Pile foundation hole quality detection device and method

Abstract

The present invention belongs to the technical field of pile foundation hole quality detection, and discloses a pile foundation hole quality detection device and method, including a supporting base plate and a wire-paying rope, characterized in that: a receiving through hole is opened on the inner wall of the supporting base plate, a lateral adjustment mechanism is arranged inside the receiving through hole, a bearing plate is arranged above the lateral adjustment mechanism, a front-rear adjustment mechanism is arranged inside the bearing plate, and a wire-paying mechanism is arranged above the bearing plate, and the movement and positioning of the entire device can be achieved by using the cooperation between the positioning mechanism and the universal wheel, and the cooperation between the lateral adjustment mechanism, the bearing plate, the front-rear adjustment mechanism, the wire-paying mechanism, the limiting mechanism, the wire-paying rope and the mark can conveniently position the detector at the specified position of the pile foundation hole for detection, and the cooperation between the mounting block, the extension adjustment mechanism and the protective mechanism can prevent the detector from hitting the wall and being damaged.

Description

Technical Field

[0001] The invention belongs to the technical field of pile foundation hole quality detection, and in particular relates to a pile foundation hole quality detection device and method. Background Art

[0002] The quality inspection of pile foundation holes plays a pivotal role in construction projects. The quality of holes is directly related to the bearing capacity and stability of the pile foundation, which in turn affects the safety and stability of the entire building. Therefore, accurate and efficient inspection of pile foundation hole quality is crucial to ensure the quality of construction projects.

[0003] When inspecting the pile foundation hole, the pile foundation needs to be inspected for quality at the same time, such as its depth and the strength of the side wall. Once the pile foundation hole is tilted, the existing simple method of connecting the rope to the detector will hit the wall and bend the rope. It is easy to be damaged when it hits the wall and touches hard foreign objects. The bending of the rope cannot accurately measure the depth of the hole. When inspecting the pile foundation hole, it is also necessary to inspect the quality of multiple points in the hole. Therefore, it is particularly important to quickly locate the position of the detector according to the actual situation to facilitate the multi-point detection of the detector. To this end, we provide a pile foundation hole quality inspection device and method to solve the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a pile foundation hole quality inspection device and method, which has the advantages of being able to adjust the suspension rope according to the actual situation of the pile foundation hole to calibrate the vertical state of the measuring instrument, accurately display the penetration depth of the detector, and avoid the measuring instrument from hitting the wall and being damaged, and can accurately position the measuring instrument at multiple points for quality inspection.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pile foundation hole quality detection device, comprising a supporting base plate and a wire-paying rope, characterized in that: a receiving through hole is opened on the inner wall of the supporting base plate, a lateral adjustment mechanism is arranged inside the receiving through hole, a bearing plate is arranged above the lateral adjustment mechanism, a front-rear adjustment mechanism is arranged inside the bearing plate, a wire-paying mechanism is arranged above the bearing plate, a limiting mechanism is arranged on the front of the wire-paying mechanism, a mark is engraved on the outer surface of the wire-paying rope, two positioning mechanisms are arranged inside the supporting base plate, four universal wheels are installed on the bottom surface of the supporting base plate, the bottom end of the wire-paying rope is fixedly connected to a mounting block, a detector is installed on the bottom surface of the mounting block, four extension adjustment mechanisms are arranged outside the supporting base plate, and a protective mechanism is arranged on the side of each extension adjustment mechanism away from the mounting block;

[0006] The lateral adjustment mechanism comprises a first threaded rod and two lateral support plates, the protrusions extending from the bottom of the two lateral support plates are both slidably connected to the internal grooves of the support bottom plate, the outer surface of the first threaded rod is rotatably connected to the support bottom plate, and the outer surface of the first threaded rod is threadedly connected to one of the lateral support plates;

[0007] The front-rear adjustment mechanism comprises a second threaded rod, the outer surface of the second threaded rod is rotatably connected to the inner wall of the bearing plate, the rear end of the second threaded rod is rotatably connected to a slotted block, and the outer surface of the slotted block is slidably connected to the slot inside the bearing plate;

[0008] The wire-releasing mechanism comprises a wire-releasing roller, the wire-releasing rope is wound on the outer surface of the wire-releasing roller, and a driving gear is fixedly connected to the front end of the wire-releasing roller;

[0009] The limiting mechanism comprises a limiting outer groove block and a limiting cambered surface block, the bottom surface of the limiting outer groove block is fixedly connected with a push cambered surface rod, and the outer surface of the push cambered surface rod is in contact with the limiting cambered surface block;

[0010] The extension adjustment mechanism comprises an extension slot, the inner wall of which is slidably connected with a positioning slotted plate, and a side surface of the positioning slotted plate close to the mounting block is fixedly connected to the mounting block;

[0011] The protection mechanism comprises a damper and a damping spring. The outer surface of the damper is slidably connected to the limiting cylinder. One end of the damping spring away from the damper is fixedly connected to the inner wall of the limiting cylinder.

[0012] Preferably, the right side surface of the first threaded rod is fixedly connected with the first turntable, the upper surfaces of the two transverse support plates are fixedly connected with transverse support columns, and the top ends of the two transverse support columns are fixedly connected with the bottom surface of the supporting plate.

[0013] Preferably, a second turntable is fixedly connected to the front side of the second threaded rod, and two guide wheels are rotatably connected to the inner wall of the slotted block, and the outer surfaces of the two guide wheels are in contact with the outer surface of the pay-out rope.

[0014] Preferably, the outer surface of the pay-off roller is rotatably connected to two supporting uprights, and the two supporting uprights are both mounted on the upper surface of the bearing plate.

[0015] Preferably, the limiting mechanism also includes a positioning support plate, the back side of the positioning support plate is fixedly connected to the front side of one of the supporting vertical plates, the pushing arc rod and the limiting arc block are both slidably connected to the groove inside the positioning support plate, the upper surface of the pushing arc rod is fixedly connected to the limiting outer groove block, the groove inside the limiting outer groove block is in contact with the teeth on the outer surface of the driving gear, and the bottom surface of the pushing arc rod is fixedly connected to the pushing block.

[0016] Preferably, a return spring is fixedly connected to the left side surface of the limiting arc surface block, and the left end of the return spring is fixedly connected to the slot inside the positioning support plate.

[0017] Preferably, the positioning mechanism includes a third turntable, the bottom surface of the third turntable is fixedly connected to a third threaded rod, the outer surface of the third threaded rod is threadedly connected to the supporting bottom plate, the bottom end of the third threaded rod is rotatably connected to a lifting plate, the bottom end of the lifting plate is fixedly connected to a group of ground nails, the upper surface of the lifting plate is fixedly connected to two guide rods, and the outer surfaces of the two guide rods are both slidably connected to the supporting bottom plate.

[0018] Preferably, the extension adjustment mechanism also includes a limit rod, the outer surface of the limit rod is in contact with the inner wall of the extension slot and the slot inside the positioning slot plate respectively, and the outer surface of the limit rod is wrapped with a retaining spring, and the two ends of the retaining spring are respectively fixedly connected to the outer surface of the extension slot and the outer surface of the limit rod.

[0019] Preferably, one end of the damper away from the damping spring is fixedly connected to a connecting rod, the connecting rod is slidably connected to the inner wall of the limiting cylinder, one end of the connecting rod away from the damper is fixedly connected to the extension groove, and one end of the limiting cylinder away from the connecting rod is fixedly connected to a wall-touching ball.

[0020] The present invention also provides a method for using a pile foundation hole quality detection device, comprising the following steps:

[0021] S1: First, transport the device from the storage area to the pile foundation drilling site, push the support base plate to move to the designated detection position of the pile foundation drilling, and then position the support base plate through the positioning mechanism;

[0022] S2: Use the extension adjustment mechanism to adjust the distance of the protective mechanism protecting the detector according to the on-site hole conditions, and then use the wire-laying mechanism, limit mechanism and mark to lay out the wire rope and position the detector inside the hole to facilitate multi-point designated point detection.

[0023] S3: When the pay-off rope is bent during the detection process of the detector, the lateral adjustment mechanism, the load-bearing plate, the front and rear adjustment mechanism, the pay-off mechanism, the limit mechanism and the mark are used to adjust the pay-off rope so that the pay-off rope always remains in a vertical state to ensure the accuracy of depth positioning and detection;

[0024] S4: The data collected by the detector is transmitted to the road equipment and stored for subsequent analysis.

[0025] The beneficial effects of the present invention are as follows: the present invention can realize the movement and positioning of the entire device by using the cooperation between the positioning mechanism and the universal wheel; by using the cooperation between the lateral adjustment mechanism, the load-bearing plate, the front and rear adjustment mechanism, the wire-releasing mechanism, the limiting mechanism, the wire-releasing rope and the mark, the detector can be conveniently positioned at the designated position of the pile foundation hole for detection; and by using the cooperation between the mounting block, the extension adjustment mechanism and the protective mechanism, the detector can be prevented from being damaged by hitting the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a three-dimensional structural schematic diagram of the lateral adjustment mechanism, the bearing plate, the front and rear adjustment mechanism, the wire-releasing rope and the mark in the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the load-bearing plate, the wire-releasing mechanism and the wire-releasing rope in the present invention;

[0029] Figure 4 For the present invention Figure 3 A magnified schematic diagram of part A in FIG.

[0030] Figure 5 It is a cross-sectional view of the internal structure of the extension adjustment mechanism and the protection mechanism in the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the supporting base plate and the positioning mechanism in the present invention.

[0032] In the figure: 1. Supporting bottom plate; 2. Receiving through hole; 3. Lateral adjustment mechanism; 301. First rotating disk; 302. First threaded rod; 303. Lateral support plate; 304. Lateral support column; 4. Load-bearing plate; 5. Front-rear adjustment mechanism; 501. Second rotating disk; 502. Second threaded rod; 503. Slotted block; 504. Wire guide wheel; 601. Supporting vertical plate; 602. Pay-off roller; 603. Driving gear; 604. Rotating rod; 7. Limiting mechanism; 701. Pushing block; 702. Pushing arc surface rod; 703. Limiting outer slot block; 704. Limiting arc surface block; 705. Reset spring; 706, positioning support plate; 8, line rope; 9, mark; 10, positioning mechanism; 1001, third turntable; 1002, third threaded rod; 1003, lifting plate; 1004, ground nail; 1005, guide rod; 11, universal wheel; 12, mounting block; 13, detector; 14, extension adjustment mechanism; 1401, limit rod; 1402, retaining spring; 1403, positioning slotted plate; 1404, extension slot; 15, protection mechanism; 1501, connecting rod; 1502, damper; 1503, damping spring; 1504, limit cylinder; 1505, wall ball. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-6 As shown, a pile foundation hole quality detection device includes a support base plate 1 and a wire rope 8. The inner wall of the support base plate 1 is provided with a receiving through hole 2. A lateral adjustment mechanism 3 is arranged inside the receiving through hole 2. The lateral adjustment mechanism 3 includes a first threaded rod 302 and two lateral support plates 303. The protrusions extending from the bottom of the two lateral support plates 303 are both slidably connected with the internal grooves of the support base plate 1. The interior of the support base plate 1 is provided with a groove adapted to the protrusions extending from the bottom of the lateral support plates 303, so as to guide the sliding of the lateral support plates 303. The outer surface of the first threaded rod 302 is rotatably connected to the support base plate 1. The first threaded rod The outer surface of 302 is threadedly connected to one of the transverse support plates 303, and the right side surface of the first threaded rod 302 is fixedly connected to the first turntable 301. By using the first turntable 301, the first threaded rod 302 can be easily rotated. The upper surfaces of the two transverse support plates 303 are fixedly connected to the transverse support columns 304. The transverse support plates 303 and the transverse support columns 304 are connected by a group of bolts. A bearing plate 4 is arranged above the transverse adjustment mechanism 3. The top ends of the two transverse support columns 304 are fixedly connected to the bottom surface of the bearing plate 4. By using the transverse adjustment mechanism 3, the bearing plate 4 can be driven to move left and right.

[0035] A front-and-rear adjustment mechanism 5 is provided inside the supporting plate 4, and the front-and-rear adjustment mechanism 5 includes a second threaded rod 502, and the outer surface of the second threaded rod 502 is rotatably connected to the inner wall of the supporting plate 4, and the rear end of the second threaded rod 502 is rotatably connected to a slotted block 503, and the outer surface of the slotted block 503 is slidably connected to the slot inside the supporting plate 4, and the front of the second threaded rod 502 is fixedly connected to a second turntable 501. By using the second turntable 501, it is convenient for workers to rotate the second threaded rod 502, and the inner wall of the slotted block 503 is rotatably connected to two wire wheels 504, and the outer surfaces of the two wire wheels 504 are in contact with the outer surface of the pay-off rope 8. The pay-off rope 8 is passed through the two wire wheels 504, so that the movement of the slotted block 503 can drive the pay-off rope 8 with the help of the two wire wheels 504.

[0036] A pay-off mechanism is provided above the supporting plate 4, and the pay-off mechanism includes a pay-off roller 602, and the pay-off rope 8 is wound on the outer surface of the pay-off roller 602. The front end of the pay-off roller 602 is fixedly connected with a driving gear 603, and the outer surface of the driving gear 603 is provided with dense and circumferentially arranged teeth. The gap in the middle can facilitate the limiting mechanism 7 to limit it. The outer surface of the pay-off roller 602 is rotatably connected to two supporting vertical plates 601, and the two supporting vertical plates 601 are both installed on the upper surface of the supporting plate 4. By using the two supporting vertical plates 601, the pay-off roller 602 can be stably supported, and the two supporting vertical plates 601 are installed on the upper surface of the supporting plate 4 by bolts.

[0037] A limiting mechanism 7 is arranged on the front of the line-releasing mechanism, and the limiting mechanism 7 includes a limiting outer groove block 703 and a limiting arc surface block 704. The bottom surface of the limiting outer groove block 703 is fixedly connected with a push arc surface rod 702, and the outer surface of the push arc surface rod 702 is in contact with the limiting arc surface block 704. The change line of the outer surface of the push arc surface rod 702 and the edge line of the outer surface of the limiting arc surface block 704 are both arranged in an arc shape, so that the push arc surface rod 702 can push the limiting arc surface block 704 when moving. The limiting mechanism 7 also includes a positioning support plate 706, and the back side of the positioning support plate 706 is connected to one of the supporting vertical plates 601. The front side is fixedly connected, the positioning support plate 706 is fixedly connected to the front support vertical plate 601, the sliding arc rod 702 and the limiting arc block 704 are both slidably connected to the slot inside the positioning support plate 706, the interior of the positioning support plate 706 is provided with front and rear slots adapted to the sliding arc rod 702, and transverse slots adapted to the limiting arc block 704, the upper surface of the sliding arc rod 702 is fixedly connected to the limiting outer groove block 703, the slot inside the limiting outer groove block 703 is in contact with the teeth on the outer surface of the driving gear 603, and the bottom surface of the sliding arc rod 702 is fixedly connected to the pushing block 701.

[0038] A return spring 705 is fixedly connected to the left side of the limiting arc block 704, and the left end of the return spring 705 is fixedly connected to the slot inside the positioning support plate 706. By using the elastic force of the return spring 705, the limiting arc block 704 can be reset to limit the sliding arc rod 702 again.

[0039] The outer surface of the pay-off rope 8 is engraved with a mark 9. By using the mark 9, the length of the detection instrument 13 that is probed downward can be easily observed, so that the depth of the pile hole can be detected. Two positioning mechanisms 10 are arranged inside the supporting base plate 1. The positioning mechanism 10 includes a third turntable 1001. The bottom surface of the third turntable 1001 is fixedly connected to a third threaded rod 1002. The outer surface of the third threaded rod 1002 is threadedly connected to the supporting base plate 1. The bottom end of the third threaded rod 1002 is rotatably connected to a lifting plate 1003. The bottom end of the lifting plate 1003 is fixedly connected to a group of ground nails 1004. By using a group of ground nails 1004, the device can be more firmly connected to the ground. Two guide rods 1005 are fixedly connected to the upper surface of the lifting plate 1003. The outer surfaces of the two guide rods 1005 are both slidably connected to the supporting base plate 1. By using the two guide rods 1005, the lifting and lowering of the lifting plate 1003 can be guided.

[0040] Four universal wheels 11 are installed on the bottom surface of the supporting base plate 1. By using the four universal wheels 11, the device can be easily driven to move.

[0041] The bottom end of the pay-off rope 8 is fixedly connected to a mounting block 12, and a detector 13 is installed on the bottom surface of the mounting block 12. By using the mounting block 12, the detector 13 can be supported, and the extension adjustment mechanism 14 and the protective mechanism 15 can be conveniently extended to protect it. Four extension adjustment mechanisms 14 are arranged on the outside of the supporting base plate 1. The four extension adjustment mechanisms 14 are arranged at an inclined angle, which can better protect the detector 13. A protective mechanism 15 is arranged on the side of each extension adjustment mechanism 14 away from the mounting block 12.

[0042] The extension adjustment mechanism 14 includes an extension groove 1404, the inner wall of the extension groove 1404 is slidably connected to a positioning slotted plate 1403, and the side of the positioning slotted plate 1403 close to the mounting block 12 is fixedly connected to the mounting block 12. The extension adjustment mechanism 14 also includes a limit rod 1401, and the outer surface of the limit rod 1401 is respectively in contact with the inner wall of the extension groove 1404 and the slot inside the positioning slotted plate 1403. A group of slots arranged equidistantly are opened inside the positioning slotted plate 1403, so that it is more The distance between the positioning slotted plate 1403 and the positioning slotted plate 1403 is adjusted according to the hole diameter. The outer surface of the limiting rod 1401 is wrapped with a retaining spring 1402. The two ends of the retaining spring 1402 are respectively fixedly connected to the outer surface of the extension groove 1404 and the outer surface of the limiting rod 1401. The retaining spring 1402 is in a relaxed state in a natural state. The use of the set retaining spring 1402 can enable the limiting rod 1401 to continuously maintain the limit on the positioning slotted plate 1403.

[0043] The protection mechanism 15 includes a damper 1502 and a damping spring 1503. The outer surface of the damper 1502 is slidably connected to the limiting cylinder 1504. The end of the damping spring 1503 away from the damper 1502 is fixedly connected to the inner wall of the limiting cylinder 1504. The end of the damper 1502 away from the damping spring 1503 is fixedly connected to a connecting rod 1501. The connecting rod 1501 is slidably connected to the inner wall of the limiting cylinder 1504. The end of the connecting rod 1501 away from the damper 1502 is fixedly connected to the elongated groove 1404. The end of the limiting cylinder 1504 away from the connecting rod 1501 is fixedly connected to a wall-touching ball 1505. There is a large friction between the outer surfaces of the connecting rod 1501 and the damper 1502 and the limiting cylinder 1504, thereby improving the buffering effect of the wall-touching ball 1505 touching the wall.

[0044] This embodiment also provides a method for using the pile foundation hole quality detection device, including the following steps:

[0045] S1: First, the device is transported from the storage area to the pile foundation drilling site, the support base plate 1 is pushed to move to the designated detection position of the pile foundation drilling, and then the support base plate 1 is positioned by the positioning mechanism 10;

[0046] S2: The extension adjustment mechanism 14 is then used to adjust the distance of the protection mechanism 15 protecting the detector 13 according to the on-site hole-forming conditions, and then the wire-releasing mechanism, the limit mechanism 7 and the mark 9 are used to release the wire-releasing rope 8 and position the detector 13 inside the hole to facilitate multi-point designated point detection.

[0047] S3: During the detection process of the detector 13, when the pay-off rope 8 is bent, the pay-off rope 8 is adjusted using the lateral adjustment mechanism 3, the load-bearing plate 4, the front-rear adjustment mechanism 5, the pay-off mechanism, the limit mechanism 7 and the mark 9, so that the pay-off rope 8 always remains in a vertical state to ensure the accuracy of depth positioning and detection;

[0048] S4: The data collected by the detector 13 is transmitted to the road equipment and stored for subsequent analysis.

[0049] Working principle: First, push the support base plate 1 to move above the pile foundation hole, and by rotating the third turntable 1001, the third threaded rod 1002 can be driven to rotate, which can drive the lifting plate 1003 and a group of ground nails 1004 to move, until a group of ground nails 1004 are inserted into the ground, and the positioning of the device is completed. By pulling the limit rod 1401, the limit rod 1401 can release the limit on the positioning slotted plate 1403, and the length between them can be adjusted according to the diameter of the hole, so as to adjust the wall ball 1505 of the wall contact distance, push the push block 701 backward, can drive the push arc rod 702 and the limiting outer groove block 703 to move, so that the limiting outer groove block 703 releases the limit on the driving gear 603, and in the process of the movement of the push arc rod 702, it can push the limiting arc block 704 to move to the left until the push arc rod 702 completely releases the limit on the driving gear 603, under the elastic force of the reset spring 705, it can drive the limiting arc block 704 to reset and limit the push arc rod 702 again, and finally the belt can be driven. The unlocking of the moving gear 603 can drive the driving gear 603 and the pay-off roller 602 to rotate by using the rotating rod 604, so that the pay-off rope 8 can be paid out. During the pay-off process, the limit mechanism 7 can be used to lock the pay-off mechanism at any time as needed, so that the detector 13 can be positioned at one place for detection. The observation mark 9 can observe the pay-off distance of the pay-off rope 8 in real time. If the pay-off rope 8 is tilted, the first turntable 301 can be rotated to drive the first threaded rod 302, the lateral support plate 303, and the lateral support column 30 4 and the carrying plate 4 move, so that the lateral position of the pay-out rope 8 can be adjusted. By rotating the second turntable 501, the second threaded rod 502 and the slotted block 503 and the two wire wheels 504 can be driven to move, so that the front and rear positions of the pay-out rope 8 can be adjusted. During the detection process, when the detector 13 is too close to the hole, the wall-touching ball 1505 will contact the wall. Under the joint action of the damping spring 1503 and the damper 1502, the impact can be buffered, so that the detector 13 can be prevented from being damaged by hitting the wall.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pile foundation hole quality detection device, comprising a supporting base plate (1) and a wire-laying rope (8), characterized in that: A detector (13) is installed at the end of the wire-releasing rope (8); a storage through hole (2) is opened on the inner wall of the support base plate (1); a lateral adjustment mechanism (3) is arranged inside the storage through hole (2); a bearing plate (4) is arranged above the lateral adjustment mechanism (3); a front-rear adjustment mechanism (5) is arranged inside the bearing plate (4); a wire-releasing mechanism is arranged above the bearing plate (4); a limiting mechanism (7) is arranged on the front of the wire-releasing mechanism; four extension adjustment mechanisms (14) are arranged outside the support base plate (1); and a protective mechanism (15) is arranged on the side of each extension adjustment mechanism (14) away from the mounting block (12); The limiting mechanism (7) comprises a limiting outer groove block (703) and a limiting arc surface block (704); the bottom surface of the limiting outer groove block (703) is fixedly connected to a push arc surface rod (702); and the outer surface of the push arc surface rod (702) is in contact with the limiting arc surface block (704); The extension adjustment mechanism (14) comprises an extension groove (1404), the inner wall of the extension groove (1404) is slidably connected to a positioning slotted plate (1403), and a side surface of the positioning slotted plate (1403) close to the mounting block (12) is fixedly connected to the mounting block (12); The protection mechanism (15) comprises a damper (1502) and a damping spring (1503); the outer surface of the damper (1502) is slidably connected to a limiting cylinder (1504); and one end of the damping spring (1503) away from the damper (1502) is fixedly connected to the inner wall of the limiting cylinder (1504); The limiting mechanism (7) further comprises a positioning support plate (706), the back surface of the positioning support plate (706) being fixedly connected to the front surface of one of the supporting upright plates (601), the push arc surface rod (702) and the limiting arc surface block (704) being slidably connected to the internal slot of the positioning support plate (706), the upper surface of the push arc surface rod (702) being fixedly connected to the limiting outer slot block (703), the internal slot of the limiting outer slot block (703) being in contact with the teeth on the outer surface of the driving gear (603), and the bottom surface of the push arc surface rod (702) being fixedly connected to the push block (701); A return spring (705) is fixedly connected to the left side of the limiting arc surface block (704), and the left end of the return spring (705) is fixedly connected to the slot inside the positioning support plate (706).

2. The pile foundation hole quality detection device according to claim 1 is characterized in that: The lateral adjustment mechanism (3) comprises a first threaded rod (302) and two lateral support plates (303), the protrusions extending from the bottom of the two lateral support plates (303) are both slidably connected to the internal slots of the support base plate (1), the outer surface of the first threaded rod (302) is rotatably connected to the support base plate (1), and the outer surface of the first threaded rod (302) is threadedly connected to one of the lateral support plates (303); The front-rear adjustment mechanism (5) comprises a second threaded rod (502), the outer surface of the second threaded rod (502) being rotatably connected to the inner wall of the bearing plate (4), the rear end of the second threaded rod (502) being rotatably connected to a slotted block (503), the outer surface of the slotted block (503) being slidably connected to a slot inside the bearing plate (4).

3. The pile foundation hole quality detection device according to claim 1 is characterized in that: The wire-releasing mechanism comprises a wire-releasing roller (602), the wire-releasing rope (8) is wound on the outer surface of the wire-releasing roller (602), and a driving gear (603) is fixedly connected to the front end of the wire-releasing roller (602).

4. The pile foundation hole quality detection device according to claim 2 is characterized in that: The right side surface of the first threaded rod (302) is fixedly connected to the first turntable (301), the upper surfaces of the two transverse support plates (303) are fixedly connected to transverse support columns (304), and the top ends of the two transverse support columns (304) are fixedly connected to the bottom surface of the bearing plate (4).

5. The pile foundation hole quality detection device according to claim 2 is characterized in that: The front side of the second threaded rod (502) is fixedly connected to a second turntable (501), and the inner wall of the slotted block (503) is rotatably connected to two guide wheels (504), and the outer surfaces of the two guide wheels (504) are in contact with the outer surface of the pay-out rope (8).

6. The pile foundation hole quality detection device according to claim 3 is characterized in that: The outer surface of the pay-off roller (602) is rotatably connected to two supporting uprights (601), and the two supporting uprights (601) are both mounted on the upper surface of the bearing plate (4).

7. The pile foundation hole quality detection device according to claim 1 is characterized in that: The outer surface of the pay-off rope (8) is engraved with a mark (9), two positioning mechanisms (10) are arranged inside the supporting base plate (1), four universal wheels (11) are installed on the bottom surface of the supporting base plate (1), the bottom end of the pay-off rope (8) is fixedly connected to a mounting block (12), the bottom surface of the mounting block (12) is installed with the detector (13), the positioning mechanism (10) comprises a third rotating disk (1001), the bottom surface of the third rotating disk (1001) is fixedly connected to a third rotating disk (1001), and the bottom surface of the third rotating disk (1001) is fixedly connected to a third rotating disk (1001). Three threaded rods (1002), the outer surface of the third threaded rod (1002) being threadedly connected to the support base plate (1), the bottom end of the third threaded rod (1002) being rotatably connected to a lifting plate (1003), the bottom end of the lifting plate (1003) being fixedly connected to a group of ground nails (1004), the upper surface of the lifting plate (1003) being fixedly connected to two guide rods (1005), the outer surfaces of the two guide rods (1005) being slidably connected to the support base plate (1).

8. The pile foundation hole quality detection device according to claim 1 is characterized in that: The extension adjustment mechanism (14) further comprises a limit rod (1401), the outer surface of which is in contact with the inner wall of the extension slot (1404) and the slot inside the positioning slot plate (1403), respectively; a retaining spring (1402) is wound around the outer surface of the limit rod (1401), and the two ends of the retaining spring (1402) are fixedly connected to the outer surface of the extension slot (1404) and the outer surface of the limit rod (1401), respectively.

9. The pile foundation hole quality detection device according to claim 8, characterized in that: One end of the damper (1502) away from the damping spring (1503) is fixedly connected to a connecting rod (1501), the connecting rod (1501) is slidably connected to the inner wall of the limiting cylinder (1504), one end of the connecting rod (1501) away from the damper (1502) is fixedly connected to the elongated groove (1404), and one end of the limiting cylinder (1504) away from the connecting rod (1501) is fixedly connected to a wall-touching ball (1505).

10. A method for using a pile foundation hole quality detection device, using the pile foundation hole quality detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: First, the device is transported from the storage area to the pile foundation drilling site, the support base plate (1) is pushed to move to the designated detection position of the pile foundation drilling, and then the support base plate (1) is positioned by the positioning mechanism (10); S2: The extension adjustment mechanism (14) is then used to adjust the distance at which the protection mechanism (15) protects the detector (13) according to the hole-forming conditions on site, and then the wire-releasing mechanism, the limit mechanism (7) and the mark (9) are used to release the wire-releasing rope (8) and position the detector (13) inside the hole, so as to facilitate multi-point designated point detection. S3: During the detection process of the detector (13), if the pay-off rope (8) is bent, the pay-off rope (8) is adjusted using the lateral adjustment mechanism (3), the load-bearing plate (4), the front-rear adjustment mechanism (5), the pay-off mechanism, the limit mechanism (7) and the mark (9) so that the pay-off rope (8) always remains in a vertical state, so as to ensure the accuracy of depth positioning and detection; S4: The data collected by the detector (13) is transmitted to the road equipment and stored for subsequent analysis.

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