Structural surface cleaning equipment and construction process
Through the combination of the electric pick main unit and the negative pressure cover, the problem of cleaning the non-flat surface concrete is solved, and efficient cleaning of uneven and reinforced mesh scenes is achieved, ensuring the cleanliness and efficiency of the construction environment.
Patent Information
- Application Number
- CN202411502338.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2024-12-27
AI Technical Summary
It is difficult to effectively clean concrete with non-flat surfaces in the prior art, especially in the presence of uneven or reinforced mesh, and it is difficult to achieve the expected concrete cleaning effect.
The electric pick main machine is used to combine the negative pressure cover and the slag suction pipe. The electric pick head performs uneven movement to hit the concrete residue. The negative pressure cover covers and sucks the slag through the slag suction pipe to achieve concrete crushing and cleaning. At the same time, the cross four-head electric pick head is used. and corrugated covers improve cleaning efficiency and applicability.
It realizes efficient cleaning of non-flat concrete, avoids dust pollution, is suitable for different scenarios, and improves cleaning efficiency and the cleanliness of the construction environment.
Smart Images
Figure CN119195477A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of structural surface cleaning, and in particular to a structural surface cleaning device and a construction process. Background Art
[0002] In the field of concrete construction or prefabrication, it is often necessary to clean the concrete on the structural surface or working surface to ensure the quality and safety performance of subsequent processes. With the continuous expansion of the scale of construction projects and the increasing technical requirements, structural surface cleaning has become one of the important links in the construction process. At present, in order to ensure the cleanliness of the structural surface, the industry generally attaches importance to the research and development and application of related cleaning technologies, aiming to improve work efficiency and construction quality. In the field of concrete construction or prefabrication, it is often necessary to clean the concrete on the structural surface or working surface, and common methods of treatment include scraping.
[0003] The existing Chinese patent with publication number CN103894353A discloses a concrete scraping device, including a first scraper and a second scraper arranged behind the first scraper, the hardness of the first scraper is greater than the hardness of the second scraper, and the distance between the edge line of the first scraper and the workbench surface during scraping is greater than the distance between the edge line of the second scraper and the workbench surface. It realizes the cleaning of the concrete on the flat workbench surface through the coordinated scraping of the multi-stage scraper structure.
[0004] The above-mentioned related technologies have the following defects: this type of scraping method is only applicable to the case where the surface to be processed is a flat surface. When the surface to be processed is uneven or there is a steel grid, it is difficult to achieve the expected concrete cleaning effect. Summary of the invention
[0005] In order to achieve concrete cleaning on uneven surfaces, the present application provides a structural surface cleaning device and a construction process.
[0006] In the first aspect, the present application provides a structural surface cleaning device that adopts the following technical solution: A structural surface cleaning device includes an electric pick main body, the electric pick main body includes a body and an electric pick head located at the front end of the body, the body is also provided with a negative pressure hood for covering the electric pick head, the negative pressure hood is connected to a slag recovery box through a slag suction pipe, and the slag recovery box is connected to a negative pressure source for maintaining the slag recovery box and the negative pressure hood in a negative pressure state.
[0007] By adopting the above technical solution, the main machine of the electric pick is started, and the electric pick head is moved unevenly perpendicular to the working surface. The electric pick head strikes the concrete residue or slurry until it is broken. During this period, the negative pressure cover covers the local range of the working surface struck by the electric pick head, and under the action of the negative pressure source, the slag is sucked into the slag recovery box through the slag suction pipe, so that the concrete crushing and cleaning can be carried out at the same time. This design simplifies the cleaning process of concrete residue and slurry on the structural surface, improves the cleaning efficiency, and also ensures that the working surface is free of dust pollution. In addition, cleaning operations can also be performed, especially in the face of uneven scenes or scenes with steel mesh, and it is more applicable to different scenes.
[0008] Preferably, the electric drill head is a cross four-head electric drill head.
[0009] By adopting the above technical solution, the use of the cross four-head electric hammer enables the electric hammer to achieve a more uniform and comprehensive knocking effect when knocking concrete residues and slurry, thereby improving the efficiency and quality of the cleaning operation. The cross four-head design increases the number of knocking points, making it easier to break concrete residues, thereby increasing the cleaning speed. In addition, when cleaning the intersection nodes of the steel mesh, the cross electric hammer can be directly clamped to the intersection of the steel mesh, so that the concrete at the intersection of the steel mesh can be better crushed.
[0010] Preferably, the negative pressure cover is connected to the fuselage via a corrugated cover.
[0011] By adopting the above technical solution, the negative pressure hood is connected to the machine body through the corrugated hood, so that the negative pressure hood can fit closely to the working surface of different shapes, effectively preventing dust from spilling out and ensuring the cleanliness of the working environment. The design of the corrugated hood enhances the adaptability of the equipment to different structural surfaces, and the corrugated hood can also be used to adjust the angle adaptively on the operating surface with an inclined angle, further improving the efficiency and effect of cleaning concrete residues and slurry.
[0012] Preferably, the air suction end of the negative pressure source is connected to the slag recovery box, and the air outlet end of the negative pressure source is connected to an exhaust pipe.
[0013] By adopting the above technical scheme, the negative pressure source can ensure that the negative pressure source effectively maintains the negative pressure state in the debris recovery box and the negative pressure hood, improves the debris suction efficiency, and discharges the exhaust gas through the exhaust pipe. In addition, while discharging the gas, the exhaust airflow can also be effectively utilized, which can be used to blow a certain area of the cleaning surface to further blow and clean the fine dust or particles. In actual use, it can be simulated as two workstations. The first workstation crushes and sucks the concrete, and the second workstation blows the finer dust or particles that have not been sucked away. Alternatively, after all areas have been crushed and sucked away, the dust or particles that have not been cleaned up can be concentratedly blown to a corner by blowing, and then sucked away. The usage method is more flexible and effectively utilizes the exhaust gas of the negative pressure source.
[0014] Preferably, the negative pressure hood has slag suction ports evenly distributed along the circumferential direction, the number of the slag suction pipes is consistent with the number of the slag suction ports, several of the slag suction ports are connected to the slag recovery box through corresponding slag suction pipes, and the inner diameters and lengths of the several slag suction pipes are consistent.
[0015] By adopting the above technical solution, the negative pressure hood can distribute the suction ports more evenly, and multiple suction ports are connected to the negative pressure source through the suction pipes, and the inner diameter and length of each suction pipe are consistent, thereby ensuring that the suction of each suction port is balanced, improving the collection efficiency of the debris, and ensuring that the concrete residue on the working surface is efficiently and evenly sucked into the debris recovery box. This method of evenly distributing suction force in the circumferential direction is more suitable for flat concrete cleaning.
[0016] Preferably, several of the slag suction pipes are provided with regulating valves.
[0017] By adopting the above technical solution, the regulating valve can adjust the negative pressure strength in each slag suction pipe according to actual needs, so that the suction distribution of the slag suction can be customized. For example, when cleaning the concrete on the plane, the suction can be adjusted evenly everywhere. When cleaning the concrete slurry on the opposite side, the negative pressure cover is placed against the wall. At this time, most of the debris will naturally fall to the bottom of the negative pressure cover after being broken. In this case, it is necessary to reduce the suction at the top and increase the suction at the bottom. This will make it more efficient overall and ensure that the location where the debris is concentrated can be more efficiently sucked into the debris recovery box, thereby improving the overall cleaning effect.
[0018] Preferably, a screen for sealing the residue suction port is provided inside the negative pressure cover.
[0019] By adopting the above technical solution, a screen is provided inside the negative pressure hood, and the sealed slag suction port can effectively prevent large particles of debris or foreign matter from entering the slag suction pipe, reduce the risk of pipe blockage, ensure the smooth flow of the slag suction pipe and the stable operation of the negative pressure system, thereby improving the cleaning efficiency and equipment reliability.
[0020] Preferably, the debris recovery box is detachably connected to the machine body, and an overflow detector is provided inside the debris recovery box.
[0021] By adopting the above technical solution, the debris recovery box is detachably connected to the machine body, which is convenient for timely disassembly and cleaning of the debris. The overflow detector can monitor the amount of debris in the debris recovery box in real time and can promptly prompt when the debris overflows, avoiding contamination of the working surface caused by the overflow of debris, thereby ensuring the cleanliness of the working environment.
[0022] Preferably, a clearance groove is provided on the edge of the negative pressure cover.
[0023] By adopting the above technical solution, a clearance groove is provided on the edge of the negative pressure hood, so that the negative pressure hood can better fit the working surfaces of different shapes, especially for the working surfaces with steel mesh. For example, four clearance grooves can be set to just match the cross-staggered parts of the steel mesh, so as to achieve perfect coverage and improve the sealing between the negative pressure hood and the cleaning surface, thereby facilitating the maintenance of the negative pressure environment in the negative pressure hood, thereby improving the cleaning effect and avoiding dust overflow due to loose fit and the inability to absorb debris due to pressure leakage.
[0024] In the second aspect, the present application provides a structural surface cleaning construction process, which adopts the following technical solution: A structural surface cleaning construction process, in which the electric pick main machine is started, and the electric pick head is moved unevenly perpendicular to the working surface. The electric pick head strikes the concrete residue or slurry until it is broken. During this period, a negative pressure cover covers the local area of the working surface struck by the electric pick head, and under the action of the negative pressure source, the debris is sucked into a debris recovery box through a debris suction pipe, thereby achieving simultaneous operations of concrete crushing and cleaning.
[0025] By adopting the above technical solution, traditional concrete residue cleaning cannot meet the requirements of cleaning large horizontal surfaces, and incomplete cleaning seriously affects the progress requirements of on-site operations. On the one hand, this solution can achieve horizontal surface concrete residue cleaning and beam and column concrete slurry residue cleaning through the construction structure, while achieving non-polluting working surfaces, and no dust is generated when crushing concrete residue and slurry, thus improving the construction working environment. On the other hand, the construction process is simulated through BIM virtual construction technology, the construction sequence is optimized, and the residue cleaning is ensured to be in place in a timely manner, ensuring the continuity of construction and the quality of the physical project.
[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Use a cross-shaped four-head electric pick to knock the concrete residue and slurry until they are broken. At the same time, use the negative pressure cover and the slag suction pipe to suck the slag into the slag recovery box, so as to effectively clean the concrete residue and slurry on the structural surface; 2. The combined design of negative pressure cover and corrugated cover ensures close fit on the working surface, prevents dust from spilling out, and improves the construction environment; 3. The construction process uses BIM virtual construction technology to optimize the construction sequence, ensure that debris is cleaned up in a timely manner, ensure construction continuity, and improve overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a structural schematic diagram for illustrating the connection relationship between the electric pump head and the negative pressure cover in the embodiment of the present application; Figure 3 This is a structural schematic diagram for reflecting the positional relationship between the slag suction port and the negative pressure hood in the embodiment of the present application; Figure 4 This is a structural schematic diagram for illustrating the connection relationship between the exhaust pipe and the slag recovery box in the embodiment of the present application; Figure 5 This is a structural schematic diagram used to reflect another quantity and position relationship between the clearance grooves and the negative pressure hood in the embodiment of the present application.
[0028] In the figure: 1. main body of electric pickaxe; 11. body; 12. electric pickaxe head; 13. negative pressure cover; 130. clearance slot; 14. slag suction pipe; 140. slag suction port; 142. sieve; 15. slag recovery box; 151. overflow detector; 16. negative pressure source; 161. exhaust pipe; 17. corrugated cover. DETAILED DESCRIPTION
[0029] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.
[0030] The inventor of the present application has found that in the field of concrete construction or prefabrication, it is often necessary to clean the concrete on the structural surface or working surface, and the common scraping and other methods are used for processing. The above-mentioned related technologies have the following defects: this type of scraping method is only applicable to the case where the surface to be processed is a plane. When the surface to be processed is uneven or there is a steel grid, it is difficult to achieve the expected concrete cleaning effect. To this end, the present application mainly adopts the following structural surface cleaning equipment, including an electric pick main machine 1, the electric pick main machine 1 includes a body 11 and an electric pick head 12 located at the front end of the body 11, the body 11 is also provided with a negative pressure cover 13 for covering the electric pick head 12, the negative pressure cover 13 is connected to a slag recovery box 15 through a slag suction pipe 14, and the slag recovery box 15 is connected to a negative pressure source 16 for maintaining the slag recovery box 15 and the negative pressure cover 13 in a negative pressure state, so as to achieve the purpose of cleaning the concrete residue and slurry on the structural surface, avoid the problem of dust flying during the cleaning process, and improve the work efficiency and the cleanliness of the construction environment. The following is a further detailed description of the present application.
[0031] Reference Figure 1 and Figure 2 The structural surface cleaning equipment provided in the embodiment of the present application includes an electric pick main unit 1 and a negative pressure cover 13, wherein the electric pick main unit 1 includes a body 11 and an electric pick head 12, and the negative pressure cover 13 covers the electric pick head 12 and is connected to a slag recovery box 15 through a slag suction pipe 14, thereby achieving the purpose of cleaning concrete residues or slurry on the structural surface, avoiding the problem of flying dust during the cleaning process, and improving work efficiency and the cleanliness of the construction environment. The negative pressure cover 13 is connected to the body 11 through a corrugated cover 17, and the material of the corrugated cover 17 is soft rubber or polyurethane, which has a certain elasticity and resilience, and can promote the negative pressure cover 13 to be close to the working surface when the electric pick head 12 moves, thereby improving the adsorption effect. The corrugated structure formed by the bellows 17 not only maintains the connection stability between the negative pressure hood 13 and the fuselage 11, but also can adapt to work surfaces of different shapes or different holding angles, ensuring that the negative pressure hood 13 can be close to the work surface under multiple working conditions when the electric drill 12 is working, effectively collecting debris and reducing dust leakage.
[0032] Reference Figure 2 The specific structure of the electric pick 12 can be a cross four-head electric pick 12, including four picks perpendicular to the axis of the electric pick 12 and distributed in a cross shape. By driving the electric pick to make uneven forward and backward movements, efficient knocking of concrete residues or slurry is achieved. In addition to the cross four-head electric pick 12, other forms of electric picks 12 can also be used, such as three-head electric picks 12, five-head electric picks 12, etc., to adapt to different application scenarios and needs.
[0033] Reference Figure 2 and Figure 3, the negative pressure cover 13 is arranged at the front end of the fuselage 11 to cover the electric screw head 12 and is connected to the slag recovery box 15 through the slag suction pipe 14. The specific structure of the negative pressure cover 13 is a truncated cone, and a clearance groove 130 is arranged on the edge of the negative pressure cover 13. The clearance groove 130 is used to avoid the steel mesh or other obstacles appearing on the working surface. In this embodiment, the clearance groove 130 is set to four, and the four clearance grooves 130 match the cross four-head electric screw head 12. When there is a steel mesh on the cleaning surface, both the cross four-head electric screw head 12 and the four clearance grooves 130 can perfectly match the staggered steel mesh, so that in the actual cleaning process, both the electric screw head 12 and the negative pressure cover 13 can avoid obstacles when approaching the working surface, ensuring that the negative pressure cover 13 can be smoothly attached to the working surface, while avoiding damage to the negative pressure cover 13 due to steel bars or other obstacles. The material of the negative pressure cover 13 can be wear-resistant polypropylene or polycarbonate to ensure that it is not easily damaged during long-term use.
[0034] Reference Figure 3 The negative pressure cover 13 is provided with a plurality of slag suction ports 140 which are actually connected to the slag suction pipe 14 along the circumferential direction, so as to better and stably absorb the debris and slurry at various locations along the circumferential direction. In addition, the present application adopts a plurality of slag suction pipes 14, each of which is connected to the corresponding slag suction port 140 for pressure distribution, and the inner diameter and length of each slag suction pipe 14 are selected to have the same specifications. In this way, the debris is more evenly transported from the slag suction pipe 14 to the debris recovery box 15 in all directions, avoiding the local backlog caused by uneven suction of the debris. This structural design not only improves the uniformity and efficiency of debris collection, but also reduces the pressure on the negative pressure source 16, thereby improving the overall working stability of the equipment.
[0035] Each slag suction pipe 14 is provided with a regulating valve, which can adjust the suction force of each slag suction pipe 14 according to actual needs to ensure the balance of slag conveying. The regulating valve can be in the form of a knob type, a sliding type or other forms to meet the specific needs of different users for the equipment. A screen 142 is also provided inside the negative pressure cover 13. The specific form of the screen 142 can be a mesh structure made of stainless steel, which is fixed inside the negative pressure cover 13 and covers the slag suction port 140. When the slag passes through the slag suction port 140 in the negative pressure cover 13, the screen 142 can effectively prevent larger slag from blocking the slag suction port 140 and maintain the stability of the negative pressure state.
[0036] The slag suction pipe 14 connects the negative pressure cover 13 and the slag recovery box 15. The material of the slag suction pipe 14 is a polyvinyl chloride or nylon hose made of antistatic material, and the interior is smooth to prevent the slag or slurry from blocking the pipe during the transmission process. The setting of the slag suction pipe 14 enables the slag to be stably transmitted from the working surface to the slag recovery box 15, ensuring the continuity of the operation process.
[0037] Reference Figure 4 , the debris recovery box 15 is located at the middle end of the fuselage 11, and is detachably connected to the fuselage 11 through a connecting structure. The connecting structure can adopt a snap-on, bolt-type or magnetic connection method, so that the operator can disassemble and check the situation in the debris recovery box 15 at any time and clean it in time. An overflow detector 151 is further provided inside the debris recovery box 15. When the debris in the recovery box reaches a certain amount, the overflow detector 151 will send an alarm signal to prompt the operator to clean it in time to avoid the weakening of the negative pressure source 16 and the problem of dust overflow. The overflow detector 151 can adopt a variety of forms such as a pressure sensor, a photoelectric sensor or an ultrasonic sensor to ensure that the alarm reminder can be triggered immediately when the debris recovery box 15 is close to a full load state. In addition, a filtering device can also be provided inside the debris recovery box 15 to further prevent the debris from entering the negative pressure source 16 and causing damage. The specific form of the filtering device can be a grid, a porous shape or a sponge shape, etc., to filter finer dust and ensure that the negative pressure source 16 is not blocked and damaged.
[0038] Reference Figure 4 The air outlet of the negative pressure source 16 is also connected to an exhaust pipe 161 for discharging the filtered air. The exhaust pipe 161 can be a bendable and shapeable universal tube. On the one hand, it can ensure that the negative pressure source 16 effectively maintains the negative pressure state in the slag recovery box 15 and the negative pressure cover 13, improve the slag suction efficiency, and discharge the exhaust gas through the exhaust pipe 161. On the other hand, while discharging the gas, the airflow of the exhaust can also be effectively utilized, which can be used to purge a certain area of the cleaning surface to further purge and clean fine dust or particles. In actual use, it can be simulated as two stations. The first station is used to break and suck the concrete, and the second station is used to purge the finer dust or particles that have not been sucked. Alternatively, after all areas are broken and sucked, the dust or particles that have not been cleaned can be concentrated in a corner by blowing and then sucked. The use method is more flexible and the exhaust of the negative pressure source 16 is effectively utilized.
[0039] Reference Figure 4, the negative pressure source 16 realizes the maintenance of the slag recovery box 15 and the negative pressure cover 13 in a negative pressure state, and is mainly composed of a vacuum pump or a fan. The vacuum pump or fan can be installed on the slag recovery box 15, and the slag recovery box 15 is evacuated with negative pressure, and then the slag is collected through the slag suction pipe 14 connected to the slag recovery box 15, and the gas is discharged through the exhaust end of the negative pressure source 16. The choice of the negative pressure source 16 can select a variety of forms of vacuum pumps or fans according to actual needs to improve the cleaning efficiency. For example, different types of negative pressure source 16 devices such as centrifugal fans, axial flow fans or vortex vacuum pumps can be selected to meet the cleaning requirements in different scenarios. In addition, in other embodiments, the negative pressure source 16 and / or the slag recovery box 15 can also be adjusted to an external larger device, not limited to being integrated into the electric pick host 1, to obtain a larger negative pressure power or slag storage capacity.
[0040] The implementation principle of this embodiment is as follows: the electric pick host 1 is started, and the electric pick head is moved unevenly perpendicular to the working surface, and the electric pick head knocks the concrete residue or slurry until it is broken. During this period, the negative pressure cover 13 covers the local range of the working surface knocked by the electric pick head 12, and under the action of the negative pressure source 16, the slag is sucked into the slag recovery box 15 through the slag suction pipe 14, so that the concrete crushing and cleaning can be carried out at the same time. This design simplifies the cleaning process of concrete residue and slurry on the structural surface, improves the cleaning efficiency, and also ensures that the working surface is free of dust pollution. In addition, cleaning operations can also be performed, especially in the face of uneven scenes or scenes with steel mesh, and it is more applicable to different scenes.
[0041] Reference Figure 5 In other embodiments, the yield grooves 130 can be set to be larger in number, for example, they can be evenly and densely distributed along the circumference of the negative pressure cover 13. This method can make the edge of the negative pressure cover 13 spike-shaped, and this method is not only suitable for scenes such as steel mesh. For example, when the cleaning surface is uneven, the negative pressure cover 13 can be close to the cleaning surface and the spike-shaped edges can be used to fill the concave parts and deform the convex parts for better sealing. In addition, the electric pick host 1 is in a state of continuous vibration and shaking during operation. The edge of the spike-shaped negative pressure cover 13 is softer when vibrating, so that it can fit the cleaning surface more delicately and tightly. Compared with the whole negative pressure cover 13, this method is less likely to cause the whole negative pressure cover 13 to "bounce" and cause air leakage after a small frequency direct vibration with the cleaning surface.
[0042] 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 structural surface cleaning device, characterized in that: The invention comprises an electric pickaxe main unit (1), wherein the electric pickaxe main unit (1) comprises a body (11) and an electric pickaxe head (12) located at the front end of the body (11); the body (11) is further provided with a negative pressure cover (13) for covering the electric pickaxe head (12); the negative pressure cover (13) is connected to a slag recovery box (15) via a slag suction pipe (14); the slag recovery box (15) is connected to a negative pressure source (16) for maintaining the slag recovery box (15) and the negative pressure cover (13) in a negative pressure state.
2. A structural surface cleaning device according to claim 1, characterized in that: The electric drill head (12) is a cross four-head electric drill head (12).
3. A structural surface cleaning device according to claim 1, characterized in that: The negative pressure cover (13) is connected to the fuselage (11) via a corrugated cover (17).
4. A structural surface cleaning device according to claim 1, characterized in that: The air intake end of the negative pressure source (16) is connected to the slag recovery box (15), and the air outlet end of the negative pressure source (16) is connected to an exhaust pipe (161).
5. The structural surface cleaning device according to claim 1, characterized in that: The negative pressure cover (13) is evenly distributed with slag suction ports (140) along the circumferential direction, the number of the slag suction pipes (14) is consistent with the number of the slag suction ports (140), a plurality of the slag suction ports (140) are respectively connected to the slag recovery box (15) through corresponding slag suction pipes (14), and the inner diameters and lengths of the plurality of slag suction pipes (14) are consistent.
6. A structural surface cleaning device according to claim 5, characterized in that: A plurality of the slag suction pipes (14) are each provided with a regulating valve.
7. A structural surface cleaning device according to claim 5, characterized in that: A screen (142) for sealing the residue suction port (140) is arranged inside the negative pressure cover (13).
8. The structural surface cleaning device according to claim 1, characterized in that: The slag recovery box (15) is detachably connected to the machine body (11), and an overflow detector (151) is arranged inside the slag recovery box (15).
9. A structural surface cleaning device according to claim 1, characterized in that: The edge of the negative pressure cover (13) is provided with a clearance groove (130).
10. A structural surface cleaning construction process, characterized in that: The electric pick main machine (1) is started, and the electric pick head is moved unevenly perpendicular to the working surface, and the electric pick head strikes the concrete residue or slurry until it is broken. During this period, the negative pressure cover (13) covers the local area of the working surface struck by the electric pick head (12), and under the action of the negative pressure source (16), the broken slag is sucked into the broken slag recovery box (15) through the slag suction pipe (14), so that the concrete crushing and cleaning operations can be carried out simultaneously.