Concrete defect repair device and repair method

Abstract

The present invention belongs to the technical field of concrete repair, specifically a concrete defect repair device and repair method, comprising a base; a group of driving wheels are provided on the lower side of the base; an electric telescopic rod and a storage box are fixedly connected to the upper side of the base; the upper end of the electric telescopic rod is fixedly connected to the machine base; a rotating shaft is rotatably connected inside the machine base; one end of the rotating shaft is fixedly connected to a turntable; a group of scrapers are evenly distributed on the circumference of the turntable surface; grouting holes are provided inside the rotating shaft and the turntable; the grouting holes are aligned with the defects on the wall, the grouting pump is started, and the concrete inside the storage box enters the defect along the grouting pipe and the grouting hole, and the rotating shaft is driven to rotate by the driving component, so that the scraper rotates and scrapes on the concrete surface to smooth the repaired concrete. The device integrates grouting and smoothing, has a high degree of automation, can improve the flatness of the concrete after smoothing, and improves the repair quality of the concrete wall.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete repair, in particular to a concrete defect repair device and a repair method. Background Art

[0002] Concrete walls are prone to various quality problems during the construction process, such as uneven mixing, loose vibration, excessive gaps between formwork, inadequate temperature control, etc., all of which may lead to defects in the concrete wall and affect the structural strength and aesthetics of the concrete. Therefore, it is necessary to repair the defects in the concrete wall after construction.

[0003] With regard to the existing related technologies, the inventors believe that the following defects often exist: when repairing defects on concrete walls in the existing technology, concrete is usually manually applied to the defects on the wall using a trowel, and then the concrete is smoothed with the trowel. This method requires a lot of manpower, the operation is relatively cumbersome, and the manual smoothing technology is uneven, resulting in poor flatness of the repaired wall.

[0004] To this end, the present invention provides a concrete defect repairing device and a repairing method. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a concrete defect repair device described in the present invention comprises a base; a group of driving wheels are provided on the lower side of the base; an electric telescopic rod and a storage box are fixedly connected to the upper side of the base; concrete is stored in the storage box; the upper end of the electric telescopic rod is fixedly connected to the base; a rotating shaft is rotatably connected to the inside of the base; a driving assembly is provided inside the base, and the driving assembly is used to control the rotation of the rotating shaft; one end of the rotating shaft extending outside the base is fixedly connected to a turntable; a group of scrapers are evenly distributed on the circumference of the turntable surface; grouting holes are provided inside the rotating shaft and the turntable, and the grouting holes are connected to the storage box through a grouting pipe and a grouting pump; when repairing defects on concrete walls in the prior art, concrete is usually manually troweled with a trowel. The trowel is used to smooth the concrete on the defective part of the wall. This method consumes a lot of manpower and is cumbersome to operate. In addition, the manual smoothing technology is uneven, and the flatness of the repaired wall is poor. At this time, when repairing the concrete wall, the driving wheel is controlled to move the device to the corresponding position, and the electric telescopic rod is adjusted to align the grouting hole with the defective part of the wall, and then the grouting pump is started to make the concrete inside the storage box enter the defect along the grouting pipe and the grouting hole. After that, the driving assembly drives the rotating shaft to rotate, so that multiple scrapers rotate and scrape on the concrete surface, thereby smoothing the repaired concrete. The device integrates grouting and smoothing, has a high degree of automation, saves manpower, and can improve the flatness of the concrete after smoothing, thereby improving the quality of repairing the concrete wall.

[0007] Preferably, a movable head is slidably connected to the inside of the grouting hole, and the movable head is flush with the surface of the turntable; a porous plate is fixedly connected to the inside of the grouting hole; a spring is fixedly connected between the porous plate and the movable head; a center hole is opened inside one end of the movable head close to the porous plate; a group of guide holes are evenly distributed on the circumferential surface of the movable head away from the porous plate, and the guide holes are connected to the center hole; by setting the movable head, when concrete enters the grouting hole through the grouting pipe, the concrete can pass through the porous plate and push the movable head to slide outward, stretching the spring, and then the movable head extends into the defect of the wall surface, and the concrete is then discharged outward through the center hole and the guide hole, which can improve the degree of filling of the defect by concrete, and after grouting is stopped, the spring pulls the movable head to reset, so that the end of the movable head is flush with the surface of the turntable, and then the movable head can fill the grouting hole when smoothing, and no columnar protrusions will be formed on the wall surface after smoothing, further improving the quality of wall repair.

[0008] Preferably, a shield is provided on the outside of the scraper, and the shield is fixedly connected to the machine base; an elastic ring is fixedly connected to the side of the shield away from the machine base; the scraper easily swings the concrete around when it rotates, and by providing the shield, the shield can be pressed against the wall around the defect when the device is moved, thereby blocking the concrete splashing outward, so that the concrete is collected inside the shield, avoiding the concrete splashing everywhere and causing pollution, and by providing the elastic ring, the degree of fit between the shield and the wall can be improved, thereby improving the blocking effect on the concrete.

[0009] Preferably, an annular protrusion is provided on the inner side of the elastic ring, and an annular recess is formed between the protrusion and the baffle; a recovery pipe is fixedly connected to the bottom of the baffle; one end of the recovery pipe extends to the inside of the recess, and the other end is connected to the storage box through a recovery pump; by providing the recess, the concrete splashing outward is blocked by the baffle, and will fall to the bottom of the baffle along the recess, and then the recovery pump is started, and the concrete collected at the bottom of the baffle is pumped back into the storage box through the recovery pipe, so that the excess concrete can be recycled and reused, which is beneficial to cost saving.

[0010] Preferably, the scraper is made of iron; an annular elastic cloth is fixedly connected to the inside of the recessed portion, and there is a gap between the elastic cloth and the recessed portion; a group of movable plates are evenly distributed on the outer circumference of the shield; a spring is fixedly connected between the movable plate and the shield; a striker rod is fixedly connected to the side of the movable plate close to the shield, and the striker rod passes through the shield and is slidably connected to it; the striker rod is made of magnetic material; by arranging the elastic cloth, the splashing concrete contacts the elastic cloth when it hits the shield, and since some concrete easily adheres to the surface of the elastic cloth, when the concrete hits the elastic cloth again, it can drive the elastic cloth to shake, and shake off the concrete on the surface of the elastic cloth downwards, and as the scraper rotates, when the scraper rotates to a position close to the striker rod, an attraction is generated between the two, thereby driving the striker rod to move and knock the elastic cloth, further prompting the elastic cloth to shake, and shaking off the concrete adhered to the surface of the elastic cloth to the bottom of the shield, which is beneficial to improving the collection efficiency of the recovery pipe for concrete.

[0011] Preferably, an annular air storage chamber is provided inside the elastic ring; a group of air holes are evenly distributed on the circumference of one side of the elastic ring away from the machine base, and the air holes are connected to the air storage chamber; by setting the air storage chamber and the air holes, when the baffle is pressed against the wall, the elastic ring is squeezed, and then the air inside the air storage chamber is ejected outward through the air holes, blowing away the impurities on the wall, preventing the presence of a large number of impurities between the wall and the elastic ring, resulting in a decrease in the degree of fit between the wall and the elastic ring, so as to improve the sealing and prevent the concrete from overflowing.

[0012] Preferably, a groove is provided on the surface of the elastic ring near the air hole; a support sheet is fixedly connected to the inside of the groove, and the air hole passes through the support sheet; the support sheet is arranged in an arc shape, and the convex surface of the support sheet faces the air storage cavity; by arranging the groove and the support sheet, when the elastic ring is squeezed, the support sheet can be supported between the elastic ring and the wall, thereby maintaining a certain distance between the air hole and the wall, so that the air inside the air storage cavity can be smoothly ejected through the air hole, avoiding the problem of the air hole being blocked by the wall and the air being unable to be ejected.

[0013] Preferably, a pair of mounting plates are fixedly connected to the surface of the elastic cloth near the impact rod; a group of rubber fins are evenly distributed on one side of the mounting plates close to each other, and the tips of the rubber fins are facing away from the impact rod; a pair of hooks are fixedly connected to one end of the impact rod close to the elastic cloth, and the convex surface of the hooks faces the elastic cloth; when the impact rod moves toward the elastic cloth, the end of the impact rod passes through between the pair of mounting plates and knocks the elastic cloth, and when the impact rod moves away from the elastic cloth, the hooks and the rubber fins engage with each other and pull the elastic cloth to deform through the mounting plates. After the elastic cloth is deformed to a certain extent, the rubber fins are difficult to continue to support and deform, and then the hooks pass over the rubber fins. At this time, the elastic cloth will rebound in the direction away from the impact rod under the action of its own elastic force, thereby bouncing up the concrete remaining on its surface, further promoting the concrete to converge to the bottom of the baffle, and improving the separation efficiency between the concrete and the elastic cloth.

[0014] A method for repairing concrete defects, using the above-mentioned concrete defect repairing device, comprises the following steps:

[0015] S1: Move the device to the designated position by controlling the driving wheel and adjust the electric telescopic rod so that the grouting hole is aligned with the defect on the concrete wall;

[0016] S2: Start the grouting pump, and the concrete enters the grouting hole through the grouting pipe, pushing the movable head to slide outward, and then the movable head extends into the defect on the wall. Then the concrete is injected into the defect through the center hole and the guide hole;

[0017] S3: The driving assembly drives the rotating shaft to rotate, so that the scraper rotates and scrapes the concrete surface, thereby smoothing the repaired concrete.

[0018] Preferably, the method further comprises the following steps:

[0019] S4: The shield blocks the concrete splashing outward, so that the concrete falls along the depression to the bottom of the shield and is collected;

[0020] S5: Start the recovery pump and pump the concrete collected at the bottom of the shield back into the storage box through the recovery pipe to recycle the excess concrete.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The concrete defect repairing device and repairing method described in the present invention, when repairing a concrete wall, controls the driving wheel to move the device to the corresponding position, and adjusts the electric telescopic rod so that the grouting hole is aligned with the defect on the wall, and then starts the grouting pump, so that the concrete inside the storage box enters the defect along the grouting pipe and the grouting hole, and then drives the rotating shaft to rotate through the driving component, so that multiple scrapers rotate and scrape on the concrete surface, thereby smoothing the repaired concrete. The device integrates grouting and smoothing into one, has a high degree of automation, can save manpower, and can improve the flatness of the concrete after smoothing, thereby improving the repair quality of the concrete wall.

[0023] 2. The concrete defect repairing device and repairing method described in the present invention, by setting a movable head, when concrete enters the grouting hole through the grouting pipe, the concrete can pass through the porous plate and push the movable head to slide outward, stretching the spring, and then the movable head extends into the defect inside the wall surface, and the concrete is then discharged outward through the center hole and the guide hole, which can improve the filling degree of the concrete for the defect, and after the grouting is stopped, the spring pulls the movable head to reset, so that the end of the movable head is flush with the surface of the turntable, and then the movable head can fill the grouting hole when smoothing, and no columnar protrusions will be formed on the wall surface after smoothing, further improving the repair quality of the wall surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 It is a perspective view of the present invention;

[0026] Figure 2 It is a cross-sectional view of the shield in the present invention;

[0027] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0028] Figure 4 is a cross-sectional view of the rotating shaft of the present invention;

[0029] Figure 5 It is a partial cross-sectional view of the elastic ring in the present invention;

[0030] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0031] Figure 7 It is a schematic flow chart of the method of the present invention.

[0032] In the figure: base 1, driving wheel 2, electric telescopic rod 3, storage box 4, machine base 5, rotating shaft 6, turntable 7, scraper 8, grouting hole 9, grouting pipe 10, grouting pump 11, movable head 12, porous plate 13, spring 14, center hole 15, guide hole 16, baffle 17, elastic ring 18, protrusion 19, recessed portion 20, recovery pipe 21, recovery pump 22, elastic cloth 23, movable plate 24, spring 25, striker 26, air storage chamber 27, air hole 28, support piece 29, mounting piece 30, rubber fin 31, hook 32. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] Example 1

[0035] like Figures 1 to 4 As shown, a concrete defect repair device described in an embodiment of the present invention includes a base 1; a group of driving wheels 2 are provided on the lower side of the base 1; an electric telescopic rod 3 and a storage box 4 are fixedly connected to the upper side of the base 1; concrete is stored in the storage box 4; the upper end of the electric telescopic rod 3 is fixedly connected to the organic base 5; a rotating shaft 6 is rotatably connected to the inside of the machine base 5; a driving component is provided inside the machine base 5, and the driving component is used to control the rotation of the rotating shaft 6; the rotating shaft 6 extends to the end outside the machine base 5 and is fixedly connected to a turntable 7; a group of scrapers 8 are evenly distributed on the circumference of the turntable 7; grouting holes 9 are opened inside the rotating shaft 6 and the turntable 7, and the grouting holes 9 are connected to the storage box 4 through a grouting pipe 10 and a grouting pump 11; when repairing defects on concrete walls in the prior art, concrete is usually manually troweled with a trowel. The method of smearing soil on the defects of the wall and then smoothing the concrete with a trowel requires a lot of manpower, is cumbersome to operate, and the manual smoothing technology is uneven, and the flatness of the repaired wall is poor. At this time, when repairing the concrete wall, the device is moved to the corresponding position by controlling the driving wheel 2, and the electric telescopic rod 3 is adjusted so that the grouting hole 9 is aligned with the defect of the wall, and then the grouting pump 11 is started, so that the concrete inside the storage box 4 enters the defect along the grouting pipe 10 and the grouting hole 9, and then the driving assembly drives the rotating shaft 6 to rotate, so that multiple scrapers 8 rotate and scrape on the concrete surface, thereby smoothing the repaired concrete. The device integrates grouting and smoothing, has a high degree of automation, can save manpower, and can improve the flatness of the concrete after smoothing, thereby improving the repair quality of the concrete wall.

[0036] The grouting hole 9 is slidably connected to a movable head 12, and the movable head 12 is flush with the surface of the turntable 7; the grouting hole 9 is fixedly connected to a porous plate 13; a spring 14 is fixedly connected between the porous plate 13 and the movable head 12; a center hole 15 is opened inside the end of the movable head 12 close to the porous plate 13; a group of guide holes 16 are evenly distributed on the peripheral surface of the movable head 12 away from the porous plate 13, and the guide holes 16 are connected to the center hole 15; by setting the movable head 12, when concrete enters the grouting hole 9 through the grouting pipe 10, Concrete can pass through the porous plate 13 and push the movable head 12 to slide outward, stretching the spring 14, and then the movable head 12 extends into the defect of the wall. The concrete is then discharged outward through the center hole 15 and the guide hole 16, which can improve the degree to which the concrete fills the defect. After the grouting is stopped, the spring 14 pulls the movable head 12 to reset, so that the end of the movable head 12 is flush with the surface of the turntable 7, and then the movable head 12 can fill the grouting hole 9 when smoothing. After smoothing, no columnar protrusions will be formed on the wall, further improving the quality of the wall repair.

[0037] A shield 17 is provided on the outside of the scraper 8, and the shield 17 is fixedly connected to the machine base 5; an elastic ring 18 is fixedly connected to the side of the shield 17 away from the machine base 5; when the scraper 8 rotates, it is easy to swing the concrete around. By providing the shield 17, when the device is moved, the shield 17 can be pressed against the wall around the defect, thereby blocking the concrete splashing outward, so that the concrete is collected inside the shield 17, avoiding the concrete splashing everywhere and causing pollution. By providing the elastic ring 18, the degree of fit between the shield 17 and the wall can be improved, thereby improving the blocking effect on the concrete.

[0038] An annular protrusion 19 is provided on the inner side of the elastic ring 18, and an annular recess 20 is formed between the protrusion 19 and the baffle 17; a recovery pipe 21 is fixedly connected to the bottom of the baffle 17; one end of the recovery pipe 21 extends to the inside of the recess 20, and the other end is connected to the storage box 4 through a recovery pump 22; by providing the recess 20, the concrete splashing outward is blocked by the baffle 17, and will fall to the bottom of the baffle 17 along the recess 20, and then the recovery pump 22 is started, and the concrete collected at the bottom of the baffle 17 is pumped back into the storage box 4 through the recovery pipe 21, so that the excess concrete can be recycled and reused, which is beneficial to cost saving.

[0039] The scraper 8 is made of iron; a ring-shaped elastic cloth 23 is fixedly connected to the inside of the recessed portion 20, and there is a gap between the elastic cloth 23 and the recessed portion 20; a group of movable plates 24 are evenly distributed on the outer circumference of the shield 17; a spring 25 is fixedly connected between the movable plate 24 and the shield 17; a striker 26 is fixedly connected to the side of the movable plate 24 close to the shield 17, and the striker 26 passes through the shield 17 and is slidably connected thereto; the striker 26 is made of magnetic material; by providing the elastic cloth 23, the splashing concrete hits the shield 17 and is in contact with the elastic cloth 23. The scraper 8 is in contact with the elastic cloth 23. Since some concrete easily adheres to the surface of the elastic cloth 23, when the concrete hits the elastic cloth 23 again, it can drive the elastic cloth 23 to shake, and shake off the concrete on the surface of the elastic cloth 23 downwards. As the scraper 8 rotates, when the scraper 8 rotates to a position close to the impact rod 26, an attraction is generated between the two, which drives the impact rod 26 to move and hit the elastic cloth 23, further prompting the elastic cloth 23 to shake, and shake off the concrete adhered to the surface of the elastic cloth 23 to the bottom of the shield 17, which is beneficial to improving the collection efficiency of the recovery pipe 21 for concrete.

[0040] Example 2

[0041] like Figures 5 and 6 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: an annular air storage chamber 27 is provided inside the elastic ring 18; a group of air holes 28 are evenly distributed on the circumference of one side of the elastic ring 18 away from the machine base 5, and the air holes 28 are connected to the air storage chamber 27; by providing the air storage chamber 27 and the air holes 28, when the shield 17 is pressed against the wall, the elastic ring 18 is squeezed, and then the air inside the air storage chamber 27 is ejected outward through the air holes 28, blowing away the impurities on the wall, preventing the presence of a large number of impurities between the wall and the elastic ring 18, resulting in a decrease in the degree of fit between the wall and the elastic ring 18, so as to improve the sealing and prevent the concrete from overflowing.

[0042] A groove is provided on the surface of the elastic ring 18 near the air hole 28; a support sheet 29 is fixedly connected to the inside of the groove, and the air hole 28 passes through the support sheet 29; the support sheet 29 is arranged to be arc-shaped, and the convex surface of the support sheet 29 faces the air storage chamber 27; by providing the groove and the support sheet 29, when the elastic ring 18 is squeezed, the support sheet 29 can be supported between the elastic ring 18 and the wall, thereby allowing the air hole 28 to maintain a certain distance from the wall, so that the air inside the air storage chamber 27 can be smoothly ejected through the air hole 28, avoiding the problem of the air being unable to be ejected after the air hole 28 is blocked by the wall.

[0043] A pair of mounting pieces 30 are fixedly connected to the surface of the elastic cloth 23 near the striker 26; a group of rubber fins 31 are evenly distributed on the side of the mounting pieces 30 close to each other, and the tips of the rubber fins 31 are facing away from the striker 26; a pair of hooks 32 are fixedly connected to the end of the striker 26 close to the elastic cloth 23, and the convex surface of the hooks 32 faces the elastic cloth 23; when the striker 26 moves toward the elastic cloth 23, the end of the striker 26 passes between the pair of mounting pieces 30 and knocks the elastic cloth 23. When the striker 26 moves away from the elastic cloth 23, the end of the striker 26 passes through the pair of mounting pieces 30 and knocks the elastic cloth 23. When the elastic cloth 23 moves, the hooks 32 and the rubber fins 31 engage with each other and pull the elastic cloth 23 to deform through the mounting plate 30. After the elastic cloth 23 is deformed to a certain extent, the rubber fins 31 can no longer support it and deform, and then the hooks 32 pass over the rubber fins 31. At this time, the elastic cloth 23 will rebound in the direction away from the impact rod 26 under the action of its own elastic force, thereby bouncing off the concrete remaining on its surface, further promoting the concrete to gather at the bottom of the baffle 17, and improving the separation efficiency between the concrete and the elastic cloth 23.

[0044] like Figure 7 As shown, a concrete defect repair method, which uses the above-mentioned concrete defect repair device, includes the following steps:

[0045] S1: Move the device to the designated position by controlling the driving wheel 2 and adjust the electric telescopic rod 3 so that the grouting hole 9 is aligned with the defect on the concrete wall;

[0046] S2: Start the grouting pump 11, and the concrete enters the grouting hole 9 through the grouting pipe 10, pushing the movable head 12 to slide outward, and then the movable head 12 extends into the defect of the wall surface. Then the concrete is injected into the defect through the center hole 15 and the guide hole 16;

[0047] S3: The driving assembly drives the rotating shaft 6 to rotate, so that the scraper 8 rotates and scrapes the concrete surface, thereby smoothing the repaired concrete.

[0048] The method further comprises the following steps:

[0049] S4: The shield 17 blocks the concrete splashing outward, so that the concrete falls along the recessed portion 20 to the bottom of the shield 17 and is collected;

[0050] S5: Start the recovery pump 22 to pump the concrete collected at the bottom of the shield 17 back into the storage box 4 through the recovery pipe 21 to recycle the excess concrete.

[0051] Working principle: When repairing a concrete wall, the device is moved to the corresponding position by controlling the driving wheel 2, and the electric telescopic rod 3 is adjusted so that the grouting hole 9 is aligned with the defect on the wall, and then the grouting pump 11 is started, so that the concrete inside the storage box 4 enters the defect along the grouting pipe 10 and the grouting hole 9, and then the driving component drives the rotating shaft 6 to rotate, so that the multiple scrapers 8 rotate and scrape on the concrete surface, thereby smoothing the repaired concrete. This device integrates grouting and smoothing into one, with a high degree of automation, which can save manpower, and can improve the flatness of the concrete after smoothing, thereby improving the quality of repairing the concrete wall; by setting the movable head 12, when the concrete After the concrete enters the grouting hole 9 through the grouting pipe 10, the concrete can pass through the porous plate 13 and push the movable head 12 to slide outward, stretching the spring 14, and then the movable head 12 extends into the defect inside the wall, and the concrete is then led outward through the center hole 15 and the guide hole 16, which can improve the filling degree of the concrete into the defect, and after the grouting is stopped, the spring 14 pulls the movable head 12 to reset, so that the end of the movable head 12 is flush with the surface of the turntable 7, and then the movable head 12 can fill the grouting hole 9 when smoothing, and no columnar protrusions will be formed on the wall after smoothing, further improving the quality of the wall repair; when the scraper 8 rotates, it is easy to swing the concrete around, and the concrete is poured out through the center hole 15 and the guide hole 16. The shield 17 is provided. When the device is moved, the shield 17 can be pressed against the wall around the defect, thereby blocking the concrete splashing outward, so that the concrete is collected inside the shield 17, and the concrete splashing everywhere is avoided. The elastic ring 18 can improve the fit between the shield 17 and the wall, thereby improving the blocking effect of the concrete; by providing the recessed portion 20, the concrete splashing outward is blocked by the shield 17, and then falls to the bottom of the shield 17 along the recessed portion 20, and then the recovery pump 22 is started, and the concrete collected at the bottom of the shield 17 is pumped back into the storage box 4 through the recovery pipe 21, so that the excess concrete is recycled and reused. This is beneficial to cost saving; by providing the elastic cloth 23, the splashing concrete comes into contact with the elastic cloth 23 when it hits the shield 17. Since some concrete easily adheres to the surface of the elastic cloth 23, when the concrete hits the elastic cloth 23 again, it can drive the elastic cloth 23 to shake, and the concrete on the surface of the elastic cloth 23 is shaken downwards. Moreover, as the scraper 8 rotates to a position close to the striker 26, an attraction is generated between the two, which drives the striker 26 to move and hit the elastic cloth 23, further causing the elastic cloth 23 to shake, and the concrete adhered to the surface of the elastic cloth 23 is shaken off to the bottom of the shield 17, which is beneficial to improving the collection efficiency of the recovery pipe 21 for concrete;By providing the air storage chamber 27 and the air hole 28, when the shield 17 is pressed against the wall, the elastic ring 18 is squeezed, and the air inside the air storage chamber 27 is ejected outwards through the air hole 28, blowing away the impurities on the wall, and preventing the problem of a large number of impurities between the wall and the elastic ring 18, which leads to a decrease in the degree of fit between the wall and the elastic ring 18, thereby improving the sealing and preventing the concrete from overflowing outwards; by providing the groove and the support piece 29, when the elastic ring 18 is squeezed, the support piece 29 can be supported between the elastic ring 18 and the wall, thereby keeping a certain distance between the air hole 28 and the wall, so that the air inside the air storage chamber 27 can be ejected smoothly through the air hole 28, and the air hole 28 is prevented from being blocked by the wall. This causes the problem of air being unable to be ejected; when the striker 26 moves toward the elastic cloth 23, the end of the striker 26 passes between the pair of mounting plates 30 and strikes the elastic cloth 23. When the striker 26 moves away from the elastic cloth 23, the hook 32 and the rubber fin 31 engage with each other and pull the elastic cloth 23 through the mounting plates 30 to deform. After the elastic cloth 23 deforms to a certain extent, the rubber fin 31 can no longer support it and deforms, and then the hook 32 passes over the rubber fin 31. At this time, the elastic cloth 23 will rebound away from the striker 26 under its own elastic force, thereby bouncing off the concrete remaining on its surface, further promoting the concrete to gather at the bottom of the shield 17, and improving the separation efficiency between the concrete and the elastic cloth 23.

[0052] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0054] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete defect repair device, characterized by: The invention comprises a base (1); a group of driving wheels (2) are provided on the lower side of the base (1); an electric telescopic rod (3) and a storage box (4) are fixedly connected to the upper side of the base (1); concrete is stored in the storage box (4); the upper end of the electric telescopic rod (3) is fixedly connected to a base (5); a rotating shaft (6) is rotatably connected to the base (5); a driving assembly is provided inside the base (5), and the driving assembly is used to control the rotation of the rotating shaft (6); one end of the rotating shaft (6) extending outside the base (5) is fixedly connected to a turntable (7); a group of scrapers (8) are evenly distributed on the circumference of the surface of the turntable (7); grouting holes (9) are provided inside the rotating shaft (6) and the turntable (7), and the grouting holes (9) are connected to the storage box (4) through a grouting pipe (10) and a grouting pump (11); A shield (17) is provided on the outside of the scraper (8), and the shield (17) is fixedly connected to the machine base (5); an elastic ring (18) is fixedly connected to the side of the shield (17) away from the machine base (5); An annular protrusion (19) is provided inside the elastic ring (18), and an annular recess (20) is formed between the protrusion (19) and the shield (17); a recovery pipe (21) is fixedly connected to the bottom of the shield (17); one end of the recovery pipe (21) extends into the interior of the recess (20), and the other end is communicated with the storage box (4) through a recovery pump (22); The scraper (8) is made of iron; a ring-shaped elastic cloth (23) is fixedly connected inside the recessed portion (20), and a gap exists between the elastic cloth (23) and the recessed portion (20); a group of movable plates (24) are evenly distributed on the outer circumference of the shield (17); a second spring (25) is fixedly connected between the movable plate (24) and the shield (17); a striker (26) is fixedly connected to the side of the movable plate (24) close to the shield (17), and the striker (26) passes through the shield (17) and is slidably connected thereto; the striker (26) is made of magnetic material; A pair of mounting plates (30) are fixedly connected to the surface of the elastic cloth (23) at positions close to the striker (26); a group of rubber fins (31) are evenly distributed on the sides of the mounting plates (30) close to each other, and the tips of the rubber fins (31) face away from the striker (26); a pair of curved hooks (32) are fixedly connected to one end of the striker (26) close to the elastic cloth (23), and the convex surfaces of the curved hooks (32) face toward the elastic cloth (23).

2. The concrete defect repairing device according to claim 1, characterized in that: A movable head (12) is slidably connected inside the grouting hole (9), and the movable head (12) is flush with the surface of the turntable (7); a porous plate (13) is fixedly connected inside the grouting hole (9); a spring (14) is fixedly connected between the porous plate (13) and the movable head (12); a center hole (15) is provided inside one end of the movable head (12) close to the porous plate (13); a group of guide holes (16) are uniformly distributed on the peripheral surface of the movable head (12) away from the porous plate (13), and the guide holes (16) are connected to the center hole (15).

3. The concrete defect repairing device according to claim 2, characterized in that: An annular air storage cavity (27) is provided inside the elastic ring (18); a group of air holes (28) are evenly distributed on the circumference of one side of the elastic ring (18) away from the machine base (5), and the air holes (28) are communicated with the air storage cavity (27).

4. The concrete defect repairing device according to claim 3, characterized in that: A groove is provided on the surface of the elastic ring (18) near the air hole (28); a support sheet (29) is fixedly connected to the inside of the groove, and the air hole (28) passes through the support sheet (29); the support sheet (29) is arranged in an arc shape, and the convex surface of the support sheet (29) faces the air storage cavity (27).

5. A method for repairing concrete defects, the method using the concrete defect repairing device according to claim 4, characterized in that: The following steps are involved: S1: The device is moved to a designated position by controlling the driving wheel (2), and the electric telescopic rod (3) is adjusted so that the grouting hole (9) is aligned with the defect on the concrete wall surface; S2: Start the grouting pump (11), and the concrete enters the grouting hole (9) through the grouting pipe (10), pushing the movable head (12) to slide outward, and then the movable head (12) extends into the defect of the wall surface, and then the concrete is injected into the defect through the center hole (15) and the guide hole (16); S3: The driving assembly drives the rotating shaft (6) to rotate, so that the scraper (8) rotates and scrapes the concrete surface, thereby smoothing the repaired concrete; S4: The concrete splashing outward is blocked by the shield (17), so that the concrete falls along the recessed portion (20) to the bottom of the shield (17), and the concrete is collected; S5: Start the recovery pump (22) to pump the concrete collected at the bottom of the shield (17) back into the storage box (4) through the recovery pipe (21), and recycle the excess concrete.

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