Improved anchor bolt and outer wall reinforcing structure for repairing and reconstructing and reinforcing building outer wall

Abstract

The utility model discloses an improved type anchor bolt and outer wall reinforcing structure for building outer wall repair reconstruction reinforcement, the anchor bolt includes anchor bolt main part, the anchor bolt main part includes the outer pressure piece, be connected with the expansion sleeve pipe on the outer pressure piece, the inside of expansion sleeve pipe is hollow structure, the one end of expansion sleeve pipe away from the outer pressure piece is equipped with the guide head of taper, the lateral surface of expansion sleeve pipe is equipped with the telescopic gap of axial, the side of expansion sleeve pipe is equipped with a plurality of annular grooves close to the guide head, the stainless steel net is fixed on the wall body, and the anchor bolt expansion sleeve pipe generates the friction holding force through the mechanical expansion, and reaches the fixed effect, the anchor bolt main part is equipped with the outer pressure piece, and the outer pressure piece can better fix the stainless steel net on the wall body, forms the net anchor integration, effectively reinforces the old wall body decorative layer, avoids the wall surface and continues to fall off.

Description

Technical Field

[0001] This utility model relates to the technical field of building engineering, and in particular to an improved anchor bolt and an external wall reinforcement structure for the repair, renovation and reinforcement of building exterior walls. Background Technology

[0002] The exterior walls of many high-rise residential and commercial buildings in the city have cracked and hollowed out after years of use and continuous erosion by the natural environment, which causes serious problems such as water seepage and peeling.

[0003] Cracks and hollow areas in the wall surface can damage the integrity and waterproof barrier of the exterior wall. Once it rains or the air humidity is high, rainwater will seep into the interior of the wall through the cracks and hollow areas. This not only affects the living and use experience, but also erodes the wall structure layer in the long term, reducing the safety and durability of the building structure. In addition, the exterior wall finish may also fall off in whole pieces, creating a hazard of falling objects from a height and threatening the personal safety of pedestrians below. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing an improved anchor bolt and external wall reinforcement structure for the repair, renovation and reinforcement of building exterior walls, which can solve the above problems.

[0005] To achieve the above objectives, this utility model proposes an improved anchor bolt for the repair, renovation, and reinforcement of building exterior walls. The anchor bolt includes an anchor bolt body, which includes an outer pressure plate. An expansion sleeve is connected to the outer pressure plate. The expansion sleeve has a hollow internal structure. A tapered guide head is provided at one end of the expansion sleeve away from the outer pressure plate. An axial expansion slit is provided on the side of the expansion sleeve. Several annular grooves are provided on the side of the expansion sleeve near the guide head.

[0006] Preferably, the expansion sleeve has a reinforcing groove on the side away from the telescopic slit, and a barb is provided on the reinforcing groove. One end of the barb near the guide head is fixed to the expansion sleeve, and the other end protrudes from the outside of the expansion sleeve.

[0007] Preferably, the outer pressure plate has several circular holes on its outer side.

[0008] Preferably, the circular holes are arranged in a ring shape.

[0009] Preferably, the reinforcing groove is formed within the range of one-half to two-thirds of the length of the expansion sleeve.

[0010] Preferably, the expansion sleeve and the outer pressure plate are made of stainless steel, galvanized steel or aluminum.

[0011] This utility model also proposes an external wall reinforcement structure, including a wall body, an insulation layer on the outer surface of the wall body, a polymer mortar plastering layer on the outer surface of the insulation layer, a coating layer on the outer surface of the polymer mortar plastering layer, a stainless steel mesh on the outer surface of the coating layer, the stainless steel mesh being fixed by a plurality of anchor bolts, the expansion sleeves of the anchor bolts penetrating into the wall body, an adhesive layer being coated on the surface of the stainless steel mesh, and an outer surface layer being provided on the surface of the adhesive layer.

[0012] This utility model also proposes another external wall reinforcement structure, including a wall body, the outer surface of which is provided with a plaster layer, the outer surface of which is provided with a decorative layer, the outer surface of which is covered with a stainless steel mesh, the stainless steel mesh being fixed by a plurality of anchor bolts, the expansion sleeves of which penetrate into the wall body, the surface of which is coated with an adhesive layer, and the surface of which is provided with an outer surface layer; the decorative layer is a brick or mosaic layer.

[0013] Preferably, the adhesive layer is formed by applying an inorganic polymer mortar.

[0014] The adhesive layer is applied to the finishing layer or the repair layer after repairing defects in the finishing layer, with a stainless steel mesh sandwiched in the middle. It serves to prevent cracking, waterproofing, and impact resistance, and also has a certain fireproofing effect.

[0015] Preferably, the outer diameter of the outer pressure plate is larger than the mesh size of the stainless steel mesh.

[0016] The beneficial effects of this utility model are as follows: This utility model fixes the stainless steel mesh to the wall. The anchor expansion sleeve generates frictional gripping force through mechanical expansion, achieving a fixing effect. The anchor body is equipped with an outer pressure plate, which can better fix the stainless steel mesh to the wall, forming a mesh-anchor integration, effectively reinforcing the old wall decoration layer and preventing further wall peeling. The barbs on the anchor body can prevent the anchor from coming out after installation, further tightening the installation.

[0017] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of Embodiment 1 of this utility model; Figure 2 This is a cross-sectional schematic diagram of Embodiment 1 of this utility model; Figure 3 This is a structural schematic diagram of Embodiment 2 of this utility model; Figure 4 This is a cross-sectional schematic diagram of Embodiment 2 of this utility model; Figure 5This is a schematic diagram of the installation of the external pressure plate of this utility model; Figure 6 This is a schematic diagram of the structure of Embodiment 3 of this utility model; Figure 7 This is a schematic diagram of the structure of Embodiment 4 of this utility model.

[0019] In the diagram: 1. External pressure plate; 2. Expansion sleeve; 3. Guide head; 4. Expansion joint; 5. Annular groove; 6. Reinforcing groove; 7. Barb; 8. Through hole; 10. Anchor bolt body; 11. Wall; 12. Insulation layer; 13. Polymer mortar plaster layer; 14. Coating layer; 15. Stainless steel mesh; 16. Adhesive layer; 17. Outer surface layer; 21. Plaster layer; 22. Finishing layer. Detailed Implementation

[0020] Example 1: See Figure 1 , Figure 2 , Figure 5 An improved anchor bolt for the repair, renovation and reinforcement of building exterior walls includes an anchor bolt body 10, the anchor bolt body 10 includes an outer pressure plate 1, an expansion sleeve 2 connected to the outer pressure plate 1, the expansion sleeve 2 has a hollow internal structure, a tapered guide head 3 is provided at the end of the expansion sleeve 2 away from the outer pressure plate 1, an axial expansion slit 4 is provided on the side of the expansion sleeve 2, and several annular grooves 5 are provided on the side of the expansion sleeve 2 near the guide head 3.

[0021] Example 2 See Figure 3 , Figure 4 , Figure 5 The expansion sleeve 2 has a reinforcing groove 6 on the side away from the telescopic opening, and a barb 7 is provided on the reinforcing groove 6. One end of the barb 7 near the guide head 3 is fixed to the expansion sleeve 2, and the other end protrudes from the outside of the expansion sleeve 2.

[0022] The reinforcing groove 6 is located within the range of one-half to two-thirds of the length of the expansion sleeve 2.

[0023] Both the expansion sleeve 2 and the outer pressure plate 1 are made of stainless steel, galvanized steel, or aluminum.

[0024] The anchor bolt body 10 is made of metal.

[0025] The barbed plate 7 has a trapezoidal structure.

[0026] The outer pressure plate 1 has several through holes 8 on its outer side.

[0027] Everything else is the same as in Example 1.

[0028] Example 3 See Figure 6 An external wall reinforcement structure includes a wall 11, an insulation layer 12 on the outer surface of the wall 11, a polymer mortar plastering layer 13 on the outer surface of the insulation layer 12, a coating layer 14 on the outer surface of the polymer mortar plastering layer, a stainless steel mesh 15 on the outer surface of the coating layer 14, the stainless steel mesh 15 being fixed by a plurality of anchor bolts, the expansion sleeves 2 of the anchor bolts penetrating into the wall 11, an adhesive layer 16 being coated on the surface of the stainless steel mesh 15, and an outer surface layer 17 being provided on the surface of the adhesive layer 16.

[0029] The outer surface layer 17 is a putty coating layer.

[0030] The adhesive layer 16 is formed by applying inorganic polymer mortar and has properties such as crack resistance and waterproofing.

[0031] The outer diameter of the outer pressure plate 1 is larger than the mesh size of the stainless steel mesh 15.

[0032] Example 4 See Figure 7 An exterior wall reinforcement structure includes a wall 11, the outer surface of the wall 11 is provided with a plaster layer 21, the outer surface of the plaster layer 21 is provided with a finishing layer 22, the outer surface of the finishing layer 22 is covered with a stainless steel mesh 15, the stainless steel mesh 15 is fixed by a plurality of anchor bolts, the expansion sleeve 2 of the anchor bolts penetrates into the wall 11, the surface of the stainless steel mesh 15 is coated with an adhesive layer 16, and the surface of the adhesive layer 16 is provided with an outer surface layer 17.

[0033] The adhesive layer 16 is formed by applying inorganic polymer mortar.

[0034] The finishing layer 22 is a tile or mosaic layer.

[0035] Everything else is the same as in Example 3.

[0036] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. An improved anchor bolt for the repair, renovation, and reinforcement of building exterior walls, characterized in that: The anchor bolt body (10) includes an outer pressure plate (1) connected to an expansion sleeve (2). The expansion sleeve (2) has a hollow structure inside. A tapered guide head (3) is provided at one end of the expansion sleeve (2) away from the outer pressure plate (1). An axial expansion slit (4) is provided on the side of the expansion sleeve (2). Several annular grooves (5) are provided on the side of the expansion sleeve (2) near the guide head (3).

2. The improved anchor bolt for the repair, renovation, and reinforcement of building exterior walls as described in claim 1, characterized in that: The expansion sleeve (2) has a reinforcing groove (6) on the side away from the telescopic slit (4). The reinforcing groove (6) has a barb (7). One end of the barb (7) near the guide head (3) is fixed on the expansion sleeve (2), and the other end protrudes on the outside of the expansion sleeve (2).

3. The improved anchor bolt for the repair, renovation, and reinforcement of building exterior walls as described in claim 1 or 2, characterized in that: The outer pressure plate (1) has several through holes (8) on its outer side.

4. The improved anchor bolt for the repair, renovation, and reinforcement of building exterior walls as described in claim 2, characterized in that: The reinforcing groove (6) is located within the range of one-half to two-thirds of the length of the expansion sleeve (2).

5. The improved anchor bolt for the repair, renovation, and reinforcement of building exterior walls as described in claim 1 or 2, characterized in that: The expansion sleeve (2) and the outer pressure plate (1) are both made of stainless steel, galvanized steel or aluminum.

6. An external wall reinforcement structure, characterized in that: The wall (11) includes an insulation layer (12) on its outer surface, a polymer mortar plastering layer (13) on its outer surface, a coating layer (14) on its outer surface, a stainless steel mesh (15) on its outer surface, the stainless steel mesh (15) being fixed by anchors as described in any one of claims 1 to 5, the expansion sleeve (2) of the anchors penetrating into the wall (11), the surface of the stainless steel mesh (15) being coated with an adhesive layer (16), and the surface of the adhesive layer (16) being provided with an outer surface layer (17).

7. An external wall reinforcement structure, characterized in that: The wall (11) includes a plaster layer (21) on its outer surface, a finishing layer (22) on its outer surface, a stainless steel mesh (15) on its outer surface, the stainless steel mesh (15) being fixed by anchors as described in any one of claims 1 to 5, the expansion sleeve (2) of the anchors penetrating into the wall (11), the surface of the stainless steel mesh (15) being coated with an adhesive layer (16), and the surface of the adhesive layer (16) being provided with an outer surface layer (17).

8. The external wall reinforcement structure as described in claim 6 or 7, characterized in that: The adhesive layer (16) is formed by applying inorganic polymer mortar.

9. The external wall reinforcement structure as described in claim 6 or 7, characterized in that: The outer diameter of the outer pressure plate (1) is larger than the mesh diameter of the stainless steel mesh (15).

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