Device for detecting perpendicularity and aperture of pile foundation

Abstract

The invention relates to a pile foundation perpendicularity and aperture detection device applied to the technical field of pile foundation detection, which comprises a fixed frame, a displacement mechanism, a detection mechanism and an intelligent detector, and is characterized in that the displacement mechanism comprises a longitudinal sliding seat longitudinally sliding along the fixed frame and a transverse sliding seat transversely moving along the longitudinal sliding seat; the detection mechanism comprises a base vertically moving at the bottom of the transverse sliding seat, a rotating seat rotationally connected with the bottom of the base and a distance sensor mounted at the bottom of the rotating seat, and a mounting seat on the distance sensor rotates around the diameter of the rotating seat through a rotating shaft; by the adoption of the structure, corresponding distance data are obtained by controlling the orientations of the distance sensor at different heights, the rotating base is moved to the center position of a pile hole in cooperation with the displacement mechanism, and therefore the pile hole can be accurately positioned. And in the process, a trace pen is used for measuring a trace left on the rubbing plate, so that the perpendicularity and the aperture of the pile foundation can be quickly obtained.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to a detection device for pile foundation verticality and hole diameter applied in the technical field of pile foundation detection. Background Art

[0002] Bored piles are a common foundation engineering structure, widely used in engineering projects such as bridges, buildings, ports, etc. In order to ensure the stability of the building structure, the horizontality of the building, the safety of the building, and reduce maintenance costs, it is necessary to test the verticality and diameter of the pile hole of the pile foundation.

[0003] The utility model patent with application number CN202122152717.6 discloses a pile foundation hole detection device for cast-in-place piles, comprising a measuring wire rope for measuring the hole depth of the pile foundation hole, a counterweight hammer arranged on the measuring wire rope and used as a sinking weight block, a sediment measuring instrument arranged on the counterweight hammer and used to measure the thickness of the pile bottom sediment of the pile foundation hole, and a three-point displacement measuring device arranged on the counterweight hammer and used to measure the hole diameter and verticality of the pile foundation hole; it realizes the measurement of the hole depth of the pile foundation hole through the measuring wire rope and the counterweight hammer through the sinking movement, and realizes the measurement of the hole diameter and verticality of the pile foundation hole through the three-point displacement measuring device.

[0004] When the above technical method is implemented, the measurement method is relatively cumbersome and requires contact with the inner wall of the pile hole, which may damage the hole wall. The detection result is not intuitive enough and multiple calculations are required to obtain the corresponding verticality and hole diameter data, which makes the detection efficiency low. Therefore, the hole diameter and verticality of the pile foundation hole cannot be measured quickly and effectively. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing method may damage the hole wall, the detection result is not intuitive enough, and multiple calculations are required to obtain the corresponding verticality and hole diameter data, which makes the detection efficiency low. Therefore, it is impossible to quickly and effectively measure the hole diameter and verticality of the pile foundation hole.

[0006] In order to solve the above problems, the present invention provides a pile foundation verticality and hole diameter detection device, which comprises: A fixing frame is installed on the top outer ring of the pile hole; The displacement mechanism includes a longitudinal slide that slides longitudinally along the fixed frame, and a transverse slide that moves transversely along the longitudinal slide. The fixed frame is provided with a longitudinal movement component for controlling the longitudinal movement of the longitudinal slide. The longitudinal slide is provided with a transverse movement component for controlling the transverse movement of the transverse slide. A trace pen is provided on the top of the transverse slide. A rubbing plate is provided above the trace pen and abuts against the top of the trace pen. The rubbing plate is connected to the fixed frame. The detection mechanism includes a base that moves vertically at the bottom of the horizontal slide, a rotating base that is rotatably connected to the bottom of the base, and a distance sensor installed at the bottom of the rotating base. The mounting base on the distance sensor rotates around the diameter of the rotating base through a rotating shaft. A circumferential driving member whose output shaft is connected to the rotating base is installed on the base. A deflection driving member is installed on the rotating base. The output shaft of the deflection driving member is linked to the mounting base of the distance sensor through a gear set. Intelligent detector, the intelligent detector is installed on the longitudinal slide, and is provided with a detection module, a displacement module and a reversing module. The detection module is electrically connected to the displacement module, the reversing module and the distance sensor respectively, the displacement module is electrically connected to the transverse movement component and the longitudinal movement component respectively, and the reversing module is electrically connected to the circumferential drive component and the deflection drive component respectively.

[0007] In the above-mentioned detection device for the verticality and hole diameter of the pile foundation, the orientation of the distance sensor at different heights is controlled and the corresponding distance data is obtained, and the rotating seat is moved to the center of the pile hole in cooperation with the displacement mechanism. In this process, the traces left by the trace pen on the rubbing plate are used for measurement, so as to quickly obtain the verticality and hole diameter of the pile foundation.

[0008] As a further improvement of the present application, the longitudinal movement assembly includes a longitudinal driving member installed on a fixed frame, a longitudinal screw installed on the output shaft of the longitudinal driving member, and the longitudinal screw is threadedly connected to the longitudinal slide. The transverse movement assembly includes a transverse driving member installed on the longitudinal slide, a transverse screw installed on the output shaft of the transverse driving member, and the transverse screw is threadedly connected to the transverse slide. The displacement module is electrically connected to the longitudinal driving member and the transverse driving member, respectively.

[0009] As a further improvement of the present application, the trace pen is plugged into the top of the transverse slide, and an elastic member is installed at the bottom of the trace pen, and the bottom surface of the rubbing plate is covered with rubbing paper.

[0010] As a further improvement of the present application, a pulling rope is inserted into the transverse slide, the bottom end of the pulling rope is installed with the base, and at least two pulling ropes are provided.

[0011] As another improvement of the present application, the detection device also includes a positioning mechanism, which includes two blocks installed on the base and a limit block arranged between the two blocks, the limit block is installed on the rotating seat, and the two blocks are used to limit the deflection angle of the limit block, and the deflection angle range is 0°-90°.

[0012] As another improved supplement of the present application, a groove matching the mounting seat of the distance sensor is provided at the bottom of the rotating seat along its radial direction to limit the swing angle of the distance sensor, and the swing angle range is 0°-180°.

[0013] As another improvement of the present application, a gear ring 1 is installed at the output shaft of the deflection driving member, and the gear ring 1 is meshedly connected with a gear ring 2 installed on a mounting seat of the distance sensor.

[0014] As a further improvement of the present application, both ends of the longitudinal slide are slidably connected to the fixing frame through sliders, and balancing pads are installed at the four bottom corners of the fixing frame.

[0015] In summary, by controlling the orientation of the distance sensor at different heights, controlling it to face the bottom to obtain height data, and measuring in the horizontal or vertical direction to obtain the corresponding distance data, the rotating seat is moved to the center of the pile hole in conjunction with the displacement mechanism, and the above measurement operation is repeated at different heights to obtain the data of the center position of the pile hole at different heights. In this process, the traces left by the trace pen on the rubbing plate are used to form point one and point two. The distance data between point one and point two and the distance difference data between H and h are used to calculate the verticality data of the pile hole using the tangent function formula. The verticality data of the pile hole is obtained through simple calculations, and the diameter of the pile hole is obtained, which is convenient for on-site personnel to perform rapid measurement and rapid calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the position of the detection device on the pile hole according to the first and second embodiments of the present application; Figure 2 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application; Figure 3 This is a schematic diagram of the overall structure of the first and second embodiments of the present application from another perspective; Figure 4 Schematic diagram of the positions of the longitudinal slide and the transverse slide of the first and second embodiments of the present application; Figure 5 This is a control principle diagram of the intelligent detector according to the first embodiment of the present application; Figure 6 This is a schematic diagram of the structure of the rotating seat of the first and second embodiments of the present application; Figure 7 Schematic diagram of the positions of the deflection drive member and the distance sensor of the first and second embodiments of the present application; Figure 8 A schematic diagram of the position of the distance sensor of the first and second embodiments of the present application when facing one side; Fig. 9 For the first and second embodiments of this application Figure 8 Schematic diagram of the position of the mid-range sensor after swinging 180°; Fig.10 For the first and second embodiments of this application Figure 8Schematic diagram of the position of the mid-range sensor after rotating 90°.

[0017] Description of the numbers in the figure: 1. Pile hole; 2. Intelligent detector; 3. Fixed frame; 4. Longitudinal drive member; 5. Longitudinal slide; 6. Longitudinal screw; 7. Transverse slide; 8. Transverse drive member; 9. Transverse screw; 10. Base; 11. Rotating seat; 12. Distance sensor; 13. Rubbing board; 14. Trace pen; 15. Block; 16. Limit block; 17. Circumferential drive member; 18. Deflection drive member; 19. Gear ring 1; 20. Gear ring 2; 21. Pulling rope. DETAILED DESCRIPTION

[0018] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-Figure 7 A detection device for the verticality and aperture of a pile foundation is shown, which includes a fixed frame 3, a displacement mechanism, a detection mechanism and an intelligent detector 2; the fixed frame 3 is installed on the top outer ring of the pile hole 1; the displacement mechanism includes a longitudinal slide 5 that slides longitudinally along the fixed frame 3 and a transverse slide 7 that moves transversely along the longitudinal slide 5; a longitudinal movement component for controlling the longitudinal movement of the longitudinal slide 5 is installed on the fixed frame 3, and a transverse movement component for controlling the transverse movement of the transverse slide 7 is installed on the longitudinal slide 5; a trace pen 14 is installed on the top of the transverse slide 7, and a rubbing plate 13 is provided above the trace pen 14 at abutment with the top thereof, and the rubbing plate 13 is connected to the fixed frame 3. By controlling the longitudinal movement of the longitudinal slide 5 and the transverse movement of the transverse slide 7, the position of the transverse slide 7 in the pile hole 1 is adjusted, so that the transverse slide 7 can be adjusted to the center position of the pile hole 1, so as to quickly obtain the verticality and aperture of the pile foundation.

[0020] It is worth mentioning that the detection mechanism includes a base 10 that moves vertically at the bottom of the horizontal slide 7, a rotating base 11 that is rotatably connected to the bottom of the base 10, and a distance sensor 12 installed at the bottom of the rotating base 11. The mounting base on the distance sensor 12 rotates around the diameter of the rotating base 11 through a rotating shaft. A circumferential driving member 17 whose output shaft is connected to the rotating base 11 is installed on the base 10, and a deflection driving member 18 is installed on the rotating base 11. The output shaft of the deflection driving member 18 is linked to the mounting base of the distance sensor 12 through a gear set, and the deflection driving member 18 is controlled by the deflection driving member 18. The distance sensor 12 swings, thereby controlling the distance sensor 12 to be vertically directed toward the bottom or toward the horizontal direction on both sides, thereby measuring the distance between the distance sensor 12 and the bottom and side wall of the pile hole 1, and controlling the rotation of the rotating seat 11 through the circumferential driving member 17, thereby controlling the distance sensor 12 to be deflected to a position perpendicular to this direction after being directed toward one side, and further measuring the distance from this point to the inner wall of the pile hole 1, so as to facilitate moving the rotating seat 11 and the distance sensor 12 to the center point of the pile hole 1 according to the distance data, so as to facilitate the rapid acquisition of the verticality and hole diameter of the pile foundation.

[0021] In addition, the intelligent detector 2 is installed on the longitudinal slide 5, and a detection module, a displacement module and a reversing module are arranged on the intelligent detector 2. The detection module is electrically connected to the displacement module, the reversing module and the distance sensor 12 respectively, the displacement module is electrically connected to the transverse movement component and the longitudinal movement component respectively, and the reversing module is electrically connected to the circumferential driving member 17 and the deflection driving member 18 respectively. By putting the base 10 located at the bottom of the transverse slide 7 into the specified position of the pile hole 1, taking the bottom center point of the rotating seat 11 as the positioning point, and the distance sensor 12 is located at the bottom of the rotating seat 11. The distance between the center point and the azimuth point of the rotating seat 11 can be obtained through the measurement data of the distance sensor 12. When performing aperture and verticality detection, the detection module obtains the distance H from the locating point on the rotating seat 11 to the bottom of the pile hole 1 through the distance sensor 12. The reversing module controls the deflection drive member 18 to drive the distance sensor 12 to swing to both sides, thereby measuring the distance data from the locating point on the rotating seat 11 to the side walls of the pile hole 1 on both sides in the lateral direction, which are L1 and L2 respectively. The detection module calculates the average of L1 and L2. The average value is used to obtain the horizontal center point of the positioning point on the rotating seat 11. The detection module sends a control signal to the displacement module. At this time, the displacement module moves the horizontal slide 7 together with the rotating seat 11 to the horizontal center point through the lateral movement component; then the reversing module controls the circumferential driving member 17 to work, and the circumferential driving member 17 controls the rotating seat 11 to deflect 90°. The reversing module then controls the deflection driving member 18 to work so that it drives the distance sensor 12 to swing to both sides, thereby measuring the distance data between the positioning point on the rotating seat 11 and the side walls of the pile hole 1 on both sides in the longitudinal direction. And are L3 and L4 respectively. The detection module obtains the longitudinal center point of the positioning point on the rotating seat 11 by calculating the average value of L3 and L4, and simultaneously obtains the diameter D of the pile hole 1, thereby obtaining the aperture of the pile hole 1. The detection module sends a control signal to the displacement module. At this time, the displacement module moves the longitudinal slide 5 together with the rotating seat 11 to the longitudinal center point through the longitudinal movement component. At this time, the positioning point on the rotating seat 11 is at the center point of the pile hole 1 at a height of H. At this time, the trace pen 14 connected to the transverse slide 7 leaves a trace on the rubbing plate 13, which is point position 1; And, the base 10 located at the bottom of the transverse slide 7 is again lowered to the specified position of the pile hole 1. The detection module obtains the distance h from the positioning point on the rotating seat 11 to the bottom of the pile hole 1 through the distance sensor 12, and repeats the above control measurement operation to move the positioning point on the rotating seat 11 to the center point of the pile hole 1 at the height h. At this time, the trace pen 14 connected to the transverse slide 7 leaves a trace on the rubbing plate 13, namely, point two, and then the verticality data of this pile hole 1 is calculated by the tangent function formula through the distance data between point one and point two and the distance difference data between H and h. The verticality data of the pile hole 1 is obtained through simple calculation, and the aperture of the pile hole 1 is obtained, which is convenient for on-site personnel to quickly measure and calculate.

[0022] In this example, see Figure 2 and Figure 3 The longitudinal movement assembly includes a longitudinal driving member 4 installed on the fixed frame 3, a longitudinal screw 6 installed on the output shaft of the longitudinal driving member 4, and the longitudinal screw 6 is threadedly connected to the longitudinal slide 5. The transverse movement assembly includes a transverse driving member 8 installed on the longitudinal slide 5, and a transverse screw 9 installed on the output shaft of the transverse driving member 8. The transverse screw 9 is threadedly connected to the transverse slide 7. The displacement module is electrically connected to the longitudinal driving member 4 and the transverse driving member 8 respectively. The longitudinal driving member 4 drives the longitudinal screw 6 to rotate in the forward and reverse directions, thereby controlling the longitudinal slide 5 to reciprocate along the fixed frame 3 in the longitudinal direction, and synchronously drives the transverse slide 7 and the trace pen 14 to move in the longitudinal direction; the transverse driving member 8 drives the transverse screw 9 to rotate, thereby driving the transverse slide 7 to reciprocate along the longitudinal slide 5 in the transverse direction, and synchronously drives the transverse slide 7 and the trace pen 14 to move in the transverse direction.

[0023] In addition, the trace pen 14 is plugged into the top of the horizontal slide 7, and the trace pen 14 can be disassembled and replaced as needed. An elastic member is installed at the bottom of the trace pen 14, and the bottom surface of the rubbing plate 13 is covered with rubbing paper. The elastic member can always push the trace pen 14 so that its top is close to the rubbing paper on the rubbing plate 13, leaving a trace on the rubbing paper, and determining the corresponding point one and point two, so as to facilitate the calculation of the verticality of the pile hole 1.

[0024] Preferably, see Figure 1 and Figure 2 The horizontal slide 7 is interspersed with a lifting rope 21, and the bottom end of the lifting rope 21 is installed with the base 10. At least two lifting ropes 21 are provided. By pulling the lifting rope 21, the base 10 is driven to move downward from the bottom of the horizontal slide 7, and the base 10 is adjusted to different heights, thereby realizing the control of the base 10 to move vertically in the reverse direction at the bottom of the horizontal slide 7, which is convenient for the operator to flexibly control the height of the base 10, and at least two lifting ropes 21 reduce the deflection of the base 10 during the downward movement of the control base 10, so that it can move vertically downward stably. The two ends of the longitudinal slide 5 are slidably connected to the fixed frame 3 through sliders, and the bottom four corners of the fixed frame 3 are installed with balancing pads to improve the stability of the movement of the longitudinal slide 5. When the fixed frame 3 is installed, the fixed frame 3 is adjusted to a horizontal state through the balancing pads to improve the accuracy of the detection result.

[0025] The second implementation method: Figure 8-Figure 10As shown, different from the first embodiment, the detection device also includes a positioning mechanism, which includes two blocks 15 installed with the base 10, and a limit block 16 arranged between the two blocks 15. The limit block 16 is installed on the rotating seat 11. The two blocks 15 are used to limit the deflection angle of the limit block 16, and the range of the deflection angle is 0°-90°. The deflection range of the limit block 16 is limited by setting the two blocks 15. When the circumferential driving member 17 controls the rotating seat 11 to drive the limit block 16 to rotate, the limit block 16 moves between the two blocks 15, as shown in FIG. Figure 8 and Fig.10 As shown, it is convenient to control the direction of the distance sensor 12 so that the distance sensor 12 can measure the distance data in the horizontal and vertical directions respectively, thereby facilitating the determination of the center point position of the pile hole 1 at this height.

[0026] Also, see Figure 8 and Fig. 9 The bottom of the rotating seat 11 is provided with a groove matching the mounting seat of the distance sensor 12 along its radial direction to limit the swing angle of the distance sensor 12, and the range of the swing angle is 0°-180°. When the distance sensor 12 swings to the grooves on both sides of the bottom of the rotating seat 11, the swing angle of the distance sensor 12 is 180°. When it is necessary to measure the distance between the bottom positioning point of the rotating seat 11 and the inner wall of the pile hole 1 in the horizontal or vertical direction, the distance sensor 12 can be controlled to face the inner walls of the pile hole 1 on both sides, so as to accurately obtain and calculate the distance between the bottom positioning point of the rotating seat 11 and the inner wall of the pile hole 1.

[0027] Also, see Figure 7 A gear ring 19 is installed at the output shaft of the deflection driving member 18, and the gear ring 19 is meshedly connected with a gear ring 20 installed on the mounting seat of the distance sensor 12. The gear ring 19 is driven to rotate by the deflection driving member 18, and the gear ring 19 drives the gear ring 20 to rotate, thereby controlling the swing of the distance sensor 12 connected to the gear ring 20 and adjusting the direction of the distance sensor 12.

[0028] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A pile foundation verticality and hole diameter detection device, characterized in that: It includes: A fixing frame (3) is mounted on the top outer ring of the pile hole (1); A displacement mechanism, the displacement mechanism comprising a longitudinal slide (5) sliding longitudinally along a fixed frame (3), and a transverse slide (7) moving transversely along the longitudinal slide (5); a longitudinal displacement component for controlling the longitudinal movement of the longitudinal slide (5) is installed on the fixed frame (3); a transverse displacement component for controlling the transverse movement of the transverse slide (7) is installed on the longitudinal slide (5); a trace pen (14) is installed on the top of the transverse slide (7); a rubbing plate (13) is provided above the trace pen (14) and in contact with the top thereof; the rubbing plate (13) is connected to the fixed frame (3); A detection mechanism, the detection mechanism comprising a base (10) that moves vertically at the bottom of a transverse slide (7), a rotating base (11) that is rotatably connected to the bottom of the base (10), and a distance sensor (12) mounted at the bottom of the rotating base (11); a mounting base on the distance sensor (12) that rotates around the diameter of the rotating base (11) via a rotating shaft; a circumferential driving member (17) whose output shaft is connected to the rotating base (11) is mounted on the base (10); a deflection driving member (18) is mounted on the rotating base (11); and the output shaft of the deflection driving member (18) is linked to the mounting base of the distance sensor (12) via a gear set; An intelligent detector (2), the intelligent detector (2) being mounted on a longitudinal slide (5), the intelligent detector (2) being provided with a detection module, a displacement module and a reversing module, the detection module being electrically connected to the displacement module, the reversing module and the distance sensor (12), respectively, the displacement module being electrically connected to the transverse movement component and the longitudinal movement component, respectively, and the reversing module being electrically connected to the circumferential drive member (17) and the deflection drive member (18), respectively.

2. A pile foundation verticality and hole diameter detection device according to claim 1, characterized in that: The longitudinal shift assembly comprises a longitudinal drive member (4) mounted on a fixed frame (3), a longitudinal screw rod (6) mounted on an output shaft of the longitudinal drive member (4), the longitudinal screw rod (6) being threadedly connected to a longitudinal slide seat (5), the transverse shift assembly comprises a transverse drive member (8) mounted on the longitudinal slide seat (5), a transverse screw rod (9) mounted on an output shaft of the transverse drive member (8), the transverse screw rod (9) being threadedly connected to a transverse slide seat (7), and the displacement module is electrically connected to the longitudinal drive member (4) and the transverse drive member (8), respectively.

3. A pile foundation verticality and hole diameter detection device according to claim 1, characterized in that: The trace pen (14) is plugged into the top of the transverse slide seat (7), and an elastic member is installed at the bottom of the trace pen (14), and the bottom surface of the rubbing plate (13) is covered with rubbing paper.

4. A pile foundation verticality and hole diameter detection device according to claim 1, characterized in that: A pulling rope (21) is inserted into the transverse sliding seat (7), the bottom end of the pulling rope (21) is mounted on the base (10), and at least two pulling ropes (21) are provided.

5. A pile foundation verticality and hole diameter detection device according to claim 1, characterized in that: The invention also comprises a positioning mechanism, the positioning mechanism comprising two stoppers (15) mounted on the base (10), and a limit block (16) arranged between the two stoppers (15), the limit block (16) being mounted on the rotating base (11), the two stoppers (15) being used to limit the deflection angle of the limit block (16), and the range of the deflection angle is 0°-90°.

6. A pile foundation verticality and hole diameter detection device according to claim 5, characterized in that: The bottom of the rotating seat (11) is provided with a groove matching the mounting seat of the distance sensor (12) along its radial direction, so as to limit the swing angle of the distance sensor (12), and the range of the swing angle is 0°-180°.

7. A pile foundation verticality and hole diameter detection device according to claim 2, characterized in that: A gear ring 1 (19) is mounted on the output shaft of the deflection drive member (18), and the gear ring 1 (19) is meshingly connected with a gear ring 2 (20) mounted on a mounting seat of the distance sensor (12).

8. A pile foundation verticality and hole diameter detection device according to claim 1, characterized in that: The two ends of the longitudinal slide seat (5) are slidably connected to the fixing frame (3) via sliding blocks, and the four bottom corners of the fixing frame (3) are provided with balancing pads.

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