Concrete floor crack repairing device

Abstract

This application relates to a concrete floor crack repair device, comprising a base with rollers rotatably connected to the four corners of the base's bottom. A protective box with an open top is mounted on the upper surface of the base, containing a storage tank. Inside the storage tank is a mixing assembly, which is driven to rotate by a first drive assembly. A grouting pipe is connected to the bottom of the storage tank via a valve. A first pump body is mounted at the end of the grouting pipe, and a flexible pipe is installed at the outlet of the first pump body. The flexible pipe extends out of the protective box and connects to a grouting nozzle. A moving mechanism capable of driving the grouting nozzle up and down is mounted on one side of the base, and a smoothing mechanism is mounted on the other side of the base. Push rods are symmetrically arranged on both sides of the protective box. This utility model integrates mixing, grouting, and smoothing functions, providing efficient repair, convenient cleaning and maintenance, and significantly improving the quality and efficiency of concrete floor crack repair.

Description

Technical Field

[0001] This application relates to the field of floor repair equipment technology, and in particular to a device for repairing cracks in concrete floors. Background Technology

[0002] Concrete floors, with their excellent wear resistance and load-bearing capacity, are widely used in industrial plants, warehouses, parking lots, and other building applications. However, due to environmental temperature changes, uneven foundation settlement, and long-term vehicle traffic, concrete floors are highly susceptible to cracking. These cracks not only damage the appearance of the floor but also allow moisture to seep in, causing steel reinforcement corrosion and severely weakening the floor's load-bearing capacity and service life. Currently, concrete floor crack repair relies heavily on manual grouting and hand-smoothing. Manually mixing repair materials is inefficient, and uneven mixing can affect repair quality. Precise control of grout volume and depth is difficult, easily leading to insufficient or excessive grouting. Hand-smoothing requires highly skilled operators, produces inconsistent results, and is labor-intensive, making it unsuitable for large-scale crack repair needs. Utility Model Content

[0003] This invention addresses the problems of low repair efficiency and unstable quality in existing technologies by providing a concrete floor crack repair device.

[0004] The objective of this utility model is mainly achieved through the following solution:

[0005] A concrete floor crack repair device includes a base with rollers rotatably connected to the four corners of the base's bottom. A protective box with an open top is mounted on the upper surface of the base. A storage tank is installed inside the protective box, and a mixing assembly is installed inside the storage tank. The mixing assembly is driven to rotate by a first drive assembly. A grouting pipe is connected to the bottom of the storage tank via a valve. A first pump body is installed at the end of the grouting pipe, and a flexible pipe is installed at the outlet of the first pump body. The flexible pipe extends out of the protective box and connects to a grouting nozzle. A moving mechanism capable of moving the grouting nozzle up and down is installed on one side of the base, and a smoothing mechanism is installed on the other side of the base. Push rods are also symmetrically arranged on both sides of the protective box.

[0006] The storage tank preferably has a top opening, and a tank cover is detachably and fixedly installed on its top. A feed inlet is provided on one side of the tank cover, and the first drive assembly is installed in the middle of the upper surface of the tank cover.

[0007] Preferably, the stirring assembly includes a rotating shaft and multiple sets of stirring blades installed on the outer wall of the rotating shaft. A support rod is installed in the upper part of the storage tank, and a bearing seat is installed in the middle of the support rod. The top of the rotating shaft passes through the bearing seat and is fixedly connected to the output end of the first drive assembly.

[0008] Preferably, a circular cleaning pipe is coaxially installed at the top of the storage tank. A ring of spray nozzles is evenly arranged around the inner side of the cleaning pipe along its axis. A first pipe is connected to one side of the cleaning pipe. A second pump body is installed on the upper surface of the base. One end of the first pipe extends out of the storage tank and is connected to the outlet of the second pump body. A second pipe is connected to the inlet of the second pump body and is connected to an external water source.

[0009] Preferably, the moving mechanism includes a longitudinally arranged first slide rail, which is fixedly installed on the base. A first slider is slidably connected to the first slide rail. A vertically arranged second slide rail is installed on the upper surface of the first slider. A second slider is slidably connected to the upper surface of the second slide rail. A first telescopic component is installed on the top of the second slide rail via a support plate. The telescopic end of the first telescopic component is connected to the top of the second slider. An L-shaped plate is installed on the side wall of the second slider. The grouting nozzle is vertically fixedly installed on the lower part of the L-shaped plate.

[0010] Preferably, the smoothing mechanism includes a support base, a second telescopic component, a third telescopic component, a linkage rod, a support frame, and a smoothing plate. The support base is fixedly installed on the base. One end of the second telescopic component is rotatably connected to the lower part of the support base, and the other end of the second telescopic component is rotatably connected to the bottom of the linkage rod away from the support base. One end of the third telescopic component is rotatably connected to the middle of the side wall of the linkage rod, and the other end of the third telescopic component is rotatably connected to the upper surface of the smoothing plate. The support frame is fixedly installed on the upper surface of the smoothing plate. One end of the linkage rod is rotatably connected to the top of the support base, and the other end of the linkage rod is rotatably connected to the top of the support frame.

[0011] Preferably, the side of the squeegee plate closest to the base is provided with an arc-shaped portion, and the side of the squeegee plate furthest from the base is provided with an arc-shaped groove.

[0012] Preferably, the inner side of the arc-shaped groove is detachably connected to a replacement plate that matches its shape.

[0013] Preferably, both ends of the arc-shaped groove are equipped with baffles that protrude from the sidewall of the trowel plate.

[0014] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0015] (1) This utility model integrates material mixing, grouting and smoothing functions through the storage tank, grouting nozzle and smoothing mechanism, which greatly improves the efficiency of repairing cracks in concrete floors, reduces manual operation and reduces labor intensity.

[0016] (2) The moving mechanism in this utility model can precisely adjust the position and height of the grouting nozzle to achieve precise grouting. The arc part and arc groove set in the smearing plate in the smoothing mechanism, through the operation process of first pressing and filling, and then scraping, ensures that the repair area is flat and significantly improves the repair quality.

[0017] (3) In this utility model, the stirring assembly inside the storage tank fully stirs the material under the drive of the first drive assembly, ensuring uniform mixing; the cleaning pipe and spray nozzle, together with the second pump body, the first pipe and the second pipe, can conveniently and quickly clean the storage tank, avoiding material residue from affecting subsequent use. Attached Figure Description

[0018] Figure 1 This is the front view of the concrete floor crack repair device of this utility model;

[0019] Figure 2 This is a top view of the concrete floor crack repair device of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the storage tank in the concrete floor crack repair device of this utility model;

[0021] Figure 4 This is a schematic diagram of the smoothing mechanism in the concrete floor crack repair device of this utility model;

[0022] Figure 5 This is a schematic diagram of the moving mechanism in the concrete floor crack repair device of this utility model.

[0023] Reference numerals: 1-Base; 2-Roller; 3-Protective box; 4-Storage tank; 5-First drive assembly; 6-Valve; 7-Grouting pipe; 8-First pump body; 9-Flexible pipe; 10-Grouting nozzle; 11-Push rod; 12-Tank cover; 13-Inlet; 14-Rotating shaft; 15-Agitator blade; 16-Support rod; 17-Bearing seat; 18-Cleaning pipe; 19-Spray nozzle; 20-First pipe; 21-Second pump body; 22-Second pipe; 23-First slide rail; 24-First slider; 25-Second slide rail; 26-Second slider; 27-Support plate; 28-First telescopic assembly; 29-L-shaped plate; 30-Support base; 31-Second telescopic assembly; 32-Third telescopic assembly; 33-Linkage rod; 34-Support frame; 35-Smoothing plate; 36-Arc portion; 37-Arc groove; 38-Replacement plate; 39-Blocking plate. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0025] Example 1:

[0026] like Figure 1 , 2 As shown, this utility model discloses a technical solution: a concrete floor crack repair device, including a base 1. Rollers 2 are rotatably connected to the four corners of the base 1 via rotating shafts. A protective box 3 with a top opening is bolted to the upper surface of the base 1. A hollow storage tank 4 is bolted inside the protective box 3. A mixing assembly is installed inside the storage tank 4, and a first drive assembly 5 drives the mixing assembly to rotate, ensuring that the repair material is fully and evenly mixed. A grouting pipe 7 is connected to the bottom of the storage tank 4 via a valve 6. The end of the grouting pipe 7 is connected to a first pump body 8. The outlet of the first pump body 8... A flexible pipe 9 is installed at the opening. After the flexible pipe 9 extends out of the protective box 3, it is connected to the grouting nozzle 10. The first pump body 8 can squeeze the repair material in the storage tank 4 through the grouting pipe 7 and the flexible pipe 9 from the grouting nozzle 10 to realize crack grouting. A moving mechanism that can drive the grouting nozzle 10 to move up and down is installed on the right side of the base 1. The height of the grouting nozzle 10 can be precisely adjusted according to the crack depth and position. A smoothing mechanism is installed on the left side of the base 1. After the grouting is completed, the repair area is smoothed. The side wall of the protective box 3 is also symmetrically installed with left and right push rods 11 by bolts to facilitate manual pushing of the device.

[0027] The rollers 2 facilitate the movement of the device, allowing it to flexibly reach different crack repair locations. The storage tank 4, in conjunction with the mixing component, can mix the repair material, ensuring material uniformity and providing high-quality material for subsequent grouting. The moving mechanism can adjust the position and height of the grouting nozzle 10 to adapt to cracks of different depths and locations, achieving precise grouting. The smoothing mechanism processes the repaired area after grouting to ensure a smooth floor surface. The push rod 11 facilitates manual pushing of the device. The entire solution realizes an integrated operation for concrete floor crack repair, from material preparation and grouting to smoothing.

[0028] Example 2:

[0029] like Figure 3As shown, this utility model discloses another technical solution, a concrete floor crack repair device, which differs from embodiment 1 in that the top of the storage tank 4 is open, and the top of the tank is detachably fixed with a tank cover 12 by bolts. One side of the tank cover 12 is provided with a feed port 13 that communicates with the inside of the storage tank 4. The first drive component 5 is a motor, which is fixedly installed in the middle of the upper surface of the tank cover 12 by bolts, and its output shaft passes through the tank cover 12 and extends into the storage tank 4.

[0030] Specifically, the mixing assembly includes a rotating shaft 14 and multiple sets of mixing blades 15 bolted to the outer wall of the rotating shaft 14. A support rod 16 is bolted to the upper part of the storage tank 4, and a bearing seat 17 is embedded in the middle of the support rod 16. The top of the rotating shaft 14 passes through the bearing seat 17 and is fixedly connected to the output end of the first drive assembly 5 by a coupling. The rotating shaft 14 rotates under the drive of the first drive assembly 5, so that the mixing blades 15 can fully mix the material in the storage tank and ensure that the material is mixed evenly. The support rod 16 and the bearing seat 17 support and position the rotating shaft 14, reduce shaking during rotation, improve the stability of the mixing assembly, thereby ensuring the mixing effect, ensuring the reliability of the repair material quality, and improving the overall quality of crack repair.

[0031] Specifically, a circular cleaning pipe 18 is coaxially welded to the top of the storage tank 4. A ring of spray nozzles 19 is evenly arranged around the inner side of the cleaning pipe 18 along its axis. The spray nozzles 19 are threadedly connected to the cleaning pipe 18. A first pipe 20 is connected to one side of the cleaning pipe 18. A second pump body 21 is bolted to the upper surface of the base 1. One end of the first pipe 20 extends out of the storage tank 4 and is connected to the outlet of the second pump body 21. A second pipe 22 is connected to the inlet of the second pump body 21 and is connected to an external water source. The second pump body 21 delivers external water to the cleaning pipe 18 through the pipe and sprays water into the storage tank 4 through the spray nozzles 19. This can thoroughly clean the inner wall of the storage tank 4, the mixing components, etc., quickly and effectively removing residual repair materials, ensuring the cleanliness of the inside of the storage tank, avoiding contamination of subsequent repair materials by residual materials, ensuring the purity of materials each time they are used, and providing a good material storage environment for high-quality crack repair.

[0032] Example 3:

[0033] like Figure 1 , 5As shown, this utility model discloses another technical solution, a concrete floor crack repair device. The difference from Embodiment 1 is that the moving mechanism includes a longitudinally arranged first slide rail 23, which is bolted to the right side of the base 1. A first slider 24 is slidably connected to the first slide rail 23. A vertically arranged second slide rail 25 is bolted to the upper surface of the first slider 24. A second slider 26 is slidably connected to the second slide rail 25. A first telescopic component 28 is fixedly installed on the top of the second slide rail 25 via a support plate 27. The telescopic end of the first telescopic component 28 is bolted to the top of the second slider 26. An L-shaped plate 29 is fixedly installed on the side wall of the second slider 26 by bolts, and the grouting nozzle 10 is vertically fixedly installed on the lower part of the L-shaped plate 29. Through the sliding cooperation of the first slide rail 23 and the first slider 24, the grouting nozzle 10 can move in the horizontal direction. Through the sliding cooperation of the second slide rail 25 and the second slider 26, the first telescopic component 28 can adjust the height of the second slider 26, thereby driving the grouting nozzle 10 to move up and down, so that the grouting nozzle 10 can accurately align with cracks at different positions and depths, meet the needs of repairing various complex cracks, and improve the accuracy and flexibility of grouting. In this application, the telescopic component adopts a push rod motor.

[0034] Example 4:

[0035] like Figure 1 , 4 As shown, this utility model discloses another technical solution: a concrete floor crack repair device. The difference from Embodiment 1 is that the smoothing mechanism includes a support base 30, a second telescopic component 31, a third telescopic component 32, a linkage rod 33, a support frame 34, and a smoothing plate 35. The support base 30 is fixedly installed on the left side of the base 1 by bolts. One end of the second telescopic component 31 is rotatably connected to the lower part of the support base 30 via a rotating shaft. The other end of the second telescopic component 31 is rotatably connected to the bottom of the linkage rod 33 on the side away from the support base 30 via a rotating shaft. The third telescopic component 32... One end of component 32 is rotatably connected to the middle of the side wall of linkage rod 33 via a pivot shaft. The other end of the third telescopic component 32 is rotatably connected to the upper surface of squeegee 35 via a pivot shaft. Support frame 34 is fixedly installed on the upper surface of squeegee 35 by bolts. One end of linkage rod 33 is rotatably connected to the top of support base 30 via a pivot shaft. The other end of linkage rod 33 is rotatably connected to the top of support frame 34 via a pivot shaft. The second telescopic component 31 and the third telescopic component 32 drive linkage rod 33 to move through telescopic movement, thereby adjusting the height and angle of squeegee 35.

[0036] Specifically, the right side of the screed plate 35 is provided with an arc-shaped part 36, and the left side of the screed plate 35 is provided with an arc-shaped groove 37. The arc-shaped part 36 makes the screed plate 35 more smoothly contact the ground when it flattens and fills the repair area, and can better compact the repair material so that the material tightly fills the cracks; the arc-shaped groove 37 can effectively remove excess material during the leveling operation, ensuring that the repaired floor surface is flat and smooth.

[0037] Specifically, the inner side of the arc groove 37 is detachably connected to a metal replacement plate 38 that matches its shape via bolts, so that the replacement plate 38 can be easily and quickly replaced after wear, without having to replace the entire trowel plate 35, thus reducing the cost of use.

[0038] Specifically, the front and rear ends of the arc groove 37 are also fixed with baffle plates 39 protruding from the side wall of the trowel plate 35 by bolts. The baffle plates 39 can concentrate the removed slurry when the trowel plate 35 is leveled, preventing the slurry from scattering everywhere and making it easier to clean.

[0039] The concrete floor crack repair device provided by this utility model is equipped with a PLC controller, and the electrical components are controlled by the PLC controller. Its specific structure and working principle are not within the protection scope of this application, and can be easily derived by those skilled in the art, so they will not be described here.

[0040] The concrete floor crack repair device provided by this utility model is used by adding an appropriate amount of concrete floor crack repair material into the storage tank 4 through the feed inlet 13 on the tank cover 12, closing the tank cover 12, starting the first drive component 5, driving the mixing component to mix the material until it is uniform; pushing the push rod 11 to move the device to the crack to be repaired, and adjusting the height of the grouting nozzle 10 according to the crack depth through the first telescopic component 28 to align it with the crack; opening the valve 6, starting the first pump body 8, and discharging the repair material in the storage tank 4 through the grouting pipe 7 and the flexible pipe 9 from the grouting nozzle 10. During the grouting process, the position of the grouting nozzle 10 can be manually adjusted with the help of the first slide rail 23 to ensure that the crack is fully filled. After the grouting is completed, the second telescopic component 31 is activated to adjust the height of the squeegee 35, and the third telescopic component 32 is activated to adjust the angle of the squeegee 35 so that the arc part 36 contacts the repair area and pushes the device forward. The arc part 36 is used to flatten and fill the repair area. Then, the angle of the squeegee 35 is adjusted again by the third telescopic component 32 so that the arc groove 37 acts on the repair area to remove excess material and make the repaired floor surface flat.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A concrete floor crack repair device, comprising a base (1), wherein rollers (2) are rotatably connected to the four corners of the bottom of the base (1), characterized in that: The upper surface of the base (1) is equipped with a protective box (3) with a top opening. A storage tank (4) is installed inside the protective box (3). A stirring assembly is installed inside the storage tank (4), and the stirring assembly is driven to rotate by a first driving assembly (5). The bottom of the storage tank (4) is connected to a grouting pipe (7) through a valve (6). A first pump body (8) is installed at the end of the grouting pipe (7). A flexible pipe (9) is installed at the outlet of the first pump body (8). The flexible pipe (9) extends out of the protective box (3) and is connected to a grouting nozzle (10). A moving mechanism capable of driving the grouting nozzle (10) to move up and down is installed on one side of the base (1). A smoothing mechanism is installed on the other side of the base (1). Push rods (11) are also symmetrically arranged on both sides of the protective box (3).

2. The concrete floor crack repair device according to claim 1, characterized in that: The storage tank (4) has an opening at the top and a tank cover (12) is detachably and fixedly installed on its top. The tank cover (12) has a feed inlet (13) on one side. The first drive assembly (5) is installed in the middle of the upper surface of the tank cover (12).

3. The concrete floor crack repair device according to claim 2, characterized in that: The stirring assembly includes a rotating shaft (14) and multiple sets of stirring blades (15) installed on the outer wall of the rotating shaft (14). A support rod (16) is installed in the upper part of the storage tank (4). A bearing seat (17) is installed in the middle of the support rod (16). The top of the rotating shaft (14) passes through the bearing seat (17) and is fixedly connected to the output end of the first drive assembly (5).

4. The concrete floor crack repair device according to claim 3, characterized in that: A circular cleaning pipe (18) is coaxially installed at the top of the storage tank (4). A ring of spray nozzles (19) is uniformly arranged around the inner side of the cleaning pipe (18) along its axis. A first pipe (20) is connected to one side of the cleaning pipe (18). A second pump body (21) is installed on the upper surface of the base (1). One end of the first pipe (20) extends out of the storage tank (4) and is connected to the outlet of the second pump body (21). A second pipe (22) is connected to the inlet of the second pump body (21). The second pipe (22) is connected to an external water source.

5. The concrete floor crack repair device according to claim 1, characterized in that: The moving mechanism includes a first slide rail (23) arranged longitudinally, which is fixedly installed on the base (1). A first slider (24) is slidably connected to the first slide rail (23). A second slide rail (25) is installed on the upper surface of the first slider (24). A second slider (26) is slidably connected to the upper surface of the second slide rail (25). A first telescopic component (28) is installed on the top of the second slide rail (25) through a support plate (27). The telescopic end of the first telescopic component (28) is connected to the top of the second slider (26). An L-shaped plate (29) is installed on the side wall of the second slider (26). The grouting nozzle (10) is vertically fixedly installed on the lower part of the L-shaped plate (29).

6. The concrete floor crack repair device according to claim 1, characterized in that: The smoothing mechanism includes a support base (30), a second telescopic component (31), a third telescopic component (32), a linkage rod (33), a support frame (34), and a smoothing plate (35). The support base (30) is fixedly installed on the base (1). One end of the second telescopic component (31) is rotatably connected to the lower part of the support base (30), and the other end of the second telescopic component (31) is rotatably connected to the bottom of the linkage rod (33) away from the support base (30). One end of the third telescopic component (32) is rotatably connected to the middle of the side wall of the linkage rod (33), and the other end of the third telescopic component (32) is rotatably connected to the upper surface of the smoothing plate (35). The support frame (34) is fixedly installed on the upper surface of the smoothing plate (35). One end of the linkage rod (33) is rotatably connected to the top of the support base (30), and the other end of the linkage rod (33) is rotatably connected to the top of the support frame (34).

7. The concrete floor crack repair device according to claim 6, characterized in that: The smearing plate (35) has an arc-shaped part (36) on the side near the base (1), and an arc-shaped groove (37) is provided on the side of the smearing plate (35) away from the base (1).

8. The concrete floor crack repair device according to claim 7, characterized in that: The inner side of the arc-shaped groove (37) is detachably connected to a replacement plate (38) that is adapted to its shape.

9. The concrete floor crack repair device according to claim 8, characterized in that: Both ends of the arc-shaped groove (37) are equipped with baffle plates (39) that protrude from the side wall of the trowel plate (35).

Images