Foundation pile ultrasonic transmission method detection device

Abstract

The invention discloses a foundation pile ultrasonic transmission method detection device, relates to the field of foundation pile detection, and aims to solve the problem that in the prior art, a transducer and a sounding pipe are likely to collide when a worker takes up a wire, and then the accuracy of measured data is affected. According to the technical scheme, the device is characterized by comprising a box body and an ultrasonic detector fixedly connected to the box body, a first cover plate is detachably connected to the box body, a second cover plate is rotatably connected to the first cover plate, a first threaded rod is fixedly connected into the box body, and a winding drum is in threaded connection to the first threaded rod; a transmission assembly used for transmitting signals to the ultrasonic detector is arranged on the ultrasonic detector, and a driving assembly used for driving the winding drum to move is arranged in the box body. According to the foundation pile ultrasonic transmission method detection device, when foundation pile ultrasonic transmission method detection is carried out, the transmission line can be evenly wound, the transducer is prevented from making contact with the sounding pipe in the ascending stage, after measurement is completed, the transmission line can be prevented from being stacked around the wire coil, and the foundation pile ultrasonic transmission method detection device is convenient to use.

Description

Technical Field

[0001] The invention relates to the field of pile foundation detection, and more specifically, to a pile foundation ultrasonic transmission method detection device. Background Art

[0002] The principle of ultrasonic transmission method for testing concrete quality is to pre-embed several acoustic detection tubes in the pile as channels for ultrasonic receiving and transmitting transducers. During testing, a transmitting probe for transmitting ultrasonic waves is placed in one tube, and a receiving probe for receiving ultrasonic waves is placed in another tube. The two probes are lifted up from the bottom synchronously, and the instrument records the acoustic characteristics of ultrasonic waves propagating in the concrete measuring surface composed of the two tubes. According to the arrival time, amplitude, frequency change and waveform distortion of the wave, after analysis and processing, the quality of the concrete, the nature, size and spatial location of the defects, and the homogeneity of the concrete can be determined.

[0003] When using acoustic wave transmission detection, it is necessary to pre-embed several acoustic detection tubes in the pile according to the design requirements as channels for the acoustic wave transmitting and receiving transducers. Before detection, the pipeline should be cleared to confirm that the acoustic detection tube is unobstructed, and the detection can be started only after the acoustic detection tube is filled with clean water. The transducer is placed inside the acoustic detection tube, and the orifice pulley is installed at the opening of the tube, connected to the radial transducer and the ultrasonic detector host. The lower transducer is to the bottom of the pile, and the transmitting and receiving radial transducers are raised and lowered synchronously at the same elevation. When the transducer rises slowly, the acoustic wave detector is used to detect point by point along the axial direction of the pile at a certain speed. Then the detection data is processed, analyzed and judged to determine the location, range and degree of concrete defects in the pile body.

[0004] When the existing ultrasonic transmission method detection device for pile foundations is conducting acoustic wave detection, the staff is required to manually pull the transmission line evenly to adjust the position of the transducer in the acoustic detection tube. However, if the staff pulls too fast during the pulling process, it is easy to cause the transducer to collide with the acoustic detection tube, thereby affecting the accuracy of the measurement data. In addition, after the measurement is completed, the transmission line of the transducer will be piled up around the wire reel in a messy manner after being pulled, which may cause intertwining between the wires, causing inconvenience in the subsequent arrangement of the wires. Therefore, a new solution is needed to solve this problem. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a pile foundation ultrasonic transmission method detection device, which can evenly reel in the transmission line when performing pile foundation ultrasonic transmission method detection to avoid the transducer from contacting the acoustic detection tube during the rising stage, and after the measurement is completed, it can avoid the transmission line from piling up and intertwining, which is more convenient.

[0006] The above technical purpose of the present invention is achieved through the following technical scheme: a foundation pile ultrasonic transmission method detection device comprises a box body and an ultrasonic detector fixedly connected to the box body, the box body is detachably connected with a cover plate 1, the cover plate 1 is rotatably connected with a cover plate 2, the box body is fixedly connected with a threaded rod 1, the threaded rod 1 is threadedly connected with a winding drum, the ultrasonic detector is provided with a transmission component for transmitting signals to the ultrasonic detector, and the box body is provided with a driving component for driving the winding drum to move.

[0007] The present invention is further configured as follows: the transmission component includes three transmission lines fixedly connected to the ultrasonic detector, a transducer fixedly connected to the other end of the transmission line, and a protective cover fixedly connected to the three transmission lines, the protective cover is fixedly connected to a winding drum at one end away from the ultrasonic detector, the middle section of the protective cover is spirally arranged, the three transmission lines are all wound on the winding drum, and a through hole for the transducer to pass through is opened on the box.

[0008] The present invention is further configured as follows: a plurality of limit blocks are slidably connected to the three transmission lines, two separation rods are fixedly connected to the side of the box body close to the through hole, the two separation rods are respectively located between two adjacent transmission lines, a motor is fixedly connected to the side of the inner wall of the box body close to the through hole, a rubber roller 1 is fixedly connected to the motor, two spring telescopic rods are fixedly connected to the side of the inner wall of the box body close to the through hole, a rubber roller 2 is rotatably connected between the two spring telescopic rods, the rubber roller 1 and the rubber roller 2 are located on the upper and lower sides of the three transmission lines and are in contact with the three transmission lines.

[0009] The present invention is further configured as follows: the driving assembly comprises an electric slide rail fixedly connected in the box body, two sliders slidably connected on the electric slide rail, and a positioning ring fixedly connected on the slider, and the positioning ring is rotationally connected to the winding drum.

[0010] The present invention is further configured as follows: a placement plate is detachably connected to the bottom side of the box body, a plurality of threaded rods 2 are threadedly connected to the placement plate, a plurality of internal threaded grooves adapted to the threaded rods 2 are opened on the bottom side of the box body, limiting plates are fixedly connected to both sides of the placement plate, a positioning plate is fixedly connected between the two limiting plates, a plurality of threaded rods 3 are threadedly connected to the positioning plate, and a base is fixedly connected to the side of the threaded rods 3 away from the box body.

[0011] The present invention is further configured as follows: a multi-stage electric push rod is fixedly connected to the positioning plate, an output end of the multi-stage electric push rod is fixedly connected to the placement plate, a magnet one is fixedly connected to the cover plate two, a magnet two is fixedly connected to the upper side of the box body, and the magnet one and the magnet two are attracted to each other.

[0012] The present invention is further configured as follows: three clamping blocks are fixedly connected to the outer wall of the box body close to the transducer, and the clamping blocks have elastic deformation capability.

[0013] In summary, the present invention has the following beneficial effects: when conducting ultrasonic transmission method testing of pile foundations, the transmission line can be evenly rolled up to avoid contact between the transducer and the acoustic detection tube during the rising stage, and after the measurement is completed, the transmission line can be prevented from piling up and intertwining, which is more convenient. At the same time, it can also be adjusted according to the terrain to make the box parallel to the ground, ensuring that each transducer is in a parallel state in the acoustic detection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 It is a schematic diagram of the partial structure of the present invention Figure 1 ; Figure 4 for Figure 3 A magnified view of part A; Figure 5 It is a schematic diagram of the partial structure of the present invention Figure 2 ; Figure 6 The cross-sectional view of the present invention Figure 1 ; Figure 7 The cross-sectional view of the present invention Figure 2 ; Figure 8 The cross-sectional view of the present invention Figure 3 .

[0015] In the figure: 1. box body; 2. ultrasonic detector; 3. cover plate 1; 4. cover plate 2; 5. threaded rod 1; 6. winding drum; 7. transmission line; 8. transducer; 9. protective cover; 10. through hole; 11. limit block; 12. separation rod; 13. motor; 14. rubber roller 1; 15. spring telescopic rod; 16. rubber roller 2; 17. electric slide rail; 18. slider; 19. positioning ring; 20. threaded groove; 21. placement plate; 22. threaded rod 2; 23. limit plate; 24. positioning plate; 25. threaded rod 3; 26. base; 27. multi-stage electric push rod; 28. magnet 1; 29. ​​magnet 2; 30. clamping block. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] A pile ultrasonic transmission method detection device, such as Figure 1-Figure 8As shown, it includes a box body 1 and an ultrasonic detector 2 fixedly connected to the box body 1, a cover plate 3 is detachably connected to the box body 1, a cover plate 2 4 is rotatably connected to the cover plate 3, a threaded rod 5 is fixedly connected in the box body 1, a winding drum 6 is threadedly connected to the threaded rod 5, a transmission component for transmitting a signal to the ultrasonic detector 2 is provided on the ultrasonic detector 2, a driving component for driving the winding drum 6 to move is provided in the box body 1, and the transmission component includes three transmission lines 7 fixedly connected to the ultrasonic detector 2, a transmission line 7, and a transducer 8 fixedly connected to the other end of the three transmission lines 7 and a protective cover 9 fixedly connected to the three transmission lines 7. The protective cover 9 is fixedly connected to the winding drum 6 at one end away from the ultrasonic detector 2. The middle section of the protective cover 9 is spirally arranged. The three transmission lines 7 are all wound on the winding drum 6. The pitch of the threaded rod 5 is greater than the width of the three transmission lines 7 when laid flat. This can avoid the stacking of the three transmission lines 7 during winding, which causes the three transducers 8 to be unable to move up in parallel, resulting in a decrease in measurement accuracy. A through hole 10 is opened on the box body 1 for the transducer 8 to pass through.

[0018] like Figure 1-Figure 8 As shown, when using the device, first place the box 1 at a high place, and then control the driving component to move and rotate the winding drum 6 so that a part of the transmission line 7 is detached from the winding drum 6. After releasing a certain length of the transmission line 7, first manually put the transducer 8 into the acoustic detection tube installed with the orifice pulley, and then start the driving component according to the length of the acoustic detection tube to make the other part of the transmission line 7 detach from the winding drum 6, so that the transducer 8 is in a specified position in the acoustic detection tube. When performing the test, start the driving component to reel in the transmission line 7, so that the transducer 8 can move upward evenly in the acoustic detection tube. In this way, when performing the ultrasonic transmission method test of the pile foundation, the transmission line 7 can be evenly retracted and released to avoid the contact between the transducer 8 and the inner wall of the acoustic detection tube, and after the measurement is completed, the transmission line 7 can be prevented from being piled up and intertwined, which is more convenient.

[0019] like Figure 3 , Figure 5 As shown, a plurality of limit blocks 11 are slidably connected to the three transmission lines 7, which can further prevent the three transmission lines 7 from stacking when winding, and can prevent the three transmission lines 7 from stacking themselves. Two separation rods 12 are fixedly connected to the side of the box body 1 near the through hole 10, and the two separation rods 12 are respectively located between two adjacent transmission lines 7. A motor 13 is fixedly connected to the side of the inner wall of the box body 1 near the through hole 10, and a rubber roller 14 is fixedly connected to the motor 13. Two spring telescopic rods 15 are fixedly connected to the side of the inner wall of the box body 1 near the through hole 10, and a rubber roller 2 16 is rotatably connected between the two spring telescopic rods 15. The rubber roller 14 and the rubber roller 2 16 are located on the upper and lower sides of the three transmission lines 7 and are in contact with the three transmission lines 7. The setting of the spring telescopic rod 15 and the rubber roller 2 16 can ensure that the three transmission lines 7 always keep in contact with the rubber roller 14.

[0020] like Figure 3 , Figure 5 As shown, when the transmission line 7 is separated from the winding drum 6, the motor 13 is turned on at the same time to drive the rubber roller 14 to rotate and bring the transmission line 7 out of the box 1. At this time, the limit block 11 will be blocked by the separation rod 12 and retained between the separation rod 12 and the winding drum 6. When the transmission line 7 is wound up, the cover plate 2 4 is manually rotated, and then the stacked limit blocks 11 are manually blocked to prevent the stacked limit blocks 11 from following the transmission line 7 to be wound onto the winding drum 6. Then, when the winding drum 6 is wound once, a limit block 11 is manually released, and the cover plate 2 4 can be closed after the last limit block 11 is released.

[0021] like Figure 3 , Figure 6 As shown, the driving assembly includes an electric slide rail 17 fixedly connected in the box 1, two sliders 18 slidably connected on the electric slide rail 17, and a positioning ring 19 fixedly connected on the slider 18. The positioning ring 19 is rotatably connected to the winding drum 6. When the winding drum 6 needs to move, the electric slide rail 17 can be started to drive the two sliders 18 to move on the electric slide rail 17, thereby driving the positioning ring 19 to move. When the positioning ring 19 moves, it will drive the winding drum 6 to move on the threaded rod 15. When the winding drum 6 moves on the threaded rod 15, because the threaded rod 15 is in a fixed state, the winding drum 6 will rotate to wind and release the transmission line 7. And this method can avoid pulling the transmission line 7 and avoid stacking of the transmission line 7 as much as possible.

[0022] like Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, a placement plate 21 is detachably connected to the bottom side of the box body 1, and a plurality of threaded rods 22 are threadedly connected to the placement plate 21. Limiting plates 23 are fixedly connected to both sides of the placement plate 21. A plurality of internal threaded grooves 20 adapted to the threaded rods 22 are provided on the bottom side of the box body 1. A positioning plate 24 is fixedly connected between the two limiting plates 23. A plurality of threaded rods 3 25 are threadedly connected to the positioning plate 24. A base 26 is fixedly connected to the side of the threaded rods 3 25 away from the box body 1. Before starting the inspection, the box body 1 is first placed on the placement plate 21, and then each threaded rod 22 is screwed into its corresponding threaded groove 20. Finally, according to the height of the ground, the threaded rods 3 25 are rotated at a lower position to keep the box body 1 parallel to the ground, and then the inspection work can be carried out.

[0023] like Figure 1 , Figure 2 , Figure 7 , Figure 8As shown, a multi-stage electric push rod 27 is fixedly connected to the positioning plate 24, and the output end of the multi-stage electric push rod 27 is fixedly connected to the placement plate 21. The box 1 can be lifted to different heights according to the detection position for easy inspection. A magnet 1 28 is fixedly connected to the cover plate 24, and a magnet 2 29 is fixedly connected to the upper side of the box 1. The magnet 1 28 and the magnet 2 29 are attracted to each other, which can prevent the box 1 from opening due to shaking during transportation, causing debris to enter the box 1 and affect the subsequent winding work.

[0024] like Figure 1 , Figure 3 , Figure 6 As shown, three clamping blocks 30 are fixedly connected to one side of the outer wall of the box body 1 close to the transducer 8. The clamping blocks 30 have elastic deformation capability and can fix the transducer 8 to prevent the transducer 8 from colliding with the box body 1 and being damaged.

[0025] Working principle: When using this device, first place the placement plate 21 in a suitable position, then place the box 1 on the placement plate 21, then screw each threaded rod 22 into its corresponding threaded groove 20, and finally rotate the threaded rod 3 25 at a lower position according to the height of the ground position to keep the box 1 parallel to the ground, then start the electric slide rail 17 to drive the two sliders 18 to move on the electric slide rail 17, thereby driving the positioning ring 19 to move, and when the positioning ring 19 moves, it will drive the winding drum 6 to move and rotate on the threaded rod 1 5, so that a part of the transmission line 7 is detached from the winding drum 6. After releasing a certain length of the transmission line 7, first manually put the transducer 8 into the acoustic detection tube installed with the orifice pulley, and then according to the acoustic detection tube The length starts the electric slide 17 to drive the other part of the transmission line 7 to detach from the winding drum 6. At this time, the motor 13 is turned on to drive the rubber roller 14 to rotate and bring the transmission line 7 out of the box 1, so that the transducer 8 is in the specified position in the acoustic testing tube. When testing the data, the electric slide 17 is started to reset the slider 18 to reel in the transmission line 7. When reeling in the transmission line 7, the cover plate 2 4 is manually rotated, and then the stacked limit blocks 11 are manually blocked to prevent the stacked limit blocks 11 from following the transmission line 7 to be wound onto the winding drum 6, and then each time the winding drum 6 is wound around one circle, a limit block 11 is manually released, and the cover plate 2 4 can be closed after releasing the last limit block 11. At this time, the transducer 8 will move upward evenly in the acoustic testing tube to complete the detection.

[0026] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A pile foundation ultrasonic transmission method detection device, comprising a box (1) and an ultrasonic detector (2) fixedly connected to the box (1), characterized in that: The box body (1) is detachably connected to a cover plate 1 (3), and the cover plate 1 (3) is rotatably connected to a cover plate 2 (4). The box body (1) is fixedly connected to a threaded rod 1 (5), and a winding drum (6) is threadedly connected to the threaded rod 1 (5). The ultrasonic detector (2) is provided with a transmission component for transmitting a signal to the ultrasonic detector (2), and the box body (1) is provided with a driving component for driving the winding drum (6) to move.

2. The ultrasonic transmission method detection device for pile foundation according to claim 1, characterized in that: The transmission assembly comprises three transmission lines (7) fixedly connected to the ultrasonic detector (2), transducers (8) fixedly connected to the other ends of the transmission lines (7), and protective sleeves (9) fixedly connected to the three transmission lines (7), one end of the protective sleeve (9) away from the ultrasonic detector (2) being fixedly connected to the winding drum (6), the middle section of the protective sleeve (9) being arranged in a spiral, the three transmission lines (7) being wound on the winding drum (6), and a through hole (10) for the transducer (8) to pass through being opened on the box body (1).

3. The ultrasonic transmission method detection device for pile foundation according to claim 2, characterized in that: A plurality of limit blocks (11) are slidably connected to the three transmission lines (7); two separation rods (12) are fixedly connected to the side of the box body (1) close to the through hole (10); the two separation rods (12) are respectively located between two adjacent transmission lines (7); a motor (13) is fixedly connected to the side of the inner wall of the box body (1) close to the through hole (10); a rubber roller 1 (14) is fixedly connected to the motor (13); two spring telescopic rods (15) are fixedly connected to the side of the inner wall of the box body (1) close to the through hole (10); a rubber roller 2 (16) is rotatably connected between the two spring telescopic rods (15); the rubber roller 1 (14) and the rubber roller 2 (16) are located at the upper and lower sides of the three transmission lines (7) and are in contact with the three transmission lines (7).

4. The ultrasonic transmission method detection device for pile foundation according to claim 1, characterized in that: The driving assembly comprises an electric slide rail (17) fixedly connected inside the housing (1), two sliding blocks (18) slidably connected to the electric slide rail (17), and a positioning ring (19) fixedly connected to the sliding block (18); the positioning ring (19) is rotationally connected to the winding drum (6).

5. The ultrasonic transmission method detection device for pile foundation according to claim 1, characterized in that: The bottom side of the box body (1) is detachably connected to a placement plate (21), a plurality of threaded rods (22) are threadedly connected to the placement plate (21), a plurality of internal thread grooves (20) adapted to the threaded rods (22) are provided on the bottom side of the box body (1), limiting plates (23) are fixedly connected to both sides of the placement plate (21), a positioning plate (24) is fixedly connected between the two limiting plates (23), a plurality of threaded rods (25) are threadedly connected to the positioning plate (24), and a base (26) is fixedly connected to the side of the threaded rods (25) away from the box body (1).

6. The ultrasonic transmission method detection device for pile foundation according to claim 5, characterized in that: A multi-stage electric push rod (27) is fixedly connected to the positioning plate (24), and an output end of the multi-stage electric push rod (27) is fixedly connected to the placement plate (21). A magnet 1 (28) is fixedly connected to the second cover plate (4), and a magnet 2 (29) is fixedly connected to the upper side of the box body (1), and the magnet 1 (28) and the magnet 2 (29) are attracted to each other.

7. The ultrasonic transmission method detection device for pile foundation according to claim 2, characterized in that: Three clamping blocks (30) are fixedly connected to a side of the outer wall of the box body (1) close to the transducer (8), and the clamping blocks (30) have elastic deformation capability.

Images