Offshore static sounding penetration structure

Abstract

The utility model relates to the technical field of static sounding equipment, and discloses an offshore static sounding penetration structure which comprises a pulley block installed on the sounding equipment, a guide rail installed on the sounding equipment and an installation plate installed on the sounding equipment. The sliding block can be driven by the transmission steel cable to move vertically, the probe rod is driven by the first clamping mechanism fixed to the sliding block to be slowly inserted into sediment at a constant speed, and the insertion depth is measured by the displacement sensor on the sliding block. The penetration oil cylinder drives the transmission steel cable to vertically move the sliding block upwards, the probe rod can be lifted out of sediment, the hydraulic cylinder is adopted to drive the pulley block, the overall height of equipment can be reduced, meanwhile, the moving stroke of the probe rod is guaranteed, and then the stability of the equipment on the seabed is guaranteed; and the probe rod can be clamped through the second clamping mechanism when the equipment is in a standby state, so that the probe rod is prevented from sliding off.

Description

Technical Field

[0001] This utility model patent relates to the field of static cone penetration testing equipment technology, and more specifically, to a marine static cone penetration structure. Background Technology

[0002] The investigation and research of seabed soil properties is an essential part of the construction of marine engineering projects such as offshore oil platforms, submarine tunnels, oil and gas pipelines, and optical cables. The study of sediment properties at depths of several meters to tens of meters below the seabed is of great significance for marine environmental surveys, seabed resource exploration, and marine development and utilization. The offshore static cone penetration test is a simple, economical, efficient, and reliable in-situ measurement method for seabed soil, and it has broad application prospects in marine engineering surveys and geological disaster research.

[0003] Since the 1970s, some research institutes and universities in China have developed several marine static cone penetration testing (DCPT) devices. For example, in 1973, the Institute of Oceanology, Chinese Academy of Sciences, developed my country's first seabed-type underwater static cone penetration testing device. Its power unit used an underwater motor to drive mechanical transmission for penetration; however, the device's measurement depth was relatively shallow, resulting in low operational efficiency and relatively high risks and difficulties. In 2001, the Guangzhou Marine Geological Survey developed a borehole-type static cone penetration testing device, the first in China to use a hydraulic drive system. It could operate at a water depth of 100m and a penetration depth of 120m. This borehole-type static cone penetration testing device… The requirements for survey vessels are high, generally requiring large survey and construction vessels to operate, which limits the widespread application of such equipment. In 2005, the Engineering Technology Research Institute of Jilin University developed the "Shallow Seabed Static Cone Penetration Test System," etc. This equipment uses a flexible steel probe rod penetration method. The equipment was only tested at sea and has not yet become a mature product. The development of these static cone penetration devices has promoted the development of static cone penetration technology in my country. However, for various reasons, they have not been widely used in actual engineering surveys. In view of the current situation, there is an urgent need to develop our own marine static cone penetration equipment. Utility Model Content

[0004] The purpose of this invention is to provide a static cone penetration test structure for marine applications, aiming to solve the problems of shallow measurement depth and low operational efficiency in existing cone penetration test structures.

[0005] This utility model is implemented as follows: a marine static cone penetration test structure includes a pulley block mounted on a cone penetration test device, a guide rail mounted on the cone penetration test device, and a mounting plate mounted on the cone penetration test device. The pulley block consists of multiple fixed pulleys and two movable pulleys. A transmission steel cable is wound around the pulley block. A sliding block is slidably arranged on the guide rail and clamped and fixed on the transmission steel cable. The movable pulleys located below are connected to the actuation output end of the penetration cylinder. A motor is mounted on the sliding block, and a probe rod extending downward through the sliding block is mounted on the power output shaft of the motor. A first clamping mechanism is provided on the sliding block, and a second clamping mechanism is provided on the mounting plate. The probe rod is clamped between the first clamping mechanism and the second clamping mechanism. A displacement sensor is provided on the sliding block.

[0006] Preferably, the first clamping mechanism is located directly above the second clamping mechanism, and the first clamping mechanism and the second clamping mechanism have the same internal structure.

[0007] Preferably, the sliding block has two symmetrical guide rail slots that are adapted to the guide rail.

[0008] Preferably, the two movable pulleys in the pulley block are connected by a connecting device, and the distance between the two movable pulleys is a fixed value.

[0009] Preferably, the sliding block has a rectangular through hole for the transmission steel cable to pass through, and a clamping block is slidably installed in the rectangular through hole.

[0010] Preferably, the sliding block has a threaded hole, and a threaded rod is threadedly connected inside the threaded hole. One end of the threaded rod is rotatably mounted on the abutment block, and the other end of the threaded rod is provided with an adjusting handwheel.

[0011] Preferably, one side of the inner wall of the rectangular perforation is arc-shaped, and an arc-shaped groove is provided on the side of the abutting block near the arc-shaped inner wall. Multiple inclined anti-slip grooves are provided along the axial direction at the arc-shaped groove.

[0012] Preferably, both the first and second clamping mechanisms have a transmission cavity, in which a hydraulic telescopic cylinder is arranged. A movable slider is slidably installed in the transmission cavity, with one end of the movable slider welded to the actuation output end of the hydraulic telescopic cylinder. Two transmission sliders are slidably installed in the transmission cavity, and each of the two transmission sliders has a protruding sliding shaft. Two guide grooves that are symmetrical to each other and adapted to the sliding shafts are opened on the transmission sliders. The sliding shafts on the two transmission sliders are respectively slidably arranged in the two guide grooves. A clamping block that penetrates the transmission cavity and extends to the outside is protruding on the side of the two transmission sliders that are close to each other.

[0013] Preferably, the transmission cavity is connected to two symmetrical guide rods, and each of the two transmission sliders has a sliding hole adapted to the guide rod. The two transmission sliders are slidably arranged on the two guide rods through the sliding hole.

[0014] Preferably, the cross-section of the transmission cavity is C-shaped, and two symmetrical through holes are opened on the inner wall of the transmission cavity. The clamping blocks on the two transmission sliders extend to the outside through the two through holes respectively. The ends of the two clamping blocks that are close to each other are arc-shaped and the recessed parts are provided with multiple anti-slip rubber strips at intervals.

[0015] Compared with existing technologies, the marine static cone penetration test structure provided by this utility model, through the cooperation of pulley blocks, penetration cylinders, transmission cables, and probes, allows the probes to be inserted slowly and uniformly into the sediment by means of the operation of the penetration cylinder, which changes the position of the two movable pulleys. This movement is then driven by the transmission cable to move the sliding block vertically. The probe is then slowly and uniformly inserted into the sediment by a first clamping mechanism fixed on the sliding block. The insertion depth is measured by a displacement sensor on the sliding block. When the probe needs to be lifted, the penetration cylinder drives the transmission cable to move the sliding block vertically upward, thus lifting the probe out of the sediment. Because the pulley blocks are driven by a hydraulic cylinder, the overall height of the equipment is reduced while ensuring the travel of the probe, thereby ensuring the stability of the equipment on the seabed. The second clamping mechanism can hold the probe when the equipment is idle to prevent it from slipping. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the marine static cone penetration test structure provided by this utility model;

[0017] Figure 2 This is a schematic diagram of the top cross-sectional structure of the sliding block of the marine static cone penetration test structure provided by this utility model.

[0018] Figure 3 This is a side view cross-sectional structural diagram of the sliding block and threaded rod of the marine static cone penetration test structure provided by this utility model.

[0019] Figure 4 This is a top view cross-sectional structural diagram of the transmission slider and the movable slider of the marine static cone penetration test structure provided by this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Fixed pulley; 2. Insertion cylinder; 3. Movable pulley; 4. Transmission cable; 5. Guide rail; 6. Sliding block; 7. Motor; 8. First clamping mechanism; 9. Mounting plate; 10. Second clamping mechanism; 11. Probe rod; 12. Movable slider; 13. Transmission cavity; 14. Hydraulic telescopic cylinder; 15. Transmission slider; 16. Clamping block; 17. Through hole; 18. Rectangular through hole; 19. Anchoring block; 20. Guide rail slot; 21. Adjusting handwheel; 22. Threaded rod; 23. Threaded hole; 24. Sliding shaft; 25. Guide groove; 26. Guide rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0026] The offshore static cone penetration test structure includes a pulley block mounted on the cone penetration test equipment, a guide rail 5 mounted on the cone penetration test equipment, and a mounting plate 9 mounted on the cone penetration test equipment. The pulley block consists of multiple fixed pulleys 1 and two movable pulleys 3. A transmission steel cable 4 is wound around the pulley block. A sliding block 6 is slidably arranged on the guide rail 5. The sliding block 6 is clamped and fixed on the transmission steel cable 4. The movable pulley 3 located below is connected to the actuation output end of the penetration cylinder 2. A motor 7 is installed on the sliding block 6. A probe rod 11 that passes through the sliding block 6 and extends downward is installed on the power output shaft of the motor 7. A first clamping mechanism 8 is installed on the sliding block 6. A second clamping mechanism 10 is installed on the mounting plate 9. The probe rod 11 is clamped on the first clamping mechanism 8 and the second clamping mechanism 10. A displacement sensor is installed on the sliding block 6.

[0027] During operation, the hydraulic cylinder 2 operates, causing the positions of the two movable pulleys 3 to change. This, in turn, drives the sliding block 6 to move vertically via the transmission cable 4. The first clamping mechanism 8, fixed to the sliding block 6, drives the probe rod 11 to be slowly and uniformly inserted into the sediment. The insertion depth is measured by the displacement sensor on the sliding block 6. When the probe rod 11 needs to be lifted, the hydraulic cylinder 2 drives the transmission cable 4 to move the sliding block 6 vertically upward, thus lifting the probe rod 11 out of the sediment. Because the hydraulic cylinder drives the pulley set 3, the overall height of the equipment can be reduced while ensuring the travel of the probe rod 11, thereby ensuring the stability of the equipment on the seabed. The second clamping mechanism 10 can clamp the probe rod 11 when the equipment is idle, preventing the probe rod 11 from slipping.

[0028] Specifically, in this embodiment, the first clamping mechanism 8 is located directly above the second clamping mechanism 10, and the internal structure of the first clamping mechanism 8 and the second clamping mechanism 10 is the same.

[0029] Since the first clamping mechanism 8 and the second clamping mechanism 10 are on the same vertical axis, the probe rod 11 can be clamped by the second clamping mechanism 10 when the equipment is in standby mode, thus preventing the probe rod 11 from slipping.

[0030] Specifically, in this embodiment, the sliding block 6 has two symmetrical guide rail slots 20 that are adapted to the guide rail 5.

[0031] The guide rail slot 20 allows the sliding block 6 to move axially on the guide rail 5.

[0032] Specifically, in this embodiment, the two movable pulleys 3 in the pulley block are connected by a connecting device, and the distance between the two movable pulleys 3 is a fixed value.

[0033] Specifically, in this embodiment, the sliding block 6 has a rectangular through hole 18 for the transmission steel cable 4 to pass through, and a clamping block 19 is slidably installed in the rectangular through hole 18. The sliding block 6 has a threaded hole 23, and a threaded rod 22 is threadedly connected in the threaded hole 23. One end of the threaded rod 22 is rotatably installed on the clamping block 19, and the other end of the threaded rod 22 is provided with an adjusting handwheel 21.

[0034] Through the cooperation of the rectangular through hole 18, the clamping block 19, and the threaded rod 22, when the sliding block 6 is connected to the transmission steel cable 4, the transmission steel cable 4 is passed through the rectangular through hole 18 on the sliding block 6. By rotating the adjusting handwheel 21, the threaded rod 22 is rotated, and the clamping block 19 is brought close to the transmission steel cable 4 through the threaded screwing relationship, and the transmission steel cable 4 is pressed against the inner wall of the rectangular through hole 18, so as to achieve the purpose of clamping and fixing the sliding block 6 to the transmission steel cable 4.

[0035] Specifically, in this embodiment, one side of the inner wall of the rectangular perforation 18 is arc-shaped, and the side of the pressing block 19 near the arc-shaped inner wall is provided with an arc-shaped groove. Multiple inclined anti-slip grooves are provided along the axial direction at the arc-shaped groove, which can effectively improve the friction between the pressing block 19 and the inner wall of the rectangular perforation 18 and the transmission steel cable 4 when the pressing block 19 presses the transmission steel cable 4 against the arc-shaped inner wall, thereby ensuring the stability of the connection between the sliding block 6 and the transmission steel cable 4.

[0036] Specifically, in this embodiment, both the first clamping mechanism 8 and the second clamping mechanism 10 have a transmission cavity 13. A hydraulic telescopic cylinder 14 is arranged in the transmission cavity 13. A movable slider 12 is slidably installed in the transmission cavity 13. One end of the movable slider 12 is welded to the actuation output end of the hydraulic telescopic cylinder 14. Two transmission sliders 15 are slidably installed in the transmission cavity 13. Each of the two transmission sliders 15 has a protruding sliding shaft 24. Two guide grooves 25 are provided on the transmission sliders 15, which are symmetrical to each other and adapted to the sliding shafts 24. The sliding shafts 24 on the two transmission sliders 15 are slidably arranged in the two guide grooves 25 respectively. On the side of the two transmission sliders 15 that are close to each other, a clamping block 16 is protruding through the transmission cavity 13 and extending to the outside.

[0037] Through the cooperation of the movable slider 12 and the transmission slider 15, when it is necessary to clamp the probe rod 11, the movable slider 12 can be driven to move axially in the transmission cavity 13 by the hydraulic telescopic cylinder 14. At the same time, through the cooperation of the two guide grooves 25 on the movable slider 12 and the sliding shafts 24 on the two transmission sliders 15, the guide grooves 25 restrict the sliding shafts 24 when the movable slider 12 moves, so that the two transmission sliders 15 can move closer or further away from each other synchronously, thereby achieving the purpose of clamping and fixing the probe rod 11.

[0038] Specifically, in this embodiment, two symmetrical guide rods 26 are connected inside the transmission cavity 13. Each of the two transmission sliders 15 has a sliding hole adapted to the guide rod 26. The two transmission sliders 15 are slidably arranged on the two guide rods 26 through the sliding hole.

[0039] By providing the guide rod 26 and the sliding hole, the transmission slider 15 can slide along the guide rod 26 through the sliding hole, which guides the movement direction of the transmission slider 15 and makes the movement of the transmission slider 15 smoother and more stable.

[0040] Specifically, in this embodiment, the cross-section of the transmission cavity 13 is C-shaped, and two symmetrical through holes 17 are opened on the inner wall of the transmission cavity 13. The clamping blocks 16 on the two transmission sliders 15 extend to the outside through the two through holes 17 respectively. The ends of the two clamping blocks 16 that are close to each other are arc-shaped and multiple anti-slip rubber strips are provided at intervals in the recessed areas. This can effectively ensure the friction between the clamping blocks 16 and the probe rod 11 when the clamping blocks 16 clamp the probe rod 11, thereby ensuring the stability when clamping the probe rod 11.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seabed static cone penetration structure, characterized in that, The utility model provides a kind of probe device, including the pulley block mounted on the probe device, the guide rail mounted on the probe device and the mounting plate mounted on the probe device, the pulley block is made of multiple fixed pulley and two movable pulleys, transmission cable is wound on the pulley block, sliding block is slidably arranged on the guide rail, sliding block is clamped and fixed on transmission cable, the movable pulley arranged below is connected on the action output end of penetration oil cylinder, motor is provided on the sliding block, motor power output shaft is provided with the probe rod that penetrates sliding block and extends downward, first clamping mechanism is provided on the sliding block, second clamping mechanism is provided on the mounting plate, the probe rod is clamped on first clamping mechanism and second clamping mechanism, displacement sensor is provided on the sliding block.

2. The offshore static cone penetration apparatus of claim 1, wherein, The first clamping mechanism is arranged directly above the second clamping mechanism, and the internal structures of the first clamping mechanism and the second clamping mechanism are the same.

3. The offshore static cone penetration apparatus of claim 1, wherein, Two guide rail clamping grooves that are symmetrical to each other and matched with the guide rail are formed in the sliding block.

4. The offshore static cone penetration apparatus of claim 1, wherein, The two movable pulleys in the pulley block are connected by a connecting device, and the distance between the two movable pulleys is a fixed value.

5. The offshore static cone penetration apparatus of claim 1, wherein, A rectangular through hole for the transmission cable to pass through is formed in the sliding block, and a abutting block is slidably installed in the rectangular through hole.

6. The offshore static cone penetration apparatus of claim 5, wherein, A threaded hole is formed in the sliding block, a threaded rod is threadedly connected in the threaded hole, one end of the threaded rod is rotatably installed on the abutting block, and the other end of the threaded rod is provided with an adjusting hand wheel.

7. The offshore static cone penetration apparatus of claim 5, wherein, The inner wall of one side of the rectangular through hole is arc-shaped, an arc-shaped recess is formed in the side of the abutting block close to the arc-shaped inner wall, and a plurality of anti-skid grooves in an inclined shape are formed in the axial direction at the arc-shaped recess.

8. The offshore static cone penetration apparatus of claim 1, wherein, A transmission cavity is formed in each of the first clamping mechanism and the second clamping mechanism, a hydraulic telescopic cylinder is arranged in the transmission cavity, a movable sliding block is slidably installed in the transmission cavity, one end of the movable sliding block is welded to the action output end of the hydraulic telescopic cylinder, two transmission sliding blocks are slidably installed in the transmission cavity, a sliding shaft is protruded on each of the two transmission sliding blocks, two guide grooves that are symmetrical to each other and matched with the sliding shaft are formed in the transmission sliding block, the sliding shafts on the two transmission sliding blocks are slidably arranged in the two guide grooves respectively, and a clamping block that penetrates the transmission cavity and extends to the outside is protruded on each of the sides of the two transmission sliding blocks close to each other.

9. The offshore static cone penetration apparatus of claim 8, wherein, Two guide rods that are symmetrical to each other are connected in the transmission cavity, a sliding hole matched with the guide rod is formed in each of the two transmission sliding blocks, and the two transmission sliding blocks are slidably arranged on the two guide rods through the sliding holes.

10. The offshore static cone penetration apparatus of claim 8, wherein, The cross section of the transmission cavity is C-shaped, two through holes that are symmetrical to each other are formed in the inner wall of the transmission cavity, the clamping blocks on the two transmission sliding blocks extend to the outside through the two through holes respectively, and the ends of the two clamping blocks close to each other are arc-shaped and recessed and are provided with a plurality of anti-skid rubber strips at intervals.

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