A static penetration device

Abstract

The present invention relates to the technical field of static penetration testing, and more specifically, to a static penetration testing device, including a probe rod, a penetration mechanism, a rotating rod mechanism, and a casing for fixing on the seabed, wherein the penetration mechanism is installed on the casing, and the rotating rod mechanism includes a third clamping mechanism and a rotation drive mechanism, wherein the rotation drive mechanism and the third clamping mechanism are connected to drive the third clamping mechanism to rotate, and the third clamping mechanism clamps the probe rod. Without relying on an offshore platform, the casing is used for support and fixation, and offshore static penetration testing can be completed quickly and conveniently, saving survey costs, and multiple sections of the probe rod can be tightened, assembled, and fixed while performing static penetration testing, thereby improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of static penetration testing, and more specifically, to a static penetration testing device. Background Art

[0002] Static penetration testing refers to the use of a pressure device to press a penetration rod with a probe into the test soil layer. By measuring the penetration resistance of the soil through a measurement system, some basic physical and mechanical properties of the soil can be determined, such as the deformation modulus of the soil, the allowable bearing capacity of the soil, etc. There are three types of static penetration testing pressurization methods: mechanical, hydraulic, and manual. Static penetration testing is carried out on-site, and regression analysis is performed on the penetration resistance obtained from static penetration testing and related indicators of load tests and geotechnical tests. An empirical formula suitable for a certain area or a certain soil property can be obtained, and the natural foundation bearing capacity of the soil can be determined through the calculated indicators obtained from static penetration testing.

[0003] The basic principle of static penetration testing is to use quasi-static force to press a probe with a sensor inside into the soil at a uniform speed. Due to the different hardness of various soils in the strata, the resistance to the probe is naturally different. The sensor inputs the penetration resistance of different sizes into the recording instrument through electrical signals and records it. Then, through the qualitative relationship and statistical correlation between the penetration resistance and the engineering geological characteristics of the soil, the engineering geological survey purposes such as obtaining soil layer profiles, providing shallow foundation bearing capacity, selecting pile end bearing layers and estimating single pile bearing capacity can be achieved.

[0004] Static penetration technology has been widely used in engineering geological surveys on land, rivers, lakes and rivers. However, the offshore environment is complex. When conducting static penetration construction at sea, it is often necessary to rely on offshore operating platforms to complete the work. The work needs to be carried out on offshore operating platforms, which makes construction troublesome and the survey cost high.

[0005] In addition, the existing probe rod is generally composed of multiple sections, which often need to be manually tightened and spliced ​​before use, and manually tightening the probe rod is inefficient. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a static penetration device that does not rely on an offshore platform and is supported and fixed by a casing. It can quickly and conveniently complete offshore static penetration work, save survey costs, and can tighten and fix multiple sections of probe rods while performing static penetration work, thereby improving work efficiency.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a static penetration device, including a probe rod, a penetration mechanism, a rotating rod mechanism and a casing for fixing on the seabed, the penetration mechanism is installed on the casing, the rotating rod mechanism includes a third clamping mechanism and a rotation drive mechanism, the rotation drive mechanism and the third clamping mechanism are connected to drive the third clamping mechanism to rotate, and the third clamping mechanism clamps the probe rod.

[0008] In this device, the probe rod is used for static penetration, and the casing is used for installation on the seabed. By using the casing to fix the penetration mechanism, the static penetration construction does not need to rely on the offshore platform. The staff only needs to fix the casing in the area to be tested before the static penetration work can be carried out. When working, there is no need to splice multiple sections of the probe rod in advance and then carry it to the construction area. First, the single section of the probe rod is clamped and fixed by the third clamping mechanism. The end of the other section of the probe rod is first manually screwed into the first section of the probe rod. The rotary drive mechanism drives the third clamping mechanism to rotate, thereby driving the probe rod to rotate. The two sections of the probe rod are spliced ​​and fixed by screwing. Multiple sections of the probe rod can be assembled by repeating the above method. After the probe rod is installed, the probe rod is penetrated downward by the penetration mechanism so that the detection sensor at the end of the probe rod penetrates into the seabed to complete the static penetration work. Since the device is fixed by a probe rod fixed on the seabed, there is no need to build an offshore platform first when conducting offshore static penetration work, which can save a lot of cost and manpower. In addition, by using casing as a supporting platform for the penetration device, when it is necessary to survey multiple areas, the installation and fixation of the casing is simple, convenient and fast, which can well complete the survey layout of multiple regional points and improve the efficiency of the survey.

[0009] Furthermore, the penetration mechanism includes a first hydraulic cylinder, the first hydraulic cylinder includes a cylinder barrel, a first piston rod, a first clamping mechanism and a second clamping mechanism, the first clamping mechanism is connected to the end of the first piston rod, and the second clamping mechanism is connected to the cylinder barrel.

[0010] In the present device, the probe rod used for static penetration is clamped by the first clamping mechanism and the second clamping mechanism respectively. When penetration is performed, the second clamping mechanism releases the clamping force on the probe rod, the first clamping mechanism clamps the probe rod, the first hydraulic cylinder is started, and the first piston rod is pushed out to drive the first clamping mechanism to move downward, thereby driving the probe rod to move downward to achieve penetration. When the first piston rod is ejected to its maximum ejection stroke, the second clamping mechanism clamps the probe rod, the first clamping mechanism is released, and the position of the probe rod is fixed by the second clamping mechanism. The first hydraulic cylinder controls the first piston rod to move upward and reset. After resetting, the first clamping mechanism clamps the probe rod, and the second clamping mechanism releases the probe rod. The above actions are repeated to achieve continuous penetration of the probe rod. In addition, after the penetration work is completed, the probe rod needs to be taken out. In the process of taking out the probe rod, the first clamping mechanism first clamps the probe rod, the first piston rod moves upward to drive the probe rod to move upward, the second clamping mechanism clamps the probe rod, keeps the position of the probe rod to prevent the probe rod from falling under the action of gravity, the first clamping mechanism is released, and the probe rod is clamped again after the first piston rod moves downward, the second clamping mechanism is released, and the above actions are repeated to achieve the work of taking out the probe rod. The device has a simple structure. When performing the probe rod penetration action, the penetration work can be completed by a set of hydraulic cylinders, and the stability of the probe rod during penetration can be well maintained by the setting of the double clamping mechanism. In addition, the device can simultaneously realize the penetration and removal of the probe rod, and can avoid the problem of the probe rod falling due to gravity when taking out the probe rod. The probe rod can be quickly and conveniently penetrated and removed, and has good promotion value.

[0011] Further, the third clamping mechanism is a chuck, which includes a disc body, a movable clamping claw and a chuck seat, the disc body is rotatably arranged on the chuck seat, the rotation drive mechanism includes a motor and a gear connected to the motor output shaft, the upper surface of the disc body is provided with an Archimedean spiral groove, the lower surface is provided with a first thread tooth, the gear is meshed with the first thread tooth, and a plurality of movable clamping claws are arranged on the disc body, the movable clamping claw is provided with a second thread tooth, and the second thread tooth is meshed with the Archimedean spiral groove. The action of the motor drives the gear to rotate, and the chuck is driven to rotate by the gear. Since the upper surface of the chuck is provided with an Archimedean spiral groove meshed with the second thread tooth on the lower surface of the movable clamping claw, the movable clamping claw can be driven to move toward the rotation center while the chuck rotates to clamp the probe rod. After clamping the probe rod, the positions of the movable clamping claw and the chuck are relatively fixed, and the rotation of the chuck drives the movable clamping claw to rotate, thereby driving the probe rod to rotate.

[0012] Furthermore, the third clamping mechanism is installed on the second clamping mechanism through a shock absorber, the upper end of the shock absorber is connected to the chuck seat, and the lower end is fixed to the second clamping mechanism. Two shock absorbers are provided, symmetrically arranged at both ends of the chuck seat, and the shock absorbers can reduce the vibration when splicing multiple sections of the probe rod.

[0013] Furthermore, the two first hydraulic cylinders are arranged in parallel, the two ends of the first clamping mechanism are fixedly connected to the two first piston rods respectively, and the two ends of the second clamping mechanism are fixedly connected to the two cylinder barrels respectively. This device provides power for the penetration of the probe rod by using a group of hydraulic cylinders arranged in parallel, which can not only ensure the stability during penetration, but also provide sufficient penetration power. During the penetration process, the first clamping mechanism moves with the first piston rod to drive the probe rod to move, and the second clamping mechanism is fixed in position to fix the position of the probe rod.

[0014] Furthermore, the first clamping mechanism is installed and fixed to the first piston rod via a flange seat, two fixing ears fixedly connected to the end of the first piston rod are respectively arranged at both ends of the flange seat, and the bottom of the flange seat is detachably connected to the top of the sleeve.

[0015] Furthermore, the end of the casing is provided with a fixing plate, and the fixing plate and the flange seat are fixed by bolts. Specifically, the fixing plate and the end of the casing are an integrated structure, and corresponding fixing holes are provided on the fixing plate and the flange seat. During installation, bolts are passed through the two fixing holes to complete the fixing of the fixing plate and the flange seat, thereby installing the penetration device on the casing, so that the casing supports the penetration device on the water surface. This installation and fixing method is simple and convenient, and the penetration device and the casing can be separated, so as to facilitate the fixing of the casing on the seabed in the early stage.

[0016] Furthermore, the second clamping mechanism is connected to the outer wall of the cylinder barrel through a hoop body, the hoop body is fixedly mounted on the outer wall of the cylinder barrel, a mounting seat is provided on the hoop body, and both ends of the second clamping mechanism are fixedly mounted on the two mounting seats. According to actual needs, the installation position of the second clamping mechanism can be adjusted by the height position of the hoop body, and the fixing method of the hoop body can avoid damage to the cylinder barrel, so as to ensure the normal use of the hydraulic cylinder.

[0017] Furthermore, a through hole is provided in the middle of the flange seat, and the through hole is used to pass the probe rod. The movement of the first piston rod drives the flange seat to move, so as to realize the control of the action of the first clamping mechanism, wherein the clamping center of the first clamping mechanism and the center of the through hole are placed in the same straight line direction, and the diameter of the through hole is slightly larger than the outer diameter of the probe rod. When clamping, the through hole can play a guiding and centering role, and can ensure the stability of the penetration of the probe rod.

[0018] Furthermore, the first clamping mechanism and the second clamping mechanism each include a clamping seat, a first slider, a second slider, a second hydraulic cylinder and an adjusting bolt. The clamping seat is provided with a containing cavity. The first slider and the second slider are slidably arranged in the containing cavity. The first slider is provided with a first clamping block. The second slider is provided with a second clamping block. The first clamping block and the second clamping block are arranged relative to each other. The second hydraulic cylinder is provided with a second piston rod. The second piston rod is connected to the second slider. The adjusting bolt passes through the side wall of the clamping seat. The adjusting bolt is threadedly matched with the side wall of the clamping seat. The end of the adjusting bolt is connected to the first slider. Before clamping, according to the diameter of the probe rod used, the position of the first slider is controlled by adjusting the adjusting bolt to adapt to probe rods of different diameters and ensure the centration of the probe rod. After adjustment, the first clamping block just fits the outer wall of the probe rod, and the axial direction of the probe rod is the same as the movement direction of the first piston rod at this time, so as to ensure the centration of the probe rod during penetration and improve the penetration efficiency. After adjusting the position of the first clamping block, the second piston rod is controlled by the second hydraulic cylinder to drive the second slider to move toward the first slider until the second clamping block is in contact with the outer wall of the probe rod. The clamping is completed. The device can easily adjust the clamping position by adjusting the bolt and the hydraulic cylinder, and only by one-way clamping, the problem of poor centering of the probe rod due to inconsistent clamping forces between multiple hydraulic cylinders can be reduced.

[0019] Furthermore, the first clamping block and the second clamping block are provided with arc surfaces. When clamping the probe rod, the arc surfaces can just fit with the outer wall surface of the probe rod to increase the contact area between the clamping block and the outer wall surface of the probe rod, increase the friction between the clamping block and the probe rod, and make the clamping more stable.

[0020] Furthermore, the first clamping block and the second clamping block are provided with anti-skid pads, which can increase the friction between the clamping block and the outer wall of the probe rod to ensure that the probe rod can be clamped stably. Specifically, the anti-skid pad is an anti-skid silicone pad, which is elastic and can reduce surface damage to the probe rod during the clamping process.

[0021] Furthermore, a guide rod is provided in the accommodating chamber, guide holes are provided on the first slider and the second slider, the guide rod passes through the guide hole, and the second slider is slidably arranged on the guide rod. Specifically, the axial direction of the guide rod is consistent with the movement direction of the second piston rod. Specifically, the two guide rods are arranged in parallel in the clamping seat, and the guiding effect of the guide rod can make the movement of the slider more stable, thereby preventing the slider from swinging during movement.

[0022] When using this device to perform offshore static penetration testing, there is no need to rely on an offshore platform. The staff only needs to take a boat to the area to be tested, fix the casing, install the penetration device on the top of the casing, and then drive the probe rod through the penetration device to complete the static penetration testing. In particular, the top of the casing is set above the water surface to facilitate the installation of the penetration device. When using this method to perform offshore static penetration testing, there is no need to build an offshore platform first, which can save a lot of cost and manpower. In addition, by using the casing as a supporting platform for the penetration device, when it is necessary to survey multiple areas, the installation and fixation of the casing is simple, convenient and fast, which can well complete the survey layout of multiple regional points and improve the efficiency of the survey.

[0023] In addition, when the probe rod is penetrated, the probe rod is placed inside the casing, so that the casing can not only support the penetration device, but also protect the probe rod.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The method and device use casing to support and fix the penetration device. Compared with the existing static penetration test which needs to rely on the offshore platform, the method and device can greatly reduce the cost of building the offshore platform. In addition, by using the casing fixation form, the layout of the survey area can be completed quickly and conveniently, and the survey results are less affected by the sea surface fluctuations, which can improve the accuracy of the survey;

[0026] 2. The penetration device and casing of this device are detachably connected, which can facilitate the installation of the penetration device after fixing the casing in the early stage;

[0027] 3. The penetration device has a simple structure and adopts a double clamping mechanism to well complete the penetration and removal of the probe rod, and the control and maintenance are simple. In addition, the device adopts an adjusting bolt and a hydraulic cylinder to clamp the probe rod, which can not only ensure the stability of the clamping, but also maintain the centering of the probe rod, which can greatly improve the penetration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a device in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0030] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0031] Figure 4A schematic diagram of the structure of a first clamping mechanism and a second clamping mechanism in one embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a rotating rod mechanism in one embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of a disc and a gear in one embodiment of the present invention;

[0034] Figure 7 for Figure 6 A top view of

[0035] Figure 8 The figure is a schematic diagram of the structure of the movable claw in one embodiment of the present invention. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0037] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] Example

[0039] like Figure 1 As shown, a static penetration device includes a probe rod 01, at the end of which a detection sensor is arranged, and static penetration is achieved by penetrating the probe rod 01 into the seabed. The device also includes a penetration mechanism, a rotating rod mechanism 70, and a casing 60 for fixing on the seabed, wherein the casing 60 is fixed on the seabed of the survey area, and the upper end of the casing 60 is exposed above the water surface, and the penetration device is detachably mounted on the upper end of the casing 60.

[0040] In this device, the penetration device includes a first hydraulic cylinder, which includes a cylinder barrel 10 and a first piston rod 20. The first piston rod 20 is movably arranged in the cylinder barrel 10. Two first hydraulic cylinders are arranged in parallel and act synchronously. The two ends of the first clamping mechanism 32 are respectively fixedly connected to the ends of the two first piston rods 20. Two second clamping mechanisms 31 are arranged between the two cylinder barrels 10, and the two ends of the second clamping mechanism 31 are respectively fixed to the two cylinder barrels 10. By using a group of parallel hydraulic cylinders to provide power for the penetration of the probe rod 01, it can not only ensure the stability during the penetration, but also provide sufficient penetration power. During the penetration process, the first clamping mechanism 32 moves with the first piston rod 20 to drive the probe rod 01 to move, and the second clamping mechanism 31 is fixed in position to fix the position of the probe rod 01.

[0041] Specifically, Figure 2 , 3 As shown, the clamping centers of the first clamping mechanism 32 and the second clamping mechanism 31 are located in the same straight line direction. In this embodiment, the first clamping mechanism 32 is fixed to the ends of the two first piston rods 20 through the flange seat 50. A through hole is provided in the middle of the flange seat 50. The diameter of the through hole is slightly larger than the diameter of the probe rod 01. The probe rod 01 can pass through the through hole to penetrate into the seabed. Specifically, two fixing ears 501 fixedly connected to the ends of the first piston rod 20 are respectively provided at both ends of the flange seat 50. The bottom of the flange seat 50 is detachably connected to the top of the sleeve 60.

[0042] A fixing plate 601 is provided at the end of the casing 60, and the fixing plate 601 and the flange seat 50 are fixed by bolts. Specifically, the fixing plate 601 and the end of the casing 60 are an integrated structure, and corresponding fixing holes are provided on the fixing plate 601 and the flange seat 50. During installation, bolts are passed through the two fixing holes to complete the fixing of the fixing plate 601 and the flange seat 50, thereby installing the penetration device on the casing 60 so that the casing 60 supports the penetration device on the water surface. This installation and fixing method is simple and convenient, and the penetration device and the casing 60 can be separated, so as to facilitate the fixing of the casing 60 on the seabed in the early stage.

[0043] In this embodiment, the clamping center of the first clamping mechanism 32 and the through hole are placed in the same straight line direction, and the movement of the first piston rod 20 drives the flange seat 50 to move, so as to control the action of the first clamping mechanism 32. During the penetration process, the through hole can play a guiding and centering role, thereby ensuring the stability of the penetration of the probe rod 01.

[0044] In addition, in this embodiment, the second clamping mechanism 31 is connected to the outer wall of the cylinder barrel 10 through the hoop body 40, the hoop body 40 is sleeved and fixed on the outer wall of the cylinder barrel 10, the hoop body 40 is provided with a mounting seat, and the two ends of the second clamping mechanism 31 are respectively fixedly mounted on the two mounting seats. According to actual needs, the installation position of the second clamping mechanism 31 can be adjusted by the height position of the sleeve of the hoop body 40, and the fixing method of the hoop body 40 can avoid damage to the cylinder barrel 10, so as to ensure the normal use of the hydraulic cylinder.

[0045] In particular, such as Figure 4 As shown, the first clamping mechanism 32 and the second clamping mechanism 31 both include a clamping seat 303, a first slider 306, a second slider 304, a second hydraulic cylinder 301 and an adjusting bolt 308. A accommodating chamber is provided in the clamping seat 303, the first slider 306 and the second slider 304 are slidably arranged in the accommodating chamber, the first slider 306 is provided with a first clamping block 307, the second slider 304 is provided with a second clamping block 305, the first clamping block 307 and the second clamping block 305 are arranged opposite to each other, the second hydraulic cylinder 301 is provided with a second piston rod 302, the second piston rod 302 is connected to the second slider 304, the adjusting bolt 308 passes through the side wall of the clamping seat 303, the adjusting bolt 308 is threadedly matched with the side wall of the clamping seat 303, and the end of the adjusting bolt 308 is connected to the first slider 306. Before clamping, according to the diameter of the probe rod 01 used, the position of the first slider 306 is controlled by adjusting the adjusting bolt 308 to adapt to probe rods 01 of different diameters and ensure the centration of the probe rod 01. After adjustment, the first clamping block 307 just fits the outer wall of the probe rod 01, and the axial direction of the probe rod 01 is the same as the movement direction of the first piston rod 20 at this time, so as to ensure the centration of the probe rod 01 during penetration and improve the penetration efficiency. After adjusting the position of the first clamping block 307, the second piston rod 302 is controlled by the second hydraulic cylinder 301 to drive the second slider 304 to move toward the first slider 306 until the second clamping block 305 fits the outer wall of the probe rod 01 to complete the clamping. The device can conveniently adjust the clamping position through the cooperation of the adjusting bolt 308 and the hydraulic cylinder, and can reduce the problem of poor centration of the probe rod 01 due to inconsistent clamping forces between multiple hydraulic cylinders by only one-way clamping. In particular, in order to facilitate the operation of the adjusting bolt 308 , a handle is provided on one end of the adjusting bolt 308 protruding from the outer wall of the clamping seat 303 , and the handle can facilitate the staff to adjust the adjusting bolt 308 .

[0046] The first clamping block 307 and the second clamping block 305 are provided with arc surfaces. When clamping the probe rod 01, the arc surface can just fit with the outer wall surface of the probe rod 01 to increase the contact area between the clamping block and the outer wall surface of the probe rod 01, increase the friction between the clamping block and the probe rod 01, and make the clamping more stable. The first clamping block 307 and the second clamping block 305 are provided with anti-skid pads, which are fitted with the arc surface. The anti-skid pads can increase the friction between the clamping block and the outer wall surface of the probe rod 01 to ensure that the probe rod 01 can be clamped stably. Specifically, the anti-skid pad is an anti-skid silicone pad, which is elastic and can reduce the surface damage to the probe rod 01 caused during the clamping process.

[0047] In addition, a guide rod 309 is provided in the accommodating cavity, and guide holes are provided on the first slider 306 and the second slider 304. The guide rod 309 passes through the guide hole, and the second slider 304 is slidably arranged on the guide rod 309. Specifically, the axial direction of the guide rod 309 is consistent with the movement direction of the second piston rod 302. Specifically, the two guide rods 309 are arranged in parallel in the clamping seat 303. The guiding effect of the guide rod 309 can make the movement of the slider more stable, thereby preventing the slider from swinging during movement.

[0048] In this embodiment, if Figure 5-8As shown, the rotary rod mechanism 70 includes a third clamping mechanism and a rotary drive mechanism. The third clamping mechanism is a three-jaw chuck. Specifically, the three-jaw chuck includes a disc body 701, three movable jaws 702 and a chuck seat 703. The three movable jaws 702 are respectively arranged on the disc body 701 in a centrally symmetrical manner, and the movable jaws 702 are movably connected to the chuck seat 703. The rotary drive mechanism includes a motor 704 and a gear 705 connected to the output shaft of the motor 704. The upper surface of the disc body 701 is provided with an Archimedean spiral groove 7011, and the lower surface is provided with a first thread tooth 7012. The gear 705 is meshed with the first thread tooth 7012. A plurality of movable jaws 702 are arranged on the disc body 701. The movable jaws 702 are provided with a second thread tooth 7021, and the second thread tooth 7021 is meshed with the Archimedean spiral groove 7011. The action of the motor 704 drives the gear 705 to rotate, and the gear 705 drives the chuck to rotate. Since the upper surface of the chuck is provided with an Archimedean spiral groove 7011 that meshes with the second threaded teeth 7021 on the lower surface of the movable claw 702, the movable claw 702 can be driven to move toward the rotation center while the chuck rotates, so as to clamp the probe rod 01. After clamping the probe rod 01, the positions of the movable claw 702 and the chuck are relatively fixed, and the rotation of the chuck drives the movable claw 702 to rotate, thereby driving the probe rod 01 to rotate. In this embodiment, in addition to using a three-jaw chuck, a four-jaw chuck that can stably clamp the probe rod 01 can also be used. In this embodiment, only a three-jaw chuck is used as an example, and the use of other chucks is not limited. In particular, anti-slip grooves are provided on the clamping end surface of the movable claw 702 to ensure that the probe rod 01 can be better clamped.

[0049] In addition, the third clamping mechanism is installed on the second clamping mechanism 31 through a shock absorber 706, the upper end of the shock absorber 706 is connected to the chuck seat 703, and the lower end is fixed to the second clamping mechanism 31. Two shock absorbers 706 are provided, symmetrically arranged at both ends of the chuck seat 703, and the shock absorbers 706 can reduce the vibration when splicing multiple sections of the probe rod 01.

[0050] When using this device for offshore static penetration testing, there is no need to build an offshore platform, nor is it necessary to splice multiple sections of the probe rod 01 in advance before carrying it to the construction area, which can save a lot of cost and manpower. First, the single section of the probe rod 01 is clamped and fixed by a three-jaw chuck, and the end of the other section of the probe rod 01 is manually screwed into the first section of the probe rod 01. The staff also holds the probe rod 01 by hand, starts the motor 704 to drive the three-jaw chuck to move, thereby driving the probe rod 01 to rotate. The two sections of the probe rod 01 are spliced ​​and fixed by screwing together, and the multiple sections of the probe rod 01 can be assembled by repeating the above methods.

[0051] In addition, by using the casing 60 as a support platform for the penetration device, when multiple areas need to be surveyed, the installation and fixation of the casing 60 is simple, convenient and fast, and the survey layout of multiple areas can be well completed, thereby improving the efficiency of the survey. The staff first takes a boat to the area to be surveyed, and after fixing the casing 60, the penetration device is installed on the top of the casing 60, and then the probe rod 0101 is driven and penetrated by the penetration device to complete the static penetration work. Specifically, the probe rod 01 used for static penetration is clamped by the first clamping mechanism 32 and the second clamping mechanism 31 respectively. When penetration is performed, the second clamping mechanism 31 releases the clamping force on the probe rod 01, and the first clamping mechanism 32 clamps the probe rod 01. The first hydraulic cylinder is started and the first piston rod 20 is pushed out to drive the first clamping mechanism 32 to move downward, thereby driving the probe rod 01 to move downward to achieve penetration. When the first piston rod 20 is ejected to its maximum ejection stroke, the second clamping mechanism 31 clamps the probe rod 01, and the first clamping mechanism 32 is released. The position of the probe rod 01 is fixed by the second clamping mechanism 31, and the first hydraulic cylinder controls the first piston rod 20 to move upward and reset. After resetting, the first clamping mechanism 32 clamps the probe rod 01, and the second clamping mechanism 31 releases the probe rod 01. The above actions are repeated to achieve continuous penetration of the probe rod 01. In addition, after the penetration work is completed, the probe rod 01 needs to be taken out. In the process of taking out the probe rod 01, the first clamping mechanism 32 first clamps the probe rod 01, the first piston rod 20 moves upward to drive the probe rod 01 to move upward, the second clamping mechanism 31 clamps the probe rod 01, keeps the position of the probe rod 01 to prevent the probe rod 01 from falling under the action of gravity, the first clamping mechanism 32 is released, and the first piston rod 20 moves downward to clamp the probe rod 01 again, the second clamping mechanism 31 is released, and the above actions are repeated to achieve the work of taking out the probe rod 01. The device has a simple structure. When the probe rod 01 is penetrated, the penetration work can be completed by a set of hydraulic cylinders, and the stability of the probe rod 01 during penetration can be well maintained by the setting of the double clamping mechanism. In addition, the device can simultaneously realize the penetration and removal of the probe rod 01, and when taking out the probe rod 01, the problem of the probe rod 01 falling due to gravity can be avoided. The probe rod 01 can be quickly and conveniently penetrated and removed, and has good promotion value.

[0052] In particular, the top of the casing 60 is arranged above the water surface to facilitate the installation of the penetration device. In addition, when the probe rod 01 is penetrated, the probe rod 01 is placed inside the casing 60, so that the casing 60 can not only support the penetration device, but also protect the probe rod 01.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A static penetration device, comprising a probe rod (01), characterized in that: The invention also comprises a penetration mechanism, a rotating rod mechanism (70) and a casing (60) for fixing on the seabed, wherein the penetration mechanism is installed on the casing (60), the rotating rod mechanism (70) comprises a third clamping mechanism and a rotation driving mechanism, the rotation driving mechanism and the third clamping mechanism are connected to drive the third clamping mechanism to rotate, and the third clamping mechanism clamps the probe rod (01); the penetration mechanism comprises a first hydraulic cylinder, the first hydraulic cylinder comprises a cylinder barrel (10), a first piston rod (20), a first clamping mechanism (32) and a second clamping mechanism (31), the first clamping mechanism (32) and the first piston rod (20) are connected to each other to form a plurality of hydraulic cylinders, wherein ... The plug rod (20) is connected to the end thereof, the second clamping mechanism (31) is connected to the cylinder barrel (10); the third clamping mechanism is a chuck, the chuck comprises a chuck body (701), a movable clamping claw (702) and a chuck seat (703), the chuck body (701) is rotatably arranged on the chuck seat (703), the rotation driving mechanism comprises a motor (704) and a gear (705) connected to the output shaft of the motor (704), the upper surface of the chuck body (701) is provided with an Archimedean spiral groove (7011), the lower surface is provided with a first thread tooth (7012), the gear (705) is connected to the chuck seat (703), and the gear (705) is connected to the chuck seat (703). The first thread teeth (7012) are meshed with each other, and a plurality of movable claws (702) are arranged on the disc body (701), and the movable claws (702) are provided with second thread teeth (7021), and the second thread teeth (7021) are meshed with the Archimedean spiral groove (7011); the third clamping mechanism is installed on the second clamping mechanism (31) through a damper (706), and the upper end of the damper (706) is connected to the chuck seat (703), and the lower end is fixed on the second clamping mechanism (31); the two first hydraulic cylinders are arranged in parallel, and the first clamping mechanism (32) is divided into two ends. The two first piston rods (20) are fixedly connected to each other, and the two ends of the second clamping mechanism (31) are fixedly connected to the two cylinder barrels (10) respectively; the first clamping mechanism (32) is installed and fixed to the first piston rod (20) through a flange seat (50), and the two ends of the flange seat (50) are respectively provided with two fixing ears (501) fixedly connected to the ends of the first piston rod (20), and the bottom of the flange seat (50) is detachably connected to the top of the sleeve (60); the end of the sleeve (60) is provided with a fixing plate (601), and the fixing plate (601) and the flange seat (50) are fixed by bolts;The first clamping mechanism (32) and the second clamping mechanism (31) both comprise a clamping seat (303), a first slider (306), a second slider (304), a second hydraulic cylinder (301) and an adjusting bolt (308); the clamping seat (303) is provided with a receiving cavity; the first slider (306) and the second slider (304) are slidably arranged in the receiving cavity; the first slider (306) is provided with a first clamping block (307); the second slider (304) is provided with a second Two clamping blocks (305), the first clamping block (307) and the second clamping block (305) are arranged opposite to each other, the second hydraulic cylinder (301) is provided with a second piston rod (302), the second piston rod (302) is connected to the second slider (304), the adjusting bolt (308) passes through the side wall of the clamping seat (303), the adjusting bolt (308) is threadedly matched with the side wall of the clamping seat (303), and the end of the adjusting bolt (308) is connected to the first slider (306). ; 2. A static penetration device according to claim 1, characterized in that: The first clamping block (307) and the second clamping block (305) are provided with arc surfaces.

3. A static penetration device according to claim 2, characterized in that: A guide rod (309) is provided in the accommodating cavity, guide holes are provided on the first slider (306) and the second slider (304), the guide rod (309) passes through the guide holes, and the second slider (304) is slidably arranged on the guide rod (309).

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