Pile foundation quality detection device

Abstract

The utility model relates to the field of pile foundation detection, in particular to a pile foundation quality detection device which comprises a winding frame, a winding roller, a driving motor and a guide block, the winding roller is rotationally matched with the winding frame and arranged in the horizontal direction, a detection cable is wound around the winding roller, a detection probe is installed at the tail end of the detection cable, and the detection probe is connected with the driving motor. The type of the detection probe is a transmitting probe or a receiving probe, and the driving motor is used for driving the winding roller to rotate; the guide block is provided with a guide hole in a penetrating mode, the cable penetrates through the guide hole in a sliding mode, the winding frame is provided with a reciprocating driving assembly, and the reciprocating driving assembly is used for driving the guide block to reciprocate in the horizontal direction. The device has the effect that the cable can be taken up and paid off more conveniently when a detector measures the forming quality of the pile foundation through a sound wave penetration measurement method.

Description

Technical Field

[0001] The present application relates to the field of pile foundation detection, and in particular to a pile foundation quality detection device. Background Art

[0002] After the pile foundation is constructed, it is necessary to conduct an integrity test on the pile foundation to determine the crack development of the pile foundation and other forming quality test indicators such as concrete homogeneity.

[0003] In the existing related technologies, the forming quality of pile foundation is generally tested by the sonic penetration method. Specifically, the sonic penetration method mainly embeds two rigid sonic detection tubes extending to both ends of the pile foundation in the pile foundation, and then injects clean water into the sonic detection tubes before officially starting the test. After the sonic detection tubes are filled with clean water, the transmitting probe and the receiving probe are respectively placed in the two sonic detection tubes. Then, the test personnel gradually lower the transmitting probe and the receiving probe to the bottom of the sonic detection tube through the cable connected to the transmitting probe and the cable connected to the receiving probe, so as to know the forming quality of the pile foundation through the physical parameters of the sound waves.

[0004] Regarding the above-mentioned related technologies, for high-rise buildings, the pile foundation length is generally long, and the required cable length is correspondingly long. This means that when measuring the pile foundation forming quality by the sonic penetration method, the inspection personnel need to frequently retract and release the long cable, which is inconvenient. Summary of the invention

[0005] In order to facilitate inspectors to more conveniently retract and release cables when measuring the pile foundation molding quality through the ultrasonic penetration test method, the present application provides a pile foundation quality inspection device.

[0006] The pile foundation quality detection device provided in this application adopts the following technical solution:

[0007] A pile foundation quality detection device comprises a winding frame, a winding roller, a driving motor and a guide block, wherein the winding roller is rotatably matched with the winding frame, and the winding roller is arranged in a horizontal direction, and a detection cable is wound around the winding roller, and a detection probe is installed at the end of the detection cable, and the type of the detection probe is a transmitting probe or a receiving probe, and the driving motor is used to drive the winding roller to rotate;

[0008] The guide block is penetrated by a guide hole, the cable is slidably passed through the guide hole, and the winding frame is provided with a reciprocating drive component, and the reciprocating drive component is used to drive the guide block to reciprocate in the horizontal direction.

[0009] By adopting the above technical solution, when lowering the transmitting probe or the receiving probe, the inspector places the transmitting probe or the receiving probe into the acoustic detection tube, and then the driving motor drives the winding roller to rotate, so that the transmitting probe or the receiving probe is placed at the bottom of the acoustic detection tube at the speed required for the detection. On the one hand, this is not only conducive to ensuring the uniformity of the lowering speed of the transmitting probe or the receiving probe, thereby improving the detection accuracy. On the other hand, this is also conducive to reducing the occurrence of the situation where the inspectors frequently retract and release the long cables, so that the inspectors can more conveniently retract and release the cables when measuring the quality of pile foundation molding by the acoustic wave penetration method.

[0010] In addition, during the recovery of the detection cable, the reciprocating drive assembly causes the guide block to reciprocate in the horizontal direction, so that the detection cable is evenly wound around the winding roller, reducing the occurrence of the detection cable being concentrated on one part of the winding roller.

[0011] Optionally, the winding roller is equipped with a winding baffle, the winding baffle is located at the end of the winding tube, and the diameter of the winding baffle is larger than the diameter of the winding roller.

[0012] By adopting the above technical solution, the winding baffle makes it difficult for the detection cable to be wound outside the winding roller when the detection cable is recovered, thereby reducing the occurrence of the detection cable slipping.

[0013] Optionally, an active synchronous wheel is installed at the output end of the driving motor, a driven synchronous wheel is installed at the winding roller, and a transmission synchronous belt is wound between the active synchronous wheel and the driven synchronous wheel.

[0014] By adopting the above technical solution, the driving motor rotates the winding roller through the transmission synchronous belt, so that the position of the driving motor can be adjusted according to the actual shape of the winding frame, thereby facilitating the occurrence of the driving motor protruding from the winding frame.

[0015] Optionally, the reciprocating drive assembly includes a mounting base, a driving screw and a reciprocating motor, the mounting base is mounted on the winding frame, the guide block slides and engages with the mounting base in the horizontal direction, the driving screw rotates and engages with the mounting base, and the driving screw is threaded through the guide block in the horizontal direction, and the reciprocating motor is used to rotate the driving screw in forward and reverse directions.

[0016] By adopting the above technical solution, the reciprocating motor causes the driving screw to rotate in both directions, driving the guide block to reciprocate in the horizontal direction, thereby facilitating the adjustment of the movement speed of the guide block, reducing the excessive movement speed of the guide block, and allowing the detection cable to be wound from one end of the winding roller to the other end of the winding roller, thereby facilitating the uniform winding of the detection cable.

[0017] Optionally, the mounting base is provided with a mounting cavity and a cable outlet, the guide block, the drive screw and the reciprocating motor are all located in the mounting cavity, the cable outlet is connected to the mounting cavity, the mounting base is provided with a dust cover, the dust cover is provided in the mounting cavity, the dust cover is provided with a cable inlet, and the cable inlet is connected to the mounting cavity.

[0018] By adopting the above technical solution, the dust cover makes it difficult for the dust at the construction site to stick to the guide block, the drive screw and the reciprocating motor, thereby reducing the occurrence of damage to the guide block, the drive screw or the reciprocating motor by dust, which is beneficial to ensure the service life of the guide block, the drive screw and the reciprocating motor.

[0019] Optionally, the output shaft of the reciprocating motor is arranged in the vertical direction, a driving gear is coaxially mounted on the output shaft of the reciprocating motor, a driven gear is coaxially mounted on the driving screw, and the driven gear is meshed with the driving gear.

[0020] By adopting the above technical solution, the reciprocating motor drives the screw to rotate through the driving gear and the driven gear, which is beneficial to reducing the size of the installation base, thereby making it easier for inspection personnel to transfer the pile foundation quality inspection device.

[0021] Optionally, a guide ball is provided in the guide hole, and the guide ball rolls and fits with the inner wall of the guide hole.

[0022] By adopting the above technical solution, the guide ball reduces the friction between the detection cable and the inner wall of the guide hole, thereby preventing the detection cable from being worn by the inner wall of the guide hole when the guide block moves in the horizontal direction.

[0023] Optionally, a flexible protective cover is installed at the end of the detection cable, and the detection probe is located in the area covered by the flexible protective cover.

[0024] By adopting the above technical solution, during the recovery of the detection cable, the flexible protective cover makes it difficult for the transmitting probe or the receiving probe to directly collide with the rigid acoustic detection tube under the action of the horizontally moving detection cable, thereby reducing the occurrence of collision damage to the transmitting probe or the receiving probe. In addition, after the transmitting probe or the receiving probe is recovered, the flexible protective cover can be folded to conveniently expose the transmitting probe or the receiving probe, thereby facilitating the detection personnel to repair and maintain the transmitting probe or the receiving probe.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. When lowering the transmitting probe or receiving probe, the inspector places the transmitting probe or receiving probe into the acoustic testing tube, and then the driving motor drives the winding roller to rotate, so that the transmitting probe or receiving probe is placed at the bottom of the acoustic testing tube at the speed required for the test. On the one hand, this is not only conducive to ensuring the uniformity of the lowering speed of the transmitting probe or receiving probe, thereby improving the detection accuracy. On the other hand, this is also conducive to reducing the occurrence of the situation where the inspectors frequently retract and release the long cables, so that the inspectors can more conveniently retract and release the cables when measuring the quality of pile foundation molding by the acoustic wave penetration test method.

[0027] In addition, during the recovery of the detection cable, the reciprocating drive assembly causes the guide block to reciprocate in the horizontal direction, so that the detection cable is evenly wound around the winding roller, reducing the occurrence of the detection cable being concentrated on one part of the winding roller.

[0028] 2. The reciprocating motor rotates the driving screw in forward and reverse directions, driving the guide block to reciprocate in the horizontal direction, thereby facilitating the adjustment of the movement speed of the guide block and reducing the excessive movement speed of the guide block, so that the detection cable is wound from one end of the winding roller to the other end of the winding roller, thereby ensuring the uniform winding of the detection cable.

[0029] 3. The guide ball reduces the friction between the detection cable and the inner wall of the guide hole, thereby making it less likely for the detection cable to be worn by the inner wall of the guide hole when the guide block moves in the horizontal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is the first overall schematic diagram of the overall structure of the embodiment of the present application.

[0031] Figure 2 It is a cross-sectional schematic diagram of the detection probe and the flexible protective cover according to the embodiment of the present application.

[0032] Figure 3 It is a second overall schematic diagram of the overall structure of the embodiment of the present application.

[0033] Figure 4 It is an exploded schematic diagram of the reciprocating drive assembly of an embodiment of the present application.

[0034] Figure 5 It is a cross-sectional schematic diagram of the guide block of the embodiment of the present application.

[0035] Explanation of the accompanying drawings: 1. Winding frame; 2. Winding roller; 21. Detection cable; 22. Detection probe; 23. Flexible protective cover; 231. Detection through hole; 24. Winding baffle; 25. Driven synchronous wheel; 3. Driving motor; 31. Active synchronous wheel; 4. Guide block; 401. Guide hole; 41. Guide ball; 5. Reciprocating drive assembly; 51. Mounting base; 511. Mounting cavity; 512. Cable outlet; 52. Driving screw; 521. Driven gear; 53. Reciprocating motor; 531. Active gear; 54. Dust cover; 541. Cable inlet. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] The present application embodiment discloses a pile foundation quality detection device. Figure 1 The pile foundation quality detection device includes a winding frame 1, a winding roller 2, a driving motor 3 and a guide block 4.

[0038] Reference Figure 1 and Figure 2 , the winding roller 2 rotates and cooperates with the winding frame 1, and the winding roller 2 is arranged in the horizontal direction. The winding roller 2 is wound with a detection cable 21, and a detection probe 22 is installed at the end of the detection cable 21, so that the detection probe 22 can be retracted into the acoustic detection tube by rotating the winding roller 2. Specifically, the type of the detection probe 22 is a transmitting probe or a receiving probe. In addition, a flexible protective cover 23 is fixedly installed at the end of the detection cable 21, and in the embodiment of the present application, the material of the flexible protective cover 23 is rubber. The detection probe 22 is located in the area covered by the flexible protective cover 23, so that the detection probe 22 is not easily damaged by collision with the acoustic detection tube, and it is convenient to flip up the flexible protective cover 23 to expose the detection probe 22 when the detection probe 22 needs to be maintained. The detection probe 22 is penetrated by a plurality of detection through holes 231, so that the flexible protective cover 23 is not easy to interfere with the detection probe 22 to emit or receive sound waves.

[0039] Reference Figure 3 The winding roller 2 is provided with two winding baffles 24, which are respectively located at the two ends of the winding roller 2. The winding baffles 24 are circularly arranged and fixedly mounted on the winding roller 2, and the diameter of the winding baffles 24 is larger than the diameter of the winding roller 2, so that the detection cable 21 wound on the winding roller 2 is not easy to slip off the winding roller 2.

[0040] Reference Figure 3In the embodiment of the present application, the type of the driving motor 3 is a servo motor, so that the rotation speed of the driving motor 3 can be adjusted through the PLC program, so that the transmitting probe can be lowered to the bottom of the acoustic detection tube at the speed required for the detection. The driving motor 3 is located at the bottom of the winding roller 2, and the driving motor 3 is fixedly installed on the winding frame 1, and the output shaft of the driving motor 3 is arranged in the horizontal direction. The output shaft of the driving motor 3 is coaxially fixedly installed with an active synchronous wheel 31, and the winding roller 2 is coaxially fixedly installed with a driven synchronous wheel 25. A transmission synchronous belt is wound between the active synchronous wheel 31 and the driven synchronous wheel 25, so that the winding roller 2 can be driven to rotate by the driving motor 3.

[0041] Reference Figure 1 and Figure 4 The winding frame 1 is provided with a reciprocating drive assembly 5, which is located on one side of the winding roller 2. The reciprocating drive assembly 5 includes a mounting base 51, a driving screw 52, ​​and a reciprocating motor 53. The mounting base 51 is fixedly mounted on the winding frame 1, and the mounting base 51 is provided with a mounting cavity 511, and the guide block 4, the driving screw 52, ​​and the reciprocating motor 53 are all located in the mounting cavity 511. The mounting base 51 is fixedly mounted with a dust cover 54, and the dust cover 54 is covered in the mounting cavity 511, so that the dust at the construction site is not easy to affect the service life of the guide block 4, the driving screw 52, ​​and the reciprocating motor 53.

[0042] Reference Figure 4 Both ends of the driving screw 52 are rotatably matched with the mounting base 51, and the driving screw 52 is threadedly penetrated into the guide block 4 along the horizontal direction, and the guide block 4 is slidably matched with the mounting base 51 along the horizontal direction through the guide rod, so that the guide block 4 can reciprocate in the horizontal direction through the forward and reverse rotation of the driving screw 52.

[0043] Reference Figure 4 In the embodiment of the present application, the type of the reciprocating motor 53 is a servo motor, so that the speed and direction of rotation of the reciprocating motor 53 can be adjusted through the PLC program, and the structure of the forward and reverse rotation of the driving screw 52 is simplified, so that the reciprocating drive assembly 5 is not complicated and bloated. The output shaft of the reciprocating motor 53 is arranged in the vertical direction, and the output shaft of the reciprocating motor 53 is coaxially fixedly installed with a driving gear 531, and the driving screw 52 is coaxially fixedly installed with a driven gear 521. In the embodiment of the present application, the type of the driving gear 531 and the driven gear 521 is bevel gears. The driving gear 531 is meshed with the driven gear 521, so that the driving screw 52 is rotated forward and reversely by the reciprocating motor 53.

[0044] Reference Figure 5The dust cover 54 is penetrated by a cable inlet 541, which is connected to the installation cavity 511, and the detection cable 21 is slidably arranged in the cable inlet 541. The cable inlet 541 extends in the horizontal direction, and the length of the cable inlet 541 is greater than the length of the winding roller 2. The cross section of the cable inlet 541 is horn-shaped, and the notch with a large width of the cable inlet 541 is arranged away from the installation cavity 511, so that the detection cable 21 is not easily worn due to collision with the inner wall of the cable inlet 541.

[0045] Reference Figure 5 , a guide hole 401 is formed through the guide block 4, and the detection cable 21 is slidably inserted into the guide hole 401. The two notches of the guide hole 401 are both arranged in a trumpet shape, and the ends of the two notches of the guide hole 401 with smaller inner diameters are arranged close to each other, so that the detection cable 21 is not easily worn by the inner wall of the guide hole 401. In addition, a plurality of guide balls 41 are arranged in the guide hole 401, and the plurality of guide balls 41 are evenly distributed around the axis of the guide hole 401. The guide balls 41 roll and fit with the inner wall of the guide hole 401, and the guide balls 41 fit closely with the detection cable 21, so as to further reduce the occurrence of the detection cable 21 being worn by the inner wall of the guide hole 401.

[0046] Reference Figure 5 The mounting base 51 is provided with a cable outlet 512, which is connected to the mounting cavity 511, and the detection cable 21 is slidably arranged in the cable outlet 512. The cable outlet 512 extends in the horizontal direction, and the length of the cable outlet 512 is greater than the length of the winding roller 2. The cross section of the cable outlet 512 is horn-shaped, and the slot with a large width of the cable inlet 541 is arranged away from the mounting cavity 511, so that the detection cable 21 is not easily worn due to collision with the inner wall of the cable outlet 512.

[0047] The implementation principle of a pile foundation quality detection device in an embodiment of the present application is as follows: start the drive motor 3 to rotate the winding roller 2, and then lower the detection probe 22, i.e., the transmitting probe or the receiving probe, to the bottom of the acoustic detection tube. After the detection probe 22 is lowered to the bottom of the acoustic detection tube and the pile foundation measurement is completed, the drive motor 3 rotates in the opposite direction, so that the detection probe 22 rises from the acoustic detection tube. During the rising process of the detection probe 22, the reciprocating motor 53 drives the guide block 4 to move horizontally from one end of the winding roller 2 to the other end of the winding roller 2, so that the detection cable 21 is evenly wound around the winding roller 2, so that it is convenient for the detection personnel to retract and release the cable more conveniently when measuring the pile foundation forming quality by the acoustic wave penetration method. In addition, during the horizontal movement of the guide block 4, the flexible protective cover 23 makes it difficult for the detection probe 22 to directly hit the acoustic detection tube, thereby reducing the occurrence of damage to the detection probe 22.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pile foundation quality detection device, characterized in that: The invention comprises a winding frame (1), a winding roller (2), a driving motor (3) and a guide block (4); the winding roller (2) is rotatably matched with the winding frame (1), and the winding roller (2) is arranged in a horizontal direction, and a detection cable (21) is wound around the winding roller (2); a detection probe (22) is installed at the end of the detection cable (21), and the detection probe (22) is a transmitting probe or a receiving probe; the driving motor (3) is used to drive the winding roller (2) to rotate; The guide block (4) is provided with a guide hole (401) extending therethrough, and the cable is slidably inserted through the guide hole (401). The winding frame (1) is provided with a reciprocating drive assembly (5), and the reciprocating drive assembly (5) is used to drive the guide block (4) to reciprocate in a horizontal direction.

2. A pile foundation quality detection device according to claim 1, characterized in that: The winding roller (2) is provided with a winding baffle (24), the winding baffle (24) is located at the end of the winding tube, and the diameter of the winding baffle (24) is greater than the diameter of the winding roller (2).

3. A pile foundation quality detection device according to claim 1, characterized in that: The output end of the driving motor (3) is provided with an active synchronous wheel (31), the winding roller (2) is provided with a driven synchronous wheel (25), and a transmission synchronous belt is wound between the active synchronous wheel (31) and the driven synchronous wheel (25).

4. A pile foundation quality detection device according to claim 1, characterized in that: The reciprocating drive assembly (5) comprises a mounting base (51), a driving screw (52) and a reciprocating motor (53); the mounting base (51) is mounted on the winding frame (1); the guide block (4) is slidably engaged with the mounting base (51) in a horizontal direction; the driving screw (52) is rotationally engaged with the mounting base (51); and the driving screw (52) is threadedly penetrated through the guide block (4) in a horizontal direction; and the reciprocating motor (53) is used to rotate the driving screw (52) in a forward and reverse direction.

5. A pile foundation quality detection device according to claim 4, characterized in that: The mounting base (51) is provided with a mounting cavity (511) and a cable outlet (512); the guide block (4), the driving screw rod (52) and the reciprocating motor (53) are all located in the mounting cavity (511); the cable outlet (512) is connected to the mounting cavity (511); the mounting base (51) is provided with a dust cover (54); the dust cover (54) is covered in the mounting cavity (511); the dust cover (54) is provided with a cable inlet (541); and the cable inlet (541) is connected to the mounting cavity (511).

6. A pile foundation quality detection device according to claim 4, characterized in that: The output shaft of the reciprocating motor (53) is arranged in a vertical direction, a driving gear (531) is coaxially mounted on the output shaft of the reciprocating motor (53), a driven gear (521) is coaxially mounted on the driving screw rod (52), and the driven gear (521) is meshed with the driving gear (531).

7. A pile foundation quality detection device according to claim 1, characterized in that: A guide ball (41) is provided in the guide hole (401), and the guide ball (41) is rollingly fitted on the inner wall of the guide hole (401).

8. A pile foundation quality detection device according to claim 1, characterized in that: A flexible protective cover (23) is installed at the end of the detection cable (21), and the detection probe (22) is located in the area covered by the flexible protective cover (23).

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