A net-like reinforcing structure for wall cracks
By using an overlapping design of inner and outer tensile steel wire mesh, combined with horizontal bars and vertical edge fixing strips, the problems of insufficient tensile strength and concrete overflow at wall cracks are solved, achieving a more efficient repair and reinforcement effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HOLDLAND CONSTR
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-02
AI Technical Summary
Existing mesh reinforcement structures suffer from insufficient tensile strength at wall cracks and are prone to concrete spillage.
The inner wire mesh and the outer tensile wire mesh are used in combination, along with horizontal bar units and vertical edge fixing strip units, to provide tensile protection and prevent concrete from overflowing.
It improves the tensile strength at wall cracks, prevents concrete spillage, and enhances the stability and structural strength of repair and reinforcement.
Smart Images
Figure CN224314659U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of wall repair technology, and in particular relates to a mesh reinforcement structure that can be used for wall cracks. Background Technology
[0002] Generally, wall cracks mainly include two types: surface cracks and structural cracks. The repair and reinforcement methods for the aforementioned surface cracks mainly involve repairing the plaster layer. During this process, materials such as fiberglass mesh and plastic mesh can be used to reinforce the plaster layer.
[0003] The aforementioned mesh reinforcement structure is used to repair cracks in the reinforced structure. When a concrete or brick wall cracks, the mesh reinforcement structure covers the crack and is fixed on both sides of the crack. Then, concrete is poured into the crack, and finally, a plaster layer is applied to cover the entire mesh reinforcement structure, thus completing the entire repair and reinforcement operation.
[0004] On the other hand, when using the aforementioned mesh reinforcement structure at cracks in brick walls, concrete can be omitted because the internal cavity volume of brick walls is relatively large, and the reinforcement effect after concrete pouring is not obvious. Therefore, this requires the mesh reinforcement structure itself to provide relatively greater tensile strength.
[0005] For example, Chinese utility model patent with authorization announcement number CN212154239U and authorization announcement date of 2020.12.15 discloses a reinforcement structure for cracks in masonry walls, which mainly includes: wall, crack, through hole, Z-shaped tie bar, fixing rod, reinforcement mesh, and cement mortar.
[0006] The reinforcement structure in this utility model patent has the following advantages: simple construction, high efficiency, accelerated construction progress, and low project cost.
[0007] However, in actual construction and use, this reinforcement structure still suffers from at least the following shortcomings in practicality and safety, specifically including:
[0008] First, the connection between the reinforcing mesh and the wall can only be provided by the fixed rod. The fixed rod itself is not only easy to break, but also easy to bend and deform, and thus separate from the reinforcing mesh, causing the above-mentioned connection to fail.
[0009] Secondly, the reinforcement mesh structure itself needs to provide tensile strength while preventing the concrete poured into the cracks from overflowing before it is fully cured, which is relatively difficult to achieve. Utility Model Content
[0010] This application provides a mesh reinforcement structure that can be used for wall cracks. The technical problem to be solved is: how to make the mesh reinforcement structure provide relatively large tensile strength at the wall cracks, as well as sufficient concrete spillage prevention effect.
[0011] The technical solution adopted by this application to solve the above problems is: a mesh reinforcement structure that can be used for wall cracks, including an inner wire mesh set on the wall, covering the crack and used to block concrete, an outer tensile wire mesh set on the wall and covering the inner wire mesh, a horizontal bar unit set on the inner wire mesh and located inside the outer tensile wire mesh and used to provide tensile protection for the crack, and a vertical edge fixing strip unit set on the outer tensile wire mesh and used to connect the wall.
[0012] A further preferred technical solution is that the mesh size of the inner wire mesh is smaller than that of the outer tensile wire mesh.
[0013] A further preferred technical solution is that the mesh size of the inner wire mesh is 4mm×4mm.
[0014] A further preferred technical solution is that the crossbar unit includes a tensile crossbar for fixing the inner wire mesh, two fixing rings respectively set at both ends of the tensile crossbar, and mounting nails set on the fixing rings and used for insertion into the wall.
[0015] A further preferred technical solution is that the vertical edge fixing strip unit includes two fixing plates respectively disposed at two vertical side positions on the outer tensile steel wire mesh, fixing holes disposed on the fixing plates, and wall fixing nails disposed on the fixing holes and passing through the outer tensile steel wire mesh.
[0016] A further preferred technical solution is that the crossbar unit further includes a movable ring sleeved on the tensile crossbar, and a structural reinforcing rod disposed on the movable ring and used for insertion into the concrete.
[0017] A further preferred technical solution includes binding wires installed on the two structural reinforcing rods of the two crossbar units located on both sides of the wall.
[0018] A further preferred technical solution is that the tensile crossbar is a square bar, the movable ring is a square ring, and the structural reinforcing bar is arranged laterally.
[0019] A further preferred technical solution is that the crossbar unit further includes an annular groove disposed on the structural reinforcing bar and used to engage and fix the binding wire.
[0020] A further preferred technical solution is that: a single fixing plate is provided with two fixing holes, and the distance between the holes on the two fixing plates is 20-40cm and 50-90cm respectively.
[0021] The beneficial effects of this application include at least the following three points.
[0022] First, the inner wire mesh portion of this mesh reinforcement structure, with its appropriate mesh size and sufficient installation stability, provides ample concrete spillage prevention and auxiliary tensile strength, making the wall crack repair and reinforcement function of this structure more comprehensive and efficient.
[0023] Secondly, in this mesh reinforcement structure, the vertical edge fixing strip unit can provide sufficient linear installation reinforcement effect for the outer tensile steel wire mesh, so that the latter can provide sufficient tensile force to the crack and prevent the outer tensile steel wire mesh from separating from the wall.
[0024] Third, the crossbar unit can not only securely install the inner wire mesh, but also strengthen the structural strength of the repair strip formed after the concrete has cured. Attached Figure Description
[0025] Figure 1 This is a schematic diagram illustrating how this application is used.
[0026] Figure 2 This is a schematic diagram of one distribution method of the crossbar unit in this application.
[0027] Figure 3 This is a schematic diagram illustrating the combined use of the inner wire mesh and the outer tensile wire mesh in this application.
[0028] Figure 4 This is a schematic diagram showing one possible usage position of the crossbar unit in this application.
[0029] Figure 5 This is a structural schematic diagram of the crossbar unit in this application.
[0030] Figure 6 This is a schematic diagram showing the location and shape of the structural reinforcing rod in this application.
[0031] Figure 7 This is a top-down view showing the location of the binding wires in this application.
[0032] Figure 8 This is a schematic diagram illustrating the use of the annular groove reinforcement binding wire in this application.
[0033] Figure 9 This is a structural schematic diagram of the vertical edge fixing strip unit in this application.
[0034] Figure 10This is a schematic diagram of the shape of the fixing hole in this application.
[0035] Figure 11 This is a schematic diagram of the staggered installation method of the wall fixing nails in this application, viewed from a top-down angle.
[0036] The meanings of the markings in the diagram are as follows.
[0037] a) Wall, b) C) C) Concrete, c) Floor, d) Plaster layer, e)
[0038] 1. Inner wire mesh, 2. Outer tensile wire mesh, 3. Horizontal bar unit, 4. Vertical edge fixing strip unit, 5. Binding wire;
[0039] Tensile crossbar 301, fixing ring 302, mounting nail 303, movable ring 304, structural reinforcing bar 305, annular groove 306;
[0040] Fixing plate 401, fixing hole 402, wall fixing nail 403. Detailed Implementation
[0041] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.
[0042] like Figures 1-11 As shown, a mesh reinforcement structure for wall cracks includes an inner wire mesh 1 installed on wall a, covering crack b, and used to block concrete c; an outer tensile wire mesh 2 installed on wall a, covering the inner wire mesh 1; a horizontal bar unit 3 installed on the inner wire mesh 1, located inside the outer tensile wire mesh 2, and used to provide tensile protection for crack b; and a vertical edge fixing strip unit 4 installed on the outer tensile wire mesh 2 and used to connect to wall a.
[0043] In this embodiment, the mesh reinforcement structure is a consumable component used to repair and reinforce crack b. The consumable component consists of: an inner wire mesh 1, an outer tensile wire mesh 2, a crossbar unit 3, and a vertical edge fixing strip unit 4.
[0044] When used on a crack b, this consumable assembly specifically includes: two inner wire mesh panels 1, two outer tensile wire mesh panels 2, several horizontal bar units 3, and two vertical edge fixing strip units 4. Each of the inner wire mesh panels 1, outer tensile wire mesh panels 2, and vertical edge fixing strip units 4 is installed on a single side of the wall a.
[0045] The inner wire mesh 1 and the outer tensile wire mesh 2 are generally produced, stored, and transported in roll form, for example, with a width of 0.5-1.5m and a length of 10-20m. They can be cut as needed during actual use. The horizontal bar unit 3 and the vertical edge fixing strip unit 4 are both of fixed length, for example, the former is 20-30cm and the latter is 1m. Generally, the former does not need to be cut during use, while the latter usually does. The main body material of the horizontal bar unit 3 and the vertical edge fixing strip unit 4 is stainless steel or PVC, thus providing sufficient structural strength and corrosion resistance.
[0046] Generally, crack b needs to be repaired and reinforced in its early stages of formation. Since its length is relatively small, the width of the inner wire mesh 1 and the outer tensile wire mesh 2 is sufficient to cover the entire crack b. On the other hand, when the length of crack b is unexpectedly relatively large, the long side of the inner wire mesh 1 and the outer tensile wire mesh 2 can be used to cover the entire crack b, achieving complete coverage.
[0047] Specifically, the construction and application methods of this mesh reinforcement structure are roughly as follows.
[0048] First, the inner wire mesh 1 and the outer tensile wire mesh 2 are cut so that when they are used, their vertical dimensions are roughly the same, both being significantly larger than the length of the vertical crack b, while the latter's horizontal dimension is 2-3 times that of the former.
[0049] Second, cut the vertical edge fixing strip unit 4 so that its length is greater than the vertical dimension of the outer tensile steel wire mesh 2.
[0050] Third, on one side of wall a, attach the inner wire mesh 1, install and fasten the horizontal bar unit 3, attach the outer tensile wire mesh 2, and install and fasten the vertical edge fixing strip unit 4 in sequence.
[0051] Fourth, repeat step three on the other side of wall a.
[0052] Fifth, concrete c is poured at crack b, that is, between the two inner wire meshes 1.
[0053] Sixth, after the concrete c has fully cured, plaster layer e is applied to the two sides of wall a to form a plaster layer, thus completing the entire repair and reinforcement work.
[0054] Finally, the reasons why this mesh reinforcement structure can provide relatively large tensile strength and sufficient concrete spillage prevention are mainly as follows:
[0055] First, at crack b, at least by using the inner wire mesh 1 and the outer tensile wire mesh 2 in combination, the concrete c is less likely to overflow in the early stage of curing.
[0056] Secondly, the outer tensile steel wire mesh 2 is used to provide the main tensile strength. It can be fixed in a linear and integral way through the vertical edge fixing strip unit 4. This method is more stable than the point-like installation method that only uses nails. The outer tensile steel wire mesh 2 is less likely to separate from the wall a.
[0057] Third, the inner wire mesh 1 combined with the crossbar unit 3 can also provide secondary and auxiliary tensile strength, ultimately making it difficult for crack b to continue to expand and extend.
[0058] The mesh size of the inner wire mesh 1 is smaller than that of the outer tensile wire mesh 2.
[0059] In this embodiment, the tensile strength of the outer tensile wire mesh 2 is greater than that of the inner wire mesh 1, thereby appropriately reducing the production cost of the mesh reinforcement structure. Both the inner wire mesh 1 and the outer tensile wire mesh 2 have square mesh sizes.
[0060] The mesh size of the inner wire mesh 1 is 4mm × 4mm.
[0061] In this embodiment, the mesh size of the outer tensile steel wire mesh 2 can be, for example, 8mm × 8mm.
[0062] The crossbar unit 3 includes a tensile crossbar 301 for fixing the inner wire mesh 1, two fixing rings 302 respectively set at both ends of the tensile crossbar 301, and mounting nails 303 set on the fixing rings 302 and used for insertion into the wall a.
[0063] In this embodiment, one tensile crossbar 301 and two fixing rings 302 are integrally formed, and the opening on the latter is a countersunk hole, so that the tail of the mounting nail 303 will not protrude significantly on the fixing ring 302.
[0064] Generally, the width of crack b is less than 10cm, and the length of the horizontal bar unit 3 is much greater than the above value. At the same time, it is roughly the same as the width of the inner wire mesh 1, so as to firmly attach the inner wire mesh 1 to the wall a and fully cover the crack b.
[0065] The mounting nail 303 passes through the mesh of the inner wire mesh 1, so that the inner wire mesh 1 also has a certain tensile strength.
[0066] It should be noted that crack b may not be roughly vertical. Therefore, the lateral position of the vertically arranged row of crossbar units 3 needs to be adjusted so that the midpoint of the tensile crossbar 301 is approximately located at crack b. See the attached diagram for details. Figure 2 and 4 .
[0067] Correspondingly, this is also why the width of the inner wire mesh 1 is relatively much larger than the width of the crack b, so that the former can completely cover the latter.
[0068] The vertical edge fixing strip unit 4 includes two fixing plates 401 respectively set at two vertical side positions on the outer tensile steel wire mesh 2, fixing holes 402 set on the fixing plates 401, and wall fixing nails 403 set on the fixing holes 402 and passing through the outer tensile steel wire mesh 2.
[0069] In this embodiment, the fixing plate 401 is elongated, the fixing hole 402 is also a countersunk hole, and the wall fixing nail 403 and the mounting nail 303 are both commercially available products. Generally, the length of the wall fixing nail 403 is greater than that of the mounting nail 303.
[0070] At this point, the inner wire mesh 1 has fully covered the crack b and is securely installed, and the outer tensile wire mesh 2 has fully covered the inner wire mesh 1 and is securely installed. Afterward, as long as the concrete c is effectively poured and fully cured, the crack b can be completely filled, making it less likely to crack and extend further, and the aforementioned wall a will not easily collapse.
[0071] The crossbar unit 3 further includes a movable ring 304 sleeved on the tensile crossbar 301, and a structural reinforcing rod 305 disposed on the movable ring 304 and used for insertion into the concrete c.
[0072] In this embodiment, after the concrete c has cured, the structural reinforcement rod 305 is fixed inside it, upgrading the original single concrete structure into a steel-concrete structure, thereby giving the wall a relatively higher structural strength at the original crack b.
[0073] Furthermore, the structural reinforcing rod 305 also passes through the inner wire mesh 1, so the former will not affect the installation effect of the latter. Similarly, since the crack b may not be vertical, the position of the movable ring 304 on each of the crossbar units 3 can be inconsistent. For example, some of the movable rings 304 may be positioned relatively to the left, while the remaining movable rings 304 may be positioned relatively to the right or in the center.
[0074] The mesh reinforcement structure also includes binding wires 5 on the two structural reinforcing rods 305 of the two crossbar units 3 located on both sides of the wall a.
[0075] In this embodiment, another configuration of the mesh reinforcement structure includes the binding wire 5. This consumable component is suitable for cracks b that are relatively wide and have a relatively severe degree of cracking.
[0076] At this point, the installation heights of the two corresponding horizontal bar units 3 on each side of wall a are roughly the same, and the structural reinforcing bars 305 of each unit are close to each other and need to be fixed during the subsequent concrete pouring process.
[0077] The installation and tightening time of the binding steel wire 5 is after the installation nail 303 is driven in and fixed. Its function is to make the crossbar unit 3 not only have a lateral tensile function, but also an anti-misalignment function in the thickness direction of the wall a, so that the wall a is located in the two areas on both sides of the crack b and is not easy to be misaligned laterally.
[0078] Ultimately, the binding wire 5 can also improve the structural strength of the wall a after the cracks have been repaired and reinforced.
[0079] It should be noted that the binding of the binding wire 5 requires construction personnel to use tools to pass through the inner wire mesh 1. When the above operation is relatively cumbersome, the binding wire 5 can be replaced with welding blocks to directly weld and fix the two pairs of structural reinforcing rods 305.
[0080] The tensile crossbar 301 is a square bar, the movable ring 304 is a square ring, and the structural reinforcing bar 305 is arranged laterally.
[0081] In this embodiment, the square rod is used in conjunction with the square ring, so that the structural reinforcing rod 305 is always horizontal, ensuring that the structural reinforcing rods 305 on both sides of the wall a can be easily and conveniently brought close to each other without accidentally falling down.
[0082] The crossbar unit 3 also includes an annular groove 306 disposed on the structural reinforcing bar 305 and used to engage and fix the binding wire 5.
[0083] In this embodiment, the annular groove 306 makes the binding wire 5 more stable when it is wrapped and bound around the two structural reinforcing rods 305, and it is not easy for it to fall off any of the structural reinforcing rods 305.
[0084] Each fixing plate 401 has two fixing holes 402, and the distance between the holes on the two fixing plates 401 is 20-40cm and 50-90cm, respectively.
[0085] In this embodiment, the outer tensile wire mesh 2 needs to provide relatively high tensile strength. Therefore, the length of the wall fixing nail 403 is relatively large. To avoid concentrated and significant damage to wall a caused by the wall fixing nail 403, the wall fixing nails 403 on the same side of crack b need to be staggered as much as possible, including horizontal and / or vertical staggering.
[0086] The above-mentioned horizontal staggering method can be referred to the appendix. Figure 11 That is, the inner wire mesh 1 and the outer tensile wire mesh 2 on both sides are horizontally staggered, for example, the latter is relatively to the right, so that the wall fixing nails 403 on the same side of crack b are staggered, at least the harmful phenomenon of the wall fixing nails 403 colliding with each other will not occur.
[0087] The above-mentioned vertical staggering method can be referred to in the appendix. Figure 9 and 10 The former is a fixing plate 401 with a hole spacing of 50-90cm, and the latter is a fixing plate 401 with a hole spacing of 20-40cm.
[0088] It should be noted that the two fixing plates 401 on the same side of crack b and on the opposite side of wall a should be one fixing plate 401 with a hole spacing of 20-40cm and the other fixing plate 401 with a hole spacing of 50-90cm, so that the wall fixing nails 403 on them can be vertically staggered.
[0089] Finally, the plaster layer e needs to completely cover the entire mesh reinforcement structure. Its thickness may be greater than its original thickness. Therefore, it is permissible for the plaster layer e at the crack repair and reinforcement site to protrude outward appropriately, forming a rectangular vertical protrusion, or the entire wall after crack repair and reinforcement may be re-coated to form plaster layer e, so that the thickness of the plaster layer on the wall is greater than that of the plaster layer on other walls without cracks.
[0090] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.
Claims
1. A mesh reinforcement structure for wall cracks, characterized in that: It includes an inner wire mesh (1) installed on the wall (a) and covering the crack (b) and used to block concrete (c); an outer tensile wire mesh (2) installed on the wall (a) and covering the inner wire mesh (1); a crossbar unit (3) installed on the inner wire mesh (1) and located inside the outer tensile wire mesh (2) and used to provide tensile protection for the crack (b); and a vertical edge fixing strip unit (4) installed on the outer tensile wire mesh (2) and used to connect the wall (a).
2. The mesh reinforcement structure for wall cracks according to claim 1, characterized in that: The mesh size of the inner wire mesh (1) is smaller than that of the outer tensile wire mesh (2).
3. A mesh reinforcement structure for wall cracks according to claim 1, characterized in that: The mesh size of the inner wire mesh (1) is 4mm×4mm.
4. A mesh reinforcement structure for wall cracks according to claim 1, characterized in that: The crossbar unit (3) includes a tensile crossbar (301) for fixing the inner wire mesh (1), two fixing rings (302) respectively set at both ends of the tensile crossbar (301), and mounting nails (303) set on the fixing rings (302) and used for inserting into the wall (a).
5. A mesh reinforcement structure for wall cracks according to claim 1, characterized in that: The vertical side fixing strip unit (4) includes two fixing plates (401) respectively set at two vertical side positions on the outer tensile steel wire mesh (2), fixing holes (402) set on the fixing plates (401), and wall fixing nails (403) set on the fixing holes (402) and passing through the outer tensile steel wire mesh (2).
6. A mesh reinforcement structure for wall cracks according to claim 4, characterized in that: The crossbar unit (3) further includes a movable ring (304) sleeved on the tensile crossbar (301) and a structural reinforcing bar (305) disposed on the movable ring (304) and used for insertion into the concrete (c).
7. A mesh reinforcement structure for wall cracks according to claim 6, characterized in that: It also includes binding wires (5) on two structural reinforcing bars (305) of two crossbar units (3) located on both sides of the wall (a).
8. A mesh reinforcement structure for wall cracks according to claim 7, characterized in that: The tensile crossbar (301) is a square bar, the movable ring (304) is a square ring, and the structural reinforcing bar (305) is arranged laterally.
9. A mesh reinforcement structure for wall cracks according to claim 7, characterized in that: The crossbar unit (3) also includes an annular groove (306) disposed on the structural reinforcing bar (305) and used to engage and fix the binding wire (5).
10. A mesh reinforcement structure for wall cracks according to claim 5, characterized in that: Each fixing plate (401) has two fixing holes (402), and the distance between the holes on the two fixing plates (401) is 20-40cm and 50-90cm, respectively.