Foundation pile detection auxiliary guiding equipment based on high strain method

Abstract

The invention relates to the technical field of foundation pile detection, in particular to foundation pile detection auxiliary guiding equipment based on a high strain method, which comprises a supporting mechanism, a leveling mechanism and a guiding mechanism, the supporting mechanism comprises a supporting seat, supporting legs and moving wheels; a through hole is formed in the middle of the supporting seat; the leveling mechanism comprises a fixing block, a fastening hoop, a fixing rod, a leveling piece and a foot pad; the foot pad is of a disc-shaped structure and is connected with the fixing rod through the leveling piece. The guide mechanism comprises a calibration disc, a driving lead screw, a guide rod, a driving motor, a guide cylinder and a connecting lug seat; the center of the calibration disc is provided with a cross mark and is connected with the through hole through a connecting structure; the guide cylinder and the calibration disc are coaxially arranged, and the guide cylinder is of a circular structure matched with the impact heavy hammer. The auxiliary guiding device is simple in manufacturing process, high in cost performance, convenient to move and adjust horizontally, capable of guaranteeing the stability of the auxiliary guiding device foundation, capable of saving resources, capable of meeting the requirement for multi-scene and multi-specification foundation pile detection operation and higher in practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of pile foundation detection, and in particular to a pile foundation detection auxiliary guide device based on a high strain method. Background Art

[0002] High strain testing is a method used to evaluate the vertical compressive bearing capacity and pile integrity of a single pile. During the experiment, a heavy hammer is used to impact the top of the pile, and the velocity and force time-history curves at the top of the pile are measured and analyzed through wave theory. Specifically, by applying a high-energy impact to the top of the pile, a large strain is generated, and the bearing capacity and integrity of the pile are evaluated more deeply. This method can detect tiny defects in the pile body, such as cracks, voids, etc. The high strain detection method is suitable for pile foundations that need to detect the integrity of the pile body and verify the bearing capacity of the pile foundation. Its detection results combine the advantages of low strain detection and static load detection. In the process of pile foundation detection in the prior art, a heavy hammer is usually driven by a hanging rope for impact operation, but the movement of the cable and the heavy hammer is uncertain, which can easily lead to a center deviation between the heavy hammer and the pile to be detected, which will lead to a decrease in the detection effect and quality of the pile foundation.

[0003] The known prior art "CN 113404095 B, detection equipment and detection method for high strain of pile foundation" records that the present invention relates to a detection equipment and detection method for high strain of pile foundation, and the detection equipment includes: a force-applying component, which is provided with: a detection weight, a frame, and a lifting device; an auxiliary positioning component, which is sleeved on the outside of the pile to be tested, including a positioning bracket of the pile to be tested and a detection weight guide cylinder arranged above the center of the positioning bracket of the pile to be tested; a sensor component, which is arranged on the pile to be tested, and when the pile to be tested is hit by the detection weight, the force signal and speed signal of the pile to be tested are collected; the detection method includes: pile pretreatment, positioning and installation of the sensor component, self-positioning of the auxiliary positioning component, release of the detection weight by the lifting device, detection and transmission signal of the sensor component, and use of the pile foundation high strain detector to perform actual curve fitting analysis, and finally determine whether the design requirements are met. The present invention adopts the auxiliary positioning component to realize the self-positioning of the drop position of the detection weight, ensure the accuracy of the detection weight, reduce the detection risk, and improve the accuracy of the detection.

[0004] Although the above-mentioned prior art pile detection equipment has solved the auxiliary guiding effect of the falling weight to a certain extent, the positioning structure adjustment is relatively complicated, the manufacturing cost is high, and the structural equipment is bulky and inconvenient to move. The construction of piles is usually in a remote and remote location. At the construction site, it is usually necessary to move the pile detection equipment from one pile to be inspected to the next pile to be inspected. The above-mentioned prior art pile detection equipment is inconvenient to move and cannot perform support and leveling operations, resulting in a decrease in the efficiency of pile detection. At the same time, the above-mentioned prior art pile detection equipment adopts a structure in which the guide cylinder of the detection weight is extended upward. The pile detection of different specifications and models has different vertical compressive bearing capacity standards, that is, the lifting height of the weight is different, so the height of the guide cylinder will also be different. The above-mentioned prior art pile detection equipment uses a single guide cylinder structure, which cannot be applied to the operation requirements of multi-scenario and multi-specification pile detection. If the guide cylinder structure is set too high, it will also cause a waste of resources. At the same time, it is not convenient to carry and is time-consuming and labor-intensive. Summary of the invention

[0005] In order to solve the above-mentioned shortcomings and deficiencies in the use of the prior art pile detection guide structure, the present invention provides a pile detection auxiliary guide device based on the high strain method, which has a reasonable structural design, a simple manufacturing process and a high cost-effectiveness, is easy to move and adjust horizontally to ensure the basic stability of the auxiliary guide equipment, saves resources and can be applied to multiple scenarios and multiple specifications of pile detection operations, improves the auxiliary guidance effect of pile detection and the accuracy of pile detection.

[0006] The present invention adopts the following technical solutions to achieve the above purpose: The cam is an auxiliary guiding device for pile detection based on a high strain method, comprising a supporting mechanism, a leveling mechanism and a guiding mechanism; the supporting mechanism comprises a supporting seat, a supporting leg and a moving wheel; the supporting seat is distributed on the left and right sides, and a through hole is provided in the middle; the supporting leg is distributed vertically and one end is fixedly mounted on the supporting seat by bolts, and the moving wheel is arranged on the supporting leg through a bracket; the leveling mechanism comprises a fixing block, a fixing clamp, a fixing rod, a leveling member and a pad; the fixing block is arranged on the supporting seat, the fixing clamp is arranged on the supporting seat and is located on the inner side of the fixing block, and the cross-section of the fixing clamp is Y-shaped as a whole; in an initial state, one side of the fixing rod is rotatably connected to the fixing block, and the other side is kept clamped with the fixing clamp; the pad is a disc-shaped structure, and is connected to the fixing rod through a leveling member; the guiding mechanism comprises a calibration disk, a driving screw, a guide rod, a driving motor, a guide cylinder, and a connecting ear seat; the center of the calibration disk is There is a cross mark, and it is movably connected with the side wall of the through hole through a connecting structure; the driving screw is vertically distributed and arranged on the support seat, and is relatively rotatable but not relatively movable with the support seat through a bearing; the driving motor is arranged on the bottom end surface of the support seat through a bracket, and the output shaft is connected to the driving screw; the guide rod is vertically distributed and arranged on the support seat, and is symmetrically distributed with the driving screw; the guide cylinder is coaxially arranged with the calibration disk, and the guide cylinder is located above the calibration disk, and the guide cylinder is a circular structure adapted to the impact hammer; the connecting ear seats are two symmetrically distributed on the left and right, and are both arranged on the guide cylinder, and the two are an integrally formed structure; the driving screw passes through the connecting ear seat on the left, and the guide rod passes through the connecting ear seat on the right, and a threaded connection is maintained between the driving screw and the left connecting ear seat, and a sliding connection is maintained between the guide rod and the right connecting ear seat.

[0007] As a preferred technical solution, the movable wheel is a universal wheel with a braking function.

[0008] According to a further preferred technical solution, a limiting plate is further provided on the outside of the fixing block, and the two are fixed by welding connection.

[0009] According to a further preferred technical solution, the support legs and the leveling mechanisms are four sets that are matched, installed and symmetrically distributed.

[0010] A further preferred technical solution is that the leveling part includes a first screw rod, a second screw rod, a rotating sleeve and a bubble level; the top end of the first screw rod is fixedly installed on the fixed rod; the second screw rod is vertically distributed and the bottom end is connected to the foot through a connecting rod; the thread rotation directions of the first screw rod and the second screw rod are opposite; the rotating sleeve is arranged between the first screw rod and the second screw rod, and the three are an integrated structure, so that when the rotating sleeve rotates clockwise, the first screw rod and the second screw rod move away from each other; the bubble level is arranged on the support seat.

[0011] As a preferred technical solution, the calibration disk includes a fixing ring and an indicator disk; the indicator disk can be made of any one of transparent glass and transparent plastic; the inner side wall of the fixing ring and the indicator disk are clamped and installed to form an integral structure.

[0012] A further preferred technical solution is that the connection structure is a plurality of groups evenly distributed in a ring shape, and each group of the connection structure includes a strong magnet mother block and a strong magnet sub-block; the strong magnet mother block is arranged on the inner wall of the through hole, and the strong magnet sub-block is arranged on the outer wall of the fixing ring, and the strong magnet mother block is matched with the strong magnet sub-block and installed.

[0013] A further preferred technical solution is that the driving screw and the guide rod are a set of matching installations; symmetrically distributed reinforcing ribs are also provided on the support seat, and the reinforcing ribs are of L-shaped structure, and the bottom end of the left side reinforcing rib is fixed to the support seat by welding, and the top end is connected to the driving screw by a bearing; the bottom end of the left side reinforcing rib is fixed to the support seat, and the top end is fixed to the top end of the guide rod by welding.

[0014] According to a further preferred technical solution, scale lines are also provided on the guide rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the auxiliary guide device for pile foundation detection has a reasonable structural design. Due to the use of a guide cylinder that can be raised and lowered and has a preset length, the entire structure is relatively short in a contracted state, which saves structural space and is convenient for storage and mobile transportation; the length can be compressed by more than 40% compared with traditional auxiliary guide structures of the same efficiency; compared with ordinary auxiliary guide structures for pile foundation detection with the same efficiency, the number of parts is reduced, and the volume and weight can be reduced by about 30%; at the same time, the auxiliary guide device for pile foundation detection has fewer parts, simple assembly, simplified manufacturing process, and improved dynamic balance of the structure; further, through the use of a support seat, support legs, moving wheels and leveling parts, the auxiliary guide device for pile foundation detection is easy to move, and different pile positions to be inspected at the construction site can be freely switched, and the same The structure has been optimized and upgraded, and the leveling is convenient, which ensures the overall horizontality of the support seat and the calibration plate, providing a strong benchmark for the subsequent impact hammer pile detection guidance and improving the accuracy of pile detection; at the same time, the calibration plate, drive screw, guide rod, drive motor, guide cylinder, and connecting ear seat are further adopted. The movement of the moving wheel and the transparent and marked calibration plate are used to align the center point of the pile to be inspected. The structure is simple and easy to operate, which greatly saves manufacturing costs and saves time and effort; further, the convenient and precise adjustment of the height of the guide cylinder is realized. On the basis of saving resources, it is suitable for the operational needs of multi-scene and multi-specification pile detection, greatly improving the guiding effect of the heavy hammer impacting the pile, further improving the operational efficiency of the pile detection, effectively ensuring the accuracy of the pile detection, and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a front view of the overall structure of the present invention; Figure 3 This is a diagram of the leveling and fixing state of the support base of the present invention; Figure 4 It is a partial structural diagram of the guide mechanism of the present invention; Figure 5 is a three-dimensional diagram of a calibration disk of the present invention; Figure 6 It is a schematic diagram of the connection structure of the calibration disk of the present invention.

[0018] In the figure: 1. supporting mechanism; 11. supporting seat; 12. supporting leg; 13. moving wheel; 14. through hole; 2. leveling mechanism; 21. fixing block; 22. fastening clamp; 23. fixing rod; 24. leveling piece; 241. first screw rod; 242. second screw rod; 243. rotating sleeve; 244. bubble level; 25. foot pad; 26. limit plate; 3. guiding mechanism; 31. calibration disk; 311. cross mark; 312. fixing ring; 313. indicator disk; 32. driving screw; 33. guide rod; 34. driving motor; 35. guide cylinder; 36. connecting ear seat; 37. reinforcing rib; 38. scale line; 4. connecting structure; 41. strong magnet mother block; 42. strong magnet sub-block. DETAILED DESCRIPTION

[0019] 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.

[0020] It should be noted that, in the specific implementation of the present invention, the terms such as "first" and "second" and other relational terms that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms such as "include", "comprise" or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the possible appearance of the sentence "including a ..." and other defined elements does not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "provided with" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] Example 1: Figures 1 to 6 As shown: A pile foundation detection auxiliary guide device based on a high strain method comprises a support mechanism 1, a leveling mechanism 2 and a guide mechanism 3. The pile foundation detection auxiliary guide device has a reasonable structural design. Due to the use of a guide cylinder with a preset length and that can be raised and lowered, the entire structure is relatively short in a contracted state, which saves structural space and is convenient for storage and mobile transportation. Compared with traditional auxiliary guide structures of the same efficiency, the length can be compressed by more than 40%. Compared with ordinary pile foundation detection auxiliary guide structures of the same efficiency, the number of parts is reduced, and the volume and weight can be reduced by about 30%. At the same time, the pile foundation detection auxiliary guide device has fewer parts, simple assembly, simplified manufacturing process, and improved dynamic balance of the structure.

[0023] like Figure 1As shown: In this embodiment, the support mechanism 1 includes a support seat 11, a support leg 12, and a moving wheel 13. The support seat 11 is distributed on the left and right, and a through hole 14 is provided in the middle; the through hole is designed to fit the installation of the calibration plate, and the diameter of the through hole is larger than the outer diameter of the pile to be inspected, so as to facilitate the inspection of the pile by the impact hammer. The support leg 12 is distributed vertically and one end is fixed to the support seat 11 by bolts. The moving wheel 13 is arranged on the support leg 12 through a bracket; the moving wheel 13 adopts a universal wheel with a braking function. Among them, the wheel body diameter of the moving wheel is large enough to adapt to the complex and bumpy pile construction site, so as to ensure the convenience and practicality of the movement of the equipment.

[0024] like Figure 2 As shown: In this embodiment, the leveling mechanism 2 includes a fixed block 21, a fastening clamp 22, a fixed rod 23, a leveling member 24, and a foot 25. The fixed block 21 is arranged on the support seat 11, and the fixed block can be fixedly connected to the support seat by welding. A limit plate 26 is also arranged on the outside of the fixed block 21, and the two are fixed by welding. The purpose of such arrangement is to provide a travel limit when the fixed rod is supported and leveled to ensure the vertical state of the fixed rod. At the same time, preferably, in order to increase the stability of the support of the fixed rod, a fastening bolt can be arranged between the limit plate and the fixed rod. The fastening clamp 22 is arranged on the support seat 11 and is located on the inner side of the fixed block 21. Specifically, the fastening clamp and the fixed block are in the same vertical plane. The purpose of such arrangement is to ensure the stability of the folding, storage and unfolding support of the fixed rod. The cross section of the fastening clamp 22 is Y-shaped as a whole; preferably, the clamping claw of the fastening clamp adopts an open circular ring structure to achieve the fastening effect of the storage and folding of the fixed rod, optimize the structural design, and save space. In a preferred embodiment, the support legs 12 and the leveling mechanism 2 are matched and installed in four groups and symmetrically distributed. In the initial state, one side of the fixing rod 23 is rotatably connected to the fixing block 21, and the other side is kept in clamping connection with the fastening clamp 22. That is, the fixing rod is in a horizontal distribution state at this time. The pad foot 25 is a disc-shaped structure with a sufficiently large outer diameter. The purpose of such a setting is to provide a sufficiently large area of ​​support effect.

[0025] like Figure 3As shown: In this embodiment, the foot 25 is connected to the fixed rod 23 through the leveling member 24. Specifically, the leveling member 24 includes a first screw rod 241, a second screw rod 242, a rotating sleeve 243 and a bubble level 244. The top of the first screw rod 241 is fixedly installed on the fixed rod 23, which can be welded. The second screw rod 242 is vertically distributed and the bottom end is connected to the foot 25 through a connecting rod 27. The connecting rod 27 and the foot 25 can be welded and fixed to maintain an integrated structure. The first screw rod 241 and the second screw rod 242 have opposite thread rotation directions. The rotating sleeve 243 is arranged between the first screw rod 241 and the second screw rod 242, and the three are an integrated structure, so that when the rotating sleeve 243 rotates clockwise, the first screw rod 241 and the second screw rod 242 are separated from each other; when the rotating sleeve 243 rotates counterclockwise, the first screw rod 241 and the second screw rod 242 are close to each other. In this way, the horizontal adjustment of the support base is achieved by adjusting the distributed lengths of the first screw rod and the second screw rod as a whole, and the bubble level 244 is horizontally distributed on the support base 11. In this way, the accuracy of the bubble level varies according to different models and manufacturers. For occasions requiring high-precision measurement, an FSK high-precision level or an RSK level can be selected; and for occasions with general accuracy requirements, other general accuracy levels can be selected. In this embodiment, considering the cost-effectiveness and use requirements of the component structure, a general accuracy level can be used.

[0026] like Figure 1 and Figure 4 As shown in the figure: In this embodiment, the guide mechanism 3 includes a calibration plate 31, a drive screw 32, a guide rod 33, a drive motor 34, a guide cylinder 35, and a connecting ear seat 36. Figure 5As shown: a cross mark 311 is provided at the center of the calibration disk 31, and is movably connected to the side wall of the through hole 14 through the connecting structure 4. The calibration disk 31 includes a fixing ring 312 and an indicator disk 313; the indicator disk 313 can be made of any one of transparent glass and transparent plastic. The cross mark can adopt a common cross indicator structure or a cross light strip structure. The inner wall of the fixing ring 312 is clamped and installed with the indicator disk 313, and the two form an integral structure. The purpose of such a setting is to facilitate the alignment with the center of the pile to be measured. In the initial state, the calibration disk is installed at the through hole of the support seat, and the cross mark in the center of the calibration disk is adjusted by moving the moving wheel left, right, forward and backward to form a reference and actual comparison relationship with the cross mark and the like set on the pile to be measured. After the cross mark of the calibration disk is calibrated with the center of the pile to be measured, the extension of the support leg is started. The first screw rod 241, the second screw rod 242, the rotating sleeve 243 and the bubble level 244 cooperate with the leveling structure to complete the horizontal adjustment of the support seat, and always keep the cross mark and the center of the pile to be tested in correspondence. The auxiliary guide device for pile detection has a reasonable structural design, a simple manufacturing process, and greatly reduces the cost. At the same time, it saves resources and can be applied to pile detection operations in multiple scenarios and specifications, greatly improving the auxiliary guide effect and accuracy of pile detection.

[0027] like Figure 4 As shown: wherein the driving screw 32 is vertically distributed and arranged on the support seat 11, and is relatively rotatable and non-movable with the support seat 11 by means of a bearing. The driving motor 34 is arranged on the bottom surface of the support seat 11 through a bracket, and the output shaft is connected to the driving screw 32; the driving motor adopts a servo control motor. wherein the guide rod 33 is vertically distributed and arranged on the support seat 11, and is symmetrically distributed with the driving screw 32; the guide cylinder 35 is coaxially arranged with the calibration disk 31, and the guide cylinder 35 is located above the calibration disk 31, and the cross section of the guide cylinder 35 is a circular structure adapted to the impact hammer; it is convenient to realize efficient pile foundation detection operation after forming precise guide auxiliary adjustment. The two connecting ears 36 are symmetrically distributed on the left and right, and are both arranged on the guide cylinder 35, and the two are an integrally formed structure; the driving screw 32 passes through the left connecting ear 36, and the guide rod 33 passes through the right connecting ear 36, and the driving screw 32 maintains a threaded connection with the left connecting ear 36, and the guide rod 33 maintains a sliding connection with the right connecting ear 36. A scale line 38 is also provided on the guide rod 33, so that a clear scale indication is formed, which is used to clearly observe the lifting and lowering adjustment of the height of the guide cylinder.

[0028] During lifting operation: When the drive motor starts to rotate forward, it will synchronously drive the drive screw to rotate clockwise, forming a "screw nut structure" between the drive screw and the corresponding connecting ear seat, and then with the cooperation of the auxiliary guide between the guide rod on the other side and the corresponding connecting ear seat, it will drive the connecting ear seat and the guide cylinder to move up to the preset height as a whole. When the drive motor starts to reverse, it will synchronously drive the drive screw to rotate counterclockwise, and will drive the connecting ear seat and the guide cylinder to move down to the preset height as a whole.

[0029] like Figure 1 As shown: In this embodiment, the driving screw 32 and the guide rod 33 are a set of matching installations. The support seat 11 is also provided with symmetrically distributed reinforcing ribs 37, which are L-shaped structures, and the bottom end of the left reinforcing rib 37 is fixed to the support seat 11 by welding, and the top end is connected to the driving screw 32 by a bearing; the bottom end of the left reinforcing rib 37 is fixed to the support seat 11, and the top end is fixed to the top end of the guide rod 33 by welding. Such a setting has a simple structure, low manufacturing cost, good support effect, and at the same time, on the basis of ensuring sufficient stability, it improves the stability of the guide cylinder moving and lifting.

[0030] Example 2: Figure 1 and Figure 6 As shown: On the basis of Example 1, a foundation pile detection auxiliary guide device based on the high strain method also includes: the connection structure 4 is a plurality of groups evenly distributed in an annular shape, and each group of the connection structure 4 includes a strong magnet master block 41 and a strong magnet sub-block 42. The strong magnet master block 41 is arranged on the inner wall of the through hole 14, and the strong magnet sub-block 42 is arranged on the outer wall of the fixing ring 312. The strong magnet master block 41 and the strong magnet sub-block 42 are matched and installed. The purpose of such a setting is to adopt a cost-effective, stable and conveniently disassembled method to achieve the connection between the calibration disk and the support seat, simplify the manufacturing process, and be more practical.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pile foundation detection auxiliary guide device based on high strain method, characterized in that: The invention comprises a support mechanism (1), a leveling mechanism (2) and a guide mechanism (3); the support mechanism (1) comprises a support seat (11), a support leg (12) and a moving wheel (13); the support seat (11) is distributed on the left and right, and a through hole (14) is provided in the middle; the support leg (12) is distributed vertically and one end is fixedly mounted on the support seat (11) by bolts, and the moving wheel (13) is arranged on the support leg (12) by a bracket; the leveling mechanism (2) comprises a fixing block (21), a fixing clamp (22), a fixing rod (23), a leveling member (24) and a pad (25); the fixing block (21) is arranged on the support The support base (11) comprises a fixing clamp (22) disposed on the support base (11) and located on the inner side of the fixing block (21); the cross section of the fixing clamp (22) is Y-shaped as a whole; in an initial state, one side of the fixing rod (23) is rotatably connected to the fixing block (21) and the other side is kept in clamping connection with the fixing clamp (22); the pad (25) is a disc-shaped structure and is connected to the fixing rod (23) through the leveling member (24); the guide mechanism (3) comprises a calibration disk (31), a driving screw (32), a guide rod (33), a driving motor (34), a guide cylinder (35), and a connecting ear seat (36); The calibration disk (31) is provided with a cross mark (311) at the center and is movably connected to the side wall of the through hole (14) via a connecting structure (4); the driving screw (32) is vertically arranged on the support seat (11) and is relatively rotatable but not movable relative to the support seat (11) via a bearing; the driving motor (34) is arranged on the bottom end surface of the support seat (11) via a bracket, and the output shaft is connected to the driving screw (32); the guide rod (33) is vertically arranged on the support seat (11) and is symmetrically distributed with the driving screw (32); the guide cylinder (35) The guide cylinder (35) is coaxially arranged with the calibration disk (31), and is located above the calibration disk (31). The guide cylinder (35) is a circular structure adapted to fit the impact hammer. The connecting ear seats (36) are two symmetrically distributed on the left and right, and are both arranged on the guide cylinder (35). The two are an integrally formed structure. The driving screw (32) passes through the connecting ear seat (36) on the left, and the guide rod (33) passes through the connecting ear seat (36) on the right. The driving screw (32) and the connecting ear seat (36) on the left are threadedly connected, and the guide rod (33) and the connecting ear seat (36) on the right are slidably connected.

2. The auxiliary guiding device for pile detection based on high strain method according to claim 1, characterized in that: The movable wheel (13) is a universal wheel with a braking function.

3. The auxiliary guiding device for pile detection based on high strain method as claimed in claim 2, characterized in that: A limiting plate (26) is also provided on the outside of the fixing block (21), and the two are connected and fixed by welding.

4. The auxiliary guiding device for pile detection based on high strain method as claimed in claim 3, characterized in that: The support legs (12) and the leveling mechanisms (2) are four sets that are matched, installed and symmetrically distributed.

5. The auxiliary guiding device for pile detection based on high strain method as claimed in claim 4, characterized in that: The leveling member (24) comprises a first screw rod (241), a second screw rod (242), a rotating sleeve (243) and a bubble level (244); the top end of the first screw rod (241) is fixedly mounted on the fixed rod (23); the second screw rod (242) is vertically distributed and the bottom end is connected to the pad foot (25) via a connecting rod (27); the first screw rod (241) and the second screw rod (242) have opposite screw thread directions; the rotating sleeve (243) is arranged between the first screw rod (241) and the second screw rod (242), and the three are an integrated structure, so that when the rotating sleeve (243) rotates clockwise, the first screw rod (241) and the second screw rod (242) move away from each other; the bubble level (244) is horizontally distributed and arranged on the support seat (11).

6. The auxiliary guiding device for pile detection based on high strain method according to claim 1, characterized in that: The calibration disk (31) comprises a fixing ring (312) and an indicator disk (313); the indicator disk (313) can be made of any one of transparent glass and transparent plastic; the inner side wall of the fixing ring (312) and the indicator disk (313) are clamped and installed, and the two form an integral structure.

7. The auxiliary guiding device for pile detection based on high strain method according to claim 6, characterized in that: The connection structures (4) are multiple groups evenly distributed in a ring shape, and each group of the connection structures (4) comprises a strong magnet mother block (41) and a strong magnet sub-block (42); the strong magnet mother block (41) is arranged on the inner wall of the through hole (14), and the strong magnet sub-block (42) is arranged on the outer wall of the fixing ring (312); the strong magnet mother block (41) and the strong magnet sub-block (42) are matched and installed.

8. The auxiliary guiding device for pile detection based on high strain method according to claim 7, characterized in that: The driving screw (32) and the guide rod (33) are a set of matching installations; symmetrically distributed reinforcing ribs (37) are also provided on the support seat (11); the reinforcing ribs (37) are L-shaped structures, and the bottom end of the left reinforcing rib (37) is connected and fixed to the support seat (11) by welding, and the top end is connected to the driving screw (32) by a bearing; the bottom end of the left reinforcing rib (37) is connected to the support seat (11), and the top end is connected to the top end of the guide rod (33) by welding.

9. The auxiliary guiding device for pile detection based on high strain method according to claim 8, characterized in that: The guide rod (33) is also provided with scale lines (38).

Images