A high-viscosity mud deep sampling device

Abstract

The utility model discloses a kind of high viscosity mud deep sampling devices, it is related to sampling technical field, including fixed platform, further include: sampling cylinder, it includes the first half cylinder and second half cylinder of mutual engagement, first half cylinder is fixedly connected on fixed platform, second half cylinder is rotatably connected on fixed platform, second half cylinder has a closed station in the process of rotating relative to first half cylinder;Driving part, it is equipped for driving second half cylinder relative to first half cylinder rotation;The high viscosity mud deep sampling device, when two opening and closing air cylinders work simultaneously to make corresponding telescopic end stretch out, first push sliding table to slide in first sliding groove, until pin rod is separated from limit hole, at this time sliding table slides to the closed end of first sliding groove, at this time telescopic end of opening and closing air cylinder continues to stretch out, can drive second half cylinder relative to first half cylinder rotation and separate from closed station, to open second half cylinder and first half cylinder realize the sampling of mud.

Description

Technical Field

[0001] This utility model relates to the field of sampling technology, specifically to a deep sampling device for high-viscosity mud. Background Technology

[0002] Existing mud samplers generally employ a sampling bucket structure with a flip-top lid, controlled by a pull rope. However, this method has significant problems in practical applications: First, the pull rope control is unreliable in mud environments, and the lid is easily affected by debris in the water, leading to incomplete closure. Especially when extracting samples from the bottom of the mud layer, an incomplete seal can cause mud from other depths to mix into the sampling bucket during descent or ascent, severely compromising the representativeness of the sample and the accuracy of the test results. Second, the sampling bucket operates in a high-pressure mud environment for extended periods, making the lid prone to damage, further reducing the reliability of sampling operations and the durability of the equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a deep sampling device for high-viscosity mud to address the shortcomings of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-viscosity mud deep sampling device, including a fixed platform, and further including: a sampling cylinder, which includes a first half-cylinder and a second half-cylinder that are engaged, the first half-cylinder being fixedly connected to the fixed platform, the second half-cylinder being rotatably connected to the fixed platform, and the second half-cylinder having a closed position during the rotation of the second half-cylinder relative to the first half-cylinder; and a driving component, which is assembled to drive the second half-cylinder to rotate relative to the first half-cylinder so that the second half-cylinder disengages from the closed position.

[0005] Preferably, there are two driving components, which are symmetrically arranged at the top and bottom of the sampling cylinder.

[0006] Preferably, each of the drive components includes: a slide table slidably connected to the second half-cylinder; The slider is elastically slidably connected to the slide table; the opening and closing cylinder is rotatably connected to the first half-cylinder, and the telescopic end of the opening and closing cylinder is rotatably connected to the slider; the limiting hole is opened on the first half-cylinder; the locking pin is elastically slidably connected to the slide table, and when the second half-cylinder is in the closed position relative to the first half-cylinder, the pin of the locking pin is inserted into the limiting hole.

[0007] Preferably, a first groove is provided on the second half-cylinder, and the slide table is located in the first groove and slides along the length of the first groove.

[0008] Preferably, the slide table is provided with a second slide groove, the slider is located at one end of the second slide groove, and can slide along the length direction of the second slide groove.

[0009] Preferably, a contact block is vertically and elastically slidably connected in the second groove, and the slider can engage with the contact block when sliding along the second groove to rotate the second half-cylinder to the closed position.

[0010] Preferably, a first elastic element is provided between the abutment block and the slide table, and the process of the first elastic element restoring its elastic deformation is used to drive the abutment block to slide vertically relative to the second slide groove.

[0011] Preferably, the locking pin includes a receiving cavity formed on the slide table, the pin rod is slidably connected in the receiving cavity, and a second spring is provided between the receiving cavity and the pin rod. One end of the second spring is fixedly connected to the pin rod, and the other end is fixedly connected to the inner wall of the receiving cavity. The process of the second spring restoring its elastic deformation is used to drive the pin rod to slide in the receiving cavity so that it can be inserted and cooperate with the limiting hole.

[0012] Preferably, a sealing rubber gasket is fixedly connected to the contact surface of the first half-cylinder and the second half-cylinder when they are closed.

[0013] Preferably, a sealing cover for sealing the first groove is fixedly connected to the slide.

[0014] In the above technical solution, the high-viscosity mud deep sampling device provided by this utility model has the following beneficial effects: 1. When both opening and closing cylinders operate simultaneously to extend their corresponding telescopic ends, the slide table is first pushed to slide within the first groove until the pin disengages from the limiting hole. At this point, the slide table slides to the closed end of the first groove. The telescopic ends of the opening and closing cylinders then extend further, driving the second half-cylinder to rotate relative to the first half-cylinder and disengage from the closed position, thus opening the second half-cylinder and the first half-cylinder for mud sampling. This entire process ensures that the first and second half-cylinders are opened only when the sampling tube reaches the designated depth, resulting in more reliable sampling of deep mud, improved representativeness of mud samples, and increased accuracy of test results. Furthermore, the entire device is less prone to damage, enhancing its durability.

[0015] 2. When the telescopic end of the opening and closing cylinder retracts, it directly drives the second half-cylinder to rotate through the abutment block. Simultaneously, to avoid interference between the locking pin and the first half-cylinder, the locking pin is squeezed into the receiving cavity the instant it contacts the first half-cylinder, until it aligns with the limiting hole. At this point, under the restoring elastic deformation of the second spring, the locking pin is inserted into the limiting hole, bringing the first and second half-cylinders into a closed position. This entire process drives the closure between the first and second half-cylinders, completing the sampling operation. Furthermore, driven by the opening and closing cylinder, the sampling cylinder remains completely closed, allowing for better extraction of deep mud samples.

[0016] 3. When both opening and closing cylinders are damaged, and there is a sample inside the sampling cylinder, the locking pin is inserted into the corresponding limiting hole, preventing the second half-cylinder from rotating relative to the first half-cylinder. This effectively avoids spillage of the mud sample inside the sampling cylinder and improves safety. Based on this, after pressing the abutment block until it is completely submerged in the receiving groove, the sliding table is pulled to allow the slider to slide along the second slide groove. Then, the abutment block is released, and the first spring's recovery process pushes the corresponding abutment block out of the receiving groove. The sliding table continues to slide until the slider passes the abutment block and moves to the other closed end of the second slide groove. At this point, not only does the locking pin disengage from the corresponding limiting hole, but the second half-cylinder can also rotate relative to the first half-cylinder after the locking pin disengages from the corresponding limiting hole, thus enabling the opening operation. The entire process allows for manual opening of the second half-cylinder to complete the sampling operation even if the opening and closing cylinders are damaged. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 This is a diagram showing the open state of the first and second half-cylinders provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the first half-cylinder provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the second half-cylinder provided in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the slide provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Fixed platform; 2. First half-cylinder; 3. Second half-cylinder; 4. Slide table; 5. Slider; 6. Opening and closing cylinder; 7. Limiting hole; 8. Pin; 9. First slide groove; 10. Second slide groove; 11. Abutting block; 12. Second spring; 13. Receiving cavity; 14. Sealing cover; 15. First spring; 16. Receiving groove. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1-5This utility model provides a high-viscosity mud deep sampling device, including a fixed platform 1, a sampling cylinder, and a driving component. The sampling cylinder includes a first half-cylinder 2 and a second half-cylinder 3 that are engaged. The first half-cylinder 2 is fixedly connected to the fixed platform 1, and the second half-cylinder 3 is rotatably connected to the fixed platform 1. During the rotation of the second half-cylinder 3 relative to the first half-cylinder 2, it has a closed position. The driving component is assembled to drive the second half-cylinder 3 to rotate relative to the first half-cylinder 2, so that the second half-cylinder 3 disengages from the closed position. It should be noted that the fixed platform 1 is fixedly connected to an external lifting device so that the sampling cylinder can be raised and lowered within the pit. The external lifting device adopts existing technology, such as a crane or lifting platform.

[0022] The sampling cylinder has two driving components, symmetrically arranged at the top and bottom. Each driving component includes a slide 4, a slider 5, a start / stop cylinder 6, a limiting hole 7, and a locking pin. The slide 4 is elastically slidably connected to the second half-cylinder 3; the slider 5 is elastically slidably connected to the slide 4; the outer shell of the start / stop cylinder 6 is rotatably connected to the first half-cylinder 2, and the telescopic end of the start / stop cylinder 6 is rotatably connected to the slider 5; the limiting hole 7 is located on the first half-cylinder 2; and the locking pin is elastically slidably connected to the slide 4. When the second half-cylinder 3 is in a closed position relative to the first half-cylinder 2, the locking pin engages with the limiting hole 7. It should be noted that the locking pin includes a storage cavity 13 formed on the slide table 4, and the pin rod 8 is slidably connected in the storage cavity 13. A second spring 12 is provided between the storage cavity 13 and the pin rod 8. One end of the second spring 12 is fixedly connected to the pin rod 8, and the other end is fixedly connected to the inner wall of the storage cavity 13. The process of the second spring 12 restoring its elastic deformation is used to drive the pin rod 8 to slide in the storage cavity 13 so that it can be inserted and cooperate with the limiting hole 7.

[0023] The second half-cylinder 3 has a first groove 9, and the sliding table 4 slides along the length of the first groove 9 within it. Furthermore, a sealing cover 14 is fixedly connected to the sliding table 4 to seal the first groove 9. The sealing cover 14 covers the opening of the first groove 9 to seal it, preventing mud from flowing into the first groove 9 when the sampling cylinder is submerged, thus affecting the sliding fit between the sliding table 4 and the first groove 9.

[0024] The slide table 4 has a second slide groove 10, and the slider 5 is located at one end of the second slide groove 10 and can slide along the length of the second slide groove 10. A vertically elastic sliding abutment block 11 is connected within the second slide groove 10. When the slider 5 slides along the second slide groove 10, it abuts against the abutment block 11 to rotate the second half-cylinder 3 to the closed position. A first elastic element is provided between the abutment block 11 and the slide table 4. The process of the first elastic element restoring its elastic deformation is used to drive the abutment block 11 to slide vertically relative to the second slide groove 10. It should be noted that the first elastic element is a first spring 15. A receiving groove 16 for accommodating the abutment block 11 is provided on the slide table 4. One end of the first spring 15 is fixedly connected to the abutment block 11, and the other end is fixedly connected to the inner wall of the receiving groove 16. Therefore, during normal operation, the slider 5 is located at the closed end of the second slide groove 10, and the abutment block 11 at this time acts as a limit, restricting the slider 5 from sliding within the second slide groove 10. It should be noted that the distance that the slider 5 slides in the second slide groove 10 is longer than the distance that the slide table 4 slides in the first slide groove 9.

[0025] The first half-cylinder 2 and the second half-cylinder 3 are fixedly connected to a sealing rubber gasket when they are closed. Based on this, the sealing performance of the first half-cylinder 2 and the second half-cylinder 3 can be increased when they are closed.

[0026] In a preferred embodiment of the present invention, the sampling cylinder is further provided with two corrugated tubes (not shown in the figure). Each corrugated tube is used to cover the corresponding opening and closing cylinder 6. One end of each corrugated tube is fixedly connected to the first half-cylinder 2, and the other end is fixedly connected to the slider 5. This can prevent the opening and closing cylinder 6 from contacting the mud after the sampling cylinder is submerged in the mud, thereby improving the service life of the opening and closing cylinder 6.

[0027] Specifically, when the two opening and closing cylinders 6 operate simultaneously to extend their corresponding telescopic ends, the slide table 4 is first pushed to slide within the first slide groove 9 until the pin 8 disengages from the limiting hole 7. At this point, the slide table 4 slides to the closed end of the first slide groove 9. The telescopic ends of the opening and closing cylinders 6 then continue to extend, driving the second half-cylinder 3 to rotate relative to the first half-cylinder 2 and disengage from the closed position, thus opening the second half-cylinder 3 and the first half-cylinder 2 to achieve mud sampling. This entire process ensures that the first half-cylinder 2 and the second half-cylinder 3 only open when the sampling tube reaches the designated depth, thereby more reliably sampling mud from deep depths, improving the representativeness of the mud samples and the accuracy of the test results. Simultaneously, the entire device is less prone to damage, improving its durability.

[0028] When the telescopic end of the opening and closing cylinder 6 retracts, it directly drives the second half-cylinder 3 to rotate via the abutment block 11. Simultaneously, to prevent interference between the locking pin 8 and the first half-cylinder 2, the locking pin 8 is squeezed into the receiving cavity 13 upon contact with the first half-cylinder 2, until it aligns with the limiting hole 7. At this point, under the restoring elastic deformation of the second spring 12, the locking pin 8 is inserted into the limiting hole 7, thus placing the first half-cylinder 2 and the second half-cylinder 3 in a closed position. This entire process drives the closure between the first half-cylinder 2 and the second half-cylinder 3, completing the sampling operation. Furthermore, under the drive of the opening and closing cylinder 6, the sampling cylinder remains completely closed, allowing for better extraction of deep mud samples.

[0029] Furthermore, when both opening and closing cylinders 6 are damaged and there is a sample in the sampling cylinder, the second half-cylinder 3 will not rotate relative to the first half-cylinder 2 because the locking pin 8 is inserted into the corresponding limiting hole 7, thereby effectively preventing the mud sample in the sampling cylinder from being spilled and improving safety. Based on this, after pressing the abutment block 11 until it is completely submerged in the receiving groove 16, the slide table 4 is pulled out to make the slider 5 slide along the second slide groove 10. Then, the pressing block is released, and the process of the first spring 15 restoring its deformation drives the corresponding abutment block 11 out of the receiving groove 16. Then, the slide table 4 continues until the slider 5 moves to the other closed end of the second slide groove 10 after passing the abutment block 11. At this time, not only does the locking pin 8 disengage from the corresponding limiting hole 7, but also after the locking pin 8 disengages from the corresponding limiting hole 7, the second half-cylinder 3 can rotate relative to the first half-cylinder 2 to realize the opening operation. The whole process can be completed by manually opening the second half-cylinder 3 after the opening and closing cylinder 6 is damaged.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A deep sampling device for high-viscosity mud, comprising a fixed platform, characterized in that, Also includes: The sampling tube includes a first half-tube and a second half-tube that are joined together. The first half-tube is fixedly connected to a fixed platform, and the second half-tube is rotatably connected to the fixed platform. The second half-tube has a closed position during its rotation relative to the first half-tube. A drive unit, which is assembled to drive the second half-cylinder to rotate relative to the first half-cylinder so as to disengage the second half-cylinder from the closed position.

2. The high-viscosity mud deep sampling device according to claim 1, characterized in that, The sampling cylinder has two driving components, which are symmetrically arranged at the top and bottom of the sampling cylinder.

3. The high-viscosity mud deep sampling device according to claim 2, characterized in that, Each of the aforementioned driving components includes: The sliding table is slidably connected to the second half-cylinder. The slider is elastically and slidably connected to the slide table; The opening and closing cylinder has its outer shell rotatably connected to the first half-cylinder, and its telescopic end is rotatably connected to the slider. A limiting hole is provided on the first half-cylinder; The locking pin is elastically slidably connected to the slide table. When the second half-cylinder is in the closed position relative to the first half-cylinder, the pin of the locking pin is inserted into the limiting hole.

4. The high-viscosity mud deep sampling device according to claim 3, characterized in that, The second half-cylinder has a first sliding groove, and the sliding table is located in the first sliding groove and slides along the length of the first sliding groove.

5. The high-viscosity mud deep sampling device according to claim 4, characterized in that, The slide table is provided with a second slide groove, and the slider is located at one end of the second slide groove and can slide along the length of the second slide groove.

6. The high-viscosity mud deep sampling device according to claim 5, characterized in that, The second slide groove is vertically elastically slidably connected with an abutment block. When the slider slides along the second slide groove, it can abut against the abutment block to make the second half-cylinder rotate to the closed position.

7. The high-viscosity mud deep sampling device according to claim 6, characterized in that, A first elastic element is provided between the abutting block and the slide table. The process of the first elastic element restoring its elastic deformation is used to drive the abutting block to slide vertically relative to the second slide groove.

8. The high-viscosity mud deep sampling device according to claim 3, characterized in that, The locking pin includes a receiving cavity formed on the slide table, and the pin rod is slidably connected in the receiving cavity. A second spring is provided between the receiving cavity and the pin rod. One end of the second spring is fixedly connected to the pin rod, and the other end is fixedly connected to the inner wall of the receiving cavity. The process of the second spring restoring its elastic deformation is used to drive the pin rod to slide in the receiving cavity so that it can be inserted and cooperate with the limiting hole.

9. A high-viscosity mud deep sampling device according to claim 1, characterized in that, A sealing rubber gasket is fixedly connected to the contact surface when the first half-cylinder and the second half-cylinder are closed.

10. A high-viscosity mud deep sampling device according to claim 3, characterized in that, A sealing cover for sealing the first groove is fixedly connected to the slide.

Images