Core mold and prefabricated room integrated pouring mold

Abstract

The invention provides a core mold and a prefabricated room integrated pouring mold, and relates to the technical field of prefabricated room forming. The core mold comprises a core mold body and a linkage unit, the core mold body comprises an inner bottom mold, corner molds are detachably connected to the corners of the inner bottom mold, inner side molds are detachably connected to the side edges of the inner bottom mold, and the corner molds and the adjacent inner side molds abut against the opposite side end faces in a matched mode to define a side fence; and the linkage unit is connected to the angle molds and the inner side molds and is configured to be capable of driving the multiple angle molds to gather or disperse and driving the multiple inner side molds to gather or disperse. According to the core mold, the machining convenience and efficiency of a pouring mold can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated room molding, and in particular to a core mold and a prefabricated room integrated casting mold. Background Art

[0002] With the continuous development of society, prefabricated rooms, such as bathrooms and kitchens, have gradually become the mainstream of residential construction. In the prior art, prefabricated rooms are generally formed by casting in steps or in one piece using a mold. However, the opening operation of the core mold in the existing casting mold is complicated, and the processing efficiency of the mold for the prefabricated room is low. Summary of the invention

[0003] The purpose of the present invention is to provide a core mold and a prefabricated room integrated casting mold to solve the technical problems that the core mold opening operation in the existing casting mold is complicated and the processing efficiency of the mold for the prefabricated room is low.

[0004] In order to solve the above problems, the present invention provides a core mold, including a core mold body and a linkage unit, wherein the core mold body includes an inner bottom mold, the corner of the inner bottom mold is detachably connected to a corner mold, and the side edge is detachably connected to an inner side mold, and the side end surfaces of the corner mold and the adjacent inner side mold facing each other are matched and abutted to form a side enclosure;

[0005] The linkage unit is connected to the corner mold and the inner mold, and is configured to: be able to drive the multiple corner molds to gather or disperse, and be able to drive the multiple inner molds to gather or disperse.

[0006] Optionally, the linkage unit further comprises a guide frame and at least two linkage structures, the guide frame comprises a plurality of guide arms arranged radially, the guide arms are slidably connected to the corner mold and the top of the inner mold in a one-to-one correspondence, and the side end surfaces of the corner mold are parallel to the extension direction of the corresponding guide arms;

[0007] The linkage structure includes a turntable and a plurality of linkage parts, wherein the plurality of linkage parts of one linkage structure are respectively connected between the turntable and one of the corner molds, and the linkage parts of another linkage structure are respectively connected between the turntable and one of the inner molds; the linkage structure is configured as follows: the linkage parts can drive the corresponding plurality of corner molds or plurality of inner molds to gather or disperse under the driving force of the rotational movement of the turntable and the guiding action of the guide frame.

[0008] Optionally, the turntable is provided with a plurality of strip holes circumferentially arranged in its central area, and each of the strip holes includes a driving strip segment whose radial distance from the central area gradually decreases along its first extension direction; the linkage member includes a driving arm, a first end of the driving arm is provided with a plug-in protrusion, and a plurality of the plug-in protrusions are respectively slidably engaged in one of the strip holes; the second end of the driving arm of one of the linkage structures is fixedly connected to a plurality of the corner molds one by one, and the second end of the driving arm of the other linkage structure is fixedly connected to a plurality of the inner molds one by one.

[0009] Optionally, the guide frame is pivotally connected to a vertical rotating shaft, the linkage structure corresponding to the corner mold is a first linkage structure, and the linkage structure corresponding to the inner mold is a second linkage structure, and the rotating disks of the first linkage structure and the second linkage structure are both fixedly sleeved on the rotating shaft and arranged at intervals up and down;

[0010] The plug-in protrusion of the first linkage structure is slidably engaged with the corresponding driving strip segment; the strip hole of the second linkage structure also includes a follower arc segment, along the first extension direction of the strip hole, the follower arc segment is connected to the head end of the driving strip segment, and the follower arc segment is coaxially arranged with the central area, and the plug-in protrusion of the second linkage structure is slidably engaged with the corresponding follower arc segment.

[0011] Optionally, the first linkage structure includes a first guide member rotatably sleeved on the rotating shaft, the first guide member includes a plurality of first guide grooves arranged radially, the plurality of driving arms of the first linkage structure are slidably connected to the plurality of first guide grooves in a one-to-one correspondence, and the plurality of first guide grooves are parallel to the corresponding guide arms;

[0012] And / or, the second linkage structure includes a second guide member rotatably sleeved on the rotating shaft, the second guide member includes a plurality of second guide grooves arranged radially, the plurality of driving arms of the second linkage structure are slidably connected to the plurality of second guide grooves one by one, and the plurality of second guide grooves are parallel to the corresponding guide arms.

[0013] Optionally, the number of linkage structures in the linkage unit is three, one of which serves as a third linkage structure, in which the turntable is fixedly sleeved on the rotating shaft, and the plug-in protrusion is slidably plugged into the corresponding driving strip segment; the third linkage structure also includes a third guide member rotatably sleeved on the rotating shaft and relatively fixed to the guide frame, the third guide member includes a plurality of third guide grooves arranged radially, a plurality of driving arms of the third linkage structure are slidably connected to the plurality of third guide grooves in a one-to-one correspondence, and a second end of each driving arm is connected to a positioning member, and the positioning members respectively abut against different circumferential areas of the side enclosure;

[0014] Along the first extension direction, the radial distance between the driving strip segment of the first linkage structure and the central area decreases at a first rate, and the radial distance between the driving strip segment of the third linkage structure and the central area decreases at a third rate, which is greater than the first rate.

[0015] Optionally, the third guide grooves correspond one by one to a plurality of the corner molds, and the third guide grooves are respectively parallel to the side end surfaces of the corresponding corner molds; a plug-in groove is provided at the connection between the adjacent corner molds and the inner molds, and the positioning member includes a cross arm fixed to the corresponding driving arm, and plug-in arms are provided at both ends of the cross arm, and the two plug-in arms are plugged into the plug-in grooves on both sides of the corresponding corner molds one by one.

[0016] Optionally, the corner mold has a first side extension rib extending inward at the edge of its side end surface, and a side rib surface of the first side extension rib is coplanar with the side end surface of the corner mold; the inner mold has a second side extension rib extending inward at the edge of its side end surface, and a side rib surface of the second side extension rib is coplanar with the side end surface of the inner mold; the insertion groove is provided on adjacent first side extension ribs and second side extension ribs.

[0017] Optionally, there are multiple linkage units, and the multiple linkage units are arranged at intervals along the axial direction of the rotating shaft.

[0018] Optionally, a first annular boss is provided on the top edge of the inner bottom mold, a second annular boss is provided on the edge of the first annular boss, and the second annular boss and the first annular boss form an annular slot; plug-in protrusions are provided at the bottom ends of the corner mold and the inner mold, and the annular bosses formed by the plug-in protrusions are fitted and plugged into the annular slots, and the corner mold and the inner mold are detachably connected to the second annular boss via a connecting piece.

[0019] Optionally, the inner bottom mold includes multiple splicing bodies, the side splicing surfaces of adjacent splicing bodies are inclined surfaces, the splicing bodies have top extension ribs extending upward from the edges of their side splicing surfaces, and the rib surface of the splicing side of the top extension rib is coplanar with the side splicing surface.

[0020] The present invention also provides an integrated casting mold for a prefabricated room, comprising an outer mold and the above-mentioned core mold, wherein the outer mold comprises an outer bottom mold and a plurality of outer side molds arranged around the outer bottom mold, wherein at most one of the plurality of outer side molds serves as a fixed outer side mold, and the remaining outer side molds serve as movable outer side molds, and the movable outer side molds are detachably connected to the outer bottom mold and the adjacent outer side molds; the core mold is accommodated in the space surrounded by the outer mold, and a casting cavity is formed between the core mold and the outer mold.

[0021] The core mold provided by the present invention is applied to the integrated casting mold of the prefabricated room. The linkage unit thereof is arranged in linkage with multiple corner molds and multiple inner side molds. During the mold opening operation, the synchronous mold opening of multiple corner molds and multiple inner side molds can be achieved through the linkage unit. The mold opening operation is convenient and efficient, thereby greatly improving the processing convenience and processing efficiency of the integrated casting mold of the prefabricated room for the prefabricated room. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 An axonometric view of a prefabricated room integrated casting mold provided by an embodiment of the present invention when the mold is closed;

[0024] Figure 2 An axonometric view of a core mold provided by an embodiment of the present invention;

[0025] Figure 3 A top view of a core mold provided by an embodiment of the present invention;

[0026] Figure 4 An internal schematic diagram of a core mold provided by an embodiment of the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram of dismantling the third linkage structure;

[0028] Figure 6 for Figure 5 Schematic diagram of dismantling the second linkage structure;

[0029] Figure 7 An axonometric view of an inner bottom mold in a core mold provided by an embodiment of the present invention when a material conveying pipe is provided;

[0030] Figure 8 An axonometric view of the side enclosure in the core mold provided by an embodiment of the present invention when the mold is in an open state;

[0031] Fig. 9 A top view of the side enclosure in the core mold provided in an embodiment of the present invention when the mold is in an open state.

[0032] Description of reference numerals:

[0033] 10-core mold; 20-outer mold; 21-outer bottom mold; 22-outer mold; 22a-guide wheel; 22b-wheel seat; 22c-support rib; 30-casting cavity; 40-base; 41-guide rail; 100-core mold body; 110-inner bottom mold; 111-corner; 112-side edge; 113-first annular boss; 114-second annular boss; 115-annular slot; 116-joining body; 1 1A-side joint surface; 11B-top extension rib; 120-corner mold; 121-first side extension rib; 130-inner mold; 131-first opening; 132-second side extension rib; 14A-side end surface; 14B-side enclosure; 14C-insertion slot; 150-connector; 20A-linkage unit; 200-first linkage structure; 210-first turntable; 220-first drive arm; 230-first Guide member; 231-first extension arm; 231a-first guide groove; 300-second linkage structure; 310-second turntable; 320-second drive arm; 330-second guide member; 331-second extension arm; 331a-second guide groove; 400-third linkage structure; 410-third turntable; 420-third drive arm; 430-third guide member; 431-third extension arm; 431a-third guide groove; 440-positioning member; 441-cross arm; 442-plug-in arm; 510-central area; 520-outer ring area; 521-strip hole; 521a-driving strip section; 521b-follow-up arc section; 530-plug-in convex; 600-guide frame; 610-connecting part; 620-first guide arm; 630-second guide arm; 700-rotating shaft; 800-material conveying pipe. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] This embodiment provides a core mold 10, such as Figure 2-Figure 6 As shown, it includes a core mold body 100 and a linkage unit 20A. The core mold body 100 includes an inner bottom mold 110. The corner portion 111 of the inner bottom mold 110 is detachably connected to the corner mold 120, and the side portion 112 is detachably connected to the inner side mold 130. The side end surfaces 14A of the corner mold 120 and the adjacent inner side mold 130 face each other and abut against each other to form a side enclosure 14B. The linkage unit 20A is connected to the corner mold 120 and the inner side mold 130, and is configured to: be able to drive multiple corner molds 120 to gather or disperse, and be able to drive multiple inner side molds 130 to gather or disperse.

[0038] This embodiment also provides a prefabricated room integral casting mold, such as Figure 1 As shown, it includes an outer mold 20 and the above-mentioned core mold 10, the outer mold 20 includes an outer bottom mold 21 and a plurality of outer molds 22 surrounded by the outer bottom mold 21, among the plurality of outer molds 22, at most one outer mold 22 is used as a fixed outer mold 22, and the remaining outer molds 22 are used as movable outer molds 22, and the movable outer molds 22 are detachably connected to the outer bottom mold 21 and the adjacent outer molds 22; the core mold 10 is accommodated in the space surrounded by the outer mold 20, and a casting cavity 30 is surrounded by the core mold 10 and the outer mold 20.

[0039] In the core mold 10 provided in this embodiment, Figure 4 and Figure 7As shown, the edge of the inner bottom mold 110 includes multiple corners 111 and side portions 112 located between two corners 111. Along the circumference of the inner bottom mold 110, the corner molds 120 are corner-shaped, and their number and shape are adapted to the corners 111; the inner side molds 130 are arc-shaped or straight-line-shaped, and their number and shape are adapted to the side portions 112.

[0040] When the core mold 10 is used in a prefabricated room integral casting mold, the process includes assembling the core mold 10, assembling the outer mold 20, closing the core mold 10 and the outer mold 20, casting and curing, and opening the core mold 10 and the outer mold 20. The assembly of the core mold 10 can be as follows:

[0041] Initially, the linkage unit drives each corner mold 120 and each inner mold 130 to move in a dispersed manner, so that the corner mold 120 and the inner mold 130 are sequentially abutted to form a side enclosure, and along the circumference of the side enclosure, the side end faces 14A on both sides of the corner mold 120 are both planes and approximately fit with the side end faces 14A of the adjacent inner mold 130, and the bottom end of each corner mold 120 is respectively connected to a corresponding corner portion 111, and each inner mold 130 is respectively connected to a corresponding side edge portion 112.

[0042] The outer mold 20 may be assembled as follows:

[0043] Each movable outer mold 22 is detachably fixed to the corresponding edge section of the outer bottom mold 21 , and adjacent outer molds 22 are detachably fixed to each other, thereby enclosing a receiving cavity with an opening at the top.

[0044] Then, the core mold 10 and the outer mold 20 are molded together, which can be specifically as follows:

[0045] The assembled core mold 10 is installed into the accommodating cavity through the top opening of the self-assembled outer mold 20 to form an integrated casting mold. The top of the core mold 10 can be lower than, equal to, or higher than the outer mold 22. The inner bottom mold 110 of the core mold 10 is higher than the outer bottom mold 21 of the outer mold 20 and a bottom casting space is formed therebetween. An annular side casting space is formed between the side enclosure 14B of the core mold 10 and the outer mold 22 of the outer mold 20. The bottom casting space and the side casting space are connected to form a casting cavity 30.

[0046] Among them, one of the inner molds 130 of the core mold 10 can be provided with a first opening 131, and the outer mold 22 of the outer mold 20 is provided with a second opening corresponding to the first opening 131. The outer wall of the inner mold 130 is provided with an annular platform surrounding the first opening 131, or the inner wall of the outer mold 22 is provided with an annular platform surrounding the second opening. When the core mold 10 is assembled to the outer mold 20, the first opening 131 corresponds to the second opening, and the annular platform is surrounded between the first opening 131 and the second opening. Among them, the outer wall of the inner mold 130 or the inner wall of the outer mold 22 can be provided with pre-assembled parts such as steel bars and pipelines as needed.

[0047] Then pouring and curing operations can be carried out:

[0048] The material conveying device inputs materials such as cement concrete into the casting cavity 30 through its material conveying pipe 800 until the materials fill the bottom casting space and the side casting space of a preset height, thereby completing the one-piece casting and forming of the prefabricated room; after the casting is completed, the one-piece casting mold filled with the material can be placed in natural conditions or specific curing conditions for material strength curing until the material strength meets the requirements.

[0049] Preferably, the conveying end of the material conveying pipe 800 can extend into the core mold 10 through the first opening 131 and the second opening, and pass downward through the inner bottom mold 110; during pouring, the output end of the material conveying pipe 800 conveys material to the bottom pouring space, and the material first fills the bottom pouring space, and then gradually rises to fill the side pouring space of a preset height.

[0050] Then the core mold 10 and the outer mold 20 can be opened:

[0051] Among them, Figure 2 , Figure 8 and Fig. 9 As shown, the core mold 10 is opened by removing the connection between the corner mold 120, the inner side mold 130 and the inner bottom mold 110, and then driving the multiple corner molds 120 to gather and move through the linkage unit, so as to achieve the synchronous opening of the multiple corner molds 120 and the prefabricated room. Similarly, the multiple inner side molds 130 are driven to gather and move through the linkage unit, so as to achieve the synchronous opening of the multiple inner side molds 130 and the prefabricated room; then the core mold 10 in the opened state is taken out from the top opening of the prefabricated room.

[0052] Among them, the outer mold 20 is opened by removing the connection between each movable outer mold 22 and the adjacent outer mold 22 and the connection with the outer bottom mold 21, and pulling each movable outer mold 22 outward from the prefabricated room, thereby realizing the opening of the outer mold 20 and completing the integral casting of the prefabricated room by the integral casting mold.

[0053] The core mold 10 provided in this embodiment is applied to the integrated casting mold of the prefabricated room. The linkage unit thereof is arranged in linkage with the multiple corner molds 120 and the multiple inner molds 130. During the mold opening operation, the synchronous mold opening of the multiple corner molds 120 and the synchronous mold opening of the multiple inner molds 130 can be achieved through the linkage unit. The mold opening operation is convenient and efficient, thereby greatly improving the processing convenience and efficiency of the integrated casting mold of the prefabricated room for the prefabricated room.

[0054] In this embodiment, Figure 1As shown, the outer mold 20 may further include a base 40, the top surface of which is provided with a plurality of radially arranged guide rails 41, and the plurality of guide rails 41 correspond to the plurality of outer molds 22 one by one; a wheel seat 22b is provided at the bottom of each outer mold 22, and a guide wheel 22a is rollingly connected to the bottom of the wheel seat 22b, and the guide wheel 22a is correspondingly rollingly connected to one of the guide rails 41. When the outer mold 20 is opened, after the connection between the bottom mold and the outer mold 22 and the adjacent outer mold 22 is removed, each outer mold 22 can be pushed along the corresponding guide rail 41, so as to conveniently complete the opening operation of the outer mold 20. Among them, a support rib 22c may also be connected between the wheel seat 22b and the corresponding outer mold 22 to improve the strength of the outer mold 22 and reduce the deformation of the outer mold 22 during the casting process.

[0055] In this embodiment, the linkage unit 20A also includes a guide frame 600 and at least two linkage structures, the guide frame includes a plurality of guide arms arranged radially, the guide arms are slidably connected to the tops of the corner molds 120 and the inner molds 130 in a one-to-one correspondence, and the side end surfaces 14A on both sides of the corner molds 120 are parallel to the extension direction of the corresponding guide arms; the linkage structure includes a turntable and a plurality of linkage parts, wherein the plurality of linkage parts of one linkage structure are respectively connected between the turntable and one of the corner molds 120, and the linkage parts of another linkage structure are respectively connected between the turntable and one of the inner molds 130; the linkage structure is configured as follows: the linkage parts can drive the corresponding plurality of corner molds 120 or plurality of inner molds 130 to gather or disperse under the drive of the rotation of the turntable and the guiding action of the guide frame 600.

[0056] When in use, each guide arm of the guide frame guides the movement of the corresponding corner mold or inner side mold, and drives the turntable to rotate, so that the multiple connected corner molds or multiple inner side molds can be driven to gather or disperse synchronously along the corresponding guide arms through the corresponding multiple linkage parts, thereby realizing the synchronous opening and closing operation of multiple corner molds and the synchronous opening and closing operation of multiple inner side molds, thereby correspondingly improving the processing convenience and efficiency of the core mold and the prefabricated room integrated casting mold for the prefabricated room.

[0057] Specifically, in this embodiment, the turntable is provided with a plurality of strip holes 521 circumferentially arranged in the central area 510 thereof, and each strip hole 521 includes a driving strip segment 521a whose radial distance from the central area 510 gradually decreases along its first extension direction; the linkage member includes a driving arm, a first end of the driving arm is provided with an insert protrusion 530, and the plurality of insert protrusions 530 are respectively slidably engaged in one of the strip holes 521; the second end of the driving arm of one of the linkage structures is fixedly connected to a plurality of corner molds 120 one by one, and the second end of the driving arm of the other linkage structure is fixedly connected to a plurality of inner molds 130 one by one.

[0058] The multiple guide arms of the guide frame 600 are arranged radially, and some of the guide arms serve as first guide arms 620. The number of the first guide arms 620 is equal to the number of the corner molds 120 and they are slidably connected to the multiple corner molds 120 one by one. The extension direction of the slidably connected first guide arms 620 is parallel to the extension direction of the side end surfaces 14A on both sides of the corner mold 120. The other part of the guide arms serve as second guide arms 630. The number of the second guide arms 630 is equal to the number of the inner molds 130 and they are slidably connected to the multiple inner molds 130 one by one. In the linkage unit 20A, the structures of each linkage structure are similar. The turntable is divided into a central area 510 and an outer ring area 520 surrounding the central area 510. Each strip hole 521 is arranged in the outer ring area 520, and one of the linkage structures serves as the first linkage structure 200, its turntable serves as the first turntable 210, and the driving arm serves as the first driving arm 220, and the second ends of its multiple first driving arms 220 respectively extend toward one of the corner molds 120 and are fixed to the corner mold 120; the other linkage structure serves as the second linkage structure 300, its turntable serves as the second turntable 310, and the driving arm serves as the second driving arm 320, and the second ends of its multiple second driving arms 320 respectively extend toward one of the inner molds 130 and are fixed to the inner mold 130, wherein the turntables of the first linkage structure 200 and the second linkage structure 300 are horizontally arranged, and the driving arms are preferably also horizontally arranged.

[0059] When the linkage part adopts the form of a turntable, the core mold 10 in the assembled state is as follows: the first turntable 210 and the first driving arm 220 of the first linkage structure 200 are in the first mold closing position under the restriction of each corner mold 120 and the first guide arm 620, and the plug-in protrusion 530 of the first driving arm 220 can be plugged into the driving strip segment 521a of the strip hole 521; the second turntable 310 and the second driving arm 320 of the second linkage structure 300 are in the second mold closing position under the restriction of each inner mold 130.

[0060] Among them, Figure 2 , Figure 8 and Fig. 9 As shown, the core mold 10 is opened as follows: the connection between the corner mold 120, the inner mold 130 and the inner bottom mold 110 is removed, and then the first turntable 210 is rotated circumferentially. Since the side end surfaces 14A on both sides of the corner mold 120 are parallel to the extension direction of the first guide arm 620 to which it is slidably connected, the corner mold 120 can slide along the extension direction of the first guide arm 620 without interference. Accordingly, as the driving strip segment 521a rotates, the plug-in protrusion 530 gradually approaches the central area 510 in the radial direction under the guidance of the driving strip segment 521a and the first guide arm 620, and pulls the corresponding corner mold 120 toward the central area 510 through the first driving arm 220, until the corner mold 120 is separated from the inner mold 130 and continues to move inward for a certain distance, thereby realizing the synchronous opening of multiple corner molds 120 and the prefabricated room.

[0061] Continuing, similar to the synchronous opening of multiple corner molds 120 by the first linkage structure 200, the second turntable 310 is rotated circumferentially. When the plug-in protrusion 530 of the second linkage structure 300 is slidably plugged into its driving strip segment 521a, as the driving strip segment 521a rotates, the plug-in protrusion 530 gradually approaches the central area 510 in the radial direction under the guidance of the driving strip segment 521a and the second guide arm 630, and pulls the corresponding inner mold 130 toward the central area 510 through the second driving arm 320, thereby realizing the synchronous opening of multiple inner molds 130 and the prefabricated room; then, the connection between the guide frame 600 and the outer mold 22 is removed, and the core mold 10 in the open mold state is taken out from the top opening of the prefabricated room.

[0062] The core mold 10 provided in this embodiment is applied to the integrated casting mold of the prefabricated room, and its two linkage structures are respectively linked with the multiple corner molds 120 and the multiple inner molds 130. During the mold opening operation, the synchronous mold opening of the multiple corner molds 120 and the synchronous mold opening of the multiple inner molds 130 can be achieved by driving the rotational movement of the turntables of the two linkage structures. The mold opening operation is convenient and efficient, thereby greatly improving the processing convenience and efficiency of the integrated casting mold for the prefabricated room.

[0063] Among them, with the setting of the guide frame 600, after the mold opening operation, the entire core mold 10 except the inner bottom mold 110 can be lifted out through the guide frame 600, thereby further improving the mold opening convenience of the core mold 10, and correspondingly further improving the processing convenience and efficiency of the prefabricated room integrated casting mold for the prefabricated room.

[0064] In this embodiment, Figure 2-Figure 6 As shown, the guide frame 600 is pivotally connected with a vertical rotating shaft 700, the linkage structure corresponding to the corner mold 120 is the first linkage structure 200, and the linkage structure corresponding to the inner mold 130 is the second linkage structure 300, the turntables of the first linkage structure 200 and the second linkage structure 300 are fixedly sleeved on the rotating shaft 700 and arranged at intervals up and down; the plug-in protrusion 530 of the first linkage structure 200 is slidably engaged with the corresponding driving strip segment 521a; the strip hole 521 of the second linkage structure 300 also includes a follower arc segment 521b, along the first extension direction of the strip hole 521, the follower arc segment 521b is connected to the head end of the driving strip segment 521a, and the follower arc segment 521b is coaxially arranged with the central area 510, and the plug-in protrusion 530 of the second linkage structure 300 is slidably engaged with the corresponding follower arc segment 521b.

[0065] The strip holes 521 of the first linkage structure 200 and the second linkage structure 300 have the same extension area in the circumferential direction. When the core mold 10 is opened, the rotating shaft 700 can be driven to rotate to drive the first turntable 210 and the second turntable 310 to rotate synchronously therewith. In the first stage, as the first turntable 210 and the second turntable 310 rotate, the radial distance between the driving strip segment 521a and the central area 510 in the first linkage structure 200 gradually decreases, and the plug-in protrusion 530 is located between the driving strip segment 521a and the first turntable 210. Under the guidance of a guide arm 620, the corner mold 120 gradually approaches the central area 510, and under the pulling action of the plug-in protrusion 530 and the first driving arm 220, the corner mold 120 synchronously approaches the central area 510 and separates from the inner mold 130 by a certain distance, thereby realizing the mold opening of multiple corner molds 120 and the prefabricated room; in the second linkage structure 300, the radial distance between the follower arc segment 521b and the central area 510 remains unchanged, and the plug-in protrusion 530 remains fixed under the guidance of the follower arc segment 521b and the second guide arm 630.

[0066] Continuing, entering the second stage, as the first turntable 210 and the second turntable 310 continue to rotate, in the first linkage structure 200, the radial distance between the driving strip segment 521a and the central area 510 continues to gradually decrease, and the plug-in protrusion 530 continues to pull the corner mold 120 toward the central area 510 through the first driving arm 220 to reduce the interference of the corner mold 120 on the mold opening of the inner mold 130; in the second linkage structure 300, the plug-in protrusion 530 enters the driving strip segment 521a from the follower arc segment 521b, and the radial distance between the driving strip segment 521a and the central area 510 gradually decreases. The plug-in protrusion 530 gradually approaches the central area 510 under the guidance of the driving strip segment 521a and the second guide arm 630, and the inner mold 130 synchronously approaches the central area 510 and deviates from the pre-support direction under the pulling action of the plug-in protrusion 530 and the second driving arm 320, thereby realizing the mold opening of multiple inner molds 130 and prefabricated rooms.

[0067] Similarly, when the core mold 10 is assembled, the rotating shaft 700 can be driven to rotate in the opposite direction, and the inner mold 130 first moves away from the central area 510 to the initial position under the driving and guiding action of the second linkage structure 300, and then the corner mold 120 moves away from the central area 510 to the initial position under the driving and guiding action of the first linkage structure 200, thereby realizing the positional assembly of the corner mold 120 and the inner mold 130, and then the corner mold 120 and the inner mold 130 are correspondingly connected to the inner bottom mold 110.

[0068] The core mold 10 provided in the present embodiment, through the setting of the above-mentioned rotating shaft 700, can realize the synchronous mold opening of multiple corner molds 120 and the synchronous mold opening of multiple inner molds 130 in succession only by rotating the rotating shaft 700, and can ensure the stable operation of the mold opening operation, thereby further improving the mold opening convenience and efficiency of the core mold 10, and correspondingly further improving the processing convenience and processing efficiency of the prefabricated room integrated casting mold for the prefabricated room; at the same time, the position assembly of the corner mold 120 and the inner mold 130 can be achieved only by rotating the rotating shaft 700, thereby improving the assembly convenience and efficiency of the core mold 10, and correspondingly further improving the processing convenience and processing efficiency of the prefabricated room integrated casting mold for the prefabricated room.

[0069] Specifically, a rotation driving member may be provided on the guide frame 600 , and the rotation driving member is transmission-connected to the rotating shaft 700 to realize driving the rotating shaft 700 to rotate; wherein the rotation driving member may be a driving motor.

[0070] Specifically, multiple corner molds 120 are arranged in a circular array, and correspondingly, multiple inner molds 130 are also arranged in a circular array. The multiple first driving arms 220 of the first linkage structure 200 are evenly spaced along the circumference of the first turntable 210, and the multiple second driving arms 320 of the second linkage structure 300 are evenly spaced along the circumference of the second turntable 310; the multiple guide arms in the guide frame 600 can be all connected to the connecting part 610, and are evenly spaced along the circumference of the connecting part 610, and are vertically rotatably connected to the center position of the connecting part 610 of the guide frame 600, wherein the connecting part 610, the first turntable 210, and the second turntable 310 are coaxially arranged. The lengths of the plurality of first driving arms 220 in the first linkage structure 200 are all equal. When the first linkage structure 200 is assembled to the corner mold 120, there is no restriction on the circumferential corresponding positions of the first driving arm 220 and the corner mold 120. Similarly, when the second linkage structure 300 is assembled to the inner mold 130, there is no restriction on the circumferential corresponding positions of the second driving arm 320 and the inner mold 130, thereby improving the convenience and efficiency of assembling the linkage structure with the corner mold 120 and the inner mold 130. At the same time, during the mold opening operation, the rotating motion of the turntable can drive the movement speed of each corner mold 120 or each inner mold 130 toward the central area 510 to be equal through the driving arm, thereby improving the stability and smoothness of the mold opening operation, and further reducing the occurrence of interference between the corner mold 120 and the inner mold 130. Similarly, there is no restriction on the circumferential position of the guide frame 600 when it is connected to the corner mold 120 and the inner mold 130, so as to further improve the convenience of assembling the core mold 10.

[0071] Specifically, Figure 2 As shown, there can be four corner molds 120 and four inner molds 130. The four corner molds 120 and the four inner molds 130 form a rectangular side enclosure 14B. The outer mold 20 is also rectangular accordingly. The two are combined to form a prefabricated room with a regular rectangular shape.

[0072] In this embodiment, Figure 6 As shown, the first linkage structure 200 includes a first guide member 230 rotatably sleeved on the rotating shaft 700, and the first guide member 230 includes a plurality of first guide grooves 231a arranged radially, and a plurality of driving arms of the first linkage structure 200 are slidably connected to the plurality of first guide grooves 231a one by one, and the plurality of first guide grooves 231a are parallel to the corresponding guide arms. Multiple first guide grooves 231a are located one by one below the multiple first guide arms 620 and are parallel to the corresponding first guide arms 620. When the first turntable 210 is driven to rotate, so as to drive the plug-in protrusion 530 to radially approach or move away from the central area 510 by driving the strip segment 521a, the first guide arm 620 can guide the radial movement of the plug-in protrusion 530 once through the corner mold 120 and the first driving arm 220, and the first guide groove 231a can guide the radial movement of the plug-in protrusion 530 by the first driving arm 220 twice, thereby improving the linkage stability and smoothness of the first linkage structure 200 and ensuring the smooth and synchronous mold opening of the corner mold 120. Specifically, the first guide member 230 may include a first sleeve connection portion, the outer periphery of which is provided with a plurality of radially extending first extension arms 431331231, and each first extension arm 431331231 is provided with a first guide groove 231a along its extension direction; the first sleeve connection portion can be rotatably sleeved on the rotating shaft 700 through a bearing to achieve circumferential relative rotation and axial relative fixation with the rotating shaft 700.

[0073] Similarly, if Figure 5As shown, the second linkage structure 300 includes a second guide member 330 rotatably sleeved on the rotating shaft 700, and the second guide member 330 includes a plurality of second guide grooves 331a arranged radially, and a plurality of driving arms of the second linkage structure 300 are slidably connected to the plurality of second guide grooves 331a one by one, and the plurality of second guide grooves 331a are parallel to the corresponding guide arms. A plurality of second guide grooves 331a are located one by one below the plurality of second guide arms 630 and are parallel to the corresponding second guide arms 630. When the second turntable 310 is driven to rotate, and in the process of driving the plug-in protrusion 530 to radially approach or move away from the central area 510 by driving the strip segment 521a, the second guide arm 630 can guide the radial movement of the plug-in protrusion 530 once through the inner mold 130 and the second driving arm 320, and the second guide grooves 331a can guide the radial movement of the plug-in protrusion 530 by the second driving arm 320 for a second time, thereby improving the linkage stability and smoothness of the second linkage structure 300 and ensuring the smooth and synchronous mold opening of the inner mold 130. Specifically, the second guide member 330 may include a second sleeve portion, the outer periphery of which is provided with a plurality of radially extending second extension arms 331, and each second extension arm 331 is provided with a second guide groove 331a along its extension direction; the second sleeve portion can be rotatably sleeved on the rotating shaft 700 through a bearing to achieve circumferential relative rotation and axial relative fixation with the rotating shaft 700.

[0074] In this embodiment, Figure 2 and Figure 4 As shown, the number of linkage structures in the linkage unit 20A is three, and another linkage structure other than the first linkage structure 200 and the second linkage structure 300 is used as the third linkage structure 400. In the third linkage structure 400, the turntable is fixedly sleeved on the rotating shaft 700, and the plug-in protrusion 530 is slidably plugged into the corresponding driving strip segment 521a; the third linkage structure 400 also includes a third guide member 430 that is rotatably sleeved on the rotating shaft 700 and relatively fixed to the guide frame 600, and the third guide member 430 includes a plurality of third guide grooves 431a arranged radially, The multiple driving arms of the third linkage structure 400 are slidably connected to the multiple third guide grooves 431a in a one-to-one manner, and the second end of each driving arm is connected to a positioning member 440, which respectively abuts against different circumferential areas of the side enclosure 14B; along the first extension direction, the rate of decrease of the radial distance between the driving strip segment 521a of the first linkage structure 200 and the central area 510 is the first rate, and the rate of decrease of the radial distance between the driving strip segment 521a of the third linkage structure 400 and the central area 510 is the third rate, and the third rate is greater than the first rate.

[0075] The third guide member 430 may specifically include a third sleeve portion, and a plurality of third extension arms 431 extending radially are provided on the outer periphery of the third sleeve portion, and each third extension arm 431 is provided with a third guide groove 431a along its extension direction; wherein the third sleeve portion may specifically be rotatably sleeved on the rotating shaft 700 through a bearing to achieve axial relative fixation with the rotating shaft 700, and the third sleeve portion or the third extension arm 431 may specifically be fixedly connected to the guide frame 600 through a connecting arm or detachably fixed to the inner bottom mold 110, so as to achieve relative fixation of the circumferential position of the third guide member 430 and the rotating shaft 700 while ensuring that the rotation of each turntable is not interfered with.

[0076] Among them, the turntable of the third linkage structure 400 is the third turntable 410, and the driving arm is the third driving arm 420. During the assembly stage of the core mold 10 and the casting and maintenance stage after the mold is closed with the outer mold 20, multiple third driving arms 420 are outwardly abutted against different positions of the side enclosure 14B through the positioning parts 440, thereby enhancing the strength and stability of the side enclosure 14B, especially reducing the inward pressure exerted on the side enclosure 14B by the material in the casting cavity 30 during the construction and maintenance stages, causing the corner mold 120 and the inner mold 130 to deform inwardly and shift, etc., resulting in a gap between the two, so that the material leaks into the core mold 10 through the gap, thereby affecting the molding effect of the prefabricated room and damaging the core mold 10.

[0077] like Figure 4 and Figure 6 As shown, the strip holes 521 of the third linkage structure 400 and the first linkage structure 200 only include the driving strip segments 521a, and the extension areas of the driving strip segments 521a of the two are consistent along the circumferential direction; when the core mold 10 is opened, the driving shaft 700 rotates to drive the first rotating disk 210, the second rotating disk 310 and the third rotating disk 410 to rotate synchronously therewith. In the first stage, as the first rotating disk 210, the second rotating disk 310 and the third rotating disk 410 rotate, the radial distances between the driving strip segments 521a and the central area 510 in the first linkage structure 200 and the third linkage structure 400 are gradually reduced, and the radial distance between the driving strip segments 521a and the central area 510 in the third linkage structure 400 is reduced at a speed of 0. The rate is relatively large, and accordingly, the third driving arm 420 drives the positioning member 440 to withdraw from the side enclosure 14B toward the central area 510 at a relatively large rate, so as to disengage from the abutment and pushing effect of the diagonal mold 120 and the inner mold 130, and reduce the interference of the positioning member 440 on the mold opening operation of the diagonal mold 120 and the inner mold 130; at the same time, the first driving arm 220 pulls each corner mold 120 to gradually disengage from the inner mold 130 and move toward the central area 510, and the movement rate is lower than the movement rate of the positioning member 440, thereby realizing the synchronous mold opening of multiple corner molds 120 and ensuring the smooth mold opening; in the second linkage structure 300, the positions of the second driving arm 320 and the plug-in protrusion 530 remain stationary, and the position of the inner mold 130 remains different accordingly.

[0078] Continuing, entering the second stage, with the rotation of the first turntable 210, the second turntable 310 and the third turntable 410, the positioning member 440 is driven by the third driving arm 420 to approach the central area 510 of the third turntable 410 at a higher rate, and the corner mold 120 is located on the outside of the positioning member 440 and is driven by the first driving arm 220 to approach the central area 510 of the first turntable 210 at a lower rate; in the second linkage structure 300, the plug-in protrusion 530 enters the driving strip segment 521a from the follow-up arc segment 521b, and the inner mold 130 remains on the outside of the corner mold 120, and is driven by the second driving arm 320 to gradually approach the central area 510 of the second turntable 310, thereby realizing the synchronous mold opening of multiple inner molds 130 and the prefabricated room, and ensuring the smooth mold opening.

[0079] In this embodiment, the third guide grooves 431a correspond one by one to a plurality of corner molds 120, and the third guide grooves 431a are respectively parallel to the side end surfaces 14A on both sides of the corresponding corner molds 120; a plug-in groove 14C is provided at the connection between the adjacent corner molds 120 and the inner molds 130, and the positioning member 440 includes a cross arm 441 fixedly connected to the corresponding driving arm, and plug-in arms 442 are provided at both ends of the cross arm 441, and the two plug-in arms 442 are plugged into the plug-in grooves 14C on both sides of the corresponding corner molds 120 one by one. The third guide groove 431a, the first guide arm 620 and the first guide groove 231a are all corresponding to each other and arranged in parallel. When the core mold 10 is in the assembled state, each third driving arm 420 drives the two plug-in arms 442 through the cross arm 441 to be respectively plugged into the plug-in grooves 14C on both sides of the corner mold 120, thereby abutting and limiting the two sides of the corner mold 120 and the two adjacent inner molds 130 toward one side of the corner mold 120. Accordingly, a plurality of positioning members 440 can abut and limit the joints on both sides of all corner molds 120 and inner molds 130, thereby effectively ensuring the positional firmness and stability of all corner molds 120 and inner molds 130, and further ensuring the effectiveness of the corner molds 120 and inner molds 130 during the casting and curing stages.

[0080] In this embodiment, Figure 3-Figure 6As shown, the corner mold 120 has a first side extension rib 121 extending inward at the edge of its side end surface 14A, and one side rib surface of the first side extension rib 121 is coplanar with the side end surface 14A of the corner mold 120; the inner mold 130 has a second side extension rib 132 extending inward at the edge of its side end surface 14A, and one side rib surface of the second side extension rib 132 is coplanar with the side end surface 14A of the inner mold 130; the insertion groove 14C is provided on the adjacent first side extension rib 121 and second side extension rib 132. The arrangement of the first side extension rib 121 and the second side extension rib 132, on the one hand, can effectively increase the fitting area of ​​the corner mold 120 and the inner mold 130 while ensuring that the corner mold 120 can move relative to the inner mold 130 along the extension direction of its side end surface 14A to realize the mold opening and closing operation, so as to further reduce the occurrence of material leakage from between the corner mold 120 and the inner mold 130 during the casting process; on the other hand, the first side extension rib 121 and the second side extension rib 132 can effectively increase the fitting area of ​​the corner mold 120 and the inner mold 130 during the casting process, so as to further reduce the occurrence of material leakage from between the corner mold 120 and the inner mold 130 during the casting process. The mold 130 plays a supporting role to reduce the deformation and offset of the corner mold 120 and the inner mold 130, and further reduce the leakage of materials from between the corner mold 120 and the inner mold 130 during the casting process; on the other hand, the plug-in groove 14C is arranged on the first side extension rib 121 and the second side extension rib 132. On the basis of ensuring that the plug-in groove 14C cooperates with the plug-in arm 442 to limit the position, the setting of the plug-in groove 14C can reduce the damage to the corner mold 120 and the inner mold 130 and the occurrence of leakage.

[0081] In this embodiment, there are multiple linkage units 20A, and the multiple linkage units 20A are arranged at intervals along the axial direction of the rotating shaft 700 . During the pouring and curing process, the first driving arms 220 of the multiple groups of first linkage structures 200 can support different vertical positions of the corner mold 120, the second driving arms 320 of the multiple groups of second linkage structures 300 can support different vertical positions of the inner mold 130, and the third driving arms 420 and positioning members 440 of the multiple groups of third linkage structures 400 can support different vertical positions of the corner mold 120 and the inner mold 130, thereby improving the strength and stability of the corner mold 120 and the inner mold 130, and ensuring the effectiveness of the core mold 10 during the pouring process; when opening the mold, the first driving arms 220 of the multiple groups of first linkage structures 200 can apply a pulling effect to different vertical positions of the corner mold 120, and the second driving arms 320 of the multiple groups of second linkage structures 300 can apply a pulling effect to different vertical positions of the inner mold 130, thereby further improving the stability of the synchronous mold opening of the corner mold 120 and the inner mold 130 by each linkage structure, and ensuring the stability of the mold opening process and the assembly process of the core mold 10.

[0082] like Figure 4 As shown, the number of the linkage units 20A is three, and the three linkage units 20A are arranged on the rotating shaft 700 at intervals along the vertical direction.

[0083] In this embodiment, Figure 4 and Figure 7 As shown, the top edge of the inner bottom mold 110 is surrounded by a first annular boss 113, the edge of the first annular boss 113 is surrounded by a second annular boss 114, and the second annular boss 114 and the first annular boss 113 form an annular slot 115; the bottom ends of the corner mold 120 and the inner mold 130 are both provided with plug-in protrusions 530, and the annular plug-in platforms formed by the plug-in protrusions 530 are fitted and plugged into the annular slot 115, and the corner mold 120 and the inner mold 130 are both detachably connected to the second annular boss 114 via a connecting piece 150. During assembly, the plug-in protrusions 530 of the corner mold 120 and the inner mold 130 can be inserted into the annular slot 115 to locate the connection position of the corner mold 120 and the inner mold 130 with the inner bottom mold 110, thereby correspondingly improving the convenience and position accuracy of connecting the corner mold 120 and the inner mold 130 to the inner bottom mold 110; continuously, the corner mold 120 and the inner mold 130 are detachably connected to the first annular boss 113 through connecting parts 150, such as bolts and nuts.

[0084] In this embodiment, Figure 4 and Figure 7 As shown, the inner bottom mold 110 includes a plurality of splicing bodies 116, the side splicing surfaces 11A of adjacent splicing bodies 116 are inclined surfaces, and the splicing bodies 116 have top extension ribs 11B extending upward from the edges of their side splicing surfaces 11A, and the rib surface of the splicing side of the top extension ribs 11B is coplanar with the side splicing surface 11A. On the one hand, the inner bottom mold 110 is in the form of a plurality of splicing bodies 116, and when the inner bottom mold 110 is opened, the single splicing bodies 116 with smaller areas can be removed from the prefabricated room in sequence, thereby improving the convenience of opening the inner bottom mold 110; on the other hand, the side splicing surfaces 11A of adjacent splicing bodies 116 are set as inclined surfaces, and the top extension ribs 11B are provided, which can double increase the splicing area of ​​adjacent splicing bodies 116, so as to effectively reduce the occurrence of material leakage from the splicing area during the pouring process.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A core mold, characterized in that: The invention comprises a core mold body (100) and a linkage unit (20A), wherein the core mold body (100) comprises an inner bottom mold (110), wherein a corner portion (111) of the inner bottom mold (110) is detachably connected to a corner mold (120), and a side portion (112) is detachably connected to an inner side mold (130), and the corner mold (120) and the adjacent inner side mold (130) are matched and abutted against each other's side end surfaces (14A) to form a side enclosure (14B); The linkage unit (20A) is connected to the corner mold (120) and the inner mold (130), and is configured to be able to drive the plurality of corner molds (120) to move together or apart, and to be able to drive the plurality of inner molds (130) to move together or apart.

2. The core mold according to claim 1, characterized in that: The linkage unit (20A) further comprises a guide frame (600) and at least two linkage structures, wherein the guide frame comprises a plurality of guide arms arranged radially, wherein the guide arms are slidably connected to the tops of the corner mold (120) and the inner mold (130) in a one-to-one correspondence, and the side end surfaces (14A) on both sides of the corner mold (120) are parallel to the extension direction of the corresponding guide arms; The linkage structure comprises a turntable and a plurality of linkage parts, wherein the plurality of linkage parts of one of the linkage structures are respectively connected between the turntable and one of the corner molds (120), and the linkage parts of another linkage structure are respectively connected between the turntable and one of the inner molds (130); the linkage structure is configured as follows: the linkage parts can drive the corresponding plurality of corner molds (120) or the plurality of inner molds (130) to move together or apart under the driving force of the rotational movement of the turntable and the guiding action of the guide frame (600).

3. The core mold according to claim 2, characterized in that: The turntable is provided with a plurality of strip holes (521) circumferentially arranged in a central area (510) thereof, and each of the strip holes (521) comprises a driving strip segment (521a) whose radial distance from the central area (510) gradually decreases along its first extension direction; the linkage member comprises a driving arm, a first end of the driving arm is provided with an insertion protrusion (530), and a plurality of the insertion protrusions (530) are respectively and correspondingly slidably engaged with one of the strip holes (521); the second end of the driving arm of one of the linkage structures is fixedly connected to a plurality of the corner molds (120) in a one-to-one correspondence, and the second end of the driving arm of another linkage structure is fixedly connected to a plurality of the inner molds (130) in a one-to-one correspondence.

4. The core mold according to claim 3, characterized in that: The guide frame (600) is pivotally connected to a vertical rotating shaft (700); the linkage structure corresponding to the corner mold (120) is a first linkage structure (200); the linkage structure corresponding to the inner mold (130) is a second linkage structure (300); the rotating disks of the first linkage structure (200) and the second linkage structure (300) are both fixedly sleeved on the rotating shaft (700) and are arranged in an upper and lower interval manner; The plug-in protrusion (530) of the first linkage structure (200) is slidably engaged with the corresponding driving strip segment (521a); ​​the strip hole (521) of the second linkage structure (300) further comprises a follower arc segment (521b), and along the first extension direction of the strip hole (521), the follower arc segment (521b) is connected to the head end of the driving strip segment (521a), and the follower arc segment (521b) is coaxially arranged with the central area (510), and the plug-in protrusion (530) of the second linkage structure (300) is slidably engaged with the corresponding follower arc segment (521b).

5. The core mold according to claim 4, characterized in that: The first linkage structure (200) comprises a first guide member (230) rotatably sleeved on the rotating shaft (700), the first guide member (230) comprises a plurality of first guide grooves (231a) arranged radially, the plurality of driving arms of the first linkage structure (200) are slidably connected to the plurality of first guide grooves (231a) in a one-to-one correspondence, and the plurality of first guide grooves (231a) are parallel to the corresponding guide arms; And / or, the second linkage structure (300) includes a second guide member (330) rotatably sleeved on the rotating shaft (700), the second guide member (330) includes a plurality of second guide grooves (331a) arranged radially, the plurality of driving arms of the second linkage structure (300) are slidably connected to the plurality of second guide grooves (331a) in a one-to-one correspondence, and the plurality of second guide grooves (331a) are parallel to the corresponding guide arms.

6. The core mold according to claim 4 or 5, characterized in that: The number of linkage structures in the linkage unit (20A) is three, one of which is used as a third linkage structure (400). In the third linkage structure (400), the turntable is fixedly sleeved on the rotating shaft (700), and the plug-in protrusion (530) is slidably plugged into the corresponding driving strip segment (521a); ​​the third linkage structure (400) also includes a third guide member (430) that is rotatably sleeved on the rotating shaft (700) and relatively fixed to the guide frame (600), and the third guide member (430) includes a plurality of third guide grooves (431a) arranged radially, and the plurality of driving arms of the third linkage structure (400) are slidably connected to the plurality of third guide grooves (431a) in a one-to-one correspondence, and the second end of each driving arm is connected to a positioning member (440), and the positioning member (440) is respectively abutted against different circumferential areas of the side enclosure (14B); Along the first extension direction, a rate of decrease of the radial distance between the driving strip segment (521a) of the first linkage structure (200) and the central area (510) is a first rate, and a rate of decrease of the radial distance between the driving strip segment (521a) of the third linkage structure (400) and the central area (510) is a third rate, and the third rate is greater than the first rate.

7. The core mold according to claim 6, characterized in that: The third guide grooves (431a) correspond one by one to the plurality of angle molds (120), and the third guide grooves (431a) are respectively parallel to the side end surfaces (14A) of the corresponding angle molds (120); a plug-in groove (14C) is provided at the connection between the adjacent angle molds (120) and the inner molds (130); the positioning member (440) includes a cross arm (441) fixedly connected to the corresponding driving arm, and plug-in arms (442) are provided at both ends of the cross arm (441), and the two plug-in arms (442) are plugged into the plug-in grooves (14C) on both sides of the corresponding angle molds (120) one by one.

8. The core mold according to claim 7, characterized in that: The corner mold (120) has a first side extension rib (121) extending inwardly at the edge of its side end surface (14A), and a side rib surface of the first side extension rib (121) is coplanar with the side end surface (14A) of the corner mold (120); the inner mold (130) has a second side extension rib (132) extending inwardly at the edge of its side end surface (14A), and a side rib surface of the second side extension rib (132) is coplanar with the side end surface (14A) of the inner mold (130); the insertion groove (14C) is provided on adjacent first side extension ribs (121) and second side extension ribs (132).

9. The core mold according to any one of claims 1 to 5, characterized in that: The top edge of the inner bottom mold (110) is surrounded by a first annular boss (113), the edge of the first annular boss (113) is surrounded by a second annular boss (114), and the second annular boss (114) and the first annular boss (113) form an annular slot (115); the bottom ends of the angle mold (120) and the inner side mold (130) are both provided with plug-in protrusions (530), and the annular plug-in platforms formed by the plug-in protrusions (530) are plugged into the annular slot (115), and the angle mold (120) and the inner side mold (130) are both detachably connected to the second annular boss (114) via a connecting piece (150); And / or, the inner bottom mold (110) includes a plurality of splicing bodies (116), the side splicing surfaces (11A) of adjacent splicing bodies (116) are inclined surfaces, the splicing bodies (116) are provided with top extension ribs (11B) extending upward from the edges of their side splicing surfaces (11A), and the rib surface of the splicing side of the top extension rib (11B) is coplanar with the side splicing surface (11A).

10. A prefabricated room integrated casting mold, characterized in that: It comprises an outer mold (20) and a core mold (10) as described in any one of claims 1 to 9, wherein the outer mold (20) comprises an outer bottom mold (21) and a plurality of outer molds (22) arranged around the outer bottom mold (21), wherein at most one of the plurality of outer molds (22) serves as a fixed outer mold (22), and the remaining outer molds (22) serve as movable outer molds (22), and the movable outer molds (22) are detachably connected to the outer bottom mold (21) and the adjacent outer molds (22); the core mold (10) is accommodated in a space enclosed by the outer mold (20), and a casting cavity (30) is enclosed between the core mold (10) and the outer mold (20).

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