KR102288210B1 - Isolator for protection of live branch of pole transformer for power distribution - Google Patents

Abstract

The present invention relates to an isolator for protecting a live wire branch ring of a pole transformer for power distribution, which prevents accidents. According to the present invention, the isolator comprises: a main body case formed in a cylindrical shape to wrap a connecting portion of a live wire branch ring, a branch sleeve, and a down wire, having an input cut part formed on the lower circumferential surface to allow the down wire to be discharged therethrough, and having cut-out grooves formed on both end parts; a cover member installed to protrude or insert through the cut-out grooves and closing both end parts of the main body case when inserted through the cut-out grooves; a fixing part filled with a working fluid to press and fix a main line or branch sleeve disposed inside the main body case; and an interlocking part converting a closing operation of the cover member into an expansion operation of the fixing unit and transferring the expansion operation. When the main line is inserted into the main body case through the input cut part of the main body case, the connection portion of the live wire branch ring, the branch sleeve, and the down wire are disposed inside the main body case while moving the main body case along the main line, and both end part of the main body case are closed by closing the cover member, the fixing part expands by operation of the interworking part so that the main line or branch sleeve is fixed while being pressed.

Description

Isolator for protection of live branch of pole transformer for power distribution

The present invention relates to an insulating device for protecting a live wire branch ring for a distribution pole transformer, and more particularly, by mounting a safety device for easy detachment on the outside of the live wire branch ring, stable electricity supply from the main power line can be achieved for homes and industries The safety device can be easily installed and separated without a separate fastening device, and the assembling property of the insulating device can be improved for operator convenience. It relates to an insulating device for protecting a live wire branch ring of a distribution pole transformer that can prevent foreign substances from entering the pole.

In general, in order to supply single-phase or three-phase power to homes or industries, the branch line of the pole-phase transformer is branched from the power line of the distribution line. In this case, most of the branch sleeves are used. Conventionally, such branch sleeves use a live wire branch ring to branch a branch line from a power line.

In the branch sleeve currently used, a live wire branch ring is coupled to the branch sleeve coupled to the power line on the upper part of the pole, and a primary lead wire is connected to each of the live wire branch ring and the cutout switch, and 2 to the cutout switch and the pole transformer, respectively. A secondary lead wire is connected, and power is supplied from the pole transformer.

As described above, a branch sleeve must be installed on the power line of the pole, and the branch sleeve is a high-voltage power supply even when the supply of power is cut off by removing the pole transformer due to new, extension or demolition of a building as well as the supply of power. This will remain in the flowing state.

However, since the live wire branch ring installed in the conventional branch sleeve is exposed to the outside of the branch sleeve, there is a problem of causing various safety accidents such as malfunction and electric shock due to the stacking of foreign substances.

In order to solve the above problems, a safety device for a live wire branching ring has been developed, and the safety device according to the prior art is made of synthetic resin or rubber material, surrounds the branch sleeve through the open lower part, and the outer surface and the lower inner surface are spaced apart. The support projections and the inclined surface are respectively formed, and between the outer surface and the inner surface, one or more transmission prevention grooves are formed symmetrically on both sides of the protection member, and the support projections are formed of a metal material and surround the protection member through the open lower part. The inner surface is supported by a cover, the front and rear surfaces are provided with coupling grooves at intervals, and the slide groove is symmetrically formed on the lower inner surface, and a filter medium that is inserted and mounted in the slide groove and has a coupling hole in the center part; It is divided into left and right, and includes a front and rear closing cover that is fitted with coupling protrusions protrudingly formed on the front and rear surfaces corresponding to the coupling grooves of the cover.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 10-0963319 (June 11, 2010 announcement, title of invention: pole transformer live wire branch ring safety device).

In the safety device according to the prior art, since the cover surrounding the branch sleeve is assembled and coupled by a plurality of fastening members, and the lower part of the cover is in an open state, it is difficult to reduce the time and cost required for installing the safety device, and the cover There is a problem that foreign substances can be introduced through the lower part of the

In addition, since the safety device according to the prior art requires gaps or grooves to prevent interference between the cable and the insulating device when the fastening structure is improved so that it can be assembled in a one-touch method without a separate fastening member, assembly of the insulating device is difficult. Even after completion, the live wire branch ring may be exposed to the outside, so that it is impossible to achieve complete blocking of rainwater or foreign substances, and since precise operation of the operator is required, there is a problem that the convenience of the operator cannot be promoted.

Therefore, there is a need to improve it.

The present invention enables a stable supply of electricity from the main power line to homes and industries by mounting a safety device for easy detachment to the outside of the live wire branch ring, and it is possible to easily install and separate the safety device without a separate fastening device. , it is possible to improve the assemblability of the insulation device to increase the convenience of the operator, and since the live wire branch ring is accommodated in the enclosed space after the assembly of the insulation device is completed, the live wire branch ring for distribution pole transformer can prevent the inflow of foreign substances An object of the present invention is to provide a protective insulating device.

The present invention relates to a main body case formed in a cylindrical shape so as to wrap a connecting portion of a live wire branch ring, a branch sleeve, and a down wire, an input cutout through which the down wire is discharged is formed on a lower circumferential surface, and a cutout groove is formed at both ends; a cover member installed so as to protrude or insert through the cut-out groove and close both ends of the body case when inserted through the cut-out groove; a fixing part filled with a working fluid to press and fix the main line or branch sleeve disposed inside the body case; and an interlocking part for converting and transmitting the closing operation of the cover member into the expansion operation of the fixing part, and inserting the main line into the main body case through the input cutout of the main body case, and the main body case along the main line When moving the live wire branch ring, branch sleeve, and the down wire connection part inside the main body case, and closing both ends of the body case by closing the cover member, the fixed part expands by the operation of the linkage, and the main wire Or it is characterized in that it is fixed while pressing the branch sleeve.

In addition, the upper end of the cut-out groove formed at both ends of the main body case of the present invention is provided with a hinge portion in which the cover member is rotatably installed, and the lower end of the cut-out groove is provided with a connecting rod for supporting the lower end of the cover member. characterized in that

In addition, the cover member of the present invention may include: a first cover rotatably installed on the hinge portion, provided with a horizontal surface to be seated on the connecting rod, and rotatably installed to one side of the main body case; and a first rotatably installed on the hinge portion, provided with a horizontal surface to be seated on the connecting rod, is rotatably installed on the other side of the main body case, and closes the end of the main body case when placed in contact with the first cover It includes two covers, and a passage groove through which the main line passes is formed on the contact surface of the first cover and the second cover.

In addition, the fixing part of the present invention, the first tube is installed to be accommodated in the inner wall of the main body case, is formed in a circular shape in which a portion is cut so that the main line inserted through the input cutout passes, the first tube is filled with a working fluid; and a plurality of branch tubes that protrude inward from the first tube, and are pressed and fixed while protruding toward the main line or branch sleeve when the working fluid delivered from the first tube is filled.

The insulation device for protecting a live wire branch ring for a distribution pole transformer according to the present invention is provided with a main body surrounding the connection portion of the live wire branch ring, the branch sleeve, and the down-line, and the main body surrounds the connection portion of the live wire branch ring, the branch sleeve and the down-line. Since the cover member for sealing the main body is provided after installation, it is possible to provide insulation to the part where the live wire branch ring is installed, thereby preventing safety accidents.

In addition, the insulation device for protecting the live wire branch ring of a pole transformer for distribution according to the present invention is provided with an interlocking part that converts and transmits the closing operation of the cover member into the expansion operation of the sealing unit, so that it is provided in the body case by a simple operation of closing the cover member It is possible to seal the gap between the main body cases and prevent malfunctions or safety accidents caused by the inflow of rainwater or foreign substances into the body case, and there is an advantage in that it is possible to promote the convenience of the operator.

1 is an exploded perspective view showing an insulating device for protecting a live wire branch ring of a distribution pole transformer according to an embodiment of the present invention.
2 is a perspective view showing a body case and a cover member of an insulating device for protecting a live wire branch ring of a distribution pole transformer according to an embodiment of the present invention.
3 is a perspective view illustrating a fixing part, a sealing part, and an interlocking part of an insulating device for protecting a live wire branch ring of a distribution pole transformer according to an embodiment of the present invention.
4 is a cross-sectional view showing an insulating device for protecting a live wire branch ring of a distribution pole transformer according to an embodiment of the present invention.
5 is a view showing a detachable part of an insulating device for protecting a live wire branch ring of a distribution pole transformer according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, an embodiment of an insulating device for protecting a pole-type transformer for distribution live wire branch ring according to the present invention will be described.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators.

Therefore, definitions of these terms should be made based on the content throughout this specification.

1 is an exploded perspective view showing an insulation device for protecting a distribution pole transformer live wire branch ring according to an embodiment of the present invention, and FIG. 2 is an insulation device for protecting a distribution pole transformer live wire branch ring according to an embodiment of the present invention 3 is a perspective view showing a main body case and a cover member, and FIG. 3 is a perspective view showing a fixing part, a sealing part, and an interlocking part of an insulating device for protecting a distribution pole transformer live wire branch ring according to an embodiment of the present invention.

In addition, FIG. 4 is a cross-sectional view showing an insulation device for protecting a distribution pole transformer live branch ring according to an embodiment of the present invention, and FIG. 5 is an insulation device for protecting a distribution pole transformer live wire branch ring according to an embodiment of the present invention It is a diagram showing the detachable part of the.

1 to 5, the insulation device for protecting the live wire branch ring of a distribution pole transformer according to an embodiment of the present invention is a connection portion of the live wire branch ring 1, the branch sleeve 3 and the down wire 5 The main body case 10 is formed in a cylindrical shape so as to wrap the incision, the input incision 17 through which the cut-down line 5 is discharged is formed on the lower circumferential surface, and the incision grooves 12 are formed at both ends; A cover member 30 that is installed to protrude or insert through the groove 12 and is inserted through the cut-out groove 12 to close both ends of the body case 10, and the main body disposed inside the case 10 A fixing part 50 filled with a working fluid so as to press and fix the line 7 or branch sleeve, and a linkage part that converts the closing operation of the cover member 30 into the expansion operation of the fixing part 50 and transmits it ( 70).

Therefore, the main wire 7 is inserted into the main body case 10 through the input cutout 17 of the main body case 10, and the live wire branch ring ( 1), when the branch sleeve 3 and the in-line 5 connecting portion are placed inside the body case 10, and the cover member 30 is closed to close both ends of the body case 10, the interlocking part 70 As the fixing part 50 is expanded by the operation of the main line 7 or the branch sleeve 3, it is fixed while pressing.

A hinge portion on which the cover member 30 is rotatably installed is provided at the upper end of the cut-out groove portion 12 formed at both ends of the main body case 10 of this embodiment, and the cover member 30 at the lower end of the cut-out groove portion 12. A connecting rod 14 for supporting the lower end of the body case 10 is provided, and an input incision 17 made by cutting from one end to the other end of the main body case 10 so that the main line 7 is inserted under the circumferential surface of the main body case 10. is formed

The cover member 30 of this embodiment is rotatably installed on the hinge portion, has a horizontal surface to be seated on the connecting rod 14, and is rotatably installed to one side of the main body case 10. The first cover 32 and , rotatably installed on the hinge portion, provided with a horizontal surface to be seated on the connecting rod 14, is rotatably installed on the other side of the main body case 10, and when placed in contact with the first cover 32, the main body case 10 ) and a second cover 34 for closing the end.

In addition, since a passage groove portion 36 through which the main line 7 passes is formed on the contact surface of the first cover 32 and the second cover 34 , the first cover 32 and the second cover 34 are cut out into the groove portion. (12) It is possible to maintain the state in which the main wire 7 is inserted into the body case 10 through the passage groove 36 even when both ends of the body case 10 are closed by inserting it inside.

The first cover 32 and the second cover 34 are formed in a semicircular shape so that the upper end is rotatably connected to the hinge part, and a flat horizontal surface is formed in the horizontal direction so as to be seated on the connecting rod 14 at the lower end, the first cover When the (32) and the second cover (34) are inserted into the cut-out groove (12), the horizontal plane formed at the lower end of the first cover (32) and the second cover (34) is seated on the upper surface of the connecting rod (14) and the main body. It becomes possible to close both ends of the case (10).

The fixing part 50 of this embodiment is installed to be accommodated in the inner wall of the main body case 10, and is formed in a circular shape in which a part is cut so that the main line 7 inserted through the input cutout 17 passes, The first tube 52 filled with the working fluid and the first tube 52 protrude inwardly, and when the working fluid delivered from the first tube 52 is filled, the main line 7 or the branch sleeve 3 ) and a plurality of branch tubes 54 that are fixed by pressure while protruding to the side.

Therefore, when the working fluid is filled in the first tube 52 above the set pressure, the working fluid flows into the branch tube 54 and the branch tube 54 protrudes toward the inner center of the body case 10, and consists of a plurality of All of the branch tubes 54 protrude toward the central portion of the main body case 10 and are fixed while pressing the main line 7 or the branch sleeve 3 .

The linkage part 70 of this embodiment is installed in the main body case 10 so as to protrude in the inner direction of the cut-out groove part 12, and extends from the second tube 72 and the second tube 72 filled with the working fluid. and a connecting tube 74 connected to the first tube 52 .

Therefore, when the operator proceeds with the closing operation while inserting the cover member 30 into the cutout groove 12 , the second tube 72 disposed to protrude in the incision groove 12 is pressed by the cover member 30 . While being pressed into the main body case 10, the working fluid that was filled in the second tube 72 is supplied to the first tube 52 through the connection tube 74, and the operation that was filled in the first tube 52 The fluid is pumped to the branch tube 54 side while the working fluid is expanded by the working fluid pressure fed from the second tube 72 , and the branch tube 54 protrudes toward the main line 7 or branch sleeve 3 to operate under pressure. will proceed with

Here, since the second tube 72 is formed to be relatively larger than twice as large as that of the first tube 52 , the working fluid discharged from the second tube 72 by the operation of the cover member 30 is the branch tube ( 54) can be supplied with sufficient working fluid to inflate.

In addition, since the present embodiment further includes a sealing part 80 for sealing the input incision 17 by the operation of the linkage part 70, the operation of the operator closing the cover member 30 is the linkage part 70 ), the sealing part 80 is expanded by the operation, and the input incision part 17 is closed and blocked.

The sealing part 80 of this embodiment is connected from the lower end of the first tube 52 disposed at one end of the body case 10 to the lower end of the first tube 52 disposed at the other end of the body case 10 to operate. It includes a pair of extension tubes 82 filled with a fluid.

Since it is extended, it is arranged long along the input incision 17, and since a pair of extension tubes 82 are installed so as to protrude from both ends forming the input incision 17 in the inner direction of the input incision 17, the working fluid When a pair of extension tubes 82 are filled and protrude in the inner direction of the input incision 17, the input incision 17 is closed, and the in-line 5 discharged to the outside through the input incision 17. While wrapping, the input incision 17 is sealed.

In addition, the present embodiment further includes a detachable part 90 for maintaining the closed state of the cover member 30 to be closed as described above, and the detachable part 90 of this embodiment includes the first cover 32 . A hook member 92 protruding from the, a coupling groove 94 provided in the second cover 34 so that the hook member 92 is inserted, and the coupling groove 94 are installed to protrude inwardly, and the hook member The engaging hook 96 to be engaged with the 92, the elastic member 97 for providing an elastic force for pressing the engaging hook 96 in the coupling groove portion 94 inward, and the hook while retracting the engaging hook 96 and a release portion 98 for releasing the engagement with the member 92 to release the closed state of the first cover 32 and the second cover 34 .

Therefore, when the first cover 32 and the second cover 34 are inserted into the cutout groove 12 while rotating around the hinge shaft 16 by the operator's operation, the hook member 92 is engaged with the hook 96. is inserted into the coupling groove portion 94 while pressing, and when the insertion of the hook member 92 is completed, the hook member ( 92) and the engaging hook 96 are engaged.

The release part 98 of this embodiment extends from the rear surface of the locking hook 96, and the release wire 98a extending outwardly of the second cover 34, and the release lever installed at the outer end of the release wire 98a (98c) and a guide roller 98b installed at the conversion portion of the release wire 98a whose extension direction is converted to the outside of the second cover 34, and wound so that the release wire 98a changes the direction along the circumferential surface. ) is included.

Therefore, when the main body case 10 is opened and the main body case 10 is separated from the connecting portion of the in-line 5, the operator holds the release lever 98c and pulls the release wire 98a while pulling the locking hook 96 and After releasing the engagement of the hook member 92 , the cover member 30 is opened, and the body case 10 is separated from the connecting portion of the down wire 5 .

In this way, it is possible to achieve a stable electricity supply from the main power line to homes and industries by installing a safety device for easy detachment on the outside of the live wire branch ring, and it is possible to easily install and separate the safety device without a separate fastening device, For the protection of the live wire branch ring of a distribution pole transformer, which can improve the assembly of the insulation device for the convenience of the operator, and prevent foreign substances from entering because the live wire branch ring is stored in the closed space after the assembly of the insulation device is completed Insulation can be provided.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible therefrom by those of ordinary skill in the art. will understand

In addition, although the insulation device for protecting the pole-phase transformer live branch loop for distribution has been described as an example, this is only an example, and the insulation device of the present invention can be used for products other than the insulation device for protecting the pole-phase transformer live branch loop for distribution.

Therefore, the true technical protection scope of the present invention should be defined by the following claims.

10: body case 30: cover member
50: fixed part 70: linkage part
80: sealing part 90: detachable part

Claims (4)

a main body case formed in a cylindrical shape to wrap the connecting portion of the live wire branch ring, the branch sleeve, and the down wire, an input cutout for discharging the down wire is formed on the lower circumferential surface, and incision grooves are formed at both ends;
a cover member installed so as to protrude or insert through the cut-out groove and close both ends of the body case when inserted through the cut-out groove;
a fixing part filled with a working fluid to press and fix the main line or branch sleeve disposed inside the body case; and
and an interlocking part for converting the closing operation of the cover member into an expansion operation of the fixing part and transferring it,
Inserting the main wire into the main body case through the input cutout of the main body case, moving the main body case along the main line, and disposing the live wire branch ring, the branch sleeve and the in-line connection part inside the main body case, When both ends of the main body case are closed by closing the cover member, the fixing part is expanded by the operation of the linkage and fixed while pressing the main line or branch sleeve,
A hinge for rotatably installing the cover member is provided at an upper end of the cut-out groove formed at both ends of the body case, and a connecting rod for supporting the lower end of the cover member is provided at the lower end of the cut-out recess. Insulation device for protecting the dedicated pole transformer live wire branch loop. delete According to claim 1, wherein the cover member,
a first cover rotatably installed on the hinge portion, provided with a horizontal surface to be seated on the connecting rod, and rotatably installed to one side of the main body case; and
A second second that is rotatably installed on the hinge portion, has a horizontal surface to be seated on the connecting rod, is rotatably installed on the other side of the main body case, and closes the end of the main body case when placed in contact with the first cover including a cover,
An insulation device for protecting a live wire branch ring for a distribution pole transformer, characterized in that a passage groove through which a main line passes is formed on a contact surface of the first cover and the second cover.
According to claim 3, wherein the fixing portion,
a first tube installed to be accommodated in the inner wall of the main body case, formed in a circular shape in which a portion is cut so that the main line inserted through the input cutout passes, and filled with a working fluid; and
and a plurality of branch tubes that protrude inward from the first tube and are pressed and fixed to the main line or branch sleeve when the working fluid delivered from the first tube is filled. Insulation device for protection of branch rings.

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