Batch sampling device for specific pollutants of drilling fluid

Abstract

The utility model provides a batch sampling device for specific pollutants in drilling fluid, which comprises a sampling barrel, and a sampling port is fixedly connected outside the sampling barrel. The utility model relates to a batch sampling device for specific pollutants in drilling fluid, which is characterized in that the device is firstly placed in a drilling well for sampling, firstly, a pressurizing bag is pressed to enable external air to enter a sampling barrel from a connecting pipe through a telescopic pipe, and at the moment, the air pressure in the sampling barrel is increased; when sampling is needed, a sliding rod pulls the piston to slide upwards along the interior of the sampling barrel through the elastic force of a reset spring by rotating a pressure release valve, at the moment, an external sample enters the sampling barrel through a sampling opening, a rotary knob is rotated to drive a threaded rod to rotate, and the threaded rod is rotated to drive the piston to move downwards along the interior of the sampling barrel; the sliding block is limited by the fixed frame, so that the sliding block slides and ascends and descends in the fixed frame, and ascending and descending of the sampling barrel are synchronously controlled, so that sampling operation at different depths is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling fluid sampling, and particularly relates to a device for batch sampling of characteristic pollutants in drilling fluid. Background Art

[0002] Existing rice combine harvesters include full-feed and semi-feed combine harvesters, which mostly adopt complex working structures such as reel, divider, cutting table, traveling mechanism, straw feeding device, threshing mechanism, grain screening mechanism, grain elevating mechanism, etc. For severely lodged crops, the traditional single divider cannot effectively separate them, seriously affecting the harvesting effect and efficiency of semi-feed harvesters.

[0003] The existing authorized publication number is CN116067703B, which discloses a drilling fluid sampling device, including a transmission component. The transmission component is connected with a reaping component. The reaping component includes a dividing board, a guide straw rod, an upper shell, a lower shell, a chain, a reel tooth, a guide plate and a connecting plate. The guide straw rod is fixed on the dividing board. The upper shell and the lower shell are fixed together and fixedly connected with the dividing board. The chain is connected with the transmission component. The reel tooth is connected to the chain. The guide plate is fixed in the middle of the lower shell. One end of the connecting plate is connected to the upper shell, and the other end is connected to the lower shell. The utility model can pre-align and straighten the severely lodged crops to be harvested before they enter the semi-feed cutter bar, so that the crops are in an upright and regular state before entering the cutter bar, effectively reducing the load on the cutter bar, improving the harvesting efficiency and reducing grain loss. However, the above-mentioned drilling fluid sampling device has a relatively simple structure and does not have an adjustment structure, making it unable to sample at different depths, resulting in low practicability. At the same time, manual extraction is required during the sampling process, which is very likely to contaminate the hands of the sampling personnel. Therefore, it is necessary to provide a device for batch sampling of characteristic pollutants in drilling fluid to solve the above problems. Summary of the Utility Model

[0004] The technical content of the utility model is to provide a device for batch sampling of characteristic pollutants in drilling fluid.

[0005] To solve the above problems, the present utility model provides a device for batch sampling of characteristic pollutants in drilling fluid, including: a sampling cylinder, an external fixed connection of the sampling cylinder is provided with a sampling port; a control component, the control component includes a piston, the piston is slidably connected to the inside of the sampling cylinder; an adjustment component, the adjustment component includes a sliding block, the sliding block is fixedly connected to the outside of the sampling cylinder. First, place the device in the drilling for sampling. First, press the pressure bladder so that external air enters the inside of the sampling cylinder through the telescopic tube from the connecting tube. At this time, the air pressure inside the sampling cylinder increases, causing the piston to displace downward along the inside of the sampling cylinder until the bottom. When sampling is required, turn the pressure relief valve. Through the elastic force of the return spring, the sliding rod pulls the piston to slide upward along the inside of the sampling cylinder. At this time, the external sample enters the inside of the sampling cylinder through the sampling port. When sampling at different depths is required, turn the knob to drive the threaded rod to rotate. Through the limitation of the sliding block by the fixed frame, the sliding block slides up and down inside the fixed frame, synchronously controlling the lifting of the sampling cylinder to achieve sampling operations at different depths.

[0006] As a further solution of the present utility model, the control component includes two sleeves, both of the two sleeves are fixedly connected to the top inside of the sampling cylinder, a sliding rod is slidably connected to the inside of both of the two sleeves, the sliding rod is fixedly connected to the top of the piston, the top of the sliding rod and the top inside of the sleeve are jointly fixedly connected with a return spring. The elastic force of the return spring can cause the sliding rod to always pull the piston upward along the inside of the sampling cylinder. When the piston slides upward synchronously, the sample can be drawn into the inside of the sampling cylinder from the sampling port.

[0007] As a further solution of the present utility model, the top of the sampling cylinder is fixedly connected with a connecting tube, the top of the connecting tube is fixedly connected with a telescopic tube, the top of the telescopic tube is fixedly connected with a pressure bladder. The pressure bladder can, by repeated pressing, allow external air to enter the inside of the sampling cylinder through the telescopic tube from the connecting tube, synchronously increasing the air pressure inside the sampling cylinder and causing the piston to slide downward along the inside of the sampling cylinder.

[0008] As a further solution of the present utility model, the outside of the pressure bladder is fixedly connected with a pressure relief valve. The pressure relief valve can, by closing, allow the air inside the sampling cylinder to leak out. At this time, through the elastic force of the return spring, the piston slides upward to complete sampling.

[0009] As a further solution of the present utility model, a filter shell is sleeved outside the sampling port. The filter shell is a spherical hollow structure. The filter shell can prevent large impurity particles from blocking the sampling port.

[0010] As a further solution of the present utility model, the adjusting assembly further includes a fixing frame sleeved outside the sliding block. A scale bar is provided on the outside of the fixing frame. The sampling cylinder can lift and lower synchronously with the sliding block inside the fixing frame. By referring to the scale bar, sampling operations at different depths can be achieved with the sampling cylinder.

[0011] As a further solution of the present utility model, a threaded rod is rotatably connected inside the fixing frame. The threaded rod is rotatably connected inside the sliding block. A knob is fixedly connected to the top of the threaded rod, and the knob extends outside the fixing frame. By rotating the knob, the rotation of the threaded rod can be controlled, and further the lifting adjustment of the sliding block can be realized.

[0012] As a further solution of the present utility model, a floating plate and a limiting ring are fixedly connected to the outside of the top end of the fixing frame. The limiting ring is sleeved outside the telescopic tube. A sliding groove is provided on the outside of the fixing frame. The sliding block slides inside the fixing frame and extends outside the fixing frame through the sliding groove.

[0013] In summary, the present utility model includes at least the following beneficial technical effects:

[0014] First, the present utility model records that the device is first placed in the drilling well for sampling. First, by pressing the pressure bladder, the external air passes through the telescopic tube and enters the inside of the sampling cylinder through the connecting tube. At this time, the air pressure inside the sampling cylinder increases, causing the piston to displace downward along the inside of the sampling cylinder until the bottom. When sampling is required, by rotating the pressure relief valve, the elastic force of the return spring causes the sliding rod to pull the piston and slide upward along the inside of the sampling cylinder. At this time, the external sample enters the inside of the sampling cylinder through the sampling port.

[0015] Second, the present utility model records a device for batch sampling of characteristic pollutants in drilling fluid. It records that when sampling at different depths is required, the knob is rotated to drive the threaded rod to rotate. Through the limitation of the sliding block by the fixing frame, the sliding block slides up and down inside the fixing frame, synchronously controlling the lifting of the sampling cylinder to achieve sampling operations at different depths. Description of the Drawings

[0016] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is an external three-dimensional structure schematic diagram of the device for batch sampling of characteristic pollutants in drilling fluid of the present utility model;

[0018] Figure 2 It is an internal three-dimensional structure schematic diagram of the device for batch sampling of characteristic pollutants in drilling fluid of the present utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the sampling cylinder of the device for batch sampling of characteristic pollutants in drilling fluid according to the present utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the sleeve of the device for batch sampling of characteristic pollutants in drilling fluid according to the present utility model.

[0021] Reference numerals: 1, fixed frame; 2, chute; 3, sampling cylinder; 4, scale bar; 5, floating plate; 6, threaded rod; 7, sliding block; 8, knob; 9, connecting pipe; 10, telescopic pipe; 11, pressure bladder; 12, piston; 13, sampling port; 14, filter housing; 15, sleeve; 16, return spring; 17, sliding rod; 18, limit ring; 19, pressure relief valve. Detailed implementation manners

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 . The device for batch sampling of characteristic pollutants in drilling fluid includes: a sampling cylinder 3, and a sampling port 13 is fixedly connected to the outside of the sampling cylinder 3; a control assembly, the control assembly includes a piston 12, and the piston 12 is slidably connected to the inside of the sampling cylinder 3; an adjustment assembly, the adjustment assembly includes a sliding block 7, and the sliding block 7 is fixedly connected to the outside of the sampling cylinder 3. First, place the device in the drilling for sampling. First, press the pressure bladder 11 so that the external air enters the inside of the sampling cylinder 3 through the telescopic pipe 10 from the connecting pipe 9. At this time, the air pressure inside the sampling cylinder 3 increases, causing the piston 12 to displace downward along the inside of the sampling cylinder 3 until the bottom. When sampling is required, turn the pressure relief valve 19, and the elastic force of the return spring 16 causes the sliding rod 17 to pull the piston 12 to slide upward along the inside of the sampling cylinder 3. At this time, the external sample enters the inside of the sampling cylinder 3 through the sampling port 13. When sampling at different depths is required, turn the knob 8 to drive the threaded rod 6 to rotate. Due to the limitation of the fixed frame 1 on the sliding block 7, the sliding block 7 slides up and down inside the fixed frame 1, synchronously controlling the lifting of the sampling cylinder 3 to achieve sampling operations at different depths.

[0023] The control assembly includes two sleeves 15. Both of the two sleeves 15 are fixedly connected to the top inside of the sampling cylinder 3. A sliding rod 17 is slidably connected to the inside of both of the two sleeves 15. The sliding rod 17 is fixedly connected to the top of the piston 12. The top of the sliding rod 17 and the inside of the top of the sleeve 15 are jointly fixedly connected with a return spring 16. The elastic force of the return spring 16 can cause the sliding rod 17 to always pull the piston 12 upward along the inside of the sampling cylinder 3. When the piston 12 slides upward synchronously, the sample can be drawn into the sampling cylinder 3 from the sampling port 13;

[0024] A connecting pipe 9 is fixedly connected to the top of the sampling cylinder 3. A telescopic pipe 10 is fixedly connected to the top of the connecting pipe 9. A pressure bladder 11 is fixedly connected to the top of the telescopic pipe 10. By repeatedly pressing the pressure bladder 11, external air can enter the interior of the sampling cylinder 3 through the telescopic pipe 10 from the connecting pipe 9, synchronously increasing the air pressure inside the sampling cylinder 3, and the piston 12 slides downward along the interior of the sampling cylinder 3;

[0025] A pressure relief valve 19 is fixedly connected to the outside of the pressure bladder 11. By closing the pressure relief valve 19, the air inside the sampling cylinder 3 can leak out. At this time, the piston 12 slides upward under the elastic force of the return spring 16 to complete sampling;

[0026] A filter housing 14 is sleeved outside the sampling port 13. The filter housing 14 is a spherical hollow structure, which can prevent large impurity particles from blocking the sampling port 13;

[0027] A floating plate 5 and a limit ring 18 are fixedly connected to the outside of the top end of the fixed frame 1. The limit ring 18 is sleeved outside the telescopic pipe 10. A sliding groove 2 is opened on the outside of the fixed frame 1. A sliding block 7 slides inside the fixed frame 1 and extends outside the fixed frame 1 through the sliding groove 2;

[0028] It should be noted that in the present utility model, by pressing the pressure bladder 11, external air enters the interior of the sampling cylinder 3 through the telescopic pipe 10 from the connecting pipe 9. At this time, the air pressure inside the sampling cylinder 3 increases, causing the piston 12 to displace downward along the interior of the sampling cylinder 3 until the bottom. When sampling is required, by rotating the pressure relief valve 19, the elastic force of the return spring 16 causes the sliding rod 17 to pull the piston 12 to slide upward along the interior of the sampling cylinder 3. At this time, the external sample enters the interior of the sampling cylinder 3 through the sampling port 13.

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 For the device for batch sampling of characteristic pollutants in drilling fluid, the adjusting assembly further includes a fixed frame 1. The fixed frame 1 is sleeved outside the sliding block 7. A scale bar 4 is opened on the outside of the fixed frame 1. The sampling cylinder 3 can lift and lower inside the fixed frame 1 synchronously with the sliding block 7. By referring to the scale bar 4, sampling operations at different depths can be achieved for the sampling cylinder 3;

[0030] A threaded rod 6 is rotatably connected inside the fixed frame 1. The threaded rod 6 is rotatably connected inside the sliding block 7. A knob 8 is fixedly connected to the top of the threaded rod 6. The knob 8 extends outside the fixed frame 1. By rotating the knob 8, the rotation of the threaded rod 6 can be controlled, and further the lifting adjustment of the sliding block 7 can be achieved;

[0031] It should be noted that in the present utility model, turning the knob 8 drives the threaded rod 6 to rotate. Through the limitation of the fixing frame 1 on the sliding block 7, the sliding block 7 slides up and down inside the fixing frame 1, synchronously controlling the lifting of the sampling cylinder 3.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, or directly or indirectly applied. In other related technical fields, the scope of the present utility model is defined by the appended claims and their equivalents, and is similarly included within the scope of the patent protection of the present utility model.

Claims

1. A batch sampling device for characteristic pollutants in drilling fluid, characterized in that: include: A sampling cylinder (3), the outside of which is fixedly connected with a sampling port (13); A control assembly, the control assembly comprising a piston (12), the piston (12) being slidably connected to the interior of the sampling cylinder (3); An adjustment component, the adjustment component comprising a sliding block (7), the sliding block (7) being fixedly connected to the outside of the sampling cylinder (3).

2. The device for batch sampling of characteristic pollutants in drilling fluid according to claim 1, characterized in that: The control assembly comprises two sleeves (15), both of which are fixedly connected to the top end of the sampling tube (3), both of which are slidably connected to a slide rod (17) inside, and the slide rod (17) is fixedly connected to the top of the piston (12), and a return spring (16) is fixedly connected to the top of the slide rod (17) and the top end of the sleeve (15).

3. The device for batch sampling of characteristic pollutants in drilling fluid according to claim 1, characterized in that: The top of the sampling tube (3) is fixedly connected to a connecting tube (9), the top of the connecting tube (9) is fixedly connected to a telescopic tube (10), and the top of the telescopic tube (10) is fixedly connected to a pressurizing bag (11).

4. The device for batch sampling of characteristic pollutants in drilling fluid according to claim 3 is characterized in that: The outside of the pressurizing bag (11) is fixedly connected with a pressure relief valve (19).

5. The device for batch sampling of characteristic pollutants in drilling fluid according to claim 1, characterized in that: The sampling port (13) is externally sleeved with a filter shell (14), and the filter shell (14) is a spherical hollow structure.

6. The device for batch sampling of characteristic pollutants in drilling fluid according to claim 1, characterized in that: The adjustment component further comprises a fixed frame (1), wherein the fixed frame (1) is sleeved on the outside of the sliding block (7), and a scale bar (4) is provided on the outside of the fixed frame (1).

7. The device for batch sampling of characteristic pollutants in drilling fluid according to claim 6, characterized in that: The interior of the fixed frame (1) is rotatably connected to a threaded rod (6), the threaded rod (6) is rotatably connected to the interior of a sliding block (7), the top of the threaded rod (6) is fixedly connected to a knob (8), and the knob (8) extends to the outside of the fixed frame (1).

8. The device for batch sampling of characteristic pollutants in drilling fluid according to claim 6, characterized in that: A floating plate (5) and a limiting ring (18) are fixedly connected to the outside of the top end of the fixing frame (1), the limiting ring (18) is sleeved on the outside of the telescopic tube (10), and a sliding groove (2) is provided on the outside of the fixing frame (1).

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