Hydraulic lifting oil extraction equipment

By incorporating a built-in screw pump and a squeezing and engaging drive mechanism, the problem of low oil production efficiency and poor stability in hydraulic lift oil production equipment has been solved, achieving stable and efficient oil production and impurity removal.

CN121781891APending Publication Date: 2026-04-03QINGDAO LINHUI ENERGY EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-23
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing hydraulic lift oil production equipment has low oil production efficiency during operation, makes it difficult to control the stability of the oil pump in the outer pipe, and the hydraulic drive method is prone to impurity accumulation, affecting drive stability.

Method used

A hydraulic lift oil production device was designed, which adopts a built-in screw pump structure, combined with a squeezing engagement, squeezing drive and vibration filtration mechanism. The connection stability between the screw pump and the outer pipe is improved by the cooperation of the support and diagonal brace, and the impurities are effectively removed by the combination of hydraulic drive and filter plate.

Benefits of technology

It improves the stability and efficiency of hydraulic lift oil production, prevents screw pump loosening, reduces impurity accumulation, and ensures continuous oil production.

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Patent Text Reader

Abstract

The invention discloses hydraulic lifting oil extraction equipment, and belongs to the technical field of lifting oil extraction equipment. The hydraulic lifting oil extraction equipment is provided with an outer pipe and a screw pump arranged in the outer pipe; comprising a nesting ring which is nested in the inner surface of the outer pipe, a first supporting piece and a second supporting piece are installed on the outer surface of the nesting ring, the first supporting piece is connected with the second supporting piece through an extrusion clamping mechanism, and meanwhile a liquid inlet pipe is nested in the inner surface of the outer pipe. According to the hydraulic lifting oil extraction equipment, the screw pump convenient to be internally arranged is arranged, circulating liquid in the backflow box is conveyed through the motor on the ground, so that the first hydraulic driver assembled by the screw pump is controlled to work, the stability of hydraulic lifting oil extraction can be improved, the stability of connection between the screw pump and the outer pipe is improved through the inclined strut assembled by the screw pump, and the service life of the hydraulic lifting oil extraction equipment is prolonged. The screw pump prevents falling and loosening, avoids damage caused by offset impact, improves use stability, and prevents crude oil from affecting normal work of the screw pump through the sealing mechanism.
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Description

Technical Field

[0001] This invention relates to the field of lifting oil production equipment technology, specifically a hydraulic lifting oil production equipment. Background Technology

[0002] Lifting oil production equipment is used in the oil extraction process. It can extract oil by lifting with a lever or by gas lifting. It can also be hydraulically driven. Controlling the oil production equipment reduces the workload of electrical equipment and improves the stability of oil production. However, during use, it is inconvenient to control the stability of the oil production process and affects the driving effect of oil production.

[0003] To overcome the aforementioned shortcomings, the existing technology (Chinese patent application CN201120434813.3, filed on November 7, 2011) for hydraulically driven oil production devices in highly deviated wells employs hydraulically driven lifting, eliminating the moving parts of the sucker rod and completely eliminating rod and tubing wear; it uses surface pressure to control the reversing of the downhole pump, ensuring full-stroke operation during lifting; the surface dynamic hydraulic reversing eliminates the need for a reversing valve, avoiding problems such as short lifespan and poor reliability of the reversing mechanism; the surface facilities are simple, and installation, maintenance, and management are convenient; it also... There is prior art (Chinese patent application CN202510576106.4, filed May 6, 2025) of an intelligent control hydraulic lift oil extraction device, which positions the hydraulic cylinder through support pipes and utilizes telescopic rods installed internally within the support pipes to release kinetic energy loads through their telescopic movement when the hydraulic cylinder is subjected to external potential energy, thus maintaining the installation stability of the hydraulic cylinder; and prior art (application CN202411430484.3, filed May 6, 2025) of a different type. (Chinese patent application dated October 14, 2024) A hydraulic lift oil production system is described. The power pump uses a speed-adjustable motor to realize the up-and-down movement of the plunger in the downhole hydraulic feedback pump system, thereby achieving normal oil extraction. A dual-channel structure is adopted, with the power fluid entering the large and small hydraulic cylinders through the power fluid channel, causing the large and small hydraulic cylinders to move upwards. Under the hydraulic pressure of the lower feedback pump, the large and small hydraulic cylinders move downwards, thus resetting. The large and small hydraulic cylinders have advantages such as high sealing reliability and long service life. The system employs a large-flow-channel floating valve and a fixed valve structure, which not only reduces the resistance of crude oil entering the pump but also allows for use in highly deviated wells and horizontal wells. The sealing pipe uses a rigid seal, resulting in a long service life. While existing technologies can complete oil production, they generally use alternating hydraulic drive during operation, leading to low oil production efficiency. Furthermore, during hydraulic oil production, it is difficult to control the stability of the oil pump operating within the outer pipe, affecting continuous oil production. Additionally, the hydraulic drive method, with prolonged circulation, is prone to impurity accumulation, affecting drive stability.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing stainless steel mixing tanks used for electroplating additives. Summary of the Invention

[0005] The purpose of this invention is to provide a hydraulic lift oil production device to solve the problems mentioned in the background art, which generally adopts a hydraulic alternating drive method for oil production during operation, resulting in low oil production efficiency. Furthermore, it is difficult to control the stability of the oil pump operating in the outer pipe during hydraulic oil production, affecting the continuous oil production effect. In addition, the hydraulic drive method, with long-term circulation, is prone to the accumulation of impurities, affecting the drive stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic lift oil production device, comprising an outer pipe and a screw pump built into the outer pipe; including: a nested ring, nested on the inner surface of the outer pipe, and a support member 1 and a support member 2 respectively installed on the outer surface of the nested ring, and the support member 1 being connected to the support member 2 through a squeezing and locking mechanism; a liquid inlet pipe nested on the inner surface of the outer pipe, and a squeezing pipe 1 installed on the outer surface of the liquid inlet pipe, and the squeezing pipe 1 being connected to a diagonal brace through a squeezing drive mechanism; a sealing member connected to the liquid inlet pipe through a squeezing sealing mechanism; a hydraulic actuator 1 installed on the outer surface of the liquid inlet pipe, and a liquid outlet pipe installed on the outer surface of the hydraulic actuator 1; a return box installed on the outer surface of the liquid outlet pipe, and a vibration filter mechanism built into the inner surface of the return box for vibrating cleaning of impurities.

[0007] Preferably, the compression and engaging mechanism further includes a nested component mounted on the outer surface of the first support member, and the nested component is embedded in the inner surface of the second support member. A worm gear is rotatably connected to the inner surface of the first support member, and a worm wheel is meshed with the outer surface of the worm gear. A threaded rod is mounted on the outer surface of the worm wheel, and a compression rod is threadedly connected to the outer surface of the threaded rod. A locking component is obliquely slidably connected to the outer surface of the compression rod, and the locking component is limited and engaged on the inner surface of the second support member.

[0008] Preferably, the first support member forms an embedded structure with the second support member through a nested member, and the first support member forms a meshing rotation structure through a worm and a worm wheel, and the worm wheel forms a threaded structure through a threaded rod and a pressing rod. At the same time, the pressing rod and the clamping member form an oblique sliding structure, and the first support member forms a limiting and engaging structure with the second support member through the clamping member.

[0009] Preferably, the extrusion drive mechanism further includes a one-way valve 1 mounted on the outer surface of the extrusion tube 1, and a telescopic assembly mounted on the outer surface of the extrusion tube 1. A pressure valve 1 is assembled on the upper surface of the telescopic assembly. A telescopic rod is telescopically connected to the inner surface of the telescopic assembly. A moving block is mounted on the lower surface of the telescopic rod and limits the moving block to the inner surface of the support member 2. A diagonal brace is rotatably connected to the outer surface of the moving block. A bottom support is rotatably connected between the diagonal brace and the support member 2. A metal contact is slidably connected to the inner surface of the diagonal brace. A compression spring is elastically connected between the metal contact and the diagonal brace, and the diagonal brace and the metal contact are attached to the inner wall of the outer tube.

[0010] Preferably, the extrusion tube 1 and the one-way valve 1 form an integrated structure, and the extrusion tube 1 and the pressure valve 1 form a pressure detection structure through the telescopic component, and the telescopic component forms a telescopic structure through the telescopic rod and the moving block. At the same time, the moving block and the support member 2 form a limiting sliding structure, and the support member 2 forms an oblique support structure through the moving block, the bottom support and the diagonal support. The screw pump forms a central support structure through the diagonal support and the outer tube, and the diagonal support and the support member 1 also form a telescopic rotation structure.

[0011] Preferably, a hydraulic actuator is installed on the outer surface of the inlet pipe, and a drive blade is rotatably connected to the inner surface of the hydraulic actuator. An outlet pipe is installed on the right side of the outer surface of the hydraulic actuator. At the same time, an oil delivery rod is installed on the outer surface of the drive blade and rotated inside the screw pump. An oil delivery pipe and an oil delivery pipe are installed on the outer surface of the screw pump and the oil delivery pipe passes through the inner surface of the outer pipe.

[0012] Preferably, the inlet pipe forms a hydraulic rotation structure with the drive blades via the hydraulic actuator one, and the drive blades form an integrated structure with the oil delivery rod. The hydraulic actuator one forms a reflux structure with the reflux box via the outlet pipe, and the screw pump forms an oil outlet structure with the oil delivery pipe one and the oil delivery pipe two.

[0013] Preferably, the compression sealing mechanism further includes a compression tube two installed on the outer surface of the liquid inlet pipe, and a pressure valve two installed on the outer surface of the compression tube two. A sealing element is installed on the lower side of the outer surface of the compression tube two, and the sealing element is nested in the bottom of the screw pump. At the same time, a connecting element is installed on the inner surface of the sealing element. The liquid inlet pipe forms a compression sealing structure through the compression tube two, the pressure valve two, and the sealing element, and the sealing element and the connecting element form an integrated structure.

[0014] Preferably, a drive pipe is installed on the upper side of the outer surface of the inlet pipe, and a one-way valve and a hydraulic actuator are installed on the outer surface of the drive pipe. The hydraulic actuator is installed on the return box, and a return pipe is connected between the other end of the hydraulic actuator and the return box. Meanwhile, a camshaft is rotatably connected to the inner surface of the hydraulic actuator, and a filter plate is connected to the upper side of the outer surface of the camshaft. A slider is installed on the outer surface of the filter plate, and the slider is elastically raised and lowered on the inner surface of the return box.

[0015] Preferably, the inlet pipe is connected to the hydraulic actuator 2 via the drive pipe, the hydraulic actuator 2 is connected to the return box via the return pipe, the hydraulic actuator 2 is connected to the camshaft via ...

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This hydraulic lift oil production equipment is equipped with an internal screw pump for easy operation. A ground-based motor delivers circulating fluid from the return tank, thereby controlling the hydraulic actuator of the screw pump assembly to operate. This improves the stability of hydraulic lift oil production. Furthermore, the inclined brace of the screw pump assembly enhances the stability of its connection to the external pipe, preventing sagging and loosening, and avoiding damage from offset impacts, thus improving operational stability. A sealing mechanism also prevents crude oil from affecting the normal operation of the screw pump.

[0017] 2. This hydraulic lift oil production equipment is equipped with a compression locking mechanism. Through a nested ring assembled with a screw pump, support component one and support component two are effectively nested and assembled. These nested components interlock, and the rotation of the worm gear on support component one is manually controlled. This controls the threaded rod assembled with the worm wheel, adjusting the position of the compression rod and thus compressing and adjusting the position of the locking component. This achieves a limiting and locking engagement between support component one and support component two. The diagonal braces on support component one and support component two further enhance the stability of the connection between the screw pump and the outer pipe. Furthermore, during operation, the telescopic component assembled with compression pipe one effectively controls the connection between support component one and support component two. The angle of the diagonal brace prevents displacement of the screw pump. Furthermore, a compression drive mechanism is provided to facilitate liquid intake through the inlet pipe, effectively driving liquid transport within the hydraulic actuator. This controls the drive blades to rotate the oil delivery rod within the screw pump, coordinating with the outlet pipe for liquid discharge. This allows for hydraulic drive of the screw pump, reducing the use of electronic equipment, improving crude oil transport stability, and lifting crude oil through oil delivery pipes one and two. Additionally, a compression sealing mechanism is provided, which, through the compression pipe two assembled with the inlet pipe, effectively controls the seal to contact the outer pipe, improving the sealing performance during screw pump assembly.

[0018] 3. This hydraulic lift oil production equipment is equipped with a drive pipe, which effectively controls the hydraulic actuator to drive the camshaft to rotate. This allows the filter plate to effectively vibrate and clean the filtered impurities while filtering, preventing blockage of the inlet pipe and improving the stability of the hydraulic drive. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the outer tube of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the outer tube of the present invention in half-section view; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the outer tube of the present invention; Figure 4 This is a partial cross-sectional perspective view of the three-dimensional structure of the support member of the present invention; Figure 5 For the present invention Figure 4 Enlarged 3D structural diagram at point A in the middle; Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the diagonal brace of the present invention; Figure 7 For the present invention Figure 6 Enlarged 3D structural diagram at point B; Figure 8 This is a partial cross-sectional three-dimensional structural schematic diagram of the reflux box of the present invention; Figure 9 This is a partial cross-sectional three-dimensional structural schematic diagram of the hydraulic actuator of the present invention.

[0020] In the diagram: 1. Outer pipe; 2. Screw pump; 3. Nested ring; 4. Support component one; 5. Support component two; 6. Nested component; 7. Worm gear; 8. Worm wheel; 9. Threaded rod; 10. Extrusion rod; 11. Clamping device; 12. Inlet pipe; 13. Extrusion pipe one; 14. One-way valve one; 15. Telescopic assembly; 16. Pressure valve one; 17. Telescopic rod; 18. Moving block; 19. Diagonal brace; 20. Bottom support; 21. Extrusion spring; 22. 23. Metal contact parts; 24. Hydraulic actuator one; 25. Drive blade; 26. Discharge pipe; 27. Oil delivery rod; 28. Extrusion pipe two; 29. ​​Pressure valve two; 30. Seal; 31. Connector; 32. Return box; 33. Drive pipe; 34. Check valve two; 35. Hydraulic actuator two; 36. Return pipe; 37. Camshaft; 38. Filter plate; 39. Slider; 40. Oil delivery pipe one; 51. Oil delivery pipe two. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-9 The present invention provides a technical solution: a hydraulic lift oil production device, which is equipped with an outer pipe 1 and a screw pump 2 built into the outer pipe 1.

[0023] Example 1: As Figures 1-9 The present invention provides the following technical solution: a hydraulic lift oil production device, comprising: a nested ring 3 nested on the inner surface of an outer pipe 1, and a support member 4 and a support member 5 respectively installed on the outer surface of the nested ring 3, and the support member 4 being connected to the support member 5 through a compression locking mechanism; an inlet pipe 12 nested on the inner surface of the outer pipe 1, and a compression pipe 13 installed on the outer surface of the inlet pipe 12, and the compression pipe 13 being connected to a diagonal brace 19 through a compression driving mechanism; a seal 29 connected to the inlet pipe 12 through a compression sealing mechanism; a hydraulic actuator 23 installed on the outer surface of the inlet pipe 12; an outlet pipe 25 installed on the outer surface of the hydraulic actuator 23; a return box 31 installed on the outer surface of the outlet pipe 25; and a vibration filter mechanism built into the inner surface of the return box 31 for vibrating cleaning of impurities.

[0024] In use, the screw pump 2 is effectively nested inside the outer tube 1. The screw pump 2 is stably assembled with support component 4 and support component 5. Simultaneously, the extrusion tube 13, assembled with the inlet pipe 12, controls the contact between the diagonal brace 19, which is rotatably connected to support component 4 and support component 5, and the inner surface of the outer tube 1. This improves the stability of the connection between the screw pump 2 and the outer tube 1, preventing loosening. The extrusion tube 27 further enhances the seal between the screw pump 2 and the outer tube 1, improving the efficiency of the screw pump 2. When the inlet pipe 12 controls the hydraulic actuator 23 to operate, the liquid is transported through the outlet pipe 25 assembled with the hydraulic actuator 23 to the return box 31. Filtration is then performed through the filter plate 37 assembled in the return box 31, and the vibration mechanism assembled in the return box 31 further enhances the filtration effect of the filter plate 37.

[0025] Example 2: Figures 1-7The technical solution shown, based on Embodiment 1, further discloses the stability and centering of the screw pump 2 assembly, preventing loosening during crude oil pumping, and improving sealing to prevent direct contact between crude oil and the screw pump 2, thus avoiding impact on working performance. It solves the problem that in oil extraction, which generally uses alternating hydraulic drive, the oil extraction efficiency is low, and it is difficult to control the stability of the oil pump operating within the outer pipe 1 during hydraulic oil extraction, affecting continuous oil extraction. The specific details are as follows: The squeezing and engaging mechanism also includes a nested part 6 installed on the outer surface of support member 1 4, which is embedded within the inner surface of support member 2 5. A worm gear 7 is rotatably connected to the inner surface of support member 1 4, and a worm wheel 8 is meshed with the outer surface of the worm gear 7. A threaded rod 9 is installed on the outer surface of the worm wheel 8, and a squeezing rod 10 is threadedly connected to the outer surface of the threaded rod 9. A locking piece 11 is obliquely slidably connected to the outer surface of the squeezing rod 10, and the locking piece 11 is limited and engaged with the inner surface of support member 2 5. Figure 4 and Figure 5 As shown, support member 4 is embedded in support member 5 via nesting member 6, and support member 4 is meshed and rotated via worm gear 7 and worm wheel 8. Worm wheel 8 is threaded via threaded rod 9 and pressing rod 10. Simultaneously, pressing rod 10 and clamping member 11 form an oblique sliding structure, and support member 4 is limited and engaged with support member 5 via clamping member 11. Figure 4 and Figure 5 As shown, the extrusion drive mechanism also includes a one-way valve 14 mounted on the outer surface of the extrusion tube 13, a telescopic assembly 15 mounted on the outer surface of the extrusion tube 13, a pressure valve 16 assembled on the upper surface of the telescopic assembly 15, a telescopic rod 17 telescopically connected to the inner surface of the telescopic assembly 15, a moving block 18 mounted on the lower surface of the telescopic rod 17, and the moving block 18 is limited and connected to the inner surface of the support member 2 5. A diagonal brace 19 is rotatably connected to the outer surface of the moving block 18, and a bottom support 20 is rotatably connected between the diagonal brace 19 and the support member 2 5. A metal contact 22 is slidably connected to the inner surface of the diagonal brace 19, and a compression spring 21 is elastically connected between the metal contact 22 and the diagonal brace 19, thus attaching the diagonal brace 19 and the metal contact 22 to the inner wall of the outer tube 1. Figure 6 and Figure 7 As shown, the extrusion tube 13 and the one-way valve 14 form an integrated structure. The extrusion tube 13 and the pressure valve 16 form a pressure detection structure through the telescopic assembly 15. The telescopic assembly 15 and the moving block 18 form a telescopic structure through the telescopic rod 17. At the same time, the moving block 18 and the support member 2 5 form a limiting sliding structure. The support member 2 5 and the diagonal brace 19 form an oblique support structure through the moving block 18 and the bottom support 20. The screw pump 2 and the outer tube 1 form a central support structure through the diagonal brace 19. The diagonal brace 19 and the support member 4 also form a telescopic rotation structure. Figure 6 and Figure 7As shown, a hydraulic actuator 23 is mounted on the outer surface of the inlet pipe 12, and a drive blade 24 is rotatably connected to the inner surface of the hydraulic actuator 23. An outlet pipe 25 is mounted on the right side of the outer surface of the hydraulic actuator 23. An oil delivery rod 26 is mounted on the outer surface of the drive blade 24 and rotates within the screw pump 2. An oil delivery pipe 39 and an oil delivery pipe 40 are mounted on the outer surface of the screw pump 2, with the oil delivery pipe 40 passing through the inner surface of the outer pipe 1. Figure 6 and Figure 7 As shown, the inlet pipe 12 forms a hydraulic rotation structure with the drive blade 24 via the hydraulic actuator 23, and the drive blade 24 forms an integrated structure with the oil delivery rod 26. The hydraulic actuator 23 forms a return structure with the return box 31 via the outlet pipe 25, while the screw pump 2 forms an oil outlet structure with the oil delivery pipe 39 and the oil delivery pipe 40. Figure 6 and Figure 7 As shown, the compression sealing mechanism also includes a compression tube 27 installed on the outer surface of the inlet pipe 12, and a pressure valve 28 installed on the outer surface of the compression tube 27. A sealing element 29 is installed on the lower side of the outer surface of the compression tube 27, and the sealing element 29 is nested in the bottom of the screw pump 2. Meanwhile, a connector 30 is installed on the inner surface of the sealing element 29. The inlet pipe 12 forms a compression sealing structure through the compression tube 27, the pressure valve 28, and the sealing element 29, and the sealing element 29 and the connector 30 form an integrated structure.

[0026] Before inserting the screw pump 2 into the outer tube 1, support component 4 and support component 5 are assembled on the outer surface of the screw pump 2. Nested rings 3 are assembled on the inner surfaces of support component 4 and support component 5 respectively. Support component 4 and support component 5 are then nested on the outer surface of the screw pump 2. The nested component 6 assembled with support component 4 is embedded in the inner surface of support component 5. The locking component 11 assembled with support component 4 is nested in support component 5. This controls the rotation of the worm gear 7 in support component 4, which in turn engages with the threaded rod 9 of the adjusting worm wheel 8, causing it to rotate on the inner surface of support component 4. This allows the threaded adjusting extrusion rod 10 to slide on the inner surface of support component 4, thereby controlling the extrusion rod 10 to drive the locking component 11 to stably engage with support component 5. 5. The support components 4 and 5 are nested and engaged with the screw pump 2 to prevent loosening. The circulating fluid in the return tank 31 is then transported to the hydraulic actuator 23 via the inlet pipe 12 through the pump body assembled on the ground. Before transport, the one-way valve 14 is opened to transport the circulating fluid to the telescopic assembly 15. The telescopic rod 17 is adjusted by extending and retracting the telescopic assembly 15. The movable block 18 installed on the telescopic rod 17 extends and retracts on the inner surfaces of the support components 4 and 5, respectively. This controls the rotation of the inclined brace 19 connected to the movable block 18, and the bottom support 20 connecting the inclined brace 19 to the support component 4 or support component 5. This controls the deflection of the inclined brace 19, thereby aligning the outer side of the inclined brace 19 with the inner surface of the outer pipe 1. By ensuring proper fit, the stability of the screw pump 2 assembly can be improved, preventing loosening during use. Simultaneously, the metal contact 22 connected to the outer tube 1 via the compression spring 21 within the diagonal brace 19 effectively contacts the outer tube 1, enhancing the stability of the diagonal brace 19. This also facilitates signal connection, providing a warning when the diagonal brace 19 becomes loose. Furthermore, when the diagonal brace 19 is stable, it improves the centering stability of the screw pump 2 within the outer tube 1, preventing impact damage during crude oil pumping and enhancing the stability of the connection between the screw pump 2 and the outer tube 1. After adjusting the diagonal brace 19, the one-way valve 14 can be closed, and pressure detection can be performed in conjunction with the pressure valve 16 installed on the telescopic assembly 15. A warning is issued when the pressure decreases, improving the stability of the centering limit. After the one-way valve 14 is closed, the valve body on the extrusion tube 27 can be opened, improving the delivery of liquid from the extrusion tube 27 to the seal 29. The seal 29, in conjunction with the connecting piece 30, enhances its operational stability. The valve body is then closed, and the pressure valve 28 installed on the extrusion tube 27 performs a detection and warning function, further improving operational stability. With the support of the diagonal brace 19 and the seal 29 driving operational stability, the circulating liquid in the inlet pipe 12 can be effectively delivered to the hydraulic actuator 23 assembled on the screw pump 2. This drives the drive blades 24 within the hydraulic actuator 23 to rotate, thereby effectively returning the liquid to the return box 31 through the outlet pipe 25 assembled on the hydraulic actuator 23, improving return stability.This hydraulically drives the oil delivery rod 26, mounted on the drive blade 24, to rotate in the screw pump 2, thereby transporting crude oil to the first oil delivery pipe 39 and the second oil delivery pipe 40 for discharge, improving the stability of crude oil output and enhancing the hydraulic lift oil production effect.

[0027] Example 3: Figure 8 and Figure 9 The technical solution shown, based on Embodiment 2, further discloses a circulating liquid filtration process to avoid affecting the circulating liquid inlet effect, improve the working efficiency of the circulating liquid, increase the stability of the hydraulic lift, and solve the problem that in hydraulic drive, impurities are easily accumulated during long-term circulation, affecting the stability of the drive. The specific details are as follows: A drive pipe 32 is installed on the upper side of the outer surface of the inlet pipe 12, and a one-way valve 33 and a hydraulic actuator 34 are installed on the outer surface of the drive pipe 32. The hydraulic actuator 34 is installed on the return box 31, and a return pipe 35 connects the other end of the hydraulic actuator 34 to the return box 31. A camshaft 36 is rotatably connected to the inner surface of the hydraulic actuator 34, and a filter plate 37 is connected to the upper side of the outer surface of the camshaft 36. A slider 38 is installed on the outer surface of the filter plate 37, and the slider 38 elastically rises and falls on the inner surface of the return box 31. Figure 8 and Figure 9 As shown, the inlet pipe 12 is connected to the hydraulic actuator 34 via the drive pipe 32, and the hydraulic actuator 34 is connected to the return box 31 via the return pipe 35 to form a return structure. The hydraulic actuator 34 is connected to the camshaft 36 to form a rotation structure, and the camshaft 36 is connected to the filter plate 37 to form a compression structure. The filter plate 37 is connected to the return box 31 via the slider 38 to form an elastic lifting structure.

[0028] When the circulating liquid in the outlet pipe 25 is returned to the return box 31, it will be filtered by the filter plate 37 in the return box 31. The liquid is fed in through the drive pipe 32 connected to the hydraulic actuator 34 assembled in the return box 31. Before the liquid is fed in, the one-way valve 33 connected to the drive pipe 32 assembled in the inlet pipe 12 is opened, which controls the hydraulic actuator 34 to drive the camshaft 36 to rotate. When the camshaft 36 is used at equal distances, it will work synchronously with the synchronous belt assembled on the rear side of the camshaft 36. When the hydraulic actuator 34 is working, it will be transported to the return box 31 in conjunction with the return pipe 35 to improve the return effect. The hydraulic actuator 34 drives the camshaft 36 to squeeze the filter plate 37. The filter plate 37, in conjunction with the installed slider 38, effectively vibrates and transports impurities in the return box 31, improving the stability of impurity transport and improving the filtration effect.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic lift oil production device, comprising an outer pipe (1) and a screw pump (2) built into the outer pipe (1). Its features are, include: Nested ring (3) is nested on the inner surface of the outer tube (1), and support member one (4) and support member two (5) are respectively installed on the outer surface of the nested ring (3). Support member one (4) is connected to support member two (5) through a squeezing and locking mechanism. At the same time, the inner surface of the outer tube (1) is nested with an inlet pipe (12), and the outer surface of the inlet pipe (12) is equipped with a squeezing pipe one (13). The squeezing pipe one (13) is connected to a diagonal brace (19) through a squeezing drive mechanism. At the same time, the inlet pipe (12) is connected to a sealing member (29) through a squeezing sealing mechanism. The outer surface of the inlet pipe (12) is equipped with a hydraulic actuator one (23), and the outer surface of the hydraulic actuator one (23) is equipped with an outlet pipe (25). The outer surface of the outlet pipe (25) is equipped with a return box (31), and the inner surface of the return box (31) is equipped with a vibration filter mechanism for cleaning impurities by vibration.

2. The hydraulic lift oil production equipment according to claim 1, characterized in that: The compression locking mechanism also includes a nested part (6) installed on the outer surface of the support member one (4), and the nested part (6) is embedded in the inner surface of the support member two (5). The inner surface of the support member one (4) is rotatably connected to a worm gear (7), and the outer surface of the worm gear (7) is meshed with a worm wheel (8). At the same time, a threaded rod (9) is installed on the outer surface of the worm wheel (8), and a compression rod (10) is threadedly connected to the outer surface of the threaded rod (9). The outer surface of the compression rod (10) is obliquely slidably connected to a locking piece (11), and the locking piece (11) is limited and locked onto the inner surface of the support member two (5).

3. The hydraulic lift oil production equipment according to claim 2, characterized in that: The first support member (4) forms an embedded structure with the second support member (5) through the nesting member (6), and the first support member (4) forms a meshing rotation structure with the worm gear (7) and the worm wheel (8), and the worm wheel (8) forms a threaded structure with the extrusion rod (10) through the threaded rod (9), while the extrusion rod (10) forms an oblique sliding structure with the clamp (11), and the first support member (4) forms a limiting engagement structure with the second support member (5) through the clamp (11).

4. The hydraulic lift oil production equipment according to claim 1, characterized in that: The extrusion drive mechanism also includes a one-way valve (14) installed on the outer surface of the extrusion tube (13), and a telescopic assembly (15) installed on the outer surface of the extrusion tube (13). A pressure valve (16) is assembled on the upper surface of the telescopic assembly (15). At the same time, a telescopic rod (17) is telescopically connected to the inner surface of the telescopic assembly (15). A moving block (18) is installed on the lower surface of the telescopic rod (17). The moving block (18) is limited and connected to the inner surface of the support member (5). A diagonal brace (19) is rotatably connected to the outer surface of the moving block (18). A bottom support (20) is rotatably connected between the diagonal brace (19) and the support member (5). A metal contact (22) is slidably connected to the inner surface of the diagonal brace (19). A compression spring (21) is elastically connected between the metal contact (22) and the diagonal brace (19). The diagonal brace (19) and the metal contact (22) are attached to the inner wall of the outer tube (1).

5. The hydraulic lift oil production equipment according to claim 4, characterized in that: The extrusion tube (13) and the one-way valve (14) form an integrated structure. The extrusion tube (13) and the pressure valve (16) form a pressure detection structure through the telescopic component (15). The telescopic component (15) and the moving block (18) form a telescopic structure through the telescopic rod (17). At the same time, the moving block (18) and the support member (5) form a limiting sliding structure. The support member (5) and the bottom support (20) form an oblique support structure through the moving block (18) and the diagonal support (19). The screw pump (2) and the outer tube (1) form a central support structure through the diagonal support (19). At the same time, the diagonal support (19) and the support member (4) form a telescopic rotation structure.

6. The hydraulic lift oil production equipment according to claim 1, characterized in that: The outer surface of the inlet pipe (12) is equipped with a hydraulic actuator (23), and the inner surface of the hydraulic actuator (23) is rotatably connected with a drive blade (24). The right side of the outer surface of the hydraulic actuator (23) is equipped with an outlet pipe (25). At the same time, the outer surface of the drive blade (24) is equipped with an oil delivery rod (26), and the oil delivery rod (26) is rotated inside the screw pump (2). The outer surface of the screw pump (2) is equipped with an oil delivery pipe (39) and an oil delivery pipe (40), and the oil delivery pipe (40) passes through the inner surface of the outer pipe (1).

7. The hydraulic lift oil production equipment according to claim 6, characterized in that: The inlet pipe (12) forms a hydraulic rotation structure with the hydraulic actuator (23) and the drive blade (24), and the drive blade (24) and the oil delivery rod (26) form an integrated structure. The hydraulic actuator (23) forms a return structure with the outlet pipe (25) and the return box (31). At the same time, the screw pump (2) forms an oil outlet structure with the oil delivery pipe (39) and the oil delivery pipe (40).

8. The hydraulic lift oil production equipment according to claim 1, characterized in that: The compression sealing mechanism also includes a compression tube two (27) installed on the outer surface of the liquid inlet pipe (12), and a pressure valve two (28) is installed on the outer surface of the compression tube two (27), and a sealing element (29) is installed on the lower side of the outer surface of the compression tube two (27), and the sealing element (29) is nested in the bottom of the screw pump (2), while a connector (30) is installed on the inner surface of the sealing element (29); the liquid inlet pipe (12) forms a compression sealing structure through the compression tube two (27), the pressure valve two (28), and the sealing element (29), and the sealing element (29) forms an integrated structure.

9. The hydraulic lift oil production equipment according to claim 1, characterized in that: A drive pipe (32) is installed on the upper side of the outer surface of the inlet pipe (12), and a one-way valve (33) and a hydraulic actuator (34) are installed on the outer surface of the drive pipe (32). The hydraulic actuator (34) is installed on the return box (31), and a return pipe (35) is connected between the other end of the hydraulic actuator (34) and the return box (31). Meanwhile, a camshaft (36) is rotatably connected to the inner surface of the hydraulic actuator (34), and a filter plate (37) is connected to the upper side of the outer surface of the camshaft (36). A slider (38) is installed on the outer surface of the filter plate (37), and the slider (38) is elastically raised and lowered on the inner surface of the return box (31).

10. A hydraulic lift oil production device according to claim 9, characterized in that: The inlet pipe (12) is connected to the hydraulic actuator (34) via the drive pipe (32), and the hydraulic actuator (34) is connected to the return box (31) via the return pipe (35). The hydraulic actuator (34) is connected to the camshaft (36) via the camshaft (36) via the camshaft (36) via the camshaft (36) via the camshaft (37) via the camshaft (37) via the camshaft (38) via the camshaft (38) via the camshaft (39 ...

Citation Information

Patent Citations

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