The fastening parts 1221c and 1222c are coupled through the coupling holes of the wire protection parts 1221 and 1222. Here, the fastening parts 1221c and 1222c refer to bolts and nuts coupled to the bolts. The engagement position of the bolt and nut can be formed in several places.

The outer ends 1221a and 1222a of the wire protection units 1221 and 1222 may have a larger outer diameter than other portions of the wire protection units 1221 and 1222. The wire coupling part 1310 of the protection pipe coupling device 1300 has an outer diameter smaller than the outer ends 1221a and 1222a of the wire protection parts 1221 and 1222. Therefore, when the protective tube coupling device 1300 is coupled to the wire (C) and then closely attached to the bindless cover 1200, the movement of the protective tube coupling device 1300 is performed at the outer ends of the wire protection units 1221 and 1222 ( 1221a, 1222a). Accordingly, the position of the protective tube coupling device 1300 is determined by the outer ends 1221a and 1222a of the wire protection units 1221 and 1222.

When the wire C is coupled to the line post insulator 1100 and the bindless cover 1200 is coupled to the line post insulator 1100 to protect the wire C, the protective pipe coupling device 1300 Ready to install.

Referring to FIG. 2, the wire C connected to the line post insulator 1100 is passed through the wire coupling part 1310 of the protection pipe coupling device 1300 to install the protection pipe coupling device 1300. Then, the protective tube coupling device 1300 is approached to the bindless cover 1200. The protective pipe coupling device 1300 is installed on both sides of the bindless cover 1200, respectively.

When the protective tube coupling device 1300 is brought into close contact with the bindless cover 1200, the coupling hole of the bindless cover 1200 is covered by the fastening part in the drawing and the coupling hole 1321 of the protective pipe coupling device 1300. 1322 is placed in a position facing each other.

Reference numeral 1331 not described in FIG. 2 denotes a vertical protrusion, and 1332 denotes an inclined portion.

3 and 4, the protective pipe coupling device 1300 and 2300 are coupled to the bindless cover 1200 and 2200 using bolts and nuts. As described above, the protection pipe coupling device 1300 and 2300 of the present invention have versatility. The difference between the bindless cover 1200 and 2200 illustrated in FIG. 3 and the bindless cover 1200 and 2200 illustrated in FIG. 4 is the wire protection units 1221 and 1222 of the bindless cover 1200 and 2200. 2222 and 2222 are joined by bolts and nuts at different positions.

The bindless cover coupling parts 1320 and 2320 of the protective tube coupling device 1300 and 2300 are formed to surround two branches of the bindless cover 1200 and 2200 under the wire C. Loosen the bolts and nuts that couple the wire protection parts 1221, 1222, 2221, and 2222 of the bindless cover 1200, 2200, and the coupling hole of the bindless cover 1200, 2200 with the bindless cover. When the bolt is inserted at one side of the coupling holes 1321 and 2322 of the parts 1320 and 2320 and the nut is coupled to the bolt at the opposite side, the protective pipe coupling device 1300 and 2300 and the bindless cover 1200 are provided. 2200 is combined.

Coupling grooves 1323 and 2323 formed in the bindless cover coupling parts 1320 and 2320 also function substantially the same as the coupling holes 1321 and 1322 and 2321 and 2322.

In FIG. 4, reference numeral 2000 denotes a wire harness, 2100 denotes a line post insulator, 2210 denotes an insulator cover portion, 2221a and 2221b denote an outer end of the wire protector, and 2221a and 2222b denote two branches under the wire protector, 2222c and 2231. 2232 denotes a fastening portion, 2310 denotes a wire coupling portion, 2321 and 2322 coupling holes, 2323 coupling grooves, 2324 protection tube coupling holes, 2330 projections, 2331 vertical projections, 2332 indicates the inclined portion.

The description of these components is replaced by the previous description.

5, the protective tube 1400 is coupled to the wire C, and the protective tube 1400 is approached by the protective tube coupling device 1300. Protective tube 1400 wraps the wire (C) to protect the wire (C). The protective tube 1400 is a concept including a protective tube for building or jumper wire protective tube. 5 shows a building protection tube.

Building protective pipe is provided with a urine coupling portion 1420 at the outer end. The urine inlet coupling portion 1420 has a structure in which a large internal diameter portion is formed between two small internal diameter portions.

The jumper wire protection tube has a pleat. The pleats have a structure in which the small and large internal parts are alternately and repeatedly formed. Although the jumper wire protective tube is not shown, any one may have any wrinkles that can protect the jumper wire.

The inlet coupling portion 1420 of the building protection tube and the pleats of the jumper wire protection tube have a common structure in that they have a different structure, but have a part to which the protrusion 1330 can be inserted.

Finally, referring to FIG. 6, the protrusion 1330 is press-fitted into the protective tube 1400 so as to be caught in the pleated portion of the inlet coupling part 1420 or the jumper wire protective tube of the protective tube for construction. The inclined portion 1332 of the protrusion 1330 has a minimum outer diameter smaller than the small diameter portion of the concave inlet coupling portion 1420 or the wrinkle portion. Therefore, the protrusion 1330 can be easily inserted into the protective tube 1400.

The vertical protrusion 1331 of the protrusion 1330 has an outer diameter larger than the small diameter portion 1410 of the recess coupling portion 1420 or the wrinkle portion. Therefore, the protrusion 1330 may be coupled to the pleated portion of the inlet coupling portion 1420 or jumper wire protective tube of the building protective tube 1400.

When the protrusion 1330 is caught by the inlet coupling portion 1420 or the pleat portion, the protective tube 1400 is not arbitrarily separated from the protective tube coupling device 1300. In addition, by coupling the bolt and the nut to the coupling hole 1430 of the protective pipe 1400 and the protective pipe coupling hole 1324 of the protective pipe coupling device 1300, the protective pipe 1400 and the protective pipe coupling device 1300 Can be combined more firmly.

Hereinafter, the bindless cover 1200 having the structure and function of the protective tube coupling device 1300 will be described so that the protective tube coupling device 1300 does not need to be separately installed.

7 is a front view of the bindless cover 3200 proposed in the present invention. The bindless cover is provided with the structure and function of the protective tube coupling device.

The bindless cover 3200 includes an insulator cover part 3210, an electric wire protection part 3220, a protective pipe coupling part 3230, and a protrusion 3240. The bindless cover 3200 may be formed of a single member. The bindless cover 3200 is formed of an electrically insulating material.

A lower portion of the insulator cover 3210 is provided with a fastening portion 3211 for coupling the bindless cover 3200 to the linepost insulator 3100, and the insulator cover portion 3210 and the wire protection portion 3220. The description of the above is replaced with the above description.

The protective tube coupling part 3230 protrudes along the extension direction of the electric wire at the outermost part of the electric wire protection part 3220. The protective tube coupling portion 3230 may be formed in a cylindrical shape to surround the electric wire. Passing the electric wire through the hollow of the protective tube coupling portion 3230 is protected by the protective tube coupling portion 3230.

The protrusion 3240 protrudes in the radial direction along the outer circumferential surface of the protective tube coupling portion 3230. Protrusion 3240 is formed on the outer end of the protective tube coupling portion 3230.

Projection portion 3240 is inserted into the protective tube to protect the electric wire is caught in the inlet coupling portion or the wrinkle portion of the protective tube. Projection portion 3240 is inserted into the protective tube is located in the inner diameter portion of the protective tube, it is caught in the portion connecting the small diameter portion and the inner diameter portion of the protective tube is not separated arbitrarily.

The protrusion 3240 includes a vertical protrusion 3241 and an inclined portion 3322.

The vertical protrusion part 3241 protrudes in the vertical direction from the outer circumferential surface of the protective tube coupling part 3230. When the protective tube coupling portion 3230 is inserted into the protective tube, the vertical projections 3321 are caught by the portion connecting the small and large diameter portions at the urinary coupling portion or the pleat portion. By the vertical projections 3241, the bindless cover 3200 may not be arbitrarily separated from the protection tube.

The inclined portion 3422 forms an outer diameter whose outer diameter gradually decreases along the direction inserted into the indentation coupling portion or the pleat portion of the protective tube in the vertical protrusion portion 3251. By the inclined portion 3322, the bindless cover 3200 can be easily inserted into the protective tube.

The inclined portion 3422 of the protrusion 3240 has a minimum outer diameter smaller than the small inner diameter of the concave engaging portion or the pleated portion. Therefore, the protrusion 3240 can be easily inserted into the protective tube. The vertical protrusion 3241 of the protrusion 3240 has an outer diameter larger than the small inner diameter of the indentation coupling portion or the wrinkle portion. Therefore, the protrusion part 3240 may be coupled to the pleated portion of the inlet coupling portion or jumper wire protection tube of the building protection tube.

When the protective tube is press-fitted into the bindless cover 3200, the protrusion 3240 is inserted into the protective tube and caught in the urine inlet coupling portion or the wrinkle portion. Accordingly, the bindless cover 3200 and the protection tube are not separated arbitrarily.

A coupling part 3221 and a coupling hole 3222 corresponding to the coupling hole of the protection tube may be formed below the wire protection part 3220. The coupling part 3221 protrudes below the wire protection part 3220, and the coupling hole 3222 is formed in the coupling part 3221.

When the protrusion part 3240 is caught by the inlet coupling part or the wrinkle part of the protection tube, the coupling hole 3322 is disposed at a position facing the coupling hole of the protection tube. When the fastening part consisting of a bolt and a nut is fastened to the coupling hole 3222, the protection tube and the bindless cover 3200 are firmly coupled.

The protection pipe coupling device described above, the wire harness provided with the protection pipe coupling device, the bindless cover provided with the protection pipe coupling function is not limited to the configuration and method of the embodiments described above, the embodiments All or part of each of the embodiments may be selectively combined to enable various modifications.

Claims (17)

Cylindrical wire coupling portion formed to surround the wire;
A bindless cover coupling portion extending from a lower portion of the wire coupling portion to a position surrounding a portion of the bindless cover and having a coupling hole for passing a bolt coupled to the bindless cover; And
The wire coupling part is formed on the opposite side of the extension direction of the bindless cover coupling part, and is inserted into the protection tube for protecting the wire and radiates along the outer circumferential surface of the wire coupling part so as to be caught in the indentation coupling part or the wrinkle part of the protection tube. Protective tube coupling device comprising a projection projecting in the direction. The method of claim 1,
The inner diameter of the wire coupling portion is a protective tube coupling device, characterized in that smaller than the outer diameter of the wire protection portion surrounding the wire at the outer end of the bindless cover. The method of claim 1,
The bindless cover coupling portion extends in two branches to surround the bindless cover on both sides. The method of claim 1,
The bindless cover coupling portion,
A first coupling part surrounding one side of the bindless cover;
A second coupling part formed symmetrically with the first coupling part and surrounding the other side of the bindless cover; And
And a third coupling part connecting a lower end of the first coupling part and a lower end of the second coupling part. The method of claim 4, wherein
And the coupling hole is symmetrically formed at a position facing each other of the first coupling portion and the second coupling portion. The method of claim 1,
The protective pipe coupling device is a protective pipe coupling device characterized in that it comprises a plurality of the coupling holes in different positions so as to be universally installed in different types of bindless cover. The method of claim 1,
The protective pipe coupling device is a protective pipe coupling device characterized in that it has a coupling groove formed recessed from the upper portion to the lower portion of the bindless cover coupling portion. The method of claim 1,
The protrusion is,
A vertical protrusion projecting in a vertical direction from an outer circumferential surface of the wire coupling portion and caught in a concave coupling portion or a pleat portion of the protective tube; And
And an inclined portion forming an outer diameter that gradually decreases along the direction inserted into the concave coupling portion or the pleat portion of the protective tube in the vertical protrusion. The method of claim 8,
The urinary inlet coupling portion or the pleat portion of the protective tube has a small internal diameter portion and a large internal diameter portion alternately arranged,
The outer diameter of the vertical projection portion is larger than the inner diameter of the small diameter portion, the minimum outer diameter of the inclined portion is smaller than the inner diameter of the small diameter portion of the protective tube coupling device. The method of claim 1,
The bindless cover coupling portion has a protective tube coupling hole,
When the protrusion is inserted into the protective tube is engaged with the inlet coupling portion or the pleated portion of the protective tube, the protective tube coupling hole is formed in a position facing the coupling hole formed in the protective tube Arc tube coupling device. An electrically insulating linepost insulator formed to support the electric wire;
A bindless cover coupled to the linepost insulator to fix the linepost insulator and the wire;
A protective tube surrounding the wire to protect the wire; And
An electric wire installation comprising the protection pipe coupling device according to any one of claims 1 to 10, which is formed to fix the protection pipe to the bindless cover. The method of claim 11,
The bindless cover extends bifurcated downward from the top of the wire to surround the wire,
The two branches are formed with a coupling hole in a position facing each other under the wire,
The two branches are coupled to each other by a bolt inserted into the coupling hole and a nut coupled to the bolt.
The bindless cover engaging portion of the protective pipe coupling device is formed to surround two branches of the bindless cover under the wire, and is connected to the bindless cover by the bolt and the nut. The method of claim 12,
The coupling hole of the bindless cover and the coupling hole of the protective tube coupling device are each formed in a position facing each other. An insulator cover portion coupled to an insulated linepost insulator formed to support an electric wire;
A wire protection part surrounding the wires on both sides of the insulator cover part to protect the wires extending from both sides of the line post insulator; And
A protective pipe coupling part protruding along the extension direction of the wire from the outermost part of the wire protection part to surround the wire,
The protective pipe coupling portion is provided with a protrusion projecting in a radial direction along the outer circumferential surface of the protective pipe coupling portion to be inserted into the protective tube to protect the electric wire is caught in the concave coupling portion or the wrinkle portion of the protective tube Lease cover. The method of claim 14,
The wire protector extends in two directions from the top of the wire downward to surround the wire,
The two branches are provided with a coupling hole in a position facing each other under the wire, the bindless cover, characterized in that coupled to each other by a bolt and nut fastened through the coupling hole. The method of claim 14,
The protrusion is,
A vertical protrusion projecting in a vertical direction from an outer circumferential surface of the protective tube coupling portion and caught in a concave coupling portion or a pleat portion of the protective tube; And
A binderless cover, characterized in that it comprises an inclined portion to form an outer diameter gradually decreases in the direction inserted into the concave coupling portion or the pleated portion of the protective tube in the vertical protrusion. The method of claim 16,
The urinary inlet coupling portion or the pleat portion of the protective tube has a small internal diameter portion and a large internal diameter portion alternately arranged,
The outer diameter of the vertical projection is greater than the inner diameter of the small diameter portion, the minimum outer diameter of the inclined portion is the bindless cover, characterized in that smaller than the inner diameter of the small diameter portion.

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