Zipper type self-repairing structure integrating crack monitoring and active reinforcing

Abstract

The invention discloses a zipper type self-repairing structure integrating crack monitoring and active reinforcing, and relates to the technical field of engineering repairing, the zipper type self-repairing structure comprises an embedded frame used for being embedded into the top of a crack generation area and enabling a crack to be completely arranged on the inner side of the embedded frame, and a zipper part which is arranged in the middle of the inner wall of the embedded frame and can be opened and closed; the zipper part is arranged on the embedding frame, the meshing zipper body is arranged on the zipper part, the zipper head mechanism is in meshing transmission with the meshing zipper body, the grouting pipe fitting is arranged at the front end of the zipper head, and the reinforcing and repairing assembly is arranged on the embedding frame and the meshing zipper body. The grouting pipe fitting at the front end is used for conducting dynamic filling and grouting on the crack, then the zipper head mechanism conducts meshing transmission to enable the meshing zipper body to be closed, the repairing process of first grouting and then seam repairing is achieved, meanwhile, the mechanical displacement of the meshing zipper body serves as a trigger source, the reinforcing and repairing assembly is driven to work, and double reinforcing and repairing are achieved.

Description

Technical Field

[0001] This invention relates to the field of engineering repair technology, specifically to a zipper-type self-healing structure that integrates crack monitoring and active reinforcement. Background Technology

[0002] In the field of civil engineering and building structure maintenance, concrete structures, due to their inherent characteristics of low tensile strength and susceptibility to cracking, have long faced the dual challenges of crack monitoring and repair. Traditional crack treatment technologies are usually divided into two independent stages: "passive monitoring" and "post-repair." Especially for major infrastructure projects in complex environments such as dams, tunnels, and deep-sea foundations, existing technologies still have the following drawbacks;

[0003] Firstly, at the monitoring level, it relies heavily on manual inspections or periodic testing using pre-embedded electronic sensors (such as fiber optic gratings and resistance strain gauges).

[0004] Secondly, in terms of repair, conventional grouting repair processes (such as pressure injection of epoxy resin) often need to be carried out after the cracks have become visible, and the repair process is completely disconnected from the monitoring system.

[0005] Furthermore, existing repair technologies present a contradiction in controlling the timing of grouting and crack closure. If the crack is sealed before grouting, the filling is often not dense, leaving internal voids. If grouting is done first and then sealing is done, the grout is prone to overflow and loss.

[0006] Therefore, this application provides a zipper-type self-healing structure that integrates crack monitoring and active reinforcement. Summary of the Invention

[0007] The purpose of this invention is to provide a zipper-type self-repairing structure that integrates crack monitoring and active reinforcement. The structure uses a grouting pipe at the front end to dynamically fill and grout the crack. Then, the zipper head mechanism engages and drives the zipper body to close, realizing a repair process of grouting before cracking. At the same time, the mechanical displacement of the zipper body itself is used as a trigger source to drive the reinforcement and repair components to work, achieving dual reinforcement and repair.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a zipper-type self-healing structure integrating crack monitoring and active reinforcement, comprising: an embedded frame for embedding in the top of the crack occurrence area and placing the crack completely inside the embedded frame, and an openable zipper portion disposed in the middle of the inner wall of the embedded frame;

[0009] The zipper assembly includes an interlocking zipper body on the zipper section, a zipper head mechanism that engages with the interlocking zipper body, and a grouting pipe at the front end of the zipper head. When the zipper head mechanism drives the front grouting pipe to grout and fill the crack, the zipper head mechanism then engages to close the interlocking zipper body, quickly repairing the grout-filled crack area. It also includes a reinforcement and repair component mounted on an embedded frame and placed on the interlocking zipper body, and a valve column assembly and a repair box assembly located below the reinforcement and repair component. When a small crack appears in the structure, the corresponding interlocking zipper body slides or opens relative to the crack, enabling magnified detection and moving the corresponding repair box assembly. This triggers the valve column assembly to open, allowing the reinforcement and repair component to repair the crack area and release local heat. The interlocking zipper body is made of shape memory alloy. When the crack area releases heat and the temperature rises, the shape memory alloy undergoes a martensitic transformation to generate recovery stress, causing the interlocking zipper body to recover to a preset closed shape.

[0010] Preferably, the zipper portion includes two base portions disposed in the middle of the embedded frame and opening and closing relative to each other, and the interlocking zipper body is disposed between the two base portions; the interlocking zipper body includes a first zipper portion, a second zipper portion, and zipper teeth disposed on opposite sides of the first zipper portion and the second zipper portion and engaging with each other, and each zipper tooth has an end body at its end; the zipper head mechanism includes a zipper body adapted to the interlocking zipper body, and a connecting block is fixed on the zipper body.

[0011] Preferably, the repair box assembly includes several sets of equidistantly distributed box structures. Each set of box structures consists of two groups, which are respectively placed on the first zipper part and the second zipper part. Each box structure includes a box body, which is triangular in shape. A first inclined surface is provided on the outer edge of the box body, and a second inclined surface is provided on the inner edge of the box body. The second inclined surface extends to the lower part of the box body and is provided with an end plate. A first transmission plate and a second transmission plate are assembled with the upper and lower parts of the second inclined surface and along the inclined surface. A through groove is provided at the bottom of the box body.

[0012] Preferably, the reinforcement and repair assembly includes a reinforcement shell adapted to each box structure, the reinforcement shell being horizontally slidably installed with one end of the embedded frame, and the reinforcement shell including a reinforcement frame, both sides of the reinforcement frame being provided with transmission pressure surfaces adapted to the first inclined surface, and bottom pressure plates extending horizontally to both sides from the bottom of the transmission pressure surfaces on both sides; and a first storage cavity disposed in the middle of the horizontal section of the reinforcement frame, a second step portion being provided at the reinforcement frame position corresponding to the bottom of the first storage cavity, and a second storage cavity being provided inside the reinforcement frames on both sides of the first storage cavity, a first step portion being provided at the reinforcement frame position corresponding to the bottom of the two second storage cavities, the valve column assembly being a plurality of groups, and the tops of the plurality of groups of valve column assemblies acting sequentially at the first step portion and the second step portion and communicating with the interior of the second storage cavity and the first storage cavity respectively, and the bottoms of the plurality of groups of valve column assemblies acting sequentially at the first transmission plate and the second transmission plate.

[0013] Preferably, the bottom of the second storage cavity is provided with a liquid outlet sleeve, wherein one set of valve column assemblies includes a support transmission column, the bottom of the support transmission column acts on a first transmission plate, and its top is connected to a valve stem that moves telescopically within the liquid outlet sleeve, and a valve plug assembled with the top of the valve stem, the valve plug being narrow at the top and wide at the bottom and used to block the liquid outlet sleeve, and a return spring connected between the first step and the support transmission column and located on the outer wall of the valve stem.

[0014] Preferably, two triangular lifting transmission components are provided below the second step portion at the end of the embedded frame away from the mounting block. The two triangular lifting transmission components have triangular cross sections and increase in size sequentially along the sliding direction of the second step portion, so as to allow the valve column assembly to slide in quickly and be supported on the corresponding first transmission plate and second transmission plate.

[0015] Preferably, the embedded frame is further provided with a repair tank device, the repair tank device includes a liquid storage tank, the liquid storage tank is provided with a pump body, and a first connector and a corrugated telescopic tube connected in sequence to the pump body, the end of the corrugated telescopic tube away from the first connector is connected to an extension end on the end of the first storage cavity, and the top of the second storage cavity is provided with an openable and closable cover.

[0016] Preferably, an end block is fixed at one end of the first storage cavity near the grouting pipe fitting. The end block is detachably installed with the connecting block via a locking pin. A linear pull rod mechanism is also provided on the upper surface of one side of the embedded frame, which is used to connect with the end block and drive the zipper body and the reinforcing shell to operate synchronously.

[0017] Preferably, the linear pull rod mechanism includes a back plate, a second sprocket and a first sprocket rotatably disposed at both ends of the back plate, and a chain meshing with the second sprocket and the first sprocket for transmission. A crossbar connected to an end block is laterally fixed at the lower part of the chain, and a first motor is fixedly mounted on the back plate. The output shaft of the first motor passes through a through hole in the back plate and is fixedly connected to the second sprocket.

[0018] Preferably, the grouting fitting includes a mounting block fixed to the end of the zipper body, and a grouting interface is provided through the mounting block for docking with the repair grouting equipment to inject grout into the crack and the area below the zipper.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention uses an embedded frame as a reference frame to organically integrate the zipper part, grouting pipe and zipper head mechanism. During the movement of the zipper head mechanism, the grouting pipe at the front end is used to dynamically fill the crack with grout. Then the zipper head mechanism engages and drives the zipper body to close. This "grout first, then seal" sequential design solves the problem of grout overflow or incomplete filling caused by asynchronous grouting and sealing in traditional repairs, and realizes rapid and orderly sealing of crack areas.

[0021] 2. This invention utilizes the mechanical displacement of the interlocking zipper body as a trigger source through its structural design. When a tiny crack appears, the interlocking zipper body will slide or open relative to each other. This mechanical action not only directly reflects the occurrence of the crack, but also amplifies the tiny crack displacement into a significant zipper body misalignment through the interlocking structure of the zipper teeth, thereby driving the adaptive local repair process.

[0022] 3. The repair box assembly moves under the drive of the zipper body, triggering the valve column assembly to open, allowing the reinforcement and repair assembly to release the repair agent and repair the crack area. The local heat released by the reinforcement and repair assembly during the curing process is used as the energy to trigger the phase transformation of the shape memory alloy. The interlocking zipper body undergoes a martensitic phase transformation, generating strong recovery stress, and actively shrinks towards the preset closed shape, applying prestress to the crack. This cleverly transforms the waste heat of the repair into reinforcement power, realizing self-tightening and self-reinforcement after structural damage. Attached Figure Description

[0023] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0024] Figure 2 for Figure 1 A second-view 3D structural diagram;

[0025] Figure 3 for Figure 1 Front view structural diagram;

[0026] Figure 4 for Figure 1 A schematic diagram of the side view structure;

[0027] Figure 5 This is a schematic diagram of the implementation state distribution structure of the present invention;

[0028] Figure 6 This is a partially enlarged structural diagram of the zipper head mechanism of the present invention;

[0029] Figure 7 This is a schematic diagram of the CC cross-sectional structure of the present invention;

[0030] Figure 8 This is a partial disassembly diagram of the first view of the present invention;

[0031] Figure 9 This is a partial disassembly diagram of the second view of the present invention;

[0032] Figure 10 This is an enlarged structural diagram of point A in the present invention;

[0033] Figure 11 This is an enlarged structural diagram of section B of the present invention;

[0034] Figure 12 This is an enlarged structural diagram of point D in the present invention;

[0035] Figure 13 This is a partially enlarged structural diagram of the repair box assembly of the present invention;

[0036] Figure 14 This is a schematic diagram of the transmission state structure of the triangular lifting transmission component and valve column assembly of the present invention.

[0037] In the diagram: 111, Embedded box;

[0038] 211. Base; 212. First zipper section; 213. Zipper teeth; 214. End body; 215. Second zipper section;

[0039] 311. Reinforcing frame; 3111. First step; 3112. Second step; 312. Transmission pressure surface; 313. Bottom pressure plate; 314. First storage chamber; 3141. Extension end; 315. Second storage chamber; 3151. Liquid outlet sleeve; 316. End block; 317. Connecting block; 318. Locking pin; 319. Zipper body; 320. Mounting block; 321. Grouting interface;

[0040] 411. Chain; 412. First sprocket; 413. First motor; 414. Second sprocket; 415. Crossbar; 416. Backing plate;

[0041] 511. Liquid storage tank; 512. First connector; 513. Corrugated expansion joint;

[0042] 611. Box body; 612. First inclined surface; 613. Second inclined surface; 614. First transmission plate; 615. Second transmission plate; 616. End plate; 617. Through groove;

[0043] 711. Supporting transmission column; 712. Valve stem; 713. Return spring; 714. Valve plug;

[0044] 811. Triangular lifting transmission component. Detailed Implementation

[0045] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. The various embodiments of this invention are described in detail below with reference to the accompanying drawings.

[0046] Example 1

[0047] Please see Figures 1 to 14 The present invention preferably provides a technical solution: a zipper-type self-repairing structure integrating crack monitoring and active reinforcement, comprising: an embedded frame 111 for embedding in the top of the crack occurrence area and placing the crack completely inside the embedded frame 111; and an openable zipper portion disposed in the middle of the inner wall of the embedded frame 111; an interlocking zipper body disposed on the zipper portion; and a zipper head mechanism that engages and drives the interlocking zipper body; a grouting pipe disposed at the front end of the zipper head, wherein when the zipper head mechanism drives the front grouting pipe to grout and fill the crack, the zipper head mechanism then engages to close the interlocking zipper body, thereby quickly repairing the grout-filled crack area; and further comprising a zipper head mechanism disposed in the embedded frame 111. The reinforcing and repairing component placed on the interlocking zipper body in frame 111, along with the valve post assembly and repair box assembly located below the reinforcing and repairing component, allows the interlocking zipper body at the corresponding position to slide or open relative to the structure when a tiny crack appears. This enables the crack to be magnified and detected, and drives the repair box assembly at the corresponding position to move, triggering the valve post assembly to open so that the reinforcing and repairing component can repair the crack area and release local heat. The interlocking zipper body is made of shape memory alloy. When the crack area releases heat and the temperature rises, the shape memory alloy undergoes a martensitic phase transformation to generate recovery stress, causing the interlocking zipper body to recover to a preset closed shape.

[0048] This invention uses an embedded frame 111 as a reference frame to organically integrate the zipper part, grouting pipe, and zipper head mechanism. When applied to crack construction, the zipper head mechanism first uses the grouting pipe at the front end to dynamically fill the crack with grout during the movement process. Then, the zipper head mechanism engages and drives the zipper body to close. This "grout first, then seal" sequential design solves the problem of grout overflow or incomplete filling caused by asynchronous grouting and sealing in traditional repairs, and realizes rapid and orderly sealing of crack areas.

[0049] Secondly, during subsequent use, monitoring, and repair, through the structural design of the interlocking zipper body, mechanical signal amplification and physical triggering, the mechanical displacement of the interlocking zipper body itself is used as the trigger source. When a tiny crack appears, the interlocking zipper body will slide or open relative to each other. This mechanical action not only directly reflects the occurrence of the crack, but also amplifies the tiny crack displacement into a significant zipper body misalignment through the interlocking structure of the zipper teeth 213, thereby driving the repair box assembly below to move.

[0050] Furthermore, this design features dual reinforcement and repair:

[0051] Level 1 Repair: The repair box assembly moves under the action of the zipper, triggering the valve column assembly to open, allowing the reinforcement and repair assembly to release the repair agent and repair the cracked area.

[0052] Secondary repair: Utilizing the local heat released during the curing process of the reinforcement and repair components as the energy to trigger the phase transformation of the shape memory alloy, the interlocking zipper body undergoes a martensitic phase transformation, generating strong recovery stress, actively shrinking towards the preset closed shape, applying prestress to the crack, cleverly converting the waste heat of repair into reinforcement power, and realizing self-tightening and self-reinforcing after structural damage.

[0053] This design, through its modular construction of the embedded frame 111, zipper section, and repair box assembly, allows for prefabrication and assembly in the factory according to the size, shape, and stress characteristics of the concrete components. During on-site construction, the embedded frame 111 is simply pre-embedded or externally attached to areas of the structure prone to cracking, and then the repair box assembly is connected. This modular structure not only ensures the stability of product quality but also significantly improves on-site construction efficiency, making it particularly suitable for special engineering environments such as dams, tunnels, and underwater foundations where manual inspection and maintenance are difficult.

[0054] Furthermore, the zipper portion includes two base portions 211 located in the middle of the embedded frame 111 and opening and closing relative to each other, with the interlocking zipper body placed between the two base portions 211; the interlocking zipper body includes a first zipper portion 212, a second zipper portion 215, and zipper teeth 213 located on opposite sides of the first zipper portion 212 and the second zipper portion 215 and engaging with each other, with an end body 214 provided at the end of each zipper tooth 213; the zipper head mechanism includes a zipper body 319 adapted to the interlocking zipper body, with a connecting block 317 fixed on the zipper body 319.

[0055] Preferably, a plurality of displacement sensors are provided at intervals between the first zipper section 212 and the second zipper section 215 to monitor the separation state of the engaging zipper bodies in real time, such as... Figure 1 , 2 As shown in Figure 5, two relatively openable bases 211 are provided in the middle of the embedded frame 111, and an interlocking zipper body composed of a first zipper portion 212 and a second zipper portion 215 is arranged between the two bases 211. When a tiny crack appears in the concrete structure, the slight opening displacement caused by the crack is first transmitted to the first zipper portion 212 and the second zipper portion 215. Through the action of the interlocking zipper teeth 213, the tiny crack is opened and amplified by the relative sliding of the zipper teeth 213. This mechanical displacement amplification mechanism makes micro-cracks that are originally difficult to be detected by electronic sensors clearly perceptible, significantly improving monitoring sensitivity and providing higher reliability.

[0056] It is worth noting that the entire interlocking zipper body, or at least its zipper teeth 213, is made of shape memory alloy material. When the reinforcement and repair component releases repair material such as modified epoxy resin and cures, the local heat released by the curing reaction is absorbed by the SMA material. The temperature rise triggers a martensitic phase transformation in the SLA material, generating recovery stress along a preset direction, causing the first zipper part 212 and the second zipper part 215 to be further pulled together towards the center.

[0057] Example 2

[0058] In another embodiment of the present invention, the repair box assembly includes several sets of equidistantly distributed box structures. Each set of box structures consists of two groups, which are respectively placed on the first zipper part 212 and the second zipper part 215. Each box structure includes a box body 611, which is triangular in shape. A first inclined surface 612 is provided on its outer edge, and a second inclined surface 613 is provided on its inner edge. The second inclined surface 613 extends to the lower part of the box body 611 and is provided with an end plate 616. A first transmission plate 614 and a second transmission plate 615 are assembled with the upper and lower parts of the second inclined surface 613 and along the inclined surface. A through groove 617 is provided at the bottom of the box body 611.

[0059] In this embodiment, a structural design for the repair box assembly is further provided, such as... Figure 8 , 9 As shown in Figure 13, the directional transmission and triggering of displacement are achieved through the triangular box structure and inclined surface assembly design. Several sets of equidistantly distributed box structures are used, each set corresponding to a section of zipper teeth 213. When the crack only occurs in a certain local section, only the zipper teeth 213 at the corresponding position slide, only the box structure in that area moves, and only the valve column assembly corresponding to that area is triggered to open and slide from the zipper teeth 213.

[0060] Specifically, the repair box assembly includes several sets of equidistantly distributed box structures. Each set of box structures consists of two groups, respectively placed on the first zipper section 212 and the second zipper section 215. A first transmission plate 614 and a second transmission plate 615 are respectively mounted along the upper and lower parts of the second inclined surface 613. Figure 9 As shown, when the first zipper part 212 and the second zipper part 215 slide relative to each other, the displacement distance is transmitted to the first transmission plate 614 and the lower second transmission plate 615. By using the movement of the inclined plane, the horizontal displacement of the zipper is converted into the vertical force of the valve column assembly, which is used to drive the valve column assembly to open. The individual box body 611 is isolated and provides precise repair for the crack position. Through the opening of the through groove 617, the repair solvent released by the reinforcement and repair component can penetrate the box structure and act directly on the micro crack position.

[0061] Example 3

[0062] In another embodiment of the present invention, the reinforcement and repair assembly includes a reinforcement shell adapted to each box structure. The reinforcement shell is horizontally slidably installed with one end of the embedded frame 111. The reinforcement shell includes a reinforcement frame 311. Both sides of the reinforcement frame 311 are provided with transmission pressure surfaces 312 adapted to the first inclined surface 612, and bottom pressure plates 313 extend horizontally to both sides from the bottom of the transmission pressure surfaces 312. A first storage cavity 314 is provided in the middle of the horizontal section of the reinforcement frame 311, and a second step is provided at the position of the reinforcement frame 311 at the bottom of the first storage cavity 314. The first storage cavity 314 has a second storage cavity 315 inside the reinforcing frame 311 on both sides of the first storage cavity 314. The bottom of the two second storage cavities 315 is provided with a first step 3111. The valve column assembly consists of several groups. The top of the several groups of valve column assemblies acts sequentially on the first step 3111 and the second step 3112 and communicates with the interior of the second storage cavity 315 and the first storage cavity 314 respectively. The bottom of the several groups of valve column assemblies acts sequentially on the first transmission plate 614 and the second transmission plate 615.

[0063] Through further reinforced enclosures, such as Figure 1 , 5As shown in Figures 7 and 8, during the overall crack injection repair, the zipper head mechanism and the repair box assembly work together. When the zipper head mechanism moves, the grouting pipe dynamically fills the crack with grout. Then, the zipper head mechanism engages and drives the zipper body to close. At the same time, it drives the reinforcing shell to gradually move forward to cover and clamp each repair box assembly, thereby further strengthening the structure after suturing.

[0064] Secondly, during the later maintenance and repair of localized cracks, a repair agent can be locally injected and released, such as... Figure 11 As shown, the reinforcing frame 311 is provided with a first storage cavity 314 in the middle and second storage cavities 315 on both sides, and several valve column assemblies are provided at the bottom. This dual-cavity design can store a variety of repair materials such as epoxy resin, curing agent or initiator of different viscosities to achieve local repair and curing functions in a comprehensive manner. Furthermore, the heat released during the curing of the repair material further triggers the zipper teeth 213 to undergo martensitic phase transformation, generating active shrinkage force and applying prestress to the repair area.

[0065] Furthermore, the bottom of the second storage chamber 315 is provided with a liquid outlet sleeve 3151, wherein a set of valve column assemblies includes a support transmission column 711, the bottom of the support transmission column 711 acts on the first transmission plate 614, and its top is connected to a valve stem 712 that moves telescopically within the liquid outlet sleeve 3151, and a valve plug 714 assembled with the top of the valve stem 712. The valve plug 714 is narrow at the top and wide at the bottom and is used to block the liquid outlet sleeve 3151, and a return spring 713 is connected between the first step portion 3111 and the support transmission column 711 and located on the outer wall of the valve stem 712.

[0066] By setting the valve column assembly, such as Figure 11 , 12 As shown, when there is no crack, the first transmission plate 614 supports the entire support transmission column 711, keeping the return spring 713 compressed and causing the valve plug 714 to seal the liquid outlet sleeve 3151, ensuring that the repair material does not leak. When a crack occurs, forcing the zipper teeth 213 on both sides to slip, the first transmission plate 614 and the second transmission plate 615 move relative to the horizontal position of the support transmission column 711. Under the action of the return spring 713, the entire support transmission column 711 drives the valve plug 714 downward, causing the valve plug 714 to gradually disengage. The outlet sleeve 3151, and because the valve plug 714 is narrow at the top and wide at the bottom, the repair material is released gradually during the process of detachment. That is, the larger the crack, the greater the horizontal movement distance of the first transmission plate 614 and the second transmission plate 615 relative to the supporting transmission column 711, the greater the degree to which the valve plug 714 is detached from the outlet sleeve 3151, and the more repair material is released. After improper local crack repair, the first transmission plate 614 and the second transmission plate 615 on both sides move and reset relative to the supporting transmission column 711 in the horizontal position, and the valve plug 714 re-blocks the valve port.

[0067] Furthermore, two triangular lifting transmission components 811 are provided below the second step portion 3112 at the end of the embedded frame 111 away from the mounting block 320. The two triangular lifting transmission components 811 have triangular cross sections and increase in size sequentially along the sliding direction of the second step portion 3112, for the valve column assembly to slide in quickly and be supported on the corresponding first transmission plate 614 and second transmission plate 615.

[0068] like Figure 4 , 14 As shown, by using two triangular lifting transmission members 811 provided below the second step portion 3112 at the end of the embedded frame 111, under the action of this inclined surface, it is convenient for several supporting transmission columns 711 to pass smoothly and enter the corresponding positions of the first transmission plate 614 and the second transmission plate 615 in sequence. After the reinforcing frame 311 is assembled, each supporting transmission column 711 is supported on the first transmission plate 614 and the second transmission plate 615 and seals the corresponding second storage cavity 315 and the first storage cavity 314, as shown. Figure 11 , 12 As shown, the repair agent can only be added when several valve plugs 714 completely block the second storage chamber 315 and the first storage chamber 314.

[0069] Furthermore, a repair tank device is also provided on the embedded frame 111. The repair tank device includes a liquid storage tank 511. A pump body is provided inside the liquid storage tank 511, and a first connector 512 and a corrugated telescopic tube 513 are connected to the pump body in sequence. The end of the corrugated telescopic tube 513 away from the first connector 512 is connected to an extension end 3141 on the end of the first storage cavity 314. An openable and closable cover is provided on the top of the second storage cavity 315.

[0070] like Figure 1 As shown, the repair tank device is connected to the inside of the first storage chamber 314 through the corrugated telescopic tube 513, which can add liquid repair agent into the first storage chamber 314, and can add powder repair material into the second storage chamber 315 through the openable and closable cover at the top of the second storage chamber 315, so as to realize the composite application of multiple repair materials.

[0071] Example 3

[0072] In another embodiment of the present invention, an end block 316 is fixed at one end of the first storage cavity 314 near the grouting pipe fitting. The end block 316 is detachably installed with the connecting block 317 via a locking pin 318. A linear pull rod mechanism is also provided on the upper surface of one side of the embedded frame 111, which is used to connect with the end block 316 and drive the zipper body 319 and the reinforcing cover to operate synchronously.

[0073] Furthermore, the linear linkage mechanism includes a back plate 416, a second sprocket 414 and a first sprocket 412 rotatably disposed at both ends of the back plate 416, and a chain 411 meshing with the second sprocket 414 and the first sprocket 412 for transmission. A crossbar 415 connected to the end block 316 is laterally fixed at the lower part of the chain 411, and a first motor 413 is fixedly mounted on the back plate 416. The output shaft of the first motor 413 passes through the through hole on the back plate 416 and is fixedly connected to the second sprocket 414.

[0074] like Figure 1 , 8 As shown in Figure 10, through the assembly relationship of locking pin 318 and end block 316, when the linear pull rod mechanism is driven, that is, when the first motor 413 is working, due to the meshing transmission action of the second sprocket 414, the first sprocket 412 and the chain 411, when the first motor 413 rotates back and forth, it can drive the crossbar 415 to perform long-distance horizontal traction. At this time, the reinforcing shell and the front zipper body 319 move synchronously, and the grouting pipe fills the crack in real time. Subsequently, the meshing action of the zipper body 319 causes the interlocking zipper body to gradually close, and the grouting area is repaired in time. The reinforcing shell further follows and wraps and reinforces the box structure through the transmission pressure surfaces 312 on both sides, so that the interlocking zipper body structure is further enhanced.

[0075] Example 4

[0076] In another embodiment of the present invention, the grouting fitting includes a mounting block 320 fixed to the end of the zipper body 319, and a grouting interface 321 is provided through the mounting block 320 for docking with the repair grouting equipment to inject grout into the crack and the area below the zipper.

[0077] like Figure 6 , 10 As shown, an installation block 320 is fixedly installed at the end of the zipper body 319, and a grouting interface 321 is provided through the installation block 320 for quick docking with external repair grouting equipment. When the linear pull rod mechanism drives the zipper body 319 to move along the interlocking zipper body, the grouting interface 321 moves synchronously, realizing continuous grouting operation while moving, ensuring that the entire crack can be evenly filled with repair material from beginning to end.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Detachable installation can take many forms, such as through a combination of plug-in and snap-fit ​​connections, or through bolt connections, etc.

[0079] The above embodiments, which describe the specific features of the present invention, are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made to the present invention by those skilled in the art based on the above description of the invention shall fall within the scope of protection of the present invention.

Claims

1. An integrated crack monitoring and active reinforcement zippered self-healing structure, characterized by, include: An embedded frame (111) is used to embed the top of the crack occurrence area and make the crack completely placed inside the embedded frame (111), and a zipper part that can be opened and closed is provided in the middle of the inner wall of the embedded frame (111); The zipper body is provided on the zipper section, and the zipper head mechanism is engaged and driven with the zipper body. The grouting pipe is provided at the front end of the zipper head. When the zipper head mechanism drives the front grouting pipe to grout and fill the crack, the zipper head mechanism then engages to close the zipper body, so as to quickly repair the crack area after grouting. It also includes a reinforcement and repair component disposed on the embedded frame (111) and placed on the interlocking zipper body, as well as a valve column assembly and a repair box assembly disposed below the reinforcement and repair component. When a micro crack appears in the structure, the interlocking zipper body at the corresponding position will slide or open relative to achieve the magnification detection of the crack and drive the repair box assembly at the corresponding position to move, triggering the valve column assembly to open so that the reinforcement and repair component can repair the crack area and release local heat. The interlocking zipper body is made of shape memory alloy. When the crack area releases heat and the temperature rises, the shape memory alloy undergoes a martensitic phase transformation to generate recovery stress, which causes the interlocking zipper body to recover to the preset closed shape.

2. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 1, characterized in that: The zipper section includes two bases (211) located in the middle of the embedded frame (111) and opening and closing relative to each other, and the interlocking zipper body is placed between the two bases (211); The interlocking zipper body includes a first zipper part (212), a second zipper part (215), and zipper teeth (213) disposed on opposite sides of the first zipper part (212) and the second zipper part (215) and interlocking with each other. Each zipper tooth (213) has an end body (214) at its end. The zipper head mechanism includes a zipper body (319) adapted to engage the zipper body, and a connecting block (317) is fixed on the zipper body (319).

3. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 1, characterized in that: The repair box assembly includes several sets of equidistantly distributed box structures. Each set of box structures consists of two groups, which are respectively placed on the first zipper part (212) and the second zipper part (215). Each box structure includes a box body (611), which is triangular in shape. A first inclined surface (612) is provided on its outer edge, and a second inclined surface (613) is provided on the inner edge of the box body (611). The second inclined surface (613) extends to the lower part of the box body (611) and is provided with an end plate (616). A first transmission plate (614) and a second transmission plate (615) are assembled with the upper and lower parts of the second inclined surface (613) and along the inclined surface. A through groove (617) is provided at the bottom of the box body (611).

4. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 1, characterized in that: The reinforcement and repair assembly includes a reinforcement shell adapted to each box structure. The reinforcement shell is horizontally slidably installed at one end of the embedded frame (111). The reinforcement shell includes a reinforcement frame (311). Both sides of the reinforcement frame (311) are provided with transmission pressure surfaces (312) adapted to the first inclined surface (612). Bottom pressure plates (313) extend horizontally to both sides from the bottom of the transmission pressure surfaces (312) on both sides. The first storage cavity (314) is located in the middle of the horizontal section of the reinforcing frame (311). A second step (3112) is provided at the position of the reinforcing frame (311) at the bottom of the first storage cavity (314). A second storage cavity (315) is provided in the reinforcing frame (311) on both sides of the first storage cavity (314). A first step (3111) is provided at the position of the reinforcing frame (311) at the bottom of the two second storage cavities (315). The valve column assembly consists of several groups. The tops of the several groups of valve column assemblies act sequentially on the positions of the first step (3111) and the second step (3112) and communicate with the interior of the second storage cavity (315) and the first storage cavity (314) respectively. The bottoms of the several groups of valve column assemblies act sequentially on the first transmission plate (614) and the second transmission plate (615).

5. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 4, characterized in that: The second storage chamber (315) has an outlet sleeve (3151) at the bottom. One set of valve column assemblies includes a support transmission column (711), the bottom of which acts on the first transmission plate (614), and its top is connected to a valve stem (712) that moves telescopically within the outlet sleeve (3151), and a valve plug (714) fitted to the top of the valve stem (712). The valve plug (714) is narrow at the top and wide at the bottom and is used to block the outlet sleeve (3151), and a return spring (713) is connected between the first step (3111) and the support transmission column (711) and located on the outer wall of the valve stem (712).

6. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 1, characterized in that: Two triangular lifting transmission components (811) are provided below the second step portion (3112) at the end of the embedded frame (111) away from the mounting block (320). The two triangular lifting transmission components (811) have triangular cross sections and increase in size sequentially along the sliding direction of the second step portion (3112). They are used for the valve column assembly to slide in quickly and be supported by the corresponding first transmission plate (614) and second transmission plate (615).

7. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 4, characterized in that: The embedded frame (111) is also provided with a repair tank device, which includes a liquid storage tank (511). The liquid storage tank (511) is provided with a pump body, and a first connector (512) and a corrugated telescopic tube (513) connected in sequence to the pump body. The end of the corrugated telescopic tube (513) away from the first connector (512) is connected to an extension end (3141) on the end of the first storage cavity (314). The top of the second storage cavity (315) is provided with an openable cover.

8. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 4, characterized in that: The first storage cavity (314) has an end block (316) fixed at one end near the grouting pipe fitting. The end block (316) is detachably installed with the connecting block (317) via a locking pin (318). The upper surface of one side of the embedded frame (111) is also provided with a linear pull rod mechanism, which is used to connect with the end block (316) and drive the zipper body (319) and the reinforcing shell to run synchronously.

9. A zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 8, characterized in that: The linear tie rod mechanism includes a back plate (416), a second sprocket (414) and a first sprocket (412) rotatable at both ends of the back plate (416), and a chain (411) meshing with the second sprocket (414) and the first sprocket (412). A crossbar (415) connected to the end block (316) is horizontally fixed at the lower part of the chain (411), and a first motor (413) is fixedly mounted on the back plate (416). The output shaft of the first motor (413) passes through the through hole on the back plate (416) and is fixedly connected to the second sprocket (414).

10. The zipper-type self-healing structure integrating crack monitoring and active reinforcement according to claim 1, characterized in that: The grouting fitting includes a mounting block (320) fixed to the end of the zipper body (319), and a grouting interface (321) is provided through the mounting block (320) for connecting with the repair grouting equipment to inject grout into the crack and the area below the zipper.

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