Prefabricated wall panel assembling external corner assembly and prefabricated wall face with prefabricated wall panel assembling external corner assembly

Abstract

The utility model relates to the technical field of assembly type buildings, and discloses a prefabricated wallboard assembly external corner assembly and a prefabricated wall face with the prefabricated wallboard assembly external corner assembly. The external corner assembly for assembling the prefabricated wall panel comprises an external corner internal part which comprises a pair of inner side connecting plates and a pair of auxiliary connecting plates, the side edges, in the length direction, of the pair of inner side connecting plates are fixedly connected, and the included angle between the pair of inner side connecting plates is suitable for being matched with the angle of an external corner at the position to be installed; the pair of auxiliary connecting plates are fixedly connected to the sides, away from the other inner side connecting plate, of the inner side connecting plates correspondingly. The two sides, in the length direction, of the external corner outer piece are connected with the different auxiliary connecting plates in a matched mode respectively, and the external corner outer piece and the inner side connecting plate are arranged on the two opposite sides of the auxiliary connecting plates respectively. Before site construction, the prefabricated wallboard assembly external corner assembly is prefabricated and formed in a factory and is assembled, it can be guaranteed that the external corner inner part on the inner side of the prefabricated wallboard assembly external corner assembly is completely attached to the position to be installed, and the external corner outer part on the outer side is completely flush with the wallboard.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically to a prefabricated wall panel assembly corner component and a prefabricated wall surface having the same. Background Technology

[0002] Prefabricated wall panels are a type of wall system composed of prefabricated components. These components are manufactured in a factory and then assembled and connected on-site to form the walls of a building. In building structures, an external corner typically refers to a protruding wall corner, such as the angle formed by two walls at a corridor turn, the four protruding corners of a building's exterior, or the angle between door / window openings and the wall surface. The installation of many external corners is involved in the overall construction of prefabricated wall panels.

[0003] Because the wall panels have a certain thickness, and the connection structure between the wall panels and the wall also has a certain thickness, but due to the bent structure at the external corners, they cannot be directly connected to the wall using the same connectors as the wall panels. In existing technologies, for aesthetic purposes, the external corners of prefabricated walls are made flush with the outer surface of the corner piece and the wall panels on both sides. However, the distance between the inner side of the corner piece and the wall differs from the distance between the wall panel and the wall, preventing the inner side of the corner piece from being flush with the wall panel. This necessitates an overall airtight seal in the space inside the corner. This makes the construction process for the external corners of prefabricated walls cumbersome, time-consuming, and affects the overall assembly efficiency of the prefabricated wall system. Utility Model Content

[0004] In view of this, the present invention provides a prefabricated wall panel assembly corner component and a prefabricated wall surface having the same, so as to solve the problem that the construction steps of the corner component of the prefabricated wall surface in the prior art are complicated and the construction period is long, which affects the overall construction efficiency of the wall surface.

[0005] In a first aspect, this utility model provides a prefabricated wall panel assembly corner component, comprising:

[0006] The external corner fitting includes a pair of inner connecting plates and a pair of auxiliary connecting plates. The pair of inner connecting plates are fixedly connected along the sides of the length direction, and the included angle between the pair of inner connecting plates is adapted to match the external corner angle at the installation position. The pair of auxiliary connecting plates are respectively fixedly connected to the side of the inner connecting plate away from the other inner connecting plate.

[0007] The outer corner piece has different auxiliary connecting plates on both sides along its length. The outer corner piece and the inner connecting plate are respectively located on opposite sides of the auxiliary connecting plate.

[0008] Before on-site construction, the prefabricated wall panel corner assembly is prefabricated in the factory. By pre-measuring the dimensions and angles of the external corners at the construction site, internal corner components with inner connecting plates that match the angle of the external corner at the installation location are prefabricated. The external corner components and internal corner components are then assembled in the factory. During on-site construction, by installing the prefabricated wall panel corner assembly as a whole at the external corner, it is ensured that the internal corner component on the inner side of the assembly completely fits the structure at the installation location, and the external corner component is completely flush with the wall panel. Simultaneously, the auxiliary connecting plate and the external corner component work together to form a stable support between the internal and external corner components. The prefabricated wall panel assembly corner component provided by this utility model can be used in prefabricated buildings. Both the prefabricated wall panel assembly corner component and the wall panel can be prefabricated structures and can be used as independent components. After the corner component is installed with the wall panel, it can ensure that the inner and outer sides of the prefabricated wall panel and the corner component maintain continuity and can be well sealed. After the prefabricated wall construction is completed, only the splice joint needs to be sealed. The outer splice joint of the wall panel and the corner component is caulking, and the inner splice joint is airtight. This can greatly simplify the construction process at the corner of the prefabricated wall panel, shorten the construction cycle of the overall prefabricated wall construction, and improve construction efficiency.

[0009] In one optional embodiment, the corner inner component further includes a sealing plate, which is installed at the end of the corner inner component. The inner connecting plate and the auxiliary connecting plate both abut against the sealing plate. The sealing plate completely seals the space between the corner outer component and the inner connecting plate and the auxiliary connecting plate. By setting the sealing plate, the space between the corner inner component and the corner outer component is sealed at the end, so as to completely seal the gap between the corner inner component and the corner outer component, which facilitates the airtight treatment of the inner space of the corner outer component.

[0010] In one optional embodiment, the sealing plate has an extension that extends beyond the inner connecting plate to the side opposite to the corner component. A connecting portion is adapted to be provided on the extension. The sealing plate with the extension is typically located on the top surface of the corner assembly. The extension can be connected to an external structure via the connecting portion, allowing the entire corner assembly to be connected to the building corner or external fixed structure via the connecting portion, thereby improving the stability of the corner assembly during installation at the desired location.

[0011] In one optional embodiment, the sealing plate has a bent portion extending along the length of the inner connecting plate, located on the side of the sealing plate closest to the outer corner component. The sealing plate with the bent portion is typically installed at the bottom of the outer corner assembly. By utilizing the fit between the bent portion of the sealing plate and the outer corner component, the tightness of the seal between the bottom of the outer corner component and the sealing plate can be increased. Simultaneously, it ensures that when the bottom of the inner corner component needs to extend below the outer corner component, no gap will appear at the bottom of the outer corner component. The bent portion seals the space between the bottom of the outer corner component and the sealing plate, ensuring an airtight seal between the outer and inner corner components.

[0012] In one optional embodiment, along the length direction, the end of the inner corner component extends beyond the outer corner component, so that one end of the inner corner component forms a splicing protrusion; and / or, along the length direction, one end of the outer corner component extends beyond the inner corner component, so that the end of the inner corner component forms a splicing groove. The splicing groove at the end of the preceding corner component and the splicing protrusion at the end of the following corner component engage to splice, allowing multiple corner components to be assembled along the length direction, enabling the corner components to form an integral corner structure of different heights and lengths.

[0013] In one alternative embodiment, a first fitting is provided on the side edge of the auxiliary connecting plate away from the inner connecting plate, and a second fitting is provided on both sides of the outer corner piece, with the first fitting and the second fitting being fixedly connected in cooperation.

[0014] In one optional embodiment, an inner folded edge is provided at the edge of the outer corner component, and the inner folded edge extends toward the inner corner component to increase the thickness of the outer corner component, so as to facilitate the splicing and installation of the outer corner component with the inner corner component, sealing plate and other structures.

[0015] In one alternative implementation, the edge of the side where the inner connecting plate connects to the auxiliary connecting plate is perpendicular to the auxiliary connecting plate.

[0016] In one alternative implementation, the external corner component is a bent board, an arc-shaped board, or a flat board. By setting the external corner component to different shapes, the external corner of the final precast wall can present different shapes such as right angle, rounded corner, and chamfer, which can match the architectural decoration style and enhance the aesthetics of the external corner component.

[0017] Secondly, this utility model also provides a prefabricated wall surface having the prefabricated wall panel assembly corner component described in this utility model. Since the prefabricated wall surface includes the prefabricated wall panel assembly corner component and has the same effect as the prefabricated wall panel assembly corner component, it will not be described further here. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the prefabricated wall panel assembly with external corner components provided for an embodiment of this utility model.

[0020] Figure 2 for Figure 1 The diagram shows a structural schematic of the prefabricated wall panel assembly with external corner components from another perspective.

[0021] Figure 3 A schematic diagram of another prefabricated wall panel assembly for external corner components provided as an embodiment of this utility model.

[0022] Figure 4 for Figure 3 The diagram shows a structural schematic of the prefabricated wall panel assembly with external corner components from another perspective.

[0023] Figure 5 A schematic diagram of the internal component of the external corner provided in an embodiment of this utility model.

[0024] Figure 6 This is a schematic diagram of the sealing plate provided in an embodiment of the present invention.

[0025] Figure 7 This is a structural schematic diagram of the body portion of the external corner inner component provided in an embodiment of the present utility model.

[0026] Figure 8 A perspective view of the main body of the external corner fitting provided in an embodiment of this utility model.

[0027] Figure 9 A schematic diagram of another sealing plate provided for an embodiment of this utility model.

[0028] Figure 10 A schematic diagram of the external corner fitting provided for an embodiment of this utility model.

[0029] Figure 11 This is a schematic diagram of the structure of the outer corner component body provided in an embodiment of the present utility model.

[0030] Figure 12 A perspective view of the external corner bracket provided for an embodiment of this utility model.

[0031] Explanation of reference numerals in the attached drawings: 1. External corner inner part; 101. Inner connecting plate; 102. Auxiliary connecting plate; 103. First folded edge; 104. Mating through hole; 105. Sealing plate; 106. Outer extension; 107. Bending part; 108. Connecting through hole; 109. Connecting hole; 2. External corner outer part; 201. External corner plate; 202. Second folded edge; 203. Fixing through hole; 204. External corner top part. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The following is combined with Figures 1 to 12 The following describes embodiments of the present invention.

[0034] According to an embodiment of the present invention, a prefabricated wall panel assembly corner component is provided, including a corner inner component 1 and a corner outer component 2 that are installed together.

[0035] The main body of the inner corner component 1 includes a pair of inner connecting plates 101 and a pair of auxiliary connecting plates 102. The pair of inner connecting plates 101 are fixedly connected along their length, and the included angle between the pair of inner connecting plates 101 is adapted to match the angle of the outer corner at the installation position. The pair of auxiliary connecting plates 102 are respectively fixedly connected to the side of the inner connecting plate 101 away from the other inner connecting plate 101. The outer corner component 2 is connected to different auxiliary connecting plates 102 on both sides along its length. The outer corner component 2 and the inner connecting plates 101 are respectively located on opposite sides of the auxiliary connecting plates 102.

[0036] Before on-site construction, the prefabricated wall panel corner assembly is prefabricated in the factory. By pre-measuring the dimensions and angles of the corners at the construction site, a corner inner component 1 is prefabricated, with the included angle of the inner connecting plate 101 matching the angle of the corner at the installation location. The corner outer component 2 and the corner inner component 1 are then assembled in the factory. During on-site construction, the corner inner component 1 is installed with the side facing away from the corner outer component 2 at the corner of the prefabricated wall panel corner assembly. The prefabricated wall panel is then installed on both sides of the wall. This ensures that the corner inner component 1 on the inside of the prefabricated wall panel corner assembly fits perfectly with the structure at the installation location, and the corner outer component 2 is flush with the wall panel. At the same time, the auxiliary connecting plate 102 and the corner outer component 2 are connected to form a stable support between the corner inner component 1 and the corner outer component 2. The prefabricated wall panel assembly corner component provided by this utility model can be used in prefabricated buildings. Both the prefabricated wall panel assembly corner component and the wall panel can be prefabricated structures and can be used as independent components. After the corner component is installed with the wall panel, it can ensure that the inner and outer sides of the prefabricated wall panel and the corner component maintain continuity and can be well sealed. After the prefabricated wall construction is completed, only the splice joint needs to be sealed. The outer splice joint of the wall panel and the corner component is caulking, and the inner splice joint is airtight. This can greatly simplify the construction process at the corner of the prefabricated wall panel, shorten the construction cycle of the overall prefabricated wall construction, and improve construction efficiency.

[0037] It should be noted that the pair of inner connecting plates 101 can form shapes of any angle, such as right angle, acute angle, or obtuse angle. The pair of inner connecting plates 101 can both be flat plates or both be curved plates, or one can be a flat plate and the other a curved plate, so that the inner side of the assembled corner component can form different shapes, ensuring that the inner side of the corner component can fit completely with the structure of the installation position, and ensuring that the inner side of the corner component maintains the continuity of shape and structure with the wall panels on both sides.

[0038] In addition, the external corner piece 2 can also be a bent board, an arc-shaped board, or a flat board. By setting the external corner piece 2 to different shapes, the external corner of the final precast wall can present different shapes such as right angle, rounded corner, and chamfer, which can match the architectural decoration style and enhance the aesthetics of the external corner component.

[0039] In this embodiment, both the body portion of the outer corner component 2 and the body portion of the inner corner component 1 are made of bent sheet metal, such as... Figure 5 As shown, in the inner corner component 1, a pair of inner connections are perpendicular to each other. (As...) Figure 7 and Figure 8As shown, in the external corner inner component 1, the edge of the side where the inner connecting plate 101 connects to the auxiliary connecting plate 102 is perpendicular to the auxiliary connecting plate 102. That is, the main body of the external corner inner component 1 is a plate component consisting of four plates connected vertically in sequence: one auxiliary connecting plate 102, one inner connecting plate 101, another inner connecting plate 101, and another auxiliary connecting plate 102. Figure 10 and Figure 11 As shown, the main body of the external corner piece 2 includes a pair of mutually perpendicular external corner plates 201 to form the external external corner structure of the prefabricated wall.

[0040] In one embodiment, along the length direction, the end of the inner corner component 1 extends beyond the outer corner component 2, forming a splicing protrusion at the end of the inner corner component 1. In another embodiment, along the length direction, the end of the outer corner component 2 extends beyond the inner corner component 1, forming a splicing groove at the end of the inner corner component 1. By sequentially assembling two types of corner components—one with a splicing protrusion and the other with a splicing groove—with the splicing groove at the end of the previous corner component engaging with the splicing protrusion at the end of the next corner component, multiple corner components can be assembled along the length direction, allowing the corner components to form an overall corner structure of different heights and lengths.

[0041] Specifically, the external corner assembly consists of an inner external corner component 1 and an outer external corner component 2. The inner external corner component 1 and the outer external corner component 2 are assembled together. Depending on the different installation positions of the assembled external corner, the external corner assembly exists in two forms. One type of external corner assembly, such as... Figure 1 and Figure 2 As shown, the bottom surface of the outer corner component 2 is flush with the bottom surface of the inner corner component 1, and the top surface of the outer corner component 2 is flush with the top surface of the inner corner component 1. A corner top component 204 is also provided in the outer corner component 2, and the corner top component 204 is fixedly installed on the top surface of the main body of the outer corner component 2, so that the top surface of the corner assembly forms a splicing groove. Figure 12 As shown, in this embodiment, the corner top piece 204 is L-shaped, and in the vertical direction, the corner top piece 204 is flush with the main body of the corner outer piece 2, which is composed of a pair of mutually perpendicular corner plates 201. In another corner assembly, such as... Figure 3 and Figure 4As shown, the top surface of the outer corner component 2 is flush with the top surface of the inner corner component 1, and there is a height difference between the bottom surface of the outer corner component 2 and the bottom surface of the inner corner component 1, so that the inner corner component 1 extends to the outside of the outer corner component 2, forming a splicing protrusion at the bottom of the corner assembly. Through holes are provided on the sealing plates 105 at both ends of the inner corner component 1. Since the outer corner component 2 is composed of two mutually perpendicular corner plates 201, and the inner corner component 1 is composed of two mutually perpendicular inner connecting plates 101 and two auxiliary connecting plates 102 respectively perpendicularly arranged on both sides of the inner connecting plates 101, the gap section after the inner corner component 1 and the outer corner component 2 are spliced ​​is L-shaped. Therefore, the sealing plates 105 are also correspondingly L-shaped. Connecting through holes 108 are provided on both L-shaped plates of the sealing plates 105 for use with the pre-embedded bolts in the foundation concrete or the fixing bolts of the steel beam for installation and positioning of the corner assembly. An extension 106 is provided on the sealing plate 105 at the top of the corner inner component 1. The extension 106 has a connecting hole 109, which is used to connect with the mounting plate on the corner beam / column by bolts. During longitudinal assembly of the corner components, the corner component with the splicing groove at the top is installed below the corner component with the splicing protrusion at the bottom. After the lower corner component is installed, connecting bolts are installed in the connecting through hole 108 on the sealing plate 105 at its top. When installing the upper corner component, the connecting through hole 108 on the sealing plate 105 at its bottom is aligned with the connecting bolt for installation and positioning. The interior of the corner component can meet different wall requirements and can be filled with appropriate thermal and sound insulation materials, such as rock wool, thermal insulation cotton, and sound-absorbing cotton.

[0042] In one embodiment, the inner corner component 1 further includes a sealing plate 105, which is installed at the end of the inner corner component 1. The inner connecting plate 101 and the auxiliary connecting plate 102 are both in contact with the sealing plate 105. The sealing plate 105 completely seals the space between the outer corner component 2 and the inner connecting plate 101 and the auxiliary connecting plate 102. By setting the sealing plate 105, the space between the inner corner component 1 and the outer corner component 2 is sealed at the end, so as to completely seal the gap between the inner corner component 1 and the outer corner component 2, which facilitates the airtight treatment of the inner space of the outer corner component 2.

[0043] Specifically, both ends of the inner corner component 1 along the length direction are provided with sealing plates 105. The shape of the sealing plates 105 at both ends of the inner corner component 1 can be the same as the cross-sectional shape of the gap between the inner corner component 1 and the outer corner component 2, or they can be different shapes respectively.

[0044] In this embodiment, as Figure 6As shown, the sealing plate 105 located at the top of the inner corner component 1 is used to cooperate with the external fixing structure to install and position the entire corner assembly. An extension 106 is provided on the sealing plate 105, extending to the side of the inner connecting plate 101 opposite to the outer corner component 2. A connecting portion is adapted to be provided on the extension 106. The sealing plate 105 with the extension 106 is typically located on the top surface of the corner assembly. The extension 106 can be connected to the external structure through the connecting portion, allowing the entire corner assembly to be connected to the building corner or external fixing structure through the connecting portion, thereby improving the stability of the corner assembly during fixed installation at the desired location.

[0045] In this embodiment, as Figure 9 As shown, a sealing plate 105 located at the bottom of the inner corner component 1 is used to cooperate with the outer corner component 2 to seal the space at the bottom of the inner corner component 1 and the outer corner component 2. The sealing plate 105 is provided with a bent portion 107, which extends towards the length direction of the inner connecting plate 101. The bent portion 107 is located on the side of the sealing plate 105 closest to the outer corner component 2. The sealing plate 105 with the bent portion 107 is usually installed at the bottom of the corner assembly. By utilizing the cooperation between the bent portion 107 of the sealing plate 105 and the outer corner component 2, the tightness of the seal between the bottom of the outer corner component 2 and the sealing plate 105 can be increased. At the same time, when the bottom of the inner corner component 1 needs to extend below the outer corner component 2, there will be no gap at the bottom of the outer corner component 2. The bending part 107 is used to seal the space between the bottom of the outer corner component 2 and the sealing plate 105, ensuring the airtightness of the space between the outer corner component 2 and the inner corner component 1.

[0046] In one embodiment, a first fitting is provided on the edge of the auxiliary connecting plate 102 away from the inner connecting plate 101, and second fittings are provided on both sides of the outer corner piece 2. The first fitting and the second fitting are fixedly connected together. Specifically, the first fitting is a first folded edge 103 that is perpendicular to the auxiliary connecting plate 102, and the second fitting is a second folded edge 202 that is provided on the edge of the outer corner piece 201 along its length and perpendicular to the outer corner piece 201. During assembly, the first folded edge 103 and the second folded edge 202 are aligned parallel to each other and then fastened together with bolts.

[0047] In this embodiment, a corner top piece 204 is fitted onto the top of the outer corner piece 2. The lower surface of the corner top piece 204 and the upper surface of the outer corner piece 2 are welded together for fixation. The outer surface of the L-shaped corner top piece 204 is flush with the outer surface of the outer corner piece 2. Fixing through holes 203 are provided on the two second folded edges 202 on both sides of the outer corner piece 2. These fixing through holes 203 are aligned with the mating through holes 104 on the two first folded edges 103 on both sides of the inner corner piece 1 and are fixed by riveting. Nuts are welded to the back of the sealing plate 105 installed on the top surface of the inner corner piece 1 at positions corresponding to the connecting through holes 108. The connecting through holes 108 can be used for screw installation and can also be used to cooperate with external hoisting equipment. Connecting holes 109 are provided on the outer extension 106 of the sealing plate 105 on the top surface, which are aligned with the mating holes on the mating plates on the beams and columns and then fixed with bolts. The top surface of the inner corner component 1 contacts and abuts against the back of the top sealing plate 105, and the bottom surface of the inner corner component 1 contacts and abuts against the front of the bottom sealing plate 105. Two auxiliary connecting plates 102 are flush with the two sides of the top connecting plate. Each of the two first folded edges 103 on both sides of the inner corner component 1 has a mating through hole 104, which is used to align with the fixing through hole 203 on the second folded edge 202 of the outer corner component 2 and then be fixed together using rivets. Depending on the wall thickness of different projects, the width of the two auxiliary connecting plates 102 and the corresponding sealing plates 105 at both ends of the inner corner component 1 can be adjusted to ensure that the overall thickness is consistent with the wall thickness, guaranteeing that the wall and the inner and outer surfaces of the inner corner component are on the same plane, facilitating waterproofing, airtightness, and finishing.

[0048] In one embodiment, in order to increase the ease of splicing the outer corner piece 2 and the inner corner piece 1, an inner folded edge is provided at the edge of the outer corner piece 2, which extends toward the inner corner piece 1 to increase the thickness of the outer corner piece 2, making it easier to splice and install the outer corner piece 2 with the inner corner piece 1, the sealing plate 105 and other structures.

[0049] According to an embodiment of this utility model, another aspect provides a prefabricated wall panel, which includes the prefabricated wall panel assembly corner component described in this utility model, and also includes a prefabricated wall panel covering the original building wall. In prefabricated construction, both the prefabricated wall panel assembly corner component and the prefabricated wall panel can be prefabricated structures and can all be used as independent components. After the corner component and the wall panel are installed, the inner and outer sides of the prefabricated wall panel and the corner component can maintain continuity, and the sealing treatment can be done well. After the prefabricated wall panel construction is completed, only the joint position needs to be sealed. The outer joint of the wall panel and the corner component is caulking, and the inner joint is airtight. This can greatly simplify the construction process at the corner when constructing the prefabricated wall panel, shorten the construction cycle of the overall prefabricated wall panel construction, and improve construction efficiency.

[0050] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A prefabricated wall panel assembly for external corners, characterized in that, include: The external corner internal component (1) includes a pair of inner connecting plates (101) and a pair of auxiliary connecting plates (102). The pair of inner connecting plates (101) are fixedly connected along the side of the length direction, and the included angle between the pair of inner connecting plates (101) is adapted to match the external corner angle at the installation position. The pair of auxiliary connecting plates (102) are respectively fixedly connected to the side of the inner connecting plate (101) away from the other inner connecting plate (101). The outer corner piece (2) is connected to different auxiliary connecting plates (102) on both sides along its length. The outer corner piece (2) and the inner connecting plate (101) are respectively located on opposite sides of the auxiliary connecting plate (102).

2. The prefabricated wall panel assembly corner component according to claim 1, characterized in that, The external corner inner component (1) also includes a sealing plate (105), which is installed at the end of the external corner inner component (1). The inner connecting plate (101) and the auxiliary connecting plate (102) are both in contact with the sealing plate (105). The sealing plate (105) completely seals the space between the external corner outer component (2) and the inner connecting plate (101) and the auxiliary connecting plate (102).

3. The prefabricated wall panel assembly corner component according to claim 2, characterized in that, The sealing plate (105) is provided with an extension portion (106), which extends to the side of the inner connecting plate (101) away from the outer corner piece (2), and the extension portion (106) is adapted to be provided with a connecting portion.

4. The prefabricated wall panel assembly corner component according to claim 2, characterized in that, The sealing plate (105) is provided with a bending part (107), which extends toward the length direction of the inner connecting plate (101) and is located on the side of the sealing plate (105) close to the outer corner piece (2).

5. The precast wall panel assembly corner component according to any one of claims 1 to 4, characterized in that, Along the length direction, one end of the inner corner piece (1) extends to the outside of the outer corner piece (2) so that the end of the inner corner piece (1) forms a splicing protrusion; and / or, along the length direction, one end of the outer corner piece (2) extends to the outside of the inner corner piece (1) so that the end of the inner corner piece (1) forms a splicing groove.

6. The prefabricated wall panel assembly corner component according to any one of claims 1 to 4, characterized in that, The auxiliary connecting plate (102) has a first fitting on one side edge away from the inner connecting plate (101), and the outer corner piece (2) has a second fitting on both sides. The first fitting and the second fitting are fixedly connected together.

7. The precast wall panel assembly corner component according to any one of claims 1 to 4, characterized in that, An inner folded edge is provided at the edge of the outer corner piece (2), and the inner folded edge extends toward the inner corner piece (1).

8. The precast wall panel assembly corner component according to any one of claims 1 to 4, characterized in that, The edge of the side where the inner connecting plate (101) connects to the auxiliary connecting plate (102) is perpendicular to the auxiliary connecting plate (102).

9. The precast wall panel assembly corner component according to any one of claims 1 to 4, characterized in that, The external corner piece (2) is a bent plate, an arc-shaped plate, or a flat plate.

10. A precast wall panel, characterized in that, The prefabricated wall panel assembly with external corner components as described in any one of claims 1 to 9.

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