KR101681150B1 - Protective cover - Google Patents

Abstract

The present invention relates to an arc tube. A rib tube according to an embodiment of the present invention is a rib tube for protecting a wire to be fastened to a dropper wire through a dropper clamp. The rib tube has an upper body formed with a hollow portion into which a wire is inserted, And a dropper clamp installed on the hook line is inserted through the lower body to be received in the upper body and the lower body.
According to an aspect of the present invention, since the arc tube is manufactured from rubber or silicone material having good elasticity, it can be deformed so as to accommodate the dropper clamp installed on the wire, It is possible to minimize the occurrence of cracks such as cracks or the like caused by vibration or dropping foreign substances, thereby improving durability.

Description

Protective cover {Protective cover}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an arc tube, and more particularly, to a arc tube which is formed of a material having good elasticity and can be accommodated therein with a dropper clamp installed therein.

As a means of supplying electric power to the tram that runs on the electric railway line, facilities are installed by overhead lines. Since a messenger wire that serves as a carriage cable is installed on the upper part and a contact wire which contacts with the pantograph of the train is to be installed on the lower part, A wire or a member having a rigid body nature is required. In the dropper method, a metal clamp is fixed to a wire and a wire, and a flexible cable is used therebetween. In the hanger method, a non-flexible rigid type member such as a wire is used. With a clamp on the catenary, but lay it over the tie.

In Korea, the Air Railway Accident Investigation Committee recommends replacing the pressure dropper as a countermeasure for the accidental disconnection caused by the separation of the protection cover of Kyungwon Line hanger on Aug. 19, 2005. Therefore, the hanger system is not used in the AC electric railway section. Currently, the dropper line used in the dropper system is installed at intervals of 5m in the wide railway section and 10m in the industrial railway section, and an improvement work is underway to replace the currently installed hanger by the dropper method.

On the other hand, when a foreign object falls into a wire line and a ground fault occurs, there is a problem that electric power supply to the electric cable is interrupted due to wire breakage and wire breakage accident, which hinders the operation of the electric car. Therefore, an insulating protection tube was installed to protect the wire from contact with various structures and to protect the wire from falling objects.

However, since the conventional insulation tube is formed to have an internal size equal to the cross-sectional size of the wire, it can not be installed while accommodating the dropper clamp installed on the wire. Therefore, the dropper clamp was installed on the outer surface of the insulation tube with the insulation tube covered on the outer surface of the wire. However, in such a case, due to the vibration generated during the operation of the trolley and the weight of the dropper clamp, the joint portion of the insulation tube was turned upside down so that the water could penetrate. This water is not removed to the outside, and it has a problem of corroding the copper-clad joint.

In addition, the insulating tube is formed of a weakly stretchable polyethylene material, and cracks such as cracks are generated due to vibration or dropping foreign materials generated during operation of the tank, and the tube can not be used for a long period of time.

Therefore, a drop tube clamp which is formed of a material having good stretchability and installed on the tug line can be accommodated therein, and a durability-improved arc tube is required.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a drop pipe clamp which can be accommodated inside a drop pipe by manufacturing an arc tube made of rubber or silicone material having good elasticity, And a damping tube with improved durability.

The technical problem of the present invention is not limited to those mentioned above, and another technical problem which is not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an arc tube for protecting a damper line connected to a dropper line through a dropper clamp, the damper tube having a hollow portion into which the wire is inserted, And a lower body extending from the lower end of the upper body so as to face each other and being formed as a pair, wherein the dropper clamp installed on the lower side of the lower body is inserted through the lower body, And is housed inside.

Further, a pair of fastening holes are formed at intervals along the longitudinal direction of the lower body, and fastening members are coupled to the pair of fastening holes through the fastening holes.

In this case, the fastening member is inserted into the pair of fastening holes, and the fastening portions are formed at both ends so as to be caught by the outer surface of the lower body.

The upper body is characterized in that a plurality of tight projections are formed along the longitudinal direction on the inner circumferential surface.

Meanwhile, the arc tube is made of rubber or silicon.

Further, at the other end of the upper body and the lower body, coupling grooves are formed along the longitudinal direction of the upper body and the lower body so that one end of the upper body and the lower body can be inserted.

The details of other embodiments are included in the detailed description and drawings.

According to an aspect of the present invention, since the arc tube is manufactured from rubber or silicone material having good elasticity, it can be deformed so as to accommodate the dropper clamp installed on the wire, It is possible to minimize the occurrence of cracks such as cracks or the like caused by vibration or dropping foreign substances, thereby improving durability.

According to another aspect of the present invention, there is provided an arc tube according to the present invention, wherein an engaging groove is formed along the longitudinal direction at the other end of the upper body and the lower body, and one end of the upper body and the lower body of the other arc tube are inserted into the engaging groove , It is possible to connect a plurality of protection pipes without a separate connection device, thereby facilitating work and saving time and money.

In addition, according to the arc tube according to the embodiment of the present invention, since the plurality of tight projections formed on the upper body are closely attached to the outer surface of the hook line, the detachment of the hook and the dropper clamp is prevented to improve the insulation, .

In addition, according to the arc tube according to an embodiment of the present invention, the fastening members having the fastening portions formed at both ends thereof are coupled through a pair of fastening holes formed in the lower body, so that the installation work is simple, And can be discharged to the lower part without being fixed.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is an exploded perspective view showing a structure of a protection tube according to an embodiment of the present invention.
Fig. 2 is a perspective view showing an assembled state of the arc tube of Fig. 1. Fig.
3 is a plan view showing an assembled state of the arc tube of FIG.
4 is a cross-sectional view showing the structure of line A-A 'in Fig.
5 is a cross-sectional view showing the structure of line B-B 'in Fig.
Fig. 6 is a bottom view showing a state before the plurality of arc tubes are connected to each other in the arc tube of Fig. 1;
FIG. 7 is a bottom view showing a state after a plurality of arc tubes are connected to each other in the arc tube of FIG. 1. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

In the following description of the embodiments of the present invention, descriptions of techniques which are well known in the technical field of the present invention and are not directly related to the present invention will be omitted. This is for the sake of clarity of the present invention without omitting the unnecessary explanation.

For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated. Also, the size of each component does not entirely reflect the actual size. In the drawings, the same or corresponding components are denoted by the same reference numerals.

Hereinafter, the present invention will be described with reference to the drawings for explaining an arc tube according to embodiments of the present invention.

FIG. 1 is an exploded perspective view showing a structure of a protection tube according to an embodiment of the present invention, FIG. 2 is a perspective view showing an assembled state of the protection tube of FIG. 1, FIG. 4 is a cross-sectional view showing the structure of line A-A 'in FIG. 3, and FIG. 5 is a cross-sectional view showing the structure of line B-B' of FIG.

1 and 2, the electric wire 10 is a wire for supplying electric power to a train (not shown), and the wire 20 is connected to the electric wire 10 at the same height In order to maintain the same. The catenary line (10) and the tie line (20) can be connected by a dropper line (30). The dropper clamp 40 may be fixedly mounted on the catenary line 10 and the hook line 20. The dropper line 30 may be connected to both the catenary line 10 and the tie line 20 through the dropper clamp 40, . In this way, a clamping type fixture is fixedly installed on a wire and a wire, and a cable connection therebetween is called a dropper. Here, the arc tube 1 is installed so as to surround the tug 20, and can protect the tug 20.

The arc tube 1 according to an embodiment of the present invention may include an upper body 100 and a lower body 200.

In the upper body 100, a hollow portion 110 into which the wire 20 is inserted may be formed and the lower center may be opened. Also, the upper body 100 may have a plurality of contact protrusions 120 formed along the longitudinal direction on the inner circumferential surface thereof. The plurality of contact protrusions 120 are formed so as to be in close contact with the outer surface of at least one of the tangent line 20 and the dropper clamp 40 so as to prevent the deviation of the tie line 20 and the dropper clamp 40 received in the hollow portion 110 . The present invention is not limited to this, and the shape, the number, and the arrangement of the plurality of contact protrusions 120 may be different from each other, Etc. can be changed by a person skilled in the art.

The lower body 200 may extend from the lower end of the upper body 100 to face each other and may be formed as a pair. Further, a pair of coupling holes 210 formed in the pair of lower bodies 200 may be spaced along the longitudinal direction of the lower body 200.

The upper body 100 and the lower body 200 may be made of rubber or silicone. The rubber or silicone material is more flexible than the polyethylene material that was conventionally used as a vent pipe. Therefore, the arc tube 1 can be deformed so as to be accommodated in the dropper clamp 40 installed in the wire 20 as well as the wire 20.

1 to 4, the dropper clamp 40 installed on the wire bundle 20 and the wire bundle 20 is inserted into the arc tube 1 through the lower body 200 and is inserted into the upper body 100 and the lower body 200, And can be accommodated inside the body 200. 4, the dropper clamp 40 may be configured to include a latch 41, a staple 42, a bolt 43, and a nut 44, as shown in FIG. 4, have. The bolt insertion holes may be formed on both sides of the brace 41 and the claws 42, respectively. The bolt 43 can be inserted into the bolt insertion hole so that the claw 42 is inserted and fixed to the inside of the latch 41. [ The nut 44 is coupled to the other end of the bolt 43 to fix the bolt 43. 1 and 2, the dropper line 30 can be connected to the cage 41 of the dropper clamp 40 provided on the catenary line 10 and the tie line 20, respectively.

The fastening member 220 and the dropper clamp 40 are received in the upper body 100 and the lower body 200 and then the fastening member 220 can be coupled through the pair of fastening holes 210. [ 5, when the fastening member 220 is inserted into the pair of fastening holes 210, the fastening member 220 is fastened to the outer surface of each of the pair of lower bodies 200, A latching portion 221 may be formed at both ends. One end 221a of the latching part 221 is circular and the other end 221b is inclined so that the width becomes narrower toward the outer side so that insertion and fixing can be facilitated. The shape of the portion 221 and the like can be changed by a person skilled in the art. 2 and 3, the fastening member 220 formed with the fastening part 221 is inserted into the pair of fastening holes 210 and inserted into the pair of lower bodies 200 ) Can be fixedly coupled.

Hereinafter, the connection structure of the arc tube 1 according to the embodiment of the present invention will be described with reference to FIGS. 6 and 7. FIG.

FIG. 6 is a bottom view showing a state before a plurality of arc tubes are connected in the arc tube of FIG. 1, and FIG. 7 is a bottom view showing a state after a plurality of arc tubes are connected to each other in the arc tube of FIG.

As shown in FIG. 6, the coupling groove H may be formed at the other end of the upper body 100 and the lower body 200. At this time, the coupling groove H may be formed along the longitudinal direction at the other end of the upper body 100 and the lower body 200 so that one end of the other upper body 100 'and the lower body 200' can be inserted .

7, after one end of the upper body 100 'and the lower body 200' are inserted into the coupling groove H, the coupling member 220 is coupled to the lower body 200 ' And a pair of fastening holes 210 'formed in the lower body 200' and the fastening holes 210 of the lower body 200 '.

Therefore, when the plurality of arc tubes 1 are connected to each other along the joint line 20, only one end of the arc tube can be inserted into the coupling groove without the need of a separate coupling device and then the coupling member 220 can be connected The work can be facilitated and the time and cost can be saved.

As described above, in the case of the arc tube according to an embodiment of the present invention, the arc tube can be deformed so as to accommodate the dropper clamp installed on the tie bar as well as the tie bar by manufacturing the arc tube with rubber or silicone material having good elasticity, The durability can be improved by minimizing the occurrence of cracks such as cracks or the like caused by vibration or dropping foreign substances generated during operation of the tram. Further, it is possible to connect the plurality of arc tubes without forming a separate connecting device by forming the coupling groove in the longitudinal direction at the other end of the upper body and the lower body, and inserting the upper body and the lower body of the other arc tube into the coupling groove. This makes it easier to work and saves time and money. In addition, since a plurality of tight projections formed on the upper body are provided in close contact with the outer surface of the hook line, detachment of the hook line and the dropper clamp can be prevented, and insulation can be improved. Further, the fastening members having the fastening portions formed at both ends are coupled through a pair of fastening holes formed in the lower body, so that the installation work is simple and even if the water seeps, the fastening member can be discharged to the lower portion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And is not intended to limit the scope of the invention. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

Description of the Related Art
1:
10: Line 20: Line
30: Dropper line 40: Dropper clamp
41: Chuck 42: Chuck
43: bolt 44: nut
100: upper body 110: hollow
120: plurality of contact protrusions 200: lower body
210: a pair of fastening holes 220: fastening member

Claims (6)

A damper tube for protecting a damper line fastened to a dropper line through a dropper clamp,
An upper body formed with a hollow portion into which the tab line is inserted and opened at a lower center; And
And a lower body extending from the lower end of the upper body so as to face each other,
Wherein the upper body and the lower body are made of rubber or silicon,
The dropper clamp installed on the first wire and the second wire is inserted through the lower body and received in the upper body and the lower body,
Wherein the upper body and the lower body are formed with coupling grooves along the longitudinal direction of the upper body and the lower body so that one end of the upper body and the lower body can be inserted and connected,
Wherein a plurality of the arc-tightening pipes are connected to each other by the engagement grooves along the tightening line. The method according to claim 1,
Wherein a pair of fastening holes are formed at intervals along the longitudinal direction of the lower body, and fastening members are coupled through the pair of fastening holes. 3. The method of claim 2,
Wherein the fastening member is inserted into the pair of fastening holes, and the fastening part is formed at both ends so as to be caught by the outer surface of the lower body. The method according to claim 1,
Wherein the upper body has a plurality of tight projections formed along the longitudinal direction on the inner circumferential surface thereof. delete delete

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