Intelligent adaptive geotechnical engineering in-situ parameter rapid tester

Abstract

The present invention discloses an intelligent adaptive geotechnical engineering in-situ parameter rapid tester, which belongs to the field of geotechnical engineering technology, including a base, the base is circular in shape, a ball groove is provided at the middle position of the base, a sphere is rotatably installed inside the ball groove, a sleeve is vertically fixed to the bottom of the sphere, a cone block is fixed to the bottom end of the sleeve, the top of the sphere protrudes from the top of the base, a lower mounting plate is horizontally fixed to the top of the sphere, and a through groove is provided on the sphere, the lower mounting plate and the cone block. The present invention provides a ball groove at the center position of the base, and a sphere is rotatably installed inside the ball groove, while a sleeve and a cone block are fixed at the bottom of the sphere to act as a counterweight, so that during use, the device can automatically adjust the position of the through groove on the sphere by utilizing the counterweight at the bottom of the sphere, ensuring that the through groove is perpendicular to the horizontal plane, and when the probe rod passes through the through groove, it can be perpendicular to the horizontal plane, thereby ensuring the accuracy during testing and making the device more convenient to use and adjust.

Description

Technical Field

[0001] The invention relates to an in-situ parameter rapid tester, in particular to an intelligent self-adaptive geotechnical engineering in-situ parameter rapid tester, and belongs to the technical field of geotechnical engineering. Background Art

[0002] The in-situ parameter rapid tester is the core equipment for achieving efficient and accurate surveys in the field of geotechnical engineering. The patent with application number 202320462098.7 in the prior art discloses a heavy-duty dynamic probing in-situ tester. In order to reduce the workload of the testers, the output shaft of the motor drives the half gear and the rack plate to start running, and the rack plate can be used to drive the sliding cylinder and the core hammer to rise. After the half gear is no longer engaged with the rack plate, the core hammer falls to the upper end of the hammer seat under the action of gravity, thereby driving the probing rod and the probe to move downward, and repeatedly causing the core hammer to exert impact force on the hammer seat.

[0003] Similar to the above application, there are still some deficiencies:

[0004] Because the measuring position of the device is not fixed and the ground on the construction site is uneven, the device cannot perform self-balancing adjustments during use, and a long time is required for adjustment preparation, which affects the measurement rate. During use, the data cannot be automatically recorded. In addition, the insertion length of the probe is not constant during the test, and tooth collisions are prone to occur between gears and incomplete gears, affecting the stability of the device.

[0005] Therefore, an intelligent adaptive geotechnical engineering in-situ parameter rapid tester is designed to optimize the above problems. Summary of the Invention

[0006] The main purpose of the present invention is to provide an intelligent self-adaptive geotechnical engineering in-situ parameter rapid tester.

[0007] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0008] The intelligent adaptive geotechnical engineering in-situ parameter rapid tester includes a base, which is circular in shape, with a ball groove in the middle of the base, a sphere rotatably installed inside the ball groove, a casing vertically fixed to the bottom of the sphere, a cone block fixed to the bottom end of the casing, the top of the sphere protrudes from the top of the base, and a lower mounting plate is horizontally fixed to the top of the sphere. A through groove is provided on the sphere, the lower mounting plate and the cone block, the through groove and the casing are coaxial, and the inner diameter of the through groove is the same as the inner diameter of the casing, a probe rod is vertically slidably provided inside the through groove, a probe is fixed to the bottom end of the probe rod, a hammer seat is installed on the top of the hammer seat, and the top of the base The bottom of the base is provided with a locking mechanism for fixing the sphere, the outer side of the bottom of the base is evenly hingedly installed with support legs, a positioning mechanism is provided between the support legs and the inner bottom of the base, the top of the lower mounting plate is provided with an impact mechanism, a mounting bracket is provided on one side of the top of the base, a storage box is provided at the bottom of the mounting bracket, a display screen is provided at the middle position of the top of the mounting bracket, a controller is provided at one end of the top of the mounting bracket, a first laser displacement sensor electrically connected to the controller is provided at the top of the lower mounting plate and directly below the hammer seat, a counting sensor electrically connected to the controller is provided at the middle position of the hammer seat, and the controller is electrically connected to the display screen through a wire.

[0009] Preferably: the locking mechanism includes an annular groove, an adjusting ring, a strip groove, an extrusion rod and a plane thread, the annular groove is opened on the outer side of the top of the base, the adjusting ring is slidably arranged inside the annular groove, the top of the annular groove is evenly provided with strip grooves in an annular array, and the strip grooves are perpendicular to the cross-section of the base, the ends of the strip grooves are all connected to the inside of the ball groove, the inside of the strip grooves is slidably provided with an extrusion rod, the bottom of the adjusting ring and the top of the extrusion rod are both provided with a plane thread, and the adjusting ring and the extrusion rod are engaged through the plane thread.

[0010] Preferably, the outer side of the adjusting ring is uniformly provided with anti-slip grooves along the circumferential direction, and the end of the extrusion rod close to the sphere is arc-shaped.

[0011] Preferably, there are three groups of supporting legs, and the bottom ends of the supporting legs are all tapered.

[0012] Preferably: the positioning mechanism includes a slide groove, a slider, a support rod and a limit assembly, the slide groove is opened on the lower surface of the base, the slide groove is slidably provided inside the slide groove, the slider and the inner side of the support leg are hingedly installed with a support rod, and the slider is provided with a limit assembly.

[0013] Preferably: the limiting assembly includes a slot, a mounting slot, an insert, a spring and a pull rope, the slots are opened at both ends of the top of the slide slot, the mounting slot is opened at the top of the slider, an insert is slidingly provided inside the mounting slot, a spring is provided between the end of the insert and the end of the mounting slot, a pull rope is fixed to the bottom end of the insert, and the bottom end of the pull rope slides and extends to the bottom of the slider.

[0014] Preferably, the top end of the insert block is provided with an arc chamfer, and the bottom end of the pull rope is fixed with a pull ring.

[0015] Preferably: the impact mechanism includes a sliding rod, an upper mounting plate, an electric telescopic rod, a permanent magnet, a limit block, a core hammer, an L-shaped rod and a second laser displacement sensor, the sliding rod is evenly and vertically arranged on the top of the lower mounting plate, the upper mounting plate is horizontally fixed between the top ends of the sliding rods, the electric telescopic rod is vertically installed on the top of the upper mounting plate, the output end of the electric telescopic rod extends to the bottom of the upper mounting plate, the output end of the electric telescopic rod is installed with a permanent magnet, limit blocks are slidably provided on the sliding rods, a core hammer is fixed between the limit blocks, an L-shaped rod is fixed at the bottom end of a group of limit blocks, the bottom end of the L-shaped rod extends to directly below the hammer seat, the second laser displacement sensor is electrically connected to the controller through a wire, and the output end of the controller is electrically connected to the electric telescopic rod through a wire.

[0016] Preferably, the top of the lower mounting plate is evenly fixed with plug sleeves, the bottom ends of the slide rods are all plugged into the inside of the plug sleeves, and the plug sleeves are distributed in a triangular shape.

[0017] Preferably, the limiting blocks are all provided with sliding holes, and balls are rotatably mounted on the inner walls of the sliding holes.

[0018] The beneficial effects of the present invention are:

[0019] The intelligent adaptive geotechnical engineering in-situ parameter rapid tester provided by the present invention has a ball groove at the center of the base, and a ball is rotatably installed inside the ball groove. At the same time, a sleeve and a cone block are fixed at the bottom of the ball to serve as a counterweight. When the device is in use, the counterweight at the bottom of the ball can automatically adjust the position of the through groove on the ball to ensure that the through groove is perpendicular to the horizontal plane. When the probe rod passes through the through groove, it can be perpendicular to the horizontal plane, thereby ensuring the accuracy of the test and making the use and adjustment of the device more convenient.

[0020] The locking mechanism composed of the annular groove on the top of the base, the adjustment ring, the strip groove, the extrusion rod, and the flat thread can be quickly squeezed and fixed after the ball is self-adjusted, ensuring the stability of the ball during use;

[0021] The impact mechanism consisting of a plug sleeve, a sliding rod, an upper mounting plate, an electric telescopic rod, a permanent magnet, a limit block, a core hammer, an L-shaped rod, and a second laser displacement sensor is arranged on the top of the base. The electric telescopic rod is used to control the rise of the core hammer, and the L-shaped rod of a fixed length is used to ensure that the core hammer can automatically detach after moving up a fixed distance due to the resistance of the hammer seat. At the same time, the suction force of the permanent magnet on the core hammer is greater than the weight of the core hammer, but less than the sum of the gravity of the core hammer and the probe, ensuring that the core hammer can be stably moved up and detached, making it more convenient to use.

[0022] The control system, which consists of a first laser displacement sensor, a second laser displacement sensor, a counting sensor, a controller, a display screen, and an electric telescopic rod, can measure the downward movement depth of the hammer seat using the first laser displacement sensor, and then use the counting sensor to record the number of impacts when the hammer seat moves downward by ten centimeters. The recorded values ​​are displayed on the display screen, eliminating the need for manual recording and making it more convenient to use. In addition, the second laser displacement sensor is used to measure the distance between the hammer seat and the upper mounting plate, and the controller is used to control the telescopic length of the electric telescopic rod to ensure stable lifting of the core hammer.

[0023] Through the positioning mechanism composed of the slide groove, slider, support rod, slot, installation groove, plug block, spring and pull rope under the base, the legs can be expanded outward when in use, expanding the support area and improving the stability of the device. After use, they can be folded inward to reduce the space occupied by the device and make it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a main view of a preferred embodiment of the intelligent adaptive geotechnical engineering in-situ parameter rapid tester in use;

[0025] Figure 2 This is a preferred embodiment of the intelligent adaptive geotechnical engineering in-situ parameter rapid tester of the present invention. Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 A cross-sectional view of the base of a preferred embodiment of the intelligent adaptive geotechnical engineering in-situ parameter rapid tester of the present invention;

[0027] Figure 4 This is a structural diagram of an adjustment ring in a preferred embodiment of the intelligent adaptive geotechnical engineering in-situ parameter rapid tester of the present invention;

[0028] Figure 5 This is a diagram of the impact mechanism of a preferred embodiment of the intelligent adaptive geotechnical engineering in-situ parameter rapid tester of the present invention;

[0029] Figure 6 This is a preferred embodiment of the intelligent adaptive geotechnical engineering in-situ parameter rapid tester of the present invention. Figure 3 Enlarged view of point B in the middle;

[0030] Figure 7 This is a preferred embodiment of the intelligent adaptive geotechnical engineering in-situ parameter rapid tester of the present invention. Figure 3 Enlarged view of point C in the middle.

[0031] In the figure: 1. Base; 2. Ball groove; 3. Ball; 4. Casing; 5. Cone block; 6. Lower mounting plate; 7. Through groove; 8. Sounding rod; 9. Probe; 10. Hammer seat;

[0032] 11. Locking mechanism; 1101. Annular groove; 1102. Adjusting ring; 1103. Strip groove; 1104. Extrusion rod; 1105. Flat thread;

[0033] 12. Outriggers;

[0034] 13. Positioning mechanism; 1301. Slide; 1302. Slider; 1303. Support rod; 1304. Slot; 1305. Mounting slot; 1306. Insert; 1307. Spring; 1308. Pull rope;

[0035] 14. First laser displacement sensor; 15. Counting sensor;

[0036] 16. Impact mechanism; 1601. Insert sleeve; 1602. Sliding rod; 1603. Upper mounting plate; 1604. Electric telescopic rod; 1605. Permanent magnet; 1606. Limit block; 1607. Punch hammer; 1608. L-shaped rod; 1609. Second laser displacement sensor;

[0037] 17. Mounting bracket; 18. Storage box; 19. Controller; 20. Display screen. DETAILED DESCRIPTION

[0038] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0039] like Figure 1-Figure 7As shown, the present embodiment provides an intelligent adaptive geotechnical engineering in-situ parameter rapid tester, including a base 1, which is circular in shape, with a ball groove 2 provided in the middle of the base 1, a sphere 3 rotatably installed inside the ball groove 2, a sleeve 4 is vertically fixed to the bottom of the sphere 3, a cone block 5 is fixed to the bottom end of the sleeve 4, the top of the sphere 3 protrudes from the top of the base 1, and a lower mounting plate 6 is horizontally fixed to the top of the sphere 3, a through groove 7 is provided on the sphere 3, the lower mounting plate 6 and the cone block 5, the through groove 7 and the sleeve 4 are coaxial, and the inner diameter of the through groove 7 is the same as the inner diameter of the sleeve 4, a probe rod 8 is vertically slidably provided inside the through groove 7, the inner diameter of the through groove 7 is φ30mm, and the outer diameter of the probe rod 8 is φ29.8mm, ensuring that the vertical deviation of the probe rod is ≤0.5°, a probe 9 is fixed to the bottom end of the probe rod 8, an M20 external thread is provided at the bottom end of the probe rod 8, a corresponding internal thread is provided at the top of the hammer seat 10 0, a locking mechanism 11 for fixing the sphere 3 is provided at the top of the base 1, and legs 12 are evenly hingedly installed on the outer side of the bottom of the base 1. The legs 12 are hinged to the base 1 through a stainless steel pin with a diameter of 8 mm. Damping washers are provided at both ends of the pin, and the swing amplitude of the legs 12 after unfolding is ≤5°. Positioning mechanisms 13 are provided between the legs 12 and the inner bottom of the base 1. An impact mechanism 16 is provided at the top of the lower mounting plate 6, a mounting bracket 17 is provided on one side of the top of the base 1, a storage box 18 is provided at the bottom of the mounting bracket 17, a display screen 20 is provided in the middle position of the top of the mounting bracket 17, and a controller 19 is provided at one end of the top of the mounting bracket 17. A first laser displacement sensor 14 electrically connected to the controller 19 is provided at the top of the lower mounting plate 6 and directly below the hammer seat 10. A counting sensor 15 electrically connected to the controller 19 is provided at the middle position of the hammer seat 10, and the controller 19 is electrically connected to the display screen 20 through a wire.

[0040] Overall working principle: The device is powered by a detachable lithium battery pack. When in use, first unfold the legs 12 outward, and then place the legs 12 at the area to be tested. Since the ground is not horizontal, the top of the base 1 has a certain inclination angle. However, since the sphere 3 can rotate inside the ball groove 2, and the bottom of the sphere 3 has a counterweight composed of a sleeve 4 and a cone block 5, under the action of gravity, the position of the sphere 3 is adjusted, the sleeve 4 and the cone block 5 are perpendicular to the horizontal plane, and then the position of the sphere 3 is fixed by the locking mechanism 11, and then the through slot 7 at the top of the sphere 3 of the probe rod 8 is vertically inserted. After passing through the bottom of the cone block 5, the probe 9 is installed at the bottom end of the probe rod 8, and the probe rod 8 is perpendicular to the horizontal plane. Then the impact mechanism 16 is used to apply pressure to the hammer seat 10, and the probe 9 enters the interior of the soil. The hammer seat 10 is moved downward by the first laser displacement sensor 14. The distance is measured, the initial position of the sounding rod 8 is 0, and the first 30cm penetration depth is used as the "pre-hitting" section. When the probe 9 is embedded in the soil at a depth of ≥30cm, the first laser displacement sensor 14 triggers the "formal test" mode, and the counting sensor 15 is reset. Starting from the position after the pre-hitting section, the first laser displacement sensor 14 re-measures the data and uses the counting sensor 15 to record the number of times the hammer seat 10 is impacted. The number of hammer blows is recorded for every 10cm of penetration, and the measured distance value and number of times are transmitted to the inside of the controller 19. When the set threshold of 10cm is reached, the controller 19 locks the current number of impacts, displays the data using the display screen 20, and resets the measurement results of the first laser displacement sensor 14 and the counting sensor 15. The test is repeated again, and the hammering is continued until the predetermined test depth is reached to obtain multiple test data.

[0041] In this embodiment, the locking mechanism 11 includes an annular groove 1101, an adjusting ring 1102, a strip groove 1103, an extrusion rod 1104 and a plane thread 1105. The annular groove 1101 is opened on the outside of the top of the base 1, and the adjusting ring 1102 is slidably provided inside the annular groove 1101. The top of the annular groove 1101 is evenly provided with strip grooves 1103 in an annular array, and the strip grooves 1103 are perpendicular to the cross-section of the base 1. The ends of the strip grooves 1103 are all connected to the inside of the ball groove 2, and the inside of the strip grooves 1103 are all slidably provided with extrusion rods 1104. The adjusting ring 1102 is provided on the outside of the annular groove 1101. Both the bottom and the top of the extrusion rod 1104 are provided with a flat thread 1105, and the adjusting ring 1102 and the extrusion rod 1104 are engaged with the flat thread 1105. The flat thread 1105 adopts a trapezoidal thread with a pitch of 2mm and a tooth angle of 30°. The bottom of the adjusting ring 1102 is provided with 10 turns of thread, and the top of the extrusion rod 1104 is provided with a corresponding engaging thread to ensure that when the adjusting ring 1102 rotates one circle, the extrusion rod 1104 has an axial displacement of 2mm. An elastic rubber pad (Shore hardness 60A) is embedded in the end of the extrusion rod 1104 close to the sphere 3, which produces an elastic deformation of 1-3mm after contacting the sphere.

[0042] Local working principle: After the position adjustment of the sphere 3 is completed, the adjusting ring 1102 is rotated. Since the flat thread 1105 at the bottom of the adjusting ring 1102 is engaged with the extrusion rod 1104, the strip groove 1103 guides the extrusion rod 1104. Therefore, during the rotation of the adjusting ring 1102, the extrusion rod 1104 can be simultaneously controlled to move toward the direction of the sphere 3, thereby squeezing and fixing the sphere 3.

[0043] In this embodiment, the outer side of the adjustment ring 1102 is uniformly provided with anti-slip grooves along the circumference, and the end of the extrusion rod 1104 close to the sphere 3 is arc-shaped.

[0044] Partial working principle: the provision of anti-slip grooves can facilitate manual control of the rotation of the adjustment ring 1102, and the arc-shaped setting of the end of the extrusion rod 1104 can increase the contact area with the ball 3 and increase stability.

[0045] In this embodiment, three groups of legs 12 are provided, and the bottom ends of the legs 12 are all tapered.

[0046] Partial working principle: When supporting the base 1, a triangular support method is adopted, which is more stable, and the tapered setting at the bottom end of the support leg 12 can improve the stability of insertion into the soil.

[0047] In this embodiment, the positioning mechanism 13 includes a slide groove 1301, a slider 1302, a support rod 1303 and a limit assembly. The slide groove 1301 is opened on the lower surface of the base 1, and the slider 1302 is slidably arranged inside the slide groove 1301. The support rod 1303 is hingedly installed between the slider 1302 and the inner side of the support leg 12, and a limit assembly is provided on the slider 1302.

[0048] Local working principle: In the initial state, the bottom ends of multiple groups of legs 12 are gathered together, and the device is smaller in size, which is convenient for carrying and storage. When in use, the legs 12 are pulled outward, and the slider 1302 moves from the inner end of the slide groove 1301 to the outer end, and then the position of the slider 1302 is limited by the limit assembly to stabilize the position of the legs 12.

[0049] In this embodiment, the limiting assembly includes a slot 1304, a mounting slot 1305, an insert 1306, a spring 1307 and a pull rope 1308. The slots 1304 are provided at both ends of the top of the slide 1301, the mounting slot 1305 is provided at the top of the slider 1302, an insert 1306 is provided inside the mounting slot 1305 for sliding, a spring 1307 is provided between the end of the insert 1306 and the end of the mounting slot 1305, and a pull rope 1308 is fixed to the bottom of the insert 1306. 8, and the bottom end of the pull rope 1308 slides and extends to the bottom of the slider 1302, the length of the slide groove 1301 is 150mm, the diameter of the slots 1304 at both ends is 8mm, the spring 1307 adopts a stainless steel compression spring with an elastic coefficient k=5N / mm, a free length of 20mm, and is pre-compressed by 5mm and installed in the installation groove 1305 to ensure that the locking force of the plug 1306 when inserted into the slot 1304 is ≥10N, and the pull rope 1308 can overcome the spring force to unlock when the tension is ≥15N.

[0050] Local working principle: Before the position of the support leg 12 is unfolded, the plug 1306 is pulled downward by the pull rope 1308, and the plug 1306 enters the inside of the installation groove 1305 from the inside of the slot 1304, releasing the limit of the support leg 12, and then the support leg 12 is pulled outward. When the support leg 12 is pulled outward, the pull rope 1308 is released, and the plug 1306 is inserted into the inside of the slot 1304 again under the elastic force of the spring 1307, locking the position of the support leg 12.

[0051] In this embodiment, the top of the insert block 1306 is provided with an arc chamfer, and the bottom end of the pull rope 1308 is fixed with a pull ring.

[0052] Partial working principle: The arc chamfer at the top of the plug 1306 can be easily inserted into the interior of the slot 1304, and the setting of the pull ring can facilitate the control of the pull rope 1308.

[0053] In this embodiment, the impact mechanism 16 includes a sliding rod 1602, an upper mounting plate 1603, an electric telescopic rod 1604, a permanent magnet 1605, a limit block 1606, a core hammer 1607, an L-shaped rod 1608 and a second laser displacement sensor 1609. The sliding rod 1602 is evenly and vertically arranged on the top of the lower mounting plate 6. The upper mounting plate 1603 is horizontally fixed between the top ends of the sliding rod 1602. The electric telescopic rod 1604 is vertically installed on the top of the upper mounting plate 1603. The output end of the electric telescopic rod 1604 extends to the bottom of the upper mounting plate 1603. The output end of the electric telescopic rod 1604 is installed with a permanent magnet 1605. Limit blocks 1606 are slidably provided on the sliding rod 1602. A core hammer 1607 is fixed between the limit blocks 1606. The mass of the core hammer 1607 is 10 kg, the total mass of the probe 9 and the feeler rod 8 is 5 kg, and the total gravity G=150N. The suction force F of the permanent magnet 1605 is 120N (greater than the gravity of the core hammer 100N and less than the total gravity 150N). It uses neodymium iron boron permanent magnets with a surface magnetic induction intensity of ≥0.5T. The adsorption distance with the core hammer 1607 is ≤5mm. An L-shaped rod 1608 is fixed to the bottom end of a set of limit blocks 1606. The length of the L-shaped rod 1608 is 50cm, and the bottom end of the L-shaped rod 1608 extends to the bottom of the hammer seat 10. The second laser displacement sensor 1609 is electrically connected to the controller 19 through a wire, and the output end of the controller 19 is electrically connected to the electric telescopic rod 1604 through a wire. The second laser displacement sensor 1609 measures the distance between the permanent magnet 1605 and the core hammer 1607 in real time. When the distance is greater than 10mm, the controller 19 drives the electric telescopic rod 1604 to descend at a speed of 50mm / s until the distance is ≤5mm and then re-adsorbed to avoid empty hitting or excessive impact.

[0054] Partial working principle: When impacting the hammer base 10, the permanent magnet 1605 magnetically attracts the core hammer 1607, and the electric telescopic rod 1604 is used to control the core hammer 1607 to move upward, and at the same time the L-shaped rod 1608 moves accordingly. When the bottom end of the L-shaped rod 1608 contacts the bottom of the hammer base 10, since the suction force of the permanent magnet 1605 on the core hammer 1607 is less than the sum of the weight of the core hammer 1607 and the probe 9, the L-shaped rod 1608 will prevent the core hammer 1607 from continuing to move upward until the core hammer 1607 is Until it separates from the permanent magnet 1605, the core hammer 1607 falls freely under the action of gravity and impacts the hammer base 10. After the core hammer 1607 contacts the hammer base 10, the second laser displacement sensor 1609 measures the position of the core hammer 1607 and the upper mounting plate 1603, and then controls the extension and contraction amount of the electric telescopic rod 1604 to ensure that the permanent magnet 1605 can magnetically position the core hammer 1607. Repeat the above steps to continuously impact the hammer base 10.

[0055] In this embodiment, the top of the lower mounting plate 6 is evenly fixed with inserting sleeves 1601 , and the bottom ends of the sliding rods 1602 are all inserted into the inside of the inserting sleeves 1601 , and the inserting sleeves 1601 are distributed in a triangular shape.

[0056] Partial working principle: The sliding rod 1602 is plugged into the socket 1601, so that the device can be disassembled after use, making it easy to transfer the device.

[0057] In this embodiment, the limiting blocks 1606 are all provided with sliding holes, and balls are rotatably mounted on the inner walls of the sliding holes.

[0058] Partial working principle: The setting of the ball can reduce the resistance of the limit block 1606 during the downward movement, so as to reduce the error of the impact force.

[0059] The above is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which fall within the scope of protection of the present invention.

Claims

1. An intelligent self-adaptive geotechnical engineering in-situ parameter rapid tester, comprising a base (1), characterized in that: The base (1) is circular in shape, a ball groove (2) is provided at the middle position of the base (1), a ball (3) is rotatably installed inside the ball groove (2), a sleeve (4) is vertically fixed to the bottom of the ball (3), a cone block (5) is fixed to the bottom end of the sleeve (4), the top of the ball (3) protrudes from the top of the base (1), a lower mounting plate (6) is horizontally fixed to the top of the ball (3), a through groove (7) is provided on the ball (3), the lower mounting plate (6) and the cone block (5), the through groove (7) and the sleeve (4) are coaxial, and the inner diameter of the through groove (7) is the same as the inner diameter of the sleeve (4), a feeler rod (8) is vertically slidably provided inside the through groove (7), a probe (9) is fixed to the bottom end of the feeler rod (8), a hammer seat (10) is installed on the top of the feeler rod (8), and a locking mechanism (10) for fixing the ball (3) is provided on the top of the base (1). 1), the outer side of the bottom of the base (1) is evenly hingedly installed with a support leg (12), a positioning mechanism (13) is provided between the support leg (12) and the inner bottom of the base (1), the top of the lower mounting plate (6) is provided with an impact mechanism (16), a mounting frame (17) is provided on one side of the top of the base (1), a storage box (18) is provided at the bottom of the mounting frame (17), a display screen (20) is provided at the middle position of the top of the mounting frame (17), a controller (19) is provided at one end of the top of the mounting frame (17), a first laser displacement sensor (14) electrically connected to the controller (19) is provided at the top of the lower mounting plate (6) and directly below the hammer seat (10), a counting sensor (15) electrically connected to the controller (19) is provided at the middle position of the hammer seat (10), and the controller (19) is electrically connected to the display screen (20) through a wire; The locking mechanism (11) comprises an annular groove (1101), an adjusting ring (1102), a strip groove (1103), an extrusion rod (1104) and a plane thread (1105). The annular groove (1101) is provided on the outer side of the top of the base (1). The adjusting ring (1102) is slidably provided inside the annular groove (1101). The top of the annular groove (1101) is evenly provided with strip grooves (1103) in an annular array, and the strip grooves (1103) are perpendicular to the cross section of the base (1). The ends of the strip grooves (1103) are all connected to the inside of the ball groove (2). The extrusion rod (1104) is slidably provided inside the strip groove (1103). The bottom of the adjusting ring (1102) and the top of the extrusion rod (1104) are both provided with a plane thread (1105). The adjusting ring (1102) and the extrusion rod (1104) are meshed with each other through the plane thread (1105). The impact mechanism (16) includes a slide rod (1602), an upper mounting plate (1603), an electric telescopic rod (1604), a permanent magnet (1605), a limit block (1606), a through hammer (1607), an L-shaped rod (1608) and a second laser displacement sensor (1609). The slide rod (1602) is evenly and vertically arranged on the top of the lower mounting plate (6). The upper mounting plate (1603) is horizontally fixed between the top ends of the slide rod (1602). The electric telescopic rod (1604) is vertically installed on the top of the upper mounting plate (1603). The output end of the electric telescopic rod (1604) extends to the upper mounting plate (1603). At the bottom of the plate (1603), a permanent magnet (1605) is installed at the output end of the electric telescopic rod (1604). Limit blocks (1606) are slidably provided on the slide rod (1602). A core hammer (1607) is fixed between the limit blocks (1606). An L-shaped rod (1608) is fixed at the bottom end of a group of limit blocks (1606). The bottom end of the L-shaped rod (1608) extends to the bottom of the hammer seat (10). The second laser displacement sensor (1609) is electrically connected to the controller (19) through a wire, and the output end of the controller (19) is electrically connected to the electric telescopic rod (1604) through a wire.

2. The intelligent adaptive geotechnical engineering in-situ parameter rapid tester according to claim 1 is characterized by: The outer side of the adjustment ring (1102) is uniformly provided with anti-slip grooves along the circumference, and the end of the extrusion rod (1104) close to the sphere (3) is all arc-shaped.

3. The intelligent adaptive geotechnical engineering in-situ parameter rapid tester according to claim 1 is characterized by: The supporting legs (12) are provided in three groups, and the bottom ends of the supporting legs (12) are all tapered.

4. The intelligent adaptive geotechnical engineering in-situ parameter rapid tester according to claim 3 is characterized by: The positioning mechanism (13) comprises a slide groove (1301), a slider (1302), a support rod (1303) and a limiting assembly. The slide groove (1301) is provided on the lower surface of the base (1). The slide groove (1301) is provided with a slider (1302) for sliding inside. The support rod (1303) is hingedly installed between the slider (1302) and the inner side of the support leg (12). The slider (1302) is provided with a limiting assembly.

5. The intelligent adaptive geotechnical engineering in-situ parameter rapid tester according to claim 4 is characterized by: The limiting assembly includes a slot (1304), a mounting slot (1305), an insert (1306), a spring (1307) and a pull rope (1308), wherein the slot (1304) is provided at both ends of the top of the slide slot (1301), the mounting slot (1305) is provided at the top of the slider (1302), an insert (1306) is provided inside the mounting slot (1305) for sliding, a spring (1307) is provided between the end of the insert (1306) and the end of the mounting slot (1305), a pull rope (1308) is fixed to the bottom end of the insert (1306), and the bottom end of the pull rope (1308) slides and extends to the bottom of the slider (1302).

6. The intelligent adaptive geotechnical engineering in-situ parameter rapid tester according to claim 5, characterized in that: The top of the insert (1306) is provided with an arc chamfer, and the bottom end of the pull rope (1308) is fixed with a pull ring.

7. The intelligent adaptive geotechnical engineering in-situ parameter rapid tester according to claim 6, characterized in that: The top of the lower mounting plate (6) is evenly fixed with plug sleeves (1601), and the bottom ends of the slide rods (1602) are all plugged into the inside of the plug sleeves (1601), and the plug sleeves (1601) are distributed in a triangular shape.

8. The intelligent adaptive geotechnical engineering in-situ parameter rapid tester according to claim 7, characterized in that: The limiting blocks (1606) are all provided with sliding holes, and balls are rotatably mounted on the inner walls of the sliding holes.

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