KR102620982B1 - PC modular prefabricated house and manufacturing method of PC module - Google Patents

Abstract

The PC modular assembled house of the present invention includes a plurality of PC modules whose bottom wall, side walls, and top wall are integrally connected; A front wall and a rear wall coupled to the front and rear of the plurality of PC modules; It includes a plurality of steel wires that are inserted through the front wall, the plurality of PC modules, and the rear wall and are coupled to each other by tensioning.

Description

PC modular prefabricated house and manufacturing method of PC module {PC modular prefabricated house and manufacturing method of PC module}

The present invention relates to a PC modular assembled house and a method of manufacturing a PC module.

Currently, most buildings constructed in Korea are concrete structures or concrete structures based on steel structures.

Most of these buildings are constructed on-site, relying on skilled workers and equipment on site.

In the case of on-site construction, it is affected by various factors such as the skill level of technical personnel, environmental conditions of the site, climate change, material supply and demand status, and supervisor's capabilities, so there are differences in construction quality and construction period at each site.

Meanwhile, in recent years, industrialized construction technology based on factory production has been continuously developed, mainly in advanced countries such as the United States, Europe, and Japan, and various types of buildings are being widely applied.

In other words, the development and application of buildings that can be moved and installed like commonly used containers, manufactured in factories, and assembled on site are in full swing.

However, in the case of prefabricated buildings as described above, assembly and disassembly must be easy, and it is necessary to maintain a stable assembled state during assembly as well as secure a certain degree of structural stability.

Therefore, there is an urgent need for the development of a prefabricated building construction system that not only facilitates on-site assembly and disassembly, but also improves structural strength and stability and allows easy expansion and design structure changes as needed.

Registered Patent Publication No. 10-1681848 (registered on November 25, 2016)

The purpose of the present invention is to provide a PC modular assembled house that is easy to assemble and construct and has excellent strength, and a method of manufacturing the PC module used therein.

The PC modular assembled house of the present invention for achieving the above object includes a plurality of PC modules in which a bottom wall, both side walls, and a top wall are integrally connected; A front wall and a rear wall coupled to the front and rear of the plurality of PC modules; It includes a plurality of steel wires that are inserted through the front wall, the plurality of PC modules, and the rear wall and are coupled to each other by tensioning.

A coupling rib is formed on the rear edge of the PC module, and a coupling groove is formed on the front edge of the PC module. A packing member may be inserted and pressed between the coupling rib and the coupling groove.

A door or window may be installed on at least one of the walls on both sides of the PC module.

A plurality of key grooves may be formed on the lower surface of the bottom wall of the PC module, and a plurality of key protrusions corresponding to the plurality of key grooves may be formed on the upper surface of the upper wall of the PC module.

Two PC modular assembled houses may be installed to be spaced apart from each other, and a plurality of roof members having a plurality of key grooves formed on the lower surfaces may be mounted to span the upper surfaces of the two PC modular assembled houses.

Two PC modular assembled houses may be installed to be spaced apart from each other, and a plurality of PC modules having a plurality of key grooves formed on the lower surfaces may be mounted so as to span the upper surfaces of the two PC modular assembled houses.

The method of manufacturing a PC module for a modular assembled house of the present invention includes the steps of installing a lower keyway plate on an outer mold having front, left, right, and left side walls; Inserting assembled reinforcing bars into the outer mold and adjusting the reinforcing bar spacing with spacers; Inserting an inner mold into the assembled rebar and installing a steel wire input pipe outside the assembled rebar; Joining the window frame mold to the side wall; Pouring floor wall concrete; Installing a floor mold on the floor wall concrete; Pouring side wall and top wall concrete; Installing an upper keyway plate on the upper wall concrete; and curing the concrete.

The outer mold can be assembled by rotatably coupling the front wall mold to both side wall molds, inserting the assembly rebar, and then erecting the front wall mold.

A door frame through-hole is formed in a side wall of the outer mold, and the window frame mold has a protrusion on an inner side that is inserted into the door frame through hole to form a through hole of a shape corresponding to a door or window on the side wall of the PC module. can do.

The lower keyway plate may have a plurality of keyways forming a plurality of keyways arranged on its upper surface, and the upper keyway plate may have a plurality of keyways forming a plurality of keyways arranged on its lower surface.

According to the PC modular assembled house of the present invention described above, assembly and construction are easy and the strength is very excellent.

In addition, according to the manufacturing method of the PC module for a modular assembled house of the present invention, a PC module that is easy to manufacture and assemble and has excellent strength can be easily and accurately manufactured.

Figure 1 is an exploded perspective view showing a PC modular assembled house according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing a PC module according to an embodiment of the present invention.
Figure 3 is a side view showing a PC modular assembled house according to an embodiment of the present invention.
Figure 4 is a perspective view showing a PC modular assembled house according to another embodiment of the present invention.
Figure 5 is a partial cross-sectional view showing the connection area between the PC module and the roof member.
Figure 6 is a perspective view showing a PC modular assembled house according to another embodiment of the present invention.
Figure 7 is a partially exploded perspective view showing a mold assembly for manufacturing a PC module.
Figure 8 is a partial assembly perspective view showing a mold assembly for manufacturing a PC module.
Figure 9 is a view showing various shapes of window frame molds and the second side wall of a PC module manufactured accordingly.
Figure 10 is a partially exploded perspective view showing a mold assembly for manufacturing a PC module.
Figure 11 is an exploded perspective view showing a mold assembly for manufacturing a PC module.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be exemplified and explained in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as 'include' or 'have' are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. At this time, note that in the attached drawings, like components are indicated by the same symbols whenever possible. Additionally, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some components are exaggerated, omitted, or schematically shown in the accompanying drawings.

Figure 1 is an exploded perspective view showing a PC modular assembled house according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing a PC module according to an embodiment of the present invention, and Figure 3 is a PC module according to an embodiment of the present invention. This is a side view showing a PC modular assembled house.

The PC modular assembled house (10) of the present invention includes a plurality of PC modules (100) in which the bottom wall (110), the side walls (120, 130), and the top wall (140) are integrally connected, the front surfaces of the plurality of PC modules, and It includes a front wall 230 and a rear wall 240 coupled to the rear, a plurality of steel wires 200 inserted through the front wall, a plurality of PC modules, and the rear wall, and tensioned to couple them.

As shown in FIG. 2, the PC module 100 is a precast concrete module, and reinforcing bars 170 may be arranged to cross each other inside the concrete. The PC module 100 may have a substantially rectangular box shape in which the bottom wall 110, the first side wall 120, the second side wall 130, and the top wall 140 are integrally connected. The front and back sides of the PC module 100 are formed in an open state, and a plurality of PC modules 100 can be combined with each other.

The front wall 230 may be coupled to the front of the plurality of PC modules 100, and the rear wall 240 may be coupled to the rear of the plurality of PC modules 100. A large window or door may be installed on the front wall 230, and a door or window may also be installed on the rear wall 240.

The plurality of steel wires 200 are inserted through parts close to the vertices of the front wall 230, the plurality of PC modules 100, and the rear wall 240, and after being tensioned by the hydraulic tensioner 210, each steel wire It can be fixed by fastening nuts 220 to both ends of (200).

As shown in FIG. 2, the PC module 100 may be provided with a plurality of steel wire inlets 150 inside the four vertices. Four steel wire inlet holes 150 may be formed near the four vertices, but only two may be formed near the two upper vertices. Of course, a steel wire inlet may also be provided inside the vertices of the front wall 230 and the rear wall 240.

In particular, the two upper steel wire inlets 150 may have thick inner corners of the PC module 100. Therefore, the ceiling surfaces of the two steel wire inlets 150 may be formed to be inclined, and the reinforcing bars 170 may be arranged to surround the steel wire inlets 150. By configuring in this way, the structural strength of the plurality of PC modules 100 coupled by the plurality of steel wires 200 can be strengthened.

As shown in the enlarged view of FIG. 1, a coupling rib 160 is formed on the rear edge of the PC module 100, and a coupling groove 162 is formed on the front edge of the PC module 100. A packing member 165 may be inserted and pressed between the rib 160 and the coupling groove 162.

The coupling rib 160 and the coupling groove 162 may be formed in a square shape along the edge of the PC module 100. The coupling rib 160 and the coupling groove 162 are formed in a trapezoidal cross-section, but the protruding height of the coupling rib 160 may be formed to be smaller than that of the coupling groove 162. Accordingly, the coupling rib 160 can be easily inserted into the coupling groove 162.

The packing member 165 may be made of a material that can be elastically compressed, such as rubber. The packing member 165 can be inserted into the coupling groove 162, applied with waterproof cream, and then inserted into the coupling groove 162 to couple the coupling rib 160.

As shown in Figure 3, a coupling rib is also formed on the rear side of the front wall 230, so that it can be inserted and mounted into the coupling groove 162 of the PC module 100. In addition, a coupling groove is formed on the front edge of the rear wall 240, so that the coupling rib 160 of the PC module 100 can be inserted and mounted. The coupling rib of the front wall 230 and the coupling groove of the rear wall 240 have a trapezoidal cross-section rather than a rectangular shape, so they can be easily coupled to the PC module 100.

As shown in FIG. 1, an entrance door 132 or a window 134 may be installed on at least one of the walls on both sides of the PC module 100. Figure 1 shows an embodiment in which a door 132 or a window 134 is installed on the second side wall 130. Of course, a door or window may also be installed on the first side wall 120. The door 132 and the window 134 may be installed in various locations and of various sizes.

As shown in FIG. 1, a plurality of key grooves 115 are formed on the lower surface of the bottom wall 110 of the PC module 100, and a plurality of key grooves 115 are formed on the upper surface of the upper wall 140 of the PC module 100. A plurality of key protrusions 145 corresponding to 115) may be formed.

The plurality of key grooves 115 and key protrusions 145 are formed in the shape of a truncated cone and may be arranged at regular intervals. The plurality of key grooves 115 and the plurality of key protrusions 145 have the same shape and are arranged identically, so that other PC modules 100 can be stacked on the upper surface of one PC module 100 and combined into a multi-layer structure. You can. At this time, relative movement in the horizontal direction is limited by the plurality of key grooves 115 and key protrusions 145, so that the PC modules 100 can be firmly coupled in the vertical direction.

In addition, a plurality of towing hooks 190 may be provided on the upper surface of the PC module 100. The tow hook 190 may be coupled with its lower end pre-embedded when manufacturing the PC module 100, or may be coupled by driving an anchor bolt after manufacturing the PC module 100. Four towing hooks 190 may be provided near the vertices on the upper surface of the PC module 100. The work of assembling the PC module 100 by lifting it and moving it with a crane can be easily performed using a plurality of towing hooks 190.

Figure 4 is a perspective view showing a PC modular assembled house according to another embodiment of the present invention, and Figure 5 is a partial cross-sectional view showing a coupling portion between a PC module and a roof member.

As shown in FIG. 4, the PC modular assembled house 10 of this embodiment is installed with the two PC modular assembled houses described above spaced apart from each other, and includes a plurality of roof members 250 with a plurality of key grooves 252 formed on the lower surface. Can be mounted to span the top of a two PC modular prefabricated home.

A PC modular assembled house may be assembled by combining a plurality of PC modules 100 with a plurality of steel wires 200. The two PC modular assembled houses may be arranged to be spaced apart from each other by a predetermined distance, and a plurality of roof members 250 may be installed to span the upper surfaces of the two PC modular assembled houses.

The roof member 250 is also a PC semi-finished product pre-manufactured from reinforced concrete, and a plurality of key grooves 252 corresponding to a plurality of key protrusions 145 may be formed on the lower surface. Two PC modular assembled houses can be arranged so that the distance between the plurality of key protrusions 145 matches the distance between the plurality of key grooves 252.

Figure 6 is a perspective view showing a PC modular assembled house according to another embodiment of the present invention.

In the PC modular assembled house 10 of this embodiment, the two PC modular assembled houses described above are installed to be spaced apart from each other, and a plurality of PC modules 100 with a plurality of key grooves 115 formed on the lower surfaces of the two PC modular assembled houses. It can be mounted to span the upper surface.

For example, by assembling four PC modules 100 on the first floor, two PC modular assembled houses can be placed spaced apart. A PC staircase 270 may be combined between two PC modular prefabricated homes.

A PC modular assembled house constructed by assembling three PC modules 100 may be mounted on the upper surface of the two PC modular assembled houses. At this time, the key groove 115 on the bottom of the PC module 100 on the second floor may be installed to be coupled to the key protrusion 145 on the upper surface of the PC module 100 on the first floor.

A pair of PC modules 100 may be installed on both sides of the three PC modules 100 on the second floor and on the upper surfaces of the four PC modules 100 on the first floor. This pair of PC modules 100 may be arranged in a vertical direction with respect to the other PC modules 100.

Although omitted in Figure 6, it goes without saying that the front wall 230 and the rear wall 240 described above can be combined with a plurality of PC modules 100.

Figure 7 is a partially exploded perspective view showing a mold assembly for manufacturing a PC module, Figure 8 is a partially assembled perspective view showing a mold assembly for manufacturing a PC module, and Figure 9 is a partial exploded perspective view showing the mold assembly for manufacturing a PC module, and Figure 9 shows various shapes of window frame molds and PC modules manufactured accordingly. It is a drawing showing the second side wall, Figure 10 is a partially exploded perspective view showing the mold assembly for manufacturing the PC module, and Figure 11 is a fully exploded perspective view showing the mold assembly for manufacturing the PC module.

A method of manufacturing a PC module according to the present invention will be described with reference to the drawings.

The manufacturing method of the PC module 100 according to the present invention includes the steps of installing the lower keyway plate 360 on the outer mold 310 having front, left, right, and left side walls, and installing assembly reinforcement 330 inside the outer mold 310. Step of inserting and adjusting the spacing of the reinforcement with a spacer, inserting the inner mold 320 inside the assembly reinforcement 330, installing the steel wire input pipe 350 on the outside of the assembly reinforcement 330, window frame mold 340 ) to the side wall, pouring bottom wall concrete, installing floor mold 370 on bottom wall concrete, pouring side wall and top wall concrete, upper keyway plate ( 380), and curing the concrete.

First, as shown in FIGS. 7 and 8, the mold assembly 300 for manufacturing the PC module 100 includes an outer mold 310 having front, rear, left and right side walls, and an inner mold having left and right side walls and a top wall. (320), a plurality of steel wire input pipes 350 inserted and disposed between the inner mold 320 and the outer mold 310, and a pair of window frame molds coupled to the outside of the left and right side walls of the outer mold 310. It may include (340).

In addition, as shown in FIGS. 10 and 11, the mold assembly 300 includes a lower keyway plate 360 coupled to the bottom of the outer mold 310, a floor mold 370 installed on the bottom wall concrete, and It may further include an upper keyway plate 380 coupled to the top of the outer mold 310.

In the outer mold 310, the left and right side wall molds are vertically connected to both corners of the rear wall mold, and the front wall mold 312 can be rotatably coupled to the both side wall molds. The inner mold 320 can be inserted while the front wall mold 312 is rotated horizontally.

The front wall mold 312 and the rear wall mold are formed so that the inside of the edge portion is open, and a plurality of through holes into which the steel wire input pipe 350 can be inserted can be formed, respectively.

A door frame through-hole 315 for forming an entrance door 132 or a window 134 may be formed in the mold on both sides.

The inner mold 320 may have left and right side walls and a top wall integrated into it. The outer mold 310 and the inner mold 320 may be formed of a metal plate. The upper wall of the inner mold 320 may not be a flat plate, but may be formed in a shape in which a horizontal plane and both sides of the plane are connected by an inclined plane.

The plurality of steel wire input pipes 350 are circular pipes with an inner diameter larger than the outer diameter of the steel wire 200, and two or four may be installed on the rear wall of the outer mold 310 near the apex of the mold.

A pair of window frame molds 340 may be coupled to the outside of the left and right side walls of the outer mold 310 by a plurality of bolts 345. The window frame mold 340 may have a protrusion 342 inserted into the door frame through-hole 315 on its inner surface.

As shown in FIG. 7, a door frame through-hole 315 having a certain size and shape is formed in the side wall mold of the outer mold 310, and this door frame through-hole 315 is formed in the door frame 132 having various sizes and shapes. ) or may be formed larger than the window 134. As shown in FIG. 9, the inner surface of the window frame mold 340 has a door frame penetration hole 315 corresponding to the shape of the door 132 or window 134 to be formed on the side wall 130 of the PC module 100. A protrusion 342 inserted into may be formed. Therefore, a through hole into which a door frame or window frame is substantially mounted by the protrusion 342 may be formed on the side wall of the PC module 100. Accordingly, a window frame mold having a protrusion 342 that forms a door frame or window frame through hole for mounting various types of doors or windows such as entrance doors, large windows, medium-sized windows, small windows, bathroom windows, kitchen windows, etc. (340) can be prepared in advance.

As shown in FIGS. 10 and 11, the lower keyway plate 360 may be coupled to the open lower surface of the outer mold 310. A plurality of key protrusions forming a plurality of key grooves 115 may be formed on the upper surface of the lower key groove plate 360. The drawing shows that the key projections are arranged in two rows and four columns as an example, but the number and arrangement of the key projections are not limited thereto.

The floor mold 370 can be combined to cover the concrete after assembling the lower keyway plate 360 and pouring concrete. Since the bottom mold 370 is disposed on the inner bottom side of the inner mold 320, it can be formed to be smaller than the inner mold 320.

The upper keyway plate 380 may be coupled along the upper edge of the outer mold 310. A plurality of key grooves forming a plurality of key protrusions 145 may be formed on the lower surface of the upper key groove plate 380. The plurality of keyways may be arranged in sizes and shapes corresponding to the plurality of key projections of the lower keyway plate 360.

The keyway of the lower keyway plate 360 and the keyway of the upper keyway plate 380 can be formed only in areas of the PC module 100 where the keyway and keyway are required. That is, the key projection of the lower keyway plate 360 and the keyway of the upper keyway plate 380 are formed only on a part of the surface rather than the entire surface, or if the keyway is not needed, the flat plate is formed on the lower keyway plate 360 and the upper keyway plate 380. It can also be used as.

The assembled reinforcing bars 330 inserted and disposed between the inner mold 320 and the outer mold 310 may be composed of a plurality of vertical reinforcing bars and a plurality of bent horizontal reinforcing bars. The plurality of transverse reinforcing bars of the assembly reinforcing bars 330 may be bent to correspond to the outer contour surface of the inner mold 320.

A plurality of vertical reinforcing bars and a plurality of bent horizontal reinforcing bars may be welded to each other or assembled by combining them with a joining wire. Therefore, the assembled rebar 330 can be inserted and mounted between the inner mold 320 and the outer mold 310. At this time, the assembly rebar 330 can be inserted in a state in which the front wall mold 312 is rotated and lowered, and then the front wall mold 312 can be erected and coupled to both walls of the outer mold 310 for assembly.

A method of manufacturing the PC module 100 using the mold assembly 300 according to the present invention will be described in detail.

First, the mold parts constituting the mold assembly 300 are prepared by cleaning them to remove foreign substances.

Next, the lower keyway plate 360 is coupled to the bottom of both walls of the outer mold 310.

Next, the assembled rebar 330 is inserted into the outer mold 310, and the position of the assembled rebar 330 is adjusted using spacers to be mounted.

Next, the front wall mold 312 of the outer mold 310 is erected and assembled by joining it to both sides of the outer mold 310.

Next, the inner mold 320 is inserted and mounted inside the assembly rebar 330 through the opening of the front wall mold 312. Additionally, the steel wire input pipe 350 is inserted and mounted through a plurality of through holes of the outer mold 310.

Next, a pair of window frame molds 340 are coupled to the outer surfaces of the mold on both sides of the outer mold 310 using a plurality of bolts. At this time, the window frame mold 340 is formed with a protrusion 342 formed on the inner surface corresponding to a door or window to be formed on the side walls 120 and 130 of the PC module 100.

Next, concrete is poured to form the bottom wall. Before the poured concrete is cured, the floor mold 370 is installed on the concrete. The floor mold 370 ensures that the upper surface of the floor wall is cured smoothly.

Next, concrete is poured to form the side walls and top wall. At this time, concrete can be poured while being careful not to exceed the top of the outer mold 310.

Next, the upper keyway plate 380 is coupled to the outer mold 310 and installed on the poured upper wall concrete. At this time, before installing the upper keyway plate 380, the anchor nut for fastening the tow hook 190 can be fixed to be embedded in concrete.

Finally, by curing the poured concrete, the PC module 100 for a manufactured home can be manufactured. In the case of concrete curing, by covering the upper keyway plate 380 with a cover and injecting steam to cure it, a PC module 100 product with good quality can be manufactured more quickly.

Above, an embodiment of the present invention has been described, but those skilled in the art will be able to understand the addition, change, deletion or addition of components without departing from the spirit of the present invention as set forth in the claims. The present invention may be modified and changed in various ways, and this will also be included within the scope of the rights of the present invention.

10: PC Modular Prefabricated Home
100: PC module
110: Bottom wall 115: Keyway
120: first side wall
130: second side wall 132: entrance door
134: window
140: upper wall 145: key protrusion
150: Steel wire inlet
160: Coupling rib 162: Coupling groove
165: Packing member
170: rebar
180: concrete
190: Tow hook
200: steel wire
210: Hydraulic tensioner
220: nut
230: Front wall
240: Rear wall
250: roof member 252: keyway
270: PC stairs
300: Mold assembly
310: outer mold 312: front wall mold
315: Door frame through hole
320: inner mold
330: assembly rebar
340: window frame mold 342: protrusion
345: bolt
350: Steel wire input pipe
360: Lower key groove plate
370: floor mold
380: Upper keyway plate

Claims (10)

A plurality of PC modules are arranged so that the bottom wall, both side walls, and the top wall are integrally connected, and the reinforcing bars intersect each other inside the concrete;
A front wall and a rear wall coupled to the front and rear of the plurality of PC modules;
A plurality of steel wires inserted through the front wall, the plurality of PC modules, and the rear wall and coupled to each other by tensioning; and
It includes a plurality of towing hooks provided near the vertex on the upper surface of the PC module,
A coupling rib having a trapezoidal cross-section is formed on the rear edge of the PC module,
A coupling groove having a trapezoidal cross-section is formed on the front edge of the PC module,
A packing member is inserted and compressed between the coupling rib and the coupling groove,
A plurality of key grooves having a truncated cone shape are formed on the lower surface of the bottom wall of the PC module,
A PC modular assembled house, characterized in that a plurality of key protrusions having a truncated cone shape corresponding to the plurality of key grooves are formed on the upper surface of the upper wall of the PC module. delete According to paragraph 1,
A PC modular assembled house, characterized in that an entrance door or window is installed on at least one of the walls on both sides of the PC module. delete According to paragraph 1,
Two PC modular prefabricated houses are installed spaced apart from each other,
A PC modular assembled house, characterized in that a plurality of roof members having a plurality of key grooves formed on the lower surfaces are mounted so as to span the upper surfaces of the two PC modular assembled houses. According to paragraph 1,
Two PC modular prefabricated houses are installed spaced apart from each other,
A PC modular assembled house, characterized in that a plurality of PC modules having a plurality of key grooves formed on the lower surfaces are mounted so as to span the upper surfaces of the two PC modular assembled houses. Installing a lower keyway plate on the outer mold having front, left, right, and left side walls;
Inserting assembled reinforcing bars assembled by combining a plurality of vertical reinforcing bars and a plurality of bent horizontal reinforcing bars so that they intersect each other into the outer mold and adjusting the reinforcing bar spacing with spacers;
Inserting an inner mold into the assembled rebar and installing a steel wire input pipe outside the assembled rebar;
Joining the window frame mold to the side wall;
Pouring floor wall concrete;
Installing a floor mold on the floor wall concrete;
Pouring side wall and top wall concrete;
Installing an upper keyway plate on the upper wall concrete; and
Including the step of curing concrete,
The outer mold has a front wall mold rotatably coupled to both side wall molds, and is assembled by inserting the assembly rebar and then standing up the front wall mold,
The lower keyway plate has a plurality of key protrusions arranged on its upper surface to form a plurality of keyways in the shape of a truncated cone,
A method of manufacturing a PC module, characterized in that the upper keyway plate has a plurality of keyways arranged on the lower surface to form a plurality of key protrusions in the shape of a truncated cone. delete In clause 7,
A door frame through hole is formed in the side wall of the outer mold,
A method of manufacturing a PC module, characterized in that the window frame mold has a protrusion on an inner surface that is inserted into the door frame through-hole to form a through-hole in a shape corresponding to a door or window on a side wall of the PC module. delete

Images