KR100975762B1 - Multiple function type distributing apparatus of structure - Google Patents

Abstract

PURPOSE: A distribution device box of a building is provided to easily repair and check devices by arranging a low voltage unit and an extra-high voltage unit on the front of a distribution panel. CONSTITUTION: A bottom plate(10) is fixed to the bottom of a building. A square pole is fixed between the bottom plate and an upper frame(40). An internal rotation door is arranged on the front of a low voltage unit, an extra-high voltage unit, and a transformer. A cover(50) is arranged on the upper frame to prevent the entry of rainwater. A square protection door frame(60) is arranged on the corner between the bottom plate and the upper frame and protects the low voltage unit, the extra-high voltage unit, and the transformer. The square protection door frame protects the low voltage unit, the extra-high voltage unit, and the transformer.

Description

Multiple function type distributing apparatus of structure}

The present invention relates to a multi-functional switchgear box of a building, and more particularly, a high-pressure unit and a low-pressure unit in which an automatic switch (ASS), an arrester (LA), and a power fuse (PF) are integrated are disposed on the front of the switchboard. Easy maintenance, maintenance and inspection of the equipment, the internal compartment can be easily changed according to the size of the power distribution system, and the internal door, which is a transparent insulation inside the front, can be easily opened in front of the outside door, The present invention relates to a multi-functional power distribution box of a building that can be easily removed while maintaining and visually observing various equipment installed inside the equipment.

In general, there are integrated switchgear, general switchgear, transformer board and low voltage switchgear. Such a power distribution device is used for homes, factories, buildings, hospitals, APT complexes, and various industrial facilities that require electricity, and various facilities and equipment that actually use electricity of a special high voltage (special high voltage) supplied by an electric company (KEPCO). It is a device that operates, controls and monitors electric facilities to use safely by converting (high or low pressure) to low voltage and rated capacity that meets the rating of.

And power distribution devices such as switchboards have an automatic section switch, lightning arrester, power fuse, and metering out in one housing due to ease of installation and reduction of installation area. BACKGROUND OF THE INVENTION An integrated (integrated) switchgear in which a Fit, a Power Potential Transformer, a Main Circuit Breaker, and a Distribution Breaker are installed is widely adopted.

Such a power distribution device required a large installation area, and in order to prevent safety accidents due to leakage of the high voltage part, the weight of the power distribution equipment was increased because multiple cases for the grounding device and the shield were installed.

Increasing the size and weight of the power distribution apparatus will lead to an increase in the installation period and the extension period, thereby increasing the installation cost of the installation.

In addition, the prior art proposed to minimize the size of the conventional power distribution device is Japanese Patent Application Laid-open No. Hei 7-322426, but this technique divides the space inside the case by the partition wall and arranged each component in each compartment around the transformer unit Since the door is installed only at the front side, it is effective to reduce the size of the water substation equipment, but in order to inspect, repair, and replace each component, there is a problem in that the outer panel constituting the case must be disassembled.

In addition, according to the prior art Korean Patent Publication No. 10-300139 "water substation device", when the low-pressure side control door on the front of the case of the water substation is opened, the interior is divided into a vertical partition horizontal partition, horizontal partitions A parking terminal is installed on one side of the horizontal partition, and an advance condenser and a condenser are disposed on the lower side of the horizontal partition, and an external door is installed outside the low pressure side control door. Each door has a viewing window attached to the naked eye, but there is no compartment between the high pressure section and the low pressure section.

The present invention is to solve the above problems, the high and low pressure unit is disposed on the front of the switchboard to facilitate the maintenance, maintenance and inspection of the device, it is possible to easily change the internal compartment according to the size of the power distribution device. It is a complex functional type of building that can easily open and close the external door and have an internal door, which is a transparent insulation inside the front, to eliminate the risk of accidents and to easily observe and maintain various equipment installed inside the device with the naked eye from the outside. The purpose is to provide a distribution box.

In order to achieve the above object, the present invention is a rectangular plate having a constant thickness and horizontal and fixed to the floor surface of the building is formed a plurality of holding holes up and down at regular intervals from each corner to the front, rear, left and right sides, the front end portion The front and rear guide grooves and the left and right guide grooves are formed at the left and right front end portions, respectively, and the left and right end portions of the front guide groove extension lines are formed with ball spring catching balls and right front shaft holes, respectively. A bottom plate having a left shaft hole formed at the front tip portion, and a right shaft hole formed at the front tip portion of the right guide groove;

Flat pillars are rectangular pillars, and each of the front and rear right and left grooves is formed with insertion slot grooves for fastening the bulkhead ends in the longitudinal direction, and bolt holes are formed at the center of the top and bottom surfaces, respectively. A rectangular column which is fixed by a fixing bolt at a lower portion of the holding hole of the bottom plate in a state in which it is positioned to divide the front side space into a low pressure portion and a special high pressure portion, and divide the rear side into a transformer portion by a plurality of partition walls;

Inserting the right side insertion groove of the front left end blind spot and the right side insertion groove of the front left blind end of the bottom plate and the left side insertion groove of the front right end blind end and the front of the blind spot located on the rear end of the left end Up and down long pivot support shafts are formed in the front and rear insertion slot grooves of the blinds located on the rear side of the long slot, and the upper and lower bearings having shaft holes in the center are formed at the upper and lower ends of the pivot support shaft. The upper and lower shaft bars are inserted into the shaft holes of the upper and lower bearings, respectively, and the upper and lower shaft bars are respectively mounted on the upper and lower shaft bearings. A plurality of internal rotating doors in which a transparent door having a projection bar is formed;

A rectangular frame portion having two pillar support holes positioned therein and horizontally positioned on an upper surface of the rectangular pillar with the same size as that of the bottom plate, and having a support fixing hole fastened by fixing bolts on a bolt hole extension line on the upper surface of the rectangular pillar. Frames are respectively formed, the upper ball spring engaging ball is formed on the ball spring engaging hole extension line, the upper left shaft hole is formed on the left shaft hole extension line, the upper right front shaft hole is formed on the right front shaft hole extension line, An upper front guide groove is formed on the bottom of the front guide groove extension line, an upper left guide groove is formed on the bottom of the left guide groove extension line, and an upper right guide groove is formed on the bottom of the right guide groove extension line, An upper frame having an upper right shaft hole formed on the shaft hole extension line;

A cover having a slanted surface which is positioned on an upper surface of the upper frame and welded to be fixed to a central portion, protruding upward to form a square pyramid and inducing rainwater to flow in all directions;

A metal plate door vertically standing at the corner between the bottom plate and the upper frame to block the low pressure part, the extra high pressure part, and the transformer part from the outside. The upper right front shaft is located at the front side of the extra high pressure part. The upper and lower shaft bars are respectively inserted into the ball and the right front shaft hole, and the upper and lower slide bars are respectively inserted into the upper front guide groove and the front guide groove, and the upper and lower slide bars slide into the upper front guide groove and the front guide groove, respectively. A special high pressure front door is formed to be divided into two parts so as not to be separated and hinged to the outside to be folded to the right side. With the slide bar, the upper and lower left ends hang on the spring elastic The rim bar protrudes to the outside and has upper and lower elastic bars which are fixed to the upper ball spring locking ball and the ball spring locking ball by springs, respectively, and a low pressure negative front door having a handle at the center of the right end is formed. Positioned across the left front side of the transformer unit has an upper and lower shaft bar that is inserted into the upper left shaft hole and the left shaft hole on the front side end upper and lower, respectively, and is inserted into the upper left guide groove and the left guide groove on the rear side top and bottom, respectively. It has a sliding upper and lower slide bar and has a handle in the center of the rear side end and is divided into two parts so as not to be separated while being rotated from the center side to the front and rear side so as to be hinged outwards, and a transformer part and a low pressure left side door are formed, and the right side of the high-pressure part And the front side is located over the right side of the transformer unit. The upper and lower sides have upper and lower shaft bars inserted into the upper right shaft hole and the right shaft hole, respectively, and are pivotally rotated. The rear side upper and lower sides have upper and lower slide bars that are respectively inserted into the upper right guide groove and the right guide groove and are slidably moved. A transformer part and a special high pressure right side door are formed to be divided into two parts so as not to be separated while being rotated from the center side to the front and rear side with the handle and folded to the front side, and a flat section is formed in a '┌─┐' shape. It is characterized in that it has a rectangular protective door frame is formed in the transformer unit and the low-pressure unit left door and the transformer unit and the special high-pressure unit right door extension line is formed to enclose the transformer unit rear door to protect the transformer unit.

As described above, the present invention has a special high pressure unit and a low pressure unit in which the automatic switch (ASS), the lightning arrester (LA), the power fuse (PF) is integrally arranged on the front of the switchgear to facilitate maintenance, maintenance and inspection of the equipment. The internal compartment can be easily changed according to the size of the power distribution device, and the inside door, which is a transparent insulation material inside the front while opening the outside door easily and easily, eliminates the risk of accidents while simultaneously It is easy to observe and maintain with the naked eye.

The present invention is not limited to the above-described specific preferred embodiments, and any person skilled in the art may make various modifications without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is a perspective view showing the construction of the multi-function power distribution box of the building according to an embodiment of the present invention,
Figure 2 is a perspective view showing a rectangular protective door opening of the multi-functional power distribution box of the building according to an embodiment of the present invention,
Figure 3 is an exploded perspective view showing the fastening of the multi-functional power distribution box of the building according to the embodiment of the present invention,
Figure 4 is an enlarged cross-sectional plan view of the main portion of the multi-functional power distribution box of the building according to an embodiment of the present invention,
Figure 5 is a plan sectional view showing a state of use of the multi-function power distribution box of the building according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view showing the construction of the multi-functional distribution device box of a building according to an embodiment of the present invention, Figure 2 is a perspective view showing the opening of a rectangular protective door of the multi-functional distribution box of a building according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing a fastening of the multi-functional power distribution box of the building according to an embodiment of the present invention, Figure 4 is an enlarged plan sectional view of the main portion of the multi-functional power distribution box of the building according to an embodiment of the present invention, Figure 5 A cross-sectional view showing a state of use of the multi-functional power distribution box of the building an embodiment of the invention.

For reference, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is omitted.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

Therefore, the definition should be made based on the contents throughout the specification.

The multi-functional power distribution box of the building of the present invention, the bottom plate 10 is fixed to the floor of the building, and the bottom plate 10 and the upper frame 40 is fixed at a predetermined interval space by the partition wall 23 The internal rotation doors 30, 30a, 30b, 30c, which are positioned at the front and rear of the rectangular column 20 for distinguishing the lower pressure part 24, the front of the low pressure part 24, the front of the extra high pressure part 25, and the left and right sides of the transformer part 26, respectively, 30d), an upper frame 40 for fixing the blind spot 20 at the top, a cover 50 for preventing rainwater from entering the upper frame 40, the bottom plate 10 and the upper frame 40 Located in the corner between the low pressure unit 24 and the extra high pressure unit 25 and the transformer unit 26 is composed of a rectangular protective door frame 60 to protect from the external impact.

The bottom plate 10 is a rectangular plate body fixed to the building floor surface having a constant thickness and horizontal, a plurality of holding holes (11) are formed up and down at a predetermined interval from front to rear, left and right at each corner, the front end portion The front and rear guide grooves 12 and the left and right guide grooves 13 and 14 are formed at the left and right front ends, respectively, and are extended to the left and right ends of the front guide grooves 12, respectively. The spring catching hole 15 and the right front shaft hole 16 are formed, and the left shaft hole 17 is formed at the front end of the left guide groove 13, and the right shaft hole 18 is formed at the front tip of the right guide groove 14. ) Is formed.

The rectangular pillar 20 is a pillar having a flat cross section, and the insertion groove grooves 21, 21a, 21b, and 21c into which the front and rear left and right sides of the partition 23, which is a vertical plate which separates the partitions in the longitudinal direction, are fixed. Respectively formed, and bolt holes 22 and 22a are formed at the centers of the top and bottom surfaces, respectively, and the bottom plate is formed with the bolt holes 22a at the bottom positioned above the support hole 11 of the bottom plate 10. (10) is fixed by the fixing bolt (22b) in the lower portion of the holding hole (11) and divides the front space into the low pressure portion 24 on the left side and the extra high pressure portion 25 on the right side, and the rear side of the transformer portion 26 ) And separated by a plurality of partitions (23).

The inner pivot doors 30, 30a, 30b, 30c, and 30d are the right side insertion slot grooves 21c of the front left end rectangular support 20 of the bottom plate 10 and the right side of the front left rectangular support 10, respectively. On the left side insertion slot groove 21a and the front end right side blind end 20 of the insertion slot groove 21c and the front end insertion slot groove 21 and the right end rear side of the blind spot 20. Up and down long pivot support shafts 31 are formed in the front insertion slot grooves 21 of the blind spots 20, respectively, and are horizontally projected on the upper and lower ends of the pivot support shafts 31 to form shaft holes 32a, The upper and lower bearings 32 and 33 having 33a) are respectively formed, and the upper and lower bearings 32 and 33 are respectively inserted into shaft holes 32a and 33a of the upper and lower bearings 32 and 33, respectively. It has a short bar (35, 35a) is inserted into the insertion groove grooves (21a, 21b, 21c) of the rectangular column 20 facing the center of the right front end face with the elasticity of the spring (36a) A transparent door 34 with the elastic projecting bar 36 to be engaging are formed. The inner pivot doors 30 and 30a are bisected with respect to the center portion, and a tantalum protrusion bar 36 is formed on one side end surface of the central portion by elastic spring 26a, and a tantalum protrusion bar on the other side end surface corresponding thereto. It is preferable to form the ball recess 36b into which the 36 is inserted.

The upper frame 40 is a frame having the same size as the bottom plate 10, and is positioned horizontally on the top surface of the blind spot 20 to be fixed on an extension line of the upper surface bolt hole 22 of the blind spot 20. Square frame portion 41 having two pillar fixing holes 41a fastened and fastened by bolts 41b and two intermediate support frames 42 and 43 therein are formed, respectively, on the extension line of the ball spring catching hole 15. An upper ball spring engaging hole 41c is formed in the upper left shaft hole 41d on the extension line of the left shaft hole 17, and an upper right front shaft hole 41e is formed on the extension line of the right front shaft hole 16. The upper front guide groove 44 is formed on the bottom surface of the front guide groove 12 extension line, and the upper left guide groove 45 is formed on the bottom surface of the left guide groove 13 extension line. An upper right guide groove 46 is formed at a bottom of the groove 14 extending along the right axis hole 18. The upper right shaft hole 41f is formed on the extension line.

The cover 50 is a rectangular plate body which is positioned on the upper surface of the upper frame 40 to be welded and fixed, and the inclined surface 51 is formed to guide the rainwater to flow in all directions while forming a central pyramid protruding upward. .

The rectangular protective door 60 is vertically erected at the corners between the bottom plate 10 and the upper frame 40, respectively, so that the low pressure part 24, the extra high pressure part 25, and the transformer part 26 are outside. The upper and lower shaft bars (61d, 61e) are positioned in the front of the special high-pressure unit 25, the upper right front shaft hole (41e) and the right front shaft hole (16), respectively, which are located at the front side of the special high pressure part (25). It has upper and lower slide bars (61b, 61c) are inserted into the upper front guide groove 44 and the front guide groove 12, respectively, and slide on the upper and lower left end and has a handle (61a) at the left end center and the center side A special high pressure front door 61 is formed to be hinged outwardly and folded to the right side while being rotated to the left and right while being rotated from left to right, and the low pressure part 24 is located at the front side and is located on the upper and lower right sides of the upper front guide groove. (44) and the front guide groove (12), respectively The upper and lower sliding bars 62b and 62c are inserted and slid, and the upper and lower sliding bars 62g protrude outwardly with the elasticity of the spring 62f, and the upper ball spring catching hole 41c and the ball spring catching ball ( 15, the lower pressure side front door 62 having upper and lower elastic bars 62d and 62e fixed to the locking shaft by the spring 62f and the handle 61a at the center of the right end is formed. 24) the upper and lower shaft bars 63d and 63e, which are positioned over the left side and the front left side of the transformer unit 26, are inserted into the upper left shaft hole 41d and the left shaft hole 17, respectively, and are pivotally rotated on the upper and lower ends. It has upper and lower slide bars (63b, 63c) which are inserted into the upper left guide groove 45 and the left guide groove 13, respectively, and are slidably moved on the rear side end, and have a handle (63a) at the center of the rear end. Biscuit from side to side to prevent separation A transformer part and a low pressure part left door 63 are hinged outwardly and are folded to the front side, and are positioned over the right side of the extra high pressure part 25 and the right front side of the transformer part 26, and the upper part is disposed on the front side upper and lower surfaces. The upper and lower shaft bars 64d and 64e are inserted into the right shaft hole 41f and the right shaft hole 18, respectively, and pivotally inserted into the upper right guide groove 46 and the right guide groove 14, respectively. The upper and lower sliding bars (64b, 64c) which is sliding and has a handle (64a) in the center of the rear side end and is divided into two parts so as not to be separated while being rotated from the center side to the front and rear side and hinged to the outside and folded to the front side The high pressure side right door 64 is formed, and the flat section has a '┌─┐' shape, and the left and right sides of the rear and rear parts of the transformer part 26 include the transformer part and the low pressure part left door 63, the transformer part, and the special part. High pressure As the extension in close contact on the right door 64, a transformer extension portion rear-side door 65 to wrap protects the transformer section 26 is formed.

In the present invention as described above, the special high-pressure unit 25 and the low-pressure unit 24 in which the automatic switch ASS, the arrester LA, and the power fuse PF are integrated are arranged on the front side of the power distribution apparatus to maintain the equipment. Easy maintenance and inspection, the internal compartment can be easily changed according to the size of the power distribution device by the rectangular column 20 and the partition 23, the special high-pressure front door 61 and low-voltage negative front door 62 And internal transparent doors 30 and 30a which are transparent insulating materials inside the front surface while easily opening the rectangular protective door 60 by the transformer part and the low pressure part left door 63 and the transformer part and the high pressure part right door 64. And 30b, 30c30d) to eliminate the risk of accidents and at the same time maintain and visually observe various equipment installed inside the device through the transparent transparent doors (30,30a, 30b, 30c30d). Will be.

10: bottom surface 11: holding ball
12: Front guide groove 13: Left guide groove
14: right guide groove 15: ball spring locking ball
16: right front shaft ball 17: left shaft ball
18: Right shaft ball
20: Blind spot 21, 21a, 21b, 21c: Insertion groove
22,22a: Bolt hole 22b: Fixing bolt
23: bulkhead 24: low pressure portion
25: high-pressure unit 26: transformer unit
30,30a, 30b, 30c, 30d: Internal rotating door
31: pivot support shaft 32,33: upper and lower shaft support
32a, 33a: Axis 34: Transparent door
35,35a: up and down shortened bar 36: bullet protrusion bar
36a: spring 36b: elastic groove
40: upper frame 41: rectangular frame portion
41a: Shoring fixing hole 41b: Fixing bolt
41c: upper ball spring locking hole 41d: upper left shaft hole
41e: Upper right front shaft 41f: Upper right front shaft
42,43: Intermediate support frame 44: Upper front guide groove
45: upper left guide groove 46: upper right guide groove
50: cover 51: inclined surface
60: rectangular protective door 61: special high voltage front door
61a: handle 61b, 61c: upper and lower slide bar
61d, 61e: upper and lower shaft bar 62: low-pressure negative front door
62a: Handle 62b, 62c: Upper and Lower Slide Bars
62d, 62e: Upper and lower elastic bars 62f: Spring
62g: Hanging Bar 63: Transformer and Low Voltage Left Door
63a: Handle 63b, 63c: Upper and lower slide bars
63d, 63e: Upper and lower shaft bar 64: Right side door of transformer part and high voltage part
64a: handle 64b, 64c: upper and lower slide bars
64d, 64e: Upper and lower shaft bar 65: Rear side door of transformer

Claims (1)

It is a rectangular plate body which is fixed to the floor of the building and has a constant thickness and is horizontally formed, and a plurality of holding holes 11 are formed up and down at a predetermined interval from each corner to front, rear, left and right, and the front side and the left and right ends are The front guide groove 12 and the left and right guide grooves 13 and 14 are formed to be extended to the outside of the main hole 11, respectively, and the ball spring locking balls 15 are formed at the left and right ends of the front guide groove 12 extension line, respectively. And a right front shaft hole 16, a left shaft hole 17 is formed at the front end of the left guide groove 13, and a right side shaft hole 18 is formed at the front end of the right guide groove 14. 10;
As the pillar having a flat cross section, inserting grooves 21, 21a, 21b, 21c are formed on the front, left, right, and right sides, and the insertion end grooves 21, 21a, 21b, 21c, respectively, in which the front end of the partition 23 is divided into longitudinal sections. Bolt holes 22 and 22a are formed in the center, respectively, and the support holes of the bottom plate 10 are formed in the state in which the bolt holes 22a of the bottom surface are positioned above the support hole 11 of the bottom plate 10. 11) It is axially fixed by the fixing bolt 22b at the bottom to divide the front space into the low pressure part 24 on the left side and the extra high pressure part 25 on the right side, and the rear side is a plurality of partition walls 23 by the transformer part 26. Blind spot 20 to be separated by;
The right side insertion slot groove 21c of the front left end square holder 20 and the right side insertion slot groove 21c of the front left rectangular holder 10 and the front right end square holder 20 of the bottom plate 10 are formed. On the front insertion slot groove 21 of the left side insertion slot groove 21a and the rectangular holder 20 positioned on the rear end of the left end and on the front insertion slot groove 21 of the blind spot 20 positioned on the rear side of the right edge. Up and down long pivot support shafts 31 are formed, respectively, and the upper and lower support shafts 32 and 33 having shaft holes 32a and 33a in the center are formed at the upper and lower ends of the pivot support shafts 31, respectively. The upper and lower left and bottom shaft bars (35, 35a) are respectively inserted into the shaft holes (32a, 33a) of the upper and lower bearings (32, 33) on the upper and lower left sides of the standing plate body of transparent insulation material and face the center of the right front end surface. It has a ball projecting bar 36 is inserted into the insertion groove grooves (21a, 21b, 21c) of the blind spot 20 by the elasticity of the spring (36a) to be locked. Transparent door plurality of internal pivoting door is 34 is formed (30,30a, 30b, 30c, 30d) and;
The frame having the same size as the bottom plate 10, it is positioned horizontally on the top surface of the blind spot 20 is fastened by a fixing bolt (41b) on the extension line of the upper end bolt hole 22 of the blind spot 20 Square frame portion 41 having a fixed holding hole (41a) and the inner two intermediate support frames (42, 43) are formed, respectively, and the upper ball spring catching ball on the ball spring catching hole (15) extension line ( 41c) is formed, an upper left shaft hole 41d is formed on the left shaft hole 17 extension line, and an upper right front shaft hole 41e is formed on the right front shaft hole 16 extension line, and the front guide groove is formed. (12) An upper front guide groove 44 is formed at the bottom of the extension line, and an upper left guide groove 45 is formed at the bottom of the left guide groove 13 extension line, and the bottom of the right guide groove 14 is extended. An upper right guide groove 46 is formed in the upper right side of the right shaft hole 18. An upper frame 40 on which the side shaft holes 41f are formed;
A cover 50 formed on the upper surface of the upper frame 40 to be welded and fixed with a square plate body, the central portion of which protrudes upward to form a quadrangular pyramid, and an inclined surface 51 for inducing rainwater to flow in all directions;
The door is a metal plate body standing vertically at the corner between the bottom plate 10 and the upper frame 40 to block the low pressure part 24, the extra high pressure part 25 and the transformer part 26 from the outside, Located on the front side of the high-pressure unit 25 has upper and lower shaft bars 61d and 61e respectively inserted into the upper right front shaft hole 41e and the right front shaft hole 16 on the upper and lower right sides, and the upper front on the upper and lower left ends. The upper and lower slide bars 61b and 61c inserted into the guide groove 44 and the front guide groove 12, respectively, are slid and have a handle 61a at the center of the left end. While the hinge is rotated to the outside to be folded to the right side is formed a special high pressure front door 61, located in the front side of the low pressure portion 24, the upper front and rear guide grooves 44 and the front guide groove 12 on the upper and lower right ends ) Slides inserted into each With the sliding bars 62b and 62c and the upper and lower left ends, the locking bar 62g protrudes outward with the elasticity of the spring 62f, respectively, to the upper ball spring catching ball 41c and the ball spring catching ball 15, respectively. The low pressure side front door 62 having upper and lower elastic bars 62d and 62e fixed by the spring 62f and having a handle 61a at the center of the right end is formed, and the left side of the low pressure portion 24 The upper and lower shaft bars (63d, 63e) are inserted into the upper left shaft hole (41d) and the left shaft hole (17) and are pivotally rotated, respectively, located on the front left end of the transformer unit (26) and located on the left front side. Has upper and lower slide bars (63b, 63c) which are inserted into the upper left guide groove 45 and the left guide groove 13, respectively, and are slidably moved, and have a handle (63a) at the center of the rear side end and rotate back and forth from the center side It is divided into two parts and hinged to the outside A transformer part and a low pressure part left door 63 which are folded in the direction are formed, and are positioned over the right side of the special high pressure part 25 and the right front side of the transformer part 26, and the upper right shaft hole 41f is disposed on the upper and lower sides of the front side. And upper and lower shaft bars 64d and 64e, which are inserted into and right shaft holes 18, respectively, and pivotally rotated, and upper and lower portions respectively inserted into the upper right guide groove 46 and the right guide groove 14 on the rear side upper and lower surfaces. Transformer part and special high pressure right side door having sliding bars 64b and 64c, having a handle 64a at the center of the rear end, divided into two parts so as not to be separated while being rotated from the center side to the front and rear side and hinged to the outside. ) Is formed in a flat cross section, and the left and right sides of the rear and rear portions of the transformer unit 26 are formed in the transformer unit and the low pressure unit left door 63, and the transformer unit and the special high pressure unit right door 64. ) In extension The complex function distribution box of a building having a rectangular protective door (60) in which the rear side door (65) of the transformer part is formed to surround and protect the transformer part (26) while being in close contact.

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