An assembled wall inner corner installation part and its installation method

Abstract

The present invention provides a prefabricated wall inner corner installation piece and an installation method thereof, belonging to the technical field of wall inner corner installation. The prefabricated wall inner corner installation piece and the installation method thereof include a first keel, an inner corner piece, a telescopic piece, a first wall panel and a second wall panel. In the present invention, the length of the telescopic piece is adjusted according to the installation requirements, so as to adjust the distance between the first keel and the wall surface, level the first keel, connect the first connecting plate to the leveled first keel, so that the inner corner piece is arranged at a first preset height on the wall surface, abut the second connecting plate against the first wall panel among two adjacent wall panels, connect the third connecting plate to the second wall panel located at the inner corner of the wall surface, so that the second wall panel is arranged at a second preset height on the wall surface, so that the second wall panel among two adjacent wall panels protrudes on the wall surface, forming a concave-convex modeling structure on the wall surface, with simple structure and convenient installation.

Description

Technical Field

[0001] The present invention relates to the technical field of installation of wall inside corners, and particularly relates to an assembled wall inside corner installation piece and an installation method thereof. Background Art

[0002] Wall decoration is a key area for the interior space decoration of buildings. Wall decoration can protect the wall, enhance the firmness and durability of the wall, and extend the service life of the wall; it can also improve the use function of the wall, such as improving the heat insulation, heat preservation and sound insulation capabilities of the wall, enhancing the artistic effect of the building, and beautifying the environment at the same time. It is necessary to set concave and convex shapes on the wall, that is, one of the two adjacent wall panels is set to protrude. However, in the current wall installation, only the connecting pieces are respectively connected to the two wall panels, and only the two adjacent wall panels can be respectively installed at a fixed height, and one of the two adjacent wall panels cannot be protruded on the wall.

[0003] Chinese Patent CN109403575A, published on March 1, 2019, discloses a wall panel integrated installation assembly and a wall decoration method. The wall panel integrated installation assembly includes: a plurality of wall panels arranged in sequence along the extending direction of the wall body, and a decorative layer is provided on the surface of the wall panel; a flat joint device arranged between two adjacent wall panels and used for connecting the two adjacent wall panels, and the two wall panels are fixed to the wall body through the flat joint device; an inside corner installation component arranged at the wall inside corner of the wall body, and the wall panels on both sides of the wall inside corner are fixed to the wall body through the inside corner installation component; an outside corner fixing piece arranged at the wall outside corner of the wall body, and the wall panels on both sides of the wall outside corner are fixed to the wall body through the outside corner fixing piece. The present invention provides a wall panel integrated installation assembly and a wall decoration method, which can realize the rapid assembly of the wall panel and the wall body, decorate the wall body, and improve the industrialization level. In the above patent, since the distances between the flat joint device, the inside corner installation component, and the outside corner fixing piece and the wall surface are all determined values, the wall panels are installed at a fixed height on the wall surface, and one of the two adjacent wall panels cannot be protruded on the wall surface. Summary of the Invention

[0004] The purpose of the present invention is to propose an assembled wall inside corner installation piece and an installation method thereof for the deficiencies of the above-mentioned prior art.

[0005] The present invention provides an assembled wall inner corner installation part, which includes a first keel, an inner corner part, an expansion part with adjustable length, an adjacent first wall panel and a second wall panel; one end of the expansion part is connected to the first keel and fixed to the wall surface, and the length of the expansion part is adjusted to adjust the distance between the first keel and the wall surface; the inner corner part includes a first connecting plate connected to the first keel, a second connecting plate used for abutting against the first wall panel to close the first wall panel, and a third connecting plate used for connecting to the second wall panel, and two ends of the second connecting plate are respectively connected to the first connecting plate and the third connecting plate.

[0006] Further, the wall panel includes a first card slot, and the third connecting plate is clamped in the first card slot.

[0007] Further, the first keel includes a first base plate, a first installation through hole is provided on the first connecting plate, and the inner corner part further includes a first fastening structure with one end passing through the first installation through hole and fixedly connected to the first base plate.

[0008] Further, the first keel further includes two first stop plates symmetrically connected to two side ends of the first base plate, the two first stop plates are arranged oppositely, a first insertion through hole is provided between the two first stop plates, the first connecting plate abuts against the first stop plate, and one end of the first fastening structure sequentially passes through the first installation through hole and the first insertion through hole and is fixedly connected to the first base plate.

[0009] Further, a strip-shaped second installation through hole is provided on the first base plate, the expansion part includes an expansion tube, a lead screw, and a fastening nut, the expansion tube is fixedly connected to the wall surface, a first internal thread is provided inside the expansion tube, the lead screw includes a stud and a limit block connected to one end of the stud, one end of the stud passes through the second installation through hole and is screwed to the first internal thread, and the fastening nut is screwed to a part of the stud on the side of the first base plate when the limit block abuts against the first base plate.

[0010] Further, the inner corner part further includes a support plate for limiting the second wall panel when the third connecting plate is clamped in the first card slot, and the support plate is connected to a part of the second connecting plate located between the first connecting plate and the third connecting plate.

[0011] Further, the inner corner part is of a Z-shaped structure, the first connecting plate and the third connecting plate are respectively arranged on different sides of the second connecting plate, and the support plate and the third connecting plate are arranged on the same side of the second connecting plate.

[0012] Further, the inner corner part further includes a limit protrusion for limiting the wall panel when the first card slot moves towards the direction close to the third connecting plate, and the limit protrusion is connected to the third connecting plate.

[0013] Further, a first friction groove for increasing the friction force is provided on the support plate.

[0014] An installation method for an assembled wall inner corner installation part includes the following steps:

[0015] S1: Connect one end of the telescopic part to the first keel and fix it on the wall surface, and adjust the length of the telescopic part to adjust the distance between the first keel and the wall surface;

[0016] S2: Connect the first connecting plate of the inner corner part to the first keel, and abut the second connecting plate of the inner corner part against the first wallboard among two adjacent wallboards to close the mouth of the first wallboard;

[0017] S3: Connect the third connecting plate of the inner corner part to the second wallboard among two adjacent wallboards.

[0018] The assembled wall inner corner installation part and its installation method of the present invention have the following beneficial effects:

[0019] At the wall inner corner, the first keel is arranged along the extension direction of one side end of the wall surface. One end of the telescopic part is connected to the first keel and fixed on the wall surface. The length of the telescopic part is adjusted according to the installation requirements, so as to adjust the distance between the first keel and the wall surface, and complete the adjustment of the height at the preset position on the first keel. By adjusting multiple telescopic parts, the first keel can be leveled. Connect the first connecting plate to the leveled first keel, so that the inner corner part is arranged at the first preset height on the wall surface. Abut the second connecting plate against the first wallboard among two adjacent wallboards to close the mouth of the first wallboard. Connect the third connecting plate to the second wallboard at the wall inner corner, so that the second wallboard is arranged at the second preset height on the wall surface, so that the second wallboard among two adjacent wallboards protrudes from the wall surface, forming a concave-convex modeling structure on the wall surface, with simple structure and convenient installation. Description of the Drawings

[0020] The drawings incorporated into the specification and constituting a part of the specification illustrate the embodiments of the present invention and are used to explain the principles of the present invention together with the description. In these drawings, similar reference numerals are used to represent similar elements. The following drawings in the description are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a partial structural schematic diagram of an assembled wall inner corner installation part and its installation method according to an embodiment of the present invention;

[0022] Figure 2Schematic diagram of the structure when the first wall panel in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention does not abut against the second connecting plate;

[0023] Figure 3 Schematic diagram of the structure of the first keel in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention;

[0024] Figure 4 Side view of the first keel in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention;

[0025] Figure 5 Side view of the internal corner part in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention;

[0026] Figure 6 Partial schematic diagram of the structure of the internal corner part in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the first friction groove in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention;

[0028] Figure 8 Explosion schematic diagram of the telescopic part in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention;

[0029] Figure 9 Schematic diagram of the structure of the lead screw in an assembled wall panel internal corner installation part and its installation method according to an embodiment of the present invention.

[0030] In the figure: 1 - first keel, 11 - first base plate, 111 - second installation through hole, 12 - first stop baffle, 13 - first insertion through hole, 2 - internal corner part, 21 - first connecting plate, 211 - first installation through hole, 22 - limiting protrusion, 23 - second connecting plate, 24 - third connecting plate, 25 - first fastening structure, 26 - support plate, 261 - first friction groove, 3 - telescopic part, 31 - lead screw, 311 - stud, 312 - limiting block, 32 - expansion tube, 33 - reinforcement tube, 34 - gasket, 4 - wall panel, 41 - first card slot. Detailed implementation manners

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other arbitrarily.

[0032] Please refer to Figures 1 to 9 An assembled wall corner installation part according to an embodiment of the present invention includes a first keel 1, a corner part 2, a telescopic part 3 with adjustable length, a first wall panel 4 and a second wall panel 4 adjacent to each other; one end of the telescopic part 3 is connected to the first keel 1 and fixed to the wall surface, and the length of the telescopic part 3 is adjusted to adjust the distance between the first keel 1 and the wall surface; the corner part 2 includes a first connecting plate 21 connected to the first keel 1, a second connecting plate 23 for abutting against the first wall panel 4 to close the first wall panel 4, and a third connecting plate 24 for connecting to the second wall panel 4. Both ends of the second connecting plate 23 are respectively connected to the first connecting plate 21 and the third connecting plate 24.

[0033] The wall panel 4 may include a first card slot 41, and the third connecting plate 24 is snapped into the first card slot 41, which is convenient for installation and improves the stability of the connection between the third connecting plate 24 and the wall panel 4.

[0034] Specifically, the first card slots 41 may be symmetrically arranged at both ends of the wall panel 4, and the third connecting plates 24 of the two corner parts 2 are respectively snapped into the two first card slots 41 on the wall panel 4, improving the stability of the wall panel 4.

[0035] The first keel 1 may include a first base plate 11. A first installation through hole 211 is provided on the first connecting plate 21, and the corner part 2 further includes a first fastening structure 25 with one end passing through the first installation through hole 211 and fixedly connected to the first base plate 11.

[0036] Specifically, the first fastening structure 25 may be a screw or a bolt. By observation, the first installation through hole 211 and a preset position on the first base plate 11 are aligned, and then one end of the first fastening structure 25 passes through the first installation through hole 211 and is fixedly connected to the first base plate 11, thereby firmly connecting the first connecting plate 21 and the first base plate 11, improving the stability of the connection between the first keel 1 and the corner part 2, and being convenient for installation. A plurality of first installation through holes 211 may be equidistantly provided on the first connecting plate 21, so that one corner part 2 can be connected by a plurality of first keels 1, and the corner part 2 is fixed by a plurality of first keels 1, improving the stability of the corner part 2.

[0037] The first keel 1 may further include two first stop plates 12 symmetrically connected to two side ends of the first base plate 11. The two first stop plates 12 are arranged oppositely, and a first insertion through hole 13 is provided between the two first stop plates 12. The first connecting plate 21 abuts against the first stop plate 12, and one end of the first fastening structure 25 sequentially passes through the first mounting through hole 211 and the first insertion through hole 13 and is fixedly connected to the first base plate 11.

[0038] Specifically, the first stop plate 12 may be a seven-shaped plate. One ends of the two first stop plates 12 are respectively connected to the two side ends of the first base plate 11. The two first stop plates 12 are arranged oppositely, and a first insertion through hole 13 is formed between the other ends of the two first stop plates 12. By observation, the first mounting through hole 211 and the first insertion through hole 13 are aligned, so that the first connecting plate 21 is parallel to the first base plate 11. The first connecting plate 21 abuts against the first stop plate 12, then the first stop plate 12 supports the first connecting plate 21. One end of the first fastening structure 25 sequentially passes through the first mounting through hole 211 and the first insertion through hole 13 and is fixedly connected to the first base plate 11, thereby tightly connecting the first connecting plate 21 and the first base plate 11. The two first stop plates 12 can limit the connection of the first fastening structure 25 to the first base plate 11. By aligning the first mounting through hole 211 and the first insertion through hole 13, it is convenient to align the first mounting through hole 211 with a preset position on the first base plate 11.

[0039] The first base plate 11 may be provided with a strip-shaped second mounting through hole 111. The telescopic member 3 includes an expansion tube 32, a lead screw 31, and a fastening nut. The expansion tube 32 is fixedly connected to the wall surface. A first internal thread is provided inside the expansion tube 32. The lead screw 31 includes a stud 311 and a limit block 312 connected to one end of the stud 311. One end of the stud 311 passes through the second mounting through hole 111 and is screwed to the first internal thread. The fastening nut is screwed onto the part of the stud 311 on the side of the first base plate 11 when the limit block 312 abuts against the first base plate 11.

[0040] Specifically, the second installation through-hole 111 is strip-shaped, which facilitates connecting the telescopic member 3 to different positions on the first substrate 11 and different positions on the wall surface. A gasket 34 can also be included to fixedly connect the expansion tube 32 to the wall surface. One end of the stud 311 sequentially passes through the second installation through-hole 111 and is screwed to the first internal thread. The length of the stud 311 extending into the first internal thread is adjusted, thereby adjusting the overall length of the telescopic member 3, and further adjusting the distance between the first substrate 11 and the wall surface. Furthermore, the distance between the first connecting plate 21 and the wall surface, and the distance between the third connecting plate 24 and the wall surface are adjusted, facilitating clamping the third connecting plate 24 into the first card slot 41 on the second wall panel 4 at a preset distance from the wall surface. The gasket 34 is sleeved on the part of the stud 311 located between the limit block 312 and the first substrate 11. The gasket 34 abuts against the first substrate 11, and the limit block 312 abuts against the gasket 34. The fastening nut is screwed on the part of the stud 311 located on one side of the first substrate 11 to complete the installation.

[0041] The internal corner member 2 can further include a support plate 26 for limiting the second wall panel 4 when the third connecting plate 24 is clamped into the first card slot 41. The support plate 26 is connected to the part of the second connecting plate 23 located between the first connecting plate 21 and the third connecting plate 24.

[0042] Specifically, after the third connecting plate 24 is clamped into the first card slot 41 on the second wall panel 4, if an external force impacts the second wall panel 4, the second wall panel 4 moves towards the direction close to the wall surface, and the second wall panel 4 drives the third connecting plate 24 to move towards the direction close to the wall surface, which easily breaks the third connecting plate 24, resulting in unstable connection between the internal corner member 2 and the second wall panel 4. By connecting the support plate 26 to the part of the second connecting plate 23 located between the first connecting plate 21 and the third connecting plate 24, when the third connecting plate 24 is clamped into the first card slot 41, the support plate 26 can abut against the second wall panel 4. The support plate 26 can limit the second wall panel 4. At the same time, when an external force impacts the second wall panel 4 and the second wall panel 4 moves towards the direction close to the wall surface, the support plate 26 can shock-absorb the second wall panel 4, reduce the force on the wall panel 4, protect the wall panel 4, and improve the connection stability between the wall panel 4 and the internal corner member 2.

[0043] The internal corner member 2 can be a Z-shaped structure. The first connecting plate 21 and the third connecting plate 24 are respectively arranged on different sides of the second connecting plate 23, and the support plate 26 and the third connecting plate 24 are arranged on the same side of the second connecting plate 23.

[0044] Specifically, the first connecting plate 21 can be vertically connected to the second connecting plate 23, and the third connecting plate 24 can be vertically connected to the second connecting plate 23. Since the first wall panel 4 and the second wall panel 4 are arranged on both sides of the second connecting plate 23, the first connecting plate 21 and the third connecting plate 24 need to be arranged on different sides of the second connecting plate 23 respectively, so as to facilitate connecting the first connecting plate 21 to the first keel 1 and clamping the third connecting plate 24 into the first card slot 41, which is convenient for installation.

[0045] The internal corner member 2 may further include a limiting protrusion 22 for limiting the wall panel 4 when the first card slot 41 moves in the direction close to the third connecting plate 24, and the limiting protrusion 22 is connected to the third connecting plate 24.

[0046] Specifically, the third connecting plate 24 is clamped into the first card slot 41 of the wall panel 4, and the limiting protrusion 22 limits the wall panel 4, so that the surface of the internal corner member 2 and the wall panel 4 is more flat and beautiful; the second connecting plate 23 closes the opening of the first wall panel 4, so that the first wall panel 4 and the second wall panel 4 form a concave-convex shape on the wall surface, increasing the beauty of the space and at the same time playing a role in connecting the relationship between the front and back levels.

[0047] The support plate 26 may be provided with a first friction groove 261 for increasing the friction force. The first friction groove 261 and the wall panel 4 are used in cooperation to increase the friction force and reduce the sliding of the wall panel 4 during installation.

[0048] The telescopic member 3 may further include a reinforcing pipe 33 for increasing the strength of the stud 311. The inner side of the reinforcing pipe 33 is provided with a second internal thread through which one end of the stud 311 passes through the second installation through hole 111, the first installation through hole 211 in sequence, and is screwed to the second internal thread and the first internal thread.

[0049] Specifically, the reinforcing pipe 33 may be a reinforcing metal pipe.

[0050] An installation method of an assembled wall internal corner installation member includes the following steps:

[0051] S1: Connect one end of the telescopic member 3 to the first keel 1 and fix it to the wall surface, and adjust the length of the telescopic member 3 to adjust the distance between the first keel 1 and the wall surface;

[0052] S2: Connect the first connecting plate 21 of the internal corner member 2 to the first keel 1, and abut the second connecting plate 23 of the internal corner member 2 against the first wall panel 4 among the adjacent two wall panels 4 to close the opening of the first wall panel 4;

[0053] S3: Connect the third connecting plate 24 of the internal corner member 2 to the second wall panel 4 among the adjacent two wall panels 4.

[0054] At the interior corner of the wall surface, the first keel 1 is arranged along the extending direction of one side end of the wall surface. One end of the telescopic member 3 is connected to the first keel 1 and fixed on the wall surface. The length of the telescopic member 3 is adjusted according to the installation requirements, so as to adjust the distance between the first keel 1 and the wall surface, and complete the adjustment of the height at the preset position on the first keel 1. By adjusting a plurality of telescopic members 3, the first keel 1 can be leveled. The first connecting plate 21 is connected to the leveled first keel 1, so that the corner member 2 is arranged at the first preset height on the wall surface. The second connecting plate 23 is abutted against the first wall panel 4 among two adjacent wall panels 4 to finish the edge closing of the first wall panel 4. The third connecting plate 24 is connected to the second wall panel 4 located at the interior corner of the wall surface, so that the second wall panel 4 is arranged at the second preset height on the wall surface, and thus the second wall panel 4 among two adjacent wall panels 4 protrudes from the wall surface, forming a concave-convex modeling structure on the wall surface.

[0055] The content described above can be implemented alone or in various combinations, and these variant ways are all within the protection scope of the present invention.

[0056] It should be noted that in the description of the present application, the terms of orientation or positional relationship indicated, such as "upper end", "lower end", and "bottom end", are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this application is usually placed. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled wall surface internal corner installation part, characterized in that: It includes a first keel (1), an internal corner member (2), an extensible member (3) with adjustable length, an adjacent first wall panel (4) and a second wall panel (4); one end of the extensible member (3) is connected to the first keel (1) and fixed to the wall surface, and the length of the extensible member (3) is adjusted to adjust the distance between the first keel (1) and the wall surface; the internal corner member (2) includes a first connecting plate (21) connected to the first keel (1), a second connecting plate (23) for abutting against the first wall panel (4) to finish the opening of the first wall panel (4), and a third connecting plate (24) for connecting to the second wall panel (4), and both ends of the second connecting plate (23) are respectively connected to the first connecting plate (21) and the third connecting plate (24); the wall panel (4) includes a first card slot (41), and the third connecting plate (24) is snapped into the first card slot (41); the internal corner member (2) further includes a support plate (26) for limiting the second wall panel (4) when the third connecting plate (24) is snapped into the first card slot (41), and the support plate (26) is connected to a part of the second connecting plate (23) located between the first connecting plate (21) and the third connecting plate (24); the internal corner member (2) is of a Z-shaped structure, the first connecting plate (21) and the third connecting plate (24) are respectively arranged on different sides of the second connecting plate (23), and the support plate (26) and the third connecting plate (24) are arranged on the same side of the second connecting plate (23); the internal corner member (2) further includes a limiting protrusion (22) for limiting the wall panel (4) when the first card slot (41) moves towards the direction close to the third connecting plate (24), and the limiting protrusion (22) is connected to the third connecting plate (24).

2. The prefabricated wall inner corner installation part according to claim 1, characterized in that: The first keel (1) includes a first base plate (11), a first mounting through hole (211) is provided on the first connecting plate (21), and the internal corner member (2) further includes a first fastening structure (25) with one end passing through the first mounting through hole (211) and fixedly connected to the first base plate (11).

3. The prefabricated wall inner corner installation part according to claim 2, characterized in that: The first keel (1) further includes two first stop plates (12) symmetrically connected to two side ends of the first base plate (11), the two first stop plates (12) are arranged oppositely, a first insertion through hole (13) is provided between the two first stop plates (12), the first connecting plate (21) abuts against the first stop plate (12), and one end of the first fastening structure (25) passes through the first mounting through hole (211) and the first insertion through hole (13) in sequence and is fixedly connected to the first base plate (11).

4. The prefabricated wall inner corner installation member according to claim 2, characterized in that: A strip-shaped second mounting through-hole (111) is provided on the first substrate (11). The telescopic member (3) includes an expansion tube (32), a lead screw (31), and a fastening nut. The expansion tube (32) is fixedly connected to the wall surface. A first internal thread is provided inside the expansion tube (32). The lead screw (31) includes a stud (311) and a limit block (312) connected to one end of the stud (311). One end of the stud (311) passes through the second mounting through-hole (111) and is screwed to the first internal thread. The fastening nut is screwed onto the part of the stud (311) on the side of the first substrate (11) when the limit block (312) abuts against the first substrate (11).

5. The prefabricated wall inner corner installation part according to claim 1, characterized in that: A first friction groove (261) for increasing friction is provided on the support plate (26).

6. The installation method of an assembled wall surface internal corner installation part according to any one of claims 1 to 5, characterized in that It includes the following steps: S1: Connect one end of the telescopic member (3) to the first keel (1) and fix it to the wall surface, and adjust the length of one telescopic member (3) to adjust the distance between the first keel (1) and the wall surface; S2: Connect the first connecting plate (21) of the internal corner member (2) to the first keel (1), and abut the second connecting plate (23) of the internal corner member (2) against the first wall panel (4) among two adjacent wall panels (4) to finish the edge of the first wall panel (4); S3: Connect the third connecting plate (24) of the internal corner member (2) to the second wall panel (4) among two adjacent wall panels (4).

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