Fabricated component and cast-in-place formwork close splicing device

Abstract

The utility model relates to the technical field of building construction, in particular to an assembly type component and cast-in-place formwork close splicing device, which is characterized in that a limiting component is arranged in a PC component, a close splicing component penetrating through an aluminum alloy formwork is arranged above the limiting component, and the close splicing component is connected with the limiting component, so that the aluminum alloy formwork is fastened on the PC component. When a user adjusts the dense splicing assembly, the dense splicing assembly can provide enough pressure for the aluminum alloy formwork, so that the aluminum alloy formwork can tightly press the PC component, no gap exists between the aluminum alloy formwork and the PC component, and the problem that the gap between the PC component and the aluminum alloy formwork is restrained through double faced adhesive tape or back ridges or is subjected to foaming agent spraying treatment is effectively solved. The actual effect is not ideal, and quality defects such as slurry flowing and slab staggering still occur.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a device for closely fitting assembled components and cast-in-place formwork. Background Art

[0002] Today, with the rapid development of the construction industry, aluminum alloy formwork is gradually occupying an important position in the formwork system market due to its advantages such as light weight, high strength, and easy recycling. Especially in the context of promoting the development of prefabricated buildings, the combined use of aluminum alloy formwork and precast concrete PC components is particularly crucial.

[0003] The connection between aluminum alloy formwork and PC components is often affected by a series of factors such as deformation of the aluminum formwork, dimensional deviation of the components, deviation of installation verticality, and limitation of positioning bars, resulting in gaps between PC components and aluminum alloy formwork, thus leading to quality defects such as slurry leakage and offset.

[0004] The existing method generally uses double-sided tape, backrest restraint or spraying foaming agent to treat the gap between PC components and aluminum alloy formwork, but the actual effect is not ideal, and quality defects such as slurry leakage and offset still occur.

[0005] The present utility model is studied and proposed in view of the deficiencies of the existing technology. Summary of the Utility Model

[0006] In view of the problem that the existing method of using double-sided tape, backrest restraint or spraying foaming agent to treat the gap between PC components and aluminum alloy formwork has an unsatisfactory actual effect and still has quality defects such as slurry leakage and offset, the technical solution adopted by the present utility model to solve its technical problems is as follows:

[0007] A device for closely fitting assembled components and cast-in-place formwork includes a device body, which includes a limiting component embedded in a PC component and a closely fitting component movably arranged above the limiting component. The closely fitting component penetrates through the aluminum alloy formwork and is connected to the limiting component to adjust the pressing degree of the aluminum alloy formwork on the PC component.

[0008] Further, the closely fitting component includes a first closely fitting component, and the first closely fitting component includes a closely fitting pin arranged vertically and penetrating through the aluminum alloy formwork. An embedded sleeve is provided at one end of the limiting component close to the closely fitting pin, and a thread is provided at the bottom of the closely fitting pin for threaded connection with the embedded sleeve, so that the closely fitting pin is detachably connected to the limiting component.

[0009] Further, the first closely fitting component further includes a closely fitting pin piece. The closely fitting pin is provided with a connection port for part of the closely fitting pin piece to extend into. The connection port penetrates through the closely fitting pin horizontally. The closely fitting pin piece extends into the connection port and abuts against the surface of the aluminum alloy formwork.

[0010] Further, the cross-section of the closely-fitted pin piece is trapezoidal.

[0011] Further, the limiting component includes a base mechanism located below the embedded sleeve and connected to the embedded sleeve, and a fixing part for preventing relative displacement of the embedded sleeve is provided on the outer side wall of the embedded sleeve.

[0012] Further, the closely-fitted component includes a second closely-fitted component. An embedded sleeve is provided at one end of the limiting component close to the second closely-fitted component. The second closely-fitted component includes a screw rod threadedly connected to the embedded sleeve, so that the second closely-fitted component is detachably connected to the limiting component.

[0013] Further, the second closely-fitted component includes a baffle component at one end far from the embedded sleeve, a fixed angle steel component below the baffle component, and a movable angle steel component respectively connected to the fixed angle steel component and the aluminum alloy formwork. The screw rod passes through the baffle component, the fixed angle steel component and the movable angle steel component, so as to be threadedly connected to the embedded sleeve.

[0014] Further, the cross-section of the fixed angle steel component is "L"-shaped and welded to the bottom of the baffle component.

[0015] Further, the movable angle steel component is provided with a long strip hole, and the hole length direction of the long strip hole is consistent with the moving direction of the movable angle steel component. A space for relative movement of the movable angle steel component is provided between the screw rod and the long strip hole.

[0016] Further, an elastic rubber pad connected to the aluminum alloy formwork is further provided at the bottom of the baffle component.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. For an assembled component and cast-in-place formwork close-fitting device of the present utility model, by arranging a limiting component in the PC component, a close-fitting component penetrating the aluminum alloy formwork is provided above the limiting component, and the close-fitting component is connected to the limiting component, so that the aluminum alloy formwork is fastened on the PC component. When the user adjusts the close-fitting component, the close-fitting component can provide sufficient pressure to the aluminum alloy formwork, so that the aluminum alloy formwork can press the PC component tightly, and there will be no gap between the aluminum alloy formwork and the PC component, effectively solving the problem that when using double-sided tape, back lining restraint or spraying foaming agent to deal with the gap between the PC component and the aluminum alloy formwork, the actual effect is not ideal, and quality defects such as slurry leakage and offset still occur;

[0019] 2. Through the flexible adjustment of the close-fitting component, the user can quickly and accurately complete the docking of the PC component and the aluminum alloy formwork, which is beneficial to saving construction time and effectively improving construction efficiency.

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of an assembled component and a cast-in-place formwork close-fitting device of the present utility model;

[0022] Figure 2 It is an exploded view of the first close-fitting component of the present utility model;

[0023] Figure 3 It is an exploded view of the second close-fitting component of the present utility model. Specific Embodiments

[0024] The embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0025] As Figures 1 to 3 shown, a close-fitting device for an assembled component and a cast-in-place formwork includes a device body 1. The device body 1 includes a limiting component 2 embedded in a PC component, and a close-fitting component 3 movably arranged above the limiting component 2. The close-fitting component 3 penetrates through the aluminum alloy formwork and is connected to the limiting component 2 to adjust the pressing degree of the aluminum alloy formwork on the PC component;

[0026] For a close-fitting device of an assembled component and a cast-in-place formwork of the present utility model, by arranging a limiting component in the PC component, and a close-fitting component penetrating through the aluminum alloy formwork is arranged above the limiting component, and the close-fitting component is connected to the limiting component, so that the aluminum alloy formwork is fastened on the PC component. When the user adjusts the close-fitting component, the close-fitting component can provide sufficient pressure to the aluminum alloy formwork, so that the aluminum alloy formwork can press the PC component tightly, and there will be no gap between the aluminum alloy formwork and the PC component, effectively solving the problem that using double-sided tape, backrest restraint or spraying foaming agent at the gap between the PC component and the aluminum alloy formwork has an unsatisfactory actual effect, and quality defects such as slurry leakage and offset still occur.

[0027] Furthermore, through the flexible adjustment of the close-fitting component 3, the user can quickly and accurately complete the docking of the PC component and the aluminum alloy formwork, which is beneficial to saving construction time and effectively improving construction efficiency.

[0028] As Figures 1 to 3The described close - fitting component 3 shown includes a first close - fitting component 31. The first close - fitting component 31 includes a close - fitting pin 311 arranged vertically and penetrating through the aluminum alloy formwork. At one end of the limiting component 2 close to the close - fitting pin 311, there is a pre - embedded sleeve 21. At the bottom of the close - fitting pin 311, there is a thread 3111 threadedly connected to the pre - embedded sleeve 21, so that the close - fitting pin 311 is detachably connected to the limiting component 2;

[0029] Furthermore, the close - fitting pin 311 and the pre - embedded sleeve 21 are threadedly connected, so that the connection between the close - fitting pin 311 and the pre - embedded sleeve 21 is detachable. When the user needs to disassemble or reinstall the connection between the aluminum alloy formwork and the PC component, the user can conveniently screw out the close - fitting pin 311 from the pre - embedded sleeve 21, which is beneficial to improving the flexibility and convenience of construction.

[0030] Furthermore, the pre - embedded sleeve 21 is pre - embedded in the PC component. The pre - embedded sleeve 21 provides a stable support point for the close - fitting pin 311, thus enhancing the connection stability between the aluminum alloy formwork and the PC component and helping to reduce quality problems caused by the displacement or deformation of the aluminum alloy formwork.

[0031] As Figures 1 to 3 The first close - fitting component 31 shown also includes a close - fitting pin piece 312. The close - fitting pin 311 is provided with a connection port 3112 for part of the close - fitting pin piece 312 to extend into. The connection port 3112 penetrates through the close - fitting pin 311 in the horizontal direction. The close - fitting pin piece 312 extends into the connection port 3112 and abuts against the surface of the aluminum alloy formwork;

[0032] Specifically, by setting the close - fitting pin piece 312 to penetrate through the close - fitting pin 311 in the horizontal direction and the close - fitting pin piece 312 to abut against the surface of the aluminum alloy formwork, when the user needs to tighten the connection between the aluminum alloy formwork and the PC component, the connection between the close - fitting pin 311 and the close - fitting pin piece 312 is tightened, so that the close - fitting pin piece 312 exerts a downward pressure on the aluminum alloy formwork through the close - fitting pin 311, thereby pressing the aluminum alloy formwork against the PC component; when the user needs to loosen the connection between the aluminum alloy formwork and the PC component, the close - fitting pin piece 312 in the close - fitting pin 311 is pulled out, so that the downward pressure applied to the aluminum alloy formwork disappears, and the aluminum alloy formwork moves relatively away from the PC component.

[0033] Furthermore, the connection between the close - fitting pin piece 312 and the close - fitting pin 311 can provide an adjustable pressing force. The user can adjust the tightness between the aluminum alloy formwork and the PC component according to actual needs, which is beneficial to improving the flexibility and practicality of the device.

[0034] Furthermore, the user can adjust the connection tightness between the aluminum alloy formwork and the PC component by simply plugging and unplugging the close-fitting pin 312, without the need for additional tools or complicated steps, which is conducive to improving the convenience and efficiency of operation.

[0035] like Figures 1 to 3 The cross section of the close-fitting pin piece 312 is trapezoidal in shape;

[0036] Specifically, the close-fitting pin piece 312 is arranged obliquely upward at one end away from the PC component.

[0037] Furthermore, the trapezoidal cross-section does not reduce the cross-sectional bearing capacity, so that when the closely-fitted pin piece 312 is subjected to vertical downward pressure, it can better disperse the pressure to various parts of the cross-section, thereby improving its compressive resistance, and effectively ensuring that the closely-fitted pin piece 312 can withstand greater pressure, thereby pressing the aluminum alloy template onto the PC component, reducing gaps, and preventing quality problems such as slurry flow.

[0038] Furthermore, the trapezoidal cross-section is set to make the close-fitting pin piece 312 smoother when inserted into and pulled out of the close-fitting pin 311, which is conducive to reducing the resistance during installation and disassembly and effectively improving construction efficiency. At the same time, due to the stability of the trapezoidal cross-section, the close-fitting pin piece 312 is not easy to shake or fall off after insertion, thereby effectively ensuring the firmness of the connection.

[0039] like Figures 1 to 3 The limiting assembly 2 shown includes a base mechanism 22 located below the embedded sleeve 21 and connected to the embedded sleeve 21. The outer wall of the embedded sleeve 21 is provided with a fixing portion 211 to prevent the embedded sleeve 21 from relative displacement.

[0040] Specifically, the fixing portion 211 is an anti-rotation flange symmetrically arranged on the outer side wall of the embedded sleeve 21 .

[0041] Furthermore, the symmetrically arranged anti-rotation flanges can effectively prevent the embedded sleeve 21 from rotating when subjected to external forces, which is beneficial to increasing the connection stability between the embedded sleeve 21 and the surrounding structure.

[0042] Furthermore, the anti-rotation flange is welded to the outer side wall of the embedded sleeve 21 .

[0043] Specifically, the base mechanism 22 is a tripod support base.

[0044] Furthermore, the setting of the tripod support base provides a stable three-point support for the embedded sleeve 21, thereby increasing the stability of the entire structure, so that the embedded sleeve 21 can maintain a stable position when subjected to various forces and vibrations, avoiding the risk of displacement and tilting.

[0045] Optionally, in some other embodiments, the base mechanism 22 can also be a four-foot support base, a five-foot support base, a six-foot support base, etc.

[0046] As Figures 1 to 3 shown, the close-fitting assembly 3 includes a second close-fitting assembly 32. One end of the limiting assembly 2 close to the second close-fitting assembly 32 is provided with a pre-embedded sleeve 21. The second close-fitting assembly 32 includes a screw 321 threadedly connected to the pre-embedded sleeve 21, so that the second close-fitting assembly 32 is detachably connected to the limiting assembly 2;

[0047] Further, through the threaded connection between the screw 321 and the pre-embedded sleeve 21, the second close-fitting assembly 32 and the limiting assembly 2 are detachably connected, so that the connection and disassembly between the aluminum alloy formwork and the PC component become simple and fast, which is beneficial to improving work efficiency.

[0048] Further, the threaded connection allows for fine adjustment within a certain range to meet the requirements of different application scenarios. By rotating the screw 321, the user can conveniently adjust the relative position between the second close-fitting assembly 32 and the limiting assembly 2, thereby changing the pressing degree of the aluminum alloy formwork on the PC component.

[0049] As Figures 1 to 3 shown, the second close-fitting assembly 32 includes a baffle assembly 322 at the end far from the pre-embedded sleeve 21, a fixed angle steel assembly 323 below the baffle assembly 322, and a movable angle steel assembly 324 respectively connected to the fixed angle steel assembly 323 and the aluminum alloy formwork. The screw 321 passes through the baffle assembly 322, the fixed angle steel assembly 323 and the movable angle steel assembly 324, so that it can be threadedly connected to the pre-embedded sleeve 21;

[0050] Specifically, the baffle assembly 322 is connected to the fixed angle steel assembly 323, the top of the movable angle steel assembly 324 is connected to the baffle assembly 322 through the fixed angle steel assembly 323, and one side of the movable angle steel assembly 324 is connected to the aluminum alloy template. The screw 321 passes through the baffle assembly 322, the fixed angle steel assembly 323 and the movable angle steel assembly 324 and is threadedly connected to the embedded sleeve 21 in sequence. When the user needs to tighten the connection between the aluminum alloy template and the PC component, he only needs to rotate the screw 321 so that the threaded fit between the screw 321 and the embedded sleeve 21 can apply a downward force to the baffle assembly 322 and the fixed angle steel assembly 323, driving the movable angle steel assembly 324 moves downward, the movable angle steel assembly 324 is connected to the aluminum alloy template, and the aluminum alloy template moves downward following the movable angle steel assembly 324, so that the aluminum alloy template presses the PC component; when the user needs to loosen the connection between the aluminum alloy template and the PC component, he only needs to rotate the screw 321 in the opposite direction so that the threaded fit between the screw 321 and the embedded sleeve 21 can apply an upward force to the baffle assembly 322 and the fixed angle steel assembly 323, driving the movable angle steel assembly 324 to move upward, the movable angle steel assembly 324 is connected to the aluminum alloy template, and the aluminum alloy template moves upward following the movable angle steel assembly 324, so that the aluminum alloy template is away from the PC component.

[0051] Furthermore, the movable angle steel assembly 324 and the aluminum alloy formwork are connected by pins or bolts. The pins or bolts connection enables the movable angle steel assembly 324 and the aluminum alloy formwork to be quickly installed and disassembled, which is beneficial to improving construction efficiency and reducing labor and time consumption; secondly, the pins or bolts connection can ensure a stable connection between the movable angle steel assembly 324 and the aluminum alloy formwork, which helps prevent loosening or falling off due to vibration or external force during construction.

[0052] Furthermore, the reasonable layout of the baffle assembly 322, the fixed angle steel assembly 323 and the movable angle steel assembly 324 makes the structure more evenly stressed, which helps to reduce structural deformation or damage caused by uneven stress and effectively extends the service life of the structure.

[0053] like Figures 1 to 3 The cross section of the fixed angle steel assembly 323 is shown to be "L" shaped and is welded to the bottom of the baffle assembly 322;

[0054] Furthermore, the cross-section of the fixed angle steel assembly 323 is "L"-shaped. The "L"-shaped cross-section enables the fixed angle steel assembly 323 to have good load-bearing capacity and stability. Secondly, the fixed angle steel assembly 323 is welded to the bottom of the baffle assembly 322. The fixed angle steel assembly 323 can serve as a stable supporting structure to effectively ensure the stability of the device.

[0055] Furthermore, the fixed angle steel component 323 with an "L"-shaped cross-section is easy to manufacture and install, which is conducive to improving production efficiency and reducing production costs.

[0056] Furthermore, the cross-section of the movable angle steel component 324 is also "L"-shaped, and the part of the fixed angle steel component 323 arranged in the horizontal direction is connected to the part of the movable angle steel component arranged in the horizontal direction.

[0057] As Figures 1 to 3 shown, the movable angle steel component 324 is provided with a long hole, the length direction of the long hole is consistent with the moving direction of the movable angle steel component 324, and there is a space for the relative movement of the movable angle steel component 324 between the screw 321 and the long hole;

[0058] Furthermore, through the space provided between the long hole and the screw 321, the movable angle steel component 324 can move relatively, so that the aluminum alloy formwork can be adjusted horizontally according to the actual needs of users, which is conducive to improving the flexibility and convenience of the device.

[0059] Furthermore, the setting of the long hole allows the movable angle steel component 324 to move in a certain range along a specific direction, which is convenient for users to flexibly adjust the relative position of the aluminum alloy formwork to adapt to different assembly scenarios.

[0060] As Figures 1 to 3 shown, an elastic rubber pad 325 connected to the aluminum alloy formwork is further provided at the bottom of the baffle component 322;

[0061] Furthermore, the elastic rubber pad 325 has good buffering and shock absorption performance, and can form a soft protective layer between the aluminum alloy formwork and the baffle component 322. When the user rotates the screw 321 and adjusts the relative position of the aluminum alloy formwork, the elastic rubber pad 325 can absorb part of the impact force, reduce the damage to the aluminum alloy formwork and the PC component, and thus extend the service life.

[0062] Furthermore, the elastic rubber pad 325 has certain sealing performance, can fill the tiny gaps between the aluminum alloy formwork and the baffle component 322, prevent dust, moisture or other impurities from entering the connection part, help to keep the connection part clean and dry, and reduce the risk of corrosion and wear.

[0063] The implementation manner of Embodiment 1 is as follows:

[0064] An assembled component and cast-in-place formwork close-fitting device, including a device body 1. The device body 1 includes a limiting component 2 embedded in the PC component, and a close-fitting component 3 movably arranged above the limiting component 2. The close-fitting component 3 includes a first close-fitting component 31. The first close-fitting component 31 includes a close-fitting pin 311 arranged vertically and penetrating through the aluminum alloy formwork. The limiting component 2 includes an embedded sleeve 21. The bottom of the close-fitting pin 311 is provided with a thread 3111 threadedly connected to the embedded sleeve 21. A connection port 3112 is provided at the connection between the close-fitting pin 311 and the surface of the aluminum alloy formwork. The first close-fitting component 31 includes a close-fitting pin piece 312 inserted and matched with the close-fitting pin 311 through the connection port 3112. When the user needs to tighten the connection between the aluminum alloy formwork and the PC component, insert and connect the close-fitting pin 311 and the close-fitting pin piece 312, so that the close-fitting pin piece 312 applies a downward pressure to the aluminum alloy formwork through the close-fitting pin 311, thereby pressing the aluminum alloy formwork against the PC component. When the user needs to loosen the connection between the aluminum alloy formwork and the PC component, pull out the close-fitting pin piece 312 in the close-fitting pin 311, so that the downward pressure applied to the aluminum alloy formwork disappears, and the aluminum alloy formwork moves relatively away from the PC component, effectively solving the problem that using double-sided tape, backrest restraint or spraying foaming agent to treat the gap between the PC component and the aluminum alloy formwork has an unsatisfactory actual effect, and still has quality defects such as slurry leakage and offset.

[0065] The implementation method of Embodiment 2 is as follows:

[0066] The difference between Embodiment 2 and Embodiment 1 is that the close-fitting component 3 includes a second close-fitting component 32. The second close-fitting component 32 includes a screw 321, a baffle component 322, a fixed angle steel component 323 and a movable angle steel component 324. The screw 321 sequentially penetrates through the baffle component 322, the fixed angle steel component 323 and the movable angle steel component 324 and is threadedly connected to the embedded sleeve 21 in the PC component. One side of the movable angle steel component 324 is connected to the aluminum alloy formwork. When the user needs to tighten the connection between the aluminum alloy formwork and the PC component, just rotate the screw 321, so that the threaded fit between the screw 321 and the embedded sleeve 21 can apply a downward force to the baffle component 324 and the fixed angle steel component 323, driving the movable angle steel component 324 to move downward. The movable angle steel component 324 is connected to the aluminum alloy formwork, and the aluminum alloy formwork follows the movable angle steel component 324 to move downward, so that the aluminum alloy formwork presses against the PC component. When the user needs to loosen the connection between the aluminum alloy formwork and the PC component, just rotate the screw 321 in the reverse direction, so that the threaded fit between the screw 321 and the embedded sleeve 21 can apply an upward force to the baffle component 322 and the fixed angle steel component 323, driving the movable angle steel component 324 to move upward. The movable angle steel component 324 is connected to the aluminum alloy formwork, and the aluminum alloy formwork follows the movable angle steel component 324 to move upward, so that the aluminum alloy formwork moves away from the PC component.

[0067] The above only further illustrates the technical content of the present utility model by way of examples for the convenience of readers' easier understanding, but it does not mean that the implementation modes of the present utility model are limited thereto. Any technical extension or re-creation made according to the present utility model shall be protected by the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. An assembled component and cast-in-place formwork close-fitting device, comprising a device body (1), characterized in that: The device body (1) includes a limiting component (2) embedded in the PC component, and a close-fitting component (3) movably arranged above the limiting component (2). The close-fitting component (3) penetrates through the aluminum alloy formwork and is connected to the limiting component (2) to adjust the pressing degree of the aluminum alloy formwork on the PC component.

2. The prefabricated component and cast-in-place formwork close-fitting device according to claim 1, wherein: The close-fitting component (3) includes a first close-fitting component (31). The first close-fitting component (31) includes a close-fitting pin (311) arranged vertically and penetrating through the aluminum alloy formwork. One end of the limiting component (2) close to the close-fitting pin (311) is provided with an embedded sleeve (21). The bottom of the close-fitting pin (311) is provided with a thread (3111) threadedly connected to the embedded sleeve (21), so that the close-fitting pin (311) is detachably connected to the limiting component (2).

3. The assembled component and cast-in-place formwork close-fitting device according to claim 2, characterized in that: The first close-fitting component (31) further includes a close-fitting pin piece (312). The close-fitting pin (311) is provided with a connection port (3112) for part of the close-fitting pin piece (312) to extend into. The connection port (3112) penetrates through the close-fitting pin (311) in the horizontal direction. The close-fitting pin piece (312) extends into the connection port (3112) and abuts against the surface of the aluminum alloy formwork.

4. The prefabricated component and cast-in-place formwork close-fitting device according to claim 3, characterized in that: The cross-section of the close-fitting pin piece (312) is trapezoidal.

5. The prefabricated component and cast-in-place formwork closely assembled device according to claim 2, wherein: The limiting component (2) includes a base mechanism (22) located below the embedded sleeve (21) and connected to the embedded sleeve (21). The outer side wall of the embedded sleeve (21) is provided with a fixing part (211) to prevent relative displacement of the embedded sleeve (21).

6. The assembled component and cast-in-place formwork close-fitting device according to claim 1, characterized in that: The close-fitting component (3) includes a second close-fitting component (32). One end of the limiting component (2) close to the second close-fitting component (32) is provided with an embedded sleeve (21). The second close-fitting component (32) includes a screw rod (321) threadedly connected to the embedded sleeve (21), so that the second close-fitting component (32) is detachably connected to the limiting component (2).

7. An assembled component and in-situ formwork close-fitting device according to claim 6, characterized in that: The second close-fitting component (32) includes a baffle component (322) located at one end far from the embedded sleeve (21), a fixed angle steel component (323) located below the baffle component (322), and a movable angle steel component (324) respectively connected to the fixed angle steel component (323) and the aluminum alloy formwork. The screw rod (321) passes through the baffle component (322), the fixed angle steel component (323), and the movable angle steel component (324) so as to be threadedly connected to the embedded sleeve (21).

8. The prefabricated component and cast-in-place formwork closely-fitting device according to claim 7, characterized in that: The cross-section of the fixed angle steel component (323) is "L"-shaped and welded to the bottom of the baffle component (322).

9. The prefabricated component and cast-in-place formwork close-fitting device according to claim 7, characterized in that: The movable angle steel component (324) is provided with a long strip hole. The hole length direction of the long strip hole is consistent with the moving direction of the movable angle steel component (324). A space for the relative movement of the movable angle steel component (324) is provided between the screw rod (321) and the long strip hole.

10. A prefabricated component and cast-in-place formwork closely assembled device according to claim 7, characterized in that: The bottom of the baffle component (322) is further provided with an elastic rubber pad (325) connected to the aluminum alloy formwork.

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