KR101686013B1

KR101686013B1 - Fixing Device of Plate Made of Other Materials of Multijunction Sleeve for Connecting Distribution Line

Info

Publication number: KR101686013B1
Application number: KR1020160010233A
Authority: KR
Inventors: 박동철
Original assignee: 이재필
Priority date: 2016-01-27
Filing date: 2016-01-27
Publication date: 2016-12-13

Abstract

The present invention relates to a fixing device of a plate made of a different material of a multijunction sleeve for connecting to a distribution line, wherein a main line and a branching line are connected to a distribution line. The circumferential surface of the main line can be enveloped and fixed stably without distorting the plate made of a different material when the main line is compressed and fixed to a main line mounting groove of the multijunction sleeve as the structure of the multijunction sleeve is improved. For the purpose, the fixing device of a plate made of a different material of a multijunction sleeve for connecting to a distribution line according to the present invention compresses and fixes a first connection part (101) with a plate made of a different material (110) placed on the first connection part (101) formed on the multijunction sleeve (100), and compresses and fixed a branching line to a second connection part. The first connection part (101) formed on the multijunction sleeve (100) is formed as a single curved surface and a hanging groove (102) is formed at the entrance of the first connection part (101). A folding piece (111) is formed on the plate made of a different material (110) to be hung and supported on the hanging groove (102) and the length of the plate made of a different material (110) is set to maintain a predetermined gap from the end of the first connection part (101) having a free end (112) formed on the multijunction sleeve (100).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fixing device for fixing a diaphragm of a branching sleeve for connection to a distribution line,

The present invention relates to a branch sleeve for connecting a main line and a branch line in a distribution line, and more particularly, to a branch sleeve for improving the structure of a branch sleeve and pressing and fixing a main line to a main line attachment groove of a branch sleeve, Which is capable of stably wrapping and fixing the circumferential surface of the main wire without being distorted.

Generally, when power is supplied, an extraordinary high voltage of 22.9 kV is supplied as a distribution voltage to the pillar transformer in the electricity supply site, and then converted to a low voltage of 220 V and 380 V in the pillar type pillar transformer. .

When separating the line from the main line of this distribution line or providing power from the main line to the pillar transformer, the branch sleeve of aluminum is used to connect the line of the main line to the branch line. In the branch sleeve which connects the main line and the branch line, A separate cover is placed to prevent various adverse influences from the outside such as damage caused by rainwater or algae, and the branch portion is insulated.

Fig. 1 is a longitudinal sectional view showing a state in which a conventional working distribution line is installed on a pole. Fig. 2 is a longitudinal sectional view enlargedly showing a state in which a branch sleeve is installed in Fig. 1. The pole 10 is provided with a main line 11, A switch 13, a pillar-shaped transformer 4 and various types of insulators are provided in the pillar transformer 14. The power distributed through the main line 11 is supplied to the pillar transformer 14 via the cut- The poultice transformer 14 supplies power to the electricity receiver 12 at home or industry by lowering the power supplied at a special high voltage to the usable rated voltage (220 V, 380 V) and supplying the power line 12 through the cut line 15.

In this configuration, the main wire 11 is fixed to both clamp covers 16 provided on the electric pole 10, and a branch wire 17 (not shown) is provided on the main wire 11 where tension is not applied between the pair of clamp covers 16. [ Is branched by the branch sleeve 20 and supplied with electric power to the cut-out switch 13, and the branch sleeve cover 30 is installed outside the branch sleeve 20.

That is, the branch sleeve 20 is enclosed by the branch sleeve cover 30 as shown in FIG. 2 to prevent rainwater from impregnating it, while insulating the branch sleeve 20 from electric shock, (31) is formed in a conical shape at both ends with an inner space in which the main body (20) can be placed, and the main line (11) And a plurality of fasteners 32 made of fastening tabs and fastening pieces on both sides of the lower end portion.

In this conventional branch sleeve 20, the covering of the main wire 11 is removed and the divided lower end portion of the branch sleeve cover 30 is opened in a state where the branch line 17 is connected to place the branch sleeve 20 inside The main wire 11 on both sides is pulled out of the outflow port 31 and then the branch line 17 is pulled out by one outflow port 31 and is coupled through several fasteners 32, 31) is sealed with a separate taping operation so that rainwater can not permeate, while insulation is prevented to prevent electric shock.

FIG. 3 is a perspective view showing a conventional conventional branch sleeve. FIG. 4 is a perspective view of the branch sleeve in a state where the main line and the branch line are crimped and fixed. The branch sleeve 20 has, at its upper portion, And a branch-line-side mounting groove 22 is formed in a lower portion.

The main line 11 is fixed in the pressed state to the main line side mounting groove 21 of the branch sleeve 20 and the branch line 17 is fixed to the branch line side mounting groove 22 to be branched.

However, in order to connect a conventional aluminum wire (branch wire) and a copper wire (main wire), a branch sleeve 20 for an aluminum wire having an arc-shaped mounting portion on the upper and lower sides is used.

However, in such a general branch sleeve 20, aluminum and copper are connected to each other in a heterogeneous manner, and the copper wire is not completely adhered to the branch sleeve 20, so that moisture, moisture or foreign matter penetrates into the interface therebetween, Low aluminum is dissolved and corroded to increase the contact resistance, accelerating the electrolytic corrosion due to the rise in the temperature of the connecting portion, and forming an oxide film, thereby causing contact failure and causing a problem of burnout.

Therefore, a new type of branch sleeve has been developed to solve the above-mentioned problems and has been registered as a Utility Model No. 470445 (connection structure of a branch sleeve for wiring line connection).

Fig. 5 is an exploded perspective view showing a new type of branch sleeve. Fig. 6 is a perspective view showing the use state of Fig. 5, in which one side of the branch sleeve 20, to which the main line 11 is connected, And a second connecting portion 22 having one side to which the branch line 17 is connected is cut open and formed in a round groove shape on both sides of the upper and lower sides of the first connecting portion 21, The mounting groove 21a into which the medium 40 is inserted is formed in a curved shape like the intermediate medium.

The intermediate medium 40 is inserted into the mounting groove 21a formed in the first connecting portion 21 and then the main wire 11 is peeled off from the inner circumferential surface of the intermediate medium 40, The main wire 11 is fixed to the first connecting portion 21 when the first connecting portion 21 is pressed by the pressing device.

Thereafter, the branching line 17, which is a lead wire for grounding such as a voltage branching line or a transformer, is grounded along the inner circumferential surface of the second connecting portion 22 by a predetermined length in a state of being stripped off, By pressing using a compactor, the operation is completed.

(Prior art document)

(Patent Document 0001) Registered Utility Model Registration No. 20-470445 (Registered on December 10, 2013)

However, in such a conventional branch sleeve, when the intermediate medium is inserted into the mounting groove formed in the first connecting portion and the connecting portion for fixing the main line is pressed, the inner peripheral surface of the intermediate medium is compressed while the outer peripheral surface (connecting surface with the mounting groove) However, since the width of the mounting groove is constant, the inner circumferential surface of the intermediate medium is distorted even if the intermediate medium is not separated from the mounting groove.

First, the inner circumferential surface of the intermediate medium is not tightly connected to the outer circumferential surface of the main line and a gap is generated, so that a frequency is generated as well as heat is generated.

Second, noise is generated due to corrosion due to poor contact with the intermediate medium located in the mounting groove of the branch sleeve.

Third, there is a structure in which an intermediate medium is forcedly fitted into a mounting groove formed in the first connecting portion. However, there is a limit to precisely machining the intermediate medium to be inserted tightly in the mounting groove, The intermediate medium is easily detached from the mounting groove in the process of performing the pressing operation in a state where the main line is positioned at the connection portion, so that the working efficiency is lowered.

DISCLOSURE OF THE INVENTION It is an object of the present invention to solve the problems of the prior art, and it is an object of the present invention to improve the structure of a branch sleeve and a heterogeneous plate (intermediate medium) dramatically, So that the surface can be closely connected to the inner circumferential surface of the heterogeneous plate.

Another object of the present invention is to make the end of the heterogeneous plate coincide with the outer circumferential surface of the branch sleeve after the main shaft is positioned and fixed to the inner circumferential surface of the heterogeneous plate.

According to an aspect of the present invention for achieving the above object, there is provided a branching sleeve for connecting a distribution line to a branching sleeve for crimping and fixing a first connecting portion in a state where a heterogeneous plate is positioned on a first connecting portion formed on a branching sleeve, Wherein a first connecting portion formed on the branch sleeve is formed into a single curved surface and an engaging groove is formed in an inlet of the first connecting portion, and a bending piece held in the engaging groove is formed in the heterogeneous plate And the length of the heterogeneous plate is set so that the free end thereof is kept at a predetermined distance from the end of the first connection portion formed in the branch sleeve.

The present invention is characterized in that the first connecting portion formed on the branch sleeve is formed as a single curved surface and the bent piece formed on the heterogeneous plate is fitted and fixed in the holding groove formed at the entrance of the first connecting portion, The free end of the heterogeneous plate is stretched and moved by the amount of the compressed portion even if the inner circumferential surface of the heterogeneous plate is compressed when the first connecting portion is compressed after the main line is brought into close contact with the heterogeneous plate. This prevents the collapse phenomenon in advance.

Further, since the bent piece, which is one end of the heterogeneous plate, is forcibly fitted and fixed in the engaging groove formed in the first connecting portion of the branch sleeve, the heterogeneous plate is prevented from being detached from the first connecting portion of the branch sleeve when the first connecting portion is press- .

1 shows a state in which a conventional working distribution line is installed on a pole
Fig. 2 is a longitudinal sectional view enlargedly showing a state in which the branch sleeve is installed in Fig. 1
3 is a perspective view showing a conventional conventional branch sleeve;
Fig. 4 is a perspective view showing a state in which a main line and a branch line are fixed by press-
5 is an exploded perspective view showing a new type of branch sleeve;
Fig. 6 is a perspective view showing the use state of Fig. 5
7 is an exploded perspective view showing the present invention.
8 is a perspective view of the engaging state of Fig. 7,
Fig. 9 is a longitudinal sectional view in a state in which the main line is crimped and fixed to the branch sleeve of the present invention

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures are exaggerated or reduced in size for clarity and convenience in the figures, and any dimensions are merely illustrative and not restrictive. And to the same structure, element or component appearing in more than one drawing, the same reference numerals are used to denote similar features.

FIG. 7 is an exploded perspective view showing the present invention, FIG. 8 is a perspective view of the coupled state of FIG. 7, and FIG. 9 is a longitudinal sectional view of a branch sleeve of the present invention, Unlike the conventional branch sleeve, the first connecting portion 101 is formed as a single curved surface as a whole, and a locking groove 102 is formed at the entrance of the first connecting portion 101.

A bending part 111 is formed on the dendritic plate 110 fixed to the first connection part 101 and is hooked on the latching groove 102. The free end 112 of the heterogeneous plate 110 is connected to a branch The length of the heterogeneous plate 110 is set such that a predetermined distance from the end of the first connection part 101 formed in the sleeve 100 is set so that the bending piece 111 of the heterogeneous plate 110 is connected to the first connection part 101 The free end 112 of the heterogeneous plate 110 maintains a predetermined gap with the outer circumferential surface of the branch sleeve 100 as shown in FIG.

The length of the free end 112 of the heterogeneous plate 110 and the distance of the end of the first connection part 101 may be adjusted by bending the diaphragm 110 and fixing the main wire 11 to the branch sleeve 100, It is more preferable to set it so as to coincide with the outer peripheral surface.

Hereinafter, the operation of the present invention will be described.

First, a hooking groove 102 is formed at the entrance of the first connecting part 101 formed in a single curved surface, and the bending piece 111 of the heterogeneous plate 110 is forcibly inserted into the hooking groove 102, It is possible to prevent the heterogeneous plate 110 from being separated from the first connecting portion 101 of the branch sleeve 100 during handling and storage.

In this state, the spiral portion of the main wire is positioned on the inner circumferential surface of the heterogeneous plate 110 for pressing and fixing the main wire (not shown) to the first connection portion 101, and the first connection portion 101 is compressed The fixing work of the main line is completed because the heterogeneous plate 110 is squeezed without moving in the branch sleeve.

That is, when the first connecting portion 101 of the branch sleeve is compressed by using the pressing device, the bent piece 111, which is one end of the heterogeneous plate 110, is fixed to the engaging groove 102 so that its position is not variable. As the free end 112 is not fixed, even if the inner circumferential surface of the heterogeneous plate 110 is stretched due to compression, it moves along the end of the first connection part 101 and is not distorted. Respectively.

As a result, it is possible to prevent the heterogeneous plate from being collapsed like a conventional branch sleeve, so that there is no occurrence of overheat or corrosion phenomenon between the main line and the heterogeneous plate.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention may be embodied with various changes and modifications without departing from the scope of the invention. will be.

It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive, the scope of the invention being described in the foregoing specification is defined by the appended claims, Ranges and equivalents thereof are to be construed as being included within the scope of the present invention.

100: branch sleeve 101: first connection
102: latching groove 110: heterogeneous plate
111: Bending piece

Claims

A first connecting portion 101 is pressed and fixed in a state in which the heterogeneous plate 110 is positioned on the first connecting portion 101 formed on the branch sleeve 100 and the branching sleeve for connecting to the distribution line is fixed to the second connecting portion by press- The first connection part 101 formed in the branch sleeve 100 is formed into a single curved surface and the coupling groove 102 is formed at the entrance of the first connection part 101, And the length of the heterogeneous plate 110 is set such that the free end 112 is connected to the first connection part 101 formed in the branching sleeve 100 Of the branching sleeve is set so as to be maintained at a predetermined distance from the end of the branching sleeve.

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