A self-calibration fiber grating sensor preform production mold and construction method

Abstract

The application discloses a self-calibration fiber grating sensor prefabricated component production mold and construction method, and belongs to the technical field of fabricated buildings. The application comprises a seat plate, a pouring cavity for prefabricated component forming, and a core mold for forming a hole slot through which an optical fiber passes during pouring of the prefabricated component. Perforation arrangement mechanisms for adjusting the hole slot at different positions during pouring of the prefabricated component are arranged on both sides of the pouring cavity. A core mold arrangement mechanism for forming the hole slot during pouring of the prefabricated component is arranged on one side of the pouring cavity. The application can arrange multiple sets of clamping plates on the inner walls of both sides of the pouring cavity through the arrangement of the perforation arrangement mechanisms on both sides of the pouring cavity, thereby adjusting the pouring forming hole positions in the prefabricated component at different positions. The core mold arrangement mechanism can be matched with the arrangement of the multiple sets of clamping plates in the perforation arrangement mechanism to conveniently and adaptively arrange and assemble multiple sets of core molds on the connecting plate, thereby processing and forming the hole positions at different positions.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a production mold and construction method for a self-calibrating fiber optic grating sensor prefabricated component. Background Technology

[0002] Prefabricated construction refers to a construction method that uses prefabricated building components, which are then transported to the construction site for assembly and connection. Compared to traditional cast-in-place reinforced concrete structures, prefabricated structures have poorer overall stability and seismic performance, with the connection performance between components being a particularly weak and critical issue. Therefore, in prefabricated construction, embedded fiber optic strain sensors are often incorporated into the prefabricated components (usually prefabricated slabs), forming prefabricated intelligent components. These sensors monitor the steel reinforcement and concrete condition of the structure, accurately and effectively assessing the structural safety performance. Prefabricated components are generally cast using concrete molds, with slots provided for the fiber optic cables of the fiber optic sensors to pass through.

[0003] Existing precast component production molds generally consist of a casting cavity for housing a reinforcing steel cage, with pre-drilled slots on both sides of the casting cavity for the core mold to pass through. These slots, in conjunction with the core mold, form the slots within the cast precast component for the fiber optic portion of a fiber optic grating sensor to pass through. However, the positions of these slots on both sides of the casting cavity are often fixed, resulting in poor versatility and limiting the flexibility of the slot dimensions. When different slot positions are required in precast components, new molds must be made, leading to low mold reuse rates. Summary of the Invention

[0004] The purpose of this invention is to provide a production mold and construction method for a self-calibrating fiber optic grating sensor prefabricated component. By setting a perforation arrangement mechanism on both sides of the casting cavity, multiple sets of snap-fit ​​plates can be combined and arranged on the inner walls of both sides of the casting cavity, thereby adjusting the casting and forming holes in the prefabricated component at different positions. Furthermore, by setting a core mold arrangement mechanism, multiple sets of core molds can be conveniently adapted and assembled on the connecting plate in conjunction with the arrangement of multiple sets of snap-fit ​​plates in the perforation arrangement mechanism, thereby processing and forming holes at different positions, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mold for producing a self-calibrating fiber Bragg grating sensor prefabricated component includes a base plate, a casting cavity for forming the prefabricated component, and a core mold for forming optical fibers through slots during casting. The casting cavity has perforation arrangement mechanisms on both sides for adjusting the opening positions of the slots during casting. One side of the casting cavity has a core mold arrangement mechanism for forming slots during casting. The perforation arrangement mechanism includes first through-hole slots on both sides of the casting cavity, placement slots equidistantly opened on both sides of the inner wall of the casting cavity, and connecting plates. Multiple sets of locking plates are bolted to the bottom of the connecting plates, and these locking plates engage with multiple sets of placement slots. The multiple sets of locking plates have second through-hole slots for the core mold to pass through. The core mold arrangement mechanism includes a connecting plate, connecting blocks fixedly connected to both sides of the casting cavity, and a connecting seat threadedly connected to one end of the core mold. Multiple sets of connecting holes are opened inside the connecting plates, and connecting bolts threadedly connected to the connecting seats are installed through these connecting holes.

[0007] Preferably, each of the multiple sets of mounting slots has a limiting slot at its bottom, the connecting plate has multiple sets of connecting slots inside, the two ends of the snap-fit ​​plate are fixedly installed with limiting blocks, the limiting blocks engage with the limiting slots and connecting slots respectively, and one side of the connecting plate is threaded with multiple sets of locking bolts, one threaded end of each of the multiple sets of locking bolts penetrating the interior of the multiple sets of connecting slots.

[0008] Preferably, the connecting plate has connecting grooves at both ends, and multiple sets of threaded columns are symmetrically installed at the top corner of the casting cavity. The multiple sets of threaded columns are connected through the connecting grooves, and the top of the multiple sets of threaded columns are threaded with limit nuts.

[0009] Preferably, multiple sets of connecting rods are fixedly connected to both ends of the connecting plate, and the multiple sets of connecting rods are slidably connected to multiple sets of connecting blocks respectively.

[0010] Preferably, multiple sets of limiting holes and slots are equally spaced at the ends of the multiple sets of connecting rods away from the connecting plate, and limiting bolts are threadedly connected to the outer sides of the multiple sets of connecting blocks, with the threaded end of the limiting bolt engaging with the multiple sets of limiting holes and slots.

[0011] Preferably, the size of the second through-hole groove is smaller than the size of the multiple sets of first through-hole grooves.

[0012] Preferably, a discharge pusher plate located at the bottom of the casting cavity is snapped onto the upper surface of the seat plate, and external grooves are provided at the corners of the bottom surface of the seat plate and the bottom surface of the discharge pusher plate.

[0013] A construction method for a mold for producing a self-calibrating fiber Bragg grating sensor prefabricated component includes the following steps:

[0014] In use, the reinforcing cage can be placed through the casting cavity, and the precast components are formed in conjunction with cement pouring. During this process, through the perforation arrangement mechanism on both sides of the casting cavity, multiple sets of snap-fit ​​plates (the 320 snap-fit ​​plates are divided into two types: one type has no second through-hole slot on the surface, mainly serving to conceal the slot; the other type has second through-hole slots at the middle, upper, and lower ends, mainly for the core mold to pass through) can be combined and arranged on the inner walls of both sides of the casting cavity according to usage requirements. This allows for adjustment of the positions of the holes through which the fiber optic portion of the fiber optic grating sensor needs to pass during the precast component pouring (so that the second through-hole slots in the snap-fit ​​plates can be adjusted without...). The first through-hole slots on both sides of the casting cavity are aligned with the same position, and the first through-hole slots that are not needed can be blocked by the snap-fit ​​plate that does not have the second through-hole slot. In conjunction with the use of the core mold arrangement mechanism (that is, by connecting the connecting bolts and connecting holes, the connecting seat with the core mold is installed into the connecting hole on the connecting plate, which is aligned with the second through-hole slot, and the installed connecting seat is aligned with the second through-hole slot), multiple sets of core molds can be conveniently adapted, assembled and arranged on the connecting plate. Then, by the way the core mold enters the casting cavity through the snap-fit ​​plate, the different positions of the holes through which the optical fiber part of the fiber grating sensor needs to pass can be adjusted and processed on the prefabricated component.

[0015] By engaging the limiting blocks and connecting slots, multiple sets of snap-fit ​​plates and connecting plates can be arranged and combined. Tightening the locking bolts on one side of the connecting plate allows for the fixation of the multiple sets of snap-fit ​​plates on the connecting plate. Furthermore, by engaging the limiting blocks and limiting slots at the bottom of the multiple sets of snap-fit ​​plates, the arranged snap-fit ​​plates can be guided and snapped into the multiple placement slots, allowing the connecting slots at both ends of the connecting plate to connect with the threaded posts at the top corner of the casting cavity. During this process, tightening the limiting nuts at the top of the threaded posts fixes the connecting plate to both sides of the top of the casting cavity, completing the combined use of the perforation arrangement mechanism and the casting cavity. Note that, provided the second through-hole slot size is smaller than the first through-hole slot, the size of the second through-hole slot is not fixed and can be adjusted to accommodate different sized mandrels (simply by replacing the snap-fit ​​plates with different sized openings in the perforation arrangement mechanism).

[0016] The sliding connection between the connecting rod and the connecting block can guide the lateral sliding of the connecting plate and the core mold. Furthermore, by tightening the upper limit bolt on the connecting block, the lateral sliding of the connecting plate and the core mold can be limited by inserting one threaded end of the limit bolt into the limit hole groove.

[0017] The device can be supported and installed on an external bracket through the reserved external slot. By connecting the external slot at the bottom of the discharge push plate with the telescopic end of the electric push rod, the discharge push plate inside the casting cavity can be pushed out by the extension of the electric push rod, thereby assisting in the removal of the cast precast components.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention, through the perforation arrangement mechanism on both sides of the casting cavity, allows for the combination and arrangement of multiple sets of snap-fit ​​plates on the inner walls of both sides of the casting cavity according to usage requirements. This enables the adjustment of the positions of the holes through which the optical fiber portion of the fiber grating sensor needs to pass on the prefabricated component. Furthermore, through the core mold arrangement mechanism, it can cooperate with the arrangement of multiple sets of snap-fit ​​plates in the perforation arrangement mechanism to facilitate the fitting and assembly of multiple sets of core molds on the connecting plate. Consequently, according to usage requirements, the different positions of the holes through which the optical fiber portion of the fiber grating sensor needs to pass can be easily adjusted and processed, improving the applicability of the device in use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0022] Figure 3 This is a bottom-view structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection between the casting cavity and the perforation arrangement mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the perforation arrangement mechanism of the present invention.

[0025] In the diagram: 1. Seat plate; 101. Discharge push plate; 102. External groove; 2. Casting cavity; 3. Perforation arrangement mechanism; 301. First through hole groove; 302. Mounting slot; 303. Limiting slot; 304. Threaded column; 310. Connecting plate; 311. Connecting slot; 312. Connecting groove; 313. Locking bolt; 320. Clip plate; 321. Second through hole groove; 322. Limiting block; 4. Core mold arrangement mechanism; 401. Connecting block; 402. Limiting bolt; 410. Connecting plate; 411. Connecting rod; 412. Connecting hole; 413. Limiting hole groove; 420. Connecting bolt; 421. Connecting seat; 430. Core mold. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0027] Reference Figure 1-5This invention provides a production mold for a self-calibrating fiber Bragg grating sensor prefabricated component, including a base plate 1, a casting cavity 2 for forming the prefabricated component, and a core mold 430 for forming optical fibers through slots during casting. The casting cavity 2 has perforation arrangement mechanisms 3 on both sides for adjusting the opening positions of the slots during casting. One side of the casting cavity 2 has a core mold arrangement mechanism 4 for forming slots during casting. The perforation arrangement mechanism 3 includes first through-hole slots 301 on both sides of the casting cavity 2, mounting slots 302 equidistantly opened on both sides of the inner wall of the casting cavity 2, and a connecting plate 310. Multiple sets of mounting plates 320 are bolted to the bottom of the connecting plate 310, and the multiple sets of mounting plates 320 are connected to the multiple sets of mounting slots 302. The multiple sets of locking plates 320 have second through-hole slots 321 for the core mold 430 to pass through. The core mold arrangement mechanism 4 includes a connecting plate 410, connecting blocks 401 fixedly connected to both sides of the casting cavity 2, and a connecting seat 421 threadedly connected to one end of the core mold 430. The connecting plate 410 has multiple sets of connecting holes 412, and connecting bolts 420 threadedly connected to the connecting seat 421 are installed through the multiple sets of connecting holes 412. The multiple sets of connecting holes 412 are aligned with the multiple sets of first through-hole slots 301. When this device is used, the steel cage can be placed through the casting cavity 2, and the precast components can be formed in conjunction with cement pouring. During this process, the through-hole arrangement mechanism 3 on both sides of the casting cavity 2 can... According to usage requirements, multiple sets of snap-fit ​​plates 320 (two types of snap-fit ​​plates 320 are divided into two categories: one type has no second through-hole slot 321 on its surface, mainly serving to shield and accommodate the snap-fit ​​slot 302; the other type has second through-hole slots 321 at the middle, upper, and lower ends, mainly for the core mold 430 to pass through) are combined and arranged on the inner walls on both sides of the casting cavity 2. This allows for adjustment of the positions of the holes through which the fiber optic part of the fiber optic grating sensor needs to pass during the casting of the precast component. (This enables the second through-hole slot 321 in the snap-fit ​​plate 320 to align with the first through-hole slots 301 on both sides of the casting cavity 2 at different positions, and allows the snap-fit ​​plate 320 without the second through-hole slot 321 to pass through.) 20 pairs of unused first through-hole slots 301 are blocked), and in conjunction with the use of the core mold arrangement mechanism 4 (that is, by connecting the connecting bolts 420 and the connecting holes 412, the connecting seat 421 with the core mold 430 is installed into the connecting hole 412 on the connecting plate 410, and the connecting hole 412 is aligned with the second through-hole slot 321, and the installed connecting seat 421 is aligned with the second through-hole slot 321), multiple sets of core molds 430 can be conveniently adapted, assembled and arranged on the connecting plate 410. Then, by the way the core mold 430 passes through the snap-fit ​​plate 320 and enters the casting cavity 2, the different positions of the holes through which the optical fiber part of the fiber optic grating sensor needs to pass can be adjusted and processed on the prefabricated component.

[0028] Reference Figure 1 , Figure 3 and Figure 4 Each of the multiple sets of mounting slots 302 has a limiting slot 303 at its bottom. The connecting plate 310 has multiple sets of connecting slots 311 inside. The two ends of the snap-fit ​​plate 320 are fixedly installed with limiting blocks 322. The limiting blocks 322 engage with the limiting slots 303 and the connecting slots 311 respectively. One side of the connecting plate 310 is threaded with multiple sets of locking bolts 313. One threaded end of each locking bolt 313 penetrates the interior of the multiple sets of connecting slots 311.

[0029] The connecting plate 310 has connecting grooves 312 at both ends. Multiple sets of threaded posts 304 are symmetrically installed at the top corner of the casting cavity 2. These threaded posts 304 are connected through the connecting grooves 312, and each set of threaded posts 304 has a limit nut threaded to its top. The second through-hole groove 321 is smaller than the size of the multiple sets of first through-hole grooves 301. In use, the multiple sets of snap-fit ​​plates 320 can be arranged and combined with the connecting plate 310 by engaging the limit block 322 with the connecting groove 311. Furthermore, by tightening the locking bolt 313 on one side of the connecting plate 310, the arrangement of the multiple sets of snap-fit ​​plates 320 on the connecting plate 310 can be fixed in place. The limit block 322 at the bottom of the multiple sets of snap-fit ​​plates 320 engages with the limit groove 303. The locking mechanism guides the assembled locking plates 320 into multiple sets of mounting slots 302, and connects the connecting slots 312 at both ends of the connecting plate 310 to the threaded post 304 at the top corner of the casting cavity 2. During this process, the connecting plate 310 can be fixed to both sides of the top of the casting cavity 2 by tightening the limiting nut at the top of the threaded post 304, thus completing the combined use of the perforation arrangement mechanism 3 and the casting cavity 2. The size of the second through hole slot 321 is not fixed, provided that the size of the second through hole slot 321 is smaller than that of the first through hole slot 301. It can be adjusted by using different sizes of core molds 430 (only the locking plates 320 with different sizes of openings in the perforation arrangement mechanism 3 need to be replaced).

[0030] Reference Figures 1 to 3 Multiple sets of connecting rods 411 are fixedly connected to both ends of the connecting plate 410, and the multiple sets of connecting rods 411 are slidably connected to multiple sets of connecting blocks 401 respectively.

[0031] Multiple sets of connecting rods 411 are provided with multiple sets of limiting holes and slots 413 at equal intervals at the ends away from the connecting plate 410, and multiple sets of connecting blocks 401 are threadedly connected to limiting bolts 402 on the outside, and the threaded end of the limiting bolt 402 engages with the multiple sets of limiting holes and slots 413. When this device is in use, the lateral sliding of the connecting plate 410 and the core mold 430 can be guided by the sliding connection between the connecting rods 411 and the connecting blocks 401, and the lateral sliding of the connecting plate 410 and the core mold 430 can be limited by the tightening of the limiting bolts 402 on the connecting blocks 401 and the insertion of the threaded end of the limiting bolt 402 into the limiting holes and slots 413.

[0032] Reference Figure 3 The upper surface of the seat plate 1 is fitted with a discharge push plate 101 located at the bottom of the casting cavity 2. External slots 102 are provided at the corner of the bottom surface of the seat plate 1 and at the bottom surface of the discharge push plate 101. When the device is in use, the device can be supported on the external bracket through the reserved external slots 102. Through the connection between the external slots 102 at the bottom surface of the discharge push plate 101 and the telescopic end of the electric push rod, the discharge push plate 101 inside the casting cavity 2 can be pushed out by the extension of the electric push rod, thereby assisting in the removal of the cast precast components.

[0033] Working principle: In use, first connect the device to the external support and electric push rod through the reserved external slot 102, and place the device in the desired position. During use, the reinforcing cage can be placed through the casting cavity 2 to facilitate cement pouring and precast component forming. During this process, the perforation arrangement mechanism 3 on both sides of the casting cavity 2 allows for the combination and arrangement of multiple sets of snap-fit ​​plates 320 on the inner walls of both sides of the casting cavity 2 according to usage requirements (for adjusting the arrangement of holes through which the fiber optic part of the fiber optic grating sensor needs to pass during precast component pouring). Furthermore, the use of the core mold arrangement mechanism 4 on the outer side of the casting cavity 2 (i.e., through the connecting bolts 4) allows for... The 20 is connected to the connecting hole 412. The connecting seat 421 with the core mold 430 is installed into the connecting hole 412 on the connecting plate 410, and the installed connecting seat 421 is aligned with the second through hole groove 321 through which the core mold 430 is to be passed. Multiple sets of core molds 430 can be conveniently adapted, assembled and arranged on the connecting plate 410. In this process, multiple sets of core molds 430 can be passed through the second through hole groove 321 and entered into the casting cavity 2 by pushing the connecting plate 410 laterally (and can enter the casting cavity 2 by passing the core mold 430 through the snap-fit ​​plate 320). The different positions of the holes through which the optical fiber part of the fiber optic grating sensor needs to pass are adjusted and processed on the prefabricated component.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mold for producing a self-calibrating fiber Bragg grating sensor prefabricated component, characterized in that: The system includes a base plate (1), a casting cavity (2) for precast component forming, and a core mold (430) for optical fiber to pass through slots during precast component casting. The casting cavity (2) has perforation arrangement mechanisms (3) on both sides for adjusting the opening of slots at different positions during precast component casting. The casting cavity (2) also has a core mold arrangement mechanism (4) on one side for slot formation during precast component casting. The perforation arrangement mechanism (3) includes a first through-hole slot (301) on both sides of the casting cavity (2), placement slots (302) equidistantly opened on both sides of the inner wall of the casting cavity (2), and a connecting plate (310). The bottom of the connecting plate (310) is bolted together. The system includes multiple sets of snap-fit ​​plates (320), which engage with multiple sets of mounting slots (302). The snap-fit ​​plates (320) have a second through hole slot (321) for the core mold (430) to pass through. The core mold arrangement mechanism (4) includes a connecting plate (410), a connecting block (401) fixedly connected to both sides of the casting cavity (2), and a connecting seat (421) threadedly connected to one end of the core mold (430). The connecting plate (410) has multiple sets of connecting holes (412), and connecting bolts (420) threadedly connected to the connecting seat (421) are installed through the multiple sets of connecting holes (412).

2. The self-calibrating fiber Bragg grating sensor prefabrication component production mold according to claim 1, characterized in that: Each of the multiple sets of mounting slots (302) has a limiting slot (303) at its bottom. The connecting plate (310) has multiple sets of connecting slots (311) inside. The two ends of the snap-fit ​​plate (320) are fixedly installed with limiting blocks (322). The limiting blocks (322) engage with the limiting slots (303) and connecting slots (311) respectively. One side of the connecting plate (310) is threaded with multiple sets of locking bolts (313). One end of the thread of the multiple sets of locking bolts (313) penetrates the interior of the multiple sets of connecting slots (311).

3. The self-calibrating fiber Bragg grating sensor prefabrication component production mold according to claim 2, characterized in that: The connecting plate (310) has connecting grooves (312) at both ends. Multiple sets of threaded columns (304) are symmetrically installed at the top corner of the casting cavity (2). The multiple sets of threaded columns (304) are connected through the connecting grooves (312), and the top of the multiple sets of threaded columns (304) are threaded with limit nuts.

4. The self-calibrating fiber Bragg grating sensor prefabrication component production mold according to claim 3, characterized in that: The connecting plate (410) has multiple sets of connecting rods (411) fixedly connected to both ends, and the multiple sets of connecting rods (411) are slidably connected to multiple sets of connecting blocks (401).

5. A production mold for a self-calibrating fiber Bragg grating sensor prefabricated component according to claim 4, characterized in that: Multiple sets of limiting holes (413) are equally spaced at the ends of the connecting rods (411) away from the connecting plate (410), and multiple sets of limiting bolts (402) are threadedly connected to the outer side of the connecting blocks (401), and the threaded end of the limiting bolts (402) engages with the multiple sets of limiting holes (413).

6. The self-calibrating fiber Bragg grating sensor prefabrication component production mold according to claim 5, characterized in that: The second through hole groove (321) is smaller than the size of the multiple sets of first through hole grooves (301).

7. A production mold for a self-calibrating fiber Bragg grating sensor prefabricated component according to claim 6, characterized in that: The upper surface of the seat plate (1) is fitted with a discharge push plate (101) located at the bottom of the casting cavity (2). External slots (102) are provided at the corner of the bottom surface of the seat plate (1) and at the bottom surface of the discharge push plate (101).

8. A construction method for a mold for producing prefabricated components of a self-calibrating fiber Bragg grating sensor, characterized in that: The production mold for the self-calibrating fiber Bragg grating sensor prefabrication component according to claim 7 includes the following steps: In use, the steel cage is placed in the casting cavity (2), and the precast component is formed by cement pouring. During this process, multiple sets of snap-fit ​​plates are arranged on the inner wall of both sides of the casting cavity (2) according to the usage requirements through the setting of the perforation arrangement mechanism (3) on both sides of the casting cavity (2). The snap-fit ​​plates (320) are divided into two types. One type is a snap-fit ​​plate (320) without a second through hole groove (321) on the surface, which mainly serves to shield the placement of the snap-fit ​​groove (302). The other type is a snap-fit ​​plate (320) with a second through hole groove (321) at the middle, upper and lower ends, which is mainly used for the core mold (430) to pass through. Then, in the casting of the precast component, the holes that the fiber optic part of the fiber optic grating sensor needs to pass through are adjusted at different positions, so that the second through hole groove (321) in the snap-fit ​​plate (320) is in different positions with the first through hole groove (301) on both sides of the casting cavity (2). The alignment is performed, and the first through hole slot (301) that is not needed can be blocked by the snap plate (320) without the second through hole slot (321). In conjunction with the use of the core mold arrangement mechanism (4), that is, by connecting the connecting bolt (420) and the connecting hole (412), the connecting seat (421) with the core mold (430) is installed into the connecting hole (412) on the connecting plate (410), and the connecting hole (412) is aligned with the second through hole slot (321). The installed connecting seat (421) is aligned with the second through hole slot (321). Multiple sets of core molds (430) are conveniently adapted, assembled and arranged on the connecting plate (410). Then, by the core mold (430) passing through the snap plate (320) and entering the casting cavity (2), the different positions of the optical fiber part in the fiber grating sensor that need to pass through are adjusted and processed on the prefabricated component. By engaging the limiting block (322) with the connecting slot (311), multiple sets of snap-fit ​​plates (320) are arranged and combined with the connecting plate (310). Furthermore, by tightening the locking bolt (313) on one side of the connecting plate (310), the arrangement of multiple sets of snap-fit ​​plates (320) on the connecting plate (310) is fixed in place. Additionally, by engaging the limiting block (322) at the bottom of the multiple sets of snap-fit ​​plates (320) with the limiting slot (303), the arranged snap-fit ​​plates (320) are guided and snapped into the multiple placement slots (302), thus securing the connecting plate (310)... The connecting grooves (312) at both ends of the casting cavity (2) are connected to the threaded column (304) at the top corner. During this process, the connecting plate (310) is fixed on both sides of the top of the casting cavity (2) by tightening the limiting nut at the top of the threaded column (304), thus completing the combined use of the perforation arrangement mechanism (3) and the casting cavity (2). Among them, under the premise that the size of the second through hole groove (321) is smaller than that of the first through hole groove (301), the size of the second through hole groove (321) is not fixed and is adjusted in conjunction with the core mold (430) of different sizes. The lateral sliding of the connecting plate (410) and the core mold (430) is guided by the sliding connection between the connecting rod (411) and the connecting block (401), and the lateral sliding of the connecting plate (410) and the core mold (430) is limited by the tightening of the upper limit bolt (402) of the connecting block (401) and the insertion of the threaded end of the limit bolt (402) into the limit hole groove (413). The device is supported on the external bracket by the reserved external slot (102), and the external slot (102) at the bottom of the discharge push plate (101) is connected to the extension end of the electric push rod. The discharge push plate (101) inside the casting cavity (2) is pushed out by the extension of the electric push rod, thereby assisting in the removal of the cast precast components.

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