Concrete hardness detection device

Abstract

The invention belongs to the technical field of concrete hardness detection, and discloses a concrete hardness detection device. Comprising a base and a top plate, and the top of the top plate is fixedly connected with a first electric push rod through a connecting plate. By arranging the cleaning mechanism, when dirt, laitance and other impurities attached to the concrete surface need to be cleaned, a second electric push rod is started to drive a scraper to make contact with the concrete surface, a first motor is started to drive a water outlet pipe and the scraper to rotate through a rotating plate, and meanwhile a water pump is started to spray water to the concrete surface through the water outlet pipe; dirt, laitance and other impurities on the surface of concrete are wetted and softened, the wet and softened dirt, laitance and other impurities can be scraped away through the scraping piece, after scraping is completed, the scraping piece leaves the surface of the concrete, the sponge strip makes contact with the surface of the concrete, the hot air equipment is started to spray hot air to the surface of the concrete, and drying of the surface of the concrete is accelerated. The purpose of automatically cleaning the concrete surface is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete hardness detection, and more specifically, the present invention relates to a concrete hardness detection device. Background Art

[0002] As an indispensable material in modern architecture, the quality of concrete is directly related to the structural safety and service life of buildings. Concrete hardness is one of the important indicators to measure its quality and is of great significance for evaluating the compressive strength, durability, etc. of concrete. Currently, a special rebound hammer is usually used to detect the hardness of concrete.

[0003] Currently, the detection method of concrete hardness is usually to detect the hardness of concrete by a staff member holding a rebound hammer. This detection method has problems such as low measurement accuracy and low detection efficiency. At the same time, for large concrete components or parts that are difficult to directly contact, such as high walls, traditional detection methods are often difficult to implement. Moreover, the surface of the concrete to be detected is usually attached with dirt, floating slurry and other impurities, and usually needs to be cleaned by the staff before detection. The current detection device cannot clean the surface of the concrete to be detected by itself. Summary of the Invention

[0004] In order to solve the problems that the current detection device in the background art cannot clean the surface of the concrete to be detected by itself and it is difficult to detect large concrete components or parts that are difficult to directly contact, such as high walls, the present invention provides a concrete hardness detection device.

[0005] To achieve the above object, the present invention provides the following technical solution: A concrete hardness detection device, including a base and a top plate. A first electric push rod is fixedly connected to the top of the top plate through a connecting plate. The output end of the first electric push rod is fixedly connected with a mounting plate, and a rebound hammer body is mounted on the mounting plate. The device further includes: A cleaning mechanism, which is arranged on the top plate. The cleaning mechanism includes a water spraying component for spraying water on the concrete surface, a scraping component for scraping impurities on the concrete surface, and a drying component for drying the concrete surface. A driving component for driving the cleaning mechanism is arranged on the top plate; A position adjusting mechanism, which is arranged on the top plate. The position adjusting mechanism includes a height adjusting component for adjusting the height of the rebound hammer body, an azimuth adjusting component for adjusting the azimuth of the rebound hammer body, and an angle adjusting component for adjusting the angle between the rebound hammer body and the concrete surface.

[0006] Further, the driving component includes a second electric push rod fixedly connected to the top of the top plate. The output end of the second electric push rod is fixedly connected with a U-shaped plate. The top of the U-shaped plate is fixedly connected with an annular plate. A first motor is fixedly connected inside the U-shaped plate. The output shaft of the first motor is fixedly connected with a first gear. A rotating plate is rotatably connected to the annular plate. An annular gear meshing with the first gear is fixedly connected to the outer wall of the rotating plate.

[0007] Further, the water spraying component includes a cross pipe fixedly connected to the rotating plate. A plurality of water outlet pipes are fixedly connected to the cross pipe. A water tank is fixedly connected to the top plate through a bracket. A water pump is arranged inside the water tank. A connecting pipe is fixedly connected between the water pump and the cross pipe.

[0008] Further, the scraping component includes a U-shaped strip arranged on one side of the rotating plate. A rotating shaft is rotatably connected to the U-shaped strip. A scraping blade is fixedly connected to the outer wall of the rotating shaft. A worm gear is fixedly connected to one end of the rotating shaft. A worm meshing with the worm gear is rotatably connected to the rotating plate. A second gear is fixedly connected to one end of the worm. An arc-shaped rack is arranged on one side of the annular plate. The arc-shaped rack is located on the trajectory of the second gear rotating around the center of the annular plate.

[0009] Further, a vertical block is fixedly connected to the rotating plate. A limiting groove is formed inside the vertical block. A moving rod is slidably connected to the limiting groove through a slider. A support plate is fixedly connected to the annular plate. A telescopic sleeve is fixedly connected to the support plate. The bottom end of the telescopic sleeve is fixedly connected with a lifting block. The bottom end of the lifting block is set to be rounded. The lower end of the lifting block is located on the trajectory of the moving rod rotating around the center of the annular plate. A first spring is fixedly connected between the lifting block and the support plate. An L-shaped rod is fixedly connected to the lifting block. The arc-shaped rack is fixedly connected to one end of the L-shaped rod.

[0010] Further, the drying component includes a hollow mounting strip arranged on the side wall of the rotating plate. A sponge strip is mounted on the mounting strip. A hot air device is mounted on the mounting strip. The hot air device is communicated with the mounting strip through a fixed pipe. A plurality of air outlet channels communicating with the mounting strip are formed on the sponge strip.

[0011] Further, a second motor is fixedly connected to the side wall of the rotating plate. The output shaft of the second motor is fixedly connected with a third gear. Two straight racks are meshed outside the third gear. A cross bar is fixedly connected to the straight rack. Two connecting rods penetrating the rotating plate are fixedly connected to each of the two cross bars. Two of the connecting rods are fixedly connected to the U-shaped strip, and the other two connecting rods are fixedly connected to the mounting strip.

[0012] Furthermore, a fixing seat is fixedly connected to the inner wall of the water outlet pipe, a rotating column is rotatably connected to the middle part of the fixing seat, a water outlet channel is opened in the rotating column, half of one end of the water outlet channel is located above the fixing seat, a toggle plate is fixedly connected to the outer wall of the rotating column, a second spring is fixedly connected between the toggle plate and the inner wall of the water outlet pipe, an elastic block is fixedly connected to the toggle plate, a rubber plug is fixedly connected to the elastic block, a water outlet facing the rubber plug is opened on the water outlet pipe, and a plurality of arc-shaped plates facing the rubber plug are fixedly connected to the inner wall of the horizontal tube.

[0013] Furthermore, the height adjustment component includes a cylinder fixedly connected to the base, a third motor is fixedly connected inside the cylinder, an output shaft of the third motor is fixedly connected to a threaded rod, an outer wall of the threaded rod is threadedly connected to a lifting plate, four lifting columns are slidably passed through the top of the lifting plate, and the azimuth adjustment component includes a frame fixedly connected to the top ends of the four lifting columns, a fourth motor is fixedly connected inside the frame, and an output shaft of the fourth motor is fixedly connected to a circular plate.

[0014] Furthermore, the angle adjustment assembly includes two fixed plates fixedly connected to a circular plate, a rotating shaft is fixedly connected between the two fixed plates, a rotating block is fixedly connected to the outer wall of the rotating shaft, the rotating block is fixedly connected to the bottom of the top plate, a limiting block is fixedly connected to the bottom of the top plate, a V-shaped opening is provided on the limiting block, a third electric push rod is fixedly connected to the circular plate, a moving plate is fixedly connected to the output end of the third electric push rod, a moving column is fixedly connected to the moving plate, and the moving column is located in the middle position of the V-shaped opening.

[0015] The technical effects and advantages of a concrete hardness detection device of the present invention are as follows: (1) By setting up a cleaning mechanism, when it is necessary to clean the dirt, floating slurry and other impurities attached to the concrete surface, the second electric push rod is started to drive the scraper to contact the concrete surface, the first motor is started to drive the rotating plate to rotate through the first gear and the ring gear, the rotating plate drives the water outlet pipe and the scraper to rotate, and at the same time the water pump is started to spray water through the water outlet pipe to the concrete surface, so as to moisten and soften the dirt, floating slurry and other impurities on the concrete surface. The scraper can scrape off the moistened and softened dirt, floating slurry and other impurities. After the scraping is completed, the scraper is separated from the concrete surface, the sponge bar is in contact with the concrete surface, and the hot air device is started to spray hot air to the concrete surface to accelerate the drying of the concrete surface, thereby achieving the purpose of automatically cleaning the concrete surface.

[0016] (2) By setting up a position adjustment mechanism, when it is necessary to detect the concrete surface of a wall at a certain height, start the third motor to drive the threaded rod to rotate. The threaded rod drives the lifting plate and the frame to move upward to a suitable height. Then start the fourth motor to drive the circular plate to rotate to a suitable orientation. Next, start the third electric push rod to drive the moving plate and the moving column to move, so that the moving column moves within the V-shaped opening. The moving column can make the top plate rotate around the rotating shaft, adjusting the angle of the rebound instrument body to make the detection head of the rebound instrument body face the concrete surface directly, achieving the purpose of automatically adjusting the position of the rebound instrument body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the ring plate and the rotating plate structure in the present invention; Figure 3 in the present invention Figure 2 is an enlarged schematic diagram at A in; Figure 4 in the present invention Figure 2 is an enlarged schematic diagram at B in; Figure 5 is a partial three-dimensional structure schematic diagram of the present invention; Figure 6 is a sectional view schematic diagram of the water outlet pipe in the present invention; Figure 7 is a sectional view schematic diagram of the cylinder in the present invention; Figure 8 is a schematic diagram of the second circular plate and the top plate structure in the present invention.

[0018] In the figure: 1. Base; 2. Top plate; 3. First electric push rod; 4. Mounting plate; 5. Rebound tester body; 6. Second electric push rod; 7. U-shaped plate; 8. Circular ring plate; 9. First motor; 10. First gear; 11. Ring gear; 12. Rotating plate; 13. Horizontal pipe; 14. Water outlet pipe; 15. Connecting pipe; 16. Water tank; 17. U-shaped bar; 18. Rotating shaft; 19. Scraper; 20. Worm gear; 21. Worm; 22. Second gear; 23. Arc rack; 24. Vertical block; 25. Limiting groove; 26. Moving rod; 27. Support plate; 28. Telescopic sleeve; 29. ​​Lifting block; 30. First spring; 31. L-shaped rod; 32. Mounting bar; 33. Sponge bar; 34 , hot air equipment; 35, air outlet channel; 36, second motor; 37, third gear; 38, spur rack; 39, cross bar; 40, connecting rod; 41, fixed seat; 42, rotating column; 43, water outlet channel; 44, second spring; 45, toggle plate; 46, elastic block; 47, rubber plug; 48, water outlet; 49, arc plate; 50, cylinder; 51, third motor; 52, threaded rod; 53, lifting plate; 54, lifting column; 55, frame; 56, fourth motor; 57, circular plate; 58, fixed plate; 59, rotating shaft; 60, rotating block; 61, limit block; 62, V-shaped mouth; 63, third electric push rod; 64, moving plate; 65, moving column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] Reference Figure 1 - Figure 8 A concrete hardness testing device comprises a base 1 and a top plate 2, wherein a first electric push rod 3 is fixedly connected to the top of the top plate 2 through a connecting plate, a mounting plate 4 is fixedly connected to the output end of the first electric push rod 3, a rebound tester body 5 is mounted on the mounting plate 4, and further comprises: A cleaning mechanism, the cleaning mechanism is arranged on the top plate 2, the cleaning mechanism comprises a water spraying component for spraying water on the concrete surface, a scraping component for scraping impurities on the concrete surface and a drying component for drying the concrete surface, and a driving component for driving the cleaning mechanism is arranged on the top plate 2; A position adjustment mechanism, the position adjustment mechanism is arranged on the top plate 2, and the position adjustment mechanism includes a height adjustment component for adjusting the height of the rebound hammer body 5, an azimuth adjustment component for adjusting the azimuth of the rebound hammer body 5, and an angle adjustment component for adjusting the angle between the rebound hammer body 5 and the concrete surface; During use, according to the position of the concrete to be detected, the height, orientation and angle of the top plate 2 and the rebound instrument body 5 are adjusted through the height adjustment assembly, the orientation adjustment assembly and the angle adjustment assembly, so that the detection head of the rebound instrument body 5 can be directly opposite to the surface of the concrete to be detected, realizing the automatic adjustment of the position of the rebound instrument body 5 to adapt to concrete walls with different heights and different inclination angles. Through the orientation adjustment assembly, the cleaning mechanism is first made to face the concrete surface. First, the water spraying assembly is used to spray water on impurities such as dirt and floating slurry on the surface of the concrete to be detected, wetting and softening the dirt, floating slurry and other impurities, and then cooperating with the scraping assembly to scrape and clean the wetted and softened dirt, floating slurry and other impurities, achieving the purpose of automatically cleaning the surface of the concrete to be detected. After scraping is completed, the concrete surface is quickly dried through the drying assembly. After cleaning is completed, the detection head of the rebound instrument body 5 is made to face the concrete surface again through the orientation adjustment assembly, and the hardness detection is carried out through the rebound instrument body 5.

[0021] Refer to Figure 2 As shown in, the driving assembly includes a second electric push rod 6 fixedly connected to the top of the top plate 2. The output end of the second electric push rod 6 is fixedly connected with a U-shaped plate 7. The top of the U-shaped plate 7 is fixedly connected with a circular ring plate 8. A first motor 9 is fixedly connected inside the U-shaped plate 7. The output shaft of the first motor 9 is fixedly connected with a first gear 10. A rotating plate 12 is rotatably connected to the circular ring plate 8. An annular gear 11 meshing with the first gear 10 is fixedly connected to the outer wall of the rotating plate 12. When it is necessary to drive the cleaning mechanism to clean the surface of the concrete to be detected, start the second electric push rod 6. The second electric push rod 6 drives the U-shaped plate 7, the first motor 9 and the circular ring plate 8 to move, making the cleaning mechanism close to the surface of the concrete to be detected. Start the first motor 9. The first motor 9 drives the first gear 10 to rotate reciprocally. The first gear 10 drives the annular gear 11 to rotate reciprocally. The annular gear 11 drives the rotating plate 12 to rotate reciprocally. The rotating plate 12 can drive the cleaning mechanism to rotate reciprocally, so that the cleaning mechanism can repeatedly clean the surface of the concrete to be detected.

[0022] Refer to Figure 1 、 Figure 2 and Figure 5 As shown in, the water spraying assembly includes a horizontal pipe 13 fixedly connected to the rotating plate 12. A plurality of water outlet pipes 14 are fixedly connected to the horizontal pipe 13. A water tank 16 is fixedly connected to the top plate 2 through a bracket. A water pump is arranged inside the water tank 16. A connecting pipe 15 is fixedly connected between the water pump and the horizontal pipe 13. When it is necessary to spray water and clean the surface of the concrete to be detected, start the water pump. The water pump can spray the water in the water tank 16 from the water outlet pipes 14 through the connecting pipe 15 and the horizontal pipe 13. Cooperating with the reciprocating rotation of the rotating plate 12, the water is evenly sprayed onto the surface of the concrete to be detected to wet and soften impurities such as dirt and floating slurry, facilitating the scraping and cleaning by the scraping assembly.

[0023] Refer to Figure 2, Figure 3 and Figure 4 , the scraping assembly includes a U-shaped strip 17 arranged on one side of the rotating plate 12. A rotating shaft 18 is rotatably connected to the U-shaped strip 17. A scraping blade 19 is fixedly connected to the outer wall of the rotating shaft 18. A worm gear 20 is fixedly connected to one end of the rotating shaft 18. A worm 21 meshing with the worm gear 20 is rotatably connected to the rotating plate 12. A second gear 22 is fixedly connected to one end of the worm 21. An arc-shaped rack 23 is arranged on one side of the circular ring plate 8. The arc-shaped rack 23 is located on the trajectory of the second gear 22 rotating around the center of the circular ring plate 8; when it is necessary to scrape off impurities such as dirt and floating slurry on the surface of the concrete to be detected, first make the two scraping blades 19 contact the concrete surface. The water spraying assembly wets and softens the dirt, floating slurry and other impurities. The scraping blade 19 cooperates with the reciprocating rotation of the rotating plate 12 to scrape off the dirt, floating slurry and other impurities. Since the scraping blade 19 forms an acute angle with the surface of the concrete to be detected, the scraping effect of the scraping blade 19 is better. When the rotating plate 12 drives the scraping blade 19 to rotate forward, making the second gear 22 move to the arc-shaped rack 23, the second gear 22 will move on the arc-shaped rack 23, so that the second gear 22 can drive the worm 21 to rotate. The worm 21 drives the worm gear 20 and the rotating shaft 18 to rotate. The rotating shaft 18 drives the scraping blade 19 to rotate, so that the scraping blade 19 rotates by a certain angle and still forms an acute angle with the surface of the concrete to be detected. The rotating plate 12 drives the scraping blade 19 to rotate in the reverse direction, so that the scraping blade 19 scrapes the concrete surface, realizing that the scraping blade 19 changes its angle continuously during the reciprocating rotation process, improving the scraping effect of the scraping blade 19. Since the scraping blade 19 has elasticity, the angle can be changed.

[0024] Refer to Figure 2 , Figure 3 and Figure 4, a vertical block 24 is fixedly connected to the rotating plate 12. A limiting groove 25 is formed in the vertical block 24. A moving rod 26 is slidably connected to the limiting groove 25 through a slider. A support plate 27 is fixedly connected to the circular ring plate 8. A telescopic sleeve 28 is fixedly connected to the support plate 27. A lifting block 29 is fixedly connected to the bottom end of the telescopic sleeve 28. The bottom end of the lifting block 29 is rounded. The lower end of the lifting block 29 is located on the trajectory of the moving rod 26 rotating around the center of the circular ring plate 8. A first spring 30 is fixedly connected between the lifting block 29 and the support plate 27. An L-shaped rod 31 is fixedly connected to the lifting block 29. The arc-shaped rack 23 is fixedly connected to one end of the L-shaped rod 31; during the movement of the second gear 22 towards the arc-shaped rack 23, the second gear 22 first meshes with the arc-shaped rack 23. At this time, the moving rod 26 is located at one end of the limiting groove 25. Since the moving rod 26 can move freely in the limiting groove 25, the moving rod 26 must contact the lifting block 29 after the second gear 22 during the rotation of the rotating plate 12. When the second gear 22 reaches the end of the arc-shaped rack 23, the scraping blade 19 just completes the angle change. At this time, the moving rod 26 just contacts the rounded corner at the bottom end of the lifting block 29. Continuing to rotate the moving rod 26, the moving rod 26 can press the lifting block 29 to move upward. The first spring 30 is compressed. The lifting block 29 drives the arc-shaped rack 23 to move upward through the L-shaped rod 31, so that the arc-shaped rack 23 is disengaged from the second gear 22, causing the rotating plate 12 to rotate in the reverse direction. The rotating plate 12 drives the second gear 22 and the vertical block 24 to rotate. The second gear 22 can pass below the arc-shaped rack 23. The moving rod 26 maintains the state of pressing the lifting block 29, and the moving rod 26 slides in the limiting groove 25. When the moving rod 26 reaches the other end of the limiting groove 25, the vertical block 24 can drive the moving rod 26 to leave the bottom of the lifting block 29. Under the action of the first spring 30, the lifting block 29 and the arc-shaped rack 23 are reset. The angle of the scraping blade 19 can be continuously changed through reciprocating rotation.

[0025] Referring to Figure 2 and Figure 5 , the drying assembly includes a hollow mounting strip 32 provided on the side wall of the rotating plate 12. A sponge strip 33 is mounted on the mounting strip 32. A hot air device 34 is mounted on the mounting strip 32. The hot air device 34 is communicated with the mounting strip 32 through a fixed pipe. A plurality of air outlet channels 35 communicating with the mounting strip 32 are formed in the sponge strip 33; after the scraping is completed, the hot air device 34 is started. The hot air device 34 outputs hot air into the mounting strip 32. The hot air is discharged to the concrete surface through the air outlet channels 35. The rotating plate 12 can drive the sponge strip 33 to rotate reciprocally. The sponge strip 33 cooperates with the hot air to accelerate the drying of the concrete surface.

[0026] Referring to Figure 5, a second motor 36 is fixedly connected to the side wall of the rotating plate 12, and a third gear 37 is fixedly connected to the output shaft of the second motor 36. Two spur racks 38 are meshed on the outer side of the third gear 37, and a cross bar 39 is fixedly connected to the spur racks 38. Two connecting rods 40 that penetrate the rotating plate 12 are fixedly connected to the two cross bars 39, two of which are fixedly connected to the U-shaped bar 17, and the other two connecting rods 40 are fixedly connected to the mounting bar 32; when it is necessary to scrape the concrete surface, the scraper 19 is in contact with the concrete surface, and when it is necessary to wipe the concrete surface, the second motor 36 is started, and the second motor 36 drives the third gear 37 to rotate, and the third gear 37 drives the two spur racks 38 to move in opposite directions, and the spur racks 38 drive the U-shaped bar 17 and the mounting bar 32 to move in opposite directions through the cross bar 39 and the connecting rod 40, so that the scraper 19 leaves the concrete surface and the sponge bar 33 is in contact with the concrete surface.

[0027] Reference Figure 6 The inner wall of the water outlet pipe 14 is fixedly connected with a fixing seat 41, and the middle part of the fixing seat 41 is rotatably connected with a rotating column 42, and a water outlet channel 43 is provided in the rotating column 42, and half of one end of the water outlet channel 43 is located above the fixing seat 41, and the outer wall of the rotating column 42 is fixedly connected with a toggle plate 45, and a second spring 44 is fixedly connected between the toggle plate 45 and the inner wall of the water outlet pipe 14, and an elastic block 46 is fixedly connected to the toggle plate 45, and a rubber plug 47 is fixedly connected to the elastic block 46, and a water outlet 48 facing the rubber plug 47 is provided on the water outlet pipe 14, and a plurality of arc plates 49 facing the rubber plug 47 are fixedly connected to the inner wall of the horizontal pipe 13; when it is necessary to spray water on the concrete surface, water is sprayed with A larger water pressure and a faster speed enter the water outlet pipe 14 from the transverse pipe 13, and the water will impact and press the toggle plate 45, and the toggle plate 45 will drive the rotating column 42 to rotate, and the second spring 44 will be compressed, and the water can be discharged from the water outlet channel 43. The toggle plate 45 can drive the rubber plug 47 to close the water outlet 48 through the elastic block 46. After the water spraying on the concrete surface is completed, the water pressure entering the water outlet pipe 14 is reduced and the speed of the water is reduced. Under the action of the second spring 44, the rotating column 42 and the toggle plate 45 are reset, and the rubber plug 47 leaves the water outlet 48. The water can be blocked by the arc plate 49 and discharged from the water outlet 48. Since the water outlet 48 is directly opposite to the scraper 19, the water sprayed from the water outlet 48 can rinse the surface of the scraper 19.

[0028] Reference Figure 1 and Figure 7, the height adjustment component includes a cylinder 50 fixedly connected to the base 1. A third motor 51 is fixedly connected inside the cylinder 50. The output shaft of the third motor 51 is fixedly connected to a threaded rod 52. An elevator plate 53 is threadedly connected to the outer wall of the threaded rod 52. Four lifting columns 54 slidably penetrate through the top of the elevator plate 53. The orientation adjustment component includes a frame 55 fixedly connected to the tops of the four lifting columns 54. A fourth motor 56 is fixedly connected inside the frame 55. The output shaft of the fourth motor 56 is fixedly connected to a circular plate 57; when it is necessary to adjust the height and orientation of the rebound instrument body 5, start the third motor 51. The third motor 51 drives the threaded rod 52 to rotate. The threaded rod 52 drives the elevator plate 53 to move upward. The elevator plate 53 drives the frame 55 and the fourth motor 56 to move upward through the lifting columns 54, thereby driving the rebound instrument body 5 to reach a suitable height. Start the fourth motor 56. The fourth motor 56 drives the circular plate 57 to rotate. The circular plate 57 drives the rebound instrument body 5 to rotate, so that the rebound instrument body 5 rotates to a suitable orientation.

[0029] Refer to Figure 7 and Figure 8 , the angle adjustment component includes two fixed plates 58 fixedly connected to the circular plate 57. A rotating shaft 59 is fixedly connected between the two fixed plates 58. A rotating block 60 is fixedly connected to the outer wall of the rotating shaft 59. The rotating block 60 is fixedly connected to the bottom of the top plate 2. A limiting block 61 is fixedly connected to the bottom of the top plate 2. A V-shaped opening 62 is formed in the limiting block 61. A third electric push rod 63 is fixedly connected to the circular plate 57. The output end of the third electric push rod 63 is fixedly connected to a moving plate 64. A moving column 65 is fixedly connected to the moving plate 64. The moving column 65 is located at the middle position of the V-shaped opening 62; when it is necessary to adjust the angle of the rebound instrument body 5 to face the concrete surface, start the third electric push rod 63 to drive the moving plate 64 and the moving column 65 to move. The moving column 65 moves in the V-shaped opening 62. The moving column 65 can push the limiting block 61, so that the limiting block 61, the top plate 2 and the rotating block 60 rotate around the rotating shaft 59 by a certain angle, thereby aligning the rebound instrument body 5 with the concrete surface.

[0030] Working principle: When in use, according to the position of the concrete to be detected, adjust the height, azimuth and angle of the top plate 2 and the rebound hammer body 5 through the height adjustment component, azimuth adjustment component and angle adjustment component, so that the detection head of the rebound hammer body 5 can be directly opposite to the surface of the concrete to be detected, realizing the automatic adjustment of the position of the rebound hammer body 5 to adapt to concrete walls with different heights and different inclination angles. First, make the cleaning mechanism directly opposite to the concrete surface through the azimuth adjustment component. First, use the water spraying component to spray water on the dirt, floating slurry and other impurities on the surface of the concrete to be detected, wet and soften the dirt, floating slurry and other impurities, and then cooperate with the scraping component to scrape and clean the wet and softened dirt, floating slurry and other impurities, so as to achieve the purpose of automatically cleaning the surface of the concrete to be detected. After scraping, quickly dry the concrete surface through the drying component. After cleaning, make the detection head of the rebound hammer body 5 directly opposite to the concrete surface again through the azimuth adjustment component, and perform hardness detection through the rebound hammer body 5; When it is necessary to drive the cleaning mechanism to clean the surface of the concrete to be detected, start the second electric push rod 6. The second electric push rod 6 drives the U-shaped plate 7, the first motor 9 and the circular ring plate 8 to move, so that the cleaning mechanism approaches the surface of the concrete to be detected. Start the first motor 9. The first motor 9 drives the first gear 10 to rotate reciprocally. The first gear 10 drives the annular gear 11 to rotate reciprocally. The annular gear 11 drives the rotating plate 12 to rotate reciprocally. The rotating plate 12 can drive the cleaning mechanism to rotate reciprocally, so that the cleaning mechanism can repeatedly clean the surface of the concrete to be detected; When it is necessary to spray water to clean the surface of the concrete to be detected, start the water pump. The water pump can spray the water in the water tank 16 through the connecting pipe 15 and the horizontal pipe 13 from the water outlet pipe 14, and cooperate with the reciprocating rotation of the rotating plate 12 to evenly spray the water onto the surface of the concrete to be detected to wet and soften the dirt, floating slurry and other impurities, which is convenient for the scraping component to scrape and clean; When it is necessary to scrape the dirt, floating slurry and other impurities on the surface of the concrete to be detected, first make the two scraping blades 19 contact with the concrete surface. The water spraying component wets and softens the dirt, floating slurry and other impurities. The scraping blades 19 can scrape the dirt, floating slurry and other impurities in cooperation with the reciprocating rotation of the rotating plate 12. Since the scraping blades 19 are at an acute angle with the surface of the concrete to be detected, the scraping effect of the scraping blades 19 is better. When the rotating plate 12 drives the scraping blades 19 to rotate forward, when the second gear 22 moves to the arc-shaped rack 23, the second gear 22 will move on the arc-shaped rack 23, so that the second gear 22 can drive the worm 21 to rotate. The worm 21 drives the worm wheel 20 and the rotating shaft 18 to rotate. The rotating shaft 18 drives the scraping blades 19 to rotate, so that the scraping blades 19 rotate a certain angle and still remain at an acute angle with the surface of the concrete to be detected. The rotating plate 12 drives the scraping blades 19 to rotate in the reverse direction, and the scraping blades 19 scrape the concrete surface, realizing that the scraping blades 19 change angles continuously during the reciprocating rotation process, improving the scraping effect of the scraping blades 19. Since the scraping blades 19 are elastic, the angles can be changed; During the movement of the second gear 22 toward the arc-shaped rack 23, the second gear 22 first meshes with the arc-shaped rack 23. At this time, the moving rod 26 is located at one end of the limiting groove 25. Since the moving rod 26 moves freely in the limiting groove 25, the moving rod 26 must contact the lifting block 29 after the second gear 22 during the rotation of the rotating plate 12. When the second gear 22 reaches the end of the arc-shaped rack 23, the scraper 19 just completes the angle change. At this time, the moving rod 26 just contacts the rounded corner at the bottom end of the lifting block 29, and the moving rod 26 continues to rotate. The moving rod 26 can press the lifting block 29 to move upward, the first spring 30 is compressed, and the lifting block 29 drives the arc-shaped rack 23 to move upward through the L-shaped rod 31, so that the arc-shaped rack 23 is not meshed with the second gear 22, so that the rotating plate 12 rotates in the opposite direction, and the rotating plate 12 drives the second gear 22 and the vertical block 24 to rotate. The second gear 22 can pass under the arc-shaped rack 23, and the moving rod 26 keeps pressing the lifting block 29, and the moving rod 26 slides in the limiting groove 25. When the moving rod 26 reaches the other end of the limiting groove 25, the vertical block 24 can drive the moving rod 26 to leave the bottom of the lifting block 29. Under the action of the first spring 30, the lifting block 29 and the arc-shaped rack 23 are reset, and the angle of the scraper 19 can be continuously changed through reciprocating rotation. When the scraping is completed, the hot air device 34 is started, and the hot air device 34 outputs hot air into the mounting strip 32, and the hot air is discharged to the concrete surface through the air outlet channel 35. The rotating plate 12 can drive the sponge strip 33 to rotate back and forth, and the sponge strip 33 cooperates with the hot air to accelerate the drying of the concrete surface; When the concrete surface needs to be scraped, the scraper 19 is brought into contact with the concrete surface. When the concrete surface needs to be wiped dry, the second motor 36 is started, the second motor 36 drives the third gear 37 to rotate, and the third gear 37 drives the two spur racks 38 to move in opposite directions. The spur racks 38 drive the U-shaped bar 17 and the mounting bar 32 to move in opposite directions through the cross bar 39 and the connecting rod 40, so that the scraper 19 leaves the concrete surface and the sponge bar 33 is brought into contact with the concrete surface. When it is necessary to spray water on the concrete surface, water enters the water outlet pipe 14 from the horizontal pipe 13 at a greater water pressure and a faster speed. The water will impact and press the toggle plate 45, and the toggle plate 45 will drive the rotating column 42 to rotate. The second spring 44 is compressed, and the water can be discharged from the water outlet channel 43. The toggle plate 45 can drive the rubber plug 47 to close the water outlet 48 through the elastic block 46. After the water spraying on the concrete surface is completed, the water pressure entering the water outlet pipe 14 is reduced and the speed of the water is reduced. Under the action of the second spring 44, the rotating column 42 and the toggle plate 45 are reset, and the rubber plug 47 leaves the water outlet 48. The water can be blocked by the arc plate 49 and discharged from the water outlet 48. Since the water outlet 48 is directly opposite to the scraper 19, the water sprayed from the water outlet 48 can wash the surface of the scraper 19. When it is necessary to adjust the height and orientation of the rebound instrument body 5, start the third motor 51. The third motor 51 drives the threaded rod 52 to rotate. The threaded rod 52 drives the lifting plate 53 to move upward. The lifting plate 53 drives the frame 55 and the fourth motor 56 to move upward through the lifting column 54, thereby driving the rebound instrument body 5 to reach a suitable height. Start the fourth motor 56. The fourth motor 56 drives the circular plate 57 to rotate. The circular plate 57 drives the rebound instrument body 5 to rotate, so that the rebound instrument body 5 rotates to a suitable orientation; When it is necessary to adjust the angle of the rebound instrument body 5 so that it is directly facing the concrete surface, start the third electric push rod 63 to drive the moving plate 64 and the moving column 65 to move. The moving column 65 moves in the V-shaped opening 62. The moving column 65 can push the limit block 61, so that the limit block 61, the top plate 2 and the rotating block 60 rotate around the rotating shaft 59 by a certain angle, so that the rebound instrument body 5 is aligned with the concrete surface.

[0031] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0032] Finally: The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete hardness testing device, comprising a base (1) and a top plate (2), wherein a first electric push rod (3) is fixedly connected to the top of the top plate (2) via a connecting plate, an output end of the first electric push rod (3) is fixedly connected to a mounting plate (4), and a rebound tester body (5) is mounted on the mounting plate (4), characterized in that: Also includes: a cleaning mechanism, the cleaning mechanism being arranged on the top plate (2), the cleaning mechanism comprising a water spraying component for spraying water on the concrete surface, a scraping component for scraping impurities on the concrete surface, and a drying component for drying the concrete surface, and a driving component for driving the cleaning mechanism being arranged on the top plate (2); A position adjustment mechanism is arranged on the top plate (2), and comprises a height adjustment component for adjusting the height of the rebound hammer body (5), an orientation adjustment component for adjusting the orientation of the rebound hammer body (5), and an angle adjustment component for adjusting the angle between the rebound hammer body (5) and the concrete surface.

2. The concrete hardness detection device according to claim 1, characterized in that: The driving assembly comprises a second electric push rod (6) fixedly connected to the top of the top plate (2); the output end of the second electric push rod (6) is fixedly connected to a U-shaped plate (7); the top of the U-shaped plate (7) is fixedly connected to a circular ring plate (8); a first motor (9) is fixedly connected inside the U-shaped plate (7); the output shaft of the first motor (9) is fixedly connected to a first gear (10); a rotating plate (12) is rotatably connected to the circular ring plate (8); and an outer wall of the rotating plate (12) is fixedly connected to a ring gear (11) meshing with the first gear (10).

3. The concrete hardness detection device according to claim 2, characterized in that: The water spray assembly comprises a transverse pipe (13) fixedly connected to the rotating plate (12), a plurality of water outlet pipes (14) fixedly connected to the transverse pipe (13), a water tank (16) fixedly connected to the top plate (2) via a bracket, a water pump being arranged in the water tank (16), and a connecting pipe (15) fixedly connected between the water pump and the transverse pipe (13).

4. The concrete hardness detection device according to claim 3, characterized in that: The scraping assembly comprises a U-shaped bar (17) arranged on one side of the rotating plate (12); a rotating shaft (18) is rotatably connected to the U-shaped bar (17); a scraper (19) is fixedly connected to the outer wall of the rotating shaft (18); a worm gear (20) is fixedly connected to one end of the rotating shaft (18); a worm (21) meshing with the worm gear (20) is rotatably connected to the rotating plate (12); a second gear (22) is fixedly connected to one end of the worm gear (21); an arc-shaped rack (23) is arranged on one side of the annular plate (8); the arc-shaped rack (23) is located on a trajectory of the second gear (22) rotating around the center of the annular plate (8).

5. The concrete hardness detection device according to claim 4, characterized in that: A vertical block (24) is fixedly connected to the rotating plate (12), a limiting groove (25) is provided in the vertical block (24), a moving rod (26) is slidably connected in the limiting groove (25) via a slider, a supporting plate (27) is fixedly connected to the circular ring plate (8), a telescopic sleeve (28) is fixedly connected to the supporting plate (27), a lifting block (29) is fixedly connected to the bottom end of the telescopic sleeve (28), the bottom end of the lifting block (29) is arranged to be rounded, the lower end of the lifting block (29) is located on the trajectory of the moving rod (26) rotating around the center of the circular ring plate (8), a first spring (30) is fixedly connected between the lifting block (29) and the supporting plate (27), an L-shaped rod (31) is fixedly connected to the lifting block (29), and the arc-shaped rack (23) is fixedly connected to one end of the L-shaped rod (31).

6. The concrete hardness detection device according to claim 5, characterized in that: The drying component comprises a mounting strip (32) arranged in a hollow side wall of the rotating plate (12), a sponge strip (33) being mounted on the mounting strip (32), a hot air device (34) being mounted on the mounting strip (32), the hot air device (34) being connected to the mounting strip (32) via a fixed pipe, and a plurality of air outlet channels (35) being arranged on the sponge strip (33) and connected to the mounting strip (32).

7. The concrete hardness detection device according to claim 6, characterized in that: A second motor (36) is fixedly connected to the side wall of the rotating plate (12); an output shaft of the second motor (36) is fixedly connected to a third gear (37); two spur racks (38) are meshed on the outer side of the third gear (37); a cross bar (39) is fixedly connected to the spur racks (38); two connecting rods (40) passing through the rotating plate (12) are fixedly connected to the two cross bars (39); two of the connecting rods (40) are fixedly connected to the U-shaped bar (17), and the other two connecting rods (40) are fixedly connected to the mounting bar (32).

8. The concrete hardness detection device according to claim 7, characterized in that: The inner wall of the water outlet pipe (14) is fixedly connected to a fixing seat (41), the middle part of the fixing seat (41) is rotatably connected to a rotating column (42), a water outlet channel (43) is provided in the rotating column (42), and half of one end of the water outlet channel (43) is located above the fixing seat (41), the outer wall of the rotating column (42) is fixedly connected to a toggle plate (45), a second spring (44) is fixedly connected between the toggle plate (45) and the inner wall of the water outlet pipe (14), an elastic block (46) is fixedly connected to the toggle plate (45), a rubber plug (47) is fixedly connected to the elastic block (46), a water outlet (48) facing the rubber plug (47) is provided on the water outlet pipe (14), and a plurality of arc-shaped plates (49) facing the rubber plug (47) are fixedly connected to the inner wall of the transverse pipe (13).

9. The concrete hardness detection device according to claim 8, characterized in that: The height adjustment component comprises a cylinder (50) fixedly connected to the base (1), a third motor (51) fixedly connected inside the cylinder (50), an output shaft of the third motor (51) fixedly connected to a threaded rod (52), an outer wall of the threaded rod (52) threadedly connected to a lifting plate (53), four lifting columns (54) slidingly passing through the top of the lifting plate (53), and the azimuth adjustment component comprises a frame (55) fixedly connected to the top ends of the four lifting columns (54), a fourth motor (56) fixedly connected inside the frame (55), and an output shaft of the fourth motor (56) fixedly connected to a circular plate (57).

10. The concrete hardness detection device according to claim 9, characterized in that: The angle adjustment assembly comprises two fixed plates (58) fixedly connected to a circular plate (57); a rotating shaft (59) is fixedly connected between the two fixed plates (58); a rotating block (60) is fixedly connected to the outer wall of the rotating shaft (59); the rotating block (60) is fixedly connected to the bottom of the top plate (2); a limiting block (61) is fixedly connected to the bottom of the top plate (2); a V-shaped opening (62) is provided on the limiting block (61); a third electric push rod (63) is fixedly connected to the circular plate (57); an output end of the third electric push rod (63) is fixedly connected to a moving plate (64); a moving column (65) is fixedly connected to the moving plate (64); and the moving column (65) is located in the middle of the V-shaped opening (62).

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