Prefabricated wall core mold, prefabricated wall and use method thereof

Abstract

The present invention discloses a prefabricated wall core mold, comprising a top plate and side plates located at both sides below the top plate, the prefabricated wall core mold also comprises a bottom frame located below the top plate, the side plates are connected to the bottom frame via a rotating shaft; the bottom frame is connected with an intermediate shaft, a first component with an opening is fixedly connected to the inner wall of the top plate, the intermediate shaft passes through the opening; the bottom of the first component extends out of the bottom plate to both sides; a second component is horizontally passed through the intermediate shaft; the two ends of the second component extend from both sides of the first component respectively, and as the intermediate shaft rotates clockwise or counterclockwise, the two ends of the second component can respectively hit the bottom plates at both sides of the bottom of the first component. The present invention also discloses a wall made of the above-mentioned mold and a method for using the mold.

Description

Technical Field

[0001] The invention relates to the technical field of assembled walls, in particular to a prefabricated wall mould for producing prefabricated walls. Background Art

[0002] Precast walls are prefabricated in factories using molds, with cast-in-place areas and crisscrossed steel bars inside. Precast wall molds usually include a mold frame and a core mold that is mostly located inside the mold frame. The core mold is used to construct various shapes of cavities inside the precast wall according to requirements. These cavities are cast-in-place areas when the precast wall is assembled on site.

[0003] For example, CN208247132U is a core mold invented by the inventor, which is used as an inner module of the mold frame to construct a cast-in-place cavity inside the prefabricated wall. The core mold includes side molds and a top plate. Under the control of a set of complex actuators, the side molds can support the top plate to form a cast-in-place cavity structure. When the mold is removed, the side molds fall and separate from the top plate, so that the entire core mold can be pulled out of the prefabricated wall after casting. However, the disadvantage of this type of mold is that the internal mechanical structure includes multiple transmission shafts and connecting rod mechanisms, which makes the structure too complicated and increases the manufacturing cost.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The object of the present invention is to provide a prefabricated wall core mold, which has a simplified structure and saves costs compared to the multi-drive shaft and multi-link mechanism molds in the prior art, and is particularly suitable for producing prefabricated walls with through-length cavities.

[0006] To achieve the above-mentioned objectives, in the first aspect, an embodiment of the present invention provides a prefabricated wall core mold mold, comprising a top plate and side plates located on both sides below the top plate, the prefabricated wall core mold mold also comprising a base frame located below the top plate, the side plates being connected to the base frame via a rotating shaft; an intermediate shaft is connected to the base frame, a first component with an opening is fixedly connected to the inner wall of the top plate, and the intermediate shaft passes through the opening; a bottom plate is extended to both sides from the bottom of the first component; a second component is horizontally passed through the intermediate shaft; two ends of the second component respectively extend from both sides of the first component, and as the intermediate shaft rotates clockwise or counterclockwise, the two ends of the second component can respectively hit the bottom plates on both sides of the bottom of the first component.

[0007] Furthermore, the intermediate shaft is connected to the base frame via a support member.

[0008] Furthermore, the first component includes a top connecting plate, two vertical plates arranged at intervals and the bottom plate, the top connecting plate is fixedly connected to the inner wall of the top plate, and the vertical plates are connected between the top connecting plate and the bottom plate, thereby forming the opening.

[0009] Furthermore, the second component is rod-shaped, and a through groove is provided on the vertical plate for the second component to move up and down. When the intermediate shaft rotates clockwise, one end of the second component moves downward and hits the bottom plate outside the vertical plate on one side. When the intermediate shaft rotates counterclockwise, the other end of the second component moves downward and hits the bottom plate outside the vertical plate on the other side.

[0010] Furthermore, one end of the base frame is provided with a connection structure for connecting to a mold removal device.

[0011] Furthermore, a steel bar groove is provided at the lower portion of the side plate for the horizontal steel bars of the prefabricated wall to pass through.

[0012] Furthermore, the prefabricated wall core mold also includes a rubber strip arranged on the outside of the top plate and / or the bottom frame, and the rubber strip is configured with slots for accommodating vertical steel bars of the prefabricated wall. The rubber strip is integral with or separate from the top plate and / or the bottom frame.

[0013] Furthermore, an iron groove is provided on the outer side of the top plate and / or the bottom frame, and the iron groove is used to accommodate the vertical steel bars of the prefabricated wall, and the iron groove is separate from the top plate and / or the bottom frame.

[0014] In a second aspect, the present invention also provides a prefabricated wall made from the above-mentioned prefabricated wall core mold.

[0015] In a third aspect, the present invention also provides a method for using the above-mentioned prefabricated wall core mold, comprising the following steps:

[0016] placing the precast wall core mold in the mold frame;

[0017] Rotate the side panels so that the top ends of the side panels support the top panels, thus completing the formwork operation;

[0018] After the pouring is completed, when the formwork is removed, the side plates are separated from the top plate, and the intermediate shaft rotates back and forth clockwise and counterclockwise to control the two ends of the second component to hit the bottom plate back and forth, so that the top plate is separated from the concrete of the prefabricated wall.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First, the transmission structure is relatively simple, with only the rotating shaft of the side panel and the intermediate shaft. The demoulding action of the mold and the prefabricated wall is mainly completed by the intermediate shaft, which is easy to control.

[0021] Second, for prefabricated walls with full-length cavities, the bonding area between the prefabricated wall and the core mold is large and not easy to disassemble. If brute force is used to disassemble it all at once, it may cause damage to the inside of the prefabricated wall. By using the second component to rotate back and forth to hit the bottom plate of the first component, the bonding between the top plate and the concrete can be continuously weakened by point vibration, thereby protecting the prefabricated wall with a full-length cavity from being damaged by the force of demolding, and the core mold can also be smoothly removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the main structure of a prefabricated wall core mold for making an interior wall provided by one embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure;

[0024] Figure 3 for Figure 1 The top plate of the core mold is a perspective structural schematic diagram in a transparent state;

[0025] Figure 4 for Figure 3 A schematic diagram of a partially enlarged structure around the first component;

[0026] Figure 5 A schematic diagram of the bottom structure of a prefabricated wall core mold for making an exterior wall provided by another embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the bottom structure of a prefabricated wall core mold for making an interior wall provided by another embodiment of the present invention;

[0028] In the figure: 1-top plate; 2-side plate; 21-rebar groove; 3-base frame; 31-connecting structure; 4-rotating shaft; 5-intermediate shaft; 6-support; 7-first component; 71-bottom plate; 72-top connecting plate; 73-vertical plate; 8-second component; 81-through groove; 9-rubber strip; 91-slot hole; 10-iron groove. DETAILED DESCRIPTION

[0029] The principle and spirit of the present invention will be described below with reference to several exemplary embodiments shown in the accompanying drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way.

[0030] Please refer to Figure 1-4, embodiments of the present invention provide a precast wall core mold, which includes a top plate 1 and side plates 2 on both sides below the top plate 1. The top plate 1 and the side plates 2 enclose the main body of the entire core mold, which is used to block the concrete poured into the mold during pouring, so that after the concrete solidifies, a cavity corresponding to the shape of the core mold is formed in the precast wall. In this embodiment, the side plate 2 is generally in a semi-circular tubular shape.

[0031] The core mold needs to be removed from the wall after the production of the precast wall is completed. Therefore, there is a set of mechanisms on the inner side of the core mold to help the top plate 1 and the side plates 2 separate from the concrete. After separation, the entire core mold can be withdrawn from the precast wall with the help of mold removal equipment.

[0032] In this embodiment, this set of mechanisms includes a chassis 3 below the top plate 1, and the side plates 2 are connected to the chassis 3 through a rotating shaft 4. Under the action of external force and tools, the side plates 2 can rotate back and forth along with the rotating shaft 4. During the formwork support process, the side plates 2 rotate to a state where they can support the top plate 1. During the formwork removal process, the side plates 2 rotate to a state where they are separated from the top plate 1. In this embodiment, the chassis 3 includes two round tubes, which are respectively used to connect the rotating shafts 4 on both sides.

[0033] An intermediate shaft 5 is connected to the chassis 3, and specifically, a support member can be used to connect to the intermediate shaft 5. The support member in this embodiment is a support 6 arranged between the round tubes of the chassis 3. Because the length of the mold is relatively long, a plurality of supports 6 are arranged at intervals in the length direction of the chassis 3. The intermediate shaft 5 passes through each support 6 and is supported on the chassis 3.

[0034] A first component 7 with an opening is fixedly connected to the inner wall of the top plate 1, and the intermediate shaft 5 passes through the opening. The bottom of the first component 7 extends outwards to both sides to form a bottom plate 71. A second component 8 is transversely penetrated on the intermediate shaft 5, and both ends of the second component 8 extend out from both sides of the first component 7 respectively. As the intermediate shaft 5 rotates clockwise and counterclockwise, both ends of the second component 8 can respectively strike the bottom plates 71 on both sides of the bottom of the first component 7. By repeatedly striking the first component 7 with the second component 8, the bonding force between the top plate 1 and the concrete can be gradually weakened, and the top plate 1 can be smoothly separated from the concrete without causing damage.

[0035] There can be many structures for the first component 7 and the second component 8. In this embodiment, the first component 7 includes a top connecting plate 72, two vertically arranged plates 73 arranged at intervals, and a bottom plate 71. The top connecting plate 72 is fixedly connected to the inner wall of the top plate 1, and the vertical plates 73 are connected between the top connecting plate 72 and the bottom plate 71 to form the opening. Both sides of the top connecting plate 72 extend out a certain distance from both sides of the top of the vertical plates 73, and both sides of the bottom plate 71 also extend out a certain distance from both sides of the bottom of the vertical plates 73. The entire first component 7 looks similar to the structure of the Chinese character "ya".

[0036] The second component 8 is rod-shaped, and a through slot 81 is provided on the vertical plate 73 for the second component 8 to move up and down. In this embodiment, the through slot 81 is strip-shaped and extends from the upper part to the lower part of the vertical plate 73. When the intermediate shaft 5 rotates clockwise, one end of the second component 8 moves downward and hits the bottom plate 71 outside the vertical plate 73 on one side, and the other end of the second component 8 tilts up. When the intermediate shaft 5 rotates counterclockwise, the other end of the second component 8 moves downward and hits the bottom plate 71 outside the vertical plate 73 on the other side, and the opposite end of the second component 8 tilts up. When the intermediate shaft 5 rotates repeatedly clockwise and counterclockwise, the second component 8 repeatedly hits the bottom plate 71 like a seesaw.

[0037] One end of the base frame 3 is provided with a connection structure 31 for connecting to the mold removal device. In this embodiment, the connection structure 31 is a V-shaped component connected to the circular tube of the base frame 3.

[0038] like Figure 5 As shown, when the mold is used as the core mold of the exterior wall, a steel bar groove 21 is provided at the lower part of the side plate 2 for the horizontal steel bars of the prefabricated wall to pass through. For the exterior wall, the horizontal steel bars need to be exposed on the side with the insulation layer, so accordingly, a plurality of steel bar grooves 21 arranged at intervals need to be provided on the side plate 2 for the horizontal steel bars to pass through.

[0039] In addition to horizontal steel bars, vertical steel bars are also arranged in the prefabricated wall. Therefore, in this embodiment, the prefabricated wall core mold further includes a rubber strip 9 arranged on the outside of the top plate 1 and / or the bottom frame 3 to accommodate the vertical steel bars. In this embodiment, the rubber strip 9 is arranged above the top plate 1. A slot 91 for accommodating the vertical steel bars of the prefabricated wall is configured in the rubber strip 9. The rubber strip 9 is integral or separate with the top plate 1, preferably integral, so that it can be disassembled and assembled at one time.

[0040] The top plate 1 and / or the bottom frame 3 are also provided with an iron groove 10 on the outside, and the iron groove 10 is used to accommodate the vertical steel bars of the prefabricated wall. The iron groove 10 is separate from the top plate 1 and / or the bottom frame 3. In this embodiment, Figure 6 As shown, the iron groove 10 is located below the base frame 3, and the iron groove 10 is separate from the base frame 3. At this time, the round tubes on both sides of the base frame 3 are equivalent to slideways. When the mold is removed, the iron groove 10 and the main part of the core mold are removed separately.

[0041] The embodiment of the present invention also provides a prefabricated wall made of the above-mentioned prefabricated wall core mold. The specific production process is: placing the core mold in a mold frame, pouring concrete into the mold frame, and after the concrete solidifies, removing the core mold to obtain the prefabricated wall.

[0042] The method for using the above-mentioned prefabricated wall core mold comprises the following steps:

[0043] S1: placing the prefabricated wall core mold in the mold frame;

[0044] S2: Rotate the side plate 2 (with the help of an external tool) so that the top of the side plate 2 supports the top plate 1, completing the formwork operation;

[0045] After the formwork is completed, pouring can begin, and after the concrete solidifies, the mold can be removed.

[0046] S3: When removing the formwork, the side panels 2 on both sides are controlled to rotate toward each other and separate from the top panel 1. The intermediate shaft 5 can be controlled to rotate clockwise and counterclockwise with the help of an external tool, thereby controlling the two ends of the second component 8 to reciprocate and hit the bottom panel 71, so that the top panel 1 is separated from the concrete of the prefabricated wall.

[0047] The invention concept is described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the core idea of ​​the invention. It should be pointed out that any obvious modification, equivalent substitution or other improvement made by a person of ordinary skill in the art without departing from the invention concept should be included in the protection scope of the present invention.

Claims

1. A prefabricated wall core mold, comprising a top plate and side plates located on both sides below the top plate, characterized in that: The prefabricated wall core mold mold also includes a bottom frame located below the top plate, and the side plate is connected to the bottom frame through a rotating shaft; the bottom frame is connected to an intermediate shaft, and a first component with an opening is fixedly connected to the inner wall of the top plate, and the intermediate shaft passes through the opening; the bottom of the first component extends to both sides of the bottom plate; a second component is horizontally passed through the intermediate shaft; two ends of the second component extend from both sides of the first component respectively, and as the intermediate shaft rotates clockwise or counterclockwise, the two ends of the second component can respectively hit the bottom plates on both sides of the bottom of the first component; The first component includes a top connecting plate, two vertical plates arranged at intervals and the bottom plate, the top connecting plate is fixedly connected to the inner wall of the top plate, and the vertical plates are connected between the top connecting plate and the bottom plate, so as to form the opening; The second component is in the shape of a rod, and a through slot is provided on the vertical plate for the second component to move up and down. When the intermediate shaft rotates clockwise, one end of the second component moves downward and hits the bottom plate outside the vertical plate on one side. When the intermediate shaft rotates counterclockwise, the other end of the second component moves downward and hits the bottom plate outside the vertical plate on the other side. The prefabricated wall core mold also includes a rubber strip arranged on the outside of the top plate and / or the bottom frame, and the rubber strip is configured with slots for accommodating vertical steel bars of the prefabricated wall. The rubber strip is integral with or separate from the top plate and / or the bottom frame.

2. The prefabricated wall core mold according to claim 1, characterized in that: The intermediate shaft is connected to the base frame via a support member.

3. The prefabricated wall core mold according to claim 1, characterized in that: One end of the base frame is provided with a connection structure for connecting with a mold removal device.

4. The prefabricated wall core mold according to claim 1, characterized in that: A steel bar groove for passing the horizontal steel bars of the prefabricated wall is provided at the lower part of the side plate.

5. The prefabricated wall core mold according to claim 1, characterized in that: The top plate and / or the bottom frame are also provided with iron grooves on the outside thereof, and the iron grooves are used to accommodate the vertical steel bars of the prefabricated wall, and the iron grooves are separate from the top plate and / or the bottom frame.

6. A prefabricated wall made from the prefabricated wall core mold according to claim 1.

7. The method for using the prefabricated wall core mold according to claim 1, characterized in that: The steps include: placing the precast wall core mold in the mold frame; Rotate the side panels so that the top ends of the side panels support the top panels, thus completing the formwork operation; After the pouring is completed, when the formwork is removed, the side plates are separated from the top plate, and the intermediate shaft rotates back and forth clockwise and counterclockwise to control the two ends of the second component to hit the bottom plate back and forth, so that the top plate is separated from the concrete of the prefabricated wall.

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