Bridge engineering material strength detection drilling and sampling device and use method

Abstract

The invention discloses a material strength detection drilling and sampling device for bridge engineering and a use method, and relates to the technical field of bridge construction detection. The device comprises a device body, a control assembly is fixed to the top of the device body, a fixing plate is fixed to the moving end of the control assembly, a second motor is fixed to the top of the fixing plate through a support, a rotating rod is fixed to the output end of the second motor, a drilling barrel is fixed to the bottom of the rotating rod, and a drill bit is fixed to the bottom of the drilling barrel. And an anti-cracking device is arranged below the fixing plate and comprises a T-shaped cylinder. Through the arrangement of the anti-cracking device, the fixing plate, the side frame and the through hole disc are matched to drive the T-shaped barrel to be pressed on the drilling ground, the T-shaped barrel exerts uniform pressure on the drilling ground, uneven stress generated in the drilling process of a drill bit is effectively reduced, and therefore the problem that the surface of concrete cracks due to stress concentration is solved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction detection, and in particular to a material strength detection drilling sampling device for bridge engineering and a use method thereof. Background Art

[0002] Material strength testing drilling sampling devices for bridge engineering are used to drill samples of concrete or other materials from bridge structures to test their strength and quality. These devices are usually equipped with drill bits, sampling tubes and drilling rigs to extract core samples through drilling for laboratory analysis to evaluate the performance of the materials and the overall safety of the bridge. The device has high accuracy and stability and is suitable for different types of bridge structures.

[0003] A Chinese patent with patent announcement number CN220932446U discloses a material strength testing drilling sampling device for bridge engineering, including a drilling machine, a support frame that supports the drilling machine and can move the drilling machine to a sampling position, a drill bit for cutting concrete is mounted on the output shaft of the drilling machine, and a blocking assembly is detachably connected to the output end of the drilling machine. The blocking assembly includes a blocking cylinder sleeved outside the drill bit, and a displacement member that limits the reciprocating movement of the blocking cylinder along the long side direction of the drill bit for a certain distance. The blocking cylinder and the drill bit are coaxially arranged, and a space is left between the blocking cylinder and the drill bit, so that splashed sewage can be blocked, thereby preventing the sewage from splashing to other parts of the equipment or splashing onto construction personnel to a certain extent.

[0004] However, the current drilling sampling device has the following problems: in the process of using a drill bit to drill into the ground for sampling, since the bridge ground is usually paved with concrete, the drilling process is likely to cause cracks in the bridge ground around the hole, affecting the sampling. Therefore, we propose a material strength testing drilling sampling device for bridge engineering and a method for use. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a drilling sampling device for material strength detection in bridge engineering and a method for using the same, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a material strength detection drilling sampling device for bridge engineering, comprising a device body, a control component is fixed on the top of the device body, a fixed plate is fixed on the moving end of the control component, a motor 2 is fixed on the top of the fixed plate through a bracket, a rotating rod is fixed on the output end of the motor 2, a drill barrel is fixed on the bottom of the rotating rod, a drill bit is fixed on the bottom of the drill barrel, an anti-cracking device is arranged under the fixed plate, the anti-cracking device comprises a T-shaped cylinder and two side frames, the two side frames are respectively fixed on both sides of the fixed plate, a fixing column is penetrated and slidably installed on the top of the two side frames, a through-hole disk is fixed on the bottom of the fixing column, a spring is arranged between the through-hole disk and the side frame, the T-shaped cylinder is fixed on the bottom of the through-hole disk, and each time the fixed plate moves downward, the fixing column The fixed plate will drive the side frame to move downward, and the side frame will drive the through-hole plate to move downward through the spring, and the through-hole plate will drive the T-shaped cylinder to move downward until the T-shaped cylinder contacts the ground. When the fixed plate continues to move downward, the spring between the fixed plate and the through-hole plate is compressed. Under the elastic force of the spring, the through-hole plate drives the T-shaped cylinder to be pressed on the drilled ground. A plurality of drain ports are provided on the upper outer wall of the T-shaped cylinder, and the top surface of the T-shaped cylinder is conically arranged. At the same time, the drain port of the T-shaped cylinder is arranged to prevent the T-shaped cylinder from affecting the discharge of cooling water, thereby avoiding the cooling water from failing to be discharged from the drill hole in time, and the heat accumulation between the drill bit and the hole wall, which in turn causes the drill bit to overheat, resulting in excessive wear or damage to the drill bit. At the same time, the conical top surface of the T-shaped cylinder is arranged to be conducive to the discharge of cooling water, thereby preventing the cooling water from flowing back into the drill hole after being discharged from the drain port of the T-shaped cylinder.

[0007] According to the above technical scheme, the anti-cracking device also includes a rotating wheel 1, a rotating wheel 2, a gear rod, a T-shaped cylinder, and a rotating ring. The rotating wheel 1 is fixed at the upper outer wall of the rotating rod, the rotating wheel 2 penetrates and is rotatably installed on the top of the fixed plate, the rotating wheel 2 and the rotating wheel 1 are connected by a belt transmission, the gear rod penetrates and is rotatably installed on the top of the device body, a cross rod is fixed on the top of the gear rod, and the cross rod penetrates the bottom of the rotating wheel 2, the rotating ring is rotatably installed on the bottom of the through-hole disk, a plurality of fixed leaves are evenly fixed on the bottom circumference of the rotating ring, a gear ring is fixed on the outside of the rotating ring, the gear ring is meshed with the gear rod, and when the rotating rod rotates, it will drive the rotating wheel 1 to rotate, the rotating wheel 1 will drive the rotating wheel 2 to rotate through the belt, the rotating wheel 2 drives the cross rod to rotate, the cross rod drives the gear rod to rotate, the gear rod drives the gear ring to rotate, and the gear ring drives the fixed leaves to rotate through the rotating ring.

[0008] According to the above technical solution, the control component includes a U-shaped frame, which is fixed on the top of the device body. The top of the inner wall of the device body rotates a screw, and the screw is driven by a motor. The external thread of the screw is connected to a movable plate, and the movable plate is slidably installed on the inner side of the U-shaped frame. The movable plate is the movable end of the control component.

[0009] The two L-shaped clamps are located in the inner wall of the drill tube, and the two L-shaped clamps are located in the inner wall of the drill tube. The two L-shaped clamps are located in the inner wall of the drill tube. The two L-shaped clamps have cross rods that penetrate the inner wall of the drill tube, and a spring is provided between the L-shaped clamps and the outer wall of the drill tube. A triangular block is fixed to the top of the two L-shaped clamps away from the drill tube. The through-hole plate is slidably installed on the lower outer wall of the rotating rod, and a spring is provided between the through-hole plate and the top of the drill tube. A serrated plate is fixed on both sides of the bottom of the through-hole plate. The inner wall of the bevel ring is inclined, and the ends of the two L-shaped clamps' cross rods that are away from each other are semicircular. The inclined surface of the bevel ring is located on the semicircular motion trajectory of the L-shaped clamp. The sawtooth inclined surface and the inclined surface of the triangular block are relatively set, and when the drill tube moves downward, the drill tube will drive the L-shaped clamping plate to move downward. When the semicircular shape of the L-shaped clamping plate moves to the inclined surface position of the inclined surface ring, the inclined surface of the inclined surface ring will push the L-shaped clamping plate to move in the direction of the center of the drill tube, and the spring corresponding to the L-shaped clamping plate is compressed. The L-shaped clamping plate will clamp the core block at this time, and the L-shaped clamping plate will drive the triangular block to move with it, and the inclined surface of the triangular block pushes the sawtooth inclined surface of the sawtooth plate to drive the sawtooth plate to move upward, and the sawtooth plate pushes the through-hole plate to slide upward along the outer wall of the rotating rod, and the spring corresponding to the through-hole plate is stretched until the triangular block passes over the sawtooth inclined surface of the sawtooth plate, and the through-hole plate will be reset by the corresponding spring, and the through-hole plate drives the sawtooth plate to reset. At this time, under the action of the spring elastic force corresponding to the L-shaped clamping plate, the serrated vertical surface of the serrated plate is against the vertical surface of the triangular block, and the serrated plate limits the position of the L-shaped clamping plate through the triangular block.

[0010] According to the above technical solution, an anti-drop device is arranged above the through-hole disk, and the anti-drop device includes a ring frame and four baffles. The ring frame is fixed to the top of the fixed plate, and four interference rods are evenly fixed on the outer wall circumference of the ring frame. Four sliding grooves are evenly opened on the top circumference of the through-hole disk, and the four baffles are respectively slidably installed in the four sliding grooves of the through-hole disk, and an L-shaped oblique rod is fixed to the bottom of the four baffles, and a spring is arranged between the L-shaped oblique rod and the top of the through-hole disk, and the top of the L-shaped oblique rod is arranged in an inclined surface, and the inclined surface of the L-shaped oblique rod is located on the movement trajectory of the interference rod. When the fixed plate moves downward, the fixed plate drives the resistance rod to move downward through the ring frame, and the resistance rod pushes the inclined surface of the L-shaped oblique rod to drive the L-shaped oblique rod to move in the direction away from the center of the through-hole disk, and the L-shaped oblique rod drives the blocking rod to move along the slide groove of the through-hole disk in the direction away from the center of the through-hole disk, and the blocking rod no longer blocks the through hole of the through-hole disk. At this time, the drill bit can pass through the through hole of the through-hole disk. During each upward movement of the fixed plate, when the L-shaped clamping plate clamps the core block inside the drill barrel, the resistance rod will no longer push the inclined surface of the L-shaped oblique rod, and the L-shaped oblique rod is reset by the corresponding spring, and the L-shaped oblique rod drives the blocking rod to block the through hole of the through-hole disk.

[0011] A method for using a drilling sampling device for material strength detection of a bridge project comprises the following steps:

[0012] S1, moving the device body to the position where the drilling sampling is to be carried out;

[0013] S2, driving the fixed plate to move downward through the control assembly, and the fixed plate drives the drill bit to contact the ground through the rotating rod and the drill tube;

[0014] S3, then the motor 2 drives the rotating rod to rotate, and the rotating rod drives the drill bit to rotate through the drill barrel. At this time, the control component continues to drive the fixed plate to move downward, and the fixed plate drives the drill bit through the rotating rod and the drill barrel to drill and sample;

[0015] S4. During the drilling process, staff will sprinkle cooling water on the drill bit;

[0016] S5. When the drill bit drills into the soil below the bridge concrete, the second motor is stopped, and the fixed plate is driven to move upward through the control component, and the fixed plate drives the drill bit to move out of the borehole through the rotating rod and the drill tube;

[0017] S6. The drill tube can bring the core block in the borehole out of the borehole through the sample clamping device, thereby completing the material drilling and sampling operation of the bridge project.

[0018] The present invention provides a drilling sampling device and a method for using the material strength test of a bridge project. It has the following beneficial effects:

[0019] (1) The present invention sets an anti-cracking device so that the fixed plate, side frame, and through-hole plate cooperate to drive the T-shaped cylinder to press on the drilled ground. The T-shaped cylinder applies uniform pressure to the ground at the drilled hole, effectively reducing the uneven stress generated by the drill bit during the drilling process, thereby avoiding the problem of cracking of the concrete surface due to stress concentration. At the same time, the drainage port of the T-shaped cylinder prevents the T-shaped cylinder from affecting the discharge of cooling water, thereby avoiding the problem that the cooling water fails to be discharged from the drill hole in time, the heat accumulates between the drill bit and the hole wall, and then causes the drill bit to overheat, resulting in excessive wear or damage to the drill bit. At the same time, the conical setting of the top surface of the T-shaped cylinder is conducive to the discharge of cooling water, and prevents the problem that the cooling water will flow back into the drill hole after being discharged from the drainage port of the T-shaped cylinder; at the same time, the rotating rod, the first rotating wheel, the second rotating wheel, the cross rod, the gear rod, the gear ring, and the rotating ring cooperate to drive the fixed blade to rotate, thereby accelerating the efficiency of cooling water discharge at the conical top surface of the T-shaped cylinder.

[0020] (2) The present invention provides a sample clamping device so that the drill tube, L-shaped clamping plate, bevel ring, triangular block, serrated plate, and through-hole plate cooperate to drive the L-shaped clamping plate to stably clamp the core block inside the drill tube, thereby facilitating the staff to take the core block out of the drill hole, thereby greatly improving the work efficiency of drilling and sampling of bridge engineering materials.

[0021] (3) The present invention sets an anti-drop device so that the fixed plate, the ring frame, the abutment rod and the L-shaped inclined rod cooperate with each other. When the drill tube is moved out of the drilling hole, the blocking rod blocks the through hole of the through hole plate, thereby avoiding the problem that the drill tube is subjected to external force after moving out of the drilling hole, resulting in the L-shaped clamping plate not clamping the core block firmly, and the core block will fall back into the drilling hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is schematically shown as a whole Figure 1 ;

[0023] Figure 2 The present invention is schematically shown as a whole Figure 2 ;

[0024] Figure 3 Schematic diagram of the anti-cracking device of the present invention Figure 1 ;

[0025] Figure 4 Schematic diagram of the anti-cracking device of the present invention Figure 2 ;

[0026] Figure 5 is a schematic diagram of a sample clamping device of the present invention;

[0027] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at A;

[0028] Figure 7Schematic diagram of the anti-fall device of the present invention.

[0029] In the figure: 1. device body; 11. U-shaped frame; 12. moving plate; 13. screw; 14. motor 1; 15. fixed plate; 16. motor 2; 17. rotating rod; 18. drill tube; 19. drill bit; 2. anti-cracking device; 21. side frame; 22. fixed column; 23. through-hole disk; 24. rotating wheel 1; 25. rotating wheel 2; 26. cross rod; 27. gear ring; 28. gear rod; 29. ​​fixed leaf; 210. T-shaped cylinder; 211. rotating ring; 3. sample clamping device; 31. bevel ring; 32. L-shaped clamping plate; 33. triangular block; 34. serrated plate; 35. through-hole plate; 4. anti-drop device; 41. ring frame; 42. resistance rod; 43. L-shaped oblique rod; 44. stop rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] See also Figure 1 - Figure 7An embodiment of the present invention is: a material strength detection drilling sampling device for bridge engineering, comprising a device body 1, a control component is fixed on the top of the device body 1, a fixed plate 15 is fixed on the moving end of the control component, a motor 16 is fixed on the top of the fixed plate 15 through a bracket, a rotating rod 17 is fixed on the output end of the motor 16, a drill tube 18 is fixed on the bottom of the rotating rod 17, a drill bit 19 is fixed on the bottom of the drill tube 18, an anti-cracking device 2 is arranged below the fixed plate 15, the anti-cracking device 2 comprises a T-shaped cylinder 210 and two side frames 21, the two side frames 21 are respectively fixed on both sides of the fixed plate 15, the tops of the two side frames 21 are penetrated and slidably installed with fixed columns 22, the bottom of the fixed columns 22 is fixed with a through-hole disk 23, a spring is arranged between the through-hole disk 23 and the side frames 21, the T-shaped cylinder 210 is fixed to the bottom of the through-hole disk 23, through the above structure The setting enables the through-hole disk 23 to drive the T-shaped cylinder 210 to be pressed on the ground of the drill hole. The T-shaped cylinder 210 applies uniform pressure to the ground at the drill hole, effectively reducing the uneven stress generated by the drill bit 19 during the drilling process, thereby avoiding the problem of cracking of the concrete surface due to stress concentration. A plurality of drainage ports are provided on the upper outer wall of the T-shaped cylinder 210. The top surface of the T-shaped cylinder 210 is conical. At the same time, the drainage port of the T-shaped cylinder 210 is set to prevent the T-shaped cylinder 210 from affecting the discharge of cooling water, thereby avoiding the cooling water from failing to be discharged from the drill hole in time, and the heat accumulation between the drill bit 19 and the hole wall, thereby causing the drill bit 19 to overheat, resulting in excessive wear or damage to the drill bit 19. At the same time, the conical setting of the top surface of the T-shaped cylinder 210 is conducive to the discharge of cooling water, and prevents the cooling water from flowing back into the drill hole after being discharged from the drainage port of the T-shaped cylinder 210.

[0032] The anti-cracking device 2 also includes a rotating wheel 24, a rotating wheel 25, a gear rod 28, a T-shaped cylinder 210, and a rotating ring 211. The rotating wheel 24 is fixed at the upper outer wall of the rotating rod 17, the rotating wheel 25 penetrates and is rotatably installed on the top of the fixed plate 15, the rotating wheel 25 and the rotating wheel 24 are connected by a belt transmission, the gear rod 28 penetrates and is rotatably installed on the top of the device body 1, a cross rod 26 is fixed on the top of the gear rod 28, and the cross rod 26 penetrates the bottom of the rotating wheel 25, the rotating ring 211 is rotatably installed on the bottom of the through-hole disk 23, and a plurality of fixed leaves 29 are evenly fixed on the bottom circumference of the rotating ring 211, and a gear ring 27 is fixed on the outside of the rotating ring 211, and the gear ring 27 is meshed with the gear rod 28. Through the arrangement of the above structure, the gear ring 27 drives the fixed leaves 29 to rotate through the rotating ring 211, thereby accelerating the efficiency of cooling water discharge at the cone of the top surface of the T-shaped cylinder 210.

[0033] The control component includes a U-shaped frame 11, which is fixed on the top of the device body 1. The top of the inner wall of the device body 1 rotates a screw 13, and the screw 13 is driven by a motor 14. The external thread of the screw 13 is connected to a moving plate 12, and the moving plate 12 is slidably installed on the inner side of the U-shaped frame 11. The moving plate 12 is the moving end of the control component.

[0034] A sample clamping device 3 is provided at the drill tube 18, and the sample clamping device 3 includes a bevel ring 31, a through-hole plate 35, and two L-shaped clamping plates 32. The bevel ring 31 is fixed to the top of the through-hole plate 23. Receiving grooves are provided on both sides of the inner wall of the drill tube 18. The two L-shaped clamping plates 32 are respectively located inside the receiving grooves on both sides of the drill tube 18. The cross rods of the two L-shaped clamping plates 32 pass through the inner wall of the drill tube 18, and a spring is provided between the L-shaped clamping plates 32 and the outer wall of the drill tube 18. A triangular block 33 is fixed to the top of the two L-shaped clamping plates 32 away from the drill tube 18. The through-hole plate 35 is slidably installed on the lower outer wall of the rotating rod 17, and the through-hole plate 35 is connected to the rotating rod 17. A spring is provided between the top of the drill barrel 18, and serrated plates 34 are fixed on both sides of the bottom of the through-hole plate 35. The inner wall of the bevel ring 31 is arranged in a bevel shape, and the ends of the two L-shaped clamping plates 32 cross-bracing rods that are away from each other are arranged in a semicircular shape. The bevel of the bevel ring 31 is located on the semicircular movement trajectory of the L-shaped clamping plate 32, and the serrated bevel of the serrated plate 34 is arranged opposite to the bevel of the triangular block 33. Through the arrangement of the above structure, the L-shaped clamping plate 32 can stably clamp the core block inside the drill barrel 18, so that it is convenient for the staff to take the core block out of the drill hole, thereby greatly improving the work efficiency of drilling and sampling of bridge engineering materials.

[0035] When in use, the device body 1 is moved to the position where the hole is to be drilled and sampled, and the fixed plate 15 is driven to move downward by the control component. The fixed plate 15 drives the drill bit 19 to contact the ground through the rotating rod 17 and the drill tube 18, and then the rotating rod 17 is driven to rotate by the motor 2 16, and the rotating rod 17 drives the drill bit 19 to rotate through the drill tube 18. At this time, the control component continues to drive the fixed plate 15 to move downward, and the fixed plate 15 drives the drill bit 19 through the rotating rod 17 and the drill tube 18 to drill and sample. During the drilling process of the drill bit 19, there will be staff to sprinkle cooling water at the drill bit 19. When the drill bit 19 drills into the soil under the bridge concrete , stop motor 2 16, drive the fixed plate 15 to move upward through the control component, the fixed plate 15 drives the drill bit 19 to move out of the borehole through the rotating rod 17 and the drill tube 18, and the drill tube 18 can bring the core block in the borehole out of the borehole through the sample clamping device 3, thereby completing the material drilling sampling operation of the bridge project, each time the fixed plate 15 moves downward, the fixed plate 15 will drive the side frame 21 to move downward, the side frame 21 drives the through-hole plate 23 to move downward through the spring, and the through-hole plate 23 drives the T-shaped tube 210 to move downward until the T-shaped tube 210 contacts the ground, and when the fixed plate 15 continues to move downward, the fixed plate The spring between 15 and the through-hole plate 23 is compressed. Under the elastic force of the spring, the through-hole plate 23 drives the T-shaped cylinder 210 to press on the ground where the drill hole is drilled. The T-shaped cylinder 210 applies uniform pressure to the ground where the drill hole is drilled, effectively reducing the uneven stress generated by the drill bit 19 during the drilling process, thereby avoiding the problem of cracking of the concrete surface due to stress concentration. At the same time, the drainage port of the T-shaped cylinder 210 is set to prevent the T-shaped cylinder 210 from affecting the discharge of cooling water, thereby avoiding the cooling water from failing to be discharged from the drill hole in time, and the heat accumulation between the drill bit 19 and the hole wall, thereby causing the drill bit 19 to overheat, resulting in the drill bit 19 The problem of excessive wear or damage is solved. At the same time, the conical setting of the top surface of the T-shaped cylinder 210 is conducive to the discharge of cooling water and prevents the cooling water from flowing back into the drilled hole after being discharged from the drain port of the T-shaped cylinder 210; when the rotating rod 17 rotates, it will drive the rotating wheel 24 to rotate, and the rotating wheel 24 will drive the rotating wheel 25 to rotate through the belt, and the rotating wheel 25 will drive the cross rod 26 to rotate, and the cross rod 26 will drive the gear rod 28 to rotate, and the gear rod 28 will drive the gear ring 27 to rotate, and the gear ring 27 will drive the fixed blade 29 to rotate through the rotating ring 211, thereby accelerating the efficiency of cooling water discharge at the conical top surface of the T-shaped cylinder 210.

[0036] It is worth noting that when the fixed plate 15 moves downward, the fixed plate 15 will drive the rotating wheel 25 to move downward along the outer wall of the cross rod 26. When the through-hole disk 23 drives the T-shaped cylinder 210 to move downward, the through-hole disk 23 will drive the gear ring 27 to slide downward along the outside of the gear rod 28 through the rotating ring 211. Here, the gear ring 27 is always in contact with the gear rod 28.

[0037] The specific operation process of the control component is that the motor 14 drives the screw 13 to rotate, and the screw 13 drives the moving plate 12 to move downward along the inside of the U-shaped frame 11, and the moving plate 12 drives the fixed plate 15 to move along.

[0038] The specific operation process of the sample clamping device 3 is as follows: when the drill tube 18 moves downward, the drill tube 18 will drive the L-shaped clamping plate 32 to move downward. When the semicircular shape of the L-shaped clamping plate 32 moves to the inclined surface position of the inclined surface ring 31, the inclined surface of the inclined surface ring 31 will push the L-shaped clamping plate 32 to move toward the center of the drill tube 18. The spring corresponding to the L-shaped clamping plate 32 is compressed. The L-shaped clamping plate 32 will clamp the core block at this time, and the L-shaped clamping plate 32 will drive the triangular block 33 to move with it. The inclined surface of the triangular block 33 pushes the sawtooth inclined surface of the sawtooth plate 34 to drive the sawtooth plate 34 to move upward, and the sawtooth plate 34 pushes the through-hole plate 35 to slide upward along the outer wall of the rotating rod 17. The spring corresponding to the through-hole plate 35 is stretched until the triangular block 33 passes over the serrated inclined surface of the serrated plate 34, and the through-hole plate 35 is reset by the corresponding spring, and the through-hole plate 35 drives the serrated plate 34 to reset. At this time, under the action of the spring elastic force corresponding to the L-shaped clamping plate 32, the serrated vertical surface of the serrated plate 34 is against the vertical surface of the triangular block 33, and the serrated plate 34 limits the position of the L-shaped clamping plate 32 through the triangular block 33, so that the L-shaped clamping plate 32 can stably clamp the core block inside the drill tube 18, so that the staff can take the core block out of the drill hole, thereby greatly improving the work efficiency of drilling and sampling of bridge engineering materials.

[0039] See also Figure 1 - Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, an anti-drop device 4 is arranged above the through-hole disk 23, and the anti-drop device 4 includes a ring frame 41 and four blocking rods 44. The ring frame 41 is fixed to the top of the fixed plate 15, and four abutment rods 42 are evenly fixed on the outer wall circumference of the ring frame 41. Four slide grooves are evenly opened on the top circumference of the through-hole disk 23, and the four blocking rods 44 are respectively slidably installed in the four slide grooves of the through-hole disk 23. The bottoms of the four blocking rods 44 are fixed with An L-shaped inclined rod 43 is provided, and a spring is provided between the L-shaped inclined rod 43 and the top of the through-hole disk 23. The top of the L-shaped inclined rod 43 is provided with an inclined surface, and the inclined surface of the L-shaped inclined rod 43 is located on the movement trajectory of the abutment rod 42. Through the arrangement of the above structure, the L-shaped inclined rod 43 drives the blocking rod 44 to block the through hole of the through-hole disk 23, thereby avoiding the problem that the drill tube 18 is subjected to external force after moving out of the drill hole, resulting in the L-shaped clamping plate 32 not clamping the core block firmly, and the core block will fall back into the drill hole.

[0040] When in use, each time the fixing plate 15 moves downward, the fixing plate 15 drives the abutment rod 42 to move downward through the ring frame 41, and the abutment rod 42 pushes the inclined surface of the L-shaped inclined rod 43 to drive the L-shaped inclined rod 43 to move in a direction away from the center of the through-hole plate 23, and the L-shaped inclined rod 43 drives the blocking rod 44 to move along the slide groove of the through-hole plate 23 in a direction away from the center of the through-hole plate 23, and the blocking rod 44 no longer blocks the through hole of the through-hole plate 23, and the drill bit 19 can pass through the through-hole plate 23. 3, each time the fixing plate 15 moves upward, when the L-shaped clamping plate 32 clamps the core block inside the drill tube 18, the abutting rod 42 will no longer push the inclined surface of the L-shaped inclined rod 43, and the L-shaped inclined rod 43 is reset by the corresponding spring, and the L-shaped inclined rod 43 drives the blocking rod 44 to block the through hole of the through hole plate 23, thereby avoiding the problem that the drill tube 18 is moved out of the drill hole and is subjected to external force, resulting in the L-shaped clamping plate 32 not clamping the core block firmly, and the core block will fall back into the drill hole.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A material strength detection drilling sampling device for bridge engineering, comprising a device body (1), a control assembly is fixed on the top of the device body (1), a fixed plate (15) is fixed on the movable end of the control assembly, a second motor (16) is fixed on the top of the fixed plate (15) through a bracket, a rotating rod (17) is fixed on the output end of the second motor (16), a drill tube (18) is fixed on the bottom of the rotating rod (17), and a drill bit (19) is fixed on the bottom of the drill tube (18), characterized in that: An anti-cracking device (2) is arranged below the fixed plate (15), and the anti-cracking device (2) comprises a T-shaped cylinder (210) and two side frames (21). The two side frames (21) are respectively fixed on two sides of the fixed plate (15). A fixing column (22) is penetrated and slidably installed on the top of the two side frames (21). A through-hole disk (23) is fixed at the bottom of the fixing column (22). A spring is arranged between the through-hole disk (23) and the side frames (21). The T-shaped cylinder (210) is fixed at the bottom of the through-hole disk (23).

2. A drilling sampling device for material strength detection of bridge engineering according to claim 1, characterized in that: The anti-cracking device (2) further comprises a rotating wheel (24), a rotating wheel (25), a gear rod (28), a T-shaped cylinder (210), and a rotating ring (211). The rotating wheel (24) is fixed on the upper outer wall of the rotating rod (17). The rotating wheel (25) penetrates and is rotatably mounted on the top of the fixed plate (15). The rotating wheel (25) and the rotating wheel (24) are connected via a belt transmission. The gear rod (28) penetrates and is rotatably mounted on the top of the device body (1). A cross rod (26) is fixed on the top of the gear rod (28), and the cross rod (26) penetrates the bottom of the rotating wheel (25). The rotating ring (211) is rotatably mounted on the bottom of the through-hole plate (23). A plurality of fixed leaves (29) are evenly fixed on the bottom circumference of the rotating ring (211). A toothed ring (27) is fixed on the outside of the rotating ring (211), and the toothed ring (27) is meshed with the gear rod (28).

3. The material strength detection drilling sampling device for bridge engineering according to claim 1 is characterized by: A plurality of drainage openings are provided on the upper outer wall of the T-shaped cylinder (210), and the top surface of the T-shaped cylinder (210) is arranged in a conical shape.

4. The material strength detection drilling sampling device for bridge engineering according to claim 1 is characterized by: The control component comprises a U-shaped frame (11), wherein the U-shaped frame (11) is fixed on the top of the device body (1), a screw rod (13) is rotated at the top of the inner wall of the device body (1), and the screw rod (13) is driven by a motor (14), an external thread of the screw rod (13) is connected to a moving plate (12), and the moving plate (12) is slidably mounted on the inner side of the U-shaped frame (11), and the moving plate (12) is the moving end of the control component.

5. The material strength detection drilling sampling device for bridge engineering according to claim 1 is characterized by: The drill tube (18) is provided with a sample clamping device (3), which comprises a bevel ring (31), a through-hole plate (35), and two L-shaped clamping plates (32). The bevel ring (31) is fixed to the top of the through-hole plate (23). Both sides of the inner wall of the drill tube (18) are provided with receiving grooves. The two L-shaped clamping plates (32) are respectively located inside the receiving grooves on both sides of the drill tube (18). The transverse support rods of the two L-shaped clamping plates (32) penetrate through the two L-shaped clamping plates. The inner wall of the drill tube (18), and a spring is provided between the L-shaped clamping plate (32) and the outer wall of the drill tube (18), and a triangular block (33) is fixed to the top of the two L-shaped clamping plates (32) away from the drill tube (18), and the through-hole plate (35) is slidably installed on the lower outer wall of the rotating rod (17), and a spring is provided between the through-hole plate (35) and the top of the drill tube (18), and sawtooth plates (34) are fixed to both sides of the bottom of the through-hole plate (35).

6. A drilling sampling device for material strength detection of bridge engineering according to claim 5, characterized in that: The inner wall of the bevel ring (31) is arranged in a beveled shape, the ends of the two L-shaped clamping plates (32) that are away from each other are arranged in a semicircular shape, the bevel of the bevel ring (31) is located on the semicircular motion track of the L-shaped clamping plate (32), and the sawtooth bevel of the sawtooth plate (34) is arranged opposite to the bevel of the triangular block (33).

7. The material strength testing and sampling drilling device for bridge engineering according to claim 1 is characterized by: An anti-drop device (4) is arranged above the through-hole disk (23), and the anti-drop device (4) comprises a ring frame (41) and four blocking rods (44). The ring frame (41) is fixed on the top of the fixed plate (15), and four abutment rods (42) are evenly fixed on the outer wall circumference of the ring frame (41). Four sliding grooves are evenly opened on the top circumference of the through-hole disk (23), and the four blocking rods (44) are respectively slidably installed in the four sliding grooves of the through-hole disk (23). The bottoms of the four blocking rods (44) are all fixed with L-shaped inclined rods (43), and a spring is arranged between the L-shaped inclined rod (43) and the top of the through-hole disk (23).

8. The material strength testing and sampling drilling device for bridge engineering according to claim 7 is characterized by: The top of the L-shaped oblique rod (43) is arranged in the form of an inclined surface, and the inclined surface of the L-shaped oblique rod (43) is located on the movement track of the abutting rod (42).

9. A method for using a material strength detection drilling sampling device for bridge engineering, comprising a material strength detection drilling sampling device for bridge engineering as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1, moving the device body (1) to the position where the drilling sampling is to be carried out; S2, driving the fixed plate (15) to move downward through the control assembly, and the fixed plate (15) drives the drill bit (19) to contact the ground through the rotating rod (17) and the drill tube (18); S3, then the motor 2 (16) drives the rotating rod (17) to rotate, and the rotating rod (17) drives the drill bit (19) to rotate through the drill tube (18), and at this time the control component continues to drive the fixed plate (15) to move downward, and the fixed plate (15) drives the drill bit (19) through the rotating rod (17) and the drill tube (18) to perform drilling sampling; S4. During the drilling process of the drill bit (19), a worker will sprinkle cooling water on the drill bit (19); S5. When the drill bit (19) drills into the soil below the bridge concrete, the motor 2 (16) is stopped, and the fixed plate (15) is driven to move upward through the control component, and the fixed plate (15) drives the drill bit (19) to move out of the borehole through the rotating rod (17) and the drill tube (18); S6. The drill tube (18) can bring the core block in the borehole out of the borehole through the sample clamping device (3), thereby completing the material drilling sampling operation of the bridge project.

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