Concrete anti-cracking structure

Abstract

The utility model provides a concrete anti-crack structure which comprises a concrete structure layer, reinforcing steel bars are fixedly connected in the concrete structure layer, nanometer silicon concrete protective coatings are coated on the two sides of the concrete structure layer, a heat preservation layer is fixedly connected to the surface of the concrete structure layer, and the nanometer silicon concrete protective coatings are coated on the surface of the heat preservation layer. A spraying foam layer is arranged between the heat preservation layer and the nanometer silicon concrete protective coating, a plurality of connecting holes are formed in the heat preservation layer, sealing plugs are connected to the connecting holes, and sealing structures are arranged between the sealing plugs and the connecting holes, so that reinforcing steel bars are not prone to corrosion, and the anti-cracking purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the field of concrete, in particular to a concrete anti-cracking structure. Background Art

[0002] At present, a Chinese patent with authorization announcement number CN217601814U discloses an anti-cracking concrete layer structure, including a polymer cement coating, a waterproof adhesive layer is fixedly connected to the bottom of the polymer cement coating, a glass wool insulation layer is fixedly connected to the bottom of the waterproof adhesive layer, a concrete structure layer is fixedly connected to the bottom of the glass wool insulation layer, a rubber sealing layer is fixedly connected to the inside of the concrete structure layer, an anti-cracking structure is fixedly connected to the inside of the rubber sealing layer, and a support ball is fixedly connected to the outside of the anti-cracking structure.

[0003] In this anti-crack concrete layer structure, when the concrete structure layer expands due to the external environment, it squeezes the rubber sealing layer, and the rubber sealing layer drives the sliding rod and the support seat to squeeze the spring block, so that the concrete structure layer has a certain movement space when it expands, and has an excellent anti-crack function. However, because the polymer cement coating, waterproof adhesive layer, and glass wool insulation layer are arranged on one side of the concrete structure layer, when it is used as a wall, the other side of the concrete structure layer does not have a protective layer structure, and the steel bars in the concrete structure layer are corroded by carbon dioxide, which will cause the steel bars to rust and expand in volume, causing the concrete structure layer to expand and crack from the inside. Utility Model Content

[0004] In view of this, the utility model aims to provide a concrete anti-cracking structure to achieve the purpose of not being easy to crack.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a concrete anti-cracking structure, including a concrete structure layer, steel bars are fixedly connected in the concrete structure layer, both sides of the concrete structure layer are coated with nano-silicon concrete protective coating, an insulation layer is fixedly connected to the surface of the concrete structure layer, a spray foam layer is provided between the insulation layer and the nano-silicon concrete protective coating, a plurality of connection holes are opened on the insulation layer, sealing plugs are connected to the connection holes, and a sealing structure is provided between the sealing plugs and the connection holes.

[0006] To implement the above technical solution, the nano-silicon concrete protective coating is applied on the surface of the concrete structure layer. The nano-silicon concrete protective coating has the following characteristics: Permeability: the small molecular silane in the nano-organic silicon coating can penetrate the concrete surface, penetrate into the concrete, and react with the water molecules inside the concrete; Chemical reaction: Silane undergoes hydrolysis and dealcoholization reaction with the water molecules inside the concrete to generate hydroxy silane, which continues to react to remove water molecules and condense to form silicone resin; Binding force: the generated silicone resin has a strong binding force and can firmly grasp the concrete to form a solid protective layer; Water repellency: a water-repellent layer is formed on the surface of the treated concrete, which can inhibit moisture from entering the substrate, thereby effectively Prevent corrosion of concrete and internal steel structures by water seepage, acid rain, seawater, etc.; Air permeability: The nano-organic silicon coating has good air permeability, which allows the concrete to maintain a one-way breathing function. Even if the surface is hydrophobic, the concrete can still maintain its air permeability; Based on the above five characteristics, the nano-organic silicon concrete protective coating not only improves the durability of concrete, but also effectively protects the steel bars from corrosion, prolongs the service life of the concrete structure layer, and makes the concrete structure layer less likely to crack; fix the insulation layer on the concrete structure layer to improve the thermal insulation of the building, fill the spray foam layer in the gap between the concrete structure layer and the insulation layer through the connecting hole to further improve the thermal insulation, and finally seal the connecting hole with a sealing plug.

[0007] As a preferred solution of the utility model, the sealing structure includes a positioning tube and a positioning column. The positioning tube is fixed on the inner wall of the connecting hole, one end of the positioning column is fixed on the sealing plug, the cross-section of the sealing plug is trapezoidal, and the positioning column is threadedly connected to the positioning tube.

[0008] To implement the above technical solution, the spray foam layer is filled in the gap between the concrete structure layer and the insulation layer through the positioning tube, and then the positioning column is threadedly connected to the positioning tube. Since the cross-section of the sealing plug is trapezoidal, the sealing plug can be tightly pressed against the inner wall of the connecting hole, thereby achieving better sealing performance.

[0009] As a preferred solution of the utility model, the interior of the concrete structure layer has a placement cavity, and an anti-cracking structure is arranged in the placement cavity.

[0010] By implementing the above technical solution, when the concrete structure layer expands due to the external environment, the anti-cracking structure can provide good support for the concrete structure layer, so that the concrete structure layer is not prone to cracking.

[0011] As a preferred scheme of the utility model, the anti-crack structure includes a top plate, a bottom plate, a slide groove, a support plate, and a fixed plate. The top plate and the bottom plate are respectively fixed at two ends of the placement cavity. The cross-section of the slide groove is circular. The slide groove is provided on the opposite sides of the top plate and the bottom plate. Both ends of the fixed plate are fixed in the slide groove. A plurality of fixed plates are evenly distributed along the axis of the slide groove. The support plate is slidably connected in the slide groove. The outer wall of the support plate contacts the inner wall of the placement cavity. A guide groove is provided on the side wall of the support plate. The side wall of the fixed plate is fixedly connected with a guide plate. The guide plate is slidably connected in the guide groove. The support plate and the fixed plate are spaced apart. The fixed plate, the support plate, the top plate and the bottom plate form an anti-crack cavity.

[0012] To implement the above technical solution, when the concrete structure layer expands due to the external environment, the inner wall of the placement cavity exerts pressure on the support plate, and the support plate moves along the radial direction of the slide groove toward the anti-crack cavity. The guide plate is bent and further extends into the guide groove. The elastic force of the guide plate itself produces a supporting effect on the support plate to resist the deformation of the placement cavity, making the concrete structure layer less likely to crack.

[0013] As a preferred solution of the utility model, the anti-crack structure further comprises an elastic member, the elastic member is located in the anti-crack cavity, and two ends of the elastic member are respectively fixedly connected to the fixing plate and the supporting plate.

[0014] To implement the above technical solution, the provision of the elastic member further enhances the supporting force of the support plate, so that the concrete structure layer is less likely to crack.

[0015] As a preferred solution of the utility model, a water pipe is fixedly connected to the concrete structure layer, a branch pipe is connected to the water pipe, and the branch pipe passes through the insulation layer.

[0016] By implementing the above technical solution, water can easily flow through the water pipes and branch pipes.

[0017] As a preferred solution of the utility model, a sound insulation felt is fixedly connected to the outer wall of the branch pipe.

[0018] Implementing the above technical solution can improve the sound insulation effect of the branch pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure in the embodiment;

[0020] Figure 2 A cross-sectional schematic diagram showing a sealing structure;

[0021] Figure 3 A schematic diagram showing the anti-crack structure;

[0022] Figure 4A schematic diagram showing the position of the elastic member;

[0023] Figure 5 A schematic diagram showing the structure of the base plate.

[0024] Figure numerals: 1. concrete structure layer; 10. steel bar; 11. nano-silicon concrete protective coating; 2. thermal insulation layer; 21. spray foam layer; 22. connection hole; 3. sealing structure; 31. positioning tube; 32. positioning column; 4. sealing plug; 51. water pipe; 52. branch pipe; 53. sound insulation felt; 6. placement cavity; 7. anti-crack structure; 71. top plate; 72. bottom plate; 73. slide groove; 74. support plate; 75. fixing plate; 81. guide groove; 82. guide plate; 9. elastic member. DETAILED DESCRIPTION

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0026] A concrete anti-cracking structure 7 includes a concrete structure layer 1, a steel bar 10 is fixedly connected in the concrete structure layer 1, and a nano-silicon concrete protective coating 11 is coated on both sides of the concrete structure layer 1. The nano-silicon concrete protective coating 11 is NanoSlic NS-200 Coating produced by NanoSlic Coatings.

[0027] The surface of the concrete structure layer 1 is fixedly connected with an insulation layer 2 by rivets. The insulation layer 2 is a rigid foam board. The insulation layer 2 is provided with a plurality of connection holes 22, and the spray foam layer 21 is injected into the gap between the insulation layer 2 and the nano-silicon concrete protective coating 11 through the connection holes 22.

[0028] A sealing plug 4 is connected to the connection hole 22, and a sealing structure 3 is provided between the sealing plug 4 and the connection hole 22. The sealing structure 3 includes a positioning tube 31 and a positioning column 32. The positioning tube 31 is fixed to the inner wall of the connection hole 22 by glue, and one end of the positioning column 32 is fixed to the sealing plug 4. The cross section of the sealing plug 4 is trapezoidal. The positioning column 32 is threadedly connected to the positioning tube 31, so that the sealing plug 4 is tightly pressed against the inner wall of the connection hole 22.

[0029] A water pipe 51 is fixedly connected to the concrete structure layer 1, and a branch pipe 52 is connected to the water pipe 51, and the branch pipe 52 is connected to the water pipe 51. The branch pipe 52 passes through the insulation layer 2. A sound insulation felt 53 is fixedly connected to the outer wall of the branch pipe 52. The sound insulation felt 53 is made of virgin rubber and iron powder.

[0030] A cylindrical placement cavity 6 is provided inside the concrete structure layer 1, and an anti-cracking structure 7 is provided inside the placement cavity 6. The concrete structure layer 1 is placed vertically as a wall, and the placement cavity 6 is also arranged vertically.

[0031] The anti-crack structure 7 includes a top plate 71, a bottom plate 72, a chute 73, a support plate 74, and a fixed plate 75. The top plate 71 and the bottom plate 72 are both disc-shaped and are respectively fixed to the two ends of the placement cavity 6. The chute 73 is annular, and the top plate 71 and the bottom plate 72 are both provided with the chute 73 on the opposite side. Both ends of the fixed plate 75 are fixed in the chute 73, and a plurality of fixed plates 75 are evenly distributed along the axis of the chute 73.

[0032] The support plate 74 is slidably connected to the slide groove 73, and the outer wall of the support plate 74 contacts the inner wall of the placement cavity 6. An arc-shaped guide groove 81 is provided on the side wall of the support plate 74, and a guide plate 82 is fixedly connected to the side wall of the fixed plate 75, and the guide plate 82 is slidably connected to the guide groove 81. The support plate 74 and the fixed plate 75 are arranged at intervals. The fixed plate 75, the support plate 74, the top plate 71 and the bottom plate 72 surround an anti-crack cavity. The guide plate 82 is straight.

[0033] The elastic member 9 is located in the anti-crack cavity, and two ends of the elastic member 9 are respectively fixedly connected to the fixing plate 75 and the supporting plate 74. The elastic member 9 is a spring.

[0034] In order to further improve the anti-cracking effect, a rubber sleeve may be coated on the outside of the anti-cracking structure 7 .

[0035] When the external environment expands, both sides of the concrete structure layer 1 will be subjected to pressure, and the support plate 74 will move toward the middle of the anti-crack cavity due to the pressure of the placement cavity 6. The guide plate 82 is bent and slidably connected in the guide groove 81. The toughness and certain elasticity of the guide plate 82 itself exert a supporting force on the inner wall of the guide groove 81, so that the support plate 74 resists the pressure of the placement cavity 6. At the same time, the elastic member 9 can further enhance the supporting force, thereby achieving the purpose of anti-cracking.

[0036] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A concrete anti-cracking structure (7), comprising a concrete structure layer (1), wherein a steel bar (10) is fixedly connected to the concrete structure layer (1), wherein: Both sides of the concrete structure layer (1) are coated with a nano-silicon concrete protective coating (11); a thermal insulation layer (2) is fixedly connected to the surface of the concrete structure layer (1); a spray foam layer (21) is provided between the thermal insulation layer (2) and the nano-silicon concrete protective coating (11); a plurality of connection holes (22) are provided on the thermal insulation layer (2); sealing plugs (4) are connected to the connection holes (22); and a sealing structure (3) is provided between the sealing plugs (4) and the connection holes (22).

2. A concrete anti-cracking structure (7) according to claim 1, characterized in that: The sealing structure (3) comprises a positioning tube (31) and a positioning column (32); the positioning tube (31) is fixed to the inner wall of the connecting hole (22); one end of the positioning column (32) is fixed to the sealing plug (4); the cross section of the sealing plug (4) is trapezoidal; the positioning column (32) is threadedly connected to the positioning tube (31).

3. A concrete anti-cracking structure (7) according to claim 1 or 2, characterized in that: The concrete structure layer (1) has a placement cavity (6) inside, and an anti-cracking structure (7) is arranged inside the placement cavity (6).

4. A concrete anti-cracking structure (7) according to claim 3, characterized in that: The anti-crack structure (7) comprises a top plate (71), a bottom plate (72), a slide groove (73), a support plate (74), and a fixed plate (75); the top plate (71) and the bottom plate (72) are respectively fixed to the two ends of the placement cavity (6); the cross section of the slide groove (73) is circular; the slide groove (73) is provided on the opposite sides of the top plate (71) and the bottom plate (72); the two ends of the fixed plate (75) are fixed in the slide groove (73); and a plurality of the fixed plates (75) are evenly distributed along the axis of the slide groove (73). The support plate (74) is slidably connected to the slide groove (73), the outer wall of the support plate (74) is in contact with the inner wall of the placement cavity (6), a guide groove (81) is provided on the side wall of the support plate (74), a guide plate (82) is fixedly connected to the side wall of the fixed plate (75), and the guide plate (82) is slidably connected to the guide groove (81), the support plate (74) and the fixed plate (75) are spaced apart, and the fixed plate (75), the support plate (74), the top plate (71) and the bottom plate (72) form an anti-crack cavity.

5. A concrete anti-cracking structure (7) according to claim 4, characterized in that: The anti-crack structure (7) further comprises an elastic member (9), wherein the elastic member (9) is located in the anti-crack cavity, and the two ends of the elastic member (9) are respectively fixedly connected to the fixing plate (75) and the supporting plate (74).

6. The concrete anti-cracking structure (7) according to claim 1 is characterized in that: A water pipe (51) is fixedly connected to the concrete structure layer (1), a branch pipe (52) is connected to the water pipe (51), and the branch pipe (52) passes through the thermal insulation layer (2).

7. A concrete anti-cracking structure (7) according to claim 6, characterized in that: A sound insulation felt (53) is fixedly connected to the outer wall of the branch pipe (52).

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