Concrete crack control device and construction method

Abstract

The invention discloses a concrete crack control device and a construction method, and relates to the technical field of concrete crack repairing, the concrete crack control device comprises a rack, a grouting pump and a concrete storage tank, the grouting pump and the concrete storage tank are fixedly arranged on the rack, a cover plate is arranged on the rack in a sliding mode, and a driving assembly used for driving the cover plate to slide is arranged on the rack; the end face, away from the rack, of the cover plate is provided with a grouting cavity, the cover plate is provided with a grouting port and a grout outlet which are communicated with the grouting cavity, the inlet end of the grouting pump is communicated with a feeding pipe, the feeding pipe is communicated with the concrete storage tank, the outlet end of the grouting pump is communicated with a conveying pipe, and the conveying pipe is communicated with the grouting port. A scraping plate is arranged in the plastering cavity in a sliding mode, and a driving piece used for driving the scraping plate to slide is arranged on the cover plate. The device has the effects that concrete cracks can be automatically grouted and stricken off, manual operation is replaced, the working efficiency is improved, and meanwhile the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of concrete crack repair, and in particular to a concrete crack control device and a construction method. Background Art

[0002] As a common building material, concrete has been widely used in various building structures. With the acceleration of urbanization, the rapid development of the construction industry has promoted the continuous expansion of the application scope of concrete structures. However, in actual use, due to the influence of internal and external factors, concrete structures often crack, which poses a serious threat to the safety and service life of buildings. Therefore, how to effectively repair concrete cracks is one of the hot issues currently concerned by the engineering community.

[0003] In order to solve the problem of concrete cracks, the existing conventional repair methods mainly include filling method, grouting method, structural reinforcement method, concrete replacement method and electrochemical protection method. The filling method usually fills the cracks with appropriate repair materials; the grouting method fills the cracks by injecting highly fluid slurry; the structural reinforcement method uses additional concrete or steel and other materials to enhance the structural strength; the concrete replacement method directly replaces the damaged concrete part; the electrochemical protection method uses electrochemical intervention technology to reduce chloride ion erosion, thereby preventing the cracks from further developing. These methods can solve the crack problem to a certain extent and improve the stability of the concrete structure.

[0004] However, the existing crack repair methods have certain limitations in practical applications. In particular, when using manual handheld devices to scrape the cracks, construction workers need to repeat the operation for a long time, which not only increases the labor intensity and easily causes occupational diseases such as wrist pain and even tendinitis, but also leads to low work efficiency and is difficult to meet the needs of existing large-scale crack repair. Therefore, there is an urgent need for an automated device that can effectively replace manual work for efficient crack repair. Summary of the invention

[0005] In view of the problems existing in the prior art, the present application provides a concrete crack control device and a construction method.

[0006] In the first aspect, the present application provides a concrete crack control device, which adopts the following technical solution: A concrete crack control device comprises a frame, a grouting pump and a concrete storage tank fixedly arranged on the frame, a cover plate slidably arranged on the frame, a driving assembly for driving the cover plate to slide is arranged on the frame, a grouting cavity is arranged on the end face of the cover plate away from the frame, a grouting port and a grouting outlet communicated with the grouting cavity are arranged on the cover plate, a feed pipe is communicated with the concrete storage tank at the inlet end of the grouting pump, a delivery pipe is communicated with the grouting port at the outlet end of the grouting pump; a scraper is slidably arranged in the grouting cavity, and a driving member for driving the scraper to slide is arranged on the cover plate.

[0007] Optionally, a sliding frame is slidably arranged on the frame, the cover plate is slidably arranged on the sliding frame, a first elastic member for driving the cover plate to slide away from the sliding frame is arranged on the sliding frame, and the driving assembly is used to drive the sliding frame to slide.

[0008] Optionally, the driving assembly includes a transmission screw rotatably disposed on the frame, and a first driving source for driving the transmission screw to rotate, and the transmission screw is threadably engaged with the sliding frame.

[0009] Optionally, a sealing gasket is provided on the end surface of the cover plate away from the frame along the circumference of the slurry cavity.

[0010] Optionally, a slider is slidably arranged in the slurry chamber, the driving member is used to drive the slider to slide, and the scraper is fixedly arranged on the slider and detachably connected to the slider.

[0011] Optionally, a side wall of the slurry-spreading chamber is provided with a receiving groove connected to the slurry-spreading chamber, an oscillation block is slidably arranged in the receiving groove, and a vibration component for driving the oscillation block to oscillate is arranged on the cover plate.

[0012] Optionally, the vibration assembly includes a second elastic member, a shift block, a cam and a second driving source, the second elastic member is used to drive the vibration block to slide into the receiving groove, a connecting rod is fixedly provided on the vibration block, the connecting rod is slidably provided in the cover plate, the shift block is fixedly provided on the connecting rod, the cam is rotatably provided on the cover plate, the second driving source is used to drive the cam to rotate, and the cam is used to shift the shift block and drive the vibration block to slide in the direction away from the receiving groove.

[0013] Optionally, a roller is rotatably provided on the shift block, and the roller is used to abut against a cam and be rollingly connected with the cam.

[0014] Optionally, a waste bin is fixedly provided on the frame, the slurry outlet of the cover plate is connected with a material guide pipe, the material guide pipe is connected with the waste bin, and a discharge port is provided on the waste bin.

[0015] In a second aspect, the present application provides a construction method of a concrete crack control device, which adopts the following technical solution: A construction method of a concrete crack control device comprises the following steps: S1. Move the device to the location of the concrete crack, mix the concrete for crack repair, and store it in a concrete storage tank; S2, driving the cover plate to slide and placing the cover plate cover at the crack; S3, start the grouting pump, and pour concrete for crack repair into the grouting port of the cover plate through the grouting pump, so that the concrete fills the crack and fills the grouting cavity of the cover plate; S4, driving the scraper to slide, pressing the concrete at the cracks with the scraper, and flattening the crack surface, and the excess concrete at the cracks flows out through the slurry outlet of the cover plate; S5. Afterwards, the device is removed from the cracks and the cracks are covered with plastic film to cure the concrete.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the present application is in use, the device is moved to the position of the concrete crack, the concrete for crack repair is mixed and stored in a concrete storage tank; the cover plate is driven to slide, and the cover plate is placed at the crack; the grouting pump is started, and the concrete for crack repair is poured into the grouting port of the cover plate through the grouting pump, and the concrete fills the crack until the grouting cavity of the cover plate is filled with the concrete; thereafter, the scraper is driven to slide, and the concrete at the crack is pressed by the scraper, and the surface of the crack is scraped flat, and the excess concrete at the crack flows out through the slurry outlet of the cover plate, thereby realizing automatic grouting and scraping of concrete cracks, replacing manual operation, improving work efficiency, and reducing the labor intensity of workers.

[0017] 2. The present application provides a receiving groove on the side wall of the grouting chamber, and slides an oscillation block in the receiving groove. When the grouting chamber is filled with concrete for crack repair, the cam is driven to rotate by the second driving source, and the oscillation block is driven to slide away from the receiving groove by the shifting block. When the cam is disengaged from the shifting block, the oscillation block shrinks back into the receiving groove under the elastic force of the second elastic member, and so on. The concrete in the grouting chamber is subjected to the oscillation effect, which compacts the concrete and helps to improve the filling effect and flatness of the concrete, thereby ensuring the quality of crack repair.

[0018] 3. This application can collect excess concrete flowing out of the cover plate outlet by setting up a waste bin, thereby avoiding material waste, keeping the construction site clean and tidy, and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a structural cross-sectional view of an embodiment of the present application; Figure 3 yes Figure 2 A magnified view of part A; Figure 4 It is a schematic diagram of the structure of the cover plate used to express the embodiment of the present application.

[0020] Explanation of the reference numerals in the accompanying drawings: 1. frame; 11. handle; 12. support leg; 13. transmission screw; 14. first driving source; 15. waste bin; 151. discharge port; 2. grouting pump; 21. feed pipe; 22. delivery pipe; 3. concrete storage tank; 31. feed port; 32. cover; 4. sliding frame; 41. first elastic member; 5. cover plate; 51. guide rod; 511. anti-slip block; 52. grouting chamber; 521. grouting port; 522. grouting port; 523. guide pipe; 524. accommodating groove; 525. oscillation block; 526. connecting rod; 53. sealing pad; 54. slider; 541. scraper; 55. driving member; 56. second elastic member; 57. shift block; 571. roller; 58. cam; 59. second driving source. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application embodiment discloses a concrete crack control device. Figure 1 , including a frame 1, a grouting pump 2 and a concrete storage tank 3 fixedly arranged on the frame 1, a handle 11 fixedly arranged on the frame 1, a plurality of legs 12 fixedly arranged on the bottom of the frame 1, an inlet end of the grouting pump 2 is connected with a feed pipe 21, the feed pipe 21 is connected with the concrete storage tank 3, a feed port 31 is opened on the concrete storage tank 3, a cover 32 is fixedly buckled at the feed port 31, the cover 32 is adapted to the feed port 31, and is used to close the feed port 31.

[0023] Reference Figure 1 , 2 A sliding frame 4 is slidably arranged on the frame 1, and a driving assembly for driving the sliding frame 4 to slide is arranged on the frame 1. The driving assembly includes a transmission screw 13 and a first driving source 14. The transmission screw 13 is rotatably arranged on the frame 1 and threadedly matched with the sliding frame 4. The first driving source 14 includes a first motor, which is fixedly arranged on the frame 1, and the output shaft of the first motor is coaxially fixedly connected with the transmission screw 13.

[0024] Reference Figure 2A cover plate 5 is provided on the sliding frame 4 so as to slide along the axial direction of the driving screw 13. A plurality of guide rods 51 are fixedly provided on the cover plate 5. The guide rods 51 are slidably penetrated on the sliding frame 4. An anti-slip block 511 is fixedly provided at the end of the guide rod 51 away from the cover plate 5. The sliding frame 4 is provided with a first elastic member 41 for driving the cover plate 5 to slide in a direction away from the sliding frame 4. The first elastic member 41 includes a first compression spring. Each guide rod 51 is sleeved with a first compression spring. Both ends of the first compression spring are respectively in contact with the cover plate 5 and the sliding frame 4.

[0025] Reference Figure 2 A slurry cavity 52 is provided on the end face of the cover plate 5 away from the frame 1, and a grouting port 521 and a slurry outlet 522 connected with the slurry cavity 52 are provided on the cover plate 5. The outlet end of the grouting pump 2 is connected with a conveying pipe 22, and the conveying pipe 22 is connected with the grouting port 521. A waste bin 15 is also fixedly provided on the frame 1, and the slurry outlet 522 of the cover plate 5 is connected with a material guide pipe 523, and the material guide pipe 523 is connected with the waste bin 15. A discharge port 151 is provided on the waste bin 15, and both the conveying pipe 22 and the material guide pipe 523 are soft hoses.

[0026] Reference Figure 2 , 3 A sealing gasket 53 is arranged on the end surface of the cover plate 5 away from the frame 1 along the circumference of the slurry cavity 52. ​​The sealing gasket 53 is usually made of rubber material or polyurethane material, and has good elasticity, corrosion resistance and tear resistance; it is designed to be annular and arranged around the circumference of the slurry cavity 52; the choice of rubber material ensures that the gasket maintains good sealing performance during long-term use to prevent slurry from overflowing from the edge of the crack; the sealing gasket 53 has a thickness of 5 mm and a width of 10 mm, which can fit closely to the concrete wall to ensure the sealing effect.

[0027] Reference Figure 3 , 4 A slider 54 is slidably provided in the slurry-spreading chamber 52, a scraper 541 is fixed on the slider 54 by screws, a driving member 55 for driving the slider 54 to slide is provided on the cover plate 5, the driving member 55 includes a rodless cylinder, a mounting groove connected to the slurry-spreading chamber 52 is opened on the cover plate 5, the rodless cylinder is fixedly arranged in the mounting groove, and the piston of the rodless cylinder is fixedly connected to the slider 54, and the rodless cylinder drives the scraper 541 to slide toward the slurry outlet 522.

[0028] Reference Figure 2 , 4The side wall of the slurry chamber 52 is provided with a receiving groove 524 which is connected to the slurry chamber 52, and an oscillation block 525 is slidably arranged in the accommodating groove 524, and the oscillation block 525 is adapted to the accommodating groove 524. A connecting rod 526 is fixedly arranged on the oscillation block 525, and the connecting rod 526 is slidably arranged in the cover plate 5; a vibration component for driving the oscillation block 525 to oscillate is arranged on the cover plate 5, and the vibration component includes a second elastic member 56, a shift block 57, a cam 58 and a second driving source 59, the second elastic member 56 includes a second compression spring, a fixing block is fixedly arranged on the connecting rod 526, the second compression spring is sleeved on the connecting rod 526, and the two ends of the second compression spring are respectively abutted against the cover plate 5 and the fixing block.

[0029] Reference Figure 4 The shift block 57 is fixedly arranged on the connecting rod 526, and the cam 58 is rotatably arranged on the cover plate 5. The second driving source 59 includes a second motor, which is fixedly arranged on the cover plate 5, and the output shaft of the second motor is coaxially fixedly connected with the rotating shaft of the cam 58. The cam 58 is driven to rotate by the second motor. When the cam 58 abuts against the shift block 57, the oscillation block 525 is driven by the shift block 57 to slide away from the accommodating groove 524. When the cam 58 is disengaged from the shift block 57, the oscillation block 525 shrinks back into the accommodating groove 524 under the elastic force of the second compression spring, and so on and so forth, so that the concrete in the slurry cavity 52 is subjected to the oscillation effect, the concrete is vibrated and compacted, and it helps to improve the filling effect and flatness of the concrete, thereby ensuring the quality of crack repair.

[0030] Reference Figure 4 A roller 571 is rotatably provided on the shift block 57, and the roller 571 is used to abut against the cam 58 and realize rolling connection with the cam 58, thereby reducing the friction between the cam 58 and the shift block 57 and making the movement of the vibration block smoother.

[0031] The implementation principle of a concrete crack control device in an embodiment of the present application is as follows: the device is moved to the position of the concrete crack, the concrete for crack repair is mixed, and stored in the concrete storage tank 3; the first motor drives the transmission screw 13 to rotate, the transmission screw 13 drives the sliding frame 4 to slide, and then drives the cover plate 5 to slide, and the cover plate 5 is placed on the crack; the grouting pump 2 is started, and the concrete for crack repair is poured into the grouting port 521 of the cover plate 5 through the grouting pump 2, and the concrete fills the crack until the grouting cavity 52 of the cover plate 5 is filled.

[0032] Afterwards, the cam 58 is driven to rotate by the second motor, and the vibration block 525 is driven to slide away from the receiving groove 524 by the shift block 57. When the cam 58 is disengaged from the shift block 57, the vibration block 525 shrinks back into the receiving groove 524 under the elastic force of the second compression spring, and so on, so that the concrete in the slurry chamber 52 is vibrated and the concrete is compacted.

[0033] Afterwards, the scraper 541 is driven by the rodless cylinder to slide toward the slurry outlet 522, and the concrete at the crack is pressed by the scraper 541, and the surface of the crack is flattened. The excess concrete at the crack flows out through the slurry outlet 522 of the cover plate 5, thereby realizing automatic grouting and flattening of the concrete cracks, replacing manual operation, improving work efficiency, and reducing the labor intensity of workers.

[0034] The present application also discloses a construction method of a concrete crack control device, comprising the following steps: S1, move the device to the position of the concrete crack, mix the concrete for crack repair, and store it in the concrete storage tank 3; S2, the transmission screw 13 is driven to rotate by the first motor, the transmission screw 13 drives the sliding frame 4 to slide, and then drives the cover plate 5 to slide, and the cover plate 5 is set to cover the crack; S3, start the grouting pump 2, and pour concrete for crack repairing into the grouting port 521 of the cover plate 5 through the grouting pump 2. The concrete fills the crack and fills the grouting cavity 52 of the cover plate 5. The cam 58 is driven to rotate by the second motor, and the oscillating block 525 is driven to slide away from the receiving groove 524 through the shifting block 57. When the cam 58 is separated from the shifting block 57, the oscillating block 525 is retracted back into the receiving groove 524 under the elastic force of the second compression spring. This reciprocating process causes the concrete in the grouting cavity 52 to be vibrated and compacted. S4, the scraper 541 is driven to slide by the rodless cylinder, and the concrete at the crack is pressed by the scraper 541, and the surface of the crack is flattened, and the excess concrete at the crack flows out through the slurry outlet 522 of the cover plate 5, and enters the waste bin 15 through the guide pipe 523; S5. Afterwards, the device is removed from the cracks and the cracks are covered with plastic film to cure the concrete.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete crack control device, characterized in that: The invention comprises a frame (1), a grouting pump (2) and a concrete storage tank (3) fixedly arranged on the frame (1); a cover plate (5) is slidably arranged on the frame (1); a driving assembly for driving the cover plate (5) to slide is arranged on the frame (1); a grouting cavity (52) is arranged on the end surface of the cover plate (5) away from the frame (1); a grouting port (521) and a grouting outlet (521) communicating with the grouting cavity (52) are arranged on the cover plate (5). 22), the inlet end of the grouting pump (2) is connected to a feed pipe (21), the feed pipe (21) is connected to a concrete storage tank (3), the outlet end of the grouting pump (2) is connected to a delivery pipe (22), the delivery pipe (22) is connected to a grouting port (521); a scraper (541) is slidably arranged in the grouting cavity (52), and a driving member (55) for driving the scraper (541) to slide is arranged on the cover plate (5).

2. A concrete crack control device according to claim 1, characterized in that: A sliding frame (4) is slidably arranged on the frame (1), the cover plate (5) is slidably arranged on the sliding frame (4), a first elastic member (41) is arranged on the sliding frame (4) for driving the cover plate (5) to slide in a direction away from the sliding frame (4), and the driving assembly is used to drive the sliding frame (4) to slide.

3. A concrete crack control device according to claim 2, characterized in that: The driving assembly comprises a transmission screw (13) rotatably arranged on a frame (1), and a first driving source (14) for driving the transmission screw (13) to rotate, wherein the transmission screw (13) is threadably matched with a sliding frame (4).

4. A concrete crack control device according to claim 2, characterized in that: A sealing gasket (53) is provided on the end surface of the cover plate (5) away from the frame (1) along the circumference of the slurry cavity (52).

5. A concrete crack control device according to claim 1, characterized in that: A slider (54) is slidably disposed in the slurry-spreading chamber (52); the driving member (55) is used to drive the slider (54) to slide; and the scraper (541) is fixedly disposed on the slider (54) and is detachably connected to the slider (54).

6. A concrete crack control device according to claim 1, characterized in that: The side wall of the slurry-spreading chamber (52) is provided with a receiving groove (524) which is in communication with the slurry-spreading chamber (52), an oscillating block (525) is slidably arranged in the receiving groove (524), and a vibration component for driving the oscillating block (525) to oscillate is arranged on the cover plate (5).

7. A concrete crack control device according to claim 6, characterized in that: The vibration assembly comprises a second elastic member (56), a shifting block (57), a cam (58) and a second driving source (59); the second elastic member (56) is used to drive the oscillation block (525) to slide into the receiving groove (524); a connecting rod (526) is fixedly arranged on the oscillation block (525); the connecting rod (526) is slidably arranged in the cover plate (5); the shifting block (57) is fixedly arranged on the connecting rod (526); the cam (58) is rotatably arranged on the cover plate (5); the second driving source (59) is used to drive the cam (58) to rotate; the cam (58) is used to shift the shifting block (57) and drive the oscillation block (525) to slide in a direction away from the receiving groove (524).

8. A concrete crack control device according to claim 7, characterized in that: A roller (571) is rotatably arranged on the shifting block (57), and the roller (571) is used to abut against the cam (58) and be rollingly connected with the cam (58).

9. A concrete crack control device according to claim 1, characterized in that: A waste bin (15) is fixedly arranged on the frame (1), the pulp outlet (522) of the cover plate (5) is connected to a material guide pipe (523), the material guide pipe (523) is connected to the waste bin (15), and a discharge port (151) is arranged on the waste bin (15).

10. A construction method based on the concrete crack control device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, move the device to the location of the concrete crack, mix the concrete for crack repair, and store it in the concrete storage tank (3); S2, driving the cover plate (5) to slide, and placing the cover plate (5) over the crack; S3, starting the grouting pump (2), and pouring concrete for crack repairing into the grouting port (521) of the cover plate (5) through the grouting pump (2), so that the concrete fills the crack and fills the grouting cavity (52) of the cover plate (5); S4, driving the scraper (541) to slide, using the scraper (541) to press the concrete at the crack and flatten the crack surface, and the excess concrete at the crack flows out through the slurry outlet (522) of the cover plate (5); S5. Afterwards, the device is removed from the cracks and the cracks are covered with plastic film to cure the concrete.

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