A pad transformer comprising locking device for cable box

Abstract

The present invention relates to a pad transformer comprising: a transformer enclosure; a cable box coupled to the front of the transformer enclosure; a support frame located at the bottom of the cable box and positioned at the lower front of the transformer enclosure; and a locking device portion for connecting the cable box and the support frame, wherein the locking device portion comprises: a first fixing portion disposed in a certain area of ​​the support frame; and a second fixing portion disposed in an area corresponding to the first fixing portion and disposed in a certain area of ​​the cable box, wherein the support frame comprises: a front plate of the support frame; and a recess formed inwardly of the support frame based on the front surface of the front plate, and wherein the first fixing portion is disposed in the internal space of the recess. The invention can provide a pad transformer including a cable box locking device portion capable of reducing the volume of the cable box.

Description

Technology Field

[0001] The present invention relates to a pad transformer including a cable box locking device, and more specifically, to a pad transformer including a cable box locking device capable of reducing the volume of the cable box. Background Technology

[0002] Generally, a pad transformer installed on the ground consists of a transformer body and an enclosure housing the transformer body, and on the front of the enclosure, a plurality of connection terminals connected to the transformer and cables connected to said connection terminals are arranged.

[0003] These connection terminals and cables are designed to be closed into a cable box when not in use to prevent safety accidents, malfunctions, and theft.

[0004] That is, a support frame is positioned at the lower front of the outer casing, and the cable box has a structure that rotates by being hinged to the upper part of the outer casing. When in use, the cable box is lifted upward to expose the connection terminals and cables, and when not in use, the cable box is lowered and comes into contact with the support frame to close.

[0005] A fixing part is formed in each of the cable box and the support frame, and the cable box and the support frame can be fastened and fixed by combining each fixing part.

[0006] However, in the case of such a general pad transformer, there is a problem in that the volume of the cable box becomes unnecessarily large due to the fixing parts formed on the cable box and the support frame, respectively. Prior art literature

[0007] Korean Published Patent 10-2024-0178248 The problem to be solved

[0008] The objective of the present invention is to provide a pad transformer that includes a cable box locking device capable of reducing the volume of the cable box.

[0009] The purposes of the present invention are not limited to those mentioned above, and other unmentioned purposes will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0010] To solve the aforementioned problem, the present invention provides a pad transformer comprising: a transformer enclosure; a cable box coupled to the front of the transformer enclosure; a support frame located at the bottom of the cable box and positioned at the lower front of the transformer enclosure; and a locking device portion for connecting the cable box and the support frame, wherein the locking device portion comprises: a first fixing portion disposed in a certain area of ​​the support frame; and a second fixing portion disposed in an area corresponding to the first fixing portion and disposed in a certain area of ​​the cable box, wherein the support frame comprises: a front plate of the support frame; and a recess formed inwardly of the support frame based on the front surface of the front plate, and wherein the first fixing portion is disposed in the internal space of the recess.

[0011] In addition, the present invention comprises: an inner plate positioned at a first depth from the front surface of the front plate toward the interior of the support frame; a first longitudinal side plate for connecting one longitudinal end of the inner plate and a first area of ​​the front surface of the front plate; a second longitudinal side plate positioned facing the first longitudinal side plate and for connecting the other longitudinal end of the inner plate and a second area of ​​the front surface of the front plate; and a widthwise lower plate positioned continuously with the first longitudinal side plate (524) and the second longitudinal side plate and for connecting the lower widthwise end of the inner plate and a third area of ​​the front surface of the front plate, and the first fixing part comprises a first locking hole located in a certain area of ​​the inner plate; The present invention provides a pad transformer comprising a first lock fastening portion that is located adjacent to and positioned with respect to the first lock hole and is fixed to the inner plate of the recessed portion, and protrudes from the inner plate in an external direction of the support frame, wherein the first lock fastening portion includes a first hole into which a lock is fastened.

[0012] In addition, the present invention provides a pad transformer comprising: a second locking part comprising a locking plate; an upper plate positioned above the height direction of the locking plate, bent from the locking plate and protruding forward of the second locking part; a handle bent from the upper plate and protruding downward of the second locking part; a second locking hole positioned in an area corresponding to the first locking hole; and a second lock fastening part formed along the periphery of the second locking hole and protruding forward of the locking plate, wherein the second lock fastening part comprises a second hole formed in an area corresponding to the first hole of the first lock fastening part; and an open groove positioned in an area adjacent to the second hole, located in a second quadrant area based on the circular cross-section of the cylindrical second lock fastening part. Effects of the invention

[0013] According to the present invention as described above, a pad transformer including a cable box locking device capable of reducing the volume of the cable box can be provided. Brief explanation of the drawing

[0014] FIG. 1 is a conceptual perspective view illustrating the closed state of the cable box of the cable box locking device of a pad transformer of a general structure, FIG. 2 is a conceptual perspective view illustrating the open state of the cable box of the cable box locking device of a pad transformer of a general structure, FIG. 3 is an enlarged view of the key part of section 'A' in FIG. 1, FIG. 4 is a cross-sectional view of FIG. 3, FIG. 5 is an enlarged view of the key part of section 'B' in FIG. 2, and FIG. 6 is an enlarged view for explaining the second locking part in a pad transformer of a general structure. FIG. 7 is a schematic drawing illustrating a second fixing part according to the present invention, and FIG. 8 is a schematic drawing illustrating a state in which the first fixing part and the second fixing part are combined according to the present invention. Specific details for implementing the invention

[0015] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0016] Specific details for implementing the present invention will be described in detail with reference to the drawings attached below. Regardless of the drawings, identical reference numerals refer to identical components, and "and / or" includes each of the mentioned items and all combinations of one or more.

[0017] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be the second component within the technical scope of the present invention.

[0018] The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components in addition to the components mentioned.

[0019] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which this invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0020] Spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used to facilitate the description of the relationship between one component and other components as illustrated in the drawings. Spatially relative terms should be understood as encompassing different orientations of components during use or operation, in addition to the orientations depicted in the drawings. For example, if a component depicted in a drawing is inverted, a component described as "below" or "beneath" of another component may be placed "above" of that component. Therefore, the exemplary term "below" may encompass both the lower and upper directions. Components may also be oriented in other directions, and accordingly, spatially relative terms may be interpreted according to the orientation.

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0022] FIG. 1 is a conceptual perspective view illustrating the closed state of the cable box of the cable box locking device of a pad transformer of a general structure, FIG. 2 is a conceptual perspective view illustrating the open state of the cable box of the cable box locking device of a pad transformer of a general structure, FIG. 3 is an enlarged view of the key part of section 'A' in FIG. 1, FIG. 4 is a cross-sectional view of FIG. 3, FIG. 5 is an enlarged view of the key part of section 'B' in FIG. 2, and FIG. 6 is an enlarged view for explaining the second locking part in a pad transformer of a general structure.

[0023] Referring to FIGS. 1 to 6, a pad transformer of a general structure includes: a transformer housing (10); a cable box (100) coupled to the front of the transformer housing; a support frame (200) located at the bottom of the cable box and at the bottom of the front of the transformer housing; and a locking device for connecting the cable box and the support frame.

[0024] At this time, it can be understood that the transformer body is accommodated in the transformer enclosure, and a plurality of connection terminals and cables are accommodated in the cable box.

[0025] Additionally, the cable box (100) has a rectangular shape, and the rear and bottom surfaces of the cable box (100) that come into contact with the front surface of the transformer housing (10) can be opened.

[0026] In addition, the cable box (100) may have an empty space formed on the inside so as not to interfere with the connection terminal and the cables.

[0027] At this time, the cable box (100) may be made of steel, provided, however, that the material of the cable box is not limited in the present invention.

[0028] In addition, the upper rear corner portion of the cable box (100) is connected to the upper front portion of the transformer housing (10) by a hinge (drawing number not indicated), and can be rotated in the up and down direction relative to the connected hinge portion.

[0029] That is, it can be rotated from a closed state as shown in FIG. 1 to an open state as shown in FIG. 2. Here, 'closed' can be understood as a state in which the front of the enclosure (10) is covered with a cable box (100) so that the plurality of connection terminals and cables arranged on the front of the enclosure (10) are not exposed to the outside, and 'open' can be understood as a state in which the plurality of connection terminals and cables arranged on the front of the enclosure (10) are exposed to the outside.

[0030] Continuing, referring to FIGS. 1 to 6, the support frame (200) can be attached to the lower front of the outer casing (10), and at this time, the support frame (200) can be attached to the outer casing (10) so as to be detachable.

[0031] Additionally, the support frame (200) may have a shape corresponding to the shape of the cable box (100), and thus, when the cable box (100) is closed as shown in FIG. 1 while in an open state as shown in FIG. 2, the lower part of the cable box (100) may come into contact with the upper part of the support frame (200) and be closed.

[0032] Meanwhile, as described above, a pad transformer of a general structure includes a locking device that connects the cable box and the support frame, and the locking device includes a first fixing part (300) disposed in a certain area of ​​the support frame (200); and a second fixing part (400) disposed in an area corresponding to the first fixing part and disposed in a certain area of ​​the cable box (100).

[0033] That is, by connecting the first fixing part and the second fixing part, the locking device part can connect the cable box and the support frame.

[0034] Continuing, referring to FIGS. 1 to 6, a pad transformer of a general structure includes a locking bolt (500) for connecting the first fixing part and the second fixing part.

[0035] Below, the structure of the first fixing part (300), the second fixing part (400), and the locking bolt (500) will be described.

[0036] First, the first fixing part is disposed in a certain area of ​​the support frame (200) as described above and includes a first locking hole (310); a locking nut (320) disposed inside the first locking hole; and a cage (330) that accommodates the locking nut.

[0037] At this time, the first locking hole (310) may be formed in the support plate (200), and it is preferable that the size of the first locking hole (310) be smaller than the size of the locking nut (320) so that the locking nut (320) cannot come out.

[0038] Additionally, the cage (330) may be coupled to the rear of the support frame (200) in which the first locking hole (310) is formed, and the cage (330) may be provided with a tolerance space (331) in which the locking nut (320) is stored. That is, the locking nut (320) may be moved up, down, left, and right and tilted within a set range while stored in the tolerance space (331), and the tolerance space (331) may be set with the size in the up, down, left, and right directions and the length in the front and back directions in consideration of this.

[0039] The cage (330) can be coupled to the support frame (200) through a known fastening bolt, and the cage (330) may also be further provided with a first lock fastening part (332).

[0040] At this time, the first lock fastening part (332) has a shape that protrudes forward, and a corresponding insertion hole may be formed in the support frame (200), and a first hole in which a lock (not shown) can be fastened may be formed in the first lock fastening part (332).

[0041] Continuing with reference to FIGS. 1 to 6, as described above, the second fixing part (400) may be configured to include a locking plate (410) positioned in an area corresponding to the first fixing part and positioned in a certain area of ​​the cable box (100); a left and right guide shaft (420) positioned above the locking plate; and a left and right guide hole (430) into which the left and right guide shaft is inserted.

[0042] At this time, the locking plate (410) can be coupled to the lower part of the cable box (100), and the upper part of the locking plate (410) can be fastened to the lower part of the cable box (100) through the left and right guide shafts (420). To this end, the cable box (100) may have left and right guide holes (430) in the shape of elongated holes formed in the left and right directions.

[0043] Additionally, a handle (412) bent in a forward and downward direction may be formed on the upper part of the locking plate (410), and the front of the outer casing can be opened and closed by gripping the handle (412) and rotating the cable box (100) up and down.

[0044] Furthermore, the locking plate (410) includes a second locking hole (411) located in an area corresponding to the first locking hole (310), and the second fixing part may be formed along the periphery of the second locking hole (411), and a second lock fastening part (413) may be formed protruding forward of the locking plate.

[0045] At this time, the second lock fastening part (413) may have a second hole formed corresponding to the first hole formed in the first lock fastening part (332), and additionally, the second lock fastening part (413) may include an open groove with an open bottom, and may be formed to protrude forward while having a cylindrical shape.

[0046] Additionally, the locking plate (410) may have an insertion groove (414) formed therein for inserting the first lock fastening part (332) formed in the first fixing part (300) when the cable box (100) is closed, and the insertion groove (414) may be formed at a predetermined height in the upward direction with one lower side of the locking plate (410) open. Here, the predetermined height may correspond to the upper and lower height of the first lock fastening part (332).

[0047] At this time, when the pad transformer of a general structure is fastened with the aforementioned lock (not shown), the locking ring of the lock can be fastened through the first hole formed in the first lock fastening part (332), through the second hole formed in the second lock fastening part (413), and through the open groove of the second lock fastening part (413).

[0048] Continuing, referring to FIGS. 1 to 6, the locking bolt (500) has a pentagonal head on one side (left side based on FIG. 4) and bolt threads may be formed on the other side (right side based on FIG. 4).

[0049] At this time, the locking bolt (500) can be fastened to a locking nut (320) housed inside the tolerance space (331) of the cage (330) by passing through the first locking hole (310) and the second locking hole (411).

[0050] Meanwhile, a flat washer (520) may be further attached to reinforce the fastening force of the locking bolt (500), and by attaching a coil spring (510) and a snap ring (530) to the locking bolt (500), the joining and separating operations of the locking bolt (500) can be performed more easily, and the locking bolt (500) can be prevented from being lost by detaching from the second locking hole (411).

[0051] A pad transformer of the general structure as described above includes a locking device that secures the cable box and the support frame as described above, and the locking device includes a first fixing part (300) disposed in a certain area of ​​the support frame (200); and a second fixing part (400) disposed in an area corresponding to the first fixing part and disposed in a certain area of ​​the cable box (100).

[0052] At this time, the first fixing part and the second fixing part are combined, and through the combination of the first fixing part and the second fixing part, the cable box and the support frame can be fastened and fixed.

[0053] However, in the case of such a general pad transformer, due to the arrangement of the first fixing part and the second fixing part, as can be seen in FIG. 1, there is a problem that the volume of the cable box increases.

[0054] That is, as shown in Fig. 1, in a pad transformer of a general structure, the front part of the cable box and the front part of the support frame are not aligned in the height direction, and the front part of the cable box protrudes further forward than the front part of the support frame.

[0055] As a result, the cable box has a problem in that its volume becomes unnecessarily large by the amount of the front portion of the cable box that protrudes more than the front portion of the support frame.

[0056] In addition, in a pad transformer of a general structure, when the aforementioned lock (not shown) is fastened, the locking ring of the lock can be fastened through the first hole formed in the first lock fastening part (332), through the second hole formed in the second lock fastening part (413), and through the open groove of the second lock fastening part (413). However, if the width of the locking ring of the lock is small, there is a problem in that it is not easy to fasten the lock to the first lock fastening part (332) and the second lock fastening part (413).

[0057] Hereinafter, the pad transformer according to the present invention will be described in more detail.

[0058] Hereinafter, the pad transformer including the cable box locking device according to the present invention may refer to the pad transformer of the general structure of FIGS. 1 to 6 described above, except for what is described below.

[0059] FIG. 7 is a schematic drawing illustrating a second fixing part according to the present invention, and FIG. 8 is a schematic drawing illustrating a state in which the first fixing part and the second fixing part are combined according to the present invention.

[0060] First, referring to the aforementioned FIGS. 1 to 6, the basic structure of the pad transformer according to the present invention is described as follows.

[0061] More specifically, referring to FIGS. 1 to 8, the pad transformer according to the present invention comprises: a transformer housing; a cable box (510) coupled to the front of the transformer housing; a support frame (520) located at the bottom of the cable box and at the bottom of the front of the transformer housing; and a locking device (600, 700) for connecting the cable box and the support frame.

[0062] Additionally, the locking device comprises a first fixing part (600) disposed in a certain area of ​​the support frame (520); and a second fixing part (700) disposed in an area corresponding to the first fixing part and disposed in a certain area of ​​the cable box (510).

[0063] That is, by connecting the first fixing part and the second fixing part, the locking device part can connect the cable box and the support frame.

[0064] Continuing with reference to FIGS. 7 and FIGS. 8, first, the support frame (520) according to the present invention comprises: a front plate (521) of the support frame; and a recess (522) formed inwardly in the support frame with respect to the front surface of the front plate.

[0065] At this time, the recess (522) comprises: an inner plate (523) positioned at a first depth inward from the front surface of the front plate toward the inside of the support frame; a first longitudinal side plate (524) for connecting one longitudinal end of the inner plate and a first area of ​​the front surface of the front plate; a second longitudinal side plate (525) positioned facing the first longitudinal side plate and connecting the other longitudinal end of the inner plate and a second area of ​​the front surface of the front plate; and a widthwise lower plate (526) positioned continuously with the first longitudinal side plate (524) and the second longitudinal side plate (525) and connecting the lower longitudinal end of the inner plate and a third area of ​​the front surface of the front plate.

[0066] That is, in the present invention, the inner plate (523), the first longitudinal side plate (524), the second longitudinal side plate (525), and the lower width plate (526) are arranged in succession to form the recessed portion.

[0067] Additionally, in the present invention, the depth of the recess can be determined by a first depth in which the inner plate (523) is located from the front surface of the front plate toward the inside of the support frame.

[0068] Continuing with reference to FIGS. 7 and FIGS. 8, in the present invention, the first fixing part (600) is disposed in the internal space of the recessed part, and more specifically, the first fixing part includes a first locking hole (not shown) located in a certain area of ​​the inner plate; and a first lock fastening part (610) located adjacent to the first locking hole and fixed to the inner plate of the recessed part, while protruding outward from the inner plate toward the support frame.

[0069] In addition, the first lock fastening part (332) includes a first hole (611) into which a lock (not shown) is fastened.

[0070] At this time, in the present invention, it is preferable to form the protrusion length of the first lock fastening part (610) protruding from the inner plate in the outer direction of the support frame so as not to exceed the front surface of the front plate.

[0071] Meanwhile, the first fixing part may include a locking nut disposed inside the first locking hole as described in FIGS. 1 to 6 above; and a cage that accommodates the locking nut, provided that the present invention does not limit the presence or absence of these components.

[0072] Continuing with reference to FIGS. 7 and 8, as described above, the second fixing part (700) is positioned in an area corresponding to the first fixing part and is positioned in a certain area of ​​the cable box (510), and includes: a locking plate (710); an upper plate (711) located above the height direction of the locking plate, which is bent from the locking plate and protrudes forward of the second fixing part; a handle (712) that is bent from the upper plate and protrudes downward of the second fixing part; a second locking hole (720) located in an area corresponding to the first locking hole; and a second lock fastening part (730) formed along the periphery of the second locking hole (720) and protruding forward of the locking plate.

[0073] At this time, in the present invention, the front of the outer casing can be opened and closed by gripping the handle and rotating the cable box up and down.

[0074] In addition, the second lock fastening part (730) may have a cylindrical shape and be formed to protrude forward of the lock plate.

[0075] At this time, the second lock fastening part (730) includes a second hole (731) formed in an area corresponding to the first hole (611) of the first lock fastening part (610), and furthermore, the second lock fastening part (730) according to the present invention is characterized by including an open groove (732) located in a second quadrant area based on the circular cross-section of the cylindrical second lock fastening part (730), which is located in an area adjacent to the second hole.

[0076] More specifically, generally, the quadrants include the first quadrant, the second quadrant, the third quadrant, and the fourth quadrant, for example, the first quadrant refers to one of the four quadrants where the signs of both x and y are positive.

[0077] In terms of coordinates, it corresponds to the region (x,y) (where x>0, y>0), and the region symmetric to the first quadrant with respect to the x-axis can be defined as the second quadrant, the region symmetric to the y-axis as the fourth quadrant, and the region symmetric to the origin as the third quadrant.

[0078] At this time, in the present invention, the second hole can be defined as being located in the positive x-axis direction based on the circular cross-section of the second lock fastening part (730), and based on this definition of the second hole, the open groove can be defined as being located in the second quadrant region based on the circular cross-section of the second lock fastening part (730).

[0079] As described above, in a pad transformer of a general structure, when the aforementioned lock (not shown) is fastened, the locking ring of the lock can be fastened through the first hole formed in the first lock fastening part, through the second hole formed in the second lock fastening part, and through the open groove of the second lock fastening part (413). However, if the width of the locking ring of the lock is small, there is a problem in that it is not easy to fasten the lock to the first lock fastening part and the second lock fastening part.

[0080] More specifically, in a pad transformer of a general structure, the aforementioned open groove is located at the bottom of the second lock fastening part, that is, in the negative y-axis direction, so the gap between the open groove and the second hole is large, and when the width of the locking ring of the lock is small, there is a problem that it is not easy to fasten the lock to the first lock fastening part and the second lock fastening part.

[0081] However, in the present invention, the second hole is positioned in the positive x-axis direction based on the circular cross-section of the second lock fastening part (730), and the open groove is positioned in the second quadrant area based on the circular cross-section of the second lock fastening part (730). Since the distance between the second hole and the open groove is small, the lock can be easily fastened to the first lock fastening part and the second lock fastening part even if the width of the locking ring of the lock is small.

[0082] Continuing, referring to FIGS. 7 and 8, the locking plate (710) may have an insertion groove (710a) formed therein for inserting a first lock fastening part formed in the first fixing part when the cable box (510) is closed.

[0083] Meanwhile, when the pad transformer according to the present invention is fastened with the aforementioned lock (800), the locking ring of the lock can be fastened through the first hole formed in the first lock fastening part, through the second hole formed in the second lock fastening part, and through the open groove of the second lock fastening part.

[0084] As described above, in a pad transformer of a general structure, the front part of the cable box and the front part of the support frame are not aligned in the height direction, and the front part of the cable box protrudes further forward than the front part of the support frame.

[0085] As a result, the cable box has a problem in that its volume becomes unnecessarily large by the amount of the front portion of the cable box that protrudes more than the front portion of the support frame.

[0086] However, in the present invention, the support frame (520) includes a recess (522) formed in the inner direction of the support frame with respect to the front surface of the front plate, and since the first fixing part (600) is positioned in the inner space of the recess, the front part of the cable box and the front part of the support frame can be positioned on the same line in the height direction, and thus, a pad transformer including a cable box locking device that can reduce the volume of the cable box can be provided.

[0087] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

Claims

Claim 1 A transformer housing; a cable box coupled to the front of the transformer housing; a support frame located at the lower front of the transformer housing; and a locking device portion for connecting the cable box and the support frame to each other, wherein the locking device portion includes a first fixing portion disposed in a certain area of ​​the support frame; and a second fixing portion disposed in a certain area of ​​the cable box, wherein the support frame includes a front plate of the support frame; and a recess formed inwardly in the support frame based on the front surface of the front plate, wherein the first fixing portion is disposed in the recess, wherein the recess comprises: an inner plate disposed at a position of a first depth inwardly in the support frame from the front surface of the front plate; a first longitudinal side plate for connecting one longitudinal end of the inner plate and a first area of ​​the front surface of the front plate; and a second longitudinal side plate disposed facing the first longitudinal side plate, for connecting the other longitudinal end of the inner plate and a second area of ​​the front surface of the front plate. and includes a width-direction lower plate that is arranged continuously with the length-direction first side plate (524) and the length-direction second side plate, and connects the width-direction lower end of the inner plate and a third area of ​​the front surface of the front plate, and the first fixing part includes a first lock hole located in a certain area of ​​the inner plate; and a first lock fastening part located adjacent to the first lock hole and fixed to the inner plate of the recessed part, and protruding from the inner plate in the outer direction of the support frame, and the first lock fastening part includes a first hole in which a lock is fastened, and the second fixing part includes a lock plate; an upper plate located above the height-direction of the lock plate, bent from the lock plate and protruding forward of the second fixing part; and a handle bent from the upper plate and protruding downward of the second fixing part.A pad transformer comprising: a second locking hole located in an area corresponding to the first locking hole; and a second locking part formed along the periphery of the second locking hole and protruding forward of the locking plate, wherein the second locking part comprises: a second hole formed in an area corresponding to the first hole of the first locking part; and an open groove located in an area adjacent to the second hole, and located in a second quadrant area based on the circular cross-section of the cylindrical second locking part, and wherein the locking part secures the cable box and the support frame by securing the first fixing part and the second fixing part. Claim 2 delete Claim 3 delete

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