Die for prefabricating 3D house

Abstract

The utility model relates to a mold for prefabricating a 3D house. The mold comprises an inner supporting frame, an inner mold and an outer mold. A sliding assembly is installed on the outer mold; the inner mold comprises an inner top mold and a square inner side mold, and the inner top mold is fixedly mounted at the top of the inner supporting frame; a wheel plate assembly is arranged on the outer side of the inner top mold, and a chute connecting assembly is arranged between the outer side of the stand column of the inner supporting frame and the corresponding side of the square inner side mold. According to the utility model, the sliding form removal assembly is mounted between the inner support frame and the bottom of the square inner side form, and the outer end, namely the operation end, of the sliding form removal assembly is arranged on the outer side of the outer form, so that a worker does not need to enter the inner form to remove bolts and the like, and the inner top form does not need to lift up and down; and the inner mold can be assembled in place only by rotating the pull rod of the sliding mold removal assembly through the wheel plate assembly and the chute connecting assembly without re-finishing when being used again, so that the service life of the mold is prolonged.

Description

Technical Field

[0001] This utility model relates to a mold for prefabricated 3D houses, belonging to the field of prefabricated house mold technology. Background Technology

[0002] Existing 3D houses are prefabricated in factories as pentagonal houses with four walls and a roof. They are poured using prefabricated concrete house molds. After pouring, the molds are removed entirely by the screw rods of the inner molds. The inner top mold also needs to be raised and lowered, making demolding difficult. The side molds are also prone to deformation, increasing the workload. When used again, they need to be repaired, reducing the service life of the molds.

[0003] The Chinese utility model patent, with announcement number CN216732326U, entitled "A Mold for Prefabricated Integrated Houses," describes a mold where the inner top mold, four inner side molds, and corner molds (i.e., angle steel) are all fixed to the support of the bottom mold via screw rods. During demolding, personnel enter the bottom mold and loosen the screw rods connected to the inner top mold, causing the sliding sleeve to slide downwards along the column, detaching the surface of the inner top mold from the component. Correspondingly, loosening the screw rods connected to the inner side molds causes the inner side molds to retract, detaching their surfaces from the component. In other words, both the inner top mold and the inner side molds need to be disassembled, which is costly, labor-intensive, and unsafe for personnel.

[0004] The Chinese invention application with publication number CN112796509A, entitled "A Precast House Mold Structure System", requires that all connections of the inner mold side mold and corner mold be disconnected during demolding, which is labor-intensive and time-consuming. The side mold is first pulled inward, and it is more difficult to pull the corner mold inward because the contact surface with the concrete is large. It may even require additional hammering to demold. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a mold for prefabricated 3D houses that is time-saving, labor-saving, safe and reliable for disassembling and assembling the inner mold and the outer mold.

[0006] The present invention adopts the following technical solution:

[0007] The mold for this prefabricated 3D house includes an inner support frame, an inner mold installed on the outside of the inner support frame, and an outer mold installed on the outside of the inner mold. A sliding assembly is installed on the outer mold. The inner mold includes an inner top mold and a square inner side mold located below the inner top mold. The inner top mold is fixedly installed on the top of the inner support frame. A wheel plate assembly is provided between the outer side of the inner top mold and the corresponding side of the square inner side mold. A sloping groove connecting assembly is provided between the outer side of the column of the inner support frame and the corresponding side of the square inner side mold. The sloping groove connecting assembly is located below the wheel plate assembly. A sliding demolding assembly is installed between the bottom of the inner support frame and the square inner side mold, and the outer end of the sliding demolding assembly is located on the outside of the outer mold.

[0008] This utility model's square inner mold includes a long inner mold, a wide inner mold, and a right-angled inner corner mold. Two sets of long inner molds, two sets of wide inner molds, and four sets of right-angled inner corner molds enclose a square. Wheel plate assemblies are evenly spaced between the outer sides of the bottom surface of the four sides of the inner top mold and the corresponding sides of the long, wide, and right-angled inner molds. Inclined groove connecting assemblies are evenly spaced between the outer sides of the inner support frame columns and the corresponding sides of the long, wide, and right-angled inner molds. The inclined groove connecting assemblies are arranged in upper and lower rows. Sliding demolding assemblies are evenly spaced around the bottom of the inner support frame and the corresponding sides of the long and wide inner molds. Sliding demolding assemblies are also located at the bottom of the inner support frame and on the inner corner side of each right-angled inner corner mold. Operating the outer ends of the sliding demolding assemblies sequentially drives the long, wide, and right-angled inner molds to slide diagonally downwards through the wheel plate assemblies and inclined groove connecting assemblies for demolding.

[0009] The sliding demolding assembly of this utility model includes a rectangular groove, a U-shaped lug, a pull rod, a connecting rod, a thrust ball bearing, and rollers A. The U-shaped lug is movably disposed within the rectangular groove, with its open end corresponding to the inner support frame. A rotating shaft is installed inside the open end of each roller, with both ends of the rotating shaft mounted on rollers A that roll along the bottom wall of the rectangular groove. One end of the connecting rod is hinged to the rotating shaft and positioned between the two rollers A. The other end of the connecting rod, with a gap between the long inner mold and the wide inner mold, passes through the end plates of the rectangular groove and the U-shaped lug, corresponding to the rotating shaft. There is a gap between the end of the pull rod and the rotating shaft. The thrust ball bearings are installed on the inner and outer sides of the end plate of the U-shaped lug, respectively, and both thrust ball bearings are mounted on the pull rod. On the outside, nut A is fixedly installed on the outer side of the thrust ball bearing, and nut B is fixedly installed on the outer side of the rectangular groove end plate. Nut A is fixed to the tie rod, and nut B is threadedly connected to the tie rod. The other end of the tie rod is set on the outer side of the outer mold. Nut C is fitted on the end of the tie rod corresponding to the rotating shaft. Nut C and the tie rod are connected by a pin passing through it. Nut D is fixedly installed on the outer end of the tie rod. Rotating nut D causes the tie rod to rotate inward or outward. The two thrust ball bearings bear the axial load. The tie rod drives the U-shaped lug to move inward or outward in the rectangular groove and drives the roller A to roll in the rectangular groove. This causes the connecting rod to drive the long inner mold, wide inner mold, and right-angle inner mold to slide obliquely downward or obliquely upward through the wheel plate assembly and the inclined groove connecting assembly for demolding or mold closing.

[0010] This utility model wheel plate assembly includes a support, a track inclined plate, a roller support, and rollers B. The support is installed laterally at intervals on the outer side of the bottom frame of the inner top mold. The track inclined plate is fixedly installed on the outer end of the support. The track inclined plate is inclined from top to bottom towards the inner side of the inner top mold. The roller support is fixedly installed on the inner side of the top of the long inner mold, wide inner mold, or right-angle inner mold. Rollers B are rotatably installed on the roller support. The rollers B correspond one-to-one with the track inclined plate and are in rolling contact.

[0011] This utility model's inclined groove connection assembly includes a U-shaped inclined groove support, an inclined groove inclinedly disposed on the U-shaped inclined groove support, and a guide rod; the angle between the inclined groove and the horizontal plane is 40-60°; the U-shaped inclined groove support is fixedly installed at intervals on the inner sidewalls of the long inner mold and the wide inner mold, and the U-shaped inclined groove support is installed at the inner corner of the right-angle inner mold; a guide rod support is horizontally installed on the outer side of the column corresponding to the U-shaped inclined groove support, and the guide rod is horizontally and vertically installed at the end of the guide rod support; the corresponding gaps at both ends of the guide rod are disposed in the inclined groove; when the sliding demolding assembly drives the long inner mold, the wide inner mold, or the right-angle inner mold to demold inward, the roller B rolls obliquely downward along the inclined plate of the track, and the U-shaped inclined groove support slides obliquely downward along the guide rod through the inclined groove.

[0012] This utility model's outer mold includes two sets of long side molds and two sets of wide side molds. An overhang is provided on the top outer side of the wide side molds. Tie rods are installed at intervals on the top of each set of long side molds. Tie rods are installed between the corresponding tie rods of the two sets of long side molds by bolts. Sleeves A are fixedly installed horizontally from top to bottom on the outer side of the long side molds. A threaded tie hook is provided at the end of the sleeve A through the gap. A square sleeve B corresponding to sleeve A is installed on the side of the wide side molds. A connecting sleeve C with a through hole is inserted into the square sleeve B through the gap. The threaded end of the tie hook passes through the through hole and is fixed with a nut. The two sets of long side molds and the two sets of wide side molds are connected to form a square shape.

[0013] This utility model's sliding assembly includes a guide rail installed on the outer side of the bottom of the inner support frame, triangular support frames spaced apart on the outer side walls of the long or wide side mold corresponding to the guide rail, and track wheels rotatably installed at the bottom of the triangular support frames; the triangular support frames drive the long or wide side mold to move on the guide rail via the track wheels for demolding or mold closing; an anti-tipping component is provided on the outer side of the bottom of the triangular support frames; two triangular support frames are spaced apart on the outer side of each set of long or wide side molds.

[0014] The anti-tipping assembly of this utility model includes an inclined support plate installed on the outside of the bottom beam of the triangular support frame and an anti-tipping wheel rotatably installed at the end of the inclined support plate, wherein the anti-tipping wheel rotates in the guide rail side groove.

[0015] The positive effects of this utility model are as follows: This utility model installs a sliding demolding assembly between the inner support frame and the bottom of the square inner mold. The outer end of the sliding demolding assembly, i.e. the operating end, is located on the outside of the outer mold. The mold can be demolded without workers entering the inner mold to remove bolts or perform other operations. Furthermore, the inner top mold does not need to be raised or lowered, saving time and effort. When used again, it does not need to be repaired. Simply rotate the pull rod of the sliding demolding assembly to close the inner mold in place through the wheel plate assembly and the inclined groove connection assembly. This increases the service life of the mold without the need for other maintenance. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Appendix Figure 2 This is a schematic diagram of the inner mold structure of this utility model;

[0018] Appendix Figure 3 This is a schematic diagram of the internal support frame structure of this utility model;

[0019] Appendix Figure 4 This is a schematic diagram of the sliding demolding assembly structure of this utility model;

[0020] Appendix Figure 5 This is a schematic diagram of the U-shaped lug and pull rod installation structure of this utility model;

[0021] Appendix Figure 6 This is a front view schematic diagram of the U-shaped lug and pull rod installation structure of this utility model;

[0022] Appendix Figure 7 This is a schematic diagram of the installation structure of the inner mold and the inner top mold of this utility model;

[0023] Appendix Figure 8 For the appendix Figure 7 A schematic diagram of the enlarged structure of part D;

[0024] Appendix Figure 9 This is a schematic diagram of the inner top mold structure of this utility model;

[0025] Appendix Figure 10 This is a schematic diagram of the isometric structure of the internal support frame and the long inner mold of this utility model.

[0026] Appendix Figure 11 For the appendix Figure 10 A magnified structural diagram of part E;

[0027] Appendix Figure 12 This is a schematic diagram of the long inner mold structure of this utility model;

[0028] Appendix Figure 13 This is a schematic diagram of the right-angle interior angle mold structure of this utility model;

[0029] Appendix Figure 14 For the appendix Figure 1 A magnified structural diagram of part A;

[0030] Appendix Figure 15 For the appendix Figure 1 A schematic diagram of the enlarged structure of part B;

[0031] Appendix Figure 16 For the appendix Figure 3 A magnified structural diagram of part C. Detailed Implementation

[0032] Example 1:

[0033] As attached Figure 1 ,2 As shown in Figures 1 and 3, this utility model includes an inner support frame 1, an inner mold installed on the outside of the inner support frame 1, and an outer mold installed on the outside of the inner mold; a sliding component is installed on the outer mold.

[0034] The inner mold includes an inner top mold 21 and a square inner side mold disposed below the inner top mold 21. The inner top mold 21 is fixedly installed on the top of the inner support frame 1. A wheel plate assembly is disposed between the outer side of the inner top mold 21 and the corresponding side of the square inner side mold. A sloping groove connecting assembly is disposed between the outer side of the column 11 of the inner support frame 1 and the corresponding side of the square inner side mold. The sloping groove connecting assembly is located below the wheel plate assembly. A sliding demolding assembly is installed between the inner support frame 1 and the bottom of the square inner side mold. The outer end of the sliding demolding assembly, i.e., the operating end, is disposed on the outer side of the outer mold. In this invention, the square inner side mold can be demolded or closed by operating the sliding demolding assembly from the outside, without the need to demold or close the inner top mold 21.

[0035] As attached Figure 2 , 9 As shown in Figures 12 and 13, the square inner mold of this utility model includes a long inner mold 22, a wide inner mold 23, and a right-angled inner corner mold 24. Two sets of long inner molds 22, two sets of wide inner molds 23, and four sets of right-angled inner corner molds 24 enclose a square. The wheel plate assemblies are evenly spaced between the outer sides of the bottom surface of the four sides of the inner top mold 21, corresponding to the sides of the long inner mold 22, wide inner mold 23, and right-angled inner corner molds 24. The outer sides of the inner support frame 1 columns, corresponding to the sides of the long inner mold 22, wide inner mold 23, and right-angled inner corner molds 24... The inclined groove connecting components are evenly spaced; the inclined groove connecting components are arranged in upper and lower rows; the sliding demolding components are evenly spaced between the sides corresponding to the long inner mold 22 and the wide inner mold 23 on the bottom perimeter of the inner support frame 1; the sliding demolding components are arranged at the bottom of the inner support frame 1 and the inner corner side of each right-angle inner mold 24; by operating the outer end of the sliding demolding components, the long inner mold 22, the wide inner mold 23 and the right-angle inner mold 24 are sequentially moved diagonally downwards through the wheel plate assembly and the inclined groove connecting components to demold.

[0036] As attached Figure 1 , 3As shown in Figures 4, 5, and 6, the sliding demolding assembly of this utility model includes a rectangular groove 31, a U-shaped lug 32, a pull rod 33, a connecting rod 34, a thrust ball bearing 36, and rollers A37. The U-shaped lug 32 is movably disposed within the rectangular groove 31, with its open end corresponding to the inner support frame 1, i.e., the open end of the U-shaped lug 32 faces the inner support frame 1. A rotating shaft 38 is installed inside the open end of the roller 37, and both ends of the rotating shaft 38 are respectively installed on the rollers A37 that roll along the bottom wall within the rectangular groove 31. One end of the connecting rod 34 is hinged to the rotating shaft 38 and disposed between the two rollers A37, and the other end of the connecting rod 34 is connected to the long inner mold. 22. The inner mold lugs 42 on the corresponding side walls of the wide inner mold 23 or the right-angle inner mold 24 are hinged; one end of the pull rod 33 passes through the end plate of the rectangular groove 31 and the U-shaped lug 32 and corresponds to the rotating shaft 38 (one end of the pull rod 33 and the rotating shaft 38 are spaced apart). The thrust ball bearings 36 are installed on the inner and outer sides of the end plate of the U-shaped lug 32 respectively. Both thrust ball bearings 36 are fitted on the pull rod 33. Nut A35 is fixedly installed on the outer side of the outer thrust ball bearing 36. Nut B39 is fixedly installed on the outer side of the end plate of the rectangular groove 31. Nut A35 is fixed to the pull rod 33 (that is, nut A35 is threaded to the pull rod 33 and then welded to fix it). Nut B39 is fixed to the outer side of the end plate of the rectangular groove 31. 39 is threaded to the tie rod 33; the other end of the tie rod 33 is set on the outside of the outer mold; the end of the tie rod 33 corresponding to the rotating shaft 38 is fitted with a nut C40, and the nut C40 and the tie rod 33 are connected by a pin passing through it. A nut D41 is fixedly installed on the outer end of the tie rod 33; rotating the nut D41 drives the tie rod 33 to rotate inward or outward, and the two thrust ball bearings 36 bear the axial load. The tie rod 33 drives the U-shaped ear seat 32 to move in the rectangular groove 31 and drives the roller A37 to roll in the rectangular groove 31, so that the connecting rod 34 drives the long inner mold 22, the wide inner mold 23 and the right-angle inner mold 24 to slide obliquely downward or obliquely upward through the wheel plate assembly and the inclined groove connecting assembly to demold or close the mold, which saves time and effort.

[0037] As attached Figure 7-10 As shown, the wheel plate assembly of this utility model includes a support 51, a track inclined plate 52, a roller support 53, and a roller B54; the support 51 is horizontally spaced and installed on the outer side of the bottom frame of the inner top mold 21, and the track inclined plate 52 is fixedly installed on the outer end of the support 51; the track inclined plate 52 is inclined from top to bottom towards the inner side of the inner top mold 21; the wheel plate assembly can play a guiding role, making the opening and closing of the inner mold smoother.

[0038] The roller support 53 is fixedly installed on the inner top of the long inner mold 22, the wide inner mold 23, or the right-angle inner mold 24. The roller B54 is rotatably installed on the roller support 53. The roller B54 corresponds one-to-one with the inclined rail 52 and makes rolling contact. When disassembling and assembling the mold, the roller B54 rolls along the inclined rail 52, which serves as a guide.

[0039] As attached Figure 7 , 10 As shown in Figures 11, 12, and 13, the inclined groove connecting assembly of this utility model includes a U-shaped inclined groove support 61, an inclined groove 62 inclinedly disposed on the U-shaped inclined groove support 61, and a guide rod 63; the angle between the inclined groove 62 and the horizontal plane is 40-60° (this angle setting allows the horizontal and vertical displacements to be adjusted according to actual conditions); the U-shaped inclined groove support 61 is fixedly installed at intervals on the inner sidewalls of the long inner mold 22 and the wide inner mold 23, and the U-shaped inclined groove is installed at the inner corner of the right-angle inner mold 24. Support 61; a guide rod support 64 is horizontally installed on the outer side of the column 11 corresponding to the U-shaped inclined groove support 61, and the guide rod 63 is horizontally and vertically installed at the end of the guide rod support 64; the corresponding gaps at both ends of the guide rod 63 are set in the inclined groove 62; when the sliding demolding assembly drives the long inner mold 22, the wide inner mold 23 or the right-angle inner mold 24 to demold inward, the roller B54 rolls obliquely downward along the inclined plate 52 of the track, and the U-shaped inclined groove support 61 slides obliquely downward along the guide rod 63 through the inclined groove 62, so that the track can slide.

[0040] As attached Figure 1 , 14 As shown, the outer mold of this utility model includes two sets of long side molds 701 and two sets of wide side molds 702. An eave 700 is provided on the outer side of the top of the wide side mold. Tie rods 703 are installed at intervals on the top of each set of long side molds 701. Tie rods 704 are installed between the corresponding tie rods 703 of the two sets of long side molds 701 by bolts. The wide side molds are clamped together to prevent mold bulging. The tie rods 704 are disassembled when the mold is disassembled.

[0041] Sleeves A705 are fixedly installed horizontally from top to bottom on the outer side of the long side mold 701. A threaded pull hook 706 is provided at the end of the sleeve A705 through the gap. A square sleeve B707 corresponding to sleeve A705 is installed on the side of the wide side mold 702. A connecting sleeve C708 with a through hole is provided at the outer end of the square sleeve B707 through the gap. The threaded end of the pull hook 706 passes through the through hole and is fixed with a nut. The two sets of long side molds 701 and the two sets of wide side molds 702 are connected in a square shape; the connection and disassembly are convenient.

[0042] As attached Figure 1 , 3 As shown in Figure 15, the sliding assembly of this utility model includes a guide rail 709 installed on the outer side of the bottom of the inner support frame 1, a triangular support frame 710 installed at intervals on the outer wall of the long side mold 701 or the wide side mold 702 corresponding to the guide rail 709, and a track wheel 711 rotatably installed on the bottom of the triangular support frame 710; the triangular support frame 710 drives the long side mold 701 or the wide side mold 702 to move on the guide rail 709 through the track wheel 711, making pushing and pulling convenient.

[0043] Example 2:

[0044] The difference between this embodiment and Embodiment 1 is as follows: (See attached diagram) Figure 1 , 3 As shown in Figure 15, the present invention provides an anti-tipping component on the outer side of the bottom of the triangular support frame 710; two triangular support frames 710 are installed at intervals on the outer side of each group of long side molds 701 or wide side molds 702.

[0045] The anti-tipping assembly includes an inclined support plate 712 installed on the outside of the bottom beam of the triangular support frame 710 and an anti-tipping wheel 713 rotatably installed at the end of the inclined support plate 712. The anti-tipping wheel 713 rotates in the side groove of the guide rail 709. The triangular support frame 710 drives the long side mold 701 or the wide side mold 702 to travel on the guide rail 709 via the track wheel 711. The anti-tipping assembly prevents the triangular support frame 710 from derailing, that is, prevents the long side mold 701 or the wide side mold from tipping over.

[0046] Example 3:

[0047] The difference between this embodiment and Embodiments 1 and 2 is as follows: (See attached diagram) Figure 1 , 3 As shown in Figure 16, a connecting plate A714 is fixedly installed at the end of the guide rail 709 corresponding to the inner support frame 1, and a connecting plate B101 corresponding to the connecting plate A714 is installed on the outer side of the bottom of the inner support frame 1. Bolts and nuts are installed in the elongated holes corresponding to the connecting plate A714 and the connecting plate B101 to facilitate the adjustment, disassembly and installation of the guide rail 709.

[0048] When the inner mold is disassembled or assembled, rotating the nut D41 on the outside of the sliding mold disassembly assembly drives the pull rod 33 to rotate inward. The two thrust ball bearings 36 bear the axial load. The pull rod 33 drives the U-shaped lug 32 to move inward in the rectangular groove 31 and drives the roller A37 to roll in the rectangular groove 31. This causes the connecting rod 34 to drive the long inner mold 22, the wide inner mold 23, and the right-angle inner mold 24 to roll along the inclined plate 52 via the roller B54. The U-shaped inclined groove support 61 slides downward along the guide rod 63 via the inclined groove 62 to disassemble. When the mold is assembled, rotating the pull rod 33 outward causes the connecting rod 34 to drive the right-angle inner mold 24 upward first, and then drive the long inner mold 22 and the wide inner mold 23 to assemble. There is no need to operate the inner top mold, which saves time and effort.

[0049] When the outer mold is disassembled or assembled, the pull screws 704 on the top of the two sets of long side molds 701 are disassembled or installed, the pull hooks 706 of the adjacent long and wide side molds are disassembled or installed, and the triangular support frame 710 is pushed and pulled to drive the long side mold 701 or the wide side mold 702 to move on the guide rail 709 through the track wheel 711, so that the long side mold 701 or the wide side mold moves away from or closer to the inner mold.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold for a prefabricated 3D house, characterized in that, It includes an inner support frame (1), an inner mold installed on the outside of the inner support frame (1), and an outer mold installed on the outside of the inner mold; a sliding assembly is installed on the outer mold; The inner mold includes an inner top mold (21) and a square inner side mold disposed below the inner top mold (21). The inner top mold (21) is fixedly installed on the top of the inner support frame (1). A wheel plate assembly is disposed between the outer side of the inner top mold (21) and the corresponding side of the square inner side mold. A sloping groove connecting assembly is disposed between the outer side of the column (11) of the inner support frame (1) and the corresponding side of the square inner side mold. The sloping groove connecting assembly is located below the wheel plate assembly. A sliding demolding assembly is installed between the inner support frame (1) and the bottom of the square inner side mold. The outer end of the sliding demolding assembly is disposed on the outer side of the outer mold.

2. The mold for a prefabricated 3D house according to claim 1, characterized in that, The square inner mold includes a long inner mold (22), a wide inner mold (23), and a right-angled inner corner mold (24). The two sets of long inner molds (22), the two sets of wide inner molds (23), and the four sets of right-angled inner corner molds (24) enclose a square. The wheel plate assembly is evenly spaced between the outer sides of the bottom surface of the four sides of the inner top mold (21) and the corresponding sides of the long inner mold (22), the wide inner mold (23) and the right-angle inner corner mold (24); The inclined groove connecting components are evenly spaced between the outer sides of the inner support frame (1) column and the corresponding sides of the long inner mold (22), wide inner mold (23) and right-angle inner mold (24); the inclined groove connecting components are arranged in upper and lower columns; The sliding demolding components are evenly spaced around the bottom of the inner support frame (1) on the sides corresponding to the long inner mold (22) and the wide inner mold (23); The sliding demolding assembly is provided at the bottom of the inner support frame (1) and at the inner corner of each right-angle inner corner mold (24); The outer end of the sliding demolding assembly sequentially drives the long inner mold (22), the wide inner mold (23), and the right-angle inner mold (24) to slide downwards through the wheel plate assembly and the inclined groove connecting assembly to demold.

3. A mold for a prefabricated 3D house according to claim 1 or 2, characterized in that, The sliding demolding assembly includes a rectangular groove (31), a U-shaped lug (32), a pull rod (33), a connecting rod (34), a thrust ball bearing (36), and a roller A (37); The U-shaped ear seat (32) is movably disposed in the rectangular groove (31), and the open end of the U-shaped ear seat (32) corresponds to the inner support frame (1); the inner side of the open end of the roller A (37) is equipped with a rotating shaft (38), and the two ends of the rotating shaft (38) are respectively installed on the roller A (37) that rolls along the bottom wall in the rectangular groove (31); one end of the connecting rod (34) is hinged to the rotating shaft (38) and disposed between the two rollers A (37), and the other end of the connecting rod (34) is hinged to the inner mold ear seat (42) on the corresponding side wall of the long inner mold (22), the wide inner mold (23) or the right-angle inner mold (24); One end of the pull rod (33) passes through the rectangular groove (31) and the end plate of the U-shaped lug (32) and corresponds to the rotating shaft (38), that is, there is a gap between the end of the pull rod (33) and the rotating shaft (38). The thrust ball bearings (36) are installed on the inner and outer sides of the end plate of the U-shaped lug (32), respectively. Both thrust ball bearings (36) are fitted on the pull rod (33). Nut A (35) is fixedly installed on the outer side of the thrust ball bearing (36), and nut B (39) is fixedly installed on the outer side of the end plate of the rectangular groove (31). Nut A (35) is fixed to the pull rod (33), and nut B (39) is threadedly connected to the pull rod (33). The other end of the pull rod (33) is set on the outer side of the outer mold. A nut C (40) is fitted onto the end of the pull rod (33) corresponding to the pivot (38). The nut C (40) and the pull rod (33) are connected by a pin that passes through it. A nut D (41) is fixedly installed on the outer end of the pull rod (33). Rotating nut D (41) causes pull rod (33) to rotate inward or outward. Two thrust ball bearings (36) bear axial load. Pull rod (33) causes U-shaped lug (32) to move inward or outward in rectangular groove (31) and causes roller A (37) to roll in rectangular groove (31). This causes connecting rod (34) to drive long inner mold (22), wide inner mold and right-angle inner mold (24) to slide obliquely downward or obliquely upward through wheel plate assembly and inclined groove connecting assembly for demolding or mold closing.

4. The mold for a prefabricated 3D house according to claim 3, characterized in that, The wheel plate assembly includes a support (51), a track sloping plate (52), a roller support (53), and a roller B (54); The support (51) is installed laterally at intervals on the outer side of the bottom frame of the inner top mold (21), and the track inclined plate (52) is fixedly installed on the outer end of the support (51); the track inclined plate (52) is inclined from top to bottom towards the inner side of the inner top mold (21); The roller support (53) is fixedly installed on the inner side of the top of the long inner mold (22), the wide inner mold (23) or the right-angle inner mold (24). The roller B (54) is rotatably installed on the roller support (53). The roller B (54) corresponds one-to-one with the track inclined plate (52) and rolls in contact.

5. The mold for a prefabricated 3D house according to claim 4, characterized in that, The inclined groove connection assembly includes a U-shaped inclined groove support (61), an inclined groove (62) inclinedly disposed on the U-shaped inclined groove support (61), and a guide rod (63); the angle between the inclined groove (62) and the horizontal plane is 40-60°. The U-shaped inclined groove support (61) is fixedly installed at intervals on the inner sidewalls of the long inner mold (22) and the wide inner mold (23), and the U-shaped inclined groove support (61) is installed at the inner corner of the right-angle inner corner mold (24); A guide rod support (64) is horizontally installed on the outside of the column (11) corresponding to the U-shaped inclined groove support (61), and the guide rod (63) is horizontally and vertically installed at the end of the guide rod support (64); the corresponding gaps at both ends of the guide rod (63) are set in the inclined groove (62); When the sliding demolding assembly drives the long inner mold (22), wide inner mold (23) or right-angle inner mold (24) to demold inward, the roller B (54) rolls obliquely downward along the track inclined plate (52), and the U-shaped inclined groove support (61) slides obliquely downward along the guide rod (63) through the inclined groove (62).

6. The mold for a prefabricated 3D house according to claim 1, characterized in that, The outer mold includes two sets of long side molds (701) and two sets of wide side molds (702). An eave (700) is provided on the outer side of the top of the wide side mold. Tie rods (703) are installed at intervals on the top of each set of long side molds (701). Tie rods (704) are installed between the corresponding tie rods (703) of the two sets of long side molds (701) by bolts. Sleeves A (705) are fixedly installed horizontally from top to bottom on the outer side of the long side mold (701). A threaded pull hook (706) is inserted through the gap of sleeve A (705). A square sleeve B (707) corresponding to sleeve A (705) is installed on the side of the wide side mold (702). A connecting sleeve C (708) with a through hole is inserted through the gap of the square sleeve B (707). After the threaded end of the pull hook (706) passes through the through hole, a nut is installed for fixation. The two sets of long side molds (701) and the two sets of wide side molds (702) are connected to form a square shape.

7. The mold for a prefabricated 3D house according to claim 6, characterized in that, The sliding assembly includes a guide rail (709) installed on the outer side of the bottom of the inner support frame (1), a triangular support frame (710) spaced apart on the outer wall of the long side mold (701) or the wide side mold (702) corresponding to the guide rail (709), and a track wheel (711) rotatably installed on the bottom of the triangular support frame (710); the triangular support frame (710) drives the long side mold (701) or the wide side mold (702) to move on the guide rail (709) for demolding or mold closing via the track wheel (711); an anti-tipping assembly is provided on the outer side of the bottom of the triangular support frame (710); Two triangular support frames (710) are installed at intervals on the outside of each long side mold (701) or wide side mold (702).

8. The mold for a prefabricated 3D house according to claim 7, characterized in that, The anti-tipping assembly includes an inclined support plate (712) installed on the outside of the bottom beam of the triangular support frame (710) and an anti-tipping wheel (713) rotatably installed at the end of the inclined support plate (712), the anti-tipping wheel (713) rotating in the side groove of the guide rail (709).

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