CN218844298U

CN218844298U - Oil development sampling device

Info

Publication number: CN218844298U
Application number: CN202223292533.0U
Authority: CN
Inventors: 李治; 黄明杰; 田野; 陈边江; 刘志鹏; 鲍会召; 林宇发
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-11
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses an oil development sampling device, including the intercommunication and fixing the sampling tube in main oil pipe bottom, the bottom fixedly connected with apron of sampling tube, the rectangle box that the bottom fixedly connected with top of apron set up for the opening, the right side intercommunication of rectangle box is fixed with L shape discharge pipe. The utility model discloses a press the clamp plate, elasticity dislocation jacking subassembly, the toper sprue, the flexible direction subassembly of elasticity, the direction is even driven the setting of subassembly and shutoff board, can integrative realize the shutoff of L shape discharge pipe and remove the shutoff of toper inlet port when simply pressing the clamp plate, the effect that can energy-conserving automatic prevention oil in a large number rushes out when realizing the deblocking sample, and can utilize the automatic shutoff of elasticity to prevent oil feed and deblocking oil extraction by oneself when relaxing the pressing force, the personnel only need simply press to relax and can accomplish safe sample, and is easy and simple to handle, and need not to set up equipment such as electric power or pressure measurement buffering in addition, reduce long-term consumption cost, improve energy-conservation nature and operation convenience.

Description

Oil development sampling device

Technical Field

The utility model relates to an oil development sampling technical field especially relates to an oil development sampling device.

Background

In the process of oil field exploitation, oil product sampling is needed in the early stage to obtain the quality of oil in an oil well, a sampling pipe is arranged on a main oil pipe to be matched with a valve for sampling in the traditional method, and the phenomenon of massive oil sputtering caused by large pressure is easy to occur when the valve is opened;

to this end, through the retrieval, application number 201921210916.4 discloses an oil exploitation sampling device, including dividing the oil pipe way, divide the lateral wall of oil pipe way to be equipped with control valve, divide the bottom of oil pipe way to be equipped with into oil pipe, advance oil pipe with divide one side of oil pipe way to be equipped with the flange subassembly of fixing both, advance oil pipe with inner chamber one side that the flange subassembly is adjacent is equipped with through pressure regulating cone groove, pressure regulating cone groove be equipped with rather than assorted cone piston, the one end that pressure regulating cone groove kept away from the flange subassembly is equipped with the fender edge, one side of fender edge is equipped with rather than assorted pulling disk, pulling disk with be equipped with pressure buffer between one side of cone piston, the outer wall both sides of pressure regulating cone groove are equipped with automatic pressure relief device and oil pressure gauge respectively, advance oil pipe with the inner wall that the pulling disk is adjacent is equipped with a plurality of spouts, every spout all is equipped with rather than assorted slide bar, every slide bar all with pulling disk, a plurality of slide bar all with the fixed connection of pulling disk, a plurality of slide bar is equipped with the movable lead screw drive rod and its slide bar, the slide bar is equipped with its movable lead screw drive motor base, the slide bar is equipped with its one side of sample bar and its movable lead screw drive, the sample bar is equipped with its slide bar that the sample bar is close to the sample bar is equipped with its movable lead screw drive, the sample bar that the sample bar is equipped with its slide bar is equipped with the sample bar that the sample bar is equipped with the movable lead screw is close to the movable lead screw is equipped with the movable lead screw drive; when making sampling tube or sample valve take a sample to fluid, inside fluid pressure is more even to can realize automatic pressure release, overall structure is simple and practical, is fit for promoting.

According to the oil suction device, through the arrangement and the matching of the pressure regulating conical groove and the conical piston, under the action of the pull disc and the pressure buffer device, the pressure in the oil taking pipe is gradually and slowly increased, the pressure oil enters more slowly, and no huge impact is caused to a pipe body or a valve body;

although the structure is utilized to be matched with the motor to buffer and discharge oil pressure, the oil pressure is required to be discharged by separately arranging electric driving pieces such as the motor and the like after the control valve is opened, and the oil pressure is relieved by utilizing the buffer device; the oil extraction sampling device is complex in operation, increases long-term electric energy consumption, increases long-term use cost, is not energy-saving, cannot automatically prevent oil from being flushed out when convenient unsealing is carried out, and automatically discharges oil when plugging is carried out.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an oil exploitation sampling device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an oil exploitation sampling device comprises a sampling tube which is communicated and fixed at the bottom of a main oil pipe, the bottom end of the sampling tube is fixedly connected with a cover plate, the bottom of the cover plate is fixedly connected with a rectangular box with an opening at the top, and the right side of the rectangular box is communicated and fixed with an L-shaped discharge pipe;

the top of the cover plate is provided with a conical oil inlet hole communicated with the bottom end of the sampling tube, a conical plugging block is movably sleeved in the conical oil inlet hole in a sealing mode, the bottom of the cover plate is fixedly connected with two elastic telescopic guide assemblies, the top ends of the two elastic telescopic guide assemblies are respectively and fixedly connected with the two sides of the conical plugging block, and the elastic telescopic guide assemblies are used for tightening the conical plugging block downwards so as to plug the bottom end of the sampling tube;

the bottom of the rectangular box is provided with a rectangular groove, a pressing plate is arranged in the rectangular groove, the top of the pressing plate is fixedly connected with an elastic dislocation jacking assembly, the top end of the elastic dislocation jacking assembly extends into the rectangular box in a sliding mode, the elastic dislocation jacking assembly is located below the conical plugging block and matched with the conical plugging block, and the elastic dislocation jacking assembly is used for extruding the conical plugging block to open deblocking after the pressing plate moves upwards for a certain distance;

the utility model discloses a device for testing oil pressure in a petroleum pipeline, including rectangle box, slide sleeve, L shape discharge pipe, rectangle groove, the direction of rectangle groove, slide sleeve, the direction of rectangle groove, set up the rectangular hole on the left side inner wall of rectangle groove, install between the top inner wall in rectangular hole and the bottom inner wall and drive the subassembly with shutoff board left side bottom fixed connection's direction even, the direction is driven the bottom left side of subassembly even and is pressed the top right side fixed connection of clamp plate, the direction is driven the subassembly even and is used for driving the left side shutoff of shutoff board to L shape discharge pipe when the clamp plate shifts up to this prevents that oil pressure is too big when taking a sample through the direct a large amount of blowout of L shape discharge pipe.

Preferably, the elastic telescopic guide assembly comprises an outer pipe, an inner rod and an extension spring, wherein the bottom end of the outer pipe is of a blocking structure, the extension spring is in a stretching state, the top end of the outer pipe is fixedly connected with the bottom of a cover plate, the inner rod is sleeved in the corresponding outer pipe in a sliding mode, the top ends of the two inner rods are respectively fixedly connected with the two sides of a conical block, the cover plate is sleeved on the two inner rods in a sliding mode, the top end and the bottom end of the extension spring are respectively fixedly connected with the bottom end of the corresponding inner rod and the inner wall of the bottom end of the outer pipe, the inner rod and the extension spring in the stretching state are matched, the outer pipe and the inner rod are used for guiding the conical block vertically, and the extension spring and the inner rod are used for downwards blocking the conical block in a stretching mode.

Preferably, elasticity dislocation jacking subassembly includes square ejector pin and first spring, the bottom of square ejector pin and the top fixed connection who presses the clamp plate, in the top of square ejector pin extended to the rectangle box, the sealed sliding sleeve of rectangle box was established on the square ejector pin, the square ejector pin was located the below of toper sprue and cooperatees with the toper sprue, the top and the bottom of first spring respectively with the top inner wall of rectangular channel and the top fixed connection who presses the clamp plate, first spring movable sleeve establishes on the square ejector pin, the square ejector pin and the cooperation of first spring of setting, shift to when contacting with the bottom of toper sprue on moving up the drive square ejector pin according to the clamp plate, utilize this moment to continue ascending power to realize the jacking deblocking of toper sprue.

Preferably, the direction is even driven the subassembly and is included guide post and connecting block, the top and the bottom of guide post respectively with the top inner wall and the bottom inner wall fixed connection of rectangular hole, the connecting block sliding sleeve is established on the guide post, the right side of connecting block and the left side bottom fixed connection of shutoff board, the bottom left side of connecting block and the top right side fixed connection who presses the pressure board, the guide post and the connecting block cooperation of setting can utilize the connecting block synchronous drive shutoff board to rise when moving up according to the pressure board, prevent oil splash to the shutoff of L shape discharge pipe.

Preferably, the right side of the plugging plate is fixedly bonded with a sealing rubber sheet, the right side of the sealing rubber sheet is flush with the inner wall of the right side of the rectangular box and the left end of the L-shaped discharge pipe, and the plugging plate is located below the left end of the L-shaped discharge pipe.

Preferably, the outer side of the conical plugging block is bonded and sleeved with a first sealing rubber sleeve, and the outer side of the first sealing rubber sleeve is in close contact with the inner wall of the conical oil inlet.

Preferably, a square through hole is formed in the inner wall of the top of the rectangular groove, a second sealing rubber sleeve is bonded and sleeved on the outer side of the square ejector rod, and the outer side of the second sealing rubber sleeve is sleeved with the inner wall of the square through hole in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

through the matching of the arranged pressing plate, the elastic dislocation jacking assembly, the conical plugging block, the elastic telescopic guide assembly, the guide continuous driving assembly and the plugging plate, the plugging plate can be directly and firstly driven to plug the left end of the L-shaped oil discharge pipe upwards when the pressing plate is simply pressed, so that the phenomenon that oil enters the L-shaped oil discharge pipe to be sprayed is firstly avoided, and the conical plugging block can be jacked up and unsealed by utilizing a dislocation extrusion mode when the oil continuously moves upwards, so that the oil is unsealed and discharged into the rectangular box while the outward spraying is prevented, and the effects of plugging, oil spraying and oil unsealing by utilizing the simple pressing, matching and dislocation extrusion are achieved;

in addition, when the pressing force is released, the conical plugging block can be directly and sequentially driven to move downwards to plug and the plugging plate can be driven to move downwards to remove the plugging of the L-shaped discharge pipe by utilizing the elastic force of the first spring and the extension spring, the effects of automatic plugging and oil feeding prevention and de-plugging and automatic oil discharging are realized when the pressing force is released, a person only needs to simply press the releasing action, the operation is simple and convenient, and devices such as electric power or pressure measuring buffer and the like do not need to be additionally arranged.

The utility model discloses a press the clamp plate, elasticity dislocation jacking subassembly, the toper sprue, the flexible direction subassembly of elasticity, the direction is even driven the setting of subassembly and shutoff board, can integrative realize the shutoff of L shape discharge pipe and remove the shutoff of toper inlet port when simply pressing the clamp plate, the effect that can energy-conserving automatic prevention oil in a large number rushes out when realizing the deblocking sample, and can utilize the automatic shutoff of elasticity to prevent oil feed and deblocking oil extraction by oneself when relaxing the pressing force, the personnel only need simply press to relax and can accomplish safe sample, and is easy and simple to handle, and need not to set up equipment such as electric power or pressure measurement buffering in addition, reduce long-term consumption cost, improve energy-conservation nature and operation convenience.

Drawings

Fig. 1 is a schematic perspective view of an oil extraction sampling device according to the present invention;

FIG. 2 is a schematic view of the internal cross-sectional structure of a sampling tube, a cover plate and a rectangular box connecting piece of the sampling device for oil extraction according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 100. a main oil pipe; 1. a sampling tube; 2. a cover plate; 3. a rectangular box; 4. a conical oil inlet hole; 5. a conical block; 6. an outer tube; 7. an inner rod; 8. an extension spring; 9. a rectangular groove; 10. a pressing plate; 11. a square ejector rod; 12. a first spring; 13. a rectangular groove; 14. a plugging plate; 15. a rectangular hole; 16. a guide post; 17. connecting blocks; 18. sealing rubber sheets; 19. an L-shaped discharge pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an oil exploitation sampling device comprises a sampling tube 1 which is communicated with and fixed at the bottom of a main oil pipe 100, a cover plate 2 is fixedly connected at the bottom end of the sampling tube 1, a rectangular box 3 with an opening at the top is fixedly connected at the bottom of the cover plate 2, and an L-shaped discharge pipe 19 is communicated with and fixed at the right side of the rectangular box 3;

the top of the cover plate 2 is provided with a conical oil inlet hole 4 communicated with the bottom end of the sampling tube 1, a conical plugging block 5 is movably sleeved in the conical oil inlet hole 4 in a sealing manner, wherein the outer side of the conical plugging block 5 is bonded and sleeved with a first sealing rubber sleeve, the outer side of the first sealing rubber sleeve is tightly contacted with the inner wall of the conical oil inlet hole 4 to play a sealing effect between the conical plugging block 5 and the conical oil inlet hole 4, the bottom of the cover plate 2 is fixedly connected with two elastic telescopic guide components, the top ends of the two elastic telescopic guide components are respectively fixedly connected with the two sides of the conical plugging block 5, the elastic telescopic guide components are used for tightening the conical plugging block 5 downwards so as to realize the plugging of the bottom end of the sampling tube 1, wherein the elastic telescopic guide components comprise an outer tube 6 with a plugging structure at the bottom end, an inner rod 7 and a stretching spring 8 in a stretching state, the top end of the outer pipe 6 is fixedly connected with the bottom of the cover plate 2, the inner rods 7 are slidably sleeved in the corresponding outer pipe 6, the top ends of the two inner rods 7 are respectively fixedly connected with two sides of the conical plugging block 5, the cover plate 2 is slidably sleeved on the two inner rods 7, vertical guide holes which are respectively slidably sleeved with the outer sides of the corresponding inner rods 7 are formed in the inner walls of two sides of the conical oil inlet hole 4, the cover plate 2 is slidably sleeved on the two inner rods 7 through the two vertical guide holes to achieve the vertical sliding guide effect of the inner rods 7, the top end and the bottom end of each extension spring 8 are respectively fixedly connected with the bottom end of the corresponding inner rod 7 and the inner wall of the bottom end of the outer pipe 6, the arranged outer pipe 6 and the inner rods 7 are matched with the extension spring 8 in a stretching state, the outer pipe 6 and the inner rods 7 are matched to vertically guide the conical plugging block 5, and the extension spring 8 and the inner rods 7 are matched to downwards tension and plug the conical plugging block 5;

the bottom of the rectangular box 3 is provided with a rectangular groove 9, a pressing plate 10 is arranged in the rectangular groove 9, the top of the pressing plate 10 is fixedly connected with an elastic dislocation jacking assembly, the top end of the elastic dislocation jacking assembly slidably extends into the rectangular box 3, the elastic dislocation jacking assembly is positioned below the conical block 5 and matched with the conical block 5, the elastic dislocation jacking assembly is used for extruding, opening and deblocking the conical block 5 after the pressing plate 10 moves upwards for a certain distance, wherein the elastic dislocation jacking assembly comprises a square ejector rod 11 and a first spring 12, the bottom end of the square ejector rod 11 is fixedly connected with the top of the pressing plate 10, the top end of the square ejector rod 11 extends into the rectangular box 3, the rectangular box 3 is sleeved on the square ejector rod 11 in a sealing and sliding manner, a square through hole is formed in the inner wall of the top of the rectangular groove 9, a second sealing rubber sleeve is bonded and sleeved on the outer side of the square top rod 11, the outer side of the second sealing rubber sleeve is slidably sleeved with the inner wall of the square through hole, the effect of enabling the square top rod 11 to pass through in a sealing and sliding mode is achieved, the square top rod 11 is located below the conical plugging block 5 and matched with the conical plugging block 5, the top end and the bottom end of the first spring 12 are fixedly connected with the inner wall of the top of the rectangular groove 9 and the top of the pressing plate 10 respectively, the first spring 12 is movably sleeved on the square top rod 11, the arranged square top rod 11 is matched with the first spring 12, when the pressing plate 10 moves upwards to drive the square top rod 11 to move upwards to be in contact with the bottom of the conical plugging block 5, and the conical plugging block 5 is lifted and unsealed by means of continuous upward force;

the bottom inner wall of the rectangular box 3 is provided with a rectangular groove 13, the rectangular groove 13 is internally and slidably sleeved with a plugging plate 14 matched with the left end of the L-shaped discharge pipe 19, the right side of the plugging plate 14 is fixedly bonded with a sealing rubber sheet 18, the right side of the sealing rubber sheet 18 is flush with the right side inner wall of the rectangular box 3 and the left end of the L-shaped discharge pipe 19, the plugging plate 14 is positioned below the left end of the L-shaped discharge pipe 19 and plays a role in conveniently driving the sealing rubber sheet 18 to upwards plug and shield the left end of the L-shaped discharge pipe 19 when the plugging plate 14 moves upwards, the left side inner wall of the rectangular groove 13 is provided with a rectangular hole 15, a guide connecting and driving component fixedly connected with the bottom of the left side of the plugging plate 14 is arranged between the top inner wall and the bottom inner wall of the rectangular hole 15, the bottom left side of the guide connecting and driving component is fixedly connected with the top right side of the pressing plate 10, the guide connecting and driving component is used for driving the plugging plate 14 to plug the left side of the L-shaped discharge pipe 19 when the pressing plate 10 moves upwards, therefore, the phenomenon that oil pressure is overlarge during sampling and is directly sprayed out in a large quantity through the L-shaped discharge pipe 19 is prevented, wherein the guide continuous driving assembly comprises a guide column 16 and a connecting block 17, the top end and the bottom end of the guide column 16 are fixedly connected with the inner wall of the top part and the inner wall of the bottom part of the rectangular hole 15 respectively, the connecting block 17 is sleeved on the guide column 16 in a sliding manner, the top part of the connecting block 17 is provided with a guide hole which is sleeved on the outer side of the guide column 16 in a sliding manner, the connecting block 17 is sleeved on the guide column 16 in a sliding manner through the guide hole to achieve the vertical sliding guide effect on the connecting block 17, the right side of the connecting block 17 is fixedly connected with the bottom part of the left side of the plugging plate 14, the left side of the bottom part of the connecting block 17 is fixedly connected with the right side of the top part of the pressing plate 10, the guide column 16 and the connecting block 17 are matched, and the plugging plate 14 can be synchronously driven to ascend by the connecting block 17 when the pressing plate 10 moves upwards, the effect of automatically plugging the L-shaped discharge pipe 19 to prevent oil splashing when the L-shaped discharge pipe is pressed to move upwards is realized; the utility model discloses a press plate 10, elasticity dislocation jacking subassembly, toper sprue 5, the flexible direction subassembly of elasticity, the direction is even driven subassembly and shutoff board 14's setting, can integrative realize the shutoff of 19 shutoff of L shape discharge pipe and relieving toper inlet port 4 when simply pressing down press plate 10, the effect that can energy-conserving automatic prevention oil in a large number rushes out when realizing the deblocking sample, and can utilize the automatic shutoff of elasticity to prevent oil feed and deblocking oil extraction by oneself when relaxing the pressing force, the personnel only need simply press to relax and can accomplish safe sample, and is easy and simple to handle, and need not to set up equipment such as electric power or pressure measurement buffering in addition, reduce long-term consumption cost, improve energy-conservation and operation convenience.

The working principle is as follows: when sampling, the pressing plate 10 is directly pressed upwards, the pressing plate 10 drives the direction ejector rod 11 and the connecting block 17 to move upwards and compress the first spring 12, the connecting block 17 slides upwards on the guide column 16 and drives the plugging plate 14 to move upwards, the plugging plate 14 drives the sealing rubber 18 to plug the left end of the L-shaped discharge pipe 19 upwards, when the direction ejector rod 11 moves upwards to contact with the bottom of the conical plugging block 5, the direction ejector rod 11 which moves upwards continuously extrudes and drives the conical plugging block 5 to remove plugging of the conical oil inlet hole 4 upwards, the conical plugging block 5 drives the two inner rods 7 to respectively slide upwards in the corresponding outer pipes 6 and stretches the stretching springs 8 to form an effect of dislocated extrusion and opening of the conical plugging block 5, at the moment, oil in the main oil pipe 100 enters the rectangular box 3 through the sampling pipe 1 and the conical oil inlet hole 4, at the moment, the left end of the L-shaped discharge pipe 19 is plugged by the plugging plate 14, the phenomenon that a large amount of oil rushes out from the L-shaped discharge pipe 19 due to the phenomenon that a large amount of splashing of oil in the rectangular box can be directly blocked by the L-shaped discharge pipe 3, and the phenomenon that the oil can be directly blocked by the L-shaped discharge pipe 19 in a simple pressing mode that the oil discharge pipe can be removed by a simple pressing mode that the oil discharge pipe to realize the plugging effect of plugging and the simple plugging and the plugging can be removed by the simple plugging and the simple pressing mode that the plugging effect of plugging and the L-shaped oil discharge pipe 4;

relaxing the pressure on the pressing plate 10, the elastic force of the first spring 12 in the compression state drives the pressing plate 10 to move back downwards, the pressing plate 10 drives the square ejector rod 11 to move back downwards, the extension spring 8 in the extension state drives the conical plugging block 5 to plug the conical oil inlet hole 4 downwards through the corresponding inner rod 7, so that oil is prevented from continuously entering, the plugging plate 14 is driven to remove plugging of the L-shaped discharge pipe 19 downwards through the connecting block 17 when the pressing plate 10 moves downwards, the conical oil inlet hole 4 is plugged and does not feed oil into the rectangular box 3 any more, so that pressure is not increased any more, the oil in the rectangular box 3 automatically flows out through the L-shaped discharge pipe 19 at the moment, no additional equipment oil discharge is needed, the effect of self-timing oil discharge during deblocking is realized, the plugging oil injection prevention and deblocking oil injection prevention are realized by simple press-fit dislocation extrusion, the mode of plugging oil injection prevention and deblocking oil discharge is realized when the fit is relaxed, personnel only need to simply press the release action, the operation is simple, the power consumption or the pressure measurement buffer and the convenience are improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An oil exploitation sampling device comprises a sampling tube (1) which is communicated and fixed at the bottom of a main oil pipe (100), and is characterized in that the bottom end of the sampling tube (1) is fixedly connected with a cover plate (2), the bottom of the cover plate (2) is fixedly connected with a rectangular box (3) of which the top is provided with an opening, and the right side of the rectangular box (3) is communicated and fixed with an L-shaped discharge pipe (19);

the top of the cover plate (2) is provided with a conical oil inlet hole (4) communicated with the bottom end of the sampling tube (1), a conical plugging block (5) is hermetically and movably sleeved in the conical oil inlet hole (4), the bottom of the cover plate (2) is fixedly connected with two elastic telescopic guide assemblies, and the top ends of the two elastic telescopic guide assemblies are respectively and fixedly connected with the two sides of the conical plugging block (5);

the bottom of the rectangular box (3) is provided with a rectangular groove (9), a pressing plate (10) is arranged in the rectangular groove (9), the top of the pressing plate (10) is fixedly connected with an elastic dislocation jacking assembly, the top end of the elastic dislocation jacking assembly slidably extends into the rectangular box (3), and the elastic dislocation jacking assembly is positioned below the conical plugging block (5) and matched with the conical plugging block (5);

rectangle recess (13) have been seted up on the bottom inner wall of rectangle box (3), sliding sleeve is equipped with in rectangle recess (13) and blocks up board (14) with L shape discharge pipe (19) left end looks complex, rectangular hole (15) have been seted up on the left side inner wall of rectangle recess (13), install between the top inner wall of rectangular hole (15) and the bottom inner wall with blocks up board (14) left side bottom fixed connection's direction even drive the subassembly, the direction is even driven the bottom left side of subassembly and is pressed the top right side fixed connection of pressing panel (10).

2. The oil exploitation sampling device according to claim 1, wherein the elastic telescopic guide assembly comprises an outer tube (6) with a bottom end in a blocking structure, an inner rod (7) and a tension spring (8) in a tension state, the top end of the outer tube (6) is fixedly connected with the bottom of the cover plate (2), the inner rod (7) is slidably sleeved in the corresponding outer tube (6), the top ends of the two inner rods (7) are fixedly connected with the two sides of the tapered plug block (5) respectively, the cover plate (2) is slidably sleeved on the two inner rods (7), and the top end and the bottom end of the tension spring (8) are fixedly connected with the bottom end of the corresponding inner rod (7) and the bottom inner wall of the outer tube (6) respectively.

3. The oil exploitation sampling device according to claim 1, wherein the elastic dislocation jacking assembly comprises a square jacking rod (11) and a first spring (12), the bottom end of the square jacking rod (11) is fixedly connected with the top of the pressing plate (10), the top end of the square jacking rod (11) extends into the rectangular box (3), the rectangular box (3) is sleeved on the square jacking rod (11) in a sealing and sliding manner, the square jacking rod (11) is located below the conical block (5) and matched with the conical block (5), the top end and the bottom end of the first spring (12) are fixedly connected with the inner wall of the top of the rectangular groove (9) and the top of the pressing plate (10), and the first spring (12) is movably sleeved on the square jacking rod (11).

4. The oil exploitation sampling device according to claim 3, wherein the guide driving assembly comprises a guide column (16) and a connecting block (17), the top end and the bottom end of the guide column (16) are fixedly connected with the top inner wall and the bottom inner wall of the rectangular hole (15) respectively, the connecting block (17) is slidably sleeved on the guide column (16), the right side of the connecting block (17) is fixedly connected with the bottom of the left side of the plugging plate (14), and the left side of the bottom of the connecting block (17) is fixedly connected with the right side of the top of the pressing plate (10).

5. The oil exploitation sampling device according to claim 1, wherein a sealing rubber sheet (18) is fixedly bonded to the right side of the sealing plate (14), the right side of the sealing rubber sheet (18) is flush with the inner wall of the right side of the rectangular box (3) and the left end of the L-shaped discharge pipe (19), and the sealing plate (14) is located below the left end of the L-shaped discharge pipe (19).

6. The oil extraction sampling device according to claim 1, wherein the outer side of the conical block (5) is bonded and sleeved with a first sealing rubber sleeve, and the outer side of the first sealing rubber sleeve is in close contact with the inner wall of the conical oil inlet hole (4).

7. The oil extraction sampling device according to claim 1, wherein a square through hole is formed in the inner wall of the top of the rectangular groove (9), a second sealing rubber sleeve is bonded and sleeved on the outer side of the square top rod (11), and the outer side of the second sealing rubber sleeve is slidably sleeved with the inner wall of the square through hole.