An anti-cracking structure for prefabricated steel structure walls

Abstract

An anti-cracking structure for a prefabricated steel structure wall, comprising a first wall panel and a second wall panel; cross bars are fixedly connected inside both the first wall panel and the second wall panel; vertical bars are fixedly connected inside both the first wall panel and the second wall panel; the number of cross bars and vertical bars is set to be multiple, and the cross bars and vertical bars are arranged in a staggered manner; the materials of the cross bars and vertical bars are both stainless steel. By arranging cross bars and vertical bars in a staggered manner inside each wall panel, the present invention can pour and fix between the cross bars and vertical bars of the wall panel, strengthen the strength of the entire wall, ensure the wall quality, and with the arrangement of the internal cross bars and vertical bars, improve the plasticity of the wall, prevent the phenomenon of wall cracking caused by stress concentration of the wall over a long time, and improve the service life of the wall.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated walls, and particularly to an anti-cracking structure for a steel structure prefabricated wall. Background Art

[0002] A prefabricated building refers to a building in which a large amount of on-site work in the traditional construction method is transferred to a factory. Building components and fittings are processed and manufactured in the factory and transported to the building construction site, and then assembled and installed on-site through reliable connection methods.

[0003] A Chinese patent with the publication number CN111119374A discloses an anti-cracking lightweight wall panel and a wall structure. The anti-cracking lightweight wall panel includes: a lightweight wall panel having a steel mesh; and embedded steel, the embedded steel is connected to the steel mesh and is located in the lightweight wall panel. By pre-setting the embedded steel in the lightweight wall panel, the structure of the lightweight wall panel is strengthened, the integrity of the wall body around the door and window openings surrounded by the lightweight wall panel is enhanced, the problem that the wall surface at the corner of the door and window openings is prone to cracking can be effectively avoided, and at the same time, the workload of subsequent installation and reinforcement structures at the construction site is reduced.

[0004] In the prior art, generally, embedded steel is used to avoid the problem of easy cracking of the wall surface at the corner of the door and window openings. However, the strength of the main body of the wall panel may not be high, resulting in the phenomenon of wall cracking caused by stress concentration after long-term use, which affects the normal use of the wall body. Summary of the Invention

[0005] The main object of the present invention is to propose an anti-cracking structure for a steel structure prefabricated wall, aiming to improve the plasticity of the wall, prevent the phenomenon of wall cracking caused by stress concentration in the wall over a long time, and improve the service life of the wall.

[0006] To achieve the above object, the present invention provides an anti-cracking structure for a steel structure prefabricated wall, including a first wall panel and a second wall panel; cross bars are fixedly connected inside both the first wall panel and the second wall panel; vertical bars are fixedly connected inside both the first wall panel and the second wall panel; the number of cross bars and vertical bars is set to be multiple, and the cross bars and vertical bars are arranged in a staggered manner; the materials of the cross bars and vertical bars are both stainless steel; in the prior art, generally embedded steel is used to avoid the problem of easy cracking of the wall surface at the corner position of the door and window openings, but the strength of the main body of the wall panel may not be high, resulting in the phenomenon of wall cracking caused by stress concentration during long-term use, affecting the normal use of the wall; when using this wall panel, cross bars and vertical bars arranged in a staggered manner are provided inside each wall panel, and pouring and fixing can be carried out between the cross bars and vertical bars of the wall panel to reinforce the strength of the entire wall, ensure the wall quality, and with the setting of the internal cross bars and vertical bars, the plasticity of the wall is improved, preventing the phenomenon of wall cracking caused by stress concentration in the wall over a long time, and improving the service life of the wall.

[0007] Columnar plates are fixedly connected to the outer surfaces of both the first wall panel and the second wall panel; the number of columnar plates is two and they are symmetrically arranged; embedding grooves are provided on the surfaces of both the first wall panel and the second wall panel and close to one side of the columnar plates; reinforcing bars are fixedly connected to the surfaces of both the first wall panel and the second wall panel and far from one side of the columnar plates; card slots are provided on the surfaces of both the first wall panel and the second wall panel and close to one side of the reinforcing bars; the shapes of the card slots and the columnar plates are adapted to each other; during operation, when assembling the first wall panel and the second wall panel, the staff inserts the reinforcing bars on the surface of the second wall panel into the space between the columnar plates, and then the reinforcing bars will be stuck in the embedding grooves on the surface of the first wall panel, and the columnar plates on both sides are stuck in the card slots on the surface of the second wall panel. At this time, the first wall panel and the second wall panel can be preliminarily fixed, strengthening the connection between adjacent prefabricated wall panels and being beneficial to improving the overall performance between adjacent wall panels.

[0008] The outer surface of the reinforcing rod is provided with a trapezoidal groove; sliding grooves are provided inside the first wall panel and the second wall panel and close to one side of the columnar plate; U-shaped frames are slidably connected inside the first wall panel and the second wall panel and located in the sliding grooves; one end of the U-shaped frame penetrates inside the columnar plate; an inclined plate is fixedly connected to one end of the U-shaped frame close to the columnar plate; a trapezoidal block is slidably connected inside the columnar plate; the shape of the trapezoidal block is adapted to the shape of the trapezoidal groove; a groove adapted to the trapezoidal block is provided inside the columnar plate; in this embodiment, in the initial state, the trapezoidal block is not stuck inside the trapezoidal groove; during work, when the reinforcing rod on the surface of the second wall panel extends into the embedding groove, the reinforcing rod will then contact the U-shaped frame in the embedding groove and the sliding groove and squeeze it, so that the U-shaped frame synchronously drives the inclined plate to move downward, and then the inclined plate will contact the trapezoidal block and squeeze it. After that, when the first wall panel and the second wall panel are combined with each other, the trapezoidal block will be stuck into the trapezoidal groove. At this time, the connection stability between the wall panels is further enhanced, the situation of cracking at the joint between the wall panels is reduced, and there is no need for the relatively troublesome operation of using bolts in the prior art, and it is more convenient to use.

[0009] Clamping grooves are provided on the surface of the reinforcing rod; clamping blocks are fixedly connected to the surface of the U-shaped frame; the shapes of the clamping grooves and the clamping blocks are adapted; when the reinforcing rod is completely combined with the U-shaped frame, the clamping blocks will completely fit the clamping grooves. At this time, the first wall panel and the second wall panel will completely fit, which is convenient for subsequent use.

[0010] Receiving grooves are provided on the outer surfaces of the first wall panel and the second wall panel; convex grooves are provided inside the first wall panel and the second wall panel and located inside the receiving grooves; embedding rods are clamped on the outer surfaces of the first wall panel and the second wall panel; a rotating column is rotatably connected to the surface of the embedding rod; a convex block is fixedly connected to the bottom end of the rotating column; the shape of the convex block is adapted to the shape of the convex groove; during work, after the first wall panel and the second wall panel are connected, the staff holds this embedding rod by hand and inserts the embedding rod and the convex block along the receiving groove and the convex groove. After that, the convex blocks at different positions will be respectively stuck inside the convex grooves on the surfaces of the first wall panel and the second wall panel. At this time, the connectivity between the precast wall panels can be improved, and the possibility of fracture at the joint of the wall panels during long-term use can be avoided, and it is more convenient to use.

[0011] Circular grooves are provided inside the first wall panel and the second wall panel and below the convex grooves; the diameter of the circular groove is adapted to the diameter of the convex block; during work, when the convex block extends along the convex groove into the circular groove below it, the rotating column is manually rotated at this time, so that the rotating column drives the convex block at its lower end to rotate. After that, the protrusions at both ends of the convex block will move away from one side of the convex groove, and the protrusions of the convex block will be stuck in the circular groove below the convex groove. At this time, the embedding rod, the first wall panel and the second wall panel can be clamped tightly, the service life of the precast wall panels is improved, and the possibility of fracture at the joint between the wall panels is reduced.

[0012] Reinforcing steel wires are wound around the inner surfaces of the first wall panel and the second wall panel and on the outer surfaces of the cross bars and vertical bars; the reinforcing steel wires are wound in a staggered manner. Winding the reinforcing steel wires on the outer surfaces of the cross bars and vertical bars can improve the plasticity of the wall.

[0013] Heat preservation boards are fixedly connected to the inner sides of the first wall panel and the second wall panel and close to the circular grooves. When the convex blocks are stuck in the circular grooves, the convex blocks will press against the surfaces of the heat preservation boards, giving a certain supporting force to the heat preservation boards, reducing the phenomenon of deformation of the heat preservation boards during long-term use, and improving the heat preservation performance of the precast wall panels.

[0014] The interior of the heat preservation board is filled with a glass wool layer; and the outer wall of the glass wool layer is wrapped with aluminum foil. Wrapping the outer wall of the glass wool layer with aluminum foil can increase the sealing performance and prevent water seepage in the wall.

[0015] An extruded polystyrene board is sleeved on the outer surface of the heat preservation board; the length of the extruded polystyrene board is greater than the length of the heat preservation board; the extruded polystyrene board is a closed-cell structure and is a heat insulation material with many advantages such as moisture resistance, compressive resistance, corrosion resistance, light weight, low water absorption, anti-aging, and low thermal conductivity.

[0016] Due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] (1) By arranging cross bars and vertical bars distributed in a staggered manner inside each wall panel, the present invention can pour and fix between the cross bars and vertical bars of the wall panel to reinforce the strength of the entire wall, ensure the quality of the wall, and with the internal cross bars and vertical bars, improve the plasticity of the wall, prevent the phenomenon of wall cracking caused by stress concentration of the wall over a long time, and extend the service life of the wall.

[0018] (2) By synchronously driving the inclined plate to move downward through the U-shaped frame, the inclined plate will then contact and squeeze the trapezoidal block. When the first wall panel and the second wall panel are combined with each other, the trapezoidal block will be stuck into the trapezoidal groove. At this time, the connection stability between the wall panels is further enhanced, the situation of cracking at the joint between the wall panels is reduced, and there is no need for the relatively troublesome operation of fastening with bolts in the prior art, making it more convenient to use.

[0019] (3) By manually rotating the rotating column, the rotating column drives the convex block at its lower end to rotate. Then, the protrusions at both ends of the convex block will move away from one side of the convex groove, and the protrusions of the convex block will be stuck in the circular groove below the convex groove. At this time, the embedded rod, the first wall panel, and the second wall panel can be clamped tightly, improving the service life between the precast wall panels and reducing the possibility of fracture at the connection between the wall panels. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a cross-sectional view of the wall panel of the present invention;

[0023] Figure 3 is a cross-sectional view of the connection part of the wall panels in the present invention;

[0024] Figure 4 is in the present invention Figure 3 enlarged view of the structure at position A;

[0025] Figure 5 is a perspective view of the connection part of the first wall panel and the second wall panel in the present invention;

[0026] Figure 6 is in the present invention Figure 5 enlarged view of the structure at position B;

[0027] Figure 7 is a partial structural schematic diagram of the circular groove in the present invention;

[0028] Figure 8 is a partial structural schematic diagram of the insulation board in the present invention;

[0029] Figure 9 is a partial structural schematic diagram of the extruded polystyrene board in the present invention.

[0030] Explanation of the reference numerals in the drawings:

[0031] 1. First wall panel; 2. Second wall panel; 3. Cross bar; 4. Vertical bar; 5. Columnar plate; 6. Embedding groove; 7. Reinforcing bar; 8. Card slot; 9. Trapezoidal groove; 10. Sliding groove; 11. U-shaped frame; 12. Inclined plate; 13. Trapezoidal block; 14. Clamping groove; 15. Clamping block; 16. Accommodating groove; 17. Convex groove; 18. Embedding rod; 19. Rotating column; 20. Convex block; 21. Circular groove; 22. Reinforcing steel wire; 23. Insulation board; 24. Extruded polystyrene board. Detailed implementation manners

[0032] 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. 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.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions conflicts or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0035] Embodiment 1

[0036] As Figures 1 to 4 shown, an anti-cracking structure for a steel structure prefabricated wall in an embodiment of the present invention includes a first wall panel 1 and a second wall panel 2; cross bars 3 are fixedly connected inside both the first wall panel 1 and the second wall panel 2; vertical bars 4 are fixedly connected inside both the first wall panel 1 and the second wall panel 2; the number of cross bars 3 and vertical bars 4 is set to be multiple, and the cross bars 3 and vertical bars 4 are arranged in a staggered manner; the materials of the cross bars 3 and vertical bars 4 are both stainless steel; in the prior art, generally embedded steel is used to avoid the problem of easy cracking of the wall surface at the corner position of the door and window openings, but the strength of the main body of the wall panel may not be high, resulting in the phenomenon of wall cracking due to stress concentration during long-term use, affecting the normal use of the wall; when using this wall panel, cross bars 3 and vertical bars 4 arranged in a staggered manner are provided inside each wall panel, and pouring and fixing can be carried out between the cross bars 3 and vertical bars 4 of the wall panel to reinforce the strength of the entire wall, ensure the wall quality, and with the setting of the internal cross bars 3 and vertical bars 4, the plasticity of the wall is improved, preventing the phenomenon of wall cracking caused by stress concentration in the wall for a long time, and improving the service life of the wall.

[0037] Both the outer surfaces of the first wall panel 1 and the second wall panel 2 are fixedly connected with columnar plates 5; the number of the columnar plates 5 is two and they are symmetrically arranged; on the surfaces of the first wall panel 1 and the second wall panel 2 and on the side close to the columnar plates 5, embedding grooves 6 are opened; on the surfaces of the first wall panel 1 and the second wall panel 2 and on the side far from the columnar plates 5, reinforcing rods 7 are fixedly connected; on the surfaces of the first wall panel 1 and the second wall panel 2 and on the side close to the reinforcing rods 7, clamping grooves 8 are opened; the shapes of the clamping grooves 8 and the columnar plates 5 are adapted to each other; during work, when assembling the first wall panel 1 and the second wall panel 2, the worker inserts the reinforcing rod 7 on the surface of the second wall panel 2 between the columnar plates 5, and then the reinforcing rod 7 will be stuck in the embedding groove 6 on the surface of the first wall panel 1, and the columnar plates 5 on both sides are stuck in the clamping grooves 8 on the surface of the second wall panel 2. At this time, the first wall panel 1 and the second wall panel 2 can be preliminarily fixed, strengthening the connection between adjacent precast wall panels and being beneficial to improving the overall performance between adjacent wall panels.

[0038] On the outer surface of the reinforcing rod 7, a trapezoidal groove 9 is opened; on the inner sides of the first wall panel 1 and the second wall panel 2 and on the side close to the columnar plates 5, sliding grooves 10 are opened; in the first wall panel 1 and the second wall panel 2 and within the sliding grooves 10, U-shaped frames 11 are slidably connected; one end of the U-shaped frame 11 penetrates inside the columnar plate 5; at the end of the U-shaped frame 11 close to the columnar plate 5, an inclined plate 12 is fixedly connected; inside the columnar plate 5, a trapezoidal block 13 is slidably connected; the shape of the trapezoidal block 13 is adapted to the shape of the trapezoidal groove 9; inside the columnar plate 5, a groove adapted to the trapezoidal block 13 is opened; in this embodiment, in the initial state, the trapezoidal block 13 is not stuck inside the trapezoidal groove 9; during work, when the reinforcing rod 7 on the surface of the second wall panel 2 extends into the embedding groove 6, the reinforcing rod 7 will then contact the U-shaped frame 11 in the embedding groove 6 and the sliding groove 10 and squeeze it, causing the U-shaped frame 11 to synchronously drive the inclined plate 12 to move downward. Then, the inclined plate 12 will contact the trapezoidal block 13 and squeeze it. After that, when the first wall panel 1 and the second wall panel 2 are combined with each other, the trapezoidal block 13 will be stuck into the trapezoidal groove 9. At this time, the connection stability between the wall panels is further strengthened, reducing the situation of cracking at the joint between the wall panels, and there is no need for the relatively troublesome operation of using bolts in the prior art, making it more convenient to use.

[0039] On the surface of the reinforcing rod 7, a clamping groove 14 is opened; on the surface of the U-shaped frame 11, a clamping block 15 is fixedly connected; the shapes of the clamping groove 14 and the clamping block 15 are adapted to each other; when the reinforcing rod 7 is completely combined with the U-shaped frame 11, the clamping block 15 will be completely fitted with the clamping groove 14. At this time, the first wall panel 1 and the second wall panel 2 will be completely fitted, facilitating their subsequent use.

[0040] Such as Figures 5 to 7As shown in the figure, receiving grooves 16 are provided on the outer surfaces of the first wall panel 1 and the second wall panel 2; convex grooves 17 are provided inside the first wall panel 1 and the second wall panel 2 and inside the receiving grooves 16; embedding rods 18 are clamped on the outer surfaces of the first wall panel 1 and the second wall panel 2; a rotating column 19 is rotatably connected to the surface of the embedding rod 18; a convex block 20 is fixedly connected to the bottom end of the rotating column 19; the shape of the convex block 20 is adapted to that of the convex groove 17; during operation, after the first wall panel 1 and the second wall panel 2 are connected, the staff holds the embedding rod 18 by hand and inserts the embedding rod 18 and the convex block 20 into the receiving groove 16 and the convex groove 17. After that, the convex blocks 20 at different positions will be respectively stuck inside the convex grooves 17 on the surfaces of the first wall panel 1 and the second wall panel 2. At this time, the connection between the precast wall panels can be improved, and the possibility of fracture at the joint of the wall panels during long-term use can be avoided, which is relatively convenient to use.

[0041] Circular grooves 21 are provided inside the first wall panel 1 and the second wall panel 2 and below the convex grooves 17; the diameter of the circular groove 21 is adapted to the diameter of the convex block 20; during operation, when the convex block 20 extends along the convex groove 17 into the circular groove 21 below it, the rotating column 19 is manually rotated at this time, so that the rotating column 19 drives the convex block 20 at its lower end to rotate. After that, the raised parts at both ends of the convex block 20 will move away from one side of the convex groove 17, and the raised part of the convex block 20 will be stuck in the circular groove 21 below the convex groove 17. At this time, the embedding rod 18, the first wall panel 1 and the second wall panel 2 can be clamped, the service life between the precast wall panels is improved, and the possibility of fracture at the joint between the wall panels is reduced.

[0042] Reinforcing steel wires 22 are wound around the outer surfaces of the cross bar 3 and the vertical bar 4 inside the first wall panel 1 and the second wall panel 2; the reinforcing steel wires 22 are wound in a staggered manner; during operation, when the reinforcing steel wires 22 are wound around the outer surfaces of the cross bar 3 and the vertical bar 4, the plasticity of the wall can be improved.

[0043] As Figure 8 shown, heat preservation boards 23 are fixedly connected to the inside of the first wall panel 1 and the second wall panel 2 and close to one side of the circular groove 21; when the convex block 20 is stuck in the circular groove 21, the convex block 20 will press against the surface of the heat preservation board 23, giving a certain supporting force to the heat preservation board 23, reducing the phenomenon of deformation of the heat preservation board 23 during long-term use, and improving the heat preservation performance of the precast wall panel.

[0044] A glass wool layer is filled inside the heat preservation board 23; and an aluminum foil is wrapped around the outer wall of the glass wool layer; the outer wall of the glass wool layer is wrapped with aluminum foil, which can increase the sealing performance and avoid the phenomenon of water seepage in the wall.

[0045] Embodiment 2

[0046] As Figure 9As shown, compared with the first comparative example, another implementation manner of the present invention is as follows: An extruded polystyrene board 24 is sleeved on the outer surface of the thermal insulation board 23; the length of the extruded polystyrene board 24 is greater than that of the thermal insulation board 23; the extruded polystyrene board 24 is a closed-cell bubble structure and is a thermal insulation material with many advantages such as moisture resistance, compression resistance, corrosion resistance, light weight, low water absorption, anti-aging, and low thermal conductivity.

[0047] During operation, when using this wall panel, horizontal bars 3 and vertical bars 4 are arranged in a staggered manner inside each wall panel. Concrete can be poured and fixed between the horizontal bars 3 and vertical bars 4 of the wall panel to reinforce the strength of the entire wall and ensure the wall quality. With the arrangement of the internal horizontal bars 3 and vertical bars 4, the plasticity of the wall is improved, preventing the phenomenon of wall cracking caused by stress concentration in the wall over a long time and increasing the service life of the wall. When assembling the first wall panel 1 and the second wall panel 2, the staff inserts the reinforcing bars 7 on the surface of the second wall panel 2 along the columnar plates 5. Then, the reinforcing bars 7 will be stuck in the embedding grooves 6 on the surface of the first wall panel 1, and the columnar plates 5 on both sides are stuck in the card slots 8 on the surface of the second wall panel 2. At this time, the first wall panel 1 and the second wall panel 2 can be preliminarily fixed, strengthening the connection between adjacent precast wall panels and being beneficial to improving the overall performance between adjacent wall panels. When the reinforcing bars 7 on the surface of the second wall panel 2 extend into the embedding grooves 6, the reinforcing bars 7 will then contact and squeeze the U-shaped frames 11 in the embedding grooves 6 and the sliding grooves 10, causing the U-shaped frames 11 to synchronously drive the inclined plates 12 to move downward. Then, the inclined plates 12 will contact and squeeze the trapezoidal blocks 13. After that, when the first wall panel 1 and the second wall panel 2 are combined with each other, the trapezoidal blocks 13 will be stuck into the trapezoidal grooves 9. At this time, the connection stability between the wall panels is further strengthened, reducing the possibility of cracking at the joints between the wall panels and eliminating the relatively troublesome operation of using bolts for fastening in the prior art, making it more convenient to use.

[0048] When the reinforcing bars 7 are completely combined with the U-shaped frames 11, the clamping blocks 15 will completely fit with the clamping grooves 14. At this time, the first wall panel 1 and the second wall panel 2 will completely fit together, facilitating their subsequent use. After the first wall panel 1 and the second wall panel 2 are connected, the staff holds the embedding rod 18 and inserts the embedding rod 18 and the convex blocks 20 along the receiving grooves 16 and the convex grooves 17. Then, the different convex blocks 20 will be respectively stuck inside the convex grooves 17 on the surfaces of the first wall panel 1 and the second wall panel 2. At this time, the connection between the precast wall panels can be improved, avoiding the possibility of fracture at the joints of the wall panels during long-term use, and making it more convenient to use.

[0049] When the bump 20 extends into the circular groove 21 below it along the convex groove 17, manually rotate the rotating column 19 at this time, so that the rotating column 19 drives the bump 20 at its lower end to rotate. After that, the protrusions at both ends of the bump 20 will move away from one side of the convex groove 17, and the protrusions of the bump 20 will be stuck in the circular groove 21 below the convex groove 17. At this time, the embedding rod 18, the first wall panel 1 and the second wall panel 2 can be clamped, improving the service life between the precast wall panels and reducing the possibility of fracture at the connection between the wall panels; Reinforcing steel wires 22 are wound on the outer surfaces of the cross bar 3 and the vertical bar 4, which can improve the plasticity of the wall; When the bump 20 is stuck in the circular groove 21, the bump 20 will press against the surface of the insulation board 23, giving a certain supporting force to the insulation board 23 and reducing the phenomenon of deformation of the insulation board 23 during long-term use, which can improve the insulation performance of the precast wall panel.

[0050] The interior of the insulation board 23 is filled with a glass wool layer; and the outer wall of the glass wool layer is wrapped with aluminum foil; The outer wall of the glass wool layer is wrapped with aluminum foil, which can increase the sealing performance and avoid the phenomenon of water seepage in the wall; The extruded polystyrene board 24 is a closed-cell structure and is a thermal insulation material with many advantages such as moisture resistance, compression resistance, corrosion resistance, light weight, low water absorption, anti-aging and low thermal conductivity.

[0051] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields are all included in the patent protection scope of the present invention.

Claims

1. An anti-cracking structure for a steel structure prefabricated wall, characterized in that: It includes a first wall panel and a second wall panel; a cross bar is fixedly connected inside both the first wall panel and the second wall panel; a vertical bar is fixedly connected inside both the first wall panel and the second wall panel; the number of cross bars and vertical bars is set to be multiple, and the cross bars and vertical bars are arranged in a staggered manner; the materials of the cross bars and vertical bars are both stainless steel; Columnar plates are fixedly connected to the outer surfaces of the first wall panel and the second wall panel; the number of columnar plates is two and they are symmetrically arranged; embedding grooves are opened on the surfaces of the first wall panel and the second wall panel and on the side close to the columnar plates; reinforcing bars are fixedly connected to the surfaces of the first wall panel and the second wall panel and on the side far from the columnar plates; clamping grooves are opened on the surfaces of the first wall panel and the second wall panel and on the side close to the reinforcing bars; the shapes of the clamping grooves and the columnar plates are adapted to each other; A trapezoidal groove is opened on the outer surface of the reinforcing bar; sliding grooves are opened inside the first wall panel and the second wall panel and on the side close to the columnar plates; U-shaped frames are slidably connected inside the first wall panel and the second wall panel and within the sliding grooves; one end of the U-shaped frame penetrates inside the columnar plate; an inclined plate is fixedly connected to the end of the U-shaped frame close to the columnar plate; a trapezoidal block is slidably connected inside the columnar plate; the shape of the trapezoidal block is adapted to the shape of the trapezoidal groove; a groove adapted to the trapezoidal block is opened inside the columnar plate; A clamping groove is opened on the surface of the reinforcing bar; a clamping block is fixedly connected to the surface of the U-shaped frame; the shapes of the clamping groove and the clamping block are adapted to each other; when the reinforcing bar is completely combined with the U-shaped frame, the clamping block will be completely attached to the clamping groove.

2. An anti-cracking structure for a steel structure prefabricated wall according to claim 1, characterized in that: Receiving grooves are opened on the outer surfaces of the first wall panel and the second wall panel; convex grooves are opened inside the first wall panel and the second wall panel and within the receiving grooves; embedding rods are snap-connected to the outer surfaces of the first wall panel and the second wall panel; a rotating column is rotatably connected to the surface of the embedding rod; a convex block is fixedly connected to the bottom end of the rotating column; the shape of the convex block is adapted to the shape of the convex groove.

3. An anti-cracking structure for a steel structure prefabricated wall according to claim 2, characterized in that: Circular grooves are opened inside the first wall panel and the second wall panel and below the convex grooves; the diameter of the circular groove is adapted to the diameter of the convex block.

4. An anti-cracking structure for a steel structure prefabricated wall according to claim 1, characterized in that: Reinforcing steel wires are wound around the outer surfaces of the cross bars and vertical bars inside the first wall panel and the second wall panel; the reinforcing steel wires are wound in a staggered manner.

5. An anti-cracking structure for a steel structure prefabricated wall according to claim 3, characterized in that: Heat preservation boards are fixedly connected inside the first wall panel and the second wall panel and on the side close to the circular grooves.

6. An anti-cracking structure for a steel structure prefabricated wall according to claim 4, characterized in that: A glass wool layer is filled inside the heat preservation board; and the outer wall of the glass wool layer is wrapped with aluminum foil.

7. An anti-cracking structure for a steel structure prefabricated wall according to claim 4, characterized in that: An extruded polystyrene board is sleeved on the outer surface of the heat preservation board; the length of the extruded polystyrene board is greater than the length of the heat preservation board.

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