Prefabricated building prefabricated external wall panel connecting piece

Abstract

The invention relates to the technical field of prefabricated external wall panels, and discloses a prefabricated building prefabricated external wall panel connecting piece which comprises external wall panel bodies, connecting protection mechanisms are symmetrically arranged on the other two sides of the external wall panel bodies, and a connecting mechanism is arranged between the external wall panel bodies. According to the fabricated building prefabricated external wall panel connecting piece, the limiting connecting plate is in lap joint with the limiting supporting plate, a gap is kept between the limiting connecting plate and the external wall panel body and between the limiting supporting plate and the external wall panel body, the gap is sealed through the first buffering supporting strip and the second buffering supporting strip, and the first buffering supporting strip and the second buffering supporting strip have elasticity; a buffer space can be reserved during thermal expansion and cold contraction, the connection stability is improved conveniently, the mounting top plate is conveniently connected with all the lapped limiting connecting plates and limiting supporting plates through the clamping round bolts, and the mounting top plate, the limiting top plate, the limiting connecting plates and the limiting supporting plates are conveniently and fixedly connected through the fastening studs; and two adjacent external wall panel bodies can be conveniently connected.

Description

Technical Field

[0001] This invention relates to the field of prefabricated exterior wall panel technology, specifically to a connector for prefabricated exterior wall panels in prefabricated buildings. Background Technology

[0002] Exterior wall cladding is a construction method in which panels are suspended on the outside of a wall using methods such as dry hanging. It is a type of building material used for exterior walls. In prefabricated building construction, connectors are needed to connect the prefabricated exterior wall cladding panels.

[0003] In existing technology, such as the Chinese patent announcement CN219527985U entitled "A Connector for Prefabricated External Wall Panels in Assembled Buildings," two prefabricated wall panels are included. The ends of the two prefabricated wall panels are connected by a split connecting component. The connecting component includes two connecting parts, which are connected by a locking member. Each connecting part has a pouring hole and a perforated permeable plate connected to the outlet end of the pouring hole. In this utility model, the connector uses a combined connecting component, which can connect the two connecting parts together to clamp and connect the two prefabricated wall panels. Through the structure of the pouring hole and the permeable plate, sealing material can be introduced through the pouring hole and seep out through the permeable plate to the gap at the connection between the prefabricated wall panel and the connecting part, thus further sealing the connection and preventing gaps from appearing at the connection. This prevents external rainwater and dirt from entering the gaps and causing corrosion, which would affect the stability of the prefabricated wall panel assembly connection.

[0004] In the aforementioned patents, although gaps are avoided at the connection between the two, preventing external rainwater and dirt from entering the gaps and causing corrosion that could affect the stability of the prefabricated wall panel assembly, concrete is prone to thermal expansion and contraction, and the connection is not strong enough, affecting the overall stability of the connection. Therefore, there is an urgent need for a prefabricated exterior wall panel connector for prefabricated buildings. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated exterior wall panel connector for prefabricated buildings, in order to solve the problems mentioned in the background art, such as the easy thermal expansion and contraction of concrete materials and the insufficient stability of the connection, which affect the overall stability of the connection.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated exterior wall panel connector for prefabricated buildings, comprising an exterior wall panel body, symmetrically arranged limiting support plates on both sides of the exterior wall panel body, a connecting support plate on one side of the exterior wall panel body, and a connecting clip adapted to the connecting support plate on the other side of the exterior wall panel body, the exterior wall panel bodies being connected and fixed together by the connecting support plate and the connecting clip, symmetrically arranged connecting protection mechanisms on the other two sides of the exterior wall panel body, and a connecting mechanism between the exterior wall panel bodies; The connecting mechanism includes a limiting plate, a limiting support plate slidably disposed at the bottom of the limiting plate, and linearly distributed snap-fit ​​holes on the limiting plate and the limiting support plate. The limiting plate and the limiting support plate are connected and fixed by a fixing component, which includes a first buffer support bar and a second buffer support bar. The first buffer support bar is snap-fitted and fixed to the limiting plate by a fixing groove, and the second buffer support bar is snap-fitted and fixed to the limiting support plate by a fixing groove. A mounting top plate is disposed at the top of the limiting plate, and a snap-fit ​​bolt adapted to the snap-fit ​​holes is disposed at the bottom of the mounting top plate.

[0007] As a preferred embodiment of the present invention, the connecting protection mechanism includes a waterproof outer shell and a sealing component. The sealing component is disposed between the waterproof outer shells. The sealing component includes a first half-shell, a second half-shell is symmetrically disposed on one side of the first half-shell, and snap-fit ​​protrusions are symmetrically disposed on both sides of the second half-shell. Snap-fit ​​grooves adapted to the snap-fit ​​protrusions are symmetrically opened on both sides of the outer wall panel body. The snap-fit ​​protrusions connect and fix the second half-shell to the outer wall panel body by providing the snap-fit ​​grooves. A limiting top plate is provided on the top of the mounting top plate.

[0008] As a preferred embodiment of the present invention, the inner wall of the waterproof outer shell is fitted with an insulation cotton board, a connecting groove is provided on one side of the top of the waterproof outer shell, and a connecting protrusion adapted to the connecting groove is provided on the bottom of the waterproof outer shell. The waterproof outer shells are connected and fixed to each other by the connecting protrusion and the connecting groove. A T-shaped slot is provided on one outer wall of the waterproof outer shell in a linear distribution, and T-shaped strips adapted to the T-shaped slots are provided on both outer walls of the outer wall panel body. The waterproof outer shell is fixed by the T-shaped slots and the T-shaped strips.

[0009] As a preferred embodiment of the present invention, the top and bottom of the first semi-enclosed shell are symmetrically provided with connecting slots, and the top and bottom of the second semi-enclosed shell are provided with connecting plates adapted to the connecting slots. The second semi-enclosed shell is fixed by connecting plates and connecting slots.

[0010] As a preferred embodiment of the present invention, the mounting top plate is provided with snap-fit ​​circular holes on both sides, and the limiting top plate is also provided with snap-fit ​​circular holes on both sides. The inner wall of the snap-fit ​​circular holes is rotatably provided with matching fastening studs, and the limiting support plate at the bottom is provided with fastening screw grooves on both sides that are compatible with the fastening studs.

[0011] As a preferred embodiment of the present invention, the snap-fit ​​circular hole connects and fixes the limiting top plate and the mounting top plate by setting a fastening stud, the snap-fit ​​circular hole connects and fixes the mounting top plate and the limiting connecting plate by setting a snap-fit ​​circular bolt, and the snap-fit ​​circular hole connects and fixes the limiting top plate and the limiting support plate by setting a fastening stud.

[0012] As a preferred embodiment of the present invention, the limiting top plate is symmetrically provided with supporting top seats on both sides, and the supporting top seats are provided on the bottom inner walls of the first half-shell and the second half-shell.

[0013] As a preferred embodiment of the present invention, the limiting support plate is disposed on one side of the outer wall panel body, the limiting connecting plate is disposed on the other side of the outer wall panel body, and the limiting connecting plate and the limiting support plate are respectively disposed between the limiting support plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The prefabricated exterior wall panel connector for prefabricated buildings has two limiting support plates that limit the spacing between the exterior wall panel bodies. The connecting support plates are connected to the connecting clips with tenons and mortise joints, which facilitates the initial fixing of two adjacent exterior wall panel bodies. When two adjacent exterior wall panel bodies are connected, the limiting connecting plate overlaps on the limiting support plate, and a gap is maintained between the limiting connecting plate, the limiting support plate and the exterior wall panel body. The gap is closed by the first buffer support strip and the second buffer support strip. The first buffer support strip and the second buffer support strip are elastic and can leave buffer space when thermal expansion and contraction, which helps to improve the stability of the connection. 2. The prefabricated exterior wall panel connector for this prefabricated building features a top plate that uses snap-fit ​​bolts to easily connect all overlapping limiting plates and limiting brackets. The snap-fit ​​bolts on both sides of the top plate and the limiting plate facilitate the fixing of fastening studs. The fastening studs connect and fix the top plate, limiting plate, limiting connecting plate, and limiting bracket to each other. The fastening studs connect with the fastening screw grooves at the bottom, facilitating the connection of two adjacent exterior wall panel bodies. The supporting top seats on both sides of the limiting plate contact the top of the first and second semi-sealed shells, facilitating the pressing and limiting of the top plate and improving the overall connection stability. 3. The prefabricated exterior wall panel connector for this prefabricated building features a second half-shell connected via a snap-fit ​​protrusion and a snap-fit ​​groove for easy connection and fixation. A connecting slot and connecting plate facilitate the snap-fit ​​and fixation of the first and second half-shells, thereby sealing the interface between adjacent exterior wall panels for protection. An insulation board is fixed inside the waterproof outer shell, providing waterproofing and insulation protection for the exterior wall panel. The waterproof outer shell is secured to both sides of the exterior wall panel via a T-shaped slot and T-shaped strip, simultaneously tightening and limiting the snap-fit ​​between the first and second half-shells. The waterproof outer shells are fixed vertically via a connecting protrusion and a connecting groove, improving the overall installation stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a prefabricated exterior wall panel connector for prefabricated buildings according to one embodiment of the present invention. Figure 2 This is a side sectional view of a prefabricated exterior wall panel connector for prefabricated buildings according to one embodiment of the present invention. Figure 3 This is a schematic diagram of the bottom and top structures of a prefabricated exterior wall panel connector for prefabricated buildings according to one embodiment of the present invention. Figure 4 This is a schematic diagram of the connection and protection mechanism of a prefabricated exterior wall panel connector for prefabricated buildings, according to one embodiment of the present invention. Figure 5 This is a top sectional view of a prefabricated exterior wall panel connector for prefabricated buildings, according to one embodiment of the present invention. Figure 6 This is a schematic diagram of the connection mechanism of a prefabricated exterior wall panel connector for prefabricated buildings, according to one embodiment of the present invention. Figure 7 This is an exploded structural diagram of a fixing component for a prefabricated exterior wall panel connector in an embodiment of the present invention. Figure 8 This invention provides a connector for prefabricated exterior wall panels in an assembly building, as described in one embodiment. Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0016] In the picture: 1. External wall panel body; 11. Limiting support plate; 12. Connecting support plate; 13. Connecting clip; 2. Connecting protective mechanism; 21. Waterproof outer shell; 22. Thermal insulation board; 23. Connecting groove; 24. Connecting convex shell; 25. T-shaped slot; 26. T-shaped locking strip; 27. Sealing component; 271. First half-shell; 272. Second half-shell; 273. Snap-fitting convex plate; 274. Snap-fitting groove; 275. Connecting slot; 276. Connecting plate; 3. Connecting mechanism; 31. Limiting connecting plate; 32. Limiting support plate; 33. Snap-fit ​​round hole; 34. Fixing component; 341. First buffer support bar; 342. Second buffer support bar; 343. Fixing slot; 344. Mounting top plate; 345. Snap-fit ​​round bolt; 346. Limiting top plate; 347. Supporting top seat; 348. Fastening stud; 349. Fastening screw groove. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-8 This invention provides a technical solution: a prefabricated exterior wall panel connector for prefabricated buildings, comprising an exterior wall panel body 1, with symmetrically arranged limiting support plates 11 on both sides of the exterior wall panel body 1, a connecting support plate 12 on one side of the exterior wall panel body 1, and a connecting clip 13 adapted to the connecting support plate 12 on the other side of the exterior wall panel body 1. The exterior wall panel bodies 1 are connected and fixed to each other by the connecting support plate 12 and the connecting clip 13. Symmetrically arranged connecting protection mechanisms 2 are provided on the other two sides of the exterior wall panel body 1, and a connecting mechanism 3 is provided between the exterior wall panel bodies 1. The exterior wall panel bodies 1 are spaced apart by contact between the two limiting support plates 11. The connecting support plate 12 and the connecting clip 13 are mortised and tenoned together, facilitating the initial fixing of two adjacent exterior wall panel bodies 1. The connecting protection mechanism 2 provides protection for the exterior and interface of the exterior wall panel bodies 1, and the connecting mechanism 3 facilitates the installation and fixing of two adjacent exterior wall panels.

[0019] The connecting mechanism 3 includes a limiting connecting plate 31, with a limiting support plate 32 slidably disposed at the bottom of the limiting connecting plate 31. The limiting connecting plate 31 and the limiting support plate 32 are respectively provided with linearly distributed snap-fit ​​circular holes 33. The limiting connecting plate 31 and the limiting support plate 32 are connected and fixed together by a fixing component 34. The fixing component 34 includes a first buffer support bar 341 and a second buffer support bar 342. The first buffer support bar 341 is connected to the limiting connecting plate by a fixing slot 343. 31. The second buffer support bar 342 is fixedly engaged with the limiting support plate 32 via a fixed slot 343. The top of the limiting connecting plate 31 is provided with a mounting top plate 344, and the top of the mounting top plate 344 is provided with a limiting top plate 346. The bottom of the mounting top plate 344 is provided with a locking bolt 345 that matches the locking hole 33. The sides of the mounting top plate 344 are provided with locking holes 33, and the sides of the limiting top plate 346 are also provided with locking holes 345. 3. The inner wall of the snap-fit ​​circular hole 33 is rotatably provided with a matching fastening stud 348. The bottommost limiting plate 32 has fastening screw grooves 349 on both sides that match the fastening stud 348. The snap-fit ​​circular hole 33 connects and fixes the limiting top plate 346 and the mounting top plate 344 by setting the fastening stud 348. The snap-fit ​​circular hole 33 connects and fixes the mounting top plate 344 and the limiting connecting plate 31 by setting the snap-fit ​​circular bolt 345. The snap-fit ​​circular hole 33 further connects and fixes the mounting top plate 344 and the limiting connecting plate 31 by setting the snap-fit ​​circular bolt 345. Fastening studs 348 connect and fix the limiting top plate 346 and the limiting support plate 32. Supporting top seats 347 are symmetrically arranged on both sides of the limiting top plate 346. The supporting top seats 347 are located on the bottom inner walls of the first half-shell 271 and the second half-shell 272. The limiting support plate 32 is located on one side of the outer wall panel body 1, and the limiting connecting plate 31 is located on the other side of the outer wall panel body 1. The limiting connecting plate 31 and the limiting support plate 32 are respectively located between the limiting support plate 11.

[0020] When two adjacent exterior wall panel bodies 1 are connected, the limiting connecting plate 31 overlaps the limiting support plate 32, and a gap is maintained between the limiting connecting plate 31, the limiting support plate 32, and the exterior wall panel body 1. The gap is closed by the first buffer support bar 341 and the second buffer support bar 342. The first buffer support bar 341 is fixedly engaged with the vertically distributed limiting connecting plate 31 through the fixing slot 343, and the second buffer support bar 342 is fixedly engaged with the vertically distributed limiting support plate 32 through the fixing slot 343. The first buffer support bar 341 and the second buffer support bar 342 squeeze the limiting support plate 32 tightly. The first buffer support bar 341 and the second buffer support bar 342 are elastic and can leave buffer space during thermal expansion and contraction. To improve the stability of the connection, the mounting plate 344 uses snap-fit ​​bolts 345 to easily connect all overlapping limiting plates 31 and limiting support plates 32. The snap-fit ​​bolts 33 on both sides of the mounting plate 344 and the limiting plate 346 facilitate the fixing of fastening studs 348. The fastening studs 348 facilitate the connection and fixing between the mounting plate 344, the limiting plate 346, the limiting plate 31 and the limiting support plate 32. The fastening studs 348 connect with the fastening screw grooves 349 at the bottom, which facilitates the connection of two adjacent external wall panel bodies 1. The supporting top seats 347 on both sides of the limiting plate 346 contact the top of the first half-shell 271 and the second half-shell 272, which facilitates the pressing and limiting of the mounting plate 344, thus improving the overall connection stability.

[0021] The connecting protective mechanism 2 includes a waterproof outer shell 21 and a sealing component 27. The sealing component 27 is disposed between the waterproof outer shell 21. The sealing component 27 includes a first half-shell 271, a second half-shell 272 symmetrically disposed on one side of the first half-shell 271, and snap-fit ​​protrusions 273 symmetrically disposed on both sides of the second half-shell 272. Snap-fit ​​grooves 274 adapted to the snap-fit ​​protrusions 273 are symmetrically provided on both sides of the outer wall panel body 1. The snap-fit ​​protrusions 273 connect and fix the second half-shell 272 to the outer wall panel body 1 by providing snap-fit ​​grooves 274. Connecting slots 275 are symmetrically provided at the top and bottom of the first half-shell 271, and connecting slots 275 are symmetrically provided at the top and bottom of the second half-shell 272. A five-phase compatible connecting plate 276 is provided. The second half-shell 272 is fixed by the connecting plate 276 and the connecting slot 275. The inner wall of the waterproof shell 21 is fitted with an insulation cotton board 22. A connecting groove 23 is provided on one side of the top of the waterproof shell 21. A connecting protrusion 24 that matches the connecting groove 23 is provided on the bottom of the waterproof shell 21. The waterproof shells 21 are connected and fixed by the connecting protrusion 24 and the connecting groove 23. A T-shaped slot 25 with a linear distribution is provided on one side of the outer wall of the waterproof shell 21. T-shaped strips 26 that match the T-shaped slots 25 are provided on both sides of the outer wall of the outer wall panel body 1. The waterproof shell 21 is fixed by the T-shaped slots 25 and the T-shaped strips 26.

[0022] The second half-shell 272 is connected to the snap-fit ​​groove 274 via the snap-fit ​​protrusion 273, facilitating its fixation between two adjacent external wall panel bodies 1 and further connection and fixation. The first half-shell 271 and the second half-shell 272 are snapped together and fixed via the connecting slot 275 and connecting plate 276, thereby sealing the interface between the two adjacent external wall panel bodies 1 and providing protection. An insulation board 22 is fixed inside the waterproof outer shell 21, providing waterproof and thermal insulation protection for the external wall panel body 1. The waterproof outer shell 21 is snapped together with the T-shaped slot 25 and T-shaped strip 26, facilitating its fixation on both sides of the external wall panel body 1 and simultaneously tightening and limiting the snap-fit ​​between the first half-shell 271 and the second half-shell 272. The waterproof outer shells 21 are connected vertically via the connecting protrusion 24 and connecting groove 23, improving the overall stability of the installation.

[0023] Working principle: The external wall panel body 1 is spaced by two limiting support plates 11. The connecting support plate 12 is tenon-and-mortise connected to the connecting clip 13, which facilitates the initial fixation of two adjacent external wall panel bodies 1. When two adjacent external wall panel bodies 1 are connected, the limiting connecting plate 31 overlaps on the limiting support plate 32, and a gap is maintained between the limiting connecting plate 31, the limiting support plate 32 and the external wall panel body 1. The gap is closed by the first buffer support bar 341 and the second buffer support bar 342. The first buffer support bar 341 is fixed by the fixed slot 343 to the vertically distributed limiting connecting plate 31, and the second buffer support bar 342 is fixed by the fixed slot 343. The groove 343 is snapped and fixed to the vertically distributed limiting support plate 32. The first buffer support bar 341 and the second buffer support bar 342 are squeezed together. The first buffer support bar 341 and the second buffer support bar 342 are elastic and can leave buffer space during thermal expansion and contraction, which can improve the stability of the connection. The mounting plate 344 is connected to all the overlapping limiting connecting plates 31 and limiting support plates 32 by snap-fit ​​round bolts 345. The snap-fit ​​round holes 33 on both sides of the mounting plate 344 and the limiting plate 346 are used to fix the fastening studs 348. The fastening studs 348 are used to fix the mounting plate 344 and the limiting plate 346. 346. The limiting connecting plate 31 and the limiting support plate 32 are connected and fixed together. The fastening stud 348 is connected to the fastening screw groove 349 at the bottom, which facilitates the connection of two adjacent external wall panel bodies 1. The supporting top seats 347 on both sides of the limiting top plate 346 contact the top of the first half-shell 271 and the second half-shell 272, which facilitates the pressing and limiting of the installation top plate 344, and improves the stability of the overall connection. The second half-shell 272 is connected to the snap-fit ​​groove 274 through the snap-fit ​​protrusion 273, which facilitates the fixing between two adjacent external wall panel bodies 1, and facilitates further connection and fixing. It is connected to the connecting plate 276 through the connecting slot 275. The first half-shell 271 and the second half-shell 272 are easily snapped together and fixed, thereby sealing the interface between the two adjacent external wall panel bodies 1 for protection. The waterproof outer shell 21 has an insulation cotton board 22 fixed inside, which provides waterproof and thermal insulation protection for the external wall panel body 1. The waterproof outer shell 21 is easily fixed to both sides of the external wall panel body 1 by snapping together with the T-shaped slot 25 and the T-shaped strip 26. At the same time, it is easy to squeeze and limit the snapping of the first half-shell 271 and the second half-shell 272. The waterproof outer shells 21 are connected and fixed at the top and bottom by the connecting protrusion 24 and the connecting groove 23, which improves the stability of the overall installation.

[0024] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A connector for prefabricated exterior wall panels in prefabricated buildings, characterized in that: The system includes an external wall panel body (1), with limiting support plates (11) symmetrically arranged on both sides of the external wall panel body (1), a connecting support plate (12) arranged on one side of the external wall panel body (1), and a connecting clip (13) adapted to the connecting support plate (12) arranged on the other side of the external wall panel body (1). The external wall panel bodies (1) are connected and fixed to each other by the connecting support plate (12) and the connecting clip (13). A connecting protection mechanism (2) is symmetrically arranged on the other two sides of the external wall panel body (1), and a connecting mechanism (3) is arranged between the external wall panel bodies (1). The connecting mechanism (3) includes a limiting connecting plate (31), and a limiting support plate (32) is slidably provided at the bottom of the limiting connecting plate (31). The limiting connecting plate (31) and the limiting support plate (32) are respectively provided with linearly distributed snap-fit ​​round holes (33). The limiting connecting plate (31) and the limiting support plate (32) are connected and fixed by a fixing component (34). The fixing component (34) includes a first buffer support bar (341) and a second buffer support bar (342). The first buffer support bar (341) is snap-fitted and fixed to the limiting connecting plate (31) by a fixing slot (343). The second buffer support bar (342) is snap-fitted and fixed to the limiting support plate (32) by a fixing slot (343). The top of the limiting connecting plate (31) is provided with a mounting top plate (344), and the bottom of the mounting top plate (344) is provided with a snap-fit ​​round bolt (345) that matches the snap-fit ​​round hole (33).

2. The prefabricated exterior wall panel connector for prefabricated buildings according to claim 1, characterized in that: The connection protection mechanism (2) includes a waterproof shell (21) and a sealing component (27). The sealing component (27) is provided between the waterproof shell (21). The sealing component (27) includes a first half shell (271). A second half shell (272) is symmetrically provided on one side of the first half shell (271). Snap-fit ​​protrusions (273) are symmetrically provided on both sides of the second half shell (272). Snap-fit ​​grooves (274) that are adapted to the snap-fit ​​protrusions (273) are symmetrically opened on both sides of the external wall panel body (1). The snap-fit ​​protrusions (273) connect and fix the second half shell (272) to the external wall panel body (1) by setting the snap-fit ​​grooves (274). A limiting top plate (346) is provided on the top of the mounting top plate (344).

3. A prefabricated exterior wall panel connector for prefabricated buildings according to claim 2, characterized in that: The inner wall of the waterproof outer shell (21) is fitted with a heat insulation cotton board (22). A connecting groove (23) is provided on one side of the top of the waterproof outer shell (21). A connecting protrusion (24) adapted to the connecting groove (23) is provided on the bottom of the waterproof outer shell (21). The waterproof outer shells (21) are connected and fixed to each other by the connecting protrusion (24) and the connecting groove (23). A T-shaped slot (25) is provided on one side of the outer wall of the waterproof outer shell (21). T-shaped strips (26) adapted to the T-shaped slots (25) are provided on both sides of the outer wall of the external wall panel body (1). The waterproof outer shell (21) is fixed by the T-shaped slots (25) and the T-shaped strips (26).

4. A prefabricated exterior wall panel connector for prefabricated buildings according to claim 2, characterized in that: The first half-shell (271) has symmetrically provided connecting slots (275) at the top and bottom. The second half-shell (272) has connecting plates (276) at the top and bottom that are compatible with the connecting slots (275). The second half-shell (272) is fixed by connecting plates (276) and connecting slots (275).

5. A prefabricated exterior wall panel connector for prefabricated buildings according to claim 1, characterized in that: The mounting top plate (344) is provided with snap-fit ​​round holes (33) on both sides, and the limiting top plate (346) is also provided with snap-fit ​​round holes (33) on both sides. The inner wall of the snap-fit ​​round holes (33) is rotatably provided with matching fastening studs (348). The limiting support plate (32) at the bottom is provided with fastening screw grooves (349) on both sides that are compatible with the fastening studs (348).

6. A prefabricated exterior wall panel connector for prefabricated buildings according to claim 1, characterized in that: The snap-fit ​​round hole (33) connects and fixes the limiting top plate (346) and the mounting top plate (344) by setting a fastening stud (348). The snap-fit ​​round hole (33) connects and fixes the mounting top plate (344) and the limiting connecting plate (31) by setting a snap-fit ​​round bolt (345). The snap-fit ​​round hole (33) connects and fixes the limiting top plate (346) and the limiting support plate (32) by setting a fastening stud (348).

7. A prefabricated exterior wall panel connector for prefabricated buildings according to claim 1, characterized in that: The limiting top plate (346) is symmetrically provided with support top seats (347) on both sides, and the support top seats (347) are provided on the bottom inner wall of the first half shell (271) and the second half shell (272).

8. A prefabricated exterior wall panel connector for prefabricated buildings according to claim 1, characterized in that: The limiting support plate (32) is located on one side of the outer wall panel body (1), the limiting connecting plate (31) is located on the other side of the outer wall panel body (1), and the limiting connecting plate (31) and the limiting support plate (32) are respectively located between the limiting support plate (11).

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