Fabricated external wall panel

Abstract

The utility model relates to the technical field of building assembly, in particular to an assembly type external wall panel which comprises a building wall panel, a connecting structure and a resistance structure. The building wallboards are connected end to end through the connecting structures, and the resistance structures are arranged in the building wallboards. The two ends of the connecting structure can be connected with the two adjacent building wallboards in a clamped mode correspondingly, and telescopic cavities are formed between the connecting structure and the building wallboards. The force resisting structure comprises a supporting body, a frame body and a fastener, the frame body is formed by combining two M-shaped strips in a mirror image mode, the two M-shaped strips are arranged outside the supporting body in a surrounding mode, and the fastener is arranged on the frame body to fix the two M-shaped strips. When the building wallboard is affected by thermal expansion and cold contraction, not only can the joint between the building wallboards be prevented from cracking, but also the building wallboards can be prevented from being bent or broken.

Description

Technical Field

[0001] The utility model relates to the technical field of building assembly, and particularly relates to a prefabricated exterior wall panel. Background Art

[0002] The concrete exterior wall panel is an important component of prefabricated buildings. Common concrete exterior wall panels generally consist of an outer panel, an inner panel, and filling materials filled between the inner and outer panels. In the prior art, after the exterior wall panels are clamped together, the two wall panels are fixed together with cement; however, due to thermal expansion and contraction, cracks often occur at the joints of the wall panels, making the fixation between the two wall panels insecure.

[0003] Therefore, the patent with the application number CN202220520291.7 discloses a prefabricated concrete anti-cracking exterior wall panel, which uses an iron plate to connect the first wall panel and the second wall panel. By setting the thickness of the insertion block to be less than the width of the first insertion groove, cracks will not occur at the joint of the first wall panel and the second wall panel. Although this patent solves the problem that the joints between the wall panels are prone to cracking due to thermal expansion and contraction, since the walls of prefabricated houses are particularly susceptible to the influence of thermal expansion and contraction, not only are the joints between the wall panels prone to cracking, but the building wall panels themselves are also prone to bending or cracking. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a prefabricated exterior wall panel, which can not only prevent cracks from occurring at the joints between building wall panels, but also prevent the building wall panels themselves from bending or cracking when affected by thermal expansion and contraction.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] A prefabricated exterior wall panel, comprising building wall panels, a connection structure, and a resistance structure; a plurality of the building wall panels are provided, and the plurality of building wall panels are connected end to end through the connection structure, and the resistance structure is arranged in each building wall panel;

[0007] Both ends of the connection structure can be respectively clamped with two adjacent building wall panels, and a telescopic cavity is formed between the connection structure and the building wall panel;

[0008] The resistance structure includes a support body, a frame body, and a fastener. The frame body is formed by mirror-image combination of two M-shaped strips. The two M-shaped strips surround the support body, and the fastener is arranged on the frame body to fix the two M-shaped strips.

[0009] As an optional solution, the fastener is a stirrup, and the stirrup is fixedly sleeved on the frame body.

[0010] As an optional solution, the support body is a foam layer.

[0011] As an alternative solution, anti-deformation grooves are provided on the side surface of the building wall panel.

[0012] As an alternative solution, one end of the connecting structure is provided with a first insertion strip, and the other end is provided with a first clamping plate. The first insertion strip and the first clamping plate are elastic; one end of the building wall panel is provided with a second insertion strip that can be clamped inside the first clamping plate, and the other end of the building wall panel is provided with a second clamping plate that can clamp the first insertion strip.

[0013] As an alternative solution, strip-shaped notches are provided on the first insertion strip.

[0014] Due to the adoption of the above technical solution, the present utility model will have the following beneficial effects:

[0015] An assembled exterior wall panel provided by the present utility model uses multiple building wall panels connected end to end through a connecting structure, thereby forming a telescopic cavity between the connecting structure and the building wall panel. This telescopic cavity provides a moving space for the thermal expansion of the building wall panel, preventing the joints between the building wall panels from cracking. By arranging two M-shaped strips to enclose a support body to form an opposing cusp structure, it can provide an endogenous space for accommodating thermal expansion and contraction, and the fasteners lock the frame into a stable structure, providing a strong "fortress" for endogenous resistance to thermal expansion and contraction. This enables the stress changes caused by thermal expansion and contraction to be directionally released within the range of the "fortress", thus becoming a buffer zone for resisting thermal expansion and contraction in the building wall panel, and thereby withstanding various stress changes brought about by the thermal expansion and contraction of the building wall, preventing the building wall panel itself from bending or cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the assembled exterior wall panel described in the embodiments of the present utility model;

[0018] Figure 2 It is Figure 1 the top view of the assembled exterior wall panel described above;

[0019] Figure 3 It is Figure 1 the exploded view of the assembled exterior wall panel described above;

[0020] Figure 4 It is Figure 1Stereoscopic sectional view of the prefabricated exterior wall panel described above;

[0021] Figure 5 is Figure 1 Stereogram of the resistance structure of the prefabricated exterior wall panel described above.

[0022] Reference numerals: 1, building wall panel; 11, anti-deformation groove; 12, second insert; 13, second splint; 2, connection structure; 21, first insert; 211, strip-shaped notch; 22, first splint; 3, resistance structure; 31, support body; 32, M-shaped strip; 33, fastener; 4, expansion cavity. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] Please refer to Figures 1-5 , in an embodiment of a prefabricated exterior wall panel of the present invention, the prefabricated exterior wall panel includes a building wall panel 1, a connection structure 2 and a resistance structure 3; there are 2 building wall panels 1, and the 2 building wall panels 1 are connected end to end through the connection structure 2, and 3 resistance structures 3 are arranged at intervals in each building wall panel 1.

[0027] Wherein, both ends of the connecting structure 2 can be respectively clamped with two adjacent building wall panels 1 to prevent the building wall panels 1 from detaching, and a telescopic cavity 4 is formed between the connecting structure 2 and the building wall panels 1; when the building wall panels 1 expand due to heat, the building wall panels 1 move towards the telescopic cavity 4, and during the movement, the adjacent two building wall panels 1 are prevented from being affected by the expansion and squeezing each other, resulting in the bending of their plates.

[0028] Wherein, the resistance structure 3 includes a support body 31, a frame body and a fastener 33. The frame body is formed by mirror-image combination of two M-shaped strips 32. The two M-shaped strips 32 surround the support body 31, and the fastener 33 is arranged on the frame body to fix the two M-shaped strips 32. The opposing corner tip structures formed by the two M-shaped strips 32 surrounding the support body 31 provide an endogenous space for accommodating thermal expansion and contraction; the fastener 33 locks the frame body into a stable structure, providing a strong "fortress" against thermal expansion and contraction, enabling the stress changes of thermal expansion and contraction to be directionally released within the range of the "fortress", thus becoming a buffer zone against thermal expansion and contraction in the building wall panel 1.

[0029] Specifically, the fastener 33 can be set as a closed rectangular stirrup, and an annular limiting groove is coaxially opened on the frame body, and the stirrup is fixedly sleeved on the frame body along the limiting groove.

[0030] Specifically, the support body 31 can be set as a foam layer. When manufacturing the resistance structure 3, the two M-shaped strips 32 are temporarily put together on the workbench, that is, the two corner tips face inward and are opposed to each other at an appropriate distance, and fluid foam is injected into the enclosed M-shaped strips 32. After the foam becomes solid, the two sides of the M-shaped strips 32 with V-shaped corners are stuffed and connected into a whole to withstand various stress changes brought about by the thermal expansion and contraction of the building wall.

[0031] On this basis, four vertically extending anti-deformation grooves 11 can be opened on the side surface of the building wall panel 1 along the length direction, and the anti-deformation grooves 11 penetrate through the upper and lower ends of the building wall panel 1. By opening a plurality of anti-deformation grooves 11 on the side surface of the building wall panel 1, when the building wall panel 1 shrinks due to temperature reduction, the shrinkage of the building wall panel 1 itself pulls the anti-deformation grooves 11 to become larger, and the inner walls of the vertically arranged anti-deformation grooves 11 are pulled into an inclined shape. The anti-deformation grooves 11 bear the shrinkage of the building wall panel 1, avoiding the situation that cracks appear on the surface of the building wall panel 1 during the shrinkage process, and improving the anti-thermal expansion and contraction effect of the building wall panel 1.

[0032] Specifically, a first insert bar 21 can be integrally formed and fixedly connected to one end of the connecting structure 2, and a first clamping plate 22 can be integrally formed and fixedly connected to the other end. Both the first insert bar 21 and the first clamping plate 22 are elastic, or the entire connecting structure 2 can be made of an elastic material; a second insert bar 12 is integrally formed and fixedly connected to one end of the building wall panel 1, and the end of the second insert bar 12 protrudes outward. The inner edge of the first clamping plate 22 is recessed inward corresponding to the protrusion. When the second insert bar 12 is pushed open by the first clamping plate 22 until the protrusion and the recess coincide, the second insert bar 12 is clamped inside the first clamping plate 22; a second clamping plate 13 for clamping the first insert bar 21 is provided at the other end of the building wall panel 1. Similarly, the inner edge of the second clamping plate 13 is recessed inward, and the end of the first insert bar 21 protrudes outward corresponding to the recess. When the second clamping plate 13 is sleeved on the first insert bar 21 and advanced until the protrusion and the recess coincide, the second clamping plate 13 is clamped on the first insert bar 21.

[0033] Further, in order to improve the elasticity of the end of the first insert bar 21, a plurality of strip-shaped notches 211 are provided on the first insert bar 21 in the width direction. These strip-shaped notches 211 are arranged in parallel and extend along the length direction of the first insert bar 21.

[0034] The usage method or working principle of the present utility model is as follows:

[0035] The first insert bar 21 is clamped inside the second clamping plate 13, and the first clamping plate 22 is clamped on the second insert bar 12, so that both ends of the connecting structure 2 can be respectively clamped with two adjacent building wall panels 1 to prevent the building wall panels 1 from separating. After both ends of the connecting structure 2 are clamped with the building wall panels 1, a telescopic cavity 4 is formed between the outer side surface of the first insert bar 21 and the inner side wall of the second clamping plate 13, and between the outer side surface of the second insert bar 12 and the inner side wall of the first clamping plate 22. This telescopic cavity 4 provides a moving space for the thermal expansion of the building wall panel 1 and prevents the joints between the building wall panels 1 from cracking.

[0036] Since the opposing cusp structures formed by enclosing the support body 31 by two M-shaped strips 32 provide an endogenous space for accommodating thermal expansion and contraction; and the fasteners 33 lock the frame into a stable structure, providing a strong "fortress" against thermal expansion and contraction endogenously, so that the stress changes of thermal expansion and contraction are directionally released within the range of the "fortress", thus becoming a buffer zone against thermal expansion and contraction in the building wall panel 1 to withstand various stress changes brought about by the thermal expansion and contraction of the building wall, and prevent the building wall panel 1 itself from bending or cracking.

[0037] The above-described embodiments only represent several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. An assembled exterior wall panel, characterized in that: It comprises a building wall panel (1), a connection structure (2) and a force-resistance structure (3); the building wall panel (1) is provided with a plurality of pieces, the plurality of building wall panels (1) are connected end to end via the connection structure (2), and the force-resistance structure (3) is provided in each of the building wall panels (1); The two ends of the connection structure (2) can be respectively connected to two adjacent building wall panels (1), and a telescopic cavity (4) is formed between the connection structure (2) and the building wall panels (1); The force-resistant structure (3) comprises a support body (31), a frame body and a fastener (33); the frame body is composed of two M-shaped bars (32) in a mirror-image combination; the two M-shaped bars (32) are surrounded outside the support body (31); and the fastener (33) is arranged on the frame body to fix the two M-shaped bars (32).

2. The assembled exterior wall panel according to claim 1, characterized in that: The fastener (33) is a stirrup, and the stirrup is fixedly sleeved on the frame.

3. The assembled exterior wall panel according to claim 1, characterized in that: The support body (31) is a foam layer.

4. The assembled exterior wall panel according to claim 1, characterized in that: An anti-deformation groove (11) is provided on the side surface of the building wall panel (1).

5. The assembled exterior wall panel according to claim 1, characterized in that: The connection structure (2) is provided with a first inserting strip (21) at one end and a first clamping plate (22) at the other end, the first inserting strip (21) and the first clamping plate (22) being elastic; the building wall panel (1) is provided with a second inserting strip (12) at one end that can be snapped into the first clamping plate (22), and the building wall panel (1) is provided with a second clamping plate (13) that can be snapped into the first inserting strip (21) at the other end.

6. The assembled exterior wall panel according to claim 5, characterized in that: The first inserting strip (21) is provided with a strip-shaped notch (211).

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