Core mold and precast room integrated casting mold

Abstract

This invention provides a core mold and an integrated casting mold for prefabricated rooms, relating to the field of prefabricated room molding technology. The core mold includes a core mold body and a linkage unit. The core mold body includes an inner bottom mold, with corner molds detachably connected to its corners and inner side molds detachably connected to its sides. The corner molds and adjacent inner side molds abut against each other's side faces to form a side enclosure. The linkage unit is connected to the corner molds and the inner side molds and is configured to drive multiple corner molds to converge or disperse, and to drive multiple inner side molds to converge or disperse. This core mold improves the ease and efficiency of casting mold processing.

Description

Technical Field

[0001] This invention relates to the field of precast room molding technology, and in particular to a core mold and an integrated casting mold for precast rooms. Background Technology

[0002] With the continuous development of society, prefabricated rooms, such as bathrooms and kitchens, are gradually becoming the mainstream of residential construction. In existing technologies, prefabricated rooms are generally formed by casting in stages or as a whole using molds. However, the mold opening operation of the core mold in existing casting molds is complicated, resulting in low processing efficiency of the molds for prefabricated rooms. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated casting mold for core mold and precast room, so as to solve the technical problem that the core mold opening operation is complicated in existing casting molds, resulting in low processing efficiency of the mold for precast rooms.

[0004] To solve the above problems, the present invention provides a core mold, including a core mold body and a linkage unit. The core mold body includes an inner bottom mold, a corner mold detachably connected to the corner of the inner bottom mold, and an inner side mold detachably connected to the side. The corner mold and the adjacent inner side mold cooperate to abut against each other's side end faces to form a side enclosure.

[0005] The linkage unit is connected to the corner mold and the inner mold, and is configured to: drive multiple corner molds to move together or apart, and drive multiple inner molds to move together or apart.

[0006] Optionally, the linkage unit further includes a guide frame and at least two linkage structures. The guide frame includes multiple guide arms arranged radially. The guide arms are slidably connected to the top of the corner mold and the inner mold, and the two side end faces of the corner mold are parallel to the extension direction of the corresponding guide arm.

[0007] The linkage structure includes a turntable and multiple linkage components. In one linkage structure, the multiple linkage components are respectively connected between the turntable and one of the corner molds. In another linkage structure, the linkage components are respectively connected between the turntable and one of the inner molds. The linkage structure is configured such that, driven by the rotation of the turntable and guided by the guide frame, the linkage components can drive the corresponding multiple corner molds or multiple inner molds to move together or apart.

[0008] Optionally, the turntable has multiple strip-shaped holes arranged circumferentially around its central region, and each strip-shaped hole includes a driving strip segment whose radial distance from the central region gradually decreases along its first extension direction; the linkage includes a driving arm, the first end of the driving arm has a first insertion protrusion, and multiple first insertion protrusions are respectively slidably engaged with one of the strip-shaped holes; the second end of the driving arm of one of the linkage structures is fixedly connected to multiple corner molds, and the second end of the driving arm of the other linkage structure is fixedly connected to multiple inner molds.

[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. The turntables of the first linkage structure and the second linkage structure are both fixedly sleeved on the rotating shaft and arranged vertically at intervals.

[0010] The first insertion protrusion of the first linkage structure is slidably engaged with the corresponding driving strip segment; the strip hole of the second linkage structure further includes a follower arc segment, which is connected to the first end of the driving strip segment along the first extension direction of the strip hole, and the follower arc segment is coaxially arranged with the central region, and the first insertion 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 one by one, 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 including a plurality of second guide grooves arranged radially, the plurality of driving arms of the second linkage structure being slidably connected to the plurality of second guide grooves one-to-one, and the plurality of second guide grooves being parallel to the corresponding guide arms.

[0013] Optionally, the linkage unit has three linkage structures, one of which serves as the third linkage structure. In the third linkage structure, the turntable is fixedly sleeved on the rotating shaft, and the first insertion protrusion is slidably inserted into the corresponding drive strip segment. The third linkage structure also includes a third guide member that is 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. The plurality of drive arms of the third linkage structure are slidably connected to the plurality of third guide grooves one by one, and the second end of each drive arm is connected to a positioning member, which abuts against different areas of the side enclosure.

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

[0015] Optionally, the third guide groove corresponds to one of the multiple corner molds, and the third guide groove is parallel to the two side end faces of the corresponding corner molds; the connection between adjacent corner molds and the inner mold is provided with a plug-in groove, the positioning member includes a horizontal arm fixed to the corresponding drive arm, and both ends of the horizontal arm are provided with plug-in arms, and the two plug-in arms are plugged into the plug-in grooves on both sides of the corresponding corner molds.

[0016] Optionally, the corner mold has a first side extension rib extending inward at the edge of its side end face, and one side rib surface of the first side extension rib is coplanar with the side end face of the corner mold; the inner mold has a second side extension rib extending inward at the edge of its side end face, and one side rib surface of the second side extension rib is coplanar with the side end face 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, the top edge of the inner bottom mold is provided with a first annular boss, and the edge of the first annular boss is provided with a second annular boss, the second annular boss and the first annular boss forming an annular slot; the bottom ends of the corner mold and the inner side mold are provided with second insertion protrusions, and the annular insertion platform formed by each second insertion protrusion is fitted into the annular slot, and the corner mold and the inner side mold are detachably connected to the second annular boss through connectors.

[0019] Optionally, the inner bottom mold includes multiple splicing bodies, the side splicing surfaces of adjacent splicing bodies are inclined surfaces, and the splicing body has a top extension rib extending upward from the edge of its side splicing surface, and the rib surface of the top extension rib on the splicing side is coplanar with the side splicing surface.

[0020] The present invention also provides a precast room integrated casting mold, including an outer mold and the aforementioned core mold. The outer mold includes an outer bottom mold and a plurality of outer side molds surrounding the outer bottom mold. Among the plurality of outer side molds, at most one outer side mold is a fixed outer side mold, and the remaining outer side molds are movable outer side molds. The movable outer side molds are detachably connected to the outer bottom mold and adjacent outer side molds. The core mold is housed in the space enclosed by the outer mold, and the core mold and the outer mold form a casting cavity.

[0021] The core mold provided by this invention is used in the integrated casting mold for precast rooms. Its linkage unit is linked with multiple corner molds and multiple inner molds. During the mold opening operation, the linkage unit can realize the synchronous opening of multiple corner molds and multiple inner molds. The mold opening operation is convenient and efficient, thereby greatly improving the processing convenience and processing efficiency of the integrated casting mold for precast rooms. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is an isometric view of the prefabricated room integral casting mold during mold closing, provided in an embodiment of the present invention.

[0024] Figure 2 An isometric view of the core mold provided in an embodiment of the present invention;

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

[0026] Figure 4 This is a schematic diagram of the internal structure of the core mold provided in an embodiment of the present invention;

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

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

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

[0030] Figure 8 This is an isometric view of the core mold side enclosure in the open state provided in an embodiment of the present invention;

[0031] Figure 9 This is a top view of the core mold side enclosure in the open state provided in an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10-Core mold; 20-Outer mold; 21-Outer bottom mold; 22-Outer side 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; 113-First annular boss; 114-Second annular boss; 115-Annular slot; 116-Assembly body; 11 A - Side splicing 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 face; 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 Components: 231-First extension arm; 231a-First guide groove; 300-Second linkage structure; 310-Second turntable; 320-Second drive arm; 330-Second guide component; 331-Second extension arm; 331a-Second guide groove; 400-Third linkage structure; 410-Third turntable; 420-Third drive arm; 430-Third guide component; 431-Third extension arm; 431a-Third guide groove; 440-Positioning component; 441-Horizontal arm; 442-Plug-in arm; 510-Central area; 520-Outer ring area; 521-Strip hole; 521a-Drive strip segment; 521b-Following arc segment; 530-First plug-in protrusion; 600-Guide frame; 610-Connecting part; 620-First guide arm; 630-Second guide arm; 700-Rotating shaft; 800-Material conveying pipe. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] This embodiment provides a core mold 10, such as Figures 2-6 As shown, the device includes a core mold body 100 and a linkage unit 20A. The core mold body 100 includes an inner bottom mold 110. The corner 111 of the inner bottom mold 110 is detachably connected to a corner mold 120, and the side 112 is detachably connected to an inner side mold 130. The corner mold 120 and the adjacent inner side mold 130 cooperate to abut against each other's side end faces 14A 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 drive multiple corner molds 120 to move together or apart, and to drive multiple inner side molds 130 to move together or apart.

[0038] This embodiment also provides a prefabricated room integral casting mold, such as Figure 1 As shown, the system includes an outer mold 20 and the aforementioned core mold 10. The outer mold 20 includes an outer bottom mold 21 and a plurality of outer molds 22 surrounding the outer bottom mold 21. Among the plurality of outer molds 22, at most one outer mold 22 is a fixed outer mold 22, and the remaining outer molds 22 are movable outer molds 22. The movable outer molds 22 are detachably connected to the outer bottom mold 21 and adjacent outer molds 22. The core mold 10 is housed in the space enclosed by the outer mold 20, and the core mold 10 and the outer mold 20 form a casting cavity 30.

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

[0040] When the core mold 10 is used in the precast room integrated casting mold, it includes the assembly of the core mold 10, the assembly of the outer mold 20, the closing of the core mold 10 and the outer mold 20, casting and curing, and the opening of 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 abut against each other in sequence to form a side enclosure. Along the circumference of the side enclosure, the side end faces 14A on both sides of the corner mold 120 are flat and approximately fit with the side end faces 14A of the adjacent inner mold 130. The bottom ends of each corner mold 120 are connected to a corresponding corner 111, and each inner mold 130 is connected to a corresponding side edge 112.

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

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

[0044] Then, the core mold 10 and the outer mold 20 are joined together, as follows:

[0045] The assembled core mold 10 is inserted into the accommodating cavity through the top opening of the assembled outer mold 20 to form an integral 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 between the two. The side enclosure 14B of the core mold 10 and the outer mold 22 of the outer mold 20 form an annular side casting space. The bottom casting space and the side casting space are connected to form the casting cavity 30.

[0046] The core mold 10 may have an inner mold 130 with a first opening 131, and the outer mold 22 of the outer mold 20 may have a second opening corresponding to the first opening 131. The outer wall of the inner mold 130 may have an annular platform surrounding the first opening 131, or the inner wall of the outer mold 22 may have an annular platform surrounding the second opening. When the core mold 10 is assembled onto the outer mold 20, the first opening 131 and the second opening correspond, and the annular platform surrounds the first opening 131 and the second opening. The outer wall of the inner mold 130 or the inner wall of the outer mold 22 may be fitted with pre-assembled components such as reinforcing bars and pipes as needed.

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

[0048] The material conveying device feeds cement concrete and other materials 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 the preset height, thereby completing the integral casting and molding of the precast room. After casting, the integral casting mold containing the materials can be placed under natural conditions or specific curing conditions to cure the strength of the materials until the strength of the materials reaches 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 casting, the output end of the material conveying pipe 800 conveys material to the bottom casting space, and the material first fills the bottom casting space, and then gradually rises to fill the side casting space of the preset height.

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

[0051] Among them, such as Figure 2 , Figure 8 and Figure 9 As shown, the core mold 10 is opened by: disconnecting the corner molds 120, inner molds 130, and inner bottom mold 110; then, driving multiple corner molds 120 to converge via a linkage unit, thereby achieving synchronous opening of multiple corner molds 120 and the prefabricated room. Similarly, driving multiple inner molds 130 to converge via a linkage unit, thereby achieving synchronous opening of multiple inner molds 130 and the prefabricated room; subsequently, the core mold 10 in the opened state is removed from the top opening of the prefabricated room.

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

[0053] The core mold 10 provided in this embodiment is applied to the precast room integrated casting mold. Its linkage unit is linked with multiple corner molds 120 and multiple inner molds 130. In the mold opening operation, the linkage unit can realize the synchronous mold opening of multiple corner molds 120 and multiple inner molds 130. The mold opening operation is convenient and efficient, thereby greatly improving the processing convenience and processing efficiency of the precast room integrated casting mold for precast rooms.

[0054] In this embodiment, as Figure 1As shown, the outer mold 20 may further include a base 40. The top surface of the base 40 is provided with multiple sets of radially arranged guide rails 41, and each set of guide rails 41 corresponds one-to-one with multiple outer molds 22. The bottom of each outer mold 22 is provided with a wheel seat 22b, and the bottom of the wheel seat 22b is rotatably connected to a guide wheel 22a, which is rotatably connected to one of the sets of guide rails 41. When performing the mold opening operation on the outer mold 20, after removing the connection between the bottom mold and the outer molds 22 and adjacent outer molds 22, each outer mold 22 can be pushed along the corresponding guide rail 41, thereby conveniently completing the mold opening operation of the outer mold 20. 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 further includes a guide frame 600 and at least two linkage structures. The guide frame includes multiple guide arms arranged radially. The guide arms are slidably connected to the tops of the corner mold 120 and the inner mold 130, and the two side end faces 14A of the corner mold 120 are parallel to the extension direction of the corresponding guide arm. The linkage structure includes a turntable and multiple linkage components. The multiple linkage components of one linkage structure are respectively connected between the turntable and one of the corner molds 120, and the linkage components of the other linkage structure are respectively connected between the turntable and one of the inner molds 130. The linkage structure is configured such that, driven by the rotation of the turntable and guided by the guide frame 600, the linkage components can drive the corresponding multiple corner molds 120 or multiple inner molds 130 to move together or apart.

[0056] In use, each guide arm of the guide frame guides the movement of the corresponding corner mold or inner mold, driving the turntable to rotate. This allows multiple connected corner molds or inner molds to move synchronously together or apart along the corresponding guide arms via multiple linkage components. This enables synchronous opening and closing operations of multiple corner molds and multiple inner molds, thereby improving the processing convenience and efficiency of core molds and precast room integrated casting molds for precast rooms.

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

[0058] The guide frame 600 has multiple guide arms arranged radially, and a portion of the guide arms serve as first guide arms 620. The number of first guide arms 620 is equal to the number of corner molds 120, and they are slidably connected to each corner mold 120 in a one-to-one correspondence. The extension direction of the slidably connected first guide arms 620 is parallel to the extension direction of the side end faces 14A of the corner molds 120. The other portion of the guide arms serve as second guide arms 630. The number of second guide arms 630 is equal to the number of inner molds 130, and they are slidably connected to each inner mold 130 in a one-to-one correspondence. In the linkage unit 20A, the structures of each linkage structure are similar. The turntable is divided into a central region 510 and an outer ring region 520 surrounding the central region 510. Each strip hole 521 is provided in the outer ring region 520. One of the linkage structures is the first linkage structure 200, with its turntable as the first turntable 210 and its drive arm as the first drive arm 220. The second ends of the plurality of first drive arms 220 extend toward one of the corner molds 120 and are fixed to the corner mold 120. The other linkage structure is the second linkage structure 300, with its turntable as the second turntable 310 and its drive arm as the second drive arm 320. The second ends of the plurality of second drive arms 320 extend toward one of the inner molds 130 and are fixed to the inner mold 130. The turntables of the first linkage structure 200 and the second linkage structure 300 are arranged horizontally, and the drive arms are preferably also arranged horizontally.

[0059] When the linkage component adopts the form of a turntable, the core mold 10 in the assembled state is as follows: the first turntable 210 and the first drive 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 first insertion protrusion 530 of the first drive arm 220 can be inserted into the drive strip segment 521a of the strip hole 521; the second turntable 310 and the second drive 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, such as Figure 2 , Figure 8 and Figure 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 faces 14A on both sides of the corner mold 120 are parallel to the extension direction of the first guide arm 620 which is slidably connected, the corner mold 120 can slide along the extension direction of the first guide arm 620 without interference. Correspondingly, as the drive strip segment 521a rotates, the first insertion protrusion 530 gradually approaches the central region 510 radially under the guidance of the drive strip segment 521a and the first guide arm 620, and the corresponding corner mold 120 is pulled towards the central region 510 by the first drive arm 220 until the corner mold 120 is separated from the inner mold 130 and continues to move inward a certain distance, thereby realizing the synchronous opening of multiple corner molds 120 and the prefabricated room.

[0061] Continuing, similar to the synchronous mold opening of multiple corner molds 120 by the first linkage structure 200, the second turntable 310 rotates circumferentially. When the first insertion protrusion 530 of the second linkage structure 300 slides into its driving strip segment 521a, as the driving strip segment 521a rotates, the first insertion protrusion 530 gradually approaches the central region 510 radially 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 region 510 through the second driving arm 320, thereby realizing the synchronous mold 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 mold opening 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 precast room integrated casting mold. Its two linkage structures are respectively linked with multiple corner molds 120 and multiple inner molds 130. In the mold opening operation, the synchronous mold opening of multiple corner molds 120 and multiple inner molds 130 can be realized by driving the rotation of the turntable of the two linkage structures. The mold opening operation is convenient and efficient, thereby greatly improving the processing convenience and processing efficiency of the precast room integrated casting mold for precast rooms.

[0063] The guide frame 600 allows the entire core mold 10, excluding the inner bottom mold 110, to be lifted out after the mold opening operation, thereby further improving the ease of mold opening of the core mold 10 and correspondingly improving the processing convenience and efficiency of the precast room integrated casting mold for precast rooms.

[0064] In this embodiment, as Figures 2-6 As shown, the guide frame 600 is pivotally connected to 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 both fixedly sleeved on the rotating shaft 700 and arranged vertically at intervals. The first insertion 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 first end of the driving strip segment 521a, and the follower arc segment 521b is coaxially arranged with the central region 510. The first insertion protrusion 530 of the second linkage structure 300 is slidably engaged with the corresponding follower arc segment 521b.

[0065] The circumferential extension areas of the strip-shaped holes 521 in the first linkage structure 200 and the second linkage structure 300 are consistent. When the core mold 10 is opened, the rotating shaft 700 can be driven to rotate, thereby causing the first turntable 210 and the second turntable 310 to rotate synchronously. 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 region 510 in the first linkage structure 200 gradually decreases. The first insertion protrusion 530 is located at the driving strip segment 521a and the first... Under the guidance of the guide arm 620, the corner mold 120 gradually approaches the central region 510. Under the pulling action of the first insertion protrusion 530 and the first drive arm 220, the corner mold 120 simultaneously approaches the central region 510 and moves away 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 region 510 remains unchanged, and the first insertion protrusion 530 remains fixed under the guidance of the follower arc segment 521b and the second guide arm 630.

[0066] Continuing into 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 region 510 continues to gradually decrease. The first insertion protrusion 530 continues to pull the corner mold 120 toward the central region 510 via the first driving arm 220, thereby reducing the interference of the corner mold 120 on the opening of the inner mold 130. In the second linkage structure 300, the first insertion protrusion 530 automatically follows the arc. Segment 521b enters the drive strip segment 521a, and the radial distance between the drive strip segment 521a and the central region 510 gradually decreases. Under the guidance of the drive strip segment 521a and the second guide arm 630, the first insertion protrusion 530 gradually approaches the central region 510. Under the pulling action of the first insertion protrusion 530 and the second drive arm 320, the inner mold 130 simultaneously approaches the central region 510 and leaves the pre-support direction, thereby realizing the mold opening of multiple inner molds 130 and the prefabricated room.

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

[0068] In this embodiment, the core mold 10, through the aforementioned rotating shaft 700, can simultaneously open multiple corner molds 120 and multiple inner molds 130 by simply rotating the rotating shaft 700, while ensuring stable operation of the mold opening process. This further improves the ease and efficiency of opening the core mold 10, and correspondingly improves the processing convenience and efficiency of the precast room integrated casting mold for precast rooms. At the same time, the corner molds 120 and inner molds 130 can be assembled by simply rotating the rotating shaft 700, thereby improving the assembly convenience and efficiency of the core mold 10, and correspondingly improving the processing convenience and efficiency of the precast room integrated casting mold for precast rooms.

[0069] Specifically, a rotation drive can be provided in the guide frame 600, and the rotation drive is connected to the rotating shaft 700 to drive the rotation of the rotating shaft 700; wherein, the rotation drive can be a drive 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. Multiple first drive arms 220 of the first linkage structure 200 are evenly spaced along the circumference of the first turntable 210, and multiple second drive arms 320 of the second linkage structure 300 are evenly spaced along the circumference of the second turntable 310. Multiple guide arms in the guide frame 600 can be connected to the connecting part 610 and are evenly spaced along the circumference of the connecting part 610. The vertical axis is rotatably connected to the center position of the connecting part 610 of the guide frame 600. The connecting part 610, the first turntable 210, and the second turntable 310 are arranged coaxially. In the first linkage structure 200, the lengths of the multiple first drive arms 220 are all equal. When the first linkage structure 200 is assembled onto the corner mold 120, there are no restrictions on the circumferential corresponding positions of the first drive arms 220 and the corner mold 120. Similarly, when the second linkage structure 300 is assembled onto the inner mold 130, there are no restrictions on the circumferential corresponding positions of the second drive arms 320 and the inner mold 130. This improves the ease 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 rotation of the turntable can drive each corner mold 120 or each inner mold 130 to move towards the central region 510 at equal speeds through the drive arms, 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, the circumferential position of the guide frame 600 connected to the corner mold 120 and the inner mold 130 is also unrestricted, further improving the ease of assembling the core mold 10.

[0071] Specifically, such as 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. The two are molded together to form a prefabricated room with a regular rectangular shape.

[0072] In this embodiment, as Figure 6 As shown, the first linkage structure 200 includes a first guide member 230 rotatably sleeved on the rotating shaft 700. The first guide member 230 includes a plurality of first guide grooves 231a arranged radially. The plurality of drive 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 all parallel to the corresponding guide arms. Multiple first guide grooves 231a are located one-to-one below multiple first guide arms 620 and parallel to the corresponding first guide arms 620. When the first turntable 210 is driven to rotate, the first insertion protrusion 530 is driven to move radially closer to or away from the central region 510 by the drive strip segment 521a. During this process, the first guide arm 620 can guide the radial movement of the first insertion protrusion 530 through the corner mold 120 and the first drive arm 220. The first guide groove 231a can guide the radial movement of the first insertion protrusion 530 by the first drive arm 220, 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 portion, the outer periphery of which is provided with a plurality of radially extending first extension arms 231, each first extension arm 231 being provided with a first guide groove 231a along its extension direction; the first sleeve portion may be rotatably sleeved on the rotating shaft 700 by bearings to achieve circumferential relative rotation and axial relative fixation with the rotating shaft 700.

[0073] Similarly, such as Figure 5As shown, 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 drive 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 all parallel to the corresponding guide arms. Multiple second guide grooves 331a are located one-to-one below multiple second guide arms 630 and parallel to the corresponding second guide arms 630. When the second turntable 310 is driven to rotate, the first insertion protrusion 530 is driven to move radially closer to or away from the central region 510 by the drive strip segment 521a. During this process, the second guide arm 630 can guide the radial movement of the first insertion protrusion 530 through the inner mold 130 and the second drive arm 320. The second guide grooves 331a can guide the radial movement of the first insertion protrusion 530 by the second drive arm 320, 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, each second extension arm 331 being provided with a second guide groove 331a along its extension direction; the second sleeve portion may be rotatably sleeved on the rotating shaft 700 via a bearing to achieve circumferential relative rotation and axial relative fixation with the rotating shaft 700.

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

[0075] The third guide member 430 may specifically include a third sleeve portion. The outer periphery of the third sleeve portion is provided with a plurality of radially extending third extension arms 431. Each third extension arm 431 is provided with a third guide groove 431a along its extension direction. Specifically, the third sleeve portion can be rotatably sleeved onto the rotating shaft 700 through a bearing to achieve axial relative fixation with the rotating shaft 700. Specifically, the third sleeve portion or the third extension arm 431 can be fixedly connected to the guide frame 600 through a connecting arm or detachably fixed to the inner bottom mold 110. On the basis of ensuring that it does not interfere with the rotation of each turntable, the relative fixation of the circumferential position of the third guide member 430 and the rotating shaft 700 is achieved.

[0076] In the third linkage structure 400, the turntable is the third turntable 410 and the drive arm is the third drive arm 420. During the assembly stage, the pouring and curing stage after the core mold 10 is closed with the outer mold 20, multiple third drive arms 420 abut against different positions of the side enclosure 14B through positioning parts 440, thereby strengthening the strength and stability of the side enclosure 14B. In particular, it reduces the inward pressure exerted by the material in the pouring cavity 30 on the side enclosure 14B during the construction and curing stages, which may cause the corner mold 120 and the inner mold 130 to deform and shift inward, resulting in gaps between them. This allows material to leak into the core mold 10 through the gaps, affecting the precast room forming effect and damaging the core mold 10.

[0077] like Figure 4 and Figure 6As shown, the strip-shaped holes 521 of the third linkage structure 400 and the first linkage structure 200 only include driving strip segments 521a, and the circumferential extension areas of the driving strip segments 521a in both are consistent. When the core mold 10 is opened, the drive shaft 700 rotates to drive the first turntable 210, the second turntable 310, and the third turntable 410 to rotate synchronously with it. In the first stage, as the first turntable 210, the second turntable 310, and the third turntable 410 rotate, the radial distance between the driving strip segments 521a and the central region 510 in the first linkage structure 200 and the third linkage structure 400 gradually decreases, and the rate of decrease of the radial distance between the driving strip segments 521a and the central region 510 in the third linkage structure 400 is also greater. The third drive arm 420 drives the positioning member 440 to retract towards the central region 510 at a greater rate, thereby escaping the abutting and pushing action of the diagonal mold 120 and the inner mold 130 and reducing the interference of the positioning member 440 with the mold opening operation of the diagonal mold 120 and the inner mold 130. At the same time, the first drive arm 220 pulls each corner mold 120 to gradually detach from the inner mold 130 and move towards the central region 510 at a speed less than that of the positioning member 440, thereby realizing the synchronous mold opening of multiple corner molds 120 and ensuring its smooth mold opening. In the second linkage structure 300, the positions of the second drive arm 320 and the first insertion protrusion 530 remain unchanged, and the positions of the inner mold 130 remain different accordingly.

[0078] Continuing, in the second stage, as the first turntable 210, the second turntable 310, and the third turntable 410 rotate, the positioning component 440, driven by the third drive arm 420, approaches the central region 510 of the third turntable 410 at a relatively high speed. The corner mold 120, located outside the positioning component 440, approaches the central region 510 of the first turntable 210 at a relatively low speed under the drive of the first drive arm 220. In the second linkage structure 300, the first insertion protrusion 530 enters the drive strip section 521a from the follower arc segment 521b. The inner mold 130 remains outside the corner mold 120 and gradually approaches the central region 510 of the second turntable 310 under the drive of the second drive arm 320, thereby realizing the synchronous mold opening of multiple inner molds 130 and the prefabricated room, and ensuring the smooth progress of its mold opening.

[0079] In this embodiment, the third guide groove 431a corresponds to a plurality of corner molds 120, and the third guide groove 431a is parallel to the two side end faces 14A of the corresponding corner mold 120. The connection between adjacent corner molds 120 and inner molds 130 is provided with insertion grooves 14C. The positioning member 440 includes a horizontal arm 441 fixed to the corresponding drive arm, and both ends of the horizontal arm 441 are provided with insertion arms 442, and the two insertion arms 442 are inserted into the insertion grooves 14C on both sides of the corresponding corner mold 120. The third guide groove 431a, the first guide arm 620, and the first guide groove 231a are all arranged vertically and in parallel. When the core mold 10 is assembled, each third drive arm 420 drives two plug-in arms 442 through the cross arm 441 to be plugged into the plug-in grooves 14C on both sides of the corner mold 120, thereby limiting the contact between the two sides of the corner mold 120 and the two adjacent inner molds 130 facing the corner mold 120. Correspondingly, multiple positioning parts 440 can limit the contact between the joints 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 corner molds 120 and inner molds 130 during the casting and curing stages.

[0080] In this embodiment, as Figures 3-6 As shown, the corner mold 120 has a first side extension rib 121 extending inward at the edge of its side end face 14A, and one side rib surface of the first side extension rib 121 is coplanar with the side end face 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 face 14A, and one side rib surface of the second side extension rib 132 is coplanar with the side end face 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 serves two purposes. First, while ensuring that the corner mold 120 can move relative to the inner mold 130 along its side end face 14A to achieve mold opening and closing operations, it effectively increases the contact area between the corner mold 120 and the inner mold 130, thereby further reducing material leakage between the corner mold 120 and the inner mold 130 during casting. Second, the first side extension rib 121 and the second side extension rib 132 can provide support between the corner mold 120 and the inner mold 130 during casting. The mold 130 serves a supporting function to reduce deformation and displacement of the corner mold 120 and the inner mold 130, thereby further reducing material leakage between the corner mold 120 and the inner mold 130 during the casting process. On the other hand, the insertion groove 14C is provided on the first side extension rib 121 and the second side extension rib 132. While ensuring that the insertion groove 14C and the insertion arm 442 cooperate and limit the insertion, the setting of the insertion groove 14C reduces the damage to the corner mold 120 and the inner mold 130 caused by the insertion groove 14C, which could lead to 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 drive arms 220 of multiple sets of first linkage structures 200 can support different vertical positions of the corner mold 120, the second drive arms 320 of multiple sets of second linkage structures 300 can support different vertical positions of the inner mold 130, and the third drive arms 420 and positioning components 440 of multiple sets 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 the mold is opened, the first drive arms 220 of multiple sets of first linkage structures 200 can apply a pulling action to different vertical positions of the corner mold 120, and the second drive arms 320 of multiple sets of second linkage structures 300 can apply a pulling action to different vertical positions of the inner mold 130, thereby further improving the synchronous mold opening stability 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 core mold 10 assembly process.

[0082] like Figure 4 As shown, there are three linkage units 20A, which are arranged vertically at intervals on the rotating shaft 700.

[0083] In this embodiment, as Figure 4 and Figure 7 As shown, the top edge of the inner bottom mold 110 is surrounded by a first annular boss 113, and the edge of the first annular boss 113 is surrounded by a second annular boss 114. 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 side mold 130 are both provided with second insertion protrusions. The annular insertion platform formed by each second insertion protrusion is inserted into the annular slot 115. The corner mold 120 and the inner side mold 130 are detachably connected to the second annular boss 114 through the connector 150. During assembly, the second insertion protrusions of the corner mold 120 and the inner mold 130 can be inserted into the annular slot 115 to position the connection between the corner mold 120 and the inner mold 130 and the inner bottom mold 110, thereby improving the convenience and positional accuracy of connecting the corner mold 120 and the inner mold 130 to the inner bottom mold 110. Continuing, the corner mold 120 and the inner mold 130 are detachably connected to the first annular boss 113 by means of connectors 150, such as bolts and nuts.

[0084] In this embodiment, as Figure 4 and Figure 7As shown, the inner bottom mold 110 includes multiple splicing bodies 116. The side splicing surfaces 11A of adjacent splicing bodies 116 are inclined surfaces. A top extension rib 11B extends upward from the edge of the side splicing surface 11A of each splicing body 116, and the rib surface of the splicing side of the top extension rib 11B is coplanar with the side splicing surface 11A. On the one hand, the inner bottom mold 110 adopts the form of multiple splicing bodies 116. When opening the inner bottom mold 110, individual splicing bodies 116 with smaller areas can be disassembled from the prefabricated room in sequence, thereby improving the ease of opening the inner bottom mold 110. On the other hand, setting the side splicing surfaces 11A of adjacent splicing bodies 116 to be inclined surfaces and providing top extension ribs 11B 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, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions 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 system includes a core mold body (100) and a linkage unit (20A). The core mold body (100) includes an inner bottom mold (110). The corner (111) of the inner bottom mold (110) is detachably connected to a corner mold (120), and the side (112) is detachably connected to an inner side mold (130). The corner mold (120) and the adjacent inner side mold (130) abut against each other on their opposite side end faces (14A) to form a side enclosure (14B). Along the circumference of the side enclosure (14B), the side end faces (14A) on both sides of the corner mold (120) are both planar and approximately fit with the side end faces (14A) of the adjacent inner side mold (130). The linkage unit (20A) is connected to the corner mold (120) and the inner mold (130), and is configured to: drive multiple corner molds (120) to move together or apart, and drive multiple inner molds (130) to move together or apart; The linkage unit (20A) includes a guide frame (600) and at least two linkage structures. The guide frame includes multiple guide arms arranged radially. The guide arms are slidably connected to the top of the corner mold (120) and the inner mold (130) in a one-to-one correspondence. The two side end faces (14A) of the corner mold (120) are parallel to the extension direction of the corresponding guide arms. The linkage structure includes a turntable and multiple linkage components. The multiple linkage components of one linkage structure are respectively connected between the turntable and one of the corner molds (120), and the linkage components of another linkage structure are respectively connected between the turntable and one of the inner molds (130). The linkage structure is configured such that, driven by the rotation of the turntable and guided by the guide frame (600), the linkage components can drive the corresponding multiple corner molds (120) or multiple inner molds (130) to move together or apart. The turntable is provided with multiple strip-shaped holes (521) arranged circumferentially around its central region (510), and each strip-shaped hole (521) includes a driving strip segment (521a) whose radial distance from the central region (510) gradually decreases along its first extension direction; the linkage includes a driving arm, the first end of the driving arm is provided with a first insertion protrusion (530), and multiple first insertion protrusions (530) are respectively slidably engaged with one of the strip-shaped holes (521); the second end of the driving arm of one linkage structure is fixedly connected to multiple corner molds (120), and the second end of the driving arm of another linkage structure is fixedly connected to multiple inner molds (130). 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), and the linkage structure corresponding to the inner mold (130) is a 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 vertically at intervals. The first insertion 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 includes a follower arc segment (521b), which is connected to the head end of the driving strip segment (521a) along the first extension direction of the strip hole (521), and the follower arc segment (521b) is coaxially arranged with the central region (510), and the first insertion protrusion (530) of the second linkage structure (300) is slidably engaged with the corresponding follower arc segment (521b).

2. The core mold according to claim 1, characterized in that, The first linkage structure (200) includes a first guide member (230) rotatably sleeved on the rotating shaft (700). The first guide member (230) includes 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 all 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 drive 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 all parallel to the corresponding guide arms.

3. The core mold according to claim 1 or 2, characterized in that, The linkage unit (20A) has three linkage structures, one of which is the third linkage structure (400). In the third linkage structure (400), the turntable is fixedly sleeved on the rotating shaft (700), and the first insertion protrusion (530) is slidably inserted into the corresponding drive 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). The third guide member (430) includes a plurality of third guide grooves (431a) arranged radially. The plurality of drive arms of the third linkage structure (400) are slidably connected to the plurality of third guide grooves (431a) one by one, and the second end of each drive arm is connected to a positioning member (440). The positioning member (440) abuts against different areas of the side enclosure (14B) in the circumference. Along the first extending direction, the rate at which the radial distance between the driving strip segment (521a) of the first linkage structure (200) and the central region (510) decreases is a first rate, and the rate at which the radial distance between the driving strip segment (521a) of the third linkage structure (400) and the central region (510) decreases is a third rate, the third rate being greater than the first rate.

4. The core mold according to claim 3, characterized in that, The third guide groove (431a) corresponds to one of the multiple corner molds (120), and the third guide groove (431a) is parallel to the two side end faces (14A) of the corresponding corner mold (120); the connection between the adjacent corner mold (120) and the inner mold (130) is provided with a plug-in groove (14C), the positioning member (440) includes a horizontal arm (441) fixed to the corresponding drive arm, and both ends of the horizontal arm (441) are provided with plug-in arms (442), and the two plug-in arms (442) are plugged into the plug-in grooves (14C) on both sides of the corresponding corner mold (120).

5. The core mold according to claim 4, characterized in that, The corner mold (120) has a first side extension rib (121) extending inward at the edge of its side end face (14A), and one side rib surface of the first side extension rib (121) is coplanar with the side end face (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 face (14A), and one side rib surface of the second side extension rib (132) is coplanar with the side end face (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).

6. The core mold according to claim 1 or 2, characterized in that, The top edge of the inner bottom mold (110) is provided with a first annular boss (113), and the edge of the first annular boss (113) is provided with a second annular boss (114). 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 side mold (130) are provided with second insertion protrusions. The annular insertion platform formed by each second insertion protrusion is inserted into the annular slot (115). The corner mold (120) and the inner side mold (130) are detachably connected to the second annular boss (114) through a connector (150). And / or, the inner bottom mold (110) includes multiple splicing bodies (116), the side splicing surfaces (11A) of adjacent splicing bodies (116) are inclined surfaces, and the splicing body (116) has a top extension rib (11B) extending upward from the edge of its side splicing surface (11A), and the rib surface of the splicing side of the top extension rib (11B) is coplanar with the side splicing surface (11A).

7. A precast room integrated casting mold, characterized in that, The system includes an outer mold (20) and a core mold (10) as described in any one of claims 1-6. The outer mold (20) includes an outer bottom mold (21) and a plurality of outer side molds (22) surrounding the outer bottom mold (21). Among the plurality of outer side molds (22), at most one outer side mold (22) is a fixed outer side mold (22), and the remaining outer side molds (22) are movable outer side molds (22). The movable outer side molds (22) are detachably connected to the outer bottom mold (21) and the adjacent outer side molds (22). The core mold (10) is housed in the space enclosed by the outer mold (20), and the core mold (10) and the outer mold (20) form a casting cavity (30).

Images