KR20010028786A - box to be framed - Google Patents

Abstract

PURPOSE: An assembly body is provided in which plastic injection molds for forming top and bottom walls are combined with a base plate at the top and bottom of the base plate to construct the body with a simple manual operation without using a welding process. CONSTITUTION: A body is assembled in such a manner that plastic injection molds(21) for forming top and bottom walls(22) is close-fit to the top and bottom of a base plate(41) that is bent to form a back side wall(13), left and right side walls(12). The mold has a joint groove(23) for being combined with the top and bottom of the base plate. The base plate has a joint protrusion(17) at the top and bottom for being jointed with the molds.

Description

Prefabricated Enclosure {box to be framed}

The present invention relates to an enclosure in which an electric switchboard or a signal control panel is built, and more particularly, a plastic injection-molded product that forms upper and lower wall surfaces at the upper and lower ends of a base plate that is bent in multiple stages and forms a rear wall and left and right wall surfaces. It is composed of prefabricated structure that forms the main body by fastening and assembly, so that it is possible to manufacture and assemble enough by simple manual work that does not require welding work, which can improve product assemblability and reduce assembly cost by simplifying the overall structure. To prefabricated enclosures.

In general, an electric power distribution enclosure in which an electric switchgear or an earth leakage breaker, etc. are built, or a controller housing in which a controller such as a street lamp and a signal lamp are built is made of steel plates in consideration of safety and self-tightness.

Fig. 1 shows a housing 101 which is conventionally exposed from a wall inside a room, and has a main body 110 that forms an opening 119 in front so that an electric switch or the like mounted therein can be operated from the front, and the main body thereof. Consists of a door 130 that is rotatably installed in the opening 119 of the 110 through the hinge 131.

As shown in FIG. 2, the main body 110 is bent in multiple stages to form a rear side wall 113 and a left and right side wall 112, and a base plate 111 coupled to an upper and lower ends of the base plate 111 to be vertically coupled. It consists of an upper and lower plates 121 forming the side wall surface 122. In addition, the front and rear walls 122 formed on the left and right side walls 112 formed by the base plate 111 and the upper and lower side walls 122 formed on the upper and lower plates 121 have a rigidity of the main body 110 and bondability with the door 130 and an appearance. For sex The bent portions 115 and 123 that are bent in a shape are formed. The bent portions 115 and 123 are directly connected to the left and right side wall surfaces 112 to form a plane forward, and bent at right angles inwardly from the front portions 116 and 124. Being made up of inner side portions 117 and 125.

In the conventional indoor exposure-type enclosure 101 configured as described above, the base plate 111 of the main body 110 is formed by bending the steel plate 111a unfolded in a developed manner as shown in FIG. The plate 121 is formed by bending the steel plate 121a as shown in FIG. 4, and the thickness, length, and width of these steel plates 111a and 121a vary depending on the application specification.

As for the steel plate 111a which comprises this base plate 111, the part B which becomes the left-right side wall surface 112 is located in the both sides of the part A which becomes the rear wall surface 113 from the center, and is bent on the outer side. A portion C and a portion D of the front portions 116 and 124 and the inner side portions 117 and 125 of the portions 115 and 123 are positioned, and each corner portion is a cutout 118. Consists of a structure in which the chamfer portion (E) for fitting the bent portion (115) (123) to each other is formed. In addition, the steel plate 121a constituting the upper and lower side plates 121 has a front side portion 116 and 124 of the bent portion 115 and 123 on one side of the portion F which becomes the upper and lower side wall surfaces 122. It consists of a structure in which the part G and the part H which become inner surface parts 117 and 125 are located.

By the way, in the conventional housing 101 as described above, when assembling the main body 110, fixing the base plate 111 and the upper and lower plates 121 formed in the multi-stage bent to each other in the coupling position and then joining the parts they contact. In order to be welded in order to make the assembly work complicated, as well as increase the number of assembling deterioration of the assembly, there is a problem that further increases the assembly cost.

5 and 6 show the indoor buried enclosure 201, which is a door frame (3) in the main body 210 having the same structure as the main body 110 of the above-described indoor exposure distribution enclosure 101. 250 is additionally mounted, and the door frame 250 is configured to rotatably open and close the door 230.

By the way, the indoor buried enclosure 201 is fastened and fixed to the door frame 250 with a screw 259 on the front of the main body 210 is embedded in the concrete wall through the hinge pin 231 to the door frame 250 Since the door 230 is mounted, it has advantages in coupling structure and exterior treatment with the concrete wall, but also has the following problems in assembling and manufacturing the door frame 250 using the steel plate.

That is, the door frame 250 has a structure in which four frame plates 251, 252, 253, 254, which are multi-stage bending up and down, left and right, are combined in a rectangular frame shape so that the parts contacting them are integrally welded. Since it must be combined with, assembling is complicated, as well as increasing the number of assembly times has the problem of increasing the assembly cost.

Accordingly, the present invention has been made in view of the above problems, and can be easily assembled and manufactured even by simple manual work that does not require welding work, thereby improving product assemblability and simplifying the overall structure. An object of the present invention is to provide a prefabricated enclosure that can be lowered.

1 is a perspective view showing a conventional indoor exposure enclosure.

Figure 2 is an exploded perspective view showing a base plate and the upper and lower plates in the conventional housing shown in FIG.

3 is a plan view of the steel plate showing a developed state of the base plate forming the main body of the conventional enclosure shown in FIG.

Figure 4 is a plan view of the steel plate showing the deployed state of the upper and lower plates forming the main body of the conventional enclosure shown in FIG.

5 is a perspective view showing a conventional indoor buried enclosure.

Figure 6 is a partial cross-sectional view showing the assembly structure of the door frame and the main body and the door shown in Figure 4;

Figure 7 is a perspective view of the indoor exposed prefabricated housing according to the first embodiment of the present invention.

8 is an exploded perspective view of the indoor exposed prefabricated enclosure shown in FIG. 7.

9 is a cross-sectional view showing a partial coupling structure of the base plate and the injection molding of the housing shown in FIGS.

10 is a partial cross-sectional view showing a coupling structure of the door and the injection molding in the enclosure shown in FIGS.

Figure 11 is a perspective view of the indoor buried prefabricated housing according to the second embodiment of the present invention.

12 is an exploded perspective view showing a main body in the indoor buried prefabricated housing shown in FIG. 11;

FIG. 13 is a partial sectional view showing a structure in which a cutout portion of the base plate and a front end portion of an injection molding are fastened in the main body shown in FIG.

14 is a perspective view showing an outdoor exposed prefabricated enclosure according to a third embodiment of the present invention.

FIG. 15 is a bottom view of the upper injection molded to the top of the base plate forming the body in the outdoor exposed prefabricated enclosure shown in FIG. 14;

Explanation of symbols on the main parts of the drawings

1, 2, 3: prefabricated housing 10, 40, 70: main body

11, 41, 71: base plate 17, 48: fastening protrusion

21, 51, 81, 82: injection molding 23: fastening groove

24, 54: step part 26, 82, 84: extension part

27, 67: pinhole 29, 69: base pin

30, 60, 90: door 31, 61: hinge pin

46: Incision 47: Slide piece

53: slide groove 55: fastening jaw

65 finish member 86 inclined surface

Prefabricated enclosure according to the present invention for achieving the above object is a multi-stage bent comprises a main body which is fastened and assembled by the injection molding forming the upper and lower side wall surface on the upper and lower ends of the base plate to form the rear and left and right side wall surface. There is a characteristic.

The prefabricated enclosure according to the present invention is provided with respective structures that can be applied to indoor exposure type used for electric distribution and the like, indoor exposure type used for indoor buried type, traffic light and street light controller, etc .;

First, in the case of the indoor exposure type prefabricated body, the injection molded product has a recessed groove formed to be coupled to the bent portion of the base plate in the longitudinal direction at the front outer edge facing the base plate, and an extension portion is formed in front of the fastening groove. One side of the part is formed with a pin hole for fastening the hinge pin of the door for opening and closing the opening of the main body, the base plate is formed in the upper and lower ends of the left and right side wall and the rear side wall projecting projections for engaging with the left and right and rear outer surface of the injection molding. Is characteristic;

And, in the case of the indoor buried prefabricated housing, the upper and lower ends of the bent portion of the base plate is formed with an incision for inserting the injection in the transverse direction from the front side, the upper and lower ends of the left and right side wall surface and the rear side wall bent in the horizontal direction of the inner side of the slide piece is formed On the left and right side and the rear outer surface of the injection molding, a slide groove is formed to be combined with the slide piece when inserted into the cutout, and a backlash preventing fastening jaw is formed to protrude into the cutout at the front end, and the upper and lower ends of the main body are formed. It has a feature that the closing member is formed in the pinhole on one side is attached to the left and right longitudinal direction centered on the opening, the door coupled to the hinge pin through the pinhole between the closing member is mounted to rotate the opening and closing the opening;

Lastly, the outdoor exposed enclosure has a characteristic structure to prevent rainwater from entering due to rain. In the basic structure of the indoor exposed enclosure, the injection molded to the upper side of the base plate is moved back and forth from the base plate. It is formed to extend to the left and right sides to protrude to the outside, the fastening groove is characterized in that the extension is formed to be coupled to the upper end of the left and right side wall surface and the rear wall surface of the base plate.

In consideration of the thickness of the base plate, each of the above-described injection moldings is preferably provided with a stepped portion at portions inserted into upper and lower ends of the left and right side wall surfaces and the rear side wall surface of the base plate.

Hereinafter, an embodiment of the present invention will be described in more detail based on the accompanying drawings.

7 and 8 show the indoor exposure type prefabricated enclosure 1 according to the first embodiment of the present invention, the enclosure 1 is an opening in the front to operate the electric switch, etc. mounted therein from the front It consists of the main body 10 which forms 19, and the door 30 which opens and closes the opening part 19 of the main body 10. As shown in FIG.

The main body 10 is bent in multiple stages and fastened to the base plate 11 forming the rear side wall 13 and the left and right side wall 12 from the upper and lower portions of the base plate 11. It consists of the injection-molded object 21 which forms the upper and lower side wall surfaces 22. As shown in FIG. In the front end of the left and right wall surface 12 formed by the base plate 11 or A bent portion 13 bent in a shape is formed. Accordingly, the deployment structure of the base plate 11 has the same shape as the structure in which only the chamfer E is omitted in the basic structure such as the steel plate 111a shown in FIG. 3.

The injection molding part 21 is formed with a recessed groove 23 for longitudinally engaging the bent portion 13 of the base plate 11 at a front outer edge facing the base plate 11. The fastening groove 23 may be formed in a structure in which only the bent portion 13 is coupled as shown, but both the upper and lower ends of the left and right wall surfaces 12 and the rear wall surfaces 13 of the base plate 11 may be coupled. It may also be formed into a structure.

As shown in FIG. 9, the fastening protrusions 17 for fastening with the left and right and rear outer surfaces of the injection molding 21 are punched at the upper and lower ends of the left and right wall surfaces 12 and the rear wall surfaces 13 of the base plate 11. It is cut through the work and formed to protrude inward. The fastening protrusion 17 is prevented from being separated in the opposite direction of the coupling direction of the injection molding 21 to be coupled as a new nail structure.

Then, in consideration of the thickness of the base plate 11 on the left and right side surfaces and the rear side surfaces of the injection molding 21, a stepped portion is inserted into the upper and lower ends of the left and right wall surfaces 12 and the rear wall surfaces 13 of the base plate 11. 24 is formed. In addition, as shown in FIG. 11, the injection molding 21 has an extension part 26 extending forward from the fastening groove 23 by the thickness of the door 30 so that the door 30 can be mounted thereon. One side of the part 26 is formed with a pinhole 27 for fastening the hinge pin 31 of the door 30 for opening and closing the opening 19 of the main body 10. At this time, the pinhole 27 may be directly coupled to the hinge pin 31, but is coupled to the hinge pin 31 through the base pin 29 having the hinge hole 28 in consideration of the firmness.

Looking at the assembly manufacturing process of the indoor exposure enclosure 1 according to the first embodiment of the present invention configured as described above are as follows.

First, the injection molding 21 is fastened and assembled at the upper and lower ends of the base plate 11 which is multi-stage bent to form the bent portion 13, the left and right side wall surfaces 12, and the rear side wall surface 13. The fastening groove 23 of the base plate 11 is inserted into the bent portion 13 of the base plate 11, and at the same time, the fastening protrusion 17 of the nail structure of the left and right side wall surface 12 and the rear side wall surface 13 is formed of the injection molding 21. The main body 10 is formed by assembling to be fastened to the left and right side surfaces and the rear side surfaces.

Then, the base pins 29 are respectively inserted into the pin holes 27 of the injection molding 21, and then the hinge pins 31 are inserted into the inner surface of the door 30 to be coupled to the hinge holes 28 of the base pins 29. In this case, the assembly of the enclosure 1 as well as the assembly of the door 30 is completed.

Therefore, the present invention eliminates the need for welding work when assembling the main body 10 and the door 30, so that the assembly of the main body 10 and the door 30 can be performed more simply than the structure of the enclosure in which the conventional welding work is required.

FIG. 11 shows the indoor buried prefabricated housing 2 according to the second embodiment of the present invention, wherein the door 60 is located in front of the opening 49 of the main body 40 including the base plate 41 and the injection molding 51. Is mounted so as to be rotatable and open and close as in the first embodiment described above.

However, as shown in FIG. 12, the injection molding 51 forming the base plate 41 and the upper and lower sides which form the bent portion 45, the left and right side wall surfaces 42, and the rear side wall surface 43 in the main body 40. Combination structure of the bar, the mounting structure of the door 60 is applied to the buried structure,

The upper and lower ends of the bent portion 45 of the base plate 41 are formed with cut portions 46 for inserting the injection-molded material 51 forming the upper and lower side wall surfaces 52 in the transverse direction from the front, and the left and right side wall surfaces 42 and The upper and lower ends of the rear side wall surface 43 are bent in the horizontal direction of the inner side of the slide piece 47, the left and right and rear outer sides of the injection molding 51 is coupled to the slide piece 47 when inserted into the cutout 46 Slide groove 53 is formed to be.

In addition, as shown in Figure 13, the slide piece 47 is formed with a plurality of fastening protrusions 48 formed of a nail structure for fastening with the slide groove 53, the front end of the injection molding 51 A triangular retrograde fastening jaw 55 for fastening inwardly of the incision 46 is formed.

In addition, the front and rear ends of the main body 40, the closing member 65 having a pinhole 67 on one side is attached in the left and right longitudinal direction with the opening 49 in the center, between the closing member 65 The door 60 coupled to the hinge pin 61 through the base pin 69 fastened to the 67 is mounted to open and close the opening 49. That is, the finishing member 65 is integrally fixed through the two side connecting plates 64 to protrude outward from the concrete wall to form a rectangular frame for mounting the door 60, through the fixing piece 65a The screw 66 is fastened to the front surface of the injection molding 51 to serve as the extension part 26 of the injection molding 21 in the above-described first embodiment.

On the other hand, the side connecting plate 64 may be screwed to the finish member 65, but may be coupled to the finish member 65 through the concave-convex structure as shown in the figure. Reference numeral 54 is a stepped portion.

Looking at the assembly manufacturing process of the indoor buried enclosure 2 according to the second embodiment of the present invention configured as described above are as follows.

First, the injection molding 51 is fastened and assembled to the upper and lower ends of the base plate 41 forming the bent portion 45, the left and right side wall surfaces 42, the rear side wall surfaces 43, the cut portions 46, and the slide pieces 47. Done. That is, in a state where the slide groove 53 of the injection molding 51 is aligned with the slide piece 47 formed on the left and right side wall surfaces 42 of the base plate 41 through the cutout portion 46, the injection molding 51 is strongly pushed backward. The slide groove 53 of the) and the slide piece 47 of the base plate 41 is to be completely coupled. At this time, the nailing structure fastening protrusion 48 of the base plate 41 is fastened to the wall surface of the slide groove 53 of the injection molding 51, and the backlash preventing fastening jaw 55 formed at the front end of the injection molding 51 has a base. By fastening to the inner surface of the cutout portion 46 formed at the bent portion 45 of the plate 41, the main body 40 is formed in a firmly coupled state.

Then, in the state in which the main body 40 is embedded indoors, the side connecting plate 64 is coupled to the finishing member 65 to form a rectangular frame, and then the injection-molded product 51 which is pulled up and down from the opening 49 of the main body 40. Fasten with a screw 66 on the front of the base, insert the base pin 69 into the pin hole 67 of the closing member 65, respectively, and then pin the inner side of the door 60 of the base pin 69 When coupled to the hinge hole 68, the assembly of the enclosure 2 together with the assembly of the door 60 is completed.

Therefore, the present invention eliminates the need for welding during assembly of the main body 40 and also eliminates the need for the manufacture of a door frame requiring welding, thereby enabling the assembly of the enclosure 2 to be more easily assembled.

FIG. 14 is a view illustrating an outdoor exposed prefabricated enclosure 3 according to a third embodiment of the present invention, in which injection moldings 81 and 83 have fastening grooves at upper and lower ends of the base plate 71 constituting the main body 70. The basic structure is inserted into and fastened from the upper and lower parts, and the door 90 is rotatably installed through the front extensions 820 (84) of the injection moldings 81 and 83 as in the first embodiment.

However, when exposed to the outdoors, the extension portion 82 of the upper injection molding 81 located at the upper end of the base plate 71 is blocked so that the inflow of rain water due to the rain as shown in FIG. As described above, the front of the door 90 is mounted, as well as the left and right sides of the base plate 90, and extends to protrude outward, and the fastening groove 85 extends to be coupled to the left and right sides of the base plate 71.

In addition, the upper surface of the upper injection molding 81 is formed with an inclined surface 86 having a downwardly inclined structure from the center to both sides. The other structure and assembly method are almost the same as in the first embodiment described above.

As described above, the present invention by forming a body by fastening and assembling the plastic injection molding forming the upper and lower side wall surface on the upper and lower ends of the base plate, it is possible to fully assemble the enclosure even by simple manual operation without the need for welding work, etc. It is possible to improve the assembly of the product as well as to simplify the overall structure it is possible to lower the assembly cost.

In addition, the present invention by using the fastening protrusion and the fastening jaw of the nail structure without the welding work can be expected a solid bondability by combining the injection molding and the base plate.

While the invention has been shown and described with respect to particular embodiments, those skilled in the art will recognize that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone can easily know.

Claims (10)

An injection-molded product which forms the upper and lower wall surfaces 22 and 52 at the upper and lower ends of the base plates 11, 41, and 71 which are multi-stage bent to form the rear wall surfaces 13, 43 and the left and right wall surfaces 12, 42. (21) (51) (81) (83) is a prefabricated housing, characterized in that it comprises a main body (10) (40) (70) to be fastened and assembled. According to claim 1, The injection molding (21) (81) (83) is a prefabricated housing, characterized in that the fastening groove (23) (85) is formed to be coupled to the upper and lower ends of the base plate (11) (71) to each. The method according to claim 1 or 2, Fastening protrusions 17 for fastening with the injection molded parts 21, 81, 83 are formed to protrude from upper and lower ends of the left and right side wall surfaces 12 and the rear side wall surfaces 13 of the base plates 11 and 71. Prefabricated enclosure. The method of claim 2, The injection moldings 21, 81, and 83 are formed with extensions 26, 82, 84 extending forward of the fastening groove 23, and the extensions 26, 82, 84 of the injection molding 21, 81, 83. Prefabricated housing, characterized in that the pinhole (27) for fastening the hinge pin (31) of the door (30) (60) for opening and closing the opening (19) of the main body (10) (70) is formed on one side. The method of claim 2, Extensions 82 of the injection molding 81 and 83 coupled to the upper side of the base plate 71 protrude outward, left and right, and the fastening groove 85 is the base plate 71. Left and right, prefabricated housing characterized in that the extension is formed to be coupled to the rear top. According to claim 1, Cut portions 46 are formed at upper and lower ends of the bent portion 45 of the base plate 41, and the upper and lower ends of the left and right side wall surfaces 42 and the rear wall surfaces 43 are formed to insert the injection molding 51 laterally from the front side. The slide piece 47 is bent in the horizontal direction of the inner side, the slide groove for engaging with the slide piece 47 when inserted into the cutout 46 on the left and right and rear outer surfaces of the injection molding 51 Prefabricated housing, characterized in that 53 is formed. The method of claim 6, A plurality of fastening protrusions 48 for fastening with the slide groove 53 are formed to protrude from the slide piece 47, and for fastening to the inside of the cutout 46 at the front end of the injection molded product 51. Prefabricated housing, characterized in that the anti-return fastening jaw 55 is formed protruding. According to claim 1, A closing member 65 having a pinhole 67 at one side is attached to the left and right in the longitudinal direction at the front and rear of the main body 40 with the opening 49 at the center through the side connecting plate 64. Prefabricated housing, characterized in that the door (60) coupled to the hinge pins (61) through the pinhole (67) is mounted to rotate the opening and closing the opening (49) between the (65). The method according to any one of claims 2 to 8, The injection moldings 21, 51, 83 are stepped in portions inserted into upper and lower ends of the left and right side wall surfaces 12 and 42 and the rear side wall surfaces 13 and 43 of the base plates 11, 41, and 71. Prefabricated housing, characterized in that the portion (24) (54) is formed. The method according to any one of claims 4 to 8, Prefabricated housing, characterized in that the pin hole (27) (67) is inserted into the base pin (29) (69) having a hinge hole (28, 68) to which the hinge pin (31) (61) is coupled.