A prefabricated slab structure and its construction method

Abstract

This invention discloses a prefabricated slab structure and its construction method, belonging to the field of prefabricated slab technology. The structure includes a first prefabricated slab and a second prefabricated slab connected to the side of the first prefabricated slab. Several assembly frames are installed on the edge of the first prefabricated slab near the second prefabricated slab. The assembly frames are rotatably connected to the first prefabricated slab, and telescopic pull plates are provided inside the assembly frames, slidingly engaging with the inner wall of the assembly frames. Each assembly frame includes a mounting block with a nail penetrating through it. One end of the nail is located outside the assembly frame, and the other end is threaded to the surface of the telescopic pull plate. Fastening studs are provided on the telescopic pull plate for threaded fastening to the surface of the second prefabricated slab. The assembly frames, telescopic pull plates, and fastening studs on the prefabricated slab improve the stability of the assembly between the first and second prefabricated slabs, reducing the likelihood of loosening or detachment and ensuring the safety of the prefabricated slabs.

Description

Technical Field

[0001] This invention relates to the field of precast slab technology, and more specifically, to an assembled precast slab structure and its construction method. Background Technology

[0002] Precast slabs refer to precast concrete components manufactured and processed in a prefabrication yard, which can be directly transported to the construction site for installation. Precast slabs used in existing road construction typically consist of two layers of concrete, poured in two stages, and firmly bonded together by reinforcing steel bars between the layers.

[0003] Precast slabs have a wide range of applications and must be designed to prevent loosening or even falling off. If this function is not provided, the assembly effect of the precast slabs will be poor, and the stability of the precast slabs after assembly will not meet the requirements, making them prone to loosening or even falling off.

[0004] A search revealed that Chinese invention patent CN110453847A discloses a prefabricated slab end positioning and connection device, comprising a prefabricated slab, connecting components, edge positioning plates, a center positioning plate, and a post-pouring strip at the slab end. The connecting components are used to connect the prestressed steel strands at the ends of adjacent prefabricated slabs. The edge positioning plates and the center positioning plate are used to determine the installation position of the prefabricated slab. The post-pouring strip at the slab end is the area enclosed by the prefabricated slab, the edge positioning plates, and the center positioning plate, used for pouring concrete. This patent enables precise positioning of prefabricated slabs during assembly, improving assembly efficiency and saving installation time.

[0005] However, the prefabricated slabs in the above-mentioned scheme still pose a risk of loosening or even falling off, affecting their normal use. Therefore, how to improve the assembly stability of prefabricated slabs is a pressing problem to be solved in this field. Summary of the Invention

[0006] 1. The technical problem that the invention aims to solve

[0007] The purpose of this invention is to overcome the problem of poor assembly stability of precast slabs in the prior art, and to provide a prefabricated slab structure and its construction method. This solution improves the assembly stability of the precast slab structure, preventing loosening or even detachment of the assembled slabs.

[0008] 2. Technical Solution

[0009] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0010] On one hand, the present invention provides an assembled prefabricated panel structure, comprising a first prefabricated panel and a second prefabricated panel connected to the side of the first prefabricated panel;

[0011] A plurality of assembly frames are installed on one side edge of the first precast slab near the second precast slab. The assembly frames are rotatably connected to the first precast slab. A telescopic pull plate is provided inside the assembly frame, and the telescopic pull plate is slidably engaged with the inner wall of the assembly frame.

[0012] The assembly frame includes a mounting block, on which a nail is provided through. One end of the nail is located outside the assembly frame, and the other end is used to be threaded to the surface of the telescopic pull plate.

[0013] The telescopic plate is provided with fastening studs, which are used to fasten to the surface of the second precast plate.

[0014] Furthermore, it includes an anti-loosening unit, which includes an auxiliary anti-detachment disc. One end of the fastening stud near the second precast slab is connected to the auxiliary anti-detachment disc. A holding slot is located at the bottom of the auxiliary anti-detachment disc, and a connecting disc is installed in the holding slot. A stabilizing suction cup for adsorbing the second precast slab is connected to the connecting disc of the auxiliary anti-detachment disc.

[0015] Furthermore, it includes a strength unit located inside the precast slab, the strength unit including a groove, the groove containing a plurality of steel bars; the groove also contains a reinforcing rod, the two ends of the reinforcing rod being connected to the inner wall of the groove via mounting plates.

[0016] Furthermore, it includes auxiliary reinforcing ribs, which are connected to the reinforcing rod and the mounting plate respectively.

[0017] Furthermore, it includes an insulation unit located inside the precast slab, the insulation unit having a holding cavity, a first insulation board and a second insulation board installed in the holding cavity, and an insulation layer provided between the first insulation board and the second insulation board.

[0018] Furthermore, it includes an adhesive layer, one side of which is fixedly connected to the insulation layer, and the other side is fixedly connected to the second insulation board.

[0019] Furthermore, positioning posts and positioning grooves are provided on the connecting sides of the first precast slab and the second precast slab to guide the connection between the first precast slab and the second precast slab.

[0020] Furthermore, a sealing gasket is adhered to the inner wall of the positioning groove to seal the connection gap between the positioning post and the positioning groove.

[0021] Furthermore, the first precast slab and / or the second precast slab are provided with drainage channels.

[0022] On the other hand, the present invention also provides a construction method for a prefabricated slab structure as described in any of the above claims, comprising the following steps:

[0023] S1. Place the first precast slab at the designated position, place the second precast slab to be assembled on the side of the first precast slab, and snap it together using the positioning post and positioning groove.

[0024] S2. Rotate the assembly frame on the first precast slab so that the assembly frame moves the telescopic pull plate above the second precast slab; loosen the nails on the mounting block and pull the telescopic pull plate out of the assembly frame to the required length;

[0025] S3. Rotate the fastening stud. Under the action of the fastening stud, the auxiliary anti-detachment disc comes into contact with the second precast plate.

[0026] S4. Continue to tighten the fastening studs. The connecting plate in the holding slot will move the stabilizing suction cup, so that the stabilizing suction cup is tightly attached to the second precast panel.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0029] (1) The prefabricated panel structure of the present invention, through the setting of components such as assembly frame, telescopic pull plate and fastening stud, makes the assembly stability of the first prefabricated panel and the second prefabricated panel better, and is less likely to loosen or even fall off, thus ensuring the safety of the prefabricated panel.

[0030] (2) The prefabricated panel structure of the present invention further improves the stability of the installation between the telescopic pull plate and the second prefabricated panel by setting an anti-loosening unit, avoids loosening, and realizes the function of preventing loosening or even falling off after the prefabricated panel is assembled.

[0031] (3) The prefabricated slab structure of the present invention enhances the overall strength of the first prefabricated slab and the second prefabricated slab by setting the strength unit, and the prefabricated slab has a better compressive strength, avoiding deformation or breakage of the prefabricated slab.

[0032] (4) The prefabricated panel structure of the present invention, through the setting of the insulation unit, under the action of the first insulation board, the second insulation board and the insulation layer inside the holding cavity, makes the insulation effect inside the prefabricated panel better; under the action of the adhesive layer, the connection between the insulation layer and the second insulation board is more solid and less prone to cracking; thus, the prefabricated panel makes the overall wall insulation effect better and more durable and practical when used. Attached Figure Description

[0033] Figure 1 This is a three-dimensional view of a prefabricated slab structure.

[0034] Figure 2 This is the front view of the prefabricated slab structure.

[0035] Figure 3 This is a cross-sectional schematic diagram of a prefabricated slab structure.

[0036] Figure 4 A schematic diagram of the anti-loosening unit;

[0037] Figure 5 This is a schematic diagram of the strength element.

[0038] Figure 6 This is a schematic diagram of the insulation unit.

[0039] Explanation of the labels in the diagram:

[0040] 1. First precast slab; 101. Second precast slab;

[0041] 102. Assembly frame; 103. Telescopic pull plate; 104. Fastening studs; 105. Positioning post; 106. Positioning groove; 107. Water guide groove; 108. Sealing gasket; 110. Base plate;

[0042] 2. Anti-loosening unit; 201. Stabilizing suction cup; 202. Container slot; 2031. Connecting tray; 2032. Auxiliary anti-detachment tray;

[0043] 3. Strength unit; 301. Reinforcing bar column; 302. Trench; 3031. Mounting plate; 3032. Fastening bolt; 3033. Reinforcing rod; 3034. Auxiliary reinforcing rib;

[0044] 4. Insulation unit; 401. Container cavity; 402. First insulation board; 4031. Insulation layer; 4032. Adhesive layer; 4033. Second insulation board. Detailed Implementation

[0045] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0046] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0047] An embodiment of the present invention provides a prefabricated panel structure, such as... Figure 1 and Figure 2 As shown, the assembly includes a first precast slab 1 and a second precast slab 101 connected to the side of the first precast slab 1. A temperature control plate for maintaining a constant temperature inside the first precast slab 1 and the second precast slab 101 can be installed on the inner walls of both slabs. A base plate 110 is installed at the bottom of both slabs. Several equidistant assembly frames 102 are installed on one edge of the first precast slab 1 near the second precast slab 101. The assembly frames 102 are rotatably connected to the first precast slab 1, and a telescopic pull plate 103 is provided inside the assembly frame 102, slidingly engaging with the inner wall of the assembly frame 102.

[0048] The assembly frame 102 includes a mounting block, the surface of which contacts the surface of the telescopic pull plate. A nail is threaded through the mounting block, one end of which penetrates the assembly frame and is threadedly connected to the mounting block. The nail is used to fix the telescopic pull plate. One end of the nail is located outside the assembly frame 102, and the other end is threadedly fastened to the surface of the telescopic pull plate 103. A fastening stud 104 is threadedly connected to the telescopic pull plate 103, and the fastening stud 104 is threadedly fastened to the surface of the second precast slab 101.

[0049] It should be noted that the terms "first precast slab" and "second precast slab" in this specification are used for clarity of description only and are not intended to limit the scope of implementation. The prefabricated slab structure in this embodiment can be assembled from multiple precast slabs, and the "second precast slab" can serve as an active connecting plate to connect other precast slabs.

[0050] The prefabricated slab structure of the present invention, through the setting of components such as assembly frame, telescopic pull plate and fastening stud, makes the assembly stability of the first prefabricated slab and the second prefabricated slab better, and is less likely to loosen or even fall off, thus ensuring the safety of the prefabricated slab in use.

[0051] To improve the overall assembly effect and performance such as strength of the prefabricated slab structure in this embodiment, the following improvements are further made:

[0052] Regarding the anti-loosening unit:

[0053] The first precast slab 1 and the second precast slab 101 are further prevented from loosening by an anti-loosening unit. For example... Figure 3 and Figure 4 As shown, the anti-loosening unit 2 includes an auxiliary anti-detachment disc 2032. One end of the fastening stud 104 near the second precast plate 101 is connected to the auxiliary anti-detachment disc 2032, and the auxiliary anti-detachment disc 2032 and the fastening stud 104 are rotatably engaged. A holding slot 202 is located at the bottom of the auxiliary anti-detachment disc 2032. A connecting disc 2031 for preventing loosening is installed inside the holding slot 202, and a stabilizing suction cup 201 for adsorbing the second precast plate 101 is connected to the connecting disc 2031.

[0054] The prefabricated panel structure of the present invention further improves the stability of the installation between the telescopic pull plate and the second prefabricated panel by setting an anti-loosening unit, avoiding loosening and realizing the function of preventing loosening or even falling off after the prefabricated panel is assembled.

[0055] During implementation, the auxiliary anti-detachment disc 2032 is driven to move under the action of the fastening stud 104, so that the auxiliary anti-detachment disc 2032 moves to contact the surface of the second precast slab 101. Under the action of the auxiliary anti-detachment disc 2032, the stability of the telescopic pull plate 103 and the second precast slab 101 during installation is enhanced.

[0056] When the auxiliary anti-detachment disc 2032 moves to contact the surface of the second precast slab 101, the stabilizing suction cup 201 moves to contact and adhere to the surface of the second precast slab 101 under the action of the connecting disc 2031 inside the holding groove 202. The combined action of the connecting disc 2031 and the stabilizing suction cup 201 enhances the stability of the installation between the telescopic pull plate 103 and the second precast slab 101, reducing the likelihood of loosening and further preventing loosening or even detachment of the precast slab after assembly.

[0057] Regarding strength elements:

[0058] Both the first precast slab 1 and the second precast slab 101 are internally provided with strength units 3, such as Figure 3 and Figure 5 As shown, the strength unit 3 includes a trough 302, and a number of steel bars 301 are provided inside the trough 302; a number of equally spaced reinforcing rods 3033 are also provided inside the trough 302, and the two ends of the reinforcing rods 3033 are connected to the inner wall of the trough 302 through mounting plates 3031.

[0059] The mounting plate 3031 is threadedly connected to a fastening bolt 3032 for fixing the mounting plate 3031 to the inner wall of the groove 302. One end of the fastening bolt 3032 passes through the mounting plate 3031 and is threadedly fastened to the inner wall of the groove 302.

[0060] In addition, the reinforcing rod 3033 is equipped with an auxiliary reinforcing rib 3034 for improving the compressive strength of the first precast slab 1 and the second precast slab 101. One end of the auxiliary reinforcing rib 3034 is fixed to the mounting plate 3031.

[0061] The prefabricated slab structure of the present invention enhances the overall strength of the first and second prefabricated slabs by setting strength units, resulting in better compressive strength of the prefabricated slabs and preventing deformation or breakage.

[0062] During implementation, the overall stability of the first precast slab 1 and the second precast slab 101 is enhanced firstly by the reinforcement columns 301 inside the trough 302. Further, the mounting plates 3031 at both ends of the reinforcing rod 3033 contact the inner wall of the trough 302, and the fastening bolts 3032 are tightened, fixing the mounting plates 3031 to the inner wall of the trough 302. Under the combined action of the reinforcing rod 3033 and the auxiliary reinforcing ribs 3034, the overall strength of the first precast slab 1 and the second precast slab 101 is greatly improved, resulting in better compressive strength.

[0063] Both the first precast slab 1 and the second precast slab 101 have equally spaced injection holes on their surfaces. Molding is then poured into the interior of the first precast slab 1 and the second precast slab 101 through these injection holes. This design helps to prevent the surfaces of the first precast slab 1 and the second precast slab 101 from cracking.

[0064] Regarding the insulation unit:

[0065] Both the first precast slab 1 and the second precast slab 101 are equipped with internal insulation units. For example... Figure 3 and Figure 6 As shown, the insulation unit 4 has a holding cavity 401, in which a first insulation plate 402 and a second insulation plate 4033 are installed. The first insulation plate 402 is in contact with the inner wall of the holding cavity 401, and an insulation layer 4031 is provided between the first insulation plate 402 and the second insulation plate 4033.

[0066] Furthermore, it may also include an adhesive layer 4032, one side of which is fixedly connected to the insulation layer 4031, and the other side is fixedly connected to the second insulation board 4033.

[0067] The prefabricated panel structure of the present invention, through the setting of the insulation unit, improves the insulation effect inside the prefabricated panel under the action of the first insulation board, the second insulation board and the insulation layer inside the holding cavity; under the action of the adhesive layer, the connection between the insulation layer and the second insulation board is more solid and less prone to cracking; thus, the prefabricated panel has a good overall wall insulation effect when used, and is more durable and practical.

[0068] During implementation, the first insulation board 402 and the insulation layer 4031 inside the containing cavity 401 enhance the insulation effect of the first precast slab 1 and the second precast slab 101. The adhesive layer 4032 ensures a stronger bond between the insulation layer 4031 and the second insulation board 4033, reducing the likelihood of cracking. The second insulation board 4033 further improves the insulation effect inside the first precast slab 1 and the second precast slab 101, resulting in better insulation and making the first and second precast slabs 101 more durable and practical.

[0069] In order to facilitate accurate positioning when the first precast slab 1 and the second precast slab 101 are connected, in this embodiment, positioning posts 105 and positioning grooves 106 are provided on the connecting side of the first precast slab 1 and the second precast slab 101, respectively. The positioning posts 105 and positioning grooves 106 are engaged with each other to realize the connection guidance between the first precast slab 1 and the second precast slab 101.

[0070] It should be noted that the positioning post can be set on the first precast slab, and correspondingly, a positioning groove is set on the second precast slab; of course, the positioning post can also be set on the second precast slab, and correspondingly, a positioning groove is set on the first precast slab. Similarly, it is not limited to the structure of positioning post and positioning groove, and other structural forms that can quickly achieve positioning can also be adopted.

[0071] Furthermore, in this embodiment, a sealing gasket 108 is adhered to the inner wall of the positioning groove 106. The sealing gasket 108 is tightly attached to the surface of the positioning post 105 to seal the connection gap between the positioning post 105 and the positioning groove 106.

[0072] Preferably, the surface of the precast slab can be provided with equally spaced drainage channels 107 to promptly drain rainwater and sewage from the precast slab and ensure the effectiveness of the precast slab.

[0073] This invention also provides a construction method for assembling the prefabricated slab structure described above, specifically including the following steps:

[0074] S1. Place the first precast slab 1 at the designated position, place the second precast slab 101 to be assembled on the side of the first precast slab 1, and snap it together by positioning post 105 and positioning groove 106.

[0075] S2. Rotate the assembly frame 102 on the first precast plate 1 so that the assembly frame 102 drives the telescopic pull plate 103 to move above the second precast plate 101; loosen the nails on the mounting block and pull the telescopic pull plate 103 out of the assembly frame 102 to the required length.

[0076] S3. Rotate the fastening stud 104. Under the action of the fastening stud 104, the auxiliary anti-detachment disc 2032 comes into contact with the second precast plate 101.

[0077] S4. Continue to tighten the fastening stud 104. The connecting plate 2031 in the holding groove 202 drives the stabilizing suction cup 201 to move, so that the stabilizing suction cup 201 is tightly attached to the second precast plate 101.

[0078] In use, first, place the first precast slab 1 in the designated position, and then place the second precast slab 101 to be assembled on the side of the first precast slab 1, so that the positioning post 105 on the first precast slab 1 engages with the positioning groove 106 of the second precast slab 101. At this time, the gap between the positioning post 105 and the positioning groove 106 is sealed by the sealing gasket 108, ensuring a sealing effect during the installation of the first precast slab 1 and the second precast slab 101. In addition, when encountering rainy weather, rainwater and dirt easily accumulate on the surface of the first precast slab 1 and the second precast slab 101. The water guide channel 107 allows rainwater and dirt to be discharged from the surface of the precast slabs in a timely manner.

[0079] Subsequently, the assembly frame 102 on the surface of the first precast slab 1 is rotated, causing the assembly frame 102 to move the telescopic pull plate 103 above the second precast slab 101. The nails on the mounting block are loosened, and the telescopic pull plate 103 is pulled out from the assembly frame 102 to the desired length. The fastening stud 104 is rotated, causing the auxiliary anti-detachment disc 2032 to move until it contacts the surface of the second precast slab 101. The auxiliary anti-detachment disc 2032 enhances the stability of the telescopic pull plate 103 during installation with the second precast slab 101.

[0080] When the auxiliary anti-detachment disc 2032 moves to contact the surface of the second precast slab 101, the connecting disc 2031 inside the holding slot 202 drives the stabilizing suction cup 201 to move, so that the stabilizing suction cup 201 moves to fit against the surface of the second precast slab 101. Under the combined action of the connecting disc 2031 and the stabilizing suction cup 201, the installation stability between the telescopic pull plate 103 and the second precast slab 101 is higher, avoiding loosening. This achieves the function of preventing loosening or even falling off after the precast slab is assembled, thus making the assembly effect of the precast slab better when it is used.

[0081] Furthermore, the overall stability of the first precast slab 1 and the second precast slab 101 is enhanced by the steel reinforcement columns 301 inside the trough 302. In addition, the mounting plates 3031 at both ends of the reinforcing rod 3033 contact the inner wall of the trough 302, and the fastening bolts 3032 are tightened. Under the action of the fastening bolts 3032, the mounting plates 3031 are fixed to the inner wall of the trough 302. Under the combined action of the reinforcing rod 3033 and the auxiliary reinforcing ribs 3034, the overall strength of the first precast slab 1 and the second precast slab 101 is greatly improved, resulting in better compressive strength of the first precast slab 1 and the second precast slab 101.

[0082] The first precast slab 1 and the second precast slab 101 are poured into the interior through the injection hole, resulting in higher internal strength of the first precast slab 1 and the second precast slab 101. The above strength unit setting can prevent the surface of the first precast slab 1 and the second precast slab 101 from cracking.

[0083] Furthermore, the insulation effect of the first insulation board 402 and the insulation layer 4031 inside the holding cavity 401 is improved, resulting in better insulation of the first precast slab 1 and the second precast slab 101. The adhesive layer 4032 makes the insulation layer 4031 and the second insulation board 4033 more firmly bonded and less prone to cracking. The second insulation board 4033 further improves the insulation effect of the first precast slab 1 and the second precast slab 101, making them more durable and practical.

[0084] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited to this. To avoid repetition, repeated content in each embodiment has been omitted, but this should not be construed as meaning that the corresponding embodiment does not include features from other embodiments. Features that cooperate with each other in different embodiments can also be combined with each other. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fabricated precast panel structure, characterized by, The first prefabricated plate (1) and the second prefabricated plate (101) connected with the side of the first prefabricated plate (1) are provided. A plurality of assembly frames (102) are mounted on the side edge of the first prefabricated plate (1) close to the second prefabricated plate (101), the assembly frame (102) is rotationally connected with the first prefabricated plate (1), and a telescopic pull plate (103) is arranged in the assembly frame (102). The assembly frame (102) comprises a mounting block, a nail body is arranged through the mounting block, one end of the nail body is located outside the assembly frame (102), and the other end is used for being threadedly fastened with the surface of the telescopic pull plate (103). A fastening stud (104) is arranged on the telescopic pull plate (103), and the fastening stud (104) is used for being threadedly fastened with the surface of the second prefabricated plate (101). The anti-loosening unit (2) comprises an auxiliary anti-dropping disc (2032), one end of the fastening stud (104) close to the second prefabricated plate (101) is connected with the auxiliary anti-dropping disc (2032), a containing groove (202) is arranged at the bottom of the auxiliary anti-dropping disc (2032), a connecting disc (2031) is arranged in the containing groove (202), and a stable suction disc (201) for adsorbing the second prefabricated plate (101) is arranged on the connecting disc (2031) of the auxiliary anti-dropping disc (2032).

2. The prefabricated panel structure according to claim 1, characterized in that The strength unit (3) arranged in the prefabricated plate comprises a groove body (302), a plurality of steel bars (301) are arranged in the groove body (302), and a reinforcing rod (3033) is further arranged in the groove body (302).

3. The prefabricated panel structure according to claim 2, characterized in that The auxiliary reinforcing rib (3034) is connected with the reinforcing rod (3033) and the mounting disc (3031) respectively.

4. The prefabricated panel structure according to claim 1, wherein The heat preservation unit (4) arranged in the prefabricated plate comprises a containing cavity (401), a first heat preservation plate (402) and a second heat preservation plate (4033) are arranged in the containing cavity (401), and a heat preservation layer (4031) is arranged between the first heat preservation plate (402) and the second heat preservation plate (4033).

5. The prefabricated panel structure according to claim 4, characterized in that The adhesion layer (4032) is fixedly connected with the heat preservation layer (4031) on one side and fixedly connected with the second heat preservation plate (4033) on the other side.

6. The prefabricated panel structure according to claim 1, wherein The first prefabricated plate (1) and the second prefabricated plate (101) are provided with a positioning column (105) and a positioning groove (106) corresponding to the connection side, so as to realize the connection guidance of the first prefabricated plate (1) and the second prefabricated plate (101).

7. The prefabricated panel structure according to claim 6, characterized in that The sealing gasket (108) is adhered to the inner wall of the positioning groove (106), and is used for sealing the connection gap between the positioning column (105) and the positioning groove (106).

8. The prefabricated panel structure according to claim 1, characterized in that, The first prefabricated plate (1) and / or the second prefabricated plate (101) is provided with a water guide groove (107) for water drainage.

9. A method of constructing a fabricated precast panel structure as claimed in any one of claims 1 to 8, characterised in that, The method comprises the following steps: S1, placing the first prefabricated plate (1) at a designated position, placing the second prefabricated plate (101) to be assembled at the side of the first prefabricated plate (1), and correspondingly arranging a positioning column (105) and a positioning groove (106) on the connecting side of the first prefabricated plate (1) and the second prefabricated plate (101) for clamping through the positioning column (105) and the positioning groove (106); S2, rotating the assembling frame (102) on the first prefabricated plate (1) to make the assembling frame (102) drive the telescopic pull plate (103) to move above the second prefabricated plate (101); unscrewing the nail body on the mounting block, and taking out the telescopic pull plate (103) from the inside of the assembling frame (102) to the required length; S3, rotating the fastening stud (104), under the action of the fastening stud (104), the auxiliary anti-dropping disc (2032) is in contact with the second prefabricated plate (101); S4, continue to tighten the fastening stud (104), the connecting disc (2031) in the containing groove (202) drives the stable suction disc (201) to move, so that the stable suction disc (201) is tightly attached to the second prefabricated plate (101).

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