Core mold component of laminated shear wall mold shell, prefabricated concrete mold shell and manufacturing method

Abstract

The invention relates to a core mold component of a superimposed shear wall mold shell, a prefabricated concrete mold shell and a manufacturing method, and relates to the technical field of fabricated concrete construction. The core mold component of the laminated shear wall mold shell comprises a first core mold assembly and a second core mold assembly; the first core mold assembly comprises a first side plate, a first arc-shaped end plate and a second side plate which are connected in sequence; the second core mold assembly comprises a third side plate, a second arc-shaped end plate and a fourth side plate which are connected in sequence; snap fastener structures capable of clamping the first core mold assembly and the second core mold assembly together are arranged at the end parts of the first core mold assembly and the second core mold assembly; the third side plate and the fourth side plate are further provided with a first force holding rod enabling the third side plate and the fourth side plate to draw close and deform. The invention further discloses a prefabricated concrete formwork manufactured through the core formwork component and a manufacturing method of the prefabricated concrete formwork. The prefabricated concrete formwork is convenient to manufacture, high in efficiency and stable and reliable to use.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated concrete construction, and in particular to a core mold component of a composite shear wall mold, a precast concrete mold, and a manufacturing method. Background Art

[0002] In recent years, in order to alleviate problems such as labor shortage, short construction period, low-carbon and environmental protection, my country has begun to promote prefabricated buildings. As an emerging green, environmentally friendly and energy-saving building, it has the advantages of fast construction speed, little impact from climatic conditions, saving on-site labor, and improving building quality. It has become a new direction for the development of the future construction industry.

[0003] The fully prefabricated assembled concrete shear wall has a large deadweight, and requires high performance of equipment for transportation and lifting. The construction steps during on-site assembly are cumbersome and the construction quality is difficult to detect.

[0004] Prefabricated composite shear walls are usually composed of two layers of prefabricated reinforced concrete slabs connected by trusses or connectors to form a wall panel component with a middle cavity. After on-site installation, concrete is poured to fill the middle cavity to form a concrete wall panel. Currently, prefabricated composite shear walls have begun to be used in engineering. Compared with fully prefabricated concrete shear walls, prefabricated composite shear walls have the advantages of light weight, low processing and installation precision requirements, and strong fault tolerance. It is a promising prefabricated concrete structural system.

[0005] Precast concrete formwork is an important part of the prefabricated composite shear wall as a formwork. In the production process of precast concrete formwork, an intermediate cavity needs to be formed, which requires the use of core mold components. Currently, in the production process of precast concrete formwork, there are still problems such as cumbersome steps and low production efficiency. In addition, in the construction application of prefabricated composite shear walls, there are also problems such as difficulty in ensuring the quality of steel bar connections, difficulty in concrete pouring and vibration, and the inability of precast concrete formwork and cast-in-place concrete to overlap and bear force, which are not conducive to the normal development of the construction period and bring hidden dangers to structural safety. Summary of the invention

[0006] In order to improve the production efficiency of assembled composite shear walls and reduce the production cost of precast concrete formwork, the present application provides a core mold component of a composite shear wall formwork, a precast concrete formwork and a manufacturing method.

[0007] In the first aspect, the core mold component of a composite shear wall formwork provided by the present application adopts the following technical solution: A core mold component of a composite shear wall formwork, comprising a first core mold component and a second core mold component; The first core mold assembly comprises a first side plate and a second side plate which are arranged relatively spaced apart, wherein one end of the first side plate is fixedly connected to one end of the second side plate via a first arc-shaped end plate, and a first opening is formed between the other end of the first side plate and the other end of the second side plate; The second core mold assembly comprises a third side plate and a fourth side plate which are arranged relatively spaced apart, wherein the third side plate is fixedly connected to one end of the fourth side plate via a second arc-shaped end plate, and a second opening is formed between the other end of the third side plate and the other end of the fourth side plate; A snap-on structure capable of snapping the first side panel and the third side panel end, and the second side panel and the fourth side panel end together is provided at one end of the first side panel near the first opening and one end of the third side panel near the second opening; The third side plate and the fourth side plate are also provided with a first force holding rod capable of bringing the two closer together and deforming.

[0008] In the present application, the core mold component is divided into a first core mold component and a second core mold component according to structural differences, and the second core mold component is provided with a first force holding rod capable of exerting pressure. When in use, pressure is applied to the first force holding rod on the second core mold component to deform the third side plate and the fourth side plate close together, so that the first core mold component and the second core mold component can be mutually embedded and combined, and a snap-on connection is formed through a sub-screw structure, and the first core mold component and the second core mold component form a core mold component.

[0009] By adopting the above-mentioned technical scheme, the first core mold assembly and the second core mold assembly can be conveniently assembled and disassembled, the hole-forming process of the precast concrete mold can be effectively realized, the production and demolding efficiency of the precast concrete mold is improved, the production efficiency of the precast concrete mold is improved, the production cost of the precast concrete mold is reduced, and the molding quality and structural stability of the precast concrete mold are ensured.

[0010] Optionally, the male and female buckle structure includes grooves arranged on the outer sides of the ends of the third side panel and the fourth side panel and protrusions arranged on the inner sides of the ends of the first side panel and the second side panel, and the protrusions can be embedded in the corresponding grooves to form a snap connection.

[0011] By adopting the above technical solution, the groove and protrusion design of the snap-on structure allows the first core mold assembly to be tightly connected with the second core mold assembly, ensuring the integrity and stability of the core mold components and avoiding misalignment or falling off during the pouring process. In addition, this clamping method facilitates the assembly and disassembly of the core mold components, improves the reuse rate of the core mold components, and reduces the production cost of the precast concrete formwork.

[0012] Optionally, the third side plate and the fourth side plate have first slots recessed toward opposite sides, the first holding rod is inserted into the corresponding first slots, and the slot width of the first slot is smaller than the diameter of the first holding rod.

[0013] By adopting the above technical solution, the first holding rod is firmly fixed to the third side plate and the fourth side plate to prevent it from falling off during the pressure application process, thereby ensuring the stability and reliability of the core mold component, improving the hole quality of the precast concrete mold shell, and facilitating installation.

[0014] Optionally, a support rib is further provided between the first side plate and the second side plate, and a force rod is provided on the support rib; and a second force holding rod is provided on both the first side plate and the second side plate.

[0015] By adopting the above technical solution, the support ribs enhance the stability between the first side plate and the second side plate, improve the overall rigidity of the core mold component, avoid deformation of the first side plate and the second side plate due to external force during the pouring process, and ensure the precise forming of the precast concrete form. The setting of the secondary force rod and the second force holding rod enables the core mold component to deform more conveniently when removed, thereby smoothly realizing the separation of the core mold component from the precast concrete form, improving demoulding efficiency and reducing operation difficulty.

[0016] Optionally, the first side panel and the second side panel have second slots recessed toward opposite sides, the second holding rod is inserted into the corresponding second slot, and the slot width of the second slot is smaller than the diameter of the second holding rod; a third slot is provided on the upper side surface of the support rib, the slave rod is inserted into the corresponding third slot, and the slot width of the third slot is smaller than the diameter of the slave rod.

[0017] By adopting the above technical solution, the second holding rod and the follower rod can be firmly inserted into their corresponding second and third slots, preventing the second holding rod and the follower rod from loosening and falling off due to vibration or other external factors during the use of the core mold component, thereby ensuring the stability and reliability of the core mold component. In addition, the slot width of the second and third slots is smaller than the diameter design of the second holding rod and the follower rod, further enhancing the locking effect of the second holding rod and the follower rod, ensuring that the core mold component can still maintain good structural integrity when subjected to external forces, and improving the manufacturing quality and production efficiency of the precast concrete formwork.

[0018] Optionally, there is a distance between the support rib and the protrusions on the first side plate and the second side plate, and the distance is 15 to 50 mm.

[0019] By adopting the above-mentioned technical solution, the support ribs can be appropriately deformed when subjected to external force, thereby ensuring smooth detachment of the snap-on structure during the demoulding process of the core mold component, avoiding insufficient deformation of the support ribs due to too small a spacing and affecting the demoulding effect, while also preventing the support ribs from having insufficient support strength due to too large a spacing and affecting the overall stability of the core mold component.

[0020] Optionally, the sides of the first holding rod, the second holding rod and the follower rod all have a plane, and the maximum radial dimension h of the first holding rod, the second holding rod and the follower rod perpendicular to the plane in the radial direction is smaller than the width b of the plane.

[0021] By adopting the above-mentioned technical solution, these rods can be inserted and fixed in the corresponding slots more stably to prevent them from being separated during use, thereby ensuring the overall stability of the core mold component.

[0022] Optionally, the first side plate, the second side plate and the first arcuate end plate are integrally formed, the third side plate, the fourth side plate and the second arcuate end plate are integrally formed, and the first arcuate end plate and the second arcuate end plate have convex portions on their outer circumferential surfaces; the slope of one side of the convex portion is greater than the slope of the other side.

[0023] By adopting the above technical solution, the overall stability and strength of the core mold component are improved. The convex point portion allows the manufactured precast concrete form to better contact with the cast-in-place concrete during the concrete pouring process, thereby enhancing the stability and reliability of the entire composite shear wall. The slope of one side of the convex point portion is greater than the slope of the other side, making it easier to pull the core mold component out of the concrete when it is removed, reducing the resistance during the removal process and improving work efficiency.

[0024] In the second aspect, the present application provides a precast concrete formwork for a composite shear wall using the following technical solution: A precast concrete formwork for a composite shear wall is made by using the core mold component. The precast concrete formwork comprises a first concrete slab and a second concrete slab arranged in parallel and spaced apart, wherein a plurality of longitudinal ribs are arranged between the first concrete slab and the second concrete slab; two adjacent longitudinal ribs and the first concrete slab and the second concrete slab are combined to form a through vertical hole, wherein the through vertical hole is formed by the core mold component; the outermost longitudinal ribs and the first concrete slab and the second concrete slab are combined to form a through half hole, wherein the through half hole is formed by the first core mold component or the second core mold component in the core mold component; A wire mesh is arranged inside the first concrete slab and the second concrete slab, a tensioning bar is arranged inside the longitudinal rib, and a hanger is arranged on the top of the first concrete slab, the second concrete slab or the longitudinal rib.

[0025] The precast concrete formwork in the present application is provided with a plurality of through vertical holes, the thickness of the formwork is small and a steel wire mesh is provided inside to improve the rigidity of the formwork. The precast concrete formwork in the present application can effectively improve the quality of the precast concrete formwork and reduce its cost.

[0026] In a third aspect, the present application provides a method for manufacturing a precast concrete formwork for a composite shear wall, which adopts the following technical solution: A method for manufacturing a precast concrete formwork for a composite shear wall, using the core mold component to manufacture the precast concrete formwork, the manufacturing method comprises the following steps: S1: Setting up the table formwork: Setting up two parallel and spaced formworks, and tying the wire mesh and tie bars between the two formworks; S2: Setting the core mold component: according to the set middle cavity position of the precast concrete formwork, a plurality of groups of core mold components are set correspondingly. When setting the core mold components, pressure is applied to the holding rod on the second core mold assembly to make the third side plate and the fourth side plate of the second core mold assembly move closer and deform, so that the sub-screw structure on the first core mold assembly and the second core mold assembly forms a snap connection, and the first core mold assembly and the second core mold assembly form a core mold component; S3: Pouring: pouring concrete and vibrating; S4: demolding: after the concrete strength is improved, the core mold component and the table mold are removed; when the core mold component is removed, the rotating shaft mechanism is installed on the follower rod and the second holding rod in the first core mold assembly, the rotating shaft component drives the follower rod in the first core mold assembly to move, the supporting ribs in the first core mold assembly are deformed, and the snap-fit ​​structure is displaced outward; at the same time, pressure is applied to the first holding rod in the second core mold assembly, the snap-fit ​​structure is deformed, and the second core mold assembly can be separated from the first core mold assembly and pulled out along the length direction of the mold shell to realize the separation of the core mold component and the concrete mold shell to form a hole.

[0027] By adopting the above technical solution, an efficient hole-forming process for the precast concrete formwork of the composite shear wall is realized, the production efficiency of the precast concrete formwork is improved, the production cost is reduced, and the quality and reliability of the formwork are ensured.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, the specially designed core mold parts can realize convenient assembly and disassembly of the first core mold assembly and the second core mold assembly, which can effectively realize the hole-forming process of the precast concrete mold, improve the production and demolding efficiency of the precast concrete mold, improve the production efficiency of the precast concrete mold, reduce the production cost of the precast concrete mold, and ensure the molding quality and structural stability of the precast concrete mold.

[0029] 2. In the present application, by providing a first force holding rod, the third side plate and the fourth side plate can be deformed by moving closer together when pressure is applied, thereby conveniently assembling the first core mold assembly and the second core mold assembly into a whole, simplifying the installation process of the core mold components and improving the convenience of construction.

[0030] 3. In the present application, a follower rod is arranged on the supporting rib, which cooperates with the rotating shaft mechanism to effectively deform the first core mold assembly, so that the sub-fastener structure is displaced outward, thereby realizing the smooth separation of the core mold component from the precast concrete mold shell, avoiding the damage to the mold shell that may be caused in the traditional demoulding process, and improving the reuse rate of the mold shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the first core mold assembly and the second core mold assembly when they are separated in Example 1 of the present application.

[0032] Figure 2 It is a structural schematic diagram of the combination of the first core mold assembly and the second core mold assembly in Example 1 of the present application.

[0033] Figure 3 It is a schematic diagram of the cross-sectional structure of the first force holding rod, the second force holding rod and the follower force rod in Example 1 of the present application.

[0034] Figure 4 It is a three-dimensional structural schematic diagram of the rotating shaft mechanism in this application.

[0035] Figure 5 It is a structural schematic diagram of the first core mold assembly and the second core mold assembly when they are separated in Example 2 of the present application.

[0036] Figure 6 It is a structural diagram of the combination of the first core mold assembly and the second core mold assembly in Example 2 of the present application.

[0037] Figure 7 It is a schematic diagram of the structure of the bump portion in Example 2 of the present application.

[0038] Figure 8 It is a schematic diagram of the top view structure of the composite shear wall formwork in this application.

[0039] Fig. 9 It is a three-dimensional structural schematic diagram of the composite shear wall formwork in this application.

[0040] In the figure: 10. first core mold assembly; 11. first side plate; 12. second side plate; 13. first arc-shaped end plate; 14. first opening; 15. second clamping groove; 16. second force holding rod; 17. supporting rib; 18. third clamping groove; 19. slave force rod; 20. second core mold assembly; 21. third side plate; 22. fourth side plate; 23. second arc-shaped end plate; 24. second opening; 25. first slot; 26. first holding rod; 30. snap-on buckle structure; 31. groove; 32. protrusion; 40, convex point; 50. First concrete slab; 51. Second concrete slab; 52. Longitudinal ribs; 53. Through vertical holes; 54. Through half holes; 55. Steel mesh; 56. Tie bars; 57. Hanging parts; 58. Limiting components; 60. Rotating shaft mechanism; 61. Rotating shaft portion; 62. Rotating mold portion; 63. Connecting rod. DETAILED DESCRIPTION

[0041] The following will be combined with the attached Figure 1 To Attachment Fig. 9 , the technical solutions in the embodiments of the present invention are clearly and completely described. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0042] Example 1 Reference Figure 1 and Figure 2As shown, a core mold component of a composite shear wall formwork provided in an embodiment of the present application includes a first core mold assembly 10 and a second core mold assembly 20; the first core mold assembly 10 includes a first side plate 11 and a second side plate 12 arranged relatively at a distance, the first side plate 11 and one end of the second side plate 12 are fixedly connected by a first arc-shaped end plate 13, the first side plate 11, the second side plate 12 and the first arc-shaped end plate 13 are integrally formed, the outer peripheral surfaces of the first side plate 11, the second side plate 12 and the first arc-shaped end plate 13 are smooth surfaces, and a first opening 14 is formed between the other end of the first side plate 11 and the other end of the second side plate 12; the second core mold assembly 20 includes a third side plate 21 and a fourth side plate 22 arranged relatively at a distance, the third side plate 21 and one end of the fourth side plate 22 are fixedly connected by a second arc-shaped end plate 13 The arc-shaped end plates 23 are fixedly connected, the third side plate 21, the fourth side plate 22 and the second arc-shaped end plate 23 are integrally formed, the outer peripheral surfaces of the third side plate 21, the fourth side plate 22 and the second arc-shaped end are smooth surfaces, and a second opening 24 is formed between the other end of the third side plate 21 and the other end of the fourth side plate 22; one end of the first side plate 11 close to the first opening 14 and one end of the third side plate 21 close to the second opening 24 and one end of the second side plate 12 close to the first opening 14 and one end of the fourth side plate 22 close to the second opening 24 are provided with a sub-fastening structure 30 that can clamp the first side plate 11 and the third side plate 21 ends, and the second side plate 12 and the fourth side plate 22 ends together; the third side plate 21 and the fourth side plate 22 are also provided with a first holding rod 26 that can make the two close together and deform.

[0043] Reference Figure 1 and Figure 2 As shown, the snap-on structure 30 includes a groove 31 arranged on the outer side surface of the end of the third side plate 21 and the fourth side plate 22, and a protrusion 32 arranged on the inner side surface of the end of the first side plate 11 and the second side plate 12. The protrusion 32 can be embedded in the corresponding groove 31 to form a snap connection. The protrusion 32 is a hemispherical curved surface, which is convenient for guiding and sliding into the groove 31. The design of the groove 31 and the protrusion 32 of the snap-on structure 30 allows the first core mold assembly 10 and the second core mold assembly 20 to be tightly connected, ensuring the integrity and stability of the core mold components, and avoiding misalignment or falling off during the pouring process. In addition, this snap-on method facilitates the assembly and disassembly of the core mold components, improves the reuse rate of the core mold components, and reduces the production cost of the precast concrete formwork.

[0044] Reference Figure 1 and Figure 2As shown, a support rib 17 is further provided between the first side plate 11 and the second side plate 12. The support rib 17 enhances the stability between the first side plate 11 and the second side plate 12, improves the overall rigidity of the core mold component, and avoids deformation of the first side plate 11 and the second side plate 12 due to external force during the pouring process, thereby ensuring the precise forming of the precast concrete form shell. A follower rod 19 is provided on the support rib 17; a second holding rod 16 is provided on both the first side plate 11 and the second side plate 12. The setting of the follower rod 19 and the second holding rod 16 enables the core mold component to be deformed more conveniently when being removed, thereby smoothly realizing the separation of the core mold component from the precast concrete form shell, improving demoulding efficiency, and reducing operation difficulty.

[0045] Reference Figure 2 and Figure 3 As shown, the first side plate 11 and the second side plate 12 have second slots 15 formed concave toward the opposite side, the second holding rod 16 is inserted into the corresponding second slots 15, and the slot width of the second slot 15 is smaller than the diameter of the second holding rod 16; the upper side of the support rib 17 is provided with a third slot 18, the slave rod 19 is inserted into the corresponding third slot 18, and the slot width of the third slot 18 is smaller than the diameter of the slave rod 19. The third side plate 21 and the fourth side plate 22 have first slots 25 formed concave toward the opposite side, the first holding rod 26 is inserted into the corresponding first slot 25, and the slot width of the first slot 25 is smaller than the diameter of the first holding rod 26. In this way, the second holding rod 16 can be firmly inserted into the corresponding second slot 15, the slave rod 19 can be firmly inserted into the corresponding third slot 18, and the first holding rod 26 is firmly fixed on the third side plate 21 and the fourth side plate 22, so as to prevent the first holding rod 26, the second holding rod 16 and the slave rod 19 from loosening and falling off due to vibration or other external factors during the use of the core mold component, thereby ensuring the stability and reliability of the core mold component. In addition, the slot width design of the first slot 25, the second slot 15 and the third slot 18 further enhances the locking effect of the first holding rod 26, the second holding rod 16 and the slave rod 19, ensuring that the core mold component can still maintain good structural integrity when subjected to external forces, thereby improving the manufacturing quality and production efficiency of the precast concrete formwork.

[0046] Further, see Figure 2 and Figure 3As shown, in the present application, there is a spacing between the support rib 17 and the protrusions 32 on the first side plate 11 and the second side plate 12, and the spacing is 15 to 50 mm. For example, it can be 10 mm; this allows the support rib 17 to be properly deformed when subjected to external force, thereby ensuring that the sub-fastener structure 30 is smoothly detached during the demoulding process of the core mold component, avoiding insufficient deformation of the support rib 17 due to too small a spacing, which affects the demoulding effect, and also preventing the support rib 17 from being insufficiently supported due to too large a spacing, which affects the overall stability of the core mold component. The first holding rod 26, the second holding rod 16, and the follower rod 19 are all rigid rods, which can be made of metals such as stainless steel, and each rod and the corresponding mounting groove can be installed by screwing in or pushing in. The sides of the first holding rod 26, the second holding rod 16 and the slave rod 19 all have planes, and the maximum radial dimension h of the first holding rod 26, the second holding rod 16 and the slave rod 19 along the radial direction perpendicular to the plane is smaller than the width b of the plane; after the first holding rod 26, the second holding rod 16 and the slave rod 19 are installed in place, the plane of the second holding rod 16 is flush with the corresponding outer side surfaces of the first side plate 11 and the second side plate 12, the plane of the first holding rod 26 is flush with the corresponding outer side surfaces of the third side plate 21 and the fourth side plate 22, and the plane of the slave rod 19 is flush with the other side surface of the support rib 17.

[0047] In the present application, the third side plate 21 and the fourth side plate 22 may be made of elastic materials, including but not limited to organic non-metallic materials.

[0048] The implementation principle is as follows: In the present application, the core mold component is divided into a first core mold component 10 and a second core mold component 20 according to structural differences, and a first force holding rod 26 capable of applying pressure is disposed on the second core mold component 20. When in use, pressure is applied to the first force holding rod 26 on the second core mold component 20 to deform the third side plate 21 and the fourth side plate 22 close together, so that the first core mold component 10 and the second core mold component 20 can be embedded and combined with each other, and a snap-on connection is formed through the sub-screw structure 30, and the first core mold component 10 and the second core mold component 20 form a core mold component.

[0049] Reference Figure 4 As shown, the core mold component in the present application can be operated in cooperation with a rotating shaft mechanism 60, which includes a rotating shaft portion 61 and two rotating mold portions 62 arranged at intervals, the two rotating mold portions 62 are symmetrically arranged on both sides of the rotating shaft portion 61, the two rotating mold portions 62 are rotatably connected to the rotating shaft portion 61 through a connecting rod 63, and the angle between the two connecting rods 63 is less than 180 degrees; the rotating shaft portion 61 is matched with the structure of the slave rod 19, the rotating shaft portion 61 can be sleeved on the slave rod 19, the rotating mold portion 62 is matched with the structure of the second holding rod 16, the two rotating mold portions 62 can be respectively sleeved on the two second holding rods 16, and the rotating mold portion 62 and the rotating shaft portion 61 themselves can both rotate.

[0050] Combination Figure 1 and Figure 2 As shown, the rotating shaft mechanism 60 is installed to the corresponding second holding rod 16 and the pulling rod 19 in the first core mold assembly 10, and pressure is applied to the first holding rod 26 on the second core mold assembly 20 and the rotating shaft mechanism 60 on the first core mold assembly 10. A pair of grooves 31 in the sub-fastener structure 30 are displaced inward, and a pair of protrusions 32 in the sub-fastener structure 30 are displaced outward, so that the sub-fastener structure 30 can be detached, and then it can be detached from the mold shell and pulled out to form a vertical hole.

[0051] The core mold component in the present application can realize convenient assembly and disassembly of the first core mold assembly 10 and the second core mold assembly 20, can effectively realize the hole-making process of the precast concrete mold, improve the production and demolding efficiency of the precast concrete mold, improve the production efficiency of the precast concrete mold, reduce the production cost of the precast concrete mold, and ensure the molding quality and structural stability of the precast concrete mold.

[0052] Example 2 Reference Figure 5 , Figure 6 and Figure 7 As shown, this embodiment is substantially the same as the embodiment 1, except that, in this embodiment, the outer circumferential surfaces of the first arc-shaped end plate 13 and the second arc-shaped end plate 23 are provided with a convex point portion 40; the slope of one side of the convex point portion 40 is greater than the slope of the other side. The convex point portion 40 is provided so that the manufactured precast concrete formwork can better contact with the cast-in-place concrete during the concrete pouring process, thereby enhancing the stability and reliability of the entire composite shear wall. The slope of one side of the convex point portion 40 is greater than the slope of the other side, so that the core mold component is easier to be pulled out from the concrete when it is removed, reducing the resistance during the removal process and improving the work efficiency.

[0053] Example 3 Reference Figure 8 and Fig. 9As shown, in this embodiment, a precast concrete formwork for a composite shear wall is disclosed, which is made by using the core mold component in the above-mentioned embodiment 1 or embodiment 2. The precast concrete formwork in this embodiment includes a first concrete slab 50 and a second concrete slab 51 arranged in parallel and spaced apart, and a plurality of longitudinal ribs 52 are arranged between the first concrete slab 50 and the second concrete slab 51; two adjacent longitudinal ribs 52 and the first concrete slab 50 and the second concrete slab 51 are surrounded to form a through vertical hole 53, and the through vertical hole 53 is formed by the core mold component, and the outermost The longitudinal ribs 52 are combined with the first concrete slab 50 and the second concrete slab 51 to form a through half hole 54, and the through half hole 54 is formed by the first core mold component 10 or the second core mold component 20 in the core mold component; the first concrete slab 50 and the second concrete slab 51 are provided with a wire mesh 55, the wire mesh 55 is connected by a combination of horizontal and longitudinal steel bars, and a coating or plating is provided on the surface, and a tensioning bar 56 is provided in the longitudinal ribs 52, and a hanger 57 is provided on the top of the first concrete slab 50, the second concrete slab 51 or the longitudinal ribs 52, and a limiting component 58 is provided on the bottom.

[0054] The thickness of the precast concrete formwork in the present application is between 20 and 40 mm, the size of the through vertical holes 53 and the core mold components can be adjusted with the thickness of the formwork, and the structural shape is not limited to a rounded rectangle; the forming process of the wire mesh 55 includes but is not limited to welding and binding connection, and the diameter of the wire mesh 55 is between 2 and 8 mm; the arrangement of the tie rods 56 includes but is not limited to an X-shaped or plum blossom-shaped arrangement, and the diameter of the tie rods 56 is between 4 and 10 mm.

[0055] The precast concrete formwork in the present application is provided with a plurality of through vertical holes 53, the thickness of the formwork is small and a steel mesh 55 is provided inside to improve the rigidity of the formwork. The precast concrete formwork in the present application can effectively improve the quality of the precast concrete formwork and reduce its cost.

[0056] Example 4 The present invention discloses a method for manufacturing a precast concrete formwork for a composite shear wall, wherein the core formwork component in the above-mentioned embodiment 1 or embodiment 2 is used to manufacture the precast concrete formwork in the above-mentioned embodiment 3, and the manufacturing method comprises the following steps: S1: Setting up the table formwork: Setting up two parallel and spaced formworks, and tying the wire mesh 55 and the tie bars 56 between the two formworks; S2: Setting the core mold component: a plurality of groups of core mold components are set corresponding to the set middle cavity position of the precast concrete formwork. When setting the core mold component, pressure is applied to the holding rod on the second core mold assembly 20 to make the third side plate 21 and the fourth side plate 22 of the second core mold assembly 20 move closer and deform, so that the male and female buckle structures 30 on the first core mold assembly 10 and the second core mold assembly 20 form a snap connection, and the first core mold assembly 10 and the second core mold assembly 20 form a core mold component; S3: Pouring: pouring concrete and vibrating; S4: demolding: after the concrete strength is improved, the core mold component and the table mold are removed; when the core mold component is removed, the rotating shaft mechanism is installed on the follower rod 19 and the second holding rod 16 in the first core mold assembly 10, the rotating shaft component drives the follower rod 19 in the first core mold assembly 10 to move, the supporting rib 17 in the first core mold assembly 10 is deformed, and the snap-fit ​​structure 30 is displaced outward; at the same time, pressure is applied to the first holding rod 26 in the second core mold assembly 20, the snap-fit ​​structure 30 is deformed, and the second core mold assembly 20 can be separated from the first core mold assembly 10 and pulled out along the length direction of the mold shell to realize the separation of the core mold component and the concrete mold shell to form a hole.

[0057] In this embodiment, an efficient hole-forming process for the precast concrete formwork of the composite shear wall is realized, the production efficiency of the precast concrete formwork is improved, the production cost is reduced, and the quality and reliability of the formwork are ensured.

[0058] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A core mold component of a composite shear wall formwork, characterized in that: It comprises a first core mold assembly (10) and a second core mold assembly (20); The first core mold assembly (10) comprises a first side plate (11) and a second side plate (12) which are arranged relatively spaced apart, the first side plate (11) and one end of the second side plate (12) are fixedly connected via a first arc-shaped end plate (13), and a first opening (14) is formed between the other end of the first side plate (11) and the other end of the second side plate (12); The second core mold assembly (20) comprises a third side plate (21) and a fourth side plate (22) which are arranged relatively spaced apart, the third side plate (21) and one end of the fourth side plate (22) are fixedly connected via a second arc-shaped end plate (23), and a second opening (24) is formed between the other end of the third side plate (21) and the other end of the fourth side plate (22); An end of the first side panel (11) close to the first opening (14) and an end of the third side panel (21) close to the second opening (24), as well as an end of the second side panel (12) close to the first opening (14) and an end of the fourth side panel (22) close to the second opening (24) are provided with a snap-fit ​​structure (30) capable of snapping the first side panel (11) and the end of the third side panel (21), and the second side panel (12) and the end of the fourth side panel (22) together; The third side plate (21) and the fourth side plate (22) are also provided with a first force holding rod (26) capable of bringing the two closer together and deforming.

2. The core mold component of the composite shear wall formwork according to claim 1, characterized in that: The male and female buckle structure (30) comprises a groove (31) arranged on the outer side surface of the end of the third side plate (21) and the fourth side plate (22), and a protrusion (32) arranged on the inner side surface of the end of the first side plate (11) and the second side plate (12), and the protrusion (32) can be embedded in the corresponding groove (31) to form a snap connection.

3. The core mold component of the composite shear wall formwork according to claim 1 or 2, characterized in that: The third side plate (21) and the fourth side plate (22) are provided with first clamping grooves (25) which are recessed toward opposite sides, and the first holding rod (26) is inserted into the corresponding first clamping grooves (25), and the slot width of the first clamping grooves (25) is smaller than the diameter of the first holding rod (26).

4. The core mold component of the composite shear wall formwork according to claim 2, characterized in that: A support rib (17) is further provided between the first side plate (11) and the second side plate (12), and a follower rod (19) is provided on the support rib (17); and a second force holding rod (16) is provided on both the first side plate (11) and the second side plate (12).

5. The core mold component of the composite shear wall formwork according to claim 4, characterized in that: The first side plate (11) and the second side plate (12) are provided with second slots (15) which are recessed toward opposite sides, the second holding rod (16) is inserted into the corresponding second slots (15), and the slot width of the second slot (15) is smaller than the diameter of the second holding rod (16); the upper side surface of the support rib (17) is provided with a third slot (18), the slave rod (19) is inserted into the corresponding third slot (18), and the slot width of the third slot (18) is smaller than the diameter of the slave rod (19).

6. The core mold component of the composite shear wall formwork according to claim 4, characterized in that: There is a spacing between the support rib (17) and the protrusions (32) on the first side plate (11) and the second side plate (12), and the spacing is 15 to 50 mm.

7. The core mold component of the composite shear wall formwork according to claim 4, characterized in that: The sides of the first force holding rod (26), the second force holding rod (16) and the follower rod (19) all have planes, and the maximum radial dimension h of the first force holding rod (26), the second force holding rod (16) and the follower rod (19) perpendicular to the plane in the radial direction is smaller than the width b of the plane.

8. The core mold component of the composite shear wall formwork according to claim 1, characterized in that: The first side plate (11), the second side plate (12) and the first arc-shaped end plate (13) are integrally formed, the third side plate (21), the fourth side plate (22) and the second arc-shaped end plate (23) are integrally formed, and the first arc-shaped end plate (13) and the second arc-shaped end plate (23) have convex portions (40) on their outer circumferential surfaces; the slope of one side of the convex portion (40) is greater than the slope of the other side.

9. A precast concrete formwork for a composite shear wall, characterized in that: The precast concrete formwork is made of the core mold component described in any one of claims 1 to 8, the precast concrete formwork comprises a first concrete slab (50) and a second concrete slab (51) arranged in parallel and spaced apart, a plurality of longitudinal ribs (52) are arranged between the first concrete slab (50) and the second concrete slab (51); two adjacent longitudinal ribs (52) and the first concrete slab (50) and the second concrete slab (51) are combined to form a through vertical hole (53), the through vertical hole (53) is formed by the core mold component, the outermost longitudinal rib (52) and the first concrete slab (50) and the second concrete slab (51) are combined to form a through half hole (54), the through half hole (54) is formed by the first core mold component (10) or the second core mold component (20) in the core mold component; A wire mesh (55) is provided inside the first concrete slab (50) and the second concrete slab (51), a tie rod (56) is provided inside the longitudinal rib (52), and a hanger (57) is provided on the top of the first concrete slab (50), the second concrete slab (51) or the longitudinal rib (52).

10. A method for manufacturing a precast concrete formwork for a composite shear wall, characterized in that: The precast concrete formwork shell of claim 9 is manufactured by using the core formwork component described in any one of claims 1 to 8, and the manufacturing method comprises the following steps: S1: Setting up a table form: Setting up two parallel and spaced formworks, and tying a wire mesh (55) and a tie bar (56) between the two formworks; S2: Setting the core mold components: a plurality of groups of core mold components are set in correspondence with the set middle cavity positions of the precast concrete formwork. When setting the core mold components, pressure is applied to the holding rod on the second core mold assembly (20) so that the third side plate (21) and the fourth side plate (22) of the second core mold assembly (20) are deformed to move closer together, thereby forming a snap-fit ​​connection between the male and female buckle structures (30) on the first core mold assembly (10) and the second core mold assembly (20), and the first core mold assembly (10) and the second core mold assembly (20) form a core mold component; S3: Pouring: pouring concrete and vibrating; S4: demoulding: after the concrete strength is improved, the core mold component and the table mold are removed; when the core mold component is removed, the rotating shaft mechanism (60) is installed on the follower rod (19) and the second holding rod (16) in the first core mold component (10), the rotating shaft component drives the follower rod (19) in the first core mold component (10) to move, the supporting rib (17) in the first core mold component (10) is deformed, and the snap-on structure (30) is displaced outward; at the same time, pressure is applied to the first holding rod (26) in the second core mold component (20), the snap-on structure (30) is deformed, and the second core mold component (20) can be separated from the first core mold component (10) and pulled out along the length direction of the mold shell, so that the core mold component and the concrete mold shell are separated to form a hole.

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