Aperture detection device for engineering detection supervision

Abstract

The invention relates to the technical field of constructional engineering, in particular to an aperture detection device for engineering detection supervision, which comprises a detection frame, a moving assembly is mounted in the middle of the detection frame, a detection assembly is mounted at the bottom of the detection frame, and the detection assembly is connected with the moving assembly. According to the actual operation process, the moving assembly can be arranged to be a second lead screw, the second lead screw is matched with a rolling shaft sleeve, a third motor drives the rolling shaft sleeve through a second belt, the rolling shaft sleeve rotates, the second lead screw is driven to move up and down through rotation, and the detection assembly is driven to conduct up-and-down detection; and meanwhile, in the process of placing the detection frame, the whole device does not need to be lifted to be very high for placing detection, a second screw rod can be moved upwards, and the surface for placing and clamping is contracted, so that the detection frame can be more conveniently placed on the top of the pile hole for fixed testing.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to an aperture detection device for engineering inspection and supervision. Background Technology

[0002] Construction supervision refers to a professional service activity in which qualified supervision units, entrusted by the client, monitor the construction work of the contractor on behalf of the client, based on nationally approved project construction documents, relevant laws and regulations, construction supervision contracts, and other construction contracts. Construction supervision is a paid engineering consulting service; it is commissioned by the client; the main basis for supervision is laws, regulations, technical standards, relevant contracts and documents; the principles of supervision are legality, integrity, impartiality, and scientific rigor; the purpose of supervision is to ensure the quality and safety of construction projects, improve the level of construction, and maximize investment returns.

[0003] In building construction inspection, the quality inspection of pile foundation boreholes is an important component. Whether the diameter of the pile hole is uniform from top to bottom and meets the design requirements, and whether the pile hole is a standard cylinder as designed, directly affects the mechanical properties of the pile foundation after the subsequent concrete pouring. The pile diameter meeting the design requirements is one of the important parameters to ensure the safety of the building structure. Therefore, the inspection of pile hole diameter is particularly important. However, due to geological and other issues, the existing testing equipment is difficult to fix, which makes the testing unstable and leads to large errors in the test data. Summary of the Invention

[0004] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an aperture detection device for engineering inspection and supervision to solve the existing problems.

[0006] To achieve the above objectives, the technical solution of the present invention is: an aperture detection device for engineering inspection and supervision, comprising a detection frame, a movable component installed in the middle of the detection frame, a detection component installed at the bottom of the detection frame, the detection component being connected to the movable component, the detection component including a connecting frame, a plurality of first electric push rods installed within the connecting frame, the first electric push rods being supported and installed by a fixing frame, the first electric push rods being installed at the four corners of the connecting frame, a first measuring block being installed at the output end of the first electric push rod, a position sensor being built into the first electric push rod, the contact surface of the first measuring block being arc-shaped, the bottom of the detection frame having first sliding grooves arranged in a cross shape, a first lead screw being installed in each of the first sliding grooves, a first motor being installed at one end of each of the first lead screws, the first motor being installed in a first mounting groove at one end of the first sliding groove, a fixing block being installed on the first lead screw, the clamping surface of the fixing block being arc-shaped.

[0007] In some embodiments, the moving component includes a second lead screw, on which a roller sleeve is also mounted, and a second belt is provided on the roller sleeve. The second belt is connected to a third motor, which is mounted on the bracket. The second lead screw passes through the detection frame and is connected to the connecting frame. A protective shell is provided outside the second lead screw, and a slide rail is provided inside the protective shell. The second lead screw is located in the slide rail, and a limiting block is provided at the top of the second lead screw to limit the second lead screw from sliding to the bottom of the slide rail.

[0008] In some embodiments, a spline sleeve is installed on the second lead screw, and a second slide groove is provided on the second lead screw that is slidably connected to the spline sleeve. A first belt is provided on the spline sleeve, and a second motor is connected to the first belt. The second motor is installed on the bracket of the detection frame.

[0009] In some embodiments, a connector is installed between the first measuring block and the first electric push rod. The connector includes a connecting housing, in which a pressure sensor is installed. A movable rod is provided on the end face of the connecting housing. One end of the movable rod is connected to the first measuring block. A spring is provided between the movable rod and the pressure sensor.

[0010] In some embodiments, the fixing block includes a connecting block and a rotating block. The connecting block is connected to the first lead screw, and the rotating block is installed on the bottom of the connecting block by bolts. The rotating block has an arc-shaped surface and a flat surface on its two sides, and both sides of the rotating block are provided with rubber pads.

[0011] In some embodiments, the connecting frame is provided with a second mounting groove on all four sides, a second measuring plate is installed in the second mounting groove, the second measuring plate is connected to a second electric push rod on which a displacement sensor is installed, and the clamping surface of the second measuring plate is set in a horizontal plane.

[0012] In some embodiments, a third mounting groove is provided on the clamping surface of the second measuring plate, and a rolling shaft is installed in the third mounting groove.

[0013] In some embodiments, a plurality of hydraulic cylinders are provided on the top of the testing frame, the hydraulic cylinders are installed at the four corners of the testing frame, and the output end of the hydraulic cylinders is equipped with a support assembly.

[0014] In some embodiments, the support assembly includes a support plate with a placement groove at the bottom and mounting holes on both sides of the placement groove. A roller is provided in the placement groove and is installed by inserting a pin into the mounting hole. An anti-slip pad is provided at the bottom of the support plate.

[0015] In some embodiments, a connecting pipe is provided between the connecting frame and the second lead screw. A first bearing and a second bearing are provided inside the connecting pipe. The connecting frame is connected to the first bearing via a connecting rod. The second lead screw is connected to the second bearing. A connecting groove is provided at the opposite end of the connecting rod and the second lead screw. S-class and N-class magnets are alternately installed in the groove wall. An insertion block is provided at the opposite end of the second lead screw and the connecting rod. The outer wall of the insertion block is equipped with alternately installed S-class and N-class magnets, which are alternately corresponding to the magnets on the groove wall of the connecting groove.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are: The first motor drives the first lead screw in the first slide groove, which in turn moves the fixing blocks closer together to facilitate their placement into the pile hole. Then, the first motor drives the first lead screw again to move the fixing blocks further apart, allowing them to adhere to the inner wall of the pile hole. This causes a slight movement of the detection frame, positioning the detection component in the center of the pile hole. The moving component is then activated to lower the detection component for measurement along the path. The measured data is transmitted to the terminal using existing remote transmission technologies such as the built-in wireless module, providing effective real-time feedback. During the measurement process, the first electric push rod can be activated to move the first measuring block to adhere to the inner wall of the pile hole. The position sensor installed in the first electric push rod then feeds back the movement distance data to the terminal for accurate measurement along the path. The arc-shaped contact surface of the first measuring block is designed for better fit to the cylindrical pile hole.

[0017] Based on the actual operation process, the moving component can be set up with a second lead screw. The second lead screw works in conjunction with a roller sleeve, and the third motor drives the roller sleeve through the second belt, causing the roller sleeve to rotate. This rotation drives the second lead screw to move up and down, thereby moving the detection component to perform up and down detection. At the same time, during the placement of the detection frame, it is not necessary to raise the entire device very high for placement and testing. The second lead screw can be moved upward, causing the clamping side to retract, which makes it easier to place the detection frame on the top of the pile hole for fixed testing.

[0018] Depending on the actual situation, an additional spline sleeve can be added, which is then installed on the second lead screw. The second lead screw is fitted with a second sliding groove, allowing it to move up and down on the spline sleeve. Simultaneously, a second motor drives the spline sleeve via a first belt. The ball bearings inside the spline sleeve engage with the second sliding groove, causing the second lead screw to rotate. This, in turn, drives the detection component to rotate, thus comprehensively detecting whether the bore diameters of the cylindrical inner wall are consistent.

[0019] During the detection of rotation or vertical movement, if there are depressions or protrusions inside the pile hole, the first measuring block can be pushed and contracted by a spring when it comes into contact with the depression or protrusion. Then, the pressure sensor is pressed by the inner end of the spring. The pressure sensor senses the pressure, and according to Hooke's Law ΔF = kΔx, the compression deformation of the spring can be calculated, thereby calculating the distance to detect the protrusion or depression for effective handling. At the same time, it can also ensure that the first measuring block is stuck during the movement.

[0020] During on-site testing, there are both cylindrical and square pile holes. Therefore, the rotating block and connecting block can be separated by rotating bolts. Then, the flat surface of the rotating block is used as the clamping surface. After being fixed with bolts, the flat surface can be used to clamp the square pile hole, so that the testing component is located in the middle of the pile hole. During the testing process, the spline sleeve can be used to drive the second lead screw to rotate, so that the first measuring block is aligned with the four walls of the square pile hole for vertical measurement. A camera can also be installed on the testing component to observe whether the rotation angle is correct. The rubber pad is mainly to make the clamping fit better and increase stability.

[0021] When the detection component rotates and encounters significant deformation within the pile hole, the second lead screw may become stuck, potentially damaging the motor or the detection component itself. To address this, a connecting groove is installed on the connecting rod, allowing the insertion block to be inserted into the groove. Utilizing the properties of a magnet, the connecting frame can be rotated within the first bearing, thus achieving the rotation detection function. Simultaneously, it ensures that in the event of a jam, only the second lead screw rotates, while the connecting frame remains stationary, preventing the risk of damage caused by forced rotation of the motor or connecting frame.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0023] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0024] To make the above and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the detection device according to some embodiments of the present invention; Figure 2 This is a schematic diagram of the detection components and the bottom of the detection device according to some embodiments of the present invention; Figure 3 This is a schematic diagram of the first lead screw installation structure according to some embodiments of the present invention; Figure 4 This is a schematic diagram of the structure of the connector in some embodiments of the present invention; Figure 5 This is a schematic diagram of the internal structure of the connecting pipe according to some embodiments of the present invention; Figure 6 This is a schematic diagram of the slide rail structure in the protective housing of some embodiments of the present invention.

[0029] Explanation of reference numerals in the attached figures: 1. Testing frame; 11. First slide rail; 12. First lead screw; 13. First motor; 14. First mounting slot; 15. Fixing block; 151. Connecting block; 152. Rotating block; 153. Bolt; 154. Rubber pad; 2. Moving component; 21. Second lead screw; 211. Second slide rail; 212. Limiting block; 22. Spline sleeve; 23. First belt; 24. Second motor; 25. Second belt; 26. Third motor; 27. Protective housing; 28. Slide rail; 29. ​​Roller sleeve; 3. Detection assembly; 31. Connecting frame; 311. Second mounting slot; 312. Second measuring plate; 313. Second electric push rod; 314. Third mounting slot; 315. Rolling shaft; 32. First electric push rod; 33. First measuring block; 34. Fixing frame; 4. Bracket; 5. Connector; 51. Connecting housing; 52. Pressure sensor; 53. Moving rod; 54. Spring; 6. Hydraulic cylinder; 61. Support assembly; 611. Support plate; 612. Placement slot; 613. Mounting hole; 614. Roller; 615. Pin; 616. Anti-slip pad; 7. Connecting pipe; 71. First bearing; 72. Second bearing; 73. Connecting rod; 74. Connecting groove; 75. Insertion block. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0031] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" 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 limitations on this invention.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0035] Reference Figure 1 and Figure 2 This invention provides an aperture detection device for engineering inspection and supervision, including a detection frame 1, a moving component 2 installed in the middle of the detection frame 1, and a detection component 3 installed at the bottom of the detection frame 1. The detection component 3 is connected to the moving component 2. The detection component 3 includes a connecting frame 31, and a plurality of first electric push rods 32 are installed in the connecting frame 31. The first electric push rods 32 are supported and installed by a fixing frame 34. The first electric push rods 32 are installed at the four corners of the connecting frame 31. A first measuring block 33 is installed at the output end of the first electric push rod 32. The first electric push rod 32 has a built-in position sensor. The contact surface of the first measuring block 33 is set with an arc shape. The bottom of the detection frame 1 is provided with first sliding grooves 11 arranged in a cross shape. A first lead screw 12 is installed in each of the first sliding grooves 11. A first motor 13 is installed at one end of each of the first lead screws 12. The first motor 13 is installed in a first mounting groove 14 at one end of the first sliding groove 11. A fixing block 15 is installed on the first lead screw 12. The clamping surface of the fixing block 15 is set with an arc shape.

[0036] Specifically, the testing frame 1 is placed on the top of the pile hole where the diameter needs to be measured. Simultaneously, the first motor 13 drives the first lead screw 12 in the first sliding groove 11, causing the fixing blocks 15 to move closer together, facilitating their insertion into the pile hole. Then, the first motor 13 drives the first lead screw 12 to move the fixing blocks 15 further apart, allowing them to adhere to the inner wall of the pile hole. This causes the testing frame 1 to move slightly, positioning the testing assembly 3 in the center of the pile hole. Finally, the moving assembly 2 is activated to lower the testing assembly 3. The measurement is carried out along the route, and the measurement data is transmitted to the terminal using existing remote transmission technologies such as the built-in wireless module. The measurement data is effectively fed back in real time. During the measurement process, the first electric push rod 32 can be activated to drive the first measuring block 33 to fit against the inner wall of the pile hole. Then, the position sensor installed in the first electric push rod 32 feeds back the movement distance data to the terminal for accurate measurement along the route. The contact surface of the first measuring block 33 is set to be arc-shaped to better fit the cylindrical pile hole.

[0037] In addition, the first sliding groove at the bottom of the testing frame is arranged in a "cross" (rather than a "straight line"), which allows the four fixing blocks to clamp the inner wall of the pile hole from "four directions": front, back, left, and right. Compared with the "straight line" (clamping only left and right or front and back), the neutrality error is reduced by more than 50%, which is especially suitable for fixing "non-circular pile holes" (such as elliptical pile holes) and ensures that the testing components are always in the center of the hole.

[0038] The testing frame 1 is equipped with a power controller and other devices for power supply and control (not shown in the figure). This is an existing technology connection and control system, which will not be described in detail here.

[0039] Reference Figure 1-3 According to some embodiments of the present invention, optionally, the moving component 2 includes a second lead screw 21, on which a roller sleeve 29 is also mounted, and a second belt 25 is provided on the roller sleeve 29. The second belt 25 is connected to a third motor 26, which is mounted on the bracket 4. The second lead screw 21 passes through the detection frame 1 and is connected to the connecting frame 31. The second lead screw 21 is provided with a protective shell 27, and a slide rail 28 is provided inside the protective shell 27. The second lead screw 21 is located in the slide rail 28. A limiting block 212 is provided at the top of the second lead screw 21 to limit the second lead screw 21 from sliding to the bottom of the slide rail 28.

[0040] According to the actual operation process, the moving component 2 can be set to use the second lead screw 21. The second lead screw 21 cooperates with the roller sleeve 29, and the third motor 26 drives the roller sleeve 29 through the second belt 25 to rotate the roller sleeve 29. The rotation drives the second lead screw 21 to move up and down, thereby driving the detection component 3 to perform up and down detection. At the same time, in the process of placing the detection frame 1, it is not necessary to raise the entire device very high for placement and detection. The second lead screw 21 can be moved upward to retract the clamping side, which makes it easier to place the detection frame 1 on the top of the pile hole for fixed testing.

[0041] Reference Figure 3 According to some embodiments of the present invention, optionally, a spline sleeve 22 is installed on the second lead screw 21, and a second slide groove 211 is provided on the second lead screw 21 to be slidably connected to the spline sleeve 22. A first belt 23 is provided on the spline sleeve 22, and a second motor 24 is connected to the first belt 23. The second motor 24 is installed on the bracket 4 of the detection frame 1.

[0042] Then, depending on the actual situation, a spline sleeve 22 can be added, which is installed on the second lead screw 21. The second lead screw 21 is installed in conjunction with the second sliding groove 211 provided on the second lead screw 21, so that the second lead screw 21 can move up and down on the spline sleeve 22. At the same time, the second motor 24 drives the spline sleeve 22 through the first belt 23. The ball bearings inside the spline sleeve 22 are locked in the second sliding groove 211 to drive the second lead screw 21 to rotate. The second lead screw 21 drives the detection component 3 to rotate, so as to detect whether the diameter of the inner wall of the cylinder is consistent from all aspects.

[0043] It is worth noting that the second groove 211 is formed on the second lead screw 21. Its function is to cooperate with the spline sleeve 22 to realize the rotation drive of the second lead screw 21, while allowing the second lead screw 21 to slide along the axial direction of the spline sleeve 22. The roller sleeve 29 is sleeved on the outside of the second lead screw 21 and forms a threaded engagement with the second lead screw 21. It is only used to drive the second lead screw 21 to move up and down and does not participate in the rotational transmission. Therefore, the second groove 211 only passes through the roller sleeve 29 and does not need to be directly connected to the roller sleeve 29 in terms of structure.

[0044] Reference Figure 1 , Figure 2 , Figure 4 as well as Figure 6 According to some embodiments of the present invention, optionally, a connector 5 is installed between the first measuring block 33 and the first electric push rod 32. The connector 5 includes a connecting housing 51, in which a pressure sensor 52 is installed. A moving rod 53 is provided on the end face of the connecting housing 51. One end of the moving rod 53 is connected to the first measuring block 33. A spring 54 is provided between the moving rod 53 and the pressure sensor 52.

[0045] Considering that during the detection of rotation or vertical movement, if there are depressions or protrusions inside the pile hole, when the first measuring block 33 contacts the depression or protrusion, the spring 54 can push and retract the first measuring block 33. Then, the pressure sensor 52 is pressed by the inner end of the spring 54. The pressure sensor 52 senses the pressure, and according to Hooke's Law ΔF=kΔx, the compression deformation of the spring 54 can be calculated, thereby calculating the distance to detect the protrusion or depression, so as to effectively handle the situation. At the same time, it can also ensure that the first measuring block 33 is stuck during the movement.

[0046] In addition, when encountering a protruding piece of gravel, if there is a protruding piece of gravel (height > 10mm) in the pile hole, before the detection component descends, the first electric push rod 32 must be extended to 80% of its maximum stroke (to avoid the measuring block directly hitting the gravel). If the pressure sensor 52 detects an instantaneous pressure > 100N during the descent, the motor will automatically stop, and the gravel must be manually cleaned before continuing the detection.

[0047] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, optionally, the fixing block 15 includes a connecting block 151 and a rotating block 152. The connecting block 151 is connected to the first lead screw 12. The rotating block 152 is installed on the bottom of the connecting block 151 by bolts 153. The two sides of the rotating block 152 are respectively an arc-shaped surface and a flat surface, and both sides of the rotating block 152 are provided with rubber pads 154.

[0048] During on-site testing, there are both cylindrical and square pile holes. Therefore, the rotating block 152 and the connecting block 151 can be separated by rotating bolt 153. Then, the flat surface of the rotating block 152 is used as the clamping surface. After being fixed with bolt 153, the flat surface can be used to clamp the square pile hole, so that the detection component 3 is located in the middle of the pile hole. During the testing process, the spline sleeve can be used to drive the second lead screw 21 to rotate, so that the first measuring block 33 is aligned with the four walls of the square pile hole for up and down measurement. A camera can also be installed on the detection component 3 to observe whether the rotation angle is correct. The rubber pad 154 is mainly to make the clamping fit better and increase stability.

[0049] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, optionally, the connecting frame 31 is provided with a second mounting groove 311 on all four sides, a second measuring plate 312 is installed in the second mounting groove 311, the second measuring plate 312 is connected to a second electric push rod 313 on which a displacement sensor is installed, and the clamping surface of the second measuring plate 312 is set in a horizontal plane.

[0050] To avoid incorrect rotation angles, an additional measuring assembly can be added. A second measuring plate 312 is set around the square connecting frame 31, and a second electric push rod 313 is used to push the second measuring plate 312 for detection. This eliminates the need to rotate to adjust the direction of the first measuring block 33. The measurement can be divided into two groups: one for cylindrical pile holes and one for square pile holes. At the same time, the second measuring plate 312 and the second electric push rod 313 are also connected by the same connecting piece 5 as the first measuring block 33 and the first electric push rod 32 for measurement. The details will not be described further. In addition, when detecting square pile holes, there is no need to rotate for measurement. The second measuring plate 312 of the same length can be replaced. After the measurement is completed, the plate can be disassembled.

[0051] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, optionally, a third mounting groove 314 is provided on the clamping surface of the second measuring plate 312, and a rolling shaft 315 is installed in the third mounting groove 314.

[0052] This design allows the contact surface of the second measuring plate 312 to move smoothly up and down with reduced friction during the movement. Furthermore, the rolling shaft 315 of the clamping surface of the second measuring plate (installed in the second mounting groove) is made of polyurethane instead of metal. This avoids scratching the inner wall of the square pile hole with a metal rolling shaft (affecting the subsequent pouring quality) and reduces sliding friction (the rolling friction coefficient is only 1 / 10 of that of sliding friction), making the up and down movement of the detection component smoother and reducing the load on the second electric push rod 313. It can be replaced after long-term use.

[0053] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, optionally, a plurality of hydraulic cylinders 6 are provided on the top of the testing frame 1, the hydraulic cylinders 6 are installed at the four corners of the testing frame 1, and the output end of the hydraulic cylinders 6 is equipped with a support assembly 61.

[0054] In practical applications, although the testing frame 1 is clamped by the fixing block 15, in order to ensure that the testing frame 1 has stable support, the support component 61 can be lowered by the hydraulic cylinder 6 to provide effective support to the ground. At the same time, after the test is completed, the testing frame 1 can be raised by the hydraulic cylinder 6 to separate it from the pile hole.

[0055] Reference Figure 1 and Figure 2According to some embodiments of the present invention, optionally, the support assembly 61 includes a support plate 611, the bottom of the support plate 611 is provided with a placement groove 612, the two sides of the placement groove 612 are provided with mounting holes 613, a roller 614 is provided in the placement groove 612, the roller 614 is installed by inserting a pin 615 into the mounting hole 613, and the bottom of the support plate 611 is provided with an anti-slip pad 616.

[0056] To facilitate transportation, rollers 614 can be installed under the support plate 611 using pins 615. Then, hydraulic cylinder 6 can be used as a temporary support 4 to move the testing device. After the testing frame 1 is placed in the pile hole, hydraulic cylinder 6 can be retracted to remove rollers 614 from the support plate 611. Then, hydraulic cylinder 6 can be used to support the device through the support plate 611.

[0057] In addition, if the ground tilt angle is ≤5°, the hydraulic cylinder 6 can be independently raised and lowered. The extension length of the four hydraulic cylinders 6 is controlled by the terminal to keep the test frame 1 horizontal. The data is fed back by the level instrument (not shown in the figure) installed on the top of the test frame 1 to avoid the test components from shifting due to the tilt of the frame.

[0058] Reference Figure 5 According to some embodiments of the present invention, optionally, a connecting pipe 7 is provided between the connecting frame 31 and the second lead screw 21. The connecting pipe 7 is provided with a first bearing 71 and a second bearing 72. The connecting frame 31 is connected to the first bearing 71 through a connecting rod 73. The second lead screw 21 is connected to the second bearing 72. A connecting groove 74 is provided at one end of the connecting rod 73 opposite to the second lead screw 21. S-class and N-class magnets are alternately installed in the groove wall of the connecting groove 74. An insertion block 75 is provided at one end of the second lead screw 21 opposite to the connecting rod 73. The outer wall of the insertion block 75 is equipped with alternately installed S-class and N-class magnets, which are alternately corresponding to the magnets on the groove wall of the connecting groove 74.

[0059] To prevent the second lead screw 21 from jamming when the detection component 3 encounters large deformation within the pile hole during rotation, which could damage the motor or the detection component 3, a connecting groove 74 can be provided on the connecting rod 73. The insertion block 75 is inserted into the connecting groove 74, and the magnetic properties can be used to drive the connecting frame 31 to rotate in the first bearing 71, thus achieving the rotation detection function. At the same time, it can be ensured that in the event of jamming, only the second lead screw 21 rotates, while the connecting frame 31 cannot rotate, preventing the risk of damage to the motor or the connecting frame 31 due to forced rotation.

[0060] Finally, it should be noted that the position sensor (which can be a linear displacement sensor) of the first electric push rod 32 has a sampling frequency of 10Hz, that is, it collects data 10 times per second. This ensures that when the detection component 3 moves up and down (speed ≤ 1m / min), at least 1-2 sets of data are collected per centimeter of travel to avoid missed detections. The pressure sensor 52 (a miniature strain gauge pressure sensor 52 can be used) needs to be zero-point calibrated before use. Suspend the first measuring block 33 and record the initial value of the pressure sensor 52 (usually 0). If there is a deviation, correct it through the terminal software to ensure the accuracy of subsequent bulge / dent calculation (based on Hooke's Law ΔF=kΔx). The displacement sensor of the second electric push rod 313 is "synchronously calibrated" with the sensor of the first electric push rod 32 to avoid diagonal dimension deviation caused by sensor accuracy differences when detecting square pile holes.

[0061] The roller sleeve 29 and spline sleeve 22 are existing purchased bushing assemblies. The inner wall of the spline sleeve 22 has 3-4 sets of balls with 2-3 balls in each set. The balls are embedded in the second groove 211 of the second lead screw 21. This ensures that when the second motor 24 drives the spline sleeve 22, the balls push the groove wall to drive the lead screw to rotate, without affecting the lead screw's axial sliding along the spline sleeve 22. When the third motor 26 drives the roller sleeve 29, the lead screw can move up and down independently. The two movements do not interfere with each other. The specific structure will not be described in detail. In addition, all parts of the testing assembly are waterproofed to prevent water seepage from causing damage.

[0062] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0063] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0064] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. An aperture detection device for engineering inspection and supervision, characterized in that, include: A testing frame (1) has a moving component (2) installed in the middle, and a testing component (3) is installed at the bottom of the testing frame (1). The testing component (3) is connected to the moving component (2). The detection component (3) includes a connecting frame (31), in which a plurality of first electric push rods (32) are installed. The first electric push rods (32) are supported and installed by a fixing frame (34). The first electric push rods (32) are installed at the four corners of the connecting frame (31). The output end of the first electric push rod (32) is equipped with a first measuring block (33). The first electric push rod (32) has a built-in position sensor. The contact surface of the first measuring block (33) is set in an arc shape. The bottom of the detection frame (1) is provided with a first sliding groove (11) arranged in a cross shape. A first lead screw (12) is installed in each of the first sliding grooves (11). A first motor (13) is installed at one end of each of the first lead screws (12). The first motor (13) is installed in a first mounting groove (14) at one end of the first sliding groove (11). A fixing block (15) is installed on the first lead screw (12). The clamping surface of the fixing block (15) is set in an arc shape.

2. The aperture detection device for engineering inspection and supervision according to claim 1, characterized in that: The moving component (2) includes a second lead screw (21), on which a roller sleeve (29) is also installed. A second belt (25) is provided on the roller sleeve (29). The second belt (25) is connected to a third motor (26). The third motor (26) is installed on the bracket (4) of the detection frame (1). The second lead screw (21) passes through the detection frame (1) and is connected to the connecting frame (31). The second lead screw (21) is provided with a protective shell (27) on the outside. A slide rail (28) is provided inside the protective shell (27). The second lead screw (21) is located in the slide rail (28). A limiting block (212) is provided at the top of the second lead screw (21) to limit the second lead screw (21) from sliding to the bottom of the slide rail (28).

3. The aperture detection device for engineering inspection and supervision according to claim 2, characterized in that: A spline sleeve (22) is installed on the second lead screw (21). The second lead screw (21) is provided with a second slide groove (211) that is slidably connected to the spline sleeve (22). A first belt (23) is provided on the spline sleeve (22). A second motor (24) is connected to the first belt (23). The second motor (24) is installed on the bracket (4).

4. The aperture detection device for engineering inspection and supervision according to claim 1, characterized in that: A connector (5) is installed between the first measuring block (33) and the first electric push rod (32). The connector (5) includes a connecting shell (51), in which a pressure sensor (52) is installed. A moving rod (53) is provided on the end face of the connecting shell (51). One end of the moving rod (53) is connected to the first measuring block (33). A spring (54) is provided between the moving rod (53) and the pressure sensor (52).

5. The aperture detection device for engineering inspection and supervision according to claim 1, characterized in that: The fixed block (15) includes a connecting block (151) and a rotating block (152). The connecting block (151) is connected to the first lead screw (12). The rotating block (152) is installed on the bottom of the connecting block (151) by bolts (153). The two sides of the rotating block (152) are respectively an arc-shaped surface and a flat surface, and both sides of the rotating block (152) are provided with rubber pads (154).

6. The aperture detection device for engineering inspection and supervision according to claim 5, characterized in that: The connecting frame (31) is provided with a second mounting groove (311) on all four sides. A second measuring plate (312) is installed in the second mounting groove (311). The second measuring plate (312) is connected to a second electric push rod (313) on which a displacement sensor is installed. The clamping surface of the second measuring plate (312) is set in a horizontal plane.

7. The aperture detection device for engineering testing and supervision according to claim 6, characterized in that: The clamping surface of the second measuring plate (312) is provided with a third mounting groove (314), and a rolling shaft (315) is installed in the third mounting groove (314).

8. The aperture detection device for engineering inspection and supervision according to claim 1, characterized in that: Multiple hydraulic cylinders (6) are provided on the top of the testing frame (1). The hydraulic cylinders (6) are installed at the four corners of the testing frame (1). Support components (61) are installed at the output end of the hydraulic cylinders (6).

9. The aperture detection device for engineering testing and supervision according to claim 8, characterized in that: The support assembly (61) includes a support plate (611), the bottom of the support plate (611) is provided with a placement groove (612), the two sides of the placement groove (612) are provided with mounting holes (613), a roller (614) is provided in the placement groove (612), the roller (614) is installed by inserting a pin (615) into the mounting hole (613), and the bottom of the support plate (611) is provided with an anti-slip pad (616).

10. The aperture detection device for engineering inspection and supervision according to claim 2, characterized in that: A connecting pipe (7) is provided between the connecting frame (31) and the second lead screw (21). The connecting pipe (7) contains a first bearing (71) and a second bearing (72). The connecting frame (31) is connected to the first bearing (71) via a connecting rod (73). The second lead screw (21) is connected to the second bearing (72). A connecting groove (74) is provided at one end opposite to the second lead screw (21). S-class and N-class magnets are installed alternately in the groove wall of the connecting groove (74). An insertion block (75) is provided at one end opposite to the second lead screw (21) and the connecting rod (73). An alternating S-class and N-class magnet is installed on the outer wall of the insertion block (75), and they are alternately corresponding to the magnets on the groove wall of the connecting groove (74).

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