Anti-corrosion and anti-cracking plastic anchoring nail for glazed tile

Abstract

The invention discloses an anti-corrosion and anti-cracking plastic anchoring nail for glazed tiles, which comprises a nail cap, a nail body and an anchoring structure, and is integrally injection-molded by weather-proof engineering plastics to replace a traditional steel nail. The anchoring structure can adopt an elastic contraction type or a rigid fixed type multi-ring barb type, wherein the elastic type is matched with an original small-aperture tile hole, and the elastic type can be contracted to penetrate through the tile hole and then rebound for anchoring; the rigid type is matched with a tile hole expanded to 1.5 cm and is directly pressed and inserted, mortar flows into gaps of the barbs to be solidified and wrapped, and strong anti-pulling anchoring is formed. The method thoroughly solves the problems of steel nail corrosion expansion, thermal stress cracking, tile ceramic cracking and falling and the like, is easy and convenient to install, safe and durable, is particularly suitable for glazed tile roofs in southern high-temperature and high-humidity areas, and has extremely high practicability and popularization value.

Description

Technical Field

[0001] This invention relates to the field of building roof tile installation technology, specifically to a corrosion-resistant, crack-resistant, and anti-detachment plastic anchor nail suitable for glazed tile roofs, especially suitable for new construction and renovation of old glazed tile roofs in hot and humid southern regions. Background Technology

[0003] Currently, glazed tile roofs are generally fixed using steel or iron nails, which are passed through pre-drilled holes in the tile surface. This traditional fixing method has many technical drawbacks that are difficult to solve in the hot and humid environment of southern China. 1. Steel nails are prone to rust and damage. When exposed to a humid environment for a long time, they will undergo electrochemical corrosion. After rusting, the steel nails will expand in volume, directly squeezing and cracking the fixing holes of the glazed tiles, causing the tile surface to chip and the tile body to break, which in turn leads to roof leakage problems. 2. The coefficients of thermal expansion of metal nails, glazed tiles, and cement mortar differ significantly. Under the repeated effects of diurnal and seasonal temperature differences in southern regions, the thermal expansion and contraction deformation of different materials are inconsistent, which will generate alternating internal stress. Under long-term effects, this will directly lead to cracking and damage of the tile body. 3. Steel nails are rigid connections that cannot buffer the deformation stress of materials, which can easily lead to the separation of the cement mortar layer from the roof base layer, resulting in loose tiles and falling from heights, posing a great safety hazard. 4. Traditional steel nails require hammering for installation, which can easily cause chipping and damage to the tile surface during construction, resulting in high construction waste and low installation efficiency.

[0004] While existing technologies employ improvements such as using stainless steel nails and adding anti-corrosion coatings, these only slow down the corrosion rate of the steel nails and cannot fundamentally solve core problems such as corrosion expansion, internal stress cracking due to thermal expansion and contraction, and tile detachment. Furthermore, the construction process still involves the drawback of damaging the tiles by hammering. Therefore, this invention provides an all-plastic anchoring nail that uses mortar to encapsulate and anchor, completely solving the various problems associated with traditional steel nail fixing. Summary of the Invention

[0006] The purpose of this invention is to provide a corrosion-resistant and crack-resistant plastic anchor nail for glazed tiles, which can replace traditional steel nails for fixing glazed tiles. This achieves safe fixing without corrosion, stress, chipping, or detachment, and is suitable for the high temperature and humidity environment in southern regions. It also reduces construction losses and improves the service life and safety of the roof.

[0007] Technical solution

[0008] A corrosion-resistant and crack-resistant plastic anchor nail for glazed tiles includes a nail head and a nail body, which are integrally injection molded from high-strength, weather-resistant engineering plastic. An anchoring structure is fixedly installed at the lower part of the nail body. During installation, the anchor nail does not need to be hammered; it is directly pressed through the fixing hole of the glazed tile and extends into the uncured cement mortar layer of the roof. The cement mortar flows naturally, completely enveloping the entire anchoring structure. After the mortar solidifies, it forms a tight interlock with the anchoring structure, generating a strong pull-out force that prevents the anchor nail from being pulled out, thereby achieving permanent, stable, and safe fixing of the glazed tile.

[0009] This invention comprises two parallel technical solutions, both of which fall within the scope of protection of this invention, and can be flexibly selected according to construction requirements: Option 1: Retractable elastic anchoring solution (adapted to existing small-diameter tile holes) In this design, the anchoring structure is an elastic structure that can radially shrink and deform. Under external pressure, it can shrink and become thinner, smoothly passing through the existing 3-4mm conventional fixing holes of the glazed tile. After passing through the tile hole, it loses the squeezing force and automatically rebounds and opens. After sinking into the cement mortar layer, it is completely wrapped and cured by the mortar, forming a strong interlocking anchor. There is no need to enlarge the existing tile holes, and it can be directly adapted to the existing glazed tile specifications.

[0010] Option 2: Rigid barbed anchoring solution (suitable for enlarged diameter tile holes) In this design, the anchoring structure is a rigid multi-ring barb, requiring no elastic deformation and forming an overall rigid structure. During construction, large-hole glazed tiles are purchased, and the fixing holes are enlarged to approximately 1.5cm. The main body diameter of the nail is set to 0.8-1cm, and the outer diameter of the barb matches the enlarged tile hole diameter. During installation, the nail is simply pressed downwards; it passes smoothly through the tile hole without deformation or shrinkage. Cement mortar automatically flows into the gaps between the barbs, completely encapsulating them. After solidification, it forms a fully encapsulated, strong anchor. The structure is simple in design, easy to manufacture and process, and quick to construct, making it suitable for large-scale industrial production and widespread application. The nail body in this embodiment is not limited to a cylinder; it can also be square, rectangular, or other cross-sectional shapes, with square holes corresponding to the glazed tile fixing holes. The nail body has rigid barbs on its side, the outer dimensions of which match the side length of the square tile hole. During installation, it is directly pressed through the square tile hole without deformation. Mortar flows into the gaps between the barbs and the nail body, and after solidification, forms an all-around anchoring, resulting in higher structural strength and stronger pull-out resistance, suitable for the construction requirements of square tile holes. Here, "barb" is a general term, mainly referring to the protruding structure on the outside of the nail body used to form an interlocking anchoring with the cement mortar. This protrusion includes, but is not limited to: 1. Ring-shaped or strip-shaped flat protrusions of uniform thickness; 2. The wedge-shaped protrusion on the side away from the nail body is thicker than the side connecting to the nail body; 3. T-shaped, hook-shaped, or barbed protrusions are provided on the top and side ends away from the nail body; 4. Protrusions in any distribution form, such as continuous rings, discontinuous rings, spirals, and multi-faceted shapes; The number of protrusions can be flexibly set according to the local climate and the tile type. In actual injection molding production, the equal thickness flat ring-shaped barb structure is preferred. This structure has a simple mold, smooth demolding, and the lowest cost. A single ring barb can form a sufficient pull-out anchoring effect. The barb has a uniform thickness structure, so there is no need to use complex structures such as T-shaped or hook-shaped ones. Those skilled in the art can choose single or multiple flat rings according to actual load requirements.

[0011] Beneficial effects

[0012] 1. Made entirely of plastic, completely replacing traditional steel nails. It will never rust, corrode, or expand during use, eliminating the problem of steel nails corroding, expanding, and cracking the tile holes, causing the tile surface to chip and preventing potential roof leaks. 2. High-strength weather-resistant engineering plastics are selected, whose coefficient of thermal expansion is close to that of glazed tiles. After installation, they can expand and contract synchronously with the tile body, eliminating alternating internal stress between different materials, achieving stress-free fixing, avoiding problems such as tile cracking and mortar delamination, and greatly extending the service life of the roof. 3. The press-type installation method eliminates the need for hammering throughout the process, avoiding direct damage to the glazed tiles during construction, resulting in minimal construction waste, improved installation efficiency, and reduced construction difficulty; 4. The anchoring structure forms anchoring points by fully wrapping and curing with cement mortar, which has extremely strong pull-out resistance and can firmly fix glazed tiles, completely eliminating the safety hazards of tiles loosening and falling from heights; 5. Two structural options are available to flexibly adapt to different construction scenarios: the elastic shrinkable type can be used for existing small-diameter tile holes, without the need to modify the tiles; the rigid hook type can be used for new roofs, which has lower production and construction costs. 6. The overall structure is simple, the production cost is low, and the engineering plastic has excellent weather resistance and corrosion resistance in the light-proof environment under the tile. Its service life is synchronized with the main building, the later maintenance cost is extremely low, the safety is high, and it is particularly suitable for the use environment in the hot and humid southern regions. Attached Figure Description

[0014] Figure 1 Schematic diagram of elastic retractable anchor pin structure Figure 2 Schematic diagram of rigid ring-shaped barbed anchor bolt structure Figure 3 Anchor nail installation and usage status cross-sectional view Detailed Implementation

[0015] The present invention will be further described in detail below with reference to specific embodiments, so that the technical solution of the present invention can be more easily understood.

[0016] Example 1: Elastic contraction anchor pin This embodiment is an elastic shrinkage anchor nail adapted to existing small-diameter tile holes. The lower part of the nail body is provided with a multi-lobed elastic body or annular elastic protrusion as an anchoring structure. During installation, the nail head is pressed down, and the elastic anchoring structure shrinks and becomes thinner due to the compression of the inner wall of the tile hole, smoothly passing through the original 5mm glazed tile fixing hole. After completely passing through the tile hole, the elastic anchoring structure loses the compressive force and automatically rebounds and opens, forming an outward-expanding interlocking structure. It then sinks into the uncured cement mortar layer. After the mortar is wrapped and cured, a stable anti-detachment anchoring point is formed, completing the fixing of the glazed tile.

[0017] Example 2 Rigid barbed anchor This embodiment is a rigid annular barbed anchor nail adapted to enlarged diameter tile holes. The nail head diameter is set to 3cm, and the main body diameter is 0.8-1cm. The outer wall of the nail body is integrally set with multiple rings of fixing barbs, and the outer diameter of the barbs is 1.5cm. The fixing hole of the glazed tile is 1.5cm. During installation, the anchor nail is directly pressed down. Because the outer diameter of the annular barb is consistent with the diameter of the tile hole, it can pass through smoothly without deformation. The uncured cement mortar automatically flows into the gap between each ring of barbs, completely covering all barbs. After the mortar cures, it firmly locks the anchor nail, with extremely strong pull-out resistance, making it absolutely impossible to pull out. This structure has simple production molds, low cost, and convenient construction operation, making it the optimal solution for large-scale promotion.

[0018] Example 3: Actual Roof Construction Method 1. After the roof base is cleaned, pour a cement mortar leveling layer. Before the leveling layer solidifies, lay the glazed tiles neatly on the surface of the mortar layer according to the design requirements, adjust the position of the tiles, and ensure that the fixing holes are aligned. 2. Select the appropriate size of plastic anchor nail, align the bottom of the anchor nail with the fixing hole of the glazed tile, keep it vertical, and press it down steadily, avoiding tilting the pressure. 3. After the anchoring structure passes smoothly through the tile hole, it is completely sunk into the cement mortar layer, ensuring that there are no exposed parts; 4. Keep the tiles still and wait for the cement mortar to flow and solidify naturally, so that the anchoring structure is completely wrapped and cured by the mortar. 5. Ensure the nail heads are firmly pressed against the tile surface, with no looseness or curling edges, and complete the glazed tile fixing installation.

[0019] The entire construction process involves no hammering, no corrosion, and no internal stress, completely avoiding problems such as tile chipping, cracking, and falling off. After construction, the safety and durability of the roof are greatly improved.

Claims

1. A corrosion-resistant and crack-resistant plastic anchor nail for glazed tiles, comprising a nail head and a nail body, characterized in that: The entire structure is made of high-strength engineering plastic through one-piece injection molding; The lower part of the nail body is provided with an anchoring structure; When in use, the anchoring nail passes through the fixing hole of the glazed tile and extends into the uncured cement mortar layer below. After the mortar solidifies, it completely wraps the anchoring structure, forming a pull-out anchoring point, thus achieving corrosion-free, stress-free, and anti-fall-off fixing of the glazed tile.

2. The anchoring nail according to claim 1, characterized in that: The anchoring structure is a radially contractible elastic structure that shrinks and becomes thinner when pressed by external force, and automatically rebounds and opens after passing through the tile hole to form an interlocking anchor with the cement mortar.

3. The anchoring pin according to claim 2, characterized in that: The anchoring structure is any one of the following: segmented elastic flap, annular elastic protrusion, or discontinuous elastic barb.

4. The anchoring pin according to claim 1, characterized in that: The anchoring structure consists of fixed barbs distributed on the outside of the main body of the nail, which is a rigid column. The outer dimensions of the barb match the diameter of the tile hole, allowing the anchor nail to pass directly through the tile hole without deformation; The cross-sectional dimension of the nail body is smaller than the diameter of the tile hole, allowing mortar to flow into the gap between the barb and the nail body, achieving wrapping and anchoring after solidification.

5. The anchoring nail according to claim 4, characterized in that, The barb has a protrusion height of 3 to 8 mm, a nail body cross-sectional dimension of 5 to 15 mm, an outer contour dimension of 10 to 25 mm, and a nail head cross-sectional dimension of 10 to 35 mm.

6. The anchoring pin according to claim 1, characterized in that: The cross-sectional dimension of the nail head is larger than the diameter of the fixing hole of the glazed tile, and it is used to press the tile surface and limit the movement to prevent it from falling off.

7. The anchoring pin according to claim 1, characterized in that: Engineering plastics have a thermal expansion coefficient close to that of glazed tiles. When placed under the tiles in a dark environment, they are corrosion-resistant, do not rust, do not expand, and do not compress the tiles.

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