A high-strain pile testing apparatus

Abstract

This invention relates to a high-strain pile testing device. A foundation base can move a guide frame. A hammer is suspended inside the guide frame via a self-detaching clamp, which is connected to the load-bearing fixed beam of the guide frame via an automatic pin device. A slide rail is provided inside the guide frame, and the slide rail slides in conjunction with the hammer's groove. During testing, the hammer is directly opposite the pile testing hole on the foundation base. This pile testing device can move the guide frame via the foundation base to transfer the high-strain pile testing device to the next testing point. During the transfer, the guide frame can be folded to reduce travel space, adapting to situations with supporting beams in the foundation pit. It also eliminates the need for a large truck crane for transfer, making it more adaptable to different sites. Furthermore, the sliding engagement of the slide rail and groove ensures that the hammer does not deviate during ascent and descent, thus solving the problem of eccentric hammer impact during lifting and lowering.

Description

Technical Field

[0001] This invention relates to the field of building strain testing equipment, and particularly to a high-strain pile testing device. Background Technology

[0002] The high-strain method (HSM) hammer impact system is used in the HSM testing of foundation piles. It includes a hammer, a support guide frame, a release device, a hoisting system, and a penetration testing system. The support guide frame primarily serves two functions: guidance and support. Firstly, it supports the weight of the hammer, bearing the entire weight of the hammer as it is transferred from the crane to the support guide frame. Secondly, during the hammer's descent, it must ensure that the hammer strikes the core of the pile foundation vertically (free fall), acting as a guide during the impact process. Typically, the hammer weighs between 20 and 100 tons, the support guide frame is 2 to 4 meters high, and the pile testing equipment weighs between 60 and 200 tons. The hammer's height can be adjusted via the hoisting system, and a very large truck crane is required to lift the pile testing equipment to the testing point.

[0003] Currently, suspension systems generally use steel wire ropes, steel plates, or steel bars. In terms of quantity, one steel bar is usually used, while two, four, or eight steel wire ropes are commonly used. The weight is lifted by pulling the steel wire rope. Since the steel wire rope is a flexible structure, the direction of the force is often prone to deviation. As the weight is raised, it is easy for eccentric hammering to occur after it falls. Furthermore, when the site has a dense number of pile points and little open space, it is difficult for large truck cranes to stay on the site for lifting. Many projects cannot complete the vertical bearing capacity test of a single pile because the lifting requirements cannot be met. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a high-strain pile measuring device that can solve the problems of eccentric hammering caused by the lifting and lowering of the hammer, as well as the inconvenience of moving the pile measuring device.

[0005] The technical solution adopted in this invention is as follows: a high-strain pile testing device, comprising a foundation base, a guide frame, a self-detaching clamp, and a weight. The foundation base is used to drive the guide frame to move. The weight is suspended inside the guide frame by the self-detaching clamp. The self-detaching clamp is connected to the load-bearing fixed beam of the guide frame in a lifting manner through an automatic pin device. A slide rail is provided on the inner side of the guide frame. The slide rail is slidably engaged with the slide groove of the weight. During testing, the weight is directly opposite the pile testing hole of the foundation base.

[0006] Preferably, the self-detaching clamp includes a lifting beam, a boom, and a clamp. The clamp is used to grab the counterweight. The bottom end of the boom is connected to the hinge point of the clamp. The top end of the boom passes through the lifting beam. The lifting beam is mounted on the guide frame in a liftable manner. The lifting beam is raised and lowered to open and close the clamp.

[0007] Preferably, both sides of the guide frame are provided with lifting grooves, and both ends of the lifting beam extend into the two lifting grooves respectively. Both sides of the lifting beam are slidably engaged with the lifting grooves through end pulley seats. Both sides of the guide frame are equipped with vertically upward lifting cylinders, and the two lifting cylinders are symmetrically supported at both ends of the lifting beam. The lifting beam is driven to slide along the groove direction of the lifting groove by the lifting cylinders.

[0008] Preferably, the load-bearing fixed crossbeam is disposed on the top of the guide frame, the boom is provided with no less than two vertically arranged fixing holes, the load-bearing fixed crossbeam is provided with insertion holes, the automatic pin device includes a pin that is movably inserted into the insertion hole, the pin is connected to a telescopic rod through a connecting plate, and the telescopic rod is used to drive the pin to extend into or retract from the fixing hole.

[0009] Preferably, the counterweight includes an upper counterweight and a lower counterweight, which are detachably connected, and the sides of both the upper and lower counterweights are provided with the sliding groove.

[0010] Preferably, the guide frame includes a fixed support frame and a flip guide frame. The fixed support frame is fixedly installed on the base, and the flip guide frame is hinged to the base via a mounting seat. When the flip guide frame is perpendicular to the base, the fixed support frame supports the bottom of one side of the flip guide frame.

[0011] Preferably, the two sides of the tilting guide frame are connected to tilting hydraulic cylinders, and the ends of the two tilting hydraulic cylinders are hinged to the side wall of the base.

[0012] Preferably, both sides of the flipping guide frame and the fixed support frame are connected with steel wire ropes.

[0013] Preferably, the base includes an upper movable seat and a lower movable seat that are slidably connected. Lifting support arms are connected to both sides of the upper movable seat, and a ground pad beam is slidably connected to the bottom of the lower movable seat. The relative displacement direction of the lower movable seat and the ground pad beam is perpendicular to the relative displacement direction of the upper movable seat and the lower movable seat.

[0014] Preferably, the lifting support arm includes a telescopic arm, the end of which is connected to a lifting arm. The telescopic arm includes telescopic beams that are telescopically arranged on both sides of the upper movable seat and a telescopic push rod installed on the upper movable seat. The push rod end of the telescopic push rod is connected to the telescopic beam.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The high-strain pile measuring device of this invention can be moved by the guide frame driven by the foundation base to transfer the high-strain pile measuring device to the next measuring point, eliminating the need for a super-large truck crane for transfer, thus making it more adaptable to the site and reducing transfer costs. In addition, the guide frame of this invention is equipped with a slide rail on the inner side. The rise and fall of the hammer is ensured by the cooperation of the slide rail and the slide groove, so as to prevent the hammer from deviating during the rise and fall process, thereby solving the problem of the hammer falling eccentrically and striking the target when it rises and falls. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the high-strain pile measuring device of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the high-strain pile measuring device of the present invention. Figure 2 (No heavy hammer);

[0019] Figure 3 This is a schematic diagram of the high-strain pile measuring device of the present invention. Figure 3 (No steel wire rope);

[0020] Figure 4 This is a schematic diagram of the lifting support arm of the high-strain pile measuring device of the present invention;

[0021] Figure 5 This is a schematic diagram showing the connection between the self-detaching clamp and the counterweight of the high-strain pile measuring device of the present invention;

[0022] Figure 6 This is a schematic diagram of the high-strain pile measuring device of the present invention. Figure 4 (No heavy hammer). Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] See Figures 1-6 This invention provides a high-strain pile measuring device, including a foundation base 1, a guide frame 2, a self-detaching clamp 3, and a weight 4. The guide frame 2 is fixedly connected to the upper end of the foundation base 1, and the foundation base 1 is used to drive the guide frame 2 to move. The weight 4 is suspended inside the guide frame 2 by the self-detaching clamp 3. The self-detaching clamp 3 is connected to the load-bearing fixed crossbeam 20 of the guide frame 2 in a liftable manner by an automatic pin device 34. The guide frame 2 is provided with a slide rail 29 on the inner side, and the slide rail 29 slides in cooperation with the slide groove 43 of the weight 4. During testing, the automatic pin device 34 fixes the self-release clamp 3 at a suitable height. The self-release clamp 3 grabs the hammer 4, which is directly facing the pile testing hole 10 of the foundation base 1. The pile testing hole 10 is aligned with the core of the pile to be tested. When the self-release clamp 3 releases the hammer 4, the hammer 4 falls along the slide rail 29 and accurately impacts the core of the pile. After the test is completed, the foundation base 1 can move the guide frame 2 away from the pile or move it to the next testing point.

[0027] In this embodiment, the self-detaching clamp 3 includes a lifting beam 31, a boom 32, and a clamp 33, which is used to grip the counterweight 4. More specifically, the clamp 33 includes a first clamping arm 332 and a second clamping arm 333 that are cross-hinged. The first clamping arm 332 and the second clamping arm 333 are respectively hinged to a first connecting rod 334 and a second connecting rod 335. The ends of the first connecting rod 334 and the second connecting rod 335 are hinged to connecting rod mounting seats 311 on both sides of the lifting beam 31. The ends of the first clamping arm 332 and the second clamping arm 333 are bent to form a clamp structure that comes closer together. The first clamping arm 332 and the second clamping arm 333 can rotate relative to each other, thereby realizing the opening and closing of the clamp 33. The first clamping arm 332 and the first connecting rod 334, and the second clamping arm 333 and the second connecting rod 335 can rotate relative to each other. The first connecting rod 334 and the second connecting rod 335 can rotate around the connecting rod mounting seat 311. The bottom end of the boom 32 is connected to the hinge point 331 of the first clamping arm 332 and the second clamping arm 333. The top end of the boom 32 passes through the limiting hole of the lifting beam 31 and is connected to the load-bearing fixed beam 20 through the automatic pin device 34. The lifting beam 31 is mounted on the guide frame 2 in a liftable manner. The lifting beam 31 is raised and lowered to realize the opening and closing of the clamp 33. In this application, the guide frame 2 is a four-sided "U"-shaped steel frame structure, which can ensure the high structural stability of the guide frame 2. The load-bearing fixed beam 20 is fixedly connected to the middle of the top end of the guide frame 2. Both sides of the guide frame 2 are provided with lifting grooves, and the two ends of the lifting beam 31 extend into the two lifting grooves respectively. The lifting beam 31 is connected to end pulley seats 36 on both sides, and slides with the lifting chute through the end pulley seats 36. The guide frame 2 is equipped with vertically upward lifting cylinders 35 on both sides. The two lifting cylinders 35 are symmetrically supported at both ends of the lifting beam 31. The lifting cylinders 35 can drive the lifting beam 31 to slide along the groove of the lifting chute.

[0028] When the automatic pin device 34 fixes the boom 32, the extension and retraction of the push rod of the lifting cylinder 35 can drive the lifting beam 31 to rise and fall, thereby changing the angle between the first clamping arm 332 and the first connecting rod 334, and the second clamping arm 333 and the second connecting rod 335, so that the first clamping arm 332 and the second clamping arm 333 can rotate relative to each other, which can realize the control of the opening or closing of the clamp 33, making it convenient to clamp or release the hammer 4.

[0029] More specifically, the load-bearing fixed beam 20 is provided with a limiting through hole for the vertical passage of the boom 32, and the boom 32 is provided with no less than two vertically arranged fixing holes 321. The load-bearing fixed beam 20 on the front side of the fixing hole 321 is provided with an insertion hole 201. The automatic pin device 34 includes a pin 341 movably inserted into the insertion hole 201. The pin 341 is used to engage with any of the fixing holes 321 to fix the boom 32. The pin 341 is connected to a telescopic rod 343 through a connecting plate 342. The telescopic rod 343 can be a cylinder, a hydraulic cylinder, or an electric push rod. In this application, a hydraulic cylinder is preferred. The telescopic rod 343 is used to drive the pin 341 to extend into or out of the fixing hole 321. By controlling the pin 341 to engage with the fixing holes 321 at different heights through the telescopic rod 343, the boom 32 can be controlled at different heights, thereby changing the height of the clamp 33 and adjusting the falling height of the hammer 4 to meet the testing requirements of various foundation piles.

[0030] Furthermore, the hammer 4 includes an upper hammer 41 and a lower hammer 42, which are connected by bolts for detachment. The lower hammer 42 can be set to different weights. By replacing the lower hammer 42 with a lower hammer 42 of different weights connected to the upper hammer 41, the overall weight of the hammer 4 can be changed, which can improve the applicability of the hammer 4, facilitate transportation, and reduce equipment costs. The top of the upper hammer 41 is provided with a lifting lug for easy gripping by the self-detaching clamp 3. The sides of both the upper hammer 41 and the lower hammer 42 are provided with the sliding groove 43, which is adapted to the slide rail 29. The end of the slide rail 29 extends to the measuring pile hole 10.

[0031] In this embodiment, the guide frame 2 includes a fixed support frame 21 and a flip guide frame 22. The fixed support frame 21 is fixedly installed on the base base 1, and the flip guide frame 22 is hinged to the base base 1 via a mounting seat 23. The flip guide frame 22 has an L-shaped structure. When the flip guide frame 22 is perpendicular to the base base 1, the fixed support frame 21 supports one side of the bottom of the flip guide frame 22. The flip guide frame 22 is provided with a connecting sub-seat 221, and at least one connecting sub-seat 221 is provided at the connection between the flip guide frame 22 and the fixed support frame 21. The fixed support frame 21 is provided with a connecting female seat 211 that mates with the connecting sub-seat 221. The connecting sub-seat 221 and the connecting female seat 211 are locked together by a locking shaft 25.

[0032] When the flipping guide frame 22 flips and is supported above the fixed support frame 21, the connecting sub-base 221 and the connecting female base 211 cooperate. One end of the locking shaft 25 is connected to a hydraulic cylinder 27 through a connector 26. The hydraulic cylinder 27 is an oil cylinder. The hydraulic cylinder 27 is installed on one side of the connecting female base 211 through a fixed seat. The extension of the push rod of the hydraulic cylinder 27 can push the locking shaft 25 into the connecting hole of the connecting sub-base 221 and the connecting female base 211, thereby locking the connecting sub-base 221 and the connecting female base 211.

[0033] To improve the tilting stability of the tilting guide frame 22, tilting hydraulic cylinders 24 are connected to both sides of the tilting guide frame 22, with the ends of the two tilting hydraulic cylinders 24 hinged to the side wall of the base 1. The two ends of each tilting hydraulic cylinder 24 are connected to the tilting guide frame 22 and the base 1 respectively via hydraulic cylinder mounting seats. Each tilting hydraulic cylinder 24 can rotate relative to the base 1. When the tilting guide frame 22 tilts towards the base 1, the tilting hydraulic cylinder 24 tilts synchronously with the tilting guide frame 22, and its push rod retracts during the tilting process. When the tilting guide frame 22 tilts towards the fixed support frame 21, the tilting hydraulic cylinder 24 tilts synchronously with the tilting guide frame 22, and its push rod extends during the tilting process, applying thrust from both sides of the tilting guide frame 22, which helps the tilting guide frame 22 tilt smoothly. In this embodiment, the tilting hydraulic cylinder 24 is preferably a hydraulic cylinder.

[0034] Furthermore, in a preferred embodiment, both sides of the flipping guide frame 22 and the fixed support frame 21 are connected with steel wire ropes 28. When the flipping guide frame 22 flips away from the fixed support frame 21, the fixed support frame 21 pulls the flipping guide frame 22 taut through the steel wire ropes 28, and the two flipping hydraulic cylinders 24 support the flipping guide frame 22 on both sides to prevent the flipping guide frame 22 from crushing the base base 1.

[0035] More specifically, the base 1 includes a slidably connected upper movable seat 11 and a lower movable seat 12. Lifting support arms 13 are connected to both sides of the upper movable seat 11, and a ground pad beam 14 is slidably connected to the bottom of the lower movable seat 12. The relative displacement direction between the lower movable seat 12 and the ground pad beam 14 is perpendicular to the relative displacement direction between the upper movable seat 11 and the lower movable seat 12. Limiting guide blocks 15 connect the upper movable seat 11 and the lower movable seat 12, and the lower movable seat 12 and the ground pad beam 14. Both the upper movable seat 11 and the lower movable seat 12 adopt an internally hollow frame structure, and the ground pad beam 14 is connected to both the front and rear ends of the lower movable seat 12. The limiting guide block 15 can be an "L" shaped plate structure, a "[" shaped plate structure, or an "E" shaped plate structure, connected to the inner and outer sides of the upper moving seat 11 and the lower moving seat 12, and the lower moving seat 12 and the ground pad beam 14. The upper moving seat 11 and the lower moving seat 12 are also connected to a Y-axis automatic push rod 17, and the lower moving seat 12 and the ground pad beam 14 are also connected to an X-axis automatic push rod 16. Under the force of the X-axis automatic push rod 16, the ground pad beam 14 and the lower moving seat 12 can achieve automatic relative sliding; under the force of the Y-axis automatic push rod 17, the upper moving seat 11 and the lower moving seat 12 can achieve automatic relative sliding.

[0036] The lifting support arm 13 includes a telescopic arm 131, the end of which is connected to a lifting arm 132. The lifting arm 132 is a vertically downward-mounted hydraulic cylinder, and a pad can be connected to the bottom of the lifting arm 132. The telescopic arm 131 includes telescopic beams 1311 telescopically mounted on both sides of the upper movable seat 11 and a telescopic push rod 1312 mounted on the upper movable seat 11. The push rod end of the telescopic push rod 1312 is connected to the telescopic beams 1311. The telescopic push rod 1312 can be a pneumatic cylinder, a hydraulic cylinder, or a telescopic push rod; in this embodiment, a hydraulic cylinder is preferred. The telescopic push rod 1312 is used to control the extension and retraction of the telescopic beams 1311. The distance between the lifting support arm 13 and the lower movable seat 12 can be adjusted through the telescopic beams 1311, thereby enabling the pile testing equipment to meet the requirements for testing the bearing capacity of engineering piles in foundation pits of different sizes.

[0037] When the universal platform for high-strain pile self-displacement moves to the right, the lifting arm 132 retracts upward, causing the ground pad beam 14 to contact the ground and the base to bear pressure on the ground. The X-axis automatic push rod 16 extends, pushing the lower moving seat 12 and the upper moving seat 11 to move synchronously to the right along the X-axis. After the lower moving seat 12 stops moving, the lifting arm 132 extends downward, lifting the base. At this time, the ground pad beam 14 is off the ground, and the X-axis automatic push rod 16 retracts and pulls the ground pad beam 14 to move in the displacement direction of the lower moving seat 12. Repeating this action can make the universal platform automatically move to the right.

[0038] When the universal platform for high-strain pile self-displacement moves to the left, the lifting arm 132 extends downward to lift the base. At this time, the ground pad beam 14 is off the ground, and the X-axis automatic push rod 16 extends to push the ground pad beam 14 to move to the left along the X-axis. After the ground pad beam 14 stops moving, the lifting arm 132 retracts upward to make the ground pad beam 14 contact the ground. The base is pressed on the ground, and the X-axis automatic push rod 16 retracts and pulls the lower moving seat 12 and the upper moving seat 11 to move to the left along the X-axis. Repeating this action can make the universal platform automatically move to the left.

[0039] When the universal platform for high-strain pile self-displacement moves forward, the lifting arm 132 retracts upward, causing the ground pad beam 14 to contact the ground and the base to bear pressure on the ground. The Y-axis automatic push rod 17 extends and pushes the upper moving seat 11 to move forward along the Y-axis. After the upper moving seat 11 stops moving, the lifting arm 132 extends downward, causing the ground pad beam 14 to lift off the ground. The Y-axis automatic push rod 17 retracts and pulls the lower moving seat 12 to move in the displacement direction of the upper moving seat 11. Repeating this action can make the universal platform automatically move forward.

[0040] When the universal platform for high-strain pile self-displacement moves backward, the lifting arm 132 extends downward, causing the ground pad beam 14 to lift off the ground. The Y-axis automatic push rod 17 extends, pushing the lower moving seat 12 to move backward along the Y-axis. After the lower moving seat 12 stops moving, the lifting arm 132 retracts upward, causing the ground pad beam 14 to contact the ground. The base rests on the ground, and the Y-axis automatic push rod 17 retracts, pulling the upper moving seat 11 to move in the displacement direction of the lower moving seat 12. Repeating this action allows the universal platform to automatically move backward.

[0041] When the universal platform for high-strain pile self-displacement changes direction, the ground pad beam 14 contacts the ground, and the base rests on the ground. The X-axis automatic push rod 16 located in front of the lower moving seat 12 pushes the lower moving seat 12 and the upper moving seat 11 to move synchronously to the left along the X-axis. Then, the X-axis automatic push rod 16 located behind the lower moving seat 12 drives the lower moving seat 12 and the upper moving seat 11 to move synchronously to the right along the X-axis. Conversely, the X-axis automatic push rod 16 located in front of the lower moving seat 12 pushes the lower moving seat 12 and the upper moving seat 11 to move synchronously to the right along the X-axis. Then, the X-axis automatic push rod 16 located behind the lower moving seat 12 drives the lower moving seat 12 and the upper moving seat 11 to move synchronously to the left along the X-axis. This action is repeated to enable the universal platform to complete a 360-degree turn or change direction.

[0042] The high-strain pile measuring device of this invention can be moved by the guide frame driven by the foundation base to transfer the high-strain pile measuring device to the next measuring point, eliminating the need for a super-large truck crane for transfer, thus making it more adaptable to the site and reducing transfer costs. In addition, the guide frame of this invention is equipped with a slide rail on the inner side. The rise and fall of the hammer is ensured by the cooperation of the slide rail and the slide groove, so as to prevent the hammer from deviating during the rise and fall process, thereby solving the problem of the hammer falling eccentrically and striking the target when it rises and falls.

[0043] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A high-strain pile measuring device, comprising a foundation base (1), a guide frame (2), a self-detaching clamp (3), and a counterweight (4), characterized in that, The base (1) is used to move the guide frame (2). The hammer (4) is suspended inside the guide frame (2) by a self-detaching clamp (3). The self-detaching clamp (3) is connected to the load-bearing fixed beam (20) of the guide frame (2) by an automatic pin device (34). The guide frame (2) is provided with a slide rail (29) on its inner side. The slide rail (29) is slidably engaged with the slide groove (43) of the hammer (4). During testing, the hammer (4) is directly opposite the measuring pile hole (10) of the base (1). The base (1) includes a slidably connected upper moving seat (11) and a lower moving seat (12). The upper moving seat (11) is connected to lifting support arms (13) on both sides. The bottom of the lower moving seat (12) is slidably connected to a ground pad beam (14). The relative displacement direction between the movable seat (12) and the ground pad beam (14) is perpendicular to the relative displacement direction between the upper movable seat (11) and the lower movable seat (12). The upper movable seat (11) and the lower movable seat (12), and the lower movable seat (12) and the ground pad beam (14) are connected by limiting guide blocks (15). The ground pad beam (14) is connected to both the front and rear ends of the lower movable seat (12). The limiting guide blocks (15) are connected to the inner and outer sides of the upper movable seat (11) and the lower movable seat (12), and the lower movable seat (12) and the ground pad beam (14). The upper movable seat (11) and the lower movable seat (12) are also connected by an automatic Y-axis push rod (17), and the lower movable seat (12) and the ground pad beam (14) are also connected by an automatic X-axis push rod (16). Under the force of the automatic push rod (16) on the Y-axis, the ground pad beam (14) and the lower moving seat (12) can automatically slide relative to each other; under the force of the automatic push rod (17) on the Y-axis, the upper moving seat (11) and the lower moving seat (12) can automatically slide relative to each other; the self-detaching clamp (3) includes a lifting beam (31), a boom (32) and a clamp (33), the clamp (33) includes a first clamping arm (332) and a second clamping arm (333) that are cross-hinged, and the first clamping arm (332) and the second clamping arm (333) are respectively hinged to a first connecting rod (334). The ends of the second link (335), the first link (334), and the second link (335) are hinged to the link mounting seats (311) on both sides of the lifting beam (31). Two lifting cylinders (35) are symmetrically supported at both ends of the lifting beam (31). The bottom end of the boom (32) is connected to the hinge point (331) of the clamp (33). The top end of the boom (32) passes through the lifting beam (31). The lifting beam (31) is mounted on the guide frame (2) in a liftable manner. The lifting beam (31) is raised and lowered to realize the opening and closing of the clamp (33).The guide frame (2) includes a fixed support frame (21) and a flipping guide frame (22). The fixed support frame (21) is fixedly installed on the base base (1). The flipping guide frame (22) is hinged to the base base (1) via a mounting seat (23). When the flipping guide frame (22) is perpendicular to the base base (1), the fixed support frame (21) supports the bottom of one side of the flipping guide frame (22). The two sides of the flipping guide frame (22) are connected to flipping hydraulic cylinders (24). The ends of the two flipping hydraulic cylinders (24) are hinged to the side wall of the base base (1). The two ends of the flipping hydraulic cylinders (24) are respectively connected to the flipping guide frame (22) and the base base (1) via hydraulic cylinder mounting seats. The flipping hydraulic cylinders (24) can rotate relative to the base base (1). When the flipping guide frame (22)... When the rotating mechanism flips towards the base (1), the rotating hydraulic cylinder (24) flips synchronously with the rotating guide frame (22). During the flipping process, the push rod of the rotating hydraulic cylinder (24) retracts. When the rotating guide frame (22) flips towards the fixed support frame (21), the rotating hydraulic cylinder (24) flips synchronously with the rotating guide frame (22). During the flipping process, the push rod of the rotating hydraulic cylinder (24) extends, applying thrust from both sides of the rotating guide frame (22).

2. The high-strain pile testing device according to claim 1, characterized in that: The guide frame (2) is provided with lifting slide grooves on both sides. The two ends of the lifting beam (31) extend into the two lifting slide grooves respectively. The two sides of the lifting beam (31) are slidably engaged with the lifting slide grooves through end pulley seats (36). The guide frame (2) is equipped with vertically upward lifting cylinders (35) on both sides. The two lifting cylinders (35) are symmetrically supported at both ends of the lifting beam (31). The lifting beam (31) is driven to slide along the groove direction of the lifting slide groove by the lifting cylinders (35).

3. A high-strain pile measuring device according to any one of claims 1-2, characterized in that: The load-bearing fixed crossbeam (20) is set on the top of the guide frame (2). The boom (32) is provided with no less than two vertically arranged fixing holes (321). The load-bearing fixed crossbeam (20) is provided with a insertion hole (201). The automatic pin device (34) includes a pin (341) that is movably inserted into the insertion hole (201). The pin (341) is connected to a telescopic rod (343) through a connecting plate (342). The telescopic rod (343) is used to drive the pin (341) to extend into or exit the fixing hole (321).

4. The high-strain pile measuring device according to claim 1, characterized in that: The hammer (4) includes an upper hammer (41) and a lower hammer (42), which are detachably connected. The upper hammer (41) and the lower hammer (42) are provided with the groove (43) on their sides.

5. A high-strain pile testing device according to claim 1, characterized in that: Both sides of the flipping guide frame (22) and the fixed support frame (21) are connected with steel wire ropes (28).

6. The high-strain pile testing device according to claim 1, characterized in that: The lifting support arm (13) includes a telescopic arm (131), and the end of the telescopic arm (131) is connected to a lifting arm (132). The telescopic arm (131) includes telescopic beams (1311) that are telescopically arranged on both sides of the upper movable seat (11) and telescopic push rods (1312) installed on the upper movable seat (11). The push rod end of the telescopic push rod (1312) is connected to the telescopic beams (1311).

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