Intelligent portable variable energy continuous power sounding device

Abstract

This invention discloses an intelligent portable variable-energy continuous-power penetrometer, belonging to the technical field of engineering testing equipment. The intelligent portable variable-energy continuous-power penetrometer includes a probe handle and a probe rod, and further includes: a probe base connected to the probe rod, the probe base having an inner cavity; a force sensor disposed within the inner cavity; a probe cone with a pressure block at the top, the pressure block being slidably connected to the side wall of the inner cavity, and the pressure block abutting against the force sensor; and a controller electrically connected to the force sensor, the force sensor being used to detect the real-time pressure on the pressure block, and the controller being electrically connected to a display, the controller being used to control the display to show the real-time pressure. This intelligent portable variable-energy continuous-power penetrometer ensures that even when the probe rod is deflected, i.e., when the soil is in contact with the probe rod, the frictional force of the soil on the probe rod will not affect the detection of the soil's mechanical properties, thus guaranteeing the accuracy of the measurement results.

Description

Technical Field

[0001] This invention relates to the field of engineering testing equipment technology, specifically to an intelligent portable variable energy continuous power penetration test device. Background Technology

[0002] Static penetration testing (CPPT) involves using a pressure device to drive a penetration test device into the soil. A measurement system then measures the penetration resistance of the soil, thereby determining some basic physical and mechanical properties of the soil, such as its deformation modulus and allowable bearing capacity. There are three methods of applying pressure in static penetration testing: mechanical, hydraulic, and manual. The calculated parameters obtained from the static penetration test can determine the natural bearing capacity of the soil foundation. Because the penetration mechanism of static penetration differs from the strength and deformation mechanism of the foundation, it is not commonly used.

[0003] Some existing penetrometers typically include a probe handle, a force sensor, a probe rod, and a probe. The force sensor is located inside the probe handle, the probe rod is connected to the probe handle, and the probe is connected to the probe rod. By applying an impact force to the probe handle, the impact force is transmitted through the probe rod to the probe, causing the probe to penetrate the soil. The force sensor at the probe handle detects the impact force, thereby approximating the reaction force exerted by the soil on the probe as it penetrates, and thus roughly calculating the soil's mechanical properties.

[0004] However, with existing penetrometers, the probe rod is prone to deflection when the hammer strikes the probe handle, which can easily lead to contact between the probe rod and the soil. This contact generates frictional resistance, and the frictional force between the soil and the probe rod affects the calculation of the soil's mechanical properties, resulting in low accuracy of the measurement results. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems in the prior art and provide an intelligent, portable, variable-energy continuous-power penetrometer that can ensure the accuracy of the measurement results by preventing the soil's mechanical properties from being affected by the frictional force between the soil and the penetrometer when the penetrometer is deflected, i.e. when the soil is in contact with the penetrometer.

[0006] This invention provides an intelligent portable variable-energy continuous-power penetrometer, including a probe handle, a probe rod, and further comprising:

[0007] The probe base is connected to the probe rod, and the probe base has an inner cavity;

[0008] A force sensor is disposed within the inner cavity;

[0009] The probe cone has a top pressure block, which is slidably connected to the inner cavity sidewall and abuts against the force sensor.

[0010] The controller is electrically connected to the force sensor, which is used to detect the real-time pressure on the top pressure block. The controller is electrically connected to a display, which is used to control the display to show the real-time pressure.

[0011] Preferably, the device also includes a probe correction mechanism, which comprises a frame, a cross bearing mechanism, an electric slide rail mechanism, and a level measuring instrument. One end of the cross bearing mechanism is connected to a hammering mechanism, and the other end is connected to the frame. The slider of the electric slide rail mechanism is connected to the hammering mechanism via a ball joint. The slide rail of the electric slide rail mechanism is connected to a mounting plate, which is connected to the frame via a bearing. A first power device is also connected to the top of the mounting plate. The level measuring instrument is mounted on the probe handle and is used to detect the real-time levelness of the probe handle. The controller is electrically connected to the electric slide rail mechanism, the first power device, the level measuring instrument, and the power supply. The controller is electrically connected to a data processor, which is used to calculate the real-time deviation of the probe based on the real-time levelness of the probe handle. The controller controls the operation of the electric slide rail mechanism and the first power device based on the real-time deviation.

[0012] Preferably, a follower frame is provided between the mounting plate and the frame, the follower frame is provided with a threaded nut and a sliding sleeve, the frame is provided with a vertically arranged lead screw and a sliding rod, the lead screw is threadedly connected to the threaded nut, the sliding sleeve is slidably connected to the sliding rod, the mounting plate is connected to the follower frame through a bearing, and the cross bearing mechanism is connected to the frame.

[0013] Preferably, the follower frame is provided with a connecting rod, the connecting rod is provided with a ring sleeve, the ring sleeve is provided with a rubber ring, and the probe rod is slidably connected to the inner wall of the rubber ring.

[0014] Preferably, a second power device is connected to the lead screw, and the second power device is electrically connected to the controller.

[0015] Preferably, a hydraulic cylinder is provided between the slider and the hammering mechanism, the cylinder body of the hydraulic cylinder is fixedly connected to the hammering mechanism, the piston of the hydraulic cylinder is connected to the slider through a ball joint, and the cylinder body is connected to a hydraulic control circuit.

[0016] Preferably, the hammering mechanism is electrically connected to the controller, and the hammering force of the hammering mechanism is controlled by the controller.

[0017] Preferably, the frame is a detachable frame.

[0018] Preferably, the controller is electrically connected to a radio frequency transceiver.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the intelligent portable variable energy continuous power penetrometer of the present invention can ensure that the frictional force of the soil on the probe rod will not affect the detection of the mechanical properties of the soil when the probe rod is deflected, i.e. when the soil is in contact with the probe rod, thus ensuring the accuracy of the measurement results of the device.

[0020] This equipment can control the position and attitude of the hammering mechanism when the probe rod is slightly tilted, thereby controlling the direction of the force applied to the probe rod by the hammering mechanism. This ensures that the direction of the impact force on the probe rod coincides with the probe rod's axis, preventing further tilting. By incorporating a follower frame, it can offset changes in the height difference between the slider and the probe handle, maintaining a relatively constant vertical height difference between them and reducing system operating errors. The connecting rod, ring, and rubber ring provide auxiliary stabilization for the probe rod, further preventing tilting. The inclusion of a second power unit, controlled by a controller to drive the lead screw, enhances the automation level of the device and saves manpower. The hydraulic cylinder prevents dead spots in the slider's movement when the hammering mechanism's attitude changes. The controller controls the hammering force of the hammering mechanism, automatically adjusting the impact energy on the probe rod and probe base to meet the requirements of different working conditions. The detachable frame improves the equipment's portability and facilitates its transport. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the AA surface of the present invention;

[0023] Figure 3 This is a schematic diagram of the probe of the present invention;

[0024] Figure 4 This is a schematic diagram of the force sensor in this invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 101. Frame, 102. Hammering mechanism, 103. Probe rod, 104. First power unit, 105. Cross bearing mechanism, 106. Slider, 107. Slide rail, 108. Mounting plate, 110. Probe handle, 111. Level measuring instrument, 201. Follower frame, 202. Nut sleeve, 203. Sliding sleeve, 204. Lead screw, 205. Sliding rod, 301. Connecting rod, 302. Ring sleeve, 303. Rubber ring, 4. Second power unit, 501. Cylinder, 502. Piston, 601. Probe base, 602. Force sensor, 603. Probe cone, 604. Top pressure block. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 3 and 4 As shown, the present invention provides an intelligent portable variable-energy continuous-power penetrometer, including a probe handle 110, a probe rod 103, and further including: a probe base 601, a probe cone 603, and a controller. The probe base 601 is connected to the probe rod 103, and the probe base 601 has an inner cavity; a force sensor 602 is disposed in the inner cavity; the probe cone 603 has a top pressure block 604, which is slidably connected to the side wall of the inner cavity and abuts against the force sensor 602; the controller is electrically connected to the force sensor 602, and the force sensor 602 is used to detect the real-time pressure on the top pressure block 604; the controller is electrically connected to a display, and the controller is used to control the display to display the real-time pressure.

[0030] The working principle of Example 1 is briefly described below:

[0031] Align the probe cone 603 of this device with the detection point, and then strike the probe handle 110 with a hammer. The impact force is transmitted to the probe base 601 through the probe rod 103. The probe base 601 is then transmitted to the top pressure block 604 through the force sensor 602. The top pressure block 604 then acts directly on the probe cone 603. After being subjected to force, the probe cone 603 extends into the soil at the detection point. The soil at the detection point exerts a reaction force on the probe cone. This reaction force acts directly on the force sensor 602 through the top pressure block 604. The force sensor 602 directly detects the real-time pressure on the top pressure block 604. This real-time pressure is equal to the magnitude of the reaction force exerted by the soil on the probe cone. The control display then shows the real-time pressure. By combining this real-time pressure with the depth of the probe base 601 extending into the soil, the user can accurately calculate the mechanical properties of the soil at the detection point. Since the force sensor 602 directly detects the reaction force on the probe cone that compresses the soil, even if the probe rod 103 is tilted, i.e. when the soil comes into contact with the probe rod 103, the frictional force of the soil on the probe rod 103 will not affect the detection of the mechanical properties of the soil, thus ensuring the accuracy of the measurement results of this equipment.

[0032] The present invention provides an intelligent portable variable energy continuous power penetration test device that ensures the accuracy of the measurement results by preventing the soil's mechanical properties from being affected by the frictional force between the soil and the probe rod 103 when the probe rod 103 is deflected, i.e. when the soil is in contact with the probe rod 103.

[0033] Example 2:

[0034] Based on Example 1, in order to ensure that the direction of the impact force on the probe 103 coincides with the axial direction of the probe 103 when the probe 103 is slightly deflected, thereby preventing the probe 103 from deflecting further.

[0035] like Figure 1 and 2 As shown, it also includes a probe correction mechanism, which comprises a frame 101, a cross bearing mechanism 105, an electric slide rail mechanism, and a levelness measuring instrument 111. One end of the cross bearing mechanism 105 is connected to a hammering mechanism 102, and the other end of the cross bearing mechanism 105 is connected to the frame 101. The slider 106 of the electric slide rail mechanism is connected to the hammering mechanism 102 via a ball joint. The slide rail 107 of the electric slide rail mechanism is connected to a mounting plate 108, which is connected to the frame 101 via a bearing. The top of the mounting plate 108... The end is also connected to a first power unit 104. The levelness measuring instrument 111 is installed on the probe handle 110. The levelness measuring instrument 111 is used to detect the real-time levelness of the probe handle 110. The controller is electrically connected to the electric slide rail mechanism, the first power unit 104, the levelness measuring instrument 111 and the power supply. The controller is electrically connected to a data processor. The data processor is used to calculate the real-time deflection of the probe rod 103 based on the real-time levelness of the probe handle 110. The controller controls the electric slide rail mechanism and the first power unit 104 to operate based on the real-time deflection.

[0036] When conducting a penetration test on the mechanical properties of the soil, the frame 101 is placed at the desired testing location. After the probe rod 103 and the probe cone 603 are inserted into the soil, the hammer head of the hammering mechanism 102 strikes the probe handle 110. The hammering force of the hammering mechanism 102 is controllable. Simultaneously, the force sensor 602 monitors the mechanical properties of the soil in real time. When the probe rod 103 shows slight deflection, the levelness measuring instrument 111 located on the probe handle 110 can measure the levelness of the probe handle 110 in the X-axis and Y-axis directions in real time. The X-axis and Y-axis directions are perpendicular to each other. Since the probe handle 110 is connected to the top of the probe rod 103, when the probe rod 103 deflects, the levelness of the probe handle 110 changes along the X-axis and Y-axis directions. Therefore, the data processor can calculate the real-time deflection of the top of the probe rod 103 based on the change in the levelness of the probe handle 110 in the X-axis and Y-axis directions. When probe 103 deviates in the positive X-axis or positive Y-axis direction, the combined deviance value is L, and the direction of the combined deviance value is A. → Since the vertical height difference between the slider 106 and the probe handle 110 is relatively fixed, the controller calculates the distance H that the slider 106 needs to slide when the movement direction of the hammer head of the hammering mechanism 102 is aligned with the axial direction of the probe rod 103, based on the principle of similar triangles. Then, the controller controls the slider 106 of the electric slide rail mechanism to slide by the value of H. At this time, since the bottom end of the hammering mechanism 102 is connected to the cross bearing mechanism 105, the axial direction of the hammering mechanism 102 is deflected. Then, the first power device 104 is controlled to drive the mounting plate 108 to rotate by a corresponding angle, so that the direction of the hammer head movement is aligned with the axial direction of the probe rod 103, and the direction of the impact force applied by the hammer head to the probe handle 110 is aligned with the axial direction of the probe rod 103. This prevents the probe rod 103 from further deflecting, thereby further avoiding the inaccuracy of the mechanical property test results of the soil caused by the friction of the soil on the probe rod.

[0037] Example 3:

[0038] Based on Embodiment 2, in order to enable the slider 106 to follow the probe 110 downward, the vertical height difference between the slider 106 and the probe 110 is kept relatively fixed when the probe 110 moves downward, thereby reducing the working error of the system.

[0039] like Figure 1 and 2As shown, a follower frame 201 is provided between the mounting plate 108 and the frame 101. The follower frame 201 is provided with a threaded nut sleeve 202 and a sliding sleeve 203. The frame 101 is provided with a vertically arranged lead screw 204 and a sliding rod 205. The lead screw 204 is threadedly connected to the threaded nut sleeve 202, and the sliding sleeve 203 is slidably connected to the sliding rod 205. The mounting plate 108 is connected to the follower frame 201 through a bearing, and the cross bearing mechanism 105 is connected to the frame 101.

[0040] When the probe handle 110 is impacted by the hammer head of the hammering mechanism 102, the probe rod 103 and the probe base 601 move downwards. At this time, the height difference between the probe handle 110 and the slider 106 in the vertical direction changes, which will cause an error in the controller's calculation of distance H. To address this, rotating the lead screw 204 drives the lead screw sleeve 202 to move downwards a certain distance, which in turn drives the follower frame 201 to move downwards a certain distance, which in turn drives the mounting plate 108 and the electric slide rail 107 to move downwards a certain distance. This counteracts the change in the height difference between the slider 106 and the probe handle 110, thus keeping the vertical height difference between the slider 106 and the probe handle 110 relatively constant and reducing the system's operating error.

[0041] As a preferred option, such as Figure 1 As shown, the follower frame 201 is equipped with a connecting rod 301, the connecting rod 301 is equipped with a ring 302, and a rubber ring 303 is provided inside the ring 302. The probe 103 is slidably connected to the inner wall of the rubber ring 303. By setting the connecting rod 301, the ring 302, and the rubber ring 303, the probe 103 can be stabilized, thereby further preventing the probe 103 from deflecting.

[0042] As a preferred option, such as Figure 1 As shown, a second power device 4 is connected to the lead screw 204, and the second power device 4 is electrically connected to the controller. By setting the second power device 4, the controller controls the second power device 4 to drive the lead screw 204, thereby improving the automation level of the device and saving manpower.

[0043] As a preferred option, such as Figure 1 As shown, a hydraulic cylinder is provided between the slider 106 and the hammering mechanism 102. The cylinder body 501 of the hydraulic cylinder is fixedly connected to the hammering mechanism 102, and the piston 502 of the hydraulic cylinder is connected to the slider 106 via a ball joint. The cylinder body 501 is connected to a hydraulic control circuit. By providing a hydraulic cylinder, when the slider 106 of the electric slide rail mechanism moves, hydraulic oil is introduced or discharged into the cylinder body 501 through the hydraulic control circuit, thereby adjusting the length of the entire hydraulic cylinder. This prevents the slider 106 from reaching a dead point when the posture of the hammering mechanism 102 changes.

[0044] As a preferred option, such as Figure 1 As shown, the hammering mechanism 102 is electrically connected to the controller, which controls the hammering force of the hammering mechanism 102. By controlling the hammering force of the hammering mechanism 102, the controller automatically adjusts the impact energy received by the probe rod 103 and the probe base 601, thereby meeting the usage requirements of different working conditions.

[0045] As a preferred option, such as Figure 1 As shown, the frame 101 is a detachable frame 101. By making the frame 101 a detachable frame 101, the portability of this device can be improved, and the transportation of this device can be facilitated.

[0046] As a preferred option, such as Figure 1 As shown, the controller is electrically connected to a radio frequency (RF) transceiver. By using the RF transceiver for signal transmission, the portability of this device can be improved.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent portable variable-energy continuous-powered penetrometer, comprising a probe handle (110) and a probe rod (103), characterized in that, Also includes: The probe base (601) is connected to the probe rod (103), and the probe base (601) is provided with an inner cavity; Force sensor (602) is disposed inside the cavity; The probe cone (603) has a top pressure block (604) at the top, the top pressure block (604) is slidably connected to the inner cavity sidewall, and the top pressure block (604) abuts against the force sensor (602); The controller is electrically connected to the force sensor (602), which is used to detect the real-time pressure on the top pressure block (604). The controller is electrically connected to a display, which is used to control the display to show the real-time pressure. It also includes a probe correction mechanism, which comprises a frame (101), a cross bearing mechanism (105), an electric slide rail mechanism, and a level measuring instrument (111). One end of the cross bearing mechanism (105) is connected to a hammering mechanism (102), and the other end of the cross bearing mechanism (105) is connected to the frame (101). The slider (106) of the electric slide rail mechanism is connected to the hammering mechanism (102) via a ball joint. The slide rail (107) of the electric slide rail mechanism is connected to a mounting plate (108), and the mounting plate (108) is connected to the frame (101) via a bearing. The top is also connected to a first power device (104). The level measuring instrument (111) is located on the probe handle (110). The level measuring instrument (111) is used to detect the real-time levelness of the probe handle (110). The controller is electrically connected to the electric slide rail mechanism, the first power device (104), the level measuring instrument (111), and the power supply device. The controller is electrically connected to a data processor. The data processor is used to calculate the real-time deflection of the probe rod (103) based on the real-time levelness of the probe handle (110). The controller controls the electric slide rail mechanism and the first power device (104) to operate based on the real-time deflection.

2. The intelligent portable variable-energy continuous-powered penetrometer as described in claim 1, characterized in that, A follower frame (201) is provided between the mounting plate (108) and the frame (101). The follower frame (201) is provided with a threaded nut sleeve (202) and a sliding sleeve (203). The frame (101) is provided with a vertically arranged lead screw (204) and a sliding rod (205). The lead screw (204) is threadedly connected to the threaded nut sleeve (202), and the sliding sleeve (203) is slidably connected to the sliding rod (205). The mounting plate (108) is connected to the follower frame (201) through a bearing. The cross bearing mechanism (105) is connected to the frame (101).

3. The intelligent portable variable-energy continuous-powered penetrometer as described in claim 2, characterized in that, The follower frame (201) is provided with a connecting rod (301), the connecting rod (301) is provided with a ring sleeve (302), the ring sleeve (302) is provided with a rubber ring (303), and the probe (103) is slidably connected to the inner wall of the rubber ring (303).

4. The intelligent portable variable-energy continuous-powered penetrometer as described in claim 2, characterized in that, A second power device (4) is connected to the lead screw (204), and the second power device (4) is electrically connected to the controller.

5. The intelligent portable variable-energy continuous-powered penetrometer as described in claim 1, characterized in that, A hydraulic cylinder is provided between the slider (106) and the hammering mechanism (102). The cylinder body (501) of the hydraulic cylinder is fixedly connected to the hammering mechanism (102). The piston (502) of the hydraulic cylinder is connected to the slider (106) through a ball joint. The cylinder body (501) is connected to a hydraulic control circuit.

6. The intelligent portable variable-energy continuous-powered penetrometer as described in claim 1, characterized in that, The hammering mechanism (102) is electrically connected to the controller, and the hammering force of the hammering mechanism (102) is controlled by the controller.

7. The intelligent portable variable-energy continuous-powered penetrometer as described in claim 1, characterized in that, The frame (101) is a detachable frame (101).

8. The intelligent portable variable-energy continuous-powered penetrometer as described in claim 1, characterized in that, The controller is electrically connected to a radio frequency transceiver.

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