Tire grating component without mechanical damage and method

Abstract

The invention provides a tire grating component without mechanical damage and a method, relates to the field of solid waste utilization, and aims to solve the problem that the grating performance is affected due to the fact that the grating fixing position formed by a current tire strip easily causes mechanical damage to the strip. The crossed positions of the longitudinal strips and the transverse strips of the tire grating are wrapped and connected by the hardened body formed by the slurry, so that the durability problem caused by the fact that metal connecting pieces such as rivets are easy to rust is solved, meanwhile, the problem that the tensile strength of the tire grating is influenced due to mechanical damage to the tire grating is avoided, and the tensile strength of the tire grating is improved.

Description

Technical Field

[0001] The invention relates to the field of solid waste utilization, and in particular to a tire grille component without mechanical damage and a method. Background Art

[0002] At present, the application of waste tires in engineering construction mainly focuses on two aspects: on the one hand, the tires are recycled and ground into powder, and added to building materials as an external admixture to improve the energy absorption and shock absorption performance of the materials; on the other hand, the tires are cut into strips and overlapped to form a grid shape, which is used in the foundation to play a reinforcement role. Its strength and durability mainly depend on the material of the tire rubber and the structural integrity of the grid.

[0003] A Chinese patent application (publication number: CN116837717A) discloses a waste tire grid reinforced ribbed abutment embankment structure and construction method, which uses waste tire strips to apply preload force, fully utilizing the elastic retraction force of the tire strips to offset the increase in grid tensile deformation caused by differential settlement during operation. However, anchor hooks need to be set on the tire grid, and bolt kits are used for overlap, which will cause mechanical damage to the grid and introduce cracks or gaps, which may further expand during long-term use, thereby affecting the durability of the grid and its tensile strength. The method of fixing the tire grid to the existing geogrid by binding requires that the geogrid be set in the foundation before construction, and the tire grid cannot be used alone, affecting its functionality and safety as a foundation reinforcement material or building material. Summary of the invention

[0004] The purpose of the present invention is to provide a tire grille component and method without mechanical damage in view of the defects of the prior art, and to wrap and connect the intersection of the longitudinal strips and the transverse strips of the tire grille with a hardened body formed by slurry, thereby solving the durability problem caused by the easy rust of metal connecting parts such as rivets, and at the same time avoiding the problem of mechanical damage to the tire grille and affecting its tensile strength, thereby improving the tensile strength of the tire grille.

[0005] The first object of the present invention is to provide a tire grille component without mechanical damage, using the following scheme:

[0006] include:

[0007] The grille includes longitudinal strips and transverse strips made of tires, and a plurality of longitudinal strips and a plurality of transverse strips are arranged crosswise to form a mesh;

[0008] The hardened body is formed by solidifying the slurry and is wrapped around the intersection of the longitudinal strips and the transverse strips. The longitudinal strips and the transverse strips penetrate the hardened body and are bonded to the hardened body. The intersection contact area of ​​the longitudinal strips and the transverse strips remains in contact.

[0009] Furthermore, a partition is provided between the two axial end faces of the hardened body, the partition is distributed along the superposition direction of the longitudinal strips and the transverse strips, and extends along the axial direction of the hardened body to the end faces at both ends of the hardened body.

[0010] Furthermore, the partition is located on the side of the intersection position to maintain the angle between the longitudinal strip and the transverse strip.

[0011] Furthermore, the hardened body is columnar, and the longitudinal strips and the transverse strips are located between the axial end faces of the hardened body.

[0012] Furthermore, the diameter of the hardened body is greater than the width of the longitudinal strips and the transverse strips.

[0013] The second object of the present invention is to provide a method for manufacturing a tire grille component without mechanical damage as described in the first object, comprising:

[0014] Cut the tire to obtain strips, distribute part of the strips longitudinally, distribute part of the strips transversely, and cross the transverse strips and the longitudinal strips to form a mesh;

[0015] The mold is arranged at a cross position, a cavity is formed inside the mold, and the transverse strip and the longitudinal strip pass through the cavity of the mold respectively;

[0016] injecting slurry into the mold so that the slurry fills the cavity area where the strips are not distributed;

[0017] After the slurry solidifies and cures, a hardened body is formed inside the mold, and the mold is removed to obtain a tire grille component without mechanical damage.

[0018] Furthermore, when arranging the transverse strips and the longitudinal strips, the transverse strips and the longitudinal strips are overlapped, and the overlapping positions are in close contact with each other.

[0019] Furthermore, before the mold is arranged at the intersection position, a mold release agent is coated on the inner wall of the mold cavity and the position contacting the strip.

[0020] Furthermore, the mold includes a matching upper mold and a lower mold, the upper mold is a cylindrical structure with both ends open, and its side facing one end of the lower mold is provided with a slot for the strip to pass through; the lower mold is a cylindrical structure with one end open and the other end closed, and its side facing one end of the upper mold is provided with a slot for the strip to pass through.

[0021] Furthermore, the upper die and the lower die are butt-jointed along the axial direction, the butt-jointed end faces are provided with snap-fitting portions, and the position where the die contacts the strip is a smooth surface.

[0022] Compared with the prior art, the present invention has the following advantages and positive effects:

[0023] (1) In order to solve the problem that the fixed position of the grille formed by the tire strips is prone to mechanical damage to the strips and thus affects the performance of the grille, a hardened body formed by slurry is used to wrap and connect the intersection of the longitudinal strips and the transverse strips of the tire grille, thereby solving the durability problem caused by the easy rust of metal connectors such as rivets. At the same time, it avoids the problem of mechanical damage to the tire grille and affecting its tensile strength, thereby improving the tensile strength of the tire grille.

[0024] (2) Using waste tires as raw materials for making strips can effectively reduce pollution and resource waste in the waste tire recycling process, thereby achieving the goal of reducing costs and increasing efficiency.

[0025] (3) All overlapping methods of tire strips will cause mechanical damage to the strips themselves, destroying their tensile strength. The present invention uses the high-strength interface friction between the hardened body and the strips for connection. During and after the connection is established, no mechanical damage will be caused to the strips themselves, thereby ensuring the tensile strength of the tire grille formed by the strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 Schematic diagram of tire grill components and molds without mechanical damage in Examples 1 and 2 of the present invention.

[0028] Figure 2 Schematic diagram of the mold in Examples 1 and 2 of the present invention.

[0029] Figure 3 Schematic diagram of tire grill components without mechanical damage in Examples 1 and 2 of the present invention.

[0030] Figure 4 Schematic diagram of a hardened body of a tire grid component without mechanical damage in Examples 1 and 2 of the present invention.

[0031] Among them, 1. transverse strips, 2. longitudinal strips, 3. mold, 4. hardened body, 5. partition, 6. upper mold, 7. lower mold, 8. notch. DETAILED DESCRIPTION

[0032] Example 1

[0033] In a typical embodiment of the present invention, Figure 1-Figure 4 As shown, a tire grill component without mechanical damage is provided.

[0034] Conventional tire grille connection methods, such as using metal connectors such as rivets, have the problem of being easily corroded, resulting in reduced durability. At the same time, the metal connectors may cause mechanical damage to the tire grille during the connection process, thereby affecting its tensile strength. Therefore, in this embodiment, the hardened body 4 after the slurry is solidified is used as the connection structure of the strips forming the grille, which can not only ensure the firmness of the connection, but also avoid the above-mentioned problem of being easily corroded, resulting in reduced durability.

[0035] See also Figure 1 In this embodiment, a grid connection component without mechanical damage is provided, which mainly includes a grid and a hardened body 4. The strips are made of tires, and the strips are divided into longitudinal strips 2 and transverse strips 1 according to the distribution position. The longitudinal strips 2 and transverse strips 1 are used as the basic structure of the grid. The slurry hardening method is introduced to form a hardened body 4 at the intersection of the longitudinal strips 2 and the transverse strips 1 of the tire grid, and the fixation between the strips is achieved by wrapping and connecting the hardened body 4. The slurry is an inorganic non-metallic material, which can avoid the rust problem of metal connectors. The slurry is fluid or semi-fluid before solidification, and will not cause mechanical damage to the strips. After solidification, the strips can maintain a fit with the hardened body 4, and mechanical damage to the strips is also avoided.

[0036] Among them, tires are usually made of rubber and reinforcing fibers (such as nylon, polyester or steel wire). The material itself has high strength and durability. Rubber has good elasticity and wear resistance, while the reinforcing fibers provide excellent tensile strength and tear strength. In this embodiment, the tires are cut into strips and used to make the grid. The performance characteristics of the tires are fully utilized. The elasticity of the rubber enables the grid to adapt to various ground deformations, and the reinforcing fibers ensure that the grid is not easy to break when stretched or compressed.

[0037] The longitudinal strips 2 and the transverse strips 1 are cross-distributed to form a mesh structure, which can disperse and transfer loads from different directions. When the grille is subjected to external forces, the load will be distributed to multiple strips along the grid, thereby reducing the stress on a single strip and improving the bearing capacity of the overall structure. Since the tire strips have a certain degree of flexibility and elasticity, when they are cross-distributed, an interlocking effect will be produced, so that the strips can support and restrain each other when subjected to external forces, further enhancing the overall stability and strength of the grille. Tire materials have good adaptability to the environment and can maintain stable performance under various climatic conditions. Whether in high temperature, low temperature, humid or dry environment, tire grilles can maintain good strength and durability.

[0038] Using waste tires to make grilles not only realizes the recycling of resources, but also conforms to the concept of environmental protection. At the same time, after the waste tires are cut into strips, they can also be processed and processed, and their performance and life are improved, thus ensuring the long-term stability and reliability of the grilles. The longitudinal strips 2 and transverse strips 1 made of tires are the basic structure of the grille, which can make full use of the characteristics of tire materials, give play to the advantages of the mesh structure, produce an interlocking effect, adapt to various environments, and realize resource recycling and environmental protection, thereby ensuring the strength and durability of the grille.

[0039] The hardened body 4 is formed at the cross position of the tire grille by slurry hardening, so as to tightly wrap and connect the strips at the cross position. This connection method avoids the corrosion problem of the metal connector and reduces the risk of mechanical damage, mainly based on the following reasons:

[0040] In this embodiment, the slurry is cement mortar or other mixed mortar, which is mixed with one or more chemical materials. After solidification, the slurry will form a hard, durable substance that is not easily affected by the environment (such as rust). Compared with metal connectors, it has a great advantage in corrosion resistance.

[0041] like Figure 3 As shown, the connection method using slurry hardening avoids the use of metal connectors at the intersection of the longitudinal strips 2 and the transverse strips 1 of the grille. Without the presence of metal parts, the possibility of rust is fundamentally eliminated. The hardened body 4 formed after the slurry is solidified usually has good environmental adaptability and can resist the influence of adverse factors such as water and chemical corrosion, thereby maintaining its connection strength and durability.

[0042] like Figure 4 As shown, the slurry will be evenly distributed at the position of the contact strip during the curing process to form a uniform hardened body 4. The uniform wrapping connection method allows the pressure to be evenly distributed, avoiding mechanical damage caused by local stress concentration. Metal connectors will produce mechanical stress such as cutting or squeezing on the tire strip during the connection process, such as opening holes and grooves, thereby weakening the strength of the strip. The slurry hardening method in this embodiment connects the strips together through chemical action, reducing the generation of mechanical stress and thus reducing the risk of mechanical damage.

[0043] like Figure 4 As shown, a partition 5 is provided between the axial end faces of the hardened body 4, distributed along the overlapping direction of the longitudinal strips 2 and the transverse strips 1, that is, the thickness direction of the longitudinal strips 2 and the transverse strips 1, and extending to the end faces at both ends of the hardened body 4, which can enhance the stability of the tire grid structure and prevent the strips from being displaced or deformed when subjected to force.

[0044] The longitudinal strips 2 and transverse strips 1 in the tire grille cross to form a certain angle, such as the longitudinal strips 2 and transverse strips 1 are distributed vertically and at an angle of 60°. The angle is crucial to the overall stability and force distribution of the grille. The presence of the partition 5 can ensure that when subjected to external force, the longitudinal strips 2 are prevented from approaching the transverse strips 1, so that the angle between the strips remains unchanged, thereby maintaining the structural stability of the grille. During the use of the tire grille, especially when subjected to heavy loads or impacts, the strips will be displaced or deformed. The partition 5 can limit the displacement and deformation when subjected to impact, ensuring that the strips remain in a predetermined position, thereby maintaining the overall shape and performance of the grille. As a side structure of the hardened body 4, the partition 5 can maintain the structural stability of the hardened body 4 in the vertical direction, making the tire grille more suitable for use in various harsh environments and working conditions.

[0045] like Figure 3 and Figure 4 As shown, the hardened body 4 is columnar, and the longitudinal strips 2 and the transverse strips 1 are located between the axial end faces of the hardened body 4, so that the hardened body 4 can evenly wrap the strips at the cross position to achieve uniform force.

[0046] During the formation of the columnar hardened body 4, the slurry can evenly cover the surface of the intersection of the longitudinal strip 2 and the transverse strip 1. As the slurry solidifies, the hardened body 4 forms a columnar structure in the axial direction, ensuring that the hardened body 4 formed after the slurry solidifies can be evenly distributed at the intersection, providing uniform pressure distribution for the strips. When the tire grille is subjected to stress, if the hardened body 4 cannot evenly wrap the strips, stress concentration may occur in certain areas, causing the strips to fail prematurely at these locations. In this embodiment, the diameter of the hardened body 4 is greater than the width of the longitudinal strip 2 and the transverse strip 1, and a fluid or semi-fluid slurry is used to gradually cover the intersection during the flow process, and then a columnar hardened body 4 is formed, ensuring that the hardened body 4 evenly wraps the strips, avoiding stress concentration, and thus improving the overall stability and durability of the grille.

[0047] The columnar hardened body 4 not only provides uniform support for the strips, but also optimizes the force conduction path. When the grille is subjected to external force, the external force can be evenly transmitted to the entire grille structure through the hardened body 4, rather than concentrated at a certain point or area. The optimized force conduction method can reduce the stress level of the grille and improve its bearing capacity. The hardened body 4 enhances the connection strength between the strips and makes the entire grille structure more compact and stable. When subjected to external force, the hardened body 4 can effectively resist the relative displacement and deformation between the strips and maintain the overall shape and performance of the grille.

[0048] When arranging the hardened body 4 on the strip, use Figure 2The mold 3 shown can accurately control the shape and size of the hardened body 4 by controlling the injection amount of slurry and the curing conditions during the production process. During the installation process, the mold 3 is installed at the cross position, and the slurry is injected and waited for curing to achieve the connection between the strips, which simplifies the production and installation methods, reduces costs and improves production efficiency.

[0049] The longitudinal strip 2 and the transverse strip 1 are connected by a hardened body 4 through high-strength interface friction between the hardened body 4 and the strip. No mechanical damage will be caused to the strip itself during and after the connection is established, thus ensuring the tensile strength of the tire grille formed by the strip.

[0050] Example 2

[0051] In another typical embodiment of the present invention, Figure 1-Figure 4 As shown, a method for manufacturing a tire grille component without mechanical damage is provided.

[0052] Using the tire grille component without mechanical damage as in Example 1, the following steps are included:

[0053] A method for manufacturing a tire grille component without mechanical damage, comprising:

[0054] Cut the tire to obtain strips, distribute part of the strips longitudinally, distribute part of the strips transversely, and cross the transverse strips 1 and the longitudinal strips 2 to form a mesh;

[0055] The mold 3 is arranged at a cross position, a cavity is formed inside the mold 3, and the transverse strip 1 and the longitudinal strip 2 pass through the cavity of the mold 3 respectively;

[0056] Injecting slurry into the mold 3 so that the slurry fills the cavity area where the strips are not distributed;

[0057] After the slurry solidifies and cures, a hardened body 4 is formed inside the mold 3, and the mold 3 is removed to obtain a tire grille component without mechanical damage.

[0058] Among them, when arranging the transverse strips 1 and the longitudinal strips 2, the transverse strips 1 and the longitudinal strips 2 are overlapped, and the overlapping positions are in contact with each other. After the slurry solidifies to form a hardened body 4, not only can a high-strength interface friction resistance be formed between the hardened body 4 and the strips, but also a damping effect can be formed at the contact position between the transverse strips 1 and the longitudinal strips 2, thereby resisting the axial slippage of the transverse strips 1 and the longitudinal strips 2, and improving the strength and toughness of the formed grating component.

[0059] Before the mold 3 is arranged at the intersection position, a release agent is coated on the inner wall of the cavity of the mold 3 and the position contacting the strip, so as to facilitate the removal of the mold 3 after the slurry solidifies to form a hardened body 4.

[0060] like Figure 2 As shown, the mold 3 includes a matching upper mold 6 and a lower mold 7. The upper mold 6 is a cylindrical structure with both ends open. The side facing the lower mold 7 is provided with a slot 8 for the strip to pass through. The lower mold 7 is a cylindrical structure with one end open and the other end blocked. The side facing the upper mold 6 is provided with a slot 8 for the strip to pass through. It is convenient to pass the transverse strip 1 and the longitudinal strip 2 through these slots 8, respectively, to ensure that they can be correctly positioned at the intersection. Two slots 8 are distributed on the upper mold 6 and the lower mold 7, respectively. The angle formed by the connecting line of the two slots 8 on the upper mold 6 and the connecting line of the two slots 8 on the lower mold 7 matches the angle formed by the longitudinal strip 2 and the transverse strip 1.

[0061] In order to improve the sealing after the slurry is injected, a flexible sealing structure can be added to the slot 8, or the contact position between the slot 8 and the strip can be pasted and sealed. In this embodiment, the chord length corresponding to the slot 8 can be set to be smaller than the width of the matching strip. For example, the chord length corresponding to the slot 8 is 1.9 cm, and the width of the matching strip is 2 cm, so that the strip forms a certain elastic deformation after being placed in the slot 8, thereby sealing the edge of the slot 8, achieving self-sealing, and preventing the slurry from leaking from the slot 8.

[0062] The upper mold 6 and the lower mold 7 are butt-jointed in the axial direction, and a buckle portion is provided on the butt end surface so that the upper mold 6 and the lower mold 7 can be accurately buckled and butt-jointed. The buckle portion can adopt a stopper matching structure, a protrusion and a groove matching structure, etc. The buckle portion not only enhances the sealing of the mold 3, but also improves the stability of the mold 3 during the slurry injection process, helps to prevent the mold 3 from deforming or shifting under the slurry pressure, and ensures that the slurry can be wrapped outside the cross position of the strip. The position where the mold 3 contacts the strip is a smooth surface, which reduces the friction and damage to the surface of the strip when the strip passes through the mold 3, maintains the integrity and strength of the strip, and is particularly suitable for strips made of waste tires.

[0063] The size of mold 3 should be selected based on the tensile strength requirements of the grid to obtain the minimum size of mold 3. The calculation formula is shown in formula (1):

[0064]

[0065] Where: n is the number of nodes, η is the bonding coefficient, f c is the slurry strength, A min It is the minimum contact area between the rubber strip and the slurry.

[0066]

[0067] Wherein: A is the contact area between the rubber strip and the slurry, r is the radius of the mold 3, h is the selected grid width, l is the arc length corresponding to the selected grid width, and ∠A is the circumferential angle corresponding to the selected grid width.

[0068] in:

[0069]

[0070] l=r∠A (4)

[0071] After the mold 3 is installed, the grouting equipment is started to perform automatic grouting. The grid is cured and the mold 3 is removed after the curing is completed.

[0072] The above implementation method was applied to a construction case. The actual construction grid overlap nodes were 10, the strip width was 2 cm, the bonding coefficient was 0.75, C30 concrete was used as the slurry, and the required bonding strength of the grid was 200 kN.

[0073] According to formula (1), select the area of ​​mold 3

[0074] Select a cylindrical mold 3 with a radius of 2 cm, and calculate according to formula (3):

[0075]

[0076] According to formula (4), we can calculate

[0077] Substituting into formula (2) we get

[0078] A≥A min Meet the minimum contact area requirements.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tire grille component without mechanical damage, characterized in that: include: The grille includes longitudinal strips and transverse strips made of tires, wherein a plurality of longitudinal strips and a plurality of transverse strips are arranged crosswise to form a mesh; The hardened body is formed by solidifying the slurry and is wrapped around the intersection of the longitudinal strips and the transverse strips. The longitudinal strips and the transverse strips penetrate the hardened body and are bonded to the hardened body. The intersection contact area of ​​the longitudinal strips and the transverse strips remains in contact.

2. The tire grid component without mechanical damage according to claim 1, characterized in that: A partition is provided between the two axial end faces of the hardened body. The partition is distributed along the superposition direction of the longitudinal strips and the transverse strips and extends along the axial direction of the hardened body to the end faces at both ends of the hardened body.

3. The tire grill component without mechanical damage according to claim 2, characterized in that: The partition is located on the side of the crossing position to maintain the angle between the longitudinal strip and the transverse strip.

4. The tire grid component without mechanical damage according to claim 1, characterized in that: The hardened body is columnar, and the longitudinal strips and the transverse strips are located between the axial end faces of the hardened body.

5. The tire grid component without mechanical damage according to claim 4, characterized in that: The diameter of the hardened body is greater than the width of the longitudinal strips and the transverse strips.

6. A method for manufacturing a tire grille component without mechanical damage as claimed in any one of claims 1 to 5, characterized in that: include: Cut the tire to obtain strips, distribute part of the strips longitudinally, distribute part of the strips transversely, and cross the transverse strips and the longitudinal strips to form a mesh; The mold is arranged at a cross position to form a cavity inside the mold, so that the transverse strips and the longitudinal strips pass through the cavity of the mold respectively; the slurry is injected into the mold to fill the cavity area where the strips are not distributed in the cavity; After the slurry solidifies and cures, a hardened body is formed inside the mold, and the mold is removed to obtain a tire grille component without mechanical damage.

7. The method for manufacturing a tire grille component without mechanical damage according to claim 6, characterized in that: When arranging the transverse strips and the longitudinal strips, the transverse strips and the longitudinal strips are overlapped, and the overlapping positions are in close contact with each other.

8. The method for manufacturing a tire grille component without mechanical damage according to claim 6, characterized in that: Before the mold is arranged at the intersection position, a release agent is applied to the inner wall of the cavity of the mold and the position contacting the strip.

9. The method for manufacturing a tire grill component without mechanical damage according to claim 8, characterized in that: The mold includes a matching upper mold and a lower mold. The upper mold is a cylindrical structure with both ends open, and a groove for the strip to pass through is provided on the side facing one end of the lower mold; the lower mold is a cylindrical structure with one end open and the other end blocked, and a groove for the strip to pass through is provided on the side facing one end of the upper mold.

10. The method for manufacturing a tire grill component without mechanical damage according to claim 9, characterized in that: The upper die and the lower die are butted together along the axial direction, and a buckling portion is provided on the butted end faces, and the position where the die contacts the strip is a smooth surface.

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