Pile foundation integrity detection device

Abstract

The utility model provides a pile foundation integrity detection device which comprises a circular support, a first sliding groove and a second sliding groove, a supporting frame is arranged on the circular support in a sliding mode, and second sliding grooves are symmetrically formed in the supporting frame. The detection unit is arranged in the second sliding groove in a sliding mode, the detection unit comprises a sliding block and a clamping frame arranged on the sliding block, and a sensor is arranged on the clamping frame; and the knocking unit is arranged on the supporting frame. According to the pile foundation integrity detection device provided by the utility model, the circular bracket is utilized, the circular bracket is encircled on the pile foundation, and the sensor is limited through the clamping frame, so that the sensor is always vertical to the pile foundation, and the stability of the sensor during detection is improved; and the knocking column is located on the supporting frame and slides back and forth in the axial direction to knock the pile foundation, and the detection efficiency and the data accuracy are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile foundation detection, in particular to a pile foundation integrity detection device. Background Art

[0002] A pile foundation consists of a cylindrical pile body erected or tilted in the soil and a bearing platform connected to the top of the pile body. The bearing platform, also known as a beam, is used to bear the weight of the building and various loads, and transfer the bearing force to the soil through the pile body. The pile body is a stone column composed of concrete and steel bars. To improve building quality, the integrity of the pile body is often tested using the low-strain reflection wave method to identify certain bearing defects that may affect the bearing of a single pile body and correct them. However, during the testing process, the low-strain detector is manually coated with colloid before being installed on the pile foundation. As a result, the low-strain detector cannot maintain a high degree of verticality. Moreover, when the pile foundation is hammered for testing, the low-strain detector will be affected by vibration and tilt, resulting in deviations in the test data, which in turn affects the bearing capacity of the pile column. Utility Model Content

[0003] The purpose of this utility model is to solve the above problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention can be implemented through the following technical solutions: A pile foundation integrity detection device, comprising:

[0005] A circular bracket, a support frame is slidably provided on the circular bracket, and a second sliding groove is symmetrically provided on the support frame;

[0006] a detection unit, the detection unit being slidably disposed in the second sliding groove, the detection unit comprising a slider and a card holder disposed on the slider, the card holder being provided with a sensor;

[0007] The knocking unit is arranged on the support frame, and the knocking unit includes a knocking column, a motor and a rotating column arranged at the output end of the motor. The knocking column is provided with a connecting rod that cooperates with the rotating column. The motor drives the rotating column to rotate to control the knocking column to slide back and forth up and down on the support frame.

[0008] In an embodiment of the present utility model, a rubber ring is clamped on the card holder, and the rubber ring cooperates with the sensor.

[0009] In an embodiment of the present utility model, a vertical groove and an arc-shaped groove are symmetrically provided on the rotating column, the vertical grooves are connected to each other, and the connecting rod slides along the vertical groove and the arc-shaped groove.

[0010] In an embodiment of the present invention, the knocking unit further includes a spring, a guide frame, and an adjusting rod threadedly connected to the guide frame. The knocking column slides along the guide frame, and the spring is arranged between the adjusting rod and the knocking column.

[0011] In an embodiment of the present utility model, the support frame includes a padding block and a support plate, the support plate cooperates with the padding block, and the padding block is provided with reinforcing ribs.

[0012] In an embodiment of the present invention, scale lines are provided on the support plate.

[0013] In an embodiment of the present utility model, the circular bracket includes a stabilizing member, a first arc-shaped block and a second arc-shaped block, and the first arc-shaped block and the second arc-shaped block are both rotatably connected to the stabilizing member.

[0014] In an embodiment of the present utility model, the stabilizing member includes a rotating seat, which cooperates with the first arc block and the second arc block. A screw is threadedly connected to the rotating seat, and a fitting block is provided at one end of the screw.

[0015] In an embodiment of the present invention, the fitting block is a rubber block, and an arc-shaped surface is provided on the fitting block.

[0016] In the embodiment of the present invention, a rubber head is clamped at one end of the knocking post.

[0017] Compared with the existing technology, the advantages of this application are: a circular bracket is utilized to embrace the pile foundation, and the sensor is restricted by the bracket so that the sensor is always perpendicular to the pile foundation, thereby improving the stability of the sensor during detection, and then the rotating column is driven by the motor to rotate, so that the knocking column is located on the support frame and slides back and forth axially to knock on the pile foundation, further improving the detection efficiency and data accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure;

[0019] Figure 2 It is a schematic diagram of the disassembled structure of some parts;

[0020] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0021] Figure 4 It is an overall plan view.

[0022] Description of reference numerals:

[0023] 1. Circular bracket; 11. First arc block; 12. First slide groove; 13. Second arc block; 2. Support frame; 21. Heightening block; 22. Support plate; 23. Scale line; 24. Second slide groove; 3. Stabilizing member; 31. Fitting block; 32. Rotating seat; 33. Screw; 4. Tapping unit; 40. Motor; 41. Adjusting rod; 42. Guide frame; 43. Spring; 44. Tapping column; 45. Connecting rod; 46. Rotating column; 461. Arc groove; 462. Vertical groove; 5. Detection unit; 51. Slider; 52. Card holder; 53. Sensor; 54. Rubber ring. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0025] like Figure 1-4 As shown, a pile foundation integrity detection device includes:

[0026] A circular bracket 1, a support frame 2 is slidably provided on the circular bracket 1, and a second sliding groove 24 is symmetrically provided on the support frame 2;

[0027] The detection unit 5 is slidably disposed in the second slide groove 24. The detection unit 5 includes a slider 51 and a bracket 52 disposed on the slider 51. The bracket 52 is provided with a sensor 53.

[0028] The knocking unit 4 is arranged on the support frame 2. The knocking unit 4 includes a knocking column 44, a motor 40 and a rotating column 46 arranged at the output end of the motor 40. The knocking column 44 is provided with a connecting rod 45 that cooperates with the rotating column 46. The motor 40 drives the rotating column 46 to rotate to control the knocking column 44 to slide back and forth up and down on the support frame 2.

[0029] Specifically, the circular bracket 1 is fixed on the pile foundation, and the support detection unit 5 and the knocking unit 4 are used to push the slider 51 to slide on the second slide groove 24 to control the distance between the sensor 53 and the knocking column 44. The motor 40 then controls the rotating column 46 located on the support plate 22 to rotate, and the knocking column 44 is located on the support plate 22 through the connecting rod 45 to slide back and forth axially up and down to knock on the pile foundation. The sensor 53 reads the value, and the distance between the sensor 53 and the knocking column 44 is adjusted multiple times for detection, and the value is recorded for comparison, thereby improving the detection efficiency and accuracy.

[0030] As an embodiment further provided by the present invention, a rubber ring 54 is clamped on the bracket 52, and the rubber ring 54 cooperates with the sensor 53. The rubber ring 54 improves the support effect of the sensor 53 and reduces the tilting phenomenon of the sensor 53. At the same time, the sensor 53 is specifically a strain sensor 53, which measures the strain generated by the deformation of the object under force.

[0031] As an embodiment further provided by the present invention, a vertical groove 462 and an arc groove 461 are symmetrically provided on the rotating column 46, and the vertical groove 462 and the vertical groove 462 are connected. The connecting rod 45 slides along the vertical groove 462 and the arc groove 461. When the rotating column 46 rotates, the connecting rod 45 will slide along the arc groove 461. At the same time, the knocking column 44 will be located on the guide frame 42, slide upward and squeeze the spring 43. When the connecting rod 45 slides to the end of the arc groove 461, the squeezed spring 43 will push the knocking column 44 to slide downward along the vertical groove 462 to knock the pile foundation.

[0032] As an embodiment further provided by the present invention, the knocking unit 4 also includes a spring 43, a guide frame 42 and an adjusting rod 41 threadedly connected to the guide frame 42. The knocking column 44 slides along the guide frame 42, and the spring 43 is arranged between the adjusting rod 41 and the knocking column 44. The adjusting rod 41 is threadedly connected to the guide frame 42. The adjusting rod 41 can be rotated to control the elastic pushing force of the spring 43 on the knocking column 44, so as to adjust the force of the knocking column 44 acting on the pile foundation according to different pile foundations.

[0033] As an embodiment further provided by the present invention, the support frame 2 includes a padding block 21 and a support plate 22. The support plate 22 cooperates with the padding block 21. The padding block 21 is provided with reinforcing ribs. The support plate 22 is engaged with the padding block 21. The support block can be removed so that the first arc block 11 and the second arc block 13 are located on the rotating seat 32 and rotate relative to each other to form a folded shape, thereby facilitating the carrying of the device.

[0034] As an embodiment further provided by the present invention, a scale line 23 is provided on the support plate 22. The scale line 23 can better control the relative position of the sensor 53 and the knocking column 44, record the values at different distances, and compare them to improve the accuracy of the values.

[0035] As an embodiment further provided by the present invention, the circular bracket 1 includes a stabilizing member 3, a first arc block 11 and a second arc block 13. The first arc block 11 and the second arc block 13 are both rotatably connected to the stabilizing member 3. The first arc block 11 and the second arc block 13 are both provided with a first slide groove 12, and the support frame 2 slides on the first slide groove 12 to adjust the orientation of the sensor 53.

[0036] As an embodiment further provided by the present invention, the stabilizing member 3 includes a rotating seat 32, which cooperates with the first arc block 11 and the second arc block 13. A screw 33 is threadedly connected to the rotating seat 32, and a fitting block 31 is provided at one end of the screw 33. The screw 33 is rotated to make the fitting block 31 fit the outer wall of the pile foundation. When clamping, the rotation distance of the screw 33 in the two stabilizing members 3 is relatively consistent, so that the knocking column 44 maintains appropriate coaxiality with the central axis of the pile foundation, thereby improving the accuracy of the detection data. At the same time, the gap between the first arc block 11 and the second arc block 13 and the pile foundation can be filled with a support block to improve the stability of the circular bracket 1.

[0037] As an embodiment further provided by the present invention, the fitting block 31 is a rubber block, and an arc-shaped surface is provided on the fitting block 31. When the circular bracket 1 is fixed to the pile foundation, the fitting block 31 improves the supporting effect of the circular bracket 1, and the arc-shaped surface improves the fit between the fitting block 31 and the pile foundation.

[0038] As an embodiment further provided by the present invention, a rubber head is clamped at one end of the knocking column 44 , which improves the knocking effect of the knocking column 44 and protects the knocking surface of the knocking column 44 .

[0039] Working principle: First, the circular bracket 1 is encircled on the pile foundation, and the screw 33 is rotated to push the fitting block 31 to fit the outer wall of the pile foundation, so that the slider 51 can be pushed to slide on the second slide groove 24, and the distance between the sensor 53 and the knocking column 44 is adjusted. Then the sensor 53 coated with colloid is passed through the rubber ring 54 to contact the upper surface of the pile foundation, so as to improve the verticality of the sensor 53 and the pile foundation. The motor 40 model is: MHMF042L1U4-1116. The motor 40 controls the rotation of the rotating column 46 to control the knocking column 44 to slide back and forth along the guide frame 42 and knock on the upper surface of the pile foundation. The propagation time, speed and amplitude of the knocking signal in the pile foundation are measured by the sensor 53, so as to judge the integrity and bearing capacity of the pile foundation.

[0040] The technical solution of the above-mentioned utility model provides a solution that is significantly different from the existing technology to address the technical problem that the existing technology solution is too single. The parts not involved in the technical solution of this application are the same as the existing technology or can be implemented by using the existing technology, and will not be repeated here.

[0041] The technical solutions in the above embodiments have clearly and completely described the contents of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

Claims

1. A pile foundation integrity detection device, characterized in that: include: A circular bracket, a support frame is slidably provided on the circular bracket, and a second sliding groove is symmetrically provided on the support frame; a detection unit, the detection unit being slidably disposed in the second sliding groove, the detection unit comprising a slider and a card holder disposed on the slider, the card holder being provided with a sensor; The knocking unit is arranged on the support frame, and the knocking unit includes a knocking column, a motor and a rotating column arranged at the output end of the motor. The knocking column is provided with a connecting rod that cooperates with the rotating column. The motor drives the rotating column to rotate to control the knocking column to slide back and forth up and down on the support frame.

2. A pile foundation integrity detection device according to claim 1, characterized in that: A rubber ring is clamped on the card frame, and the rubber ring is matched with the sensor.

3. A pile foundation integrity detection device according to claim 1, characterized in that: The rotating column is symmetrically provided with a vertical groove and an arc-shaped groove, the vertical grooves are connected to each other, and the connecting rod slides along the vertical groove and the arc-shaped groove.

4. A pile foundation integrity detection device according to claim 1, characterized in that: The knocking unit further includes a spring, a guide frame, and an adjusting rod threadedly connected to the guide frame. The knocking column slides along the guide frame, and the spring is arranged between the adjusting rod and the knocking column.

5. The pile foundation integrity detection device according to claim 1, characterized in that: The support frame includes a padding block and a support plate. The support plate cooperates with the padding block, and the padding block is provided with reinforcing ribs.

6. A pile foundation integrity detection device according to claim 5, characterized in that: The support plate is provided with scale lines.

7. The pile foundation integrity detection device according to claim 1, characterized in that: The circular bracket includes a stabilizing member, a first arc-shaped block and a second arc-shaped block, wherein the first arc-shaped block and the second arc-shaped block are both rotatably connected to the stabilizing member.

8. A pile foundation integrity detection device according to claim 7, characterized in that: The stabilizing member includes a rotating seat, which cooperates with the first arc block and the second arc block. A screw is threadedly connected to the rotating seat, and a fitting block is provided at one end of the screw.

9. A pile foundation integrity detection device according to claim 8, characterized in that: The fitting block is a rubber block, and a curved surface is provided on the fitting block.

10. The pile foundation integrity detection device according to claim 1, characterized in that: One end of the knocking column is clamped with a rubber head.

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