Firm node connecting device for PC outer wall and cast-in-place structure

Abstract

Provided is a firm node connecting device for PC outer wall and cast-in-place structure, comprising a PC outer wall body and a pouring member, a plurality of the PC outer wall bodies are located on the same plane, and two adjacent PC outer wall bodies are integrally connected after waterproof clamping at the corresponding ends; the left side wall of the pouring member is poured and attached to the right side wall of the PC outer wall body, and the pouring member and the PC outer wall body are integrally connected through a pre-buried connecting device. The connecting structure between the PC outer wall bodies is optimized, and the pouring member and the PC outer wall body are integrally connected through the pre-buried connecting device, so as to ensure the firmness of the connection between the pouring member and the PC outer wall body when the pouring member is poured on the side edge of the PC outer wall body, further improve the safety between the pouring member and the PC outer wall body after construction, avoid the falling of the PC outer wall body, and improve the waterproof effect of the PC outer wall body in use through the waterproof and firm connecting structure between the adjacent PC outer wall bodies.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically relating to a robust joint connection device for PC exterior walls and cast-in-place structures. Background Technology

[0002] To expedite construction, precast concrete (PC) wall panels are often used in conjunction with precast concrete walls. Since PC wall panels are prefabricated, connection points are needed to secure them to the cast-in-place structure. Traditionally, this connection method uses embedded parts, connecting plates, and bolts. However, this method is not very secure, and the connecting plates can easily detach under external forces, leading to the PC wall panel falling off and compromising the overall strength and safety of the connection. Therefore, it is necessary to improve the existing connection structure to enhance the stability of the connection between the PC wall panel and the cast-in-place structure. Summary of the Invention

[0003] The technical problem solved by this invention is to provide a robust node connection device for PC exterior walls and cast-in-place structures. By optimizing the connection structure between the main body of the PC exterior wall and using a pre-embedded connection device to firmly connect the cast-in-place component and the main body of the PC exterior wall as a whole, the device ensures the robustness of the connection between the cast-in-place component and the main body of the PC exterior wall when the component is cast on the side of the main body of the PC exterior wall. This further improves the safety of the cast-in-place component and the main body of the PC exterior wall after construction, prevents the main body of the PC exterior wall from falling off, and the waterproof connection structure between adjacent main bodies of the PC exterior wall can improve the waterproof effect of the main body of the PC exterior wall during use.

[0004] The technical solution adopted in this invention is a robust node connection device for PC exterior walls and cast-in-place structures, comprising a PC exterior wall body and a casting component. Multiple PC exterior wall bodies are located on the same plane, and adjacent PC exterior wall bodies are fixedly connected as a whole after their corresponding ends are waterproofed and snapped together. The left side wall of the casting component is cast and fitted to the right side wall of the PC exterior wall body, and the casting component and the PC exterior wall body are fixedly connected as a whole through a pre-embedded connection device.

[0005] The pre-embedded connection device includes a pre-embedded vertical plate pre-installed inside the main body of the PC exterior wall, a cast-in-place plate cast inside the cast-in-place component, and a connecting rod that fixes the pre-embedded vertical plate and the cast-in-place plate together to form an H-shaped pre-embedded connection device. The left side wall of the pre-embedded vertical plate and the right side wall of the cast-in-place plate are respectively provided with a number of first friction ridges and second friction ridges, and a number of transverse anti-slip strips provided on the left side wall of the pre-embedded vertical plate and the right side wall of the cast-in-place plate are respectively located in the middle of the number of first friction ridges and second friction ridges.

[0006] Furthermore, the left side wall of the cast-in-place plate is provided with multiple reinforcing crossbars pre-embedded in the cast-in-place component.

[0007] Furthermore, a bonding plate is fixed to the left side of the upper end face of the PC exterior wall body, and the left side wall of the bonding plate is on the same plane as the left side wall of the PC exterior wall body. A protrusion is fixed to the right side of the upper end face of the PC exterior wall body, and the right side wall of the protrusion is on the same horizontal plane as the right side wall of the PC exterior wall body. A slot is formed on the left side wall of the lower end face of the PC exterior wall body to fit the bonding plate of the adjacent upper end of the PC exterior wall body. A groove is formed on the right side of the lower end face of the PC exterior wall body. After the top surface of the groove is waterproofed, it forms a splicing slot with the connecting plate fixed to the right side wall of the lower end of the PC exterior wall body for fitting the protrusion of the adjacent upper end of the PC exterior wall body. The lower end of the connecting plate is fixedly connected to the protrusion of the adjacent upper end of the PC exterior wall body.

[0008] Furthermore, a waterproof board with waterproof adhesive coated on both the upper and lower ends is fixed to the middle of the left side wall of the connecting plate. The upper end of the waterproof board contacts the top surface of the splicing slot, while the lower end of the waterproof board contacts the top surface of the protrusion on the upper end of the adjacent PC exterior wall body below. The upper and lower ends of the connecting plate are respectively fixedly connected to the protrusion on the PC exterior wall body and the adjacent PC exterior wall body below by bolts.

[0009] Advantages of this invention compared to existing technologies:

[0010] 1. This technical solution uses a pre-embedded connection device to fix the cast-in-place component and the PC exterior wall body into one unit, ensuring the firmness of the connection between the cast-in-place component and the PC exterior wall body when the cast-in-place component is cast on the side of the PC exterior wall body, improving the safety of the cast-in-place component and the PC exterior wall body after construction, avoiding the problem of the PC exterior wall body falling off after being subjected to external force and causing danger, and improving construction safety.

[0011] 2. This technical solution optimizes the connection structure between the main PC exterior wall components, so that after the main PC exterior wall components are spliced, the waterproof board on the inner side of the connecting plate is embedded in the gap at the splice of the main PC exterior wall components, and the connecting plate is fixed to the corresponding position by bolts, thereby improving the splicing firmness between the main PC exterior wall components, improving the waterproof effect of the main PC exterior wall components during use, ensuring the relative position consistency of the main PC exterior wall components, and improving construction efficiency.

[0012] 3. In this technical solution, the cooperation between the bonding plate and the slot is used to lock and limit the PC exterior wall body when it is connected to the outside of the cast-in-place component, thereby improving the fit between the PC exterior wall bodies and further enhancing the waterproof effect after the PC exterior wall body is spliced.

[0013] 4. In this technical solution, by setting the first friction ridge, the second friction ridge, and the transverse anti-slip strip, the firmness of the connection between the embedded vertical plate and the cast-in-place plate and the PC exterior wall body and the cast-in-place components is improved.

[0014] 5. This technical solution has a simple structure, novel design, convenient and quick installation, high robustness and safety, and has high value for promotion and application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a perspective view of the connection structure between the PC exterior wall body and the pre-embedded connection device of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the pre-embedded connection device of the present invention;

[0018] Figure 4 This is a schematic diagram of the connection structure between the waterproof membrane and the connecting plate of the present invention. Detailed Implementation

[0019] The following will be based on embodiments of the present invention. Figure 1-4 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] A robust joint connection device for PC exterior walls and cast-in-place structures includes a PC exterior wall body 1 and a cast-in-place component 2. Multiple PC exterior wall bodies 1 are located on the same plane, and adjacent PC exterior wall bodies 1 are fixedly connected as a single unit after waterproofing interlocking at their corresponding ends. The left side wall of the cast-in-place component 2 is cast and bonded to the right side wall of the PC exterior wall body 1, and the cast-in-place component 2 and the PC exterior wall body 1 are fixedly connected as a single unit via a pre-embedded connection device. In the above structure, several sets of pre-embedded vertical plates 8 and cast-in-place built-in plates 10 are provided, and these sets are evenly distributed between the PC exterior wall body 1 and the cast-in-place component 2. These sets of pre-embedded vertical plates 8 and cast-in-place built-in plates 10 reinforce the connection at different bonding positions between the PC exterior wall body 1 and the cast-in-place component 2, thereby improving the connection between the PC exterior wall body 1 and the cast-in-place structure. To ensure the structural integrity of the PC exterior wall body 1 and prevent it from falling off under external force, thus avoiding potential dangers, a pre-embedded vertical plate 8 is installed inside the PC exterior wall body 1. The right side of the pre-embedded vertical plate 8 is connected to the cast-in-place plate 10 of the casting component 2 via a connecting rod 9. The cast-in-place plate 10 is fixed inside the casting component 2 as the concrete is poured, and the pre-embedded vertical plate 8 is pre-installed inside the PC exterior wall body 1. The pre-embedded vertical plate 8 and the cast-in-place plate 10 are connected and fixed via the connecting rod 9. This ensures the structural integrity of the connection between the cast-in-place structure and the PC exterior wall body 1 when the cast-in-place structure is installed on the side of the PC exterior wall body 1, thereby further improving the safety of the cast-in-place structure and the PC exterior wall body 1 after construction.

[0022] The specific structure of the pre-embedded connection device is as follows: The pre-embedded connection device includes a pre-embedded vertical plate 8 pre-installed inside the PC exterior wall body 1, a cast-in-place plate 10 cast inside the cast-in-place component 2, and a connecting rod 9 that fixes the pre-embedded vertical plate 8 and the cast-in-place plate 10 together to form an H-shaped pre-embedded connection device. This structure is used when the PC exterior wall body 1 is poured on one side, the cast-in-place component 2 covers the cast-in-place plate 10 as the concrete is poured. Through the connection of the connecting rod 9, the connection between the cast-in-place plate 10 and the cast-in-place component 2 is improved by the reinforcement crossbar 15 in conjunction with the concrete poured in the cast-in-place structure, thereby improving the firmness of the connection between the cast-in-place component 2 and the PC exterior wall body 1. The left side wall of the pre-embedded vertical plate 8 and the right side wall of the cast-in-place plate 10 are respectively provided with a plurality of first friction protrusions 11 and second friction protrusions 12, and a plurality of transverse anti-slip strips 13 provided on the left side wall of the pre-embedded vertical plate 8 and the right side wall of the cast-in-place plate 10 are respectively located in the middle of the plurality of first friction protrusions 11 and second friction protrusions 12; specifically, the left side wall of the cast-in-place plate 10 is provided with a plurality of reinforcing crossbars 15 pre-embedded in the cast-in-place component 2; in the above structure, by setting the first friction protrusions 11 and second friction protrusions 12 and the transverse anti-slip strips 13, the firmness of the connection between the pre-embedded vertical plate 8 and the cast-in-place plate 10 and the PC exterior wall body 1 and the cast-in-place component 2 is improved.

[0023] The waterproof fastening structure of adjacent PC exterior wall bodies 1 is as follows: A bonding plate 14 is fixed to the left side of the upper surface of the PC exterior wall body 1, and the left side wall of the bonding plate 14 is on the same plane as the left side wall of the PC exterior wall body 1; a protrusion 5 is fixed to the right side of the upper surface of the PC exterior wall body 1, and the right side wall of the protrusion 5 is on the same horizontal plane as the right side wall of the PC exterior wall body 1; a fitting plate 14 adapted to the upper surface of the adjacent PC exterior wall body 1 is formed on the left side wall of the lower surface of the PC exterior wall body 1. The slot 3 has a groove on the right side of the lower end face of the PC exterior wall body 1. After the top surface of the groove is waterproofed, it forms a splicing slot 4 with the connecting plate 6 fixed to the right side wall of the lower end of the PC exterior wall body 1. The lower end of the connecting plate 6 is fixedly connected to the protrusion 5 at the upper end of the adjacent PC exterior wall body 1. Specifically, a waterproof plate 7 with waterproof adhesive coated on both the upper and lower ends is fixed to the middle of the left side wall of the connecting plate 6. The upper end face contacts the top surface of the splicing slot 4, while the lower end face of the waterproof plate 7 contacts the top surface of the protrusion 5 on the upper end of the adjacent PC exterior wall body 1 below. The upper and lower ends of the connecting plate 6 are respectively fixed to the protrusion 5 on the PC exterior wall body 1 and the adjacent PC exterior wall body 1 below by bolts. In the above structure, by optimizing the connection structure between the PC exterior wall bodies 1, after the PC exterior wall bodies 1 are spliced, the waterproof plate 7 on the inner side of the connecting plate 6 is embedded in the gap at the splice of the PC exterior wall bodies 1, and the connecting plate 6 is fixed to the corresponding position by bolts, thereby improving the firmness of the splice between the PC exterior wall bodies 1, improving the waterproof effect of the PC exterior wall bodies 1 during use, ensuring the relative position consistency of the PC exterior wall bodies 1, and improving construction efficiency. The cooperation between the fitting plate 14 and the slot 3 is used to limit the PC exterior wall body 1 when it is connected to the outside of the casting part 2, improve the fit of the splice between the PC exterior wall bodies 1, and further improve the waterproof effect after the PC exterior wall bodies 1 are spliced.

[0024] This technical solution has a simple structure, novel design, convenient and quick installation, high robustness and safety, and has high value for promotion and application.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A robust joint connection device for PC exterior walls and cast-in-place structures, characterized in that: It includes a PC exterior wall body (1) and a casting component (2). Multiple PC exterior wall bodies (1) are located on the same plane, and two adjacent PC exterior wall bodies (1) are fixed together after waterproofing at their corresponding ends; the left side wall of the casting component (2) is cast and fitted to the right side wall of the PC exterior wall body (1), and the casting component (2) and the PC exterior wall body (1) are fixed together by a pre-embedded connection device; The pre-embedded connection device includes a pre-embedded vertical plate (8) pre-embedded inside the PC outer wall body (1), a cast-in-place plate (10) cast inside the cast-in-place component (2), and a connecting rod (9) that fixes the pre-embedded vertical plate (8) and the cast-in-place plate (10) together to form an H-shaped pre-embedded connection device. The left side wall of the pre-embedded vertical plate (8) and the right side wall of the cast-in-place plate (10) are respectively provided with a number of first friction ridges (11) and second friction ridges (12), and a number of transverse anti-slip strips (13) provided on the left side wall of the pre-embedded vertical plate (8) and the right side wall of the cast-in-place plate (10) are respectively located in the middle of a number of first friction ridges (11) and second friction ridges (12). A bonding plate (14) is fixed on the left side of the upper end face of the PC exterior wall body (1), and the left side wall of the bonding plate (14) is on the same plane as the left side wall of the PC exterior wall body (1). A protrusion (5) is fixed on the right side of the upper end face of the PC exterior wall body (1), and the right side wall of the protrusion (5) is on the same horizontal plane as the right side wall of the PC exterior wall body (1). A slot (3) adapted to the bonding plate (14) at the upper end of the adjacent PC exterior wall body (1) is made on the left side wall of the lower end face of the PC exterior wall body (1). A groove is made on the right side of the lower end face of the PC exterior wall body (1), and after the top surface of the groove is waterproofed, it forms a splicing slot (4) adapted to the protrusion (5) at the upper end of the adjacent PC exterior wall body (1) with the connecting plate (6) fixed on the right side wall of the lower end of the PC exterior wall body (1). The lower end of the connecting plate (6) is fixedly connected to the protrusion (5) at the upper end of the adjacent PC exterior wall body (1).

2. The robust joint connection device for PC exterior walls and cast-in-place structures according to claim 1, characterized in that: Multiple reinforcing crossbars (15) are pre-embedded in the casting component (2) on the left side wall of the cast-in-place plate (10).

3. The robust joint connection device for PC exterior walls and cast-in-place structures according to claim 1, characterized in that: The connecting plate (6) has a waterproof plate (7) with waterproof adhesive coated on both the upper and lower ends fixed in the middle of the left side wall. The upper end of the waterproof plate (7) is in contact with the top surface of the splicing slot (4), while the lower end of the waterproof plate (7) is in contact with the top surface of the protrusion (5) on the upper end of the adjacent PC exterior wall body (1). The upper and lower ends of the connecting plate (6) are respectively fixed to the protrusion (5) on the PC exterior wall body (1) and the adjacent PC exterior wall body (1) below by bolts.

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