A water conservancy and hydropower engineering concrete crack treatment equipment and treatment method

Abstract

The application relates to the technical field of water conservancy construction, and discloses a water conservancy and hydropower engineering concrete crack treatment equipment and treatment method, which comprises a movable trolley and a push rod fixedly connected, one side of the top of the movable trolley is provided with a storage tank, and the other side is provided with a power box, a controller is fixedly installed on the push rod, a sealing cover is detachably installed on the top of the storage tank, a conveying hose is fixedly connected below the side face of the storage tank, an extrusion piston is clamped in the storage tank, and a pneumatic motor is arranged on the top of the sealing cover. The water conservancy and hydropower engineering concrete crack treatment equipment and treatment method is characterized in that a cutting piece and a guide pipe are integrally arranged at the end of the holding pipe, the cutting piece can be driven to rotate to cut the crack through the concrete crack, air can be supplied through the air supply mechanism to make the airflow directly sprayed along the holding pipe and the guide pipe to clean the crack, or the airflow is introduced into the pneumatic motor to extrude the grouting material in the storage tank along the holding pipe and the guide pipe to grout and fill the crack.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy construction, in particular to a device and a method for treating concrete cracks in water conservancy and hydropower engineering. Background Art

[0002] Concrete is inevitably used to construct various buildings in water conservancy and hydropower projects. During the hardening process of concrete, the concrete will shrink due to dehydration, or be affected by the temperature difference between high and low temperatures, causing uneven expansion and contraction and cracks. If the cracks are not treated after they occur, the cracks will continue to expand and cause greater defects in the dam body. Therefore, it is necessary to deal with the cracks accordingly in the early stage of their occurrence. At this stage, the usual treatment method is pouring and filling.

[0003] The process of grouting and filling is: first, grooves are cut at the original cracks, and then the grooves are cleaned, and finally the grouting slurry is poured in. In practice, it is found that the entire grouting and filling process takes a long time. The main reason is that the equipment used includes groovers, cleaning equipment and grouting machines, which need to be operated multiple times through multiple devices, which is time-consuming and labor-intensive. In addition, the common cleaning equipment in the prior art is usually a handheld industrial hair dryer. The air outlet of the hair dryer is large, and it is difficult for the airflow to be gathered into a bundle and enter the deep part of the crack. As a result, some impurity particles in the deep part of the crack cannot be effectively cleaned, affecting the subsequent grouting and filling effect. In addition, during the grouting and filling process, the grouting slurry needs to penetrate into the crack and completely fill the entire crack to achieve the best filling effect. Conventional grouting machines mainly use the fluidity of the grouting slurry itself to enter the crack, which takes a lot of time and may not be able to fill the crack. The efficiency and effect of filling the crack are poor. Summary of the Invention

[0004] The purpose of the present invention is to provide a device and method for treating concrete cracks in water conservancy and hydropower projects, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for treating concrete cracks in water conservancy and hydropower engineering, comprising a mobile vehicle and a push rod that are fixedly connected, a storage tank being provided on one side of the top of the mobile vehicle and a power box being provided on the other side, a controller being fixedly mounted on the push rod, a sealing cover being detachably mounted on the top of the storage tank, a delivery hose being fixedly connected to the lower side thereof, and an extrusion piston being clamped inside thereof, an air motor being provided on the top of the sealing cover, and the air motor being in transmission connection with the extrusion piston, and an air supply mechanism being provided on the top of the power box for supplying air to the air motor and the delivery hose;

[0006] One end of the delivery hose is fixedly connected to a gripping tube, and the end of the gripping tube is threadedly connected to a guide tube. An end of the gripping tube close to the guide tube is fixedly sleeved with a mounting bracket, and a support roller and a cutting blade are movably mounted on the mounting bracket, and a drive motor is fixedly mounted on the mounting bracket. The drive motor and the cutting blade are in transmission connection.

[0007] The end of the guide tube is hinged with a plurality of combined petals, and an electric telescopic rod is fixedly installed on the guide tube. The electric telescopic rod and the plurality of combined petals are in transmission connection. The plurality of combined petals can be opened or gathered at the end of the guide tube under the drive of the electric telescopic rod.

[0008] Preferably, an adjusting screw is fixedly connected to the output shaft of the pneumatic motor, a transmission rod sleeve is fixedly connected to the top of the extrusion piston, and the transmission rod sleeve and the adjusting screw are threadedly connected, the transmission rod sleeve is movably connected to the sealing cover, and a positioning slide that cooperates with the sealing cover is provided on the transmission rod sleeve. The pneumatic motor can drive the adjusting screw to rotate under the push of airflow, and then drive the transmission rod sleeve and the extrusion piston to move up and down, applying extrusion force to the grouting slurry inside the storage tank, so that the grouting slurry can quickly fill the cracks.

[0009] Preferably, the air supply mechanism includes a high-pressure air pump fixedly mounted on the top of the power box, a cleaning air supply pipe and an injection air supply pipe fixedly connected to the air outlet of the high-pressure air pump, an electric ball valve is provided at the end of the cleaning air supply pipe away from the air outlet of the high-pressure air pump, and an electric ball valve is provided at the end of the injection air supply pipe close to the air outlet of the high-pressure air pump, the high-pressure air pump and the electric ball valve are both electrically connected to the controller, and by setting the cleaning air supply pipe, the injection air supply pipe and the electric ball valve matched therewith, the air supply status of the pneumatic motor and the conveying hose can be selected, thereby realizing the selection of spray cleaning of cracks and injection slurry filling.

[0010] Preferably, the end of the perfusion air supply pipe away from the air outlet of the high-pressure air pump is fixedly connected to a two-position three-way solenoid valve, and the two-position three-way solenoid valve is fixedly connected to the air inlet and air outlet of the pneumatic motor, the end of the cleaning air supply pipe away from the air outlet of the high-pressure air pump is fixedly connected to the delivery hose, and the end of the delivery hose close to the storage tank is provided with an electric butterfly valve, the position where the cleaning air supply pipe is connected to the delivery hose is located on the side of the delivery hose close to the electric butterfly valve, the two-position three-way solenoid valve and the electric butterfly valve are both electrically connected to the controller, when the cracks are filled with perfusion, the electric butterfly valve is closed, and air is ventilated into the delivery hose along the cleaning air supply pipe, so that the perfusion slurry in the delivery hose, the holding tube and the guide tube can be sprayed and cleaned, reducing the difficulty of cleaning.

[0011] Preferably, a sprocket transmission component is provided between the output shaft of the drive motor and the cutting blade, and the drive motor and the cutting blade are connected through the sprocket transmission component. The drive motor is electrically connected to the controller, and power is provided by the drive motor and transmitted through the sprocket transmission component, which can drive the cutting blade to rotate and realize cutting of concrete cracks.

[0012] Preferably, after several of the combined petals are gathered at the end of the guide tube, a discharge nozzle can be formed in the middle thereof. The diameter of the discharge nozzle is one-fifth to one-tenth of the diameter of the end of the guide tube. In the first half of the grouting process, multiple combined petals are also in a gathered state, which increases the extrusion speed of the grouting slurry, so that the grouting slurry can fill the bottom of the crack under the action of the extrusion pressure, thereby improving the filling effect.

[0013] Preferably, a pulling arm is provided at one end of the combined petal close to the guide tube, and a transmission rod is hinged at the end of the pulling arm. A transmission ring is provided on the outer movable sleeve of the guide tube, and the transmission ring and the transmission rod are hingedly connected. When the transmission ring moves outside the guide tube, the transmission rod and the pulling arm are used to drive the combined petals to open or gather at the end of the guide tube.

[0014] Preferably, an electric telescopic rod is fixedly installed on the guide tube, and the output shaft of the electric telescopic rod is fixedly connected to the transmission ring. The electric telescopic rod is electrically connected to the controller. Under the control of the controller, the electric telescopic rod can drive the transmission ring to move, thereby adjusting the opening and closing state of the combined petal. The electric telescopic rod is existing technology and is commercially available.

[0015] A method for treating concrete cracks in water conservancy and hydropower projects, comprising the following steps:

[0016] S1. Open the sealing cover and pull out the extrusion piston, add the grouting slurry required for concrete crack treatment into the storage tank, and use a mobile vehicle to push the device to the concrete crack that needs to be treated;

[0017] S2. Crack cutting: The controller controls the drive motor to start, which drives the cutting blade to rotate through the sprocket transmission component. The hand-held grip tube pushes the grip tube as a whole to move over the concrete crack through the support roller, and the rotating cutting blade cuts the crack. The tilt angle of the grip tube can be manually adjusted to adjust the cutting depth of the cutting blade.

[0018] S3. Crack cleaning: After the concrete cracks are cut, the controller starts the high-pressure air pump and controls the electric ball valve on the cleaning air supply pipe to open. At this time, the electric ball valve and the electric butterfly valve on the grouting air supply pipe are closed, and the multiple combined petals are gathered. Air is supplied by the high-pressure air pump, and the air flow is transported along the cleaning air supply pipe, the delivery hose, and the gripping pipe into the guide pipe and discharged through the discharge nozzles in the middle of the multiple combined petals. The diameter of the discharge nozzle is smaller than that of the end of the guide pipe, which can increase the flow rate of the air flow. The gripping pipe is held by hand and pushed to move the gripping pipe as a whole by the support roller, and the combined petals gathered at the end of the guide pipe are aligned with the crack to spray and clean impurities in the crack;

[0019] S4. Grouting: After the concrete cracks are cleaned, the controller controls the electric ball valve on the cleaning air supply pipe to close, and controls the electric ball valve and electric butterfly valve on the grouting air supply pipe to open. Air is supplied by the high-pressure air pump, and the air flow enters the pneumatic motor along the grouting air supply pipe. The air flow drives the adjusting screw to rotate, drives the transmission rod sleeve and the extrusion piston to move downward, and squeezes the grouting slurry in the storage tank through the extrusion piston, so that the grouting slurry enters the guide pipe along the delivery hose and the mounting bracket, and is squeezed into the concrete cracks along the end of the guide pipe;

[0020] S5. In the first half of the crack grouting, the multiple combined petals at the end of the guide tube are in a gathered state, which increases the extrusion speed of the grouting slurry and enables the grouting slurry to fill the bottom of the crack under the action of the extrusion pressure. In the second half of the crack grouting, the controller controls the electric telescopic rod to pull the transmission ring and the transmission rod to move, so that the multiple combined petals open, slowing down the extrusion speed of the grouting slurry and preventing the grouting slurry from splashing outwards due to impact in the concrete cracks.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The equipment and method for treating concrete cracks in water conservancy and hydropower projects integrates a cutting blade and a guide tube at the end of a holding tube, which can drive the cutting blade to rotate through the concrete cracks to cut the cracks. The air supply mechanism supplies air to allow the air flow to be directly ejected along the holding tube and the guide tube to clean the cracks, or the air flow is introduced into the pneumatic motor to extrude the grouting slurry in the storage tank along the holding tube and the guide tube to grout and fill the cracks. The crack separation, grouting and filling operations can be performed continuously by one machine, thereby improving the efficiency of crack filling.

[0023] 2. The equipment and method for treating concrete cracks in water conservancy and hydropower projects: During the crack cleaning stage, the electric telescopic rod drives multiple combined petals to gather together, reducing the size of the discharge nozzle at the end of the guide pipe, which can increase the flow rate of the airflow, so that the airflow can effectively clean impurities deep in the cracks, ensuring the effect of subsequent grouting and filling; in addition, during the extrusion process of the grouting slurry, the pneumatic motor drives the extrusion piston to apply pressure to the grouting slurry, so that the grouting slurry can quickly fill the cracks. At the same time, in the first half of the grouting process, the multiple combined petals are also in a gathered state, which increases the extrusion speed of the grouting slurry, so that the grouting slurry can fill the bottom of the crack under the action of the extrusion pressure, thereby improving the filling effect.

[0024] 3. The equipment and method for treating concrete cracks in water conservancy and hydropower projects sets a cleaning air supply pipe at one end of the conveying hose close to the storage tank. After the cracks are filled with grouting, the electric butterfly valve is closed and air is ventilated into the conveying hose along the cleaning air supply pipe. The grouting slurry in the conveying hose, the holding pipe and the guide pipe can be sprayed and cleaned, reducing the difficulty of cleaning and facilitating subsequent recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention after overall assembly;

[0026] Figure 2 This is a schematic structural diagram of the top of the storage tank in the present invention;

[0027] Figure 3 It is a structural schematic diagram of the cross section of the storage tank in the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the outer portion of the grip tube in the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the exterior of the mounting bracket in the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the connection between the driving motor and the cutting blade in the present invention;

[0031] Figure 7 Schematic diagram of the structure of the discharge pipe in the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the combined petal after it is opened in the present invention;

[0033] Figure 9 It is a structural schematic diagram of the connection between the transmission ring and the transmission rod in the present invention.

[0034] In the figure: 1. Mobile vehicle; 2. Storage tank; 3. Power box; 4. Air supply mechanism; 41. High-pressure air pump; 42. Cleaning air supply pipe; 43. Filling air supply pipe; 44. Two-position three-way solenoid valve; 45. Electric ball valve; 5. Push rod; 6. Controller; 7. Sealing cover; 8. Pneumatic motor; 9. Adjusting screw; 10. Transmission rod sleeve; 11. Extrusion piston; 12. Delivery hose; 13. Electric butterfly valve; 14. Holding tube; 15. Mounting bracket; 16. Support roller; 17. Drive motor; 18. Cutting blade; 19. Sprocket transmission component; 20. Guide tube; 21. Combination petal; 22. Transmission ring; 23. Transmission rod; 24. Electric telescopic rod. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1 to 9 In the embodiment of the present invention, a concrete crack treatment device for water conservancy and hydropower engineering comprises a mobile vehicle 1 and a push rod 5 which are fixedly connected. A storage tank 2 is provided on one side of the top of the mobile vehicle 1 and a power box 3 is provided on the other side. The power box 3 is a common existing technology and is commercially available. A power battery or a fuel generator can be used to power the device. A controller 6 is fixedly mounted on the push rod 5. A sealing cover 7 is detachably mounted on the top of the storage tank 2, a delivery hose 12 is fixedly connected to the lower side, and an extrusion piston 11 is clamped inside to seal the storage tank 2. An air motor 8 is provided on the top of the cover 7, and the air motor 8 is transmission-connected to the extrusion piston 11. An air supply mechanism 4 is provided on the top of the power box 3 for supplying air to the air motor 8 and the delivery hose 12. The air supply mechanism 4 supplies air to the air motor 8, and the air motor 8 can drive the extrusion piston 11 to extrude the grouting slurry inside the storage tank 2, so that the grouting slurry is extruded along the end of the guide tube 20 to fill the cracks. The air supply mechanism 4 supplies air to the delivery hose 12 separately, so that the air flow can be ejected along the end of the guide tube 20 to blow and clean the impurities in the cracks.

[0037] One end of the conveying hose 12 is fixedly connected to a holding tube 14, and the end of the holding tube 14 is threadedly connected to a guide tube 20. The holding tube 14 can be held to adjust the positions of the cutting blade 18 and the guide tube 20, and the crack filling operations can be performed continuously by one machine to improve the efficiency of crack filling. The end of the holding tube 14 close to the guide tube 20 is fixedly sleeved with a mounting bracket 15, and the mounting bracket 15 is movably mounted with a support roller 16 and a cutting blade 18, and a drive motor 17 is fixedly mounted. The drive motor 17 and the cutting blade 18 are connected by a transmission. The cutting blade 18 is driven to rotate by the drive motor 17 to cut the crack, and the cutting angle of the cutting blade 18 can be adjusted by manually adjusting the inclination angle of the holding tube 14.

[0038] A plurality of combined petals 21 are hingedly connected to the end of the guide tube 20, and an electric telescopic rod 24 is fixedly installed on the guide tube 20, and the electric telescopic rod 24 is transmission-connected to the plurality of combined petals 21. The electric telescopic rod 24 can drive the plurality of combined petals 21 to open or gather under the control of the controller 6, thereby adjusting the airflow blowing speed and the grouting slurry extrusion speed. The plurality of combined petals 21 can be opened or gathered at the end of the guide tube 20 under the drive of the electric telescopic rod 24. The electric telescopic rod 24 drives the plurality of combined petals 21 to gather, reducing the size of the discharge nozzle at the end of the guide tube 20, thereby increasing the flow rate of the airflow, so that the airflow can effectively clean up impurities deep in the cracks, thereby ensuring the effect of subsequent grouting and filling.

[0039] As a further implementation scheme of the above invention: an adjusting screw 9 is fixedly connected to the output shaft of the pneumatic motor 8, a transmission rod sleeve 10 is fixedly connected to the top of the extrusion piston 11, and the transmission rod sleeve 10 is threadedly connected to the adjusting screw 9. The pneumatic motor 8 can drive the adjusting screw 9 to rotate under the push of the airflow, and then drive the transmission rod sleeve 10 and the extrusion piston 11 to move up and down, applying extrusion force to the perfusion slurry inside the storage tank 2, so that the perfusion slurry can quickly fill the cracks, the transmission rod sleeve 10 is movably connected to the sealing cover 7, and a positioning slide bar is provided on the transmission rod sleeve 10 to cooperate with the sealing cover 7. The transmission rod sleeve 10 is restricted by the positioning slide bar to avoid axial rotation of the transmission rod sleeve 10, thereby ensuring that the transmission rod sleeve 10 can drive the extrusion piston 11 to move up and down stably.

[0040] As a further implementation scheme of the above invention: the air supply mechanism 4 includes a high-pressure air pump 41 fixedly installed on the top of the power box 3, a cleaning air supply pipe 42 and an injection air supply pipe 43 fixedly connected to the air outlet of the high-pressure air pump 41, and the cleaning air supply pipe 42 is provided with an electric ball valve 45 at one end away from the air outlet of the high-pressure air pump 41, and the injection air supply pipe 43 is provided with an electric ball valve 45 at one end close to the air outlet of the high-pressure air pump 41. The high-pressure air pump 41 and the electric ball valve 45 are both existing technologies and are commercially available. The high-pressure air pump 41 and the electric ball valve 45 are both electrically connected to the controller 6. By setting the cleaning air supply pipe 42, the injection air supply pipe 43 and the electric ball valve 45 matched therewith, the air supply state of the pneumatic motor 8 and the conveying hose 12 can be selected, thereby realizing the selection of spray cleaning of cracks and injection slurry filling.

[0041] As a further implementation scheme of the above invention: one end of the perfusion air supply pipe 43 away from the air outlet of the high-pressure air pump 41 is fixedly connected to a two-position three-way solenoid valve 44, and the two-position three-way solenoid valve 44 is fixedly connected to the air inlet and air outlet of the pneumatic motor 8. By setting the two-position three-way solenoid valve 44, the air inlet and air outlet directions of the pneumatic motor 8 can be adjusted, and then the rotation direction of the pneumatic motor 8 can be adjusted to achieve the direction adjustment of the up and down movement of the extrusion piston 11. The end of the cleaning air supply pipe 42 away from the air outlet of the high-pressure air pump 41 is fixedly connected to the delivery hose 12, and the end of the delivery hose 12 close to the storage tank 2 is provided with an electric butterfly valve 13. By setting the electric butterfly valve 1 3. Block the connection between the delivery hose 12 and the storage tank 2 to prevent the airflow in the cleaning air supply pipe 42 from entering the storage tank 2. The connection position between the cleaning air supply pipe 42 and the delivery hose 12 is located on the side of the delivery hose 12 close to the electric butterfly valve 13. After the cracks are filled with grouting, the electric butterfly valve 13 is closed and air is ventilated into the delivery hose 12 along the cleaning air supply pipe 42. The grouting slurry in the delivery hose 12, the holding pipe 14 and the guide pipe 20 can be sprayed and cleaned, reducing the difficulty of cleaning. The two-position three-way solenoid valve 44 and the electric butterfly valve 13 are both electrically connected to the controller 6. The electric butterfly valve 13 and the two-position three-way solenoid valve 44 are prior art and are commercially available.

[0042] As a further implementation scheme of the above invention: a sprocket transmission component 19 is provided between the output shaft of the drive motor 17 and the cutting blade 18, and the drive motor 17 and the cutting blade 18 are connected to each other through the sprocket transmission component 19. The drive motor 17 is electrically connected to the controller 6. The drive motor 17 provides power and transmits power through the sprocket transmission component 19, which can drive the cutting blade 18 to rotate and realize cutting of concrete cracks. The drive motor 17 is existing technology and is commercially available.

[0043] As a further implementation scheme of the above invention: after a plurality of combined petals 21 are gathered at the end of the guide tube 20, a discharge nozzle can be formed in the middle thereof. The electric telescopic rod 24 drives the plurality of combined petals 21 to gather together, reducing the size of the discharge nozzle at the end of the guide tube 20, which can increase the flow rate of the airflow, so that the airflow can effectively clean up impurities deep in the crack. The diameter of the discharge nozzle is one-fifth to one-tenth of the diameter of the end of the guide tube 20. In the first half of the grouting process, the plurality of combined petals 21 are also in a gathered state, which increases the extrusion speed of the grouting slurry, so that the grouting slurry can fill the bottom of the crack under the action of the extrusion pressure, thereby improving the filling effect.

[0044] As a further implementation scheme of the above invention: a pulling arm is provided at one end of the combined petal 21 close to the guide tube 20, and a transmission rod 23 is hinged at the end of the pulling arm. A transmission ring 22 is provided on the outer movable sleeve of the guide tube 20, and the transmission ring 22 and the transmission rod 23 are hingedly connected. When the transmission ring 22 moves outside the guide tube 20, it can drive several combined petals 21 to open or gather at the end of the guide tube 20 through the transmission rod 23 and the pulling arm.

[0045] As a further implementation scheme of the above invention: an electric telescopic rod 24 is fixedly installed on the guide tube 20, and the output shaft of the electric telescopic rod 24 is fixedly connected to the transmission ring 22. The electric telescopic rod 24 is electrically connected to the controller 6. Under the control of the controller 6, the electric telescopic rod 24 can drive the transmission ring 22 to move, thereby adjusting the opening and closing state of the combined petal 21. The electric telescopic rod 24 is existing technology and is commercially available.

[0046] A method for treating concrete cracks in water conservancy and hydropower projects, comprising the following steps:

[0047] S1. Open the sealing cover 7 and pull out the extrusion piston 11. Add the grouting slurry required for concrete crack treatment into the storage tank 2. Use the mobile vehicle 1 to push the device to the concrete crack that needs to be treated.

[0048] S2. Crack cutting: The drive motor 17 is started by the controller 6. The drive motor 17 drives the cutting blade 18 to rotate through the sprocket transmission component 19. The gripping tube 14 is manually held and pushed by the support roller 16 to move the gripping tube 14 as a whole over the concrete crack. The rotating cutting blade 18 cuts the crack. The tilt angle of the gripping tube 14 can be manually adjusted to adjust the cutting depth of the cutting blade 18.

[0049] S3, crack cleaning: after the concrete crack is cut, the controller 6 controls the high-pressure air pump 41 to start, and controls the electric ball valve 45 on the cleaning air supply pipe 42 to open, at this time, the electric ball valve 45 on the perfusion air supply pipe 43 and the electric butterfly valve 13 are in the closed state, a plurality of combined petals 21 are in the gathering state, air is supplied through the high-pressure air pump 41, the airflow is transported into the guide pipe 20 along the cleaning air supply pipe 42, the conveying hose 12, the holding pipe 14, and is discharged along the discharge nozzle in the middle of the plurality of combined petals 21, the diameter of the discharge nozzle is smaller than the diameter of the end of the guide pipe 20, the flow rate of the airflow can be improved, the holding pipe 14 is held by hand, the holding pipe 14 is pushed as a whole through the supporting roller 16, the combined petals 21 after the end of the guide pipe 20 is gathered are aligned with the crack, and the impurities in the crack are cleaned by blowing;

[0050] S4, perfusion slurry: after the concrete crack is cleaned, the controller 6 controls the electric ball valve 45 on the cleaning air supply pipe 42 to close, and controls the electric ball valve 45 on the perfusion air supply pipe 43 and the electric butterfly valve 13 to open, air is supplied through the high-pressure air pump 41, the airflow enters the pneumatic motor 8 along the perfusion air supply pipe 43, the pneumatic motor 8 rotates under the action of the airflow, drives the adjusting screw rod 9 to rotate, drives the transmission rod sleeve 10 and the extrusion piston 11 to move downward, and the perfusion slurry in the storage tank 2 is extruded through the extrusion piston 11, so that the perfusion slurry enters the guide pipe 20 along the conveying hose 12, the mounting bracket 15, and is extruded into the concrete crack along the end of the guide pipe 20;

[0051] S5, the front half stage of the crack perfusion slurry, the plurality of combined petals 21 at the end of the guide pipe 20 are in the gathering state, the extrusion speed of the perfusion slurry is improved, so that the perfusion slurry can fill the bottom of the crack under the action of the extrusion pressure, and the rear half stage of the crack perfusion slurry, the controller 6 controls the electric telescopic rod 24 to pull the transmission ring 22 and the transmission rod 23 to move, so that the plurality of combined petals 21 are opened, the extrusion speed of the perfusion slurry is slowed down, and the perfusion slurry is prevented from splashing outward in the concrete crack.

[0052] The present application covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A concrete crack treatment device for a water conservancy and hydropower project, comprising a mobile vehicle (1) and a push rod (5) which are fixedly connected, a storage tank (2) being provided on one side of the top of the mobile vehicle (1) and a power box (3) being provided on the other side, a controller (6) being fixedly mounted on the push rod (5), and characterized in that: The storage tank (2) is detachably mounted with a sealing cover (7) on the top, a delivery hose (12) is fixedly connected to the lower side, and an extrusion piston (11) is clamped inside. A pneumatic motor (8) is provided on the top of the sealing cover (7), and the pneumatic motor (8) is transmission-connected to the extrusion piston (11). The power box (3) is top-mounted with an air supply mechanism (4) capable of supplying air to the pneumatic motor (8) and the delivery hose (12). One end of the delivery hose (12) is fixedly connected to a holding tube (14), and the end of the holding tube (14) is threadedly connected to a guide tube (20), and an installation bracket (15) is fixedly sleeved on one end of the holding tube (14) close to the guide tube (20), and a support roller (16) and a cutting blade (18) are movably installed on the installation bracket (15), and a drive motor (17) is fixedly installed, and a transmission connection is formed between the drive motor (17) and the cutting blade (18); The end of the guide tube (20) is hinged with a plurality of combined petals (21), an electric telescopic rod (24) is fixedly mounted on the guide tube (20), and the electric telescopic rod (24) and the plurality of combined petals (21) are in transmission connection. The plurality of combined petals (21) can be opened or gathered at the end of the guide tube (20) under the drive of the electric telescopic rod (24).

2. The concrete crack treatment equipment for water conservancy and hydropower engineering according to claim 1, characterized in that: An adjusting screw rod (9) is fixedly connected to the output shaft of the pneumatic motor (8), a transmission rod sleeve (10) is fixedly connected to the top of the extrusion piston (11), and the transmission rod sleeve (10) and the adjusting screw rod (9) are threadedly connected. The transmission rod sleeve (10) is movably connected to the sealing cover (7), and a positioning slide bar that cooperates with the sealing cover (7) is provided on the transmission rod sleeve (10).

3. The concrete crack treatment equipment for water conservancy and hydropower engineering according to claim 1, characterized in that: The air supply mechanism (4) includes a high-pressure air pump (41) fixedly mounted on the top of the power box (3), a cleaning air supply pipe (42) and an injection air supply pipe (43) fixedly connected to the air outlet of the high-pressure air pump (41), an electric ball valve (45) is provided at one end of the cleaning air supply pipe (42) away from the air outlet of the high-pressure air pump (41), and an electric ball valve (45) is provided at one end of the injection air supply pipe (43) close to the air outlet of the high-pressure air pump (41), and the high-pressure air pump (41) and the electric ball valve (45) are both electrically connected to the controller (6).

4. The water conservancy and hydropower engineering concrete crack treatment device according to claim 3, characterized in that: The end of the infusion air supply pipe (43) away from the air outlet of the high-pressure air pump (41) is fixedly connected to a two-position three-way solenoid valve (44), and the two-position three-way solenoid valve (44) is fixedly connected to the air inlet and the air outlet of the pneumatic motor (8). The end of the cleaning air supply pipe (42) away from the air outlet of the high-pressure air pump (41) is fixedly connected to the delivery hose (12), and the end of the delivery hose (12) close to the storage tank (2) is provided with an electric butterfly valve (13). The position where the cleaning air supply pipe (42) is connected to the delivery hose (12) is located on the side of the delivery hose (12) close to the electric butterfly valve (13), and the two-position three-way solenoid valve (44) and the electric butterfly valve (13) are both electrically connected to the controller (6).

5. The water conservancy and hydropower engineering concrete crack treatment device according to claim 1, characterized in that: A sprocket transmission component (19) is provided between the output shaft of the drive motor (17) and the cutting blade (18), and the drive motor (17) and the cutting blade (18) are connected to each other through the sprocket transmission component (19). The drive motor (17) is electrically connected to the controller (6).

6. The water conservancy and hydropower engineering concrete crack treatment device according to claim 1, characterized in that: After the plurality of combined petals (21) are gathered at the end of the guide tube (20), a discharge nozzle can be formed in the middle thereof. The diameter of the discharge nozzle is one fifth to one tenth of the diameter of the end of the guide tube (20).

7. The equipment for treating concrete cracks in water conservancy and hydropower projects according to claim 1, characterized in that: A pull arm is provided at one end of the combined petal (21) close to the guide tube (20), and a transmission rod (23) is hingedly connected to the end of the pull arm. A transmission ring (22) is provided on the outer movable sleeve of the guide tube (20), and the transmission ring (22) and the transmission rod (23) are hingedly connected.

8. The equipment for treating concrete cracks in water conservancy and hydropower projects according to claim 7, characterized in that: An electric telescopic rod (24) is fixedly mounted on the guide tube (20), and an output shaft of the electric telescopic rod (24) is fixedly connected to the transmission ring (22), and the electric telescopic rod (24) is electrically connected to the controller (6).

9. A method for treating cracks in concrete of a water conservancy and hydropower project according to any one of claims 1 to 8, characterized in that: The following steps are included: S1. Open the sealing cover (7) and extract the extrusion piston (11), add the grouting slurry required for treating the concrete cracks into the storage tank (2), and push the device to the concrete cracks that need to be treated by the mobile vehicle (1); S2, crack cutting: the driving motor (17) is started by the controller (6), the driving motor (17) drives the cutting blade (18) to rotate through the sprocket transmission component (19), the holding tube (14) is held by hand and pushed by the supporting roller (16) to move the holding tube (14) as a whole on the concrete crack, and the crack is cut by the rotating cutting blade (18), and the tilt angle of the holding tube (14) can be manually adjusted to adjust the cutting depth of the cutting blade (18); S3, crack cleaning: After the concrete crack is cut, the controller (6) controls the high-pressure air pump (41) to start and controls the electric ball valve (45) on the cleaning air supply pipe (42) to open. At this time, the electric ball valve (45) and the electric butterfly valve (13) on the perfusion air supply pipe (43) are in a closed state, and the plurality of combined flaps (21) are in a gathered state. Air is supplied by the high-pressure air pump (41), and the air flow is transported along the cleaning air supply pipe (42), the delivery hose (12), and the holding pipe (14) into the guide pipe (20), and is discharged along the discharge nozzle in the middle of the plurality of combined flaps (21). The diameter of the discharge nozzle is smaller than the diameter of the end of the guide pipe (20), which can increase the flow rate of the air flow. The holding pipe (14) is held by hand and pushed to move the holding pipe (14) as a whole through the support roller (16), and the combined flap (21) gathered at the end of the guide pipe (20) is aligned with the crack to spray and clean the impurities in the crack; S4, grouting: After the concrete cracks are cleaned, the controller (6) controls the electric ball valve (45) on the cleaning air supply pipe (42) to close, and controls the electric ball valve (45) and the electric butterfly valve (13) on the grouting air supply pipe (43) to open, and supplies air through the high-pressure air pump (41), and the air flow enters the pneumatic motor (8) along the grouting air supply pipe (43). The pneumatic motor (8) drives the adjusting screw (9) to rotate under the push of the air flow, drives the transmission rod sleeve (10) and the extrusion piston (11) to move downward, and squeezes the grouting grout in the storage tank (2) through the extrusion piston (11), so that the grouting grout enters the guide pipe (20) along the delivery hose (12) and the mounting bracket (15), and is squeezed into the concrete cracks along the end of the guide pipe (20); S5. In the first half of the crack grouting process, the plurality of combined petals (21) at the end of the guide tube (20) are in a gathered state, thereby increasing the extrusion speed of the grouting grout, so that the grouting grout can fill the bottom of the crack under the action of the extrusion pressure. In the second half of the crack grouting process, the controller (6) controls the electric telescopic rod (24) to pull the transmission ring (22) and the transmission rod (23) to move, thereby opening the plurality of combined petals (21), slowing down the extrusion speed of the grouting grout, and preventing the grouting grout from splashing outwards due to the impact in the concrete crack.

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