Concrete floor crack sealing safety reinforcement device and method

Abstract

The present invention discloses a safety reinforcement device for plugging cracks in concrete slabs, comprising a reinforcement groove arranged on the slab along the crack, a reinforcement rod inserted in the reinforcement groove, an adjusting locking structure connected to inner walls on both sides opposite to the reinforcement groove arranged in the reinforcement rod, and a fixing structure fixedly connected to the surfaces on both sides of the crack in the slab by bolts arranged on the top of the reinforcement rod. The present invention connects the two side walls forming a V-shape in the reinforcement groove by adjusting the locking structure, fixes the reinforcement rod by using the fixing structure, and then adjusts the connection direction of the adjusting locking structure and the reinforcement rod to be respectively parallel to the two inner walls forming the V-shape in the reinforcement groove, so that the adjusting locking structure applies a combined force formed by the combination of component forces in two directions parallel to the slab and perpendicular to the slab downward to the side walls of the reinforcement groove, thereby avoiding further cracking of the crack after reinforcement, resulting in the adjustment locking structure being disconnected from the reinforcement groove and causing reinforcement failure.

Description

Technical Field

[0001] The invention relates to the technical field of floor slab reinforcement, and in particular to a concrete floor slab crack sealing and safety reinforcement device and method. Background Art

[0002] In the field of construction, floor slabs are generally constructed using cast-in-place concrete. However, due to the physical property of concrete itself that expands with heat and contracts with cold, concrete floor slabs will develop cracks on the surface due to changes in external temperature after long-term use. The cracks will gradually extend into the interior of the concrete floor slab and become narrow, long, and deep, thus causing water leakage in the building.

[0003] The existing method for sealing and reinforcing cracks in floor slabs generally involves driving fixed structures into both sides of the cracks in the floor slabs, and connecting the fixed structures on both sides of the cracks by steel cables to apply a force parallel to the floor slabs, thereby limiting the floor slabs from continuing to settle to both sides of the cracks so that the cracks further open, and then filling the cracks with resin to smooth them out. However, when sealing and reinforcing in the existing manner, the steel cables are used to limit the floor slabs from continuing to crack to both sides. The limiting force applied by the steel cables to the floor slabs is in the horizontal direction, so that when the floor slabs and filling materials further expand, the fixed structures are easily deflected in the direction of the cracks by the force of the expansion and gradually detach from the floor slab upwards. The lack of force to limit the fixed structures from detaching in a direction perpendicular to the floor slabs can easily lead to the problem of reinforcement failure when the cracks further open at a later stage. Summary of the invention

[0004] The purpose of the present invention is to provide a concrete floor crack plugging and safety reinforcement device and method, which solves the problem that when sealing and reinforcing cracks, the existing steel cables are used to apply force in the horizontal direction to pull the floor slabs on both sides of the cracks, but there is a lack of force to limit the connection and separation from the floor slabs in the direction perpendicular to the floor slabs, which leads to further cracking of the cracks in the later stage and causes reinforcement failure.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A concrete floor crack plugging safety reinforcement device, comprising a reinforcement groove arranged on the floor along the crack, a reinforcement rod inserted in the reinforcement groove, an adjustment locking structure connected to the inner walls on both sides opposite to the reinforcement groove arranged in the reinforcement rod, and a fixing structure fixedly connected to the surfaces on both sides of the floor crack by bolts arranged on the top of the reinforcement rod;

[0007] Among them, the reinforcement groove is a V-shaped groove and is symmetrical about the vertical plane of the floor, and the reinforcement rod is fixedly inserted in the inner bottom of the reinforcement groove. The adjustment locking structure is fixedly connected to the inner wall of the reinforcement groove by bolts along a direction perpendicular to the surface of the floor, and the connection direction of the adjustment locking structure and the reinforcement groove is adjusted along the axial movement of the reinforcement rod.

[0008] As a preferred solution of the present invention, the adjustment locking structure includes an adjustment groove arranged inside the reinforcement rod along the axial direction of the reinforcement rod, an adjustment component is arranged in the adjustment groove, and the inner side wall of the adjustment groove is provided with a straight line groove connected to the outside of the reinforcement plate along a straight line passing through the center and parallel to the floor slab, and a tensioning component is arranged at the end of the reinforcement rod away from the bottom of the reinforcement groove, and the tensioning component is connected to two steel cables whose ends are respectively fixedly connected to bolts fixed on the inner side wall of the reinforcement groove;

[0009] Wherein, the linear groove extends along the axial direction of the reinforcement rod, and the adjustment component is movably connected to the steel cable and adjusts the steel cable to be parallel to the side wall of the reinforcement groove along a linear motion, and the tensioning component tightens the steel cable by winding and unwinding.

[0010] As a preferred solution of the present invention, the adjustment assembly includes a connecting seat slidably connected in the adjustment groove and moving along the axial direction of the reinforcement rod, and two through grooves are arranged on the connecting seat along the axial direction of the reinforcement rod for the steel cable to pass through and connect with the tensioning assembly. The middle part of the connecting seat is threadedly connected with an adjustment rod rotatably connected to the inner wall of the adjustment groove, and the adjustment rod passes through the connecting seat and extends to the outside of the reinforcement rod in a direction away from the bottom of the reinforcement groove.

[0011] As a preferred solution of the present invention, both ends of the through slot communicating with the two sides of the connecting seat are rotatably connected to two groove rollers along a straight line parallel to the floor slab;

[0012] Among them, the rotation center lines of the two groove rollers on the same side are parallel to the side walls where the reinforcement groove is connected to the steel cable and are parallel to the surface of the floor slab, and the grooves on the two groove rollers on the same side are in corresponding contact for the steel cable to pass through.

[0013] As a preferred solution of the present invention, the adjusting rod includes a threaded section threadedly connected to the connecting seat and a movable turning handle movably connected to one end of the threaded section. The movable turning handle is L-shaped and fits with the end of the reinforcement rod through magnetic force.

[0014] As a preferred solution of the present invention, the tensioning assembly includes a winding roller which is rotatably connected to the end of the reinforcement rod away from the bottom of the reinforcement groove through a torsion spring, and the winding roller is provided with a locking assembly which limits the rotation of the winding roller by snapping, and the rotation center of the winding roller is parallel to the plane perpendicular to the side wall of the reinforcement groove to which the bolts are connected.

[0015] As a preferred solution of the present invention, the locking assembly includes a support arranged on the reinforcement rod for rotatably connecting the winding roller, the support is rotatably connected to a worm, the worm is meshed with a worm wheel rotatably connected to the support, one side of the worm wheel is fixedly connected to a limiting rod, the surface of the winding roller is slidably connected to a baffle plate that moves along the rotation center line of the winding roller through a spring, and when the winding roller winds up the steel cable, the baffle plate is pushed to move to a position between the two ends of the winding roller.

[0016] As a preferred solution of the present invention, limiting holes are provided on the surface of the winding roller and the baffle, and when the baffle is located between the two ends of the winding roller, the baffle is simultaneously inserted into the two limiting holes by a latch.

[0017] As a preferred solution of the present invention, two winding grooves for winding the steel cable are provided on the surface of the winding roller around the rotation center line, and the winding grooves are V-shaped along the axial section of the winding roller.

[0018] In order to solve the above technical problems, the present invention further provides the following technical solutions:

[0019] A reinforcement method for a concrete floor crack blocking safety reinforcement device, comprising the steps of:

[0020] S100, a reinforcement groove is opened along the crack of the floor slab, and two V-shaped side walls formed in the reinforcement groove are located on both sides of the crack;

[0021] S200, fix the reinforcement rod to the bottom of the reinforcement groove, and connect the steel cable to the two side walls of the reinforcement groove to form a V shape by bolts, and the connection direction of the bolts is perpendicular to the floor slab;

[0022] S300, adjust the angle of the steel cable through the adjustment component to be parallel to the two side walls forming a V shape in the reinforcement groove, then tighten the steel cable through the tensioning component, fill the reinforcement groove with grout and smooth the ground.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention adjusts the locking structure to connect with the two side walls forming a V-shape in the reinforcement groove, uses the fixing structure to fix the reinforcement rod, and then adjusts the connection direction of the locking structure and the reinforcement rod to be parallel to the two inner walls forming the V-shape in the reinforcement groove, so that the locking structure is adjusted to apply a combined force formed by the combination of the component forces in the downward directions parallel to the floor slab and perpendicular to the floor slab to the side walls of the reinforcement groove, thereby avoiding further cracking after reinforcement, resulting in the adjustment of the locking structure and the reinforcement groove being disconnected and causing reinforcement failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] Figure 1 A structural schematic diagram of a concrete floor crack plugging and safety reinforcement device is provided for an embodiment of the present invention;

[0027] Figure 2 A partial structural schematic diagram of an adjustment and locking structure is provided for an embodiment of the present invention;

[0028] Figure 3 Provided for embodiments of the present invention Figure 1 A schematic diagram of the structure enlargement of part A shown in FIG.

[0029] Figure 4 A schematic flow chart of a reinforcement method of a concrete floor crack plugging and safety reinforcement device is provided for an embodiment of the present invention.

[0030] The numbers in the figure represent the following:

[0031] 1-reinforcement groove; 2-reinforcement rod; 3-adjustment locking structure; 4-fixing structure;

[0032] 301-adjusting slot; 302-adjusting assembly; 303-straight slot; 304-tensioning assembly; 305-steel cable; 306-connecting seat; 307-through slot; 308-adjusting rod; 309-groove roller; 310-threaded section; 311-movable handle; 312-winding roller; 313-locking assembly; 314-support; 315-worm; 316-worm wheel; 317-limiting rod; 318-baffle; 319-limiting hole; 320-winding slot. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] like Figures 1 to 3As shown, the present invention provides a concrete floor crack plugging safety reinforcement device, including a reinforcement groove 1 arranged on the floor along the crack, a reinforcement rod 2 is inserted in the reinforcement groove 1, an adjustment locking structure 3 connected to the inner walls on both sides opposite to the reinforcement groove 1 is arranged in the reinforcement rod 2, and a fixing structure 4 fixedly connected to the surfaces on both sides of the floor crack by bolts is arranged on the top of the reinforcement rod 2.

[0036] Among them, the reinforcement groove 1 is a V-shaped groove and is symmetrical about the vertical plane of the floor, and the reinforcement rod 2 is fixedly inserted in the inner bottom of the reinforcement groove 1, and the adjustment locking structure 3 is fixedly connected to the inner wall of the reinforcement groove 1 along the direction perpendicular to the floor surface by bolts, and the connection direction of the adjustment locking structure 3 and the reinforcement groove 1 is adjusted along the axial movement of the reinforcement rod 2.

[0037] When the present invention is in use, the reinforcement groove 1 is arranged on the floor slab along the crack, and two V-shaped side walls formed in the reinforcement groove are located on both sides of the crack.

[0038] The reinforcement rod 2 is then fixed to the inner bottom of the reinforcement groove 1, and the reinforcement rod 2 is fixedly connected to the positions on both sides of the floor crack through the fixing structure 4. For example, the fixing structure 4 includes a fixing plate fixedly connected to the reinforcement rod 2, and the fixing plate is fixed to the positions on both sides of the floor crack by bolts. Other methods that meet the actual reinforcement requirements and meet the requirements for fixing the reinforcement rod 2 on the floor are also acceptable.

[0039] After the reinforcement rod 2 is fixed, the adjusting locking structure 3 is connected to the two V-shaped side walls in the reinforcement groove 1 through bolts to form a traction relationship, so that the fixed reinforcement rod 2 uses the adjusting locking structure 3 to apply force to the side walls of the reinforcement groove 1 to tighten the floor slabs on both sides of the crack.

[0040] At the same time, the locking structure 3 is adjusted to adjust the connection direction between the inner wall of the reinforcement groove 1 to be parallel to the two side walls forming a V shape in the reinforcement groove 1, so that the direction in which the force applied by the locking structure 3 is adjusted has separation in two directions parallel to the floor slab and perpendicular to the floor slab downward, which not only ensures the tightening and reinforcement of the floor slabs on both sides of the crack, but also limits the tendency of the bolts connected to the inner wall of the reinforcement groove 1 to be deflected and detached from the inner wall of the reinforcement groove 1 due to cracking of the floor slab.

[0041] In this embodiment, the bolts connected to the floor slab and to the inner wall of the reinforcement groove 1 are both expansion bolts.

[0042] After completing the reinforcement of the cracks, fill in relevant materials, compact them and then smooth them. The materials can be resin or other materials that meet the actual usage requirements.

[0043] The adjustment locking structure 3 includes an adjustment groove 301 arranged inside the reinforcement rod 2 along the axial direction of the reinforcement rod 2, an adjustment component 302 is arranged in the adjustment groove 301, and the inner wall of the adjustment groove 301 is provided with a straight groove 303 connected to the outside of the reinforcement plate 2 along a straight line passing through the center and parallel to the floor, and a tensioning component 304 is arranged on the end of the reinforcement rod 2 away from the bottom of the reinforcement groove 1, and the tensioning component 304 is connected to the steel cable 305 whose two ends are respectively fixedly connected to the bolts fixed on the inner wall of the reinforcement groove 1.

[0044] The linear groove 304 extends along the axial direction of the reinforcing rod 2, and the adjusting component 302 is movably connected to the steel cable 305 and moves linearly to adjust the steel cable 305 to be parallel to the side wall of the reinforcing groove 1, and the tensioning component 304 tightens the steel cable 305 by winding and unwinding.

[0045] When the adjustment and locking structure 3 is in use, one end of the two steel cables 305 is respectively connected to the corresponding bolts fixed on the inner wall of the reinforcement groove 1, and the other ends are connected to the tensioning assembly 304 through the linear groove 303 and the adjustment groove 301.

[0046] Then, the angle of the steel cable 305 is adjusted by the adjustment component 302 along the axial movement of the reinforcement rod 2 to be parallel to the V-shaped side wall in the reinforcement groove 1, and then the steel cable 305 is tightened by the tensioning component 304 so that the force applied by the steel cable 305 to the side wall of the reinforcement groove 1 reaches a preset value.

[0047] The direction of the force applied by the steel cable 305 to the bolt is parallel to the side wall of the reinforcement groove 1, so that the applied force can simultaneously have a force parallel to the floor slab and toward the direction of the crack and a force perpendicular to the floor slab downward, which not only ensures that the floor slabs on both sides of the crack are tightened to form a reinforcement effect, but also has the effect of limiting the bolt from detaching from the inner wall of the reinforcement groove 1, avoiding the problem of further cracking of the crack causing the bolt to be deflected under the traction of the steel cable 305 and then move upward to detach from the reinforcement groove 1, resulting in reinforcement failure.

[0048] The adjusting assembly 302 includes a connecting seat 306 which is slidably connected in the adjusting groove 301 and moves along the axial direction of the reinforcing rod 2. Two through grooves 307 for the steel cable 305 to pass through and connect with the tensioning assembly 304 are arranged on the connecting seat 306 along the axial direction of the reinforcing rod 2. The middle part of the connecting seat 306 is threadedly connected with an adjusting rod 308 which is rotatably connected to the inner wall of the adjusting groove 301, and the adjusting rod 308 passes through the connecting seat 306 and extends to the outside of the reinforcing rod 2 in a direction away from the bottom of the reinforcing groove 1.

[0049] When the adjustment component 302 is in use, the adjustment rod 308 drives the connecting seat 306 to move up and down along the adjustment groove 301, so that the steel cable 305 passing through the through groove 307 is driven by the connecting seat 306 to adjust the angle to be parallel to the inner wall of the reinforcement groove 1 on the corresponding side, so that the steel cable 305 is applied to the floor slab in parallel and perpendicular to the floor slab downward at the same time, which not only ensures that the floor slabs on both sides of the crack are tightened to form a reinforcement effect, but also has the effect of limiting the bolts from detaching from the inner wall of the reinforcement groove 1, avoiding the problem that when the crack further cracks, the bolts are deflected under the traction of the steel cable 305 and then move upward to detach from the reinforcement groove 1, resulting in reinforcement failure.

[0050] Both ends of the through slot 307 communicating with the connecting seat 306 are rotatably connected to two groove rollers 309 along a straight line parallel to the floor.

[0051] The rotation center lines of the two groove rollers 309 on the same side are parallel to the side wall connecting the reinforcement groove 1 and the steel cable 305 and are parallel to the surface of the floor slab, and the grooves on the two groove rollers 309 on the same side are in corresponding contact for the steel cable 305 to pass through.

[0052] The grooves on the two groove rollers 309 correspond to each other to form a space for the steel cable 305 to pass through, and avoid the steel cable 305 from rubbing against the two end notches of the through slot 307 during the angle adjustment process to cause wear and affect the reinforcement effect.

[0053] The adjusting rod 308 includes a threaded section 310 threadedly connected to the connecting seat 306 and a movable handle 311 movably connected to one end of the threaded section 310 . The movable handle 311 is L-shaped and fits with the end of the reinforcing rod 2 through magnetic force.

[0054] When the adjusting rod 308 is in use, the movable handle 311 is rotated until one side of the L-shape is almost parallel to the threaded segment 310, and a force is applied by the other side of the L-shape of the movable handle 311 to drive the threaded segment 310 to rotate, thereby driving the connecting seat 306 to move in the adjusting slot 301.

[0055] The movable handle 311 is provided to fit with the end of the reinforcement rod 2 through magnetic force when not in use, so as to prevent random movement from affecting the normal operation of other structures, and to prevent the overall height of the adjustment rod 308 from affecting the thickness of the floor slab after compaction and smoothing. The L-shaped movable handle 311 is convenient for applying force, thereby improving the convenience of use.

[0056] The tensioning assembly 304 includes a winding roller 312 which is rotatably connected to the end of the reinforcement rod 2 away from the bottom of the reinforcement groove 1 through a torsion spring, and a locking assembly 313 is provided on the winding roller 312 for limiting the rotation of the winding roller 312 by clamping, and the rotation center of the winding roller 312 is parallel to the plane perpendicular to the side wall of the reinforcement groove 1 to which the bolts are connected.

[0057] When the tensioning assembly 304 is in use, the winding roller 312 is rotated to wind up or release the steel cable 305 to ensure that the steel cable 305 has a sufficient length when adjusting the angle. At this time, the locking assembly 313 does not restrict the winding roller 312 .

[0058] When the angle of the steel cable 305 is adjusted by the adjustment component 302, a traction force is generated on the winding roller 312, so that the winding roller 312 rotates to compress the torsion spring or the torsion spring gradually restores its deformation, and the steel cable 305 is automatically wound up through the elastic force of the torsion spring, thereby improving the convenience of use.

[0059] The rotation of the reel 312 is limited by the locking assembly 313, so that the stability of the steel cable 305 can be ensured after being tightened, thereby ensuring the stability of the floor reinforcement.

[0060] The locking assembly 313 includes a support 314 arranged on the reinforcement rod 2 for rotationally connecting to the winding roller 312, the support 314 is rotatably connected to the worm 315, the worm 315 is meshed with a worm wheel 316 rotatably connected to the support 314, one side of the worm wheel 316 is fixedly connected to a limiting rod 317, the surface of the winding roller 312 is slidably connected to a baffle plate 318 that moves along the rotation center line of the winding roller 312 through a spring, and when the winding roller 312 reels the steel cable 305, the baffle plate 318 is pushed to move to a position between the two ends of the winding roller 312.

[0061] When the locking assembly 313 does not restrict the rotation of the winding roller 312 , the baffle 318 is manually pushed to compress the spring to move between the two ends of the winding roller 312 , so that the winding roller 312 can rotate freely to adjust the length of the steel cable 305 .

[0062] When the steel cable 305 is adjusted to be parallel to the side wall of the reinforcement groove 1, the baffle 318 is released, so that the baffle 318 extends to the outside of the winding roller 312 under the elastic force of the spring and abuts against one side of the support 314. At this time, the driving worm 315 rotates to drive the worm wheel 316 to rotate, so that the limit rod 317 rotates synchronously to abut against the baffle 318. The self-locking limit between the worm wheel 316 and the worm 315 limits the reverse rotation of the winding roller 312 to release the steel cable 305, thereby ensuring that the steel cable 305 always remains taut to tighten the reinforced floor slab.

[0063] Limiting holes 319 are provided on the surface of the winding roller 312 and the baffle 318 , and when the baffle 318 is located between the two ends of the winding roller 312 , the baffle 318 is inserted into the two limiting holes 319 at the same time through a latch.

[0064] The latch is inserted into the two limiting holes 319 at the same time to limit the baffle 318 to be located between the two ends of the winding roller 312, thereby avoiding the need to manually limit the position of the baffle 318 and improving the convenience of use.

[0065] Two winding grooves 320 for winding the steel cable 305 are arranged on the surface of the winding roller 312 around the rotation center line, and the winding grooves 320 have a V-shaped cross section along the axial direction of the winding roller 312 .

[0066] The reeling groove 320 is provided to accommodate the steel cables 305 on the corresponding side, so as to prevent the steel cables 305 from being dispersed and twisted together during the reeling process.

[0067] Furthermore, the V-shaped reeling groove 320 allows the steel cable 305 to automatically gather inside the reeling groove 305 when being reeled in.

[0068] Embodiment 2:

[0069] like Figure 4 As shown, the present invention also provides a reinforcement method for a concrete floor crack blocking safety reinforcement device, comprising the steps of:

[0070] S100, a reinforcement groove is opened along the crack of the floor slab, and two V-shaped side walls formed in the reinforcement groove are located on both sides of the crack;

[0071] S200, fix the reinforcement rod to the bottom of the reinforcement groove, and connect the steel cable to the two side walls of the reinforcement groove to form a V shape by bolts, and the connection direction of the bolts is perpendicular to the floor slab;

[0072] S300, adjust the angle of the steel cable through the adjustment component to be parallel to the two side walls forming a V shape in the reinforcement groove, then tighten the steel cable through the tensioning component, fill the reinforcement groove with grout and smooth the ground.

[0073] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A concrete floor crack sealing and safety reinforcement device, characterized in that: It comprises a reinforcement groove arranged on the floor along the crack, a reinforcement rod is inserted in the reinforcement groove, an adjustment locking structure connected to the inner walls on both sides opposite to the reinforcement groove is arranged in the reinforcement rod, and a fixing structure fixedly connected to the surfaces on both sides of the crack of the floor by bolts is arranged on the top of the reinforcement rod; Wherein, the reinforcement groove is a V-shaped groove and is symmetrical about the vertical plane of the floor slab, and the reinforcement rod is fixedly inserted in the inner bottom of the reinforcement groove, and the adjustment locking structure is fixedly connected to the inner wall of the reinforcement groove along the direction perpendicular to the floor slab surface by bolts, and the connection direction of the adjustment locking structure and the reinforcement groove is adjusted along the axial movement of the reinforcement rod; The adjusting and locking structure comprises an adjusting groove arranged inside the reinforcing rod along the axial direction of the reinforcing rod, an adjusting assembly is arranged in the adjusting groove, a linear groove connected to the outside of the reinforcing rod is arranged on the inner side wall of the adjusting groove along a straight line passing through the center and parallel to the floor slab, a tensioning assembly is arranged at the end of the reinforcing rod away from the bottom of the reinforcing groove, and the tensioning assembly is connected to a steel cable whose ends are respectively fixedly connected to bolts fixed on the inner side wall of the reinforcing groove; Wherein, the linear groove extends along the axial direction of the reinforcement rod, and the adjustment component is movably connected to the steel cable and adjusts the steel cable to be parallel to the side wall of the reinforcement groove along a linear motion, and the tensioning component tightens the steel cable by winding and unwinding.

2. A concrete floor crack sealing and safety reinforcement device according to claim 1, characterized in that: The adjustment assembly includes a connecting seat which is slidably connected in the adjustment groove and moves along the axial direction of the reinforcement rod. The connecting seat is provided with two through grooves along the axial direction of the reinforcement rod for the steel cable to pass through and connect with the tensioning assembly. The middle part of the connecting seat is threadedly connected with an adjustment rod which is rotatably connected to the inner wall of the adjustment groove, and the adjustment rod passes through the connecting seat and extends to the outside of the reinforcement rod in a direction away from the bottom of the reinforcement groove.

3. A concrete floor crack sealing and safety reinforcement device according to claim 2, characterized in that: Both ends of the through slot communicating with the two sides of the connecting seat are connected to two groove rollers for rotation along a straight line parallel to the floor; Among them, the rotation center lines of the two groove rollers on the same side are parallel to the side walls where the reinforcement groove is connected to the steel cable and are parallel to the surface of the floor slab, and the grooves on the two groove rollers on the same side are in corresponding contact for the steel cable to pass through.

4. A concrete floor crack sealing and safety reinforcement device according to claim 2, characterized in that: The adjusting rod comprises a threaded section threadedly connected to the connecting seat and a movable turning handle movably connected to one end of the threaded section. The movable turning handle is L-shaped and fits with the end of the reinforcing rod through magnetic force.

5. A concrete floor crack sealing and safety reinforcement device according to claim 1, characterized in that: The tensioning assembly includes a winding roller which is rotatably connected to the end of the reinforcement rod away from the bottom of the reinforcement groove through a torsion spring, and the winding roller is provided with a locking assembly which limits the rotation of the winding roller by snapping, and the rotation center of the winding roller is parallel to the plane perpendicular to the side wall of the reinforcement groove to which the bolts are connected.

6. A concrete floor crack sealing and safety reinforcement device according to claim 5, characterized in that: The locking assembly includes a support arranged on the reinforcement rod for rotatably connecting to the winding roller, the support is rotatably connected to a worm, the worm is meshed with a worm wheel rotatably connected to the support, one side of the worm wheel is fixedly connected to a limiting rod, the surface of the winding roller is slidably connected to a baffle plate that moves along the rotation center line of the winding roller through a spring, and the baffle plate is pushed to move to a position between the two ends of the winding roller when the winding roller winds up the steel cable.

7. A concrete floor crack sealing and safety reinforcement device according to claim 6, characterized in that: Limiting holes are arranged on the surface of the winding roller and the baffle plate, and when the baffle plate is located between the two ends of the winding roller, the baffle plate is inserted into the two limiting holes at the same time through a latch.

8. A concrete floor crack sealing and safety reinforcement device according to claim 5, characterized in that: Two winding grooves for winding the steel cable are arranged around the rotation center line on the surface of the winding roller, and the axial section of the winding groove along the winding roller is V-shaped.

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