Non-counterweight spring energy storage type oil pumping unit

Abstract

The invention provides a spring energy storage type oil pumping unit without a counter weight, and belongs to the technical field of oil pumping units. Comprising a base, driving equipment and a protective shell are fixedly connected to the top of the base, an arc-shaped shell is fixedly connected to the top of the protective shell, and an energy storage assembly used for reducing the load of the driving equipment and reducing energy consumption is arranged in the protective shell and comprises an upper top plate slidably clamped into the top of the protective shell; and a baffle plate is fixedly connected into the top of the protective shell. By arranging the energy storage assembly, storage and release of part of energy can be achieved through compression and release of an energy storage spring, so that the load of driving equipment is relieved, then energy consumption is reduced, meanwhile, by arranging the anti-skid assembly, the falling problem caused by disconnection or out-of-control of the weight box can be effectively prevented, and then the situation that the weight box crashes the equipment is avoided; and meanwhile, the operation reliability of the system is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of oil pumping units, in particular to a weightless spring energy storage type oil pumping unit. Background Art

[0002] The oil pumping unit is an important equipment in the oil extraction industry used to extract crude oil from oil wells. Its core function is to drive the sucker rod to reciprocate through a mechanical drive device to transport the crude oil in the oil well to the ground.

[0003] In the prior art, a Chinese patent document with publication number CN202745826U proposes a hydraulic spring energy storage type oil pumping unit, in which the oil inlet end of the energy storage tank of the oil pumping unit is connected to a manual ball valve A, an oil inlet solenoid valve and a piston cylinder, and the oil discharge end is connected to a manual ball valve B, a motor and an oil pump, an oil discharge solenoid valve and a piston cylinder; a piston and a piston rod fixed to each other, an upper and lower stroke limit switch and an energy storage spring are arranged in the piston cylinder; although this technology can meet the requirements of oil well exploitation, has high production efficiency, the stroke frequency can be adjusted steplessly, has a small volume and mass, is flexible to move, and is easy to maintain, but the What is consistent with the traditional method is that traditional oil pumping units usually balance the load of the sucker rod through the weight of the counterweight box, thereby reducing the energy consumption of the driving equipment. However, in actual operation, when the sucker rod is moving downward to pump oil, the counterweight box needs to rise to maintain balance. At this time, if the counterweight box is lifted only by the deadweight of the sucker rod, it will not be able to fully reduce the burden on the driving equipment, which will cause the driving equipment to still consume a lot of energy to push the counterweight box up. In addition, due to the excessive weight of the counterweight box, it will also cause disconnection problems of connecting components, thereby affecting the stability and safety of the equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a non-counterweight spring energy storage oil pumping unit to solve the problem that the existing oil pumping unit has an overweight counterweight box which causes high energy consumption of the driving equipment and causes disconnection of connecting parts.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The non-counterweight spring energy storage oil pump comprises a base, the top of the base is fixedly connected with a driving device and a protective shell, the top of the protective shell is fixedly connected with an arc shell, the inside of the protective shell is rotatably connected with a chain, the output end of the driving device passes through the side wall of the base and is transmission-connected with one side of the bottom of the chain, the inside of the chain is fixedly connected with a fixed block, one side of the fixed block is installed with an annular frame, one side of the fixed block is rotatably connected with a rotating shaft, the top and bottom of the rotating shaft are rotatably connected with rollers respectively, the rollers are rotatably clamped in the inside of the square hole inside the annular frame, the top of the annular frame is fixedly connected with a counterweight box, and the inside of the protective shell is provided with a An energy storage component for reducing equipment load and energy consumption, the energy storage component includes an upper top plate slidably clamped to the top of a protective shell, the top of the protective shell is fixedly connected to the inside of the top, the position of the back plate is located at the bottom of the upper top plate, and the bottom of the upper top plate is fixedly connected to multiple energy storage springs and multiple pull ropes, the bottom end of the energy storage spring is fixedly connected to the top of the back plate, the top end of the pull rope passes through the interior of the energy storage spring and is fixedly connected to the bottom of the upper top plate, the bottom end of the pull rope passes through the interior of the back plate and is fixedly connected to the top of one side of a counterweight box, and an anti-skid component is installed on one side of the counterweight box, and the anti-skid component is used to prevent the counterweight box from being disconnected and causing the counterweight box to crash into the equipment.

[0006] Optionally, a placement box is fixedly connected to the interior of the top of the protective shell, the placement box is located at the bottom of the baffle plate, and the bottom of the placement box is connected to a storage box.

[0007] Optionally, a slope plate is fixedly connected to the inside of the top of the placement box, and a counterweight block is slidably connected to the outside of the top of the pull rope. The counterweight block is located between the placement box and the baffle plate. The pull rope is made of stainless steel. When the counterweight box moves to the bottom of the protective shell, the energy storage spring is in a compressed state.

[0008] Optionally, a cylinder is fixedly connected to one side of the inner wall of the protective shell, a storage cylinder is fixedly connected to one side of the cylinder, a U-shaped plate is installed at the telescopic end of the cylinder, the interior of the U-shaped plate is rotatably connected to a Z-shaped plate through an axis, an L-shaped rod is slidably clamped at the bottom of the storage cylinder, an end of the L-shaped rod away from the storage cylinder is rotatably connected to one side of the middle part of the Z-shaped plate through an axis, a blocking bar is fixedly connected to one side of one end of the L-shaped rod, the bottom end of the storage cylinder is lower than the bottom end of the cylinder body, a positioning bar is fixedly connected to one side of the bottom of the counterweight box, and a square is installed on one side of the interior of the protective shell. A direction sensor is provided, an inductive sensor is installed at the bottom of the protective shell, the direction sensor is located at the bottom of the cylinder body, the inductive sensor is located at one side of the bottom of the chain, the output ends of the direction sensor and the inductive sensor are electrically connected to a microcontroller, the output end of the microcontroller is electrically connected to an electromagnetic reversing valve, the output end of the electromagnetic reversing valve is electrically connected to a cylinder, when the counterweight box moves to one side of the direction sensor, the cylinder pushes the Z-shaped plate to move, and when the counterweight box moves to one side of the inductive sensor, the cylinder drives the Z-shaped plate to shrink.

[0009] Optionally, the anti-slip assembly includes a fixed plate installed on one side of the counterweight box, vertical plates are fixedly connected to both sides of the bottom of the fixed plate, a connecting column is slidably connected to the inside of the middle of the fixed plate, the bottom of the connecting column passes through the inside of the fixed plate and is fixedly connected to a telescopic column, and a retaining ring is fixedly connected to the outside of the bottom end of the telescopic column.

[0010] Optionally, a positioning spring is fixedly connected to the top of the retaining ring, the positioning spring is sleeved on the outside of the bottom end of the telescopic column, and the top end of the positioning spring is fixedly connected to the bottom of the fixing plate.

[0011] Optionally, a spring sheet is fixedly connected to the bottom of the retaining ring, the bottom end of the telescopic column passes through the retaining ring and the inside of the spring sheet and is fixedly connected to a connecting block, both sides of the connecting block are rotatably connected to L-shaped plates via shafts, one end of the L-shaped plate away from the connecting block is rotatably connected to the connecting plate via the shaft, and the middle part of the L-shaped plate is rotatably connected to one side of the vertical plate via the shaft.

[0012] Optionally, a socket is provided inside the bottom of the two vertical plates, and the end of the connecting plate away from the L-shaped plate passes through the inside of the socket. Tooth plates are fixedly connected on both sides of the inside of the protective shell, and the two tooth plates are respectively provided with multiple oblique tooth grooves on one side corresponding to the counterweight box. A slope is provided at one end of the connecting plate away from the L-shaped plate, and one end of the connecting plate with the slope is engaged with the inside of the oblique tooth groove.

[0013] Optionally, a slide groove is provided on one side of the fixed plate, a limit plate is fixedly connected to one side of the counterweight box, and an end of the limit plate away from the counterweight box is slidably engaged with the interior of the slide groove.

[0014] Optionally, the interior of the arc-shaped shell is rotatably connected to a conveying roller via an axis, the exterior of the conveying roller is slidably connected to a traction belt, one end of the traction belt is fixedly connected to the top of the connecting column, one side of the counterweight box is fixedly connected to an alignment plate, and the alignment plate is located at the bottom of the connecting block.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up an energy storage component, the compression and release of the energy storage spring can be used to realize the storage and release of part of the energy, thereby reducing the load of the driving device and further reducing energy consumption. When in use, the counterweight box will pull the upper top plate downward through the pull rope, thereby prompting the upper top plate to press the energy storage spring to contract and store energy. At this time, when the sucker rod needs to move downward, the driving device will drive the counterweight box to rise. At this time, the rebound of multiple energy storage springs will reduce the force of the driving device to drive the counterweight box, thereby avoiding the problem that the driving device needs to consume a lot of energy to lift the counterweight box. At the same time, through the placement box that is set up, when the counterweight box is lifted, the pull rope will be caused by the action of the counterweight block to shrink the pull rope to the inside of the storage box for collection, thereby avoiding the problem of the pull rope affecting the lifting of the counterweight box.

[0016] By setting up an anti-slip component, the counterweight box can be effectively prevented from being disconnected or falling out of control, thereby avoiding the counterweight box crashing into the equipment and increasing the cost of repairing the equipment. At the same time, the reliability of the system operation is further improved. When the counterweight box connection is disconnected, the connecting plate relies on the spring sheet and the positioning spring to automatically rebound, causing one end of the connecting plate to be stuck in the oblique tooth groove on one side of the tooth plate, thereby causing the counterweight box to be fixed again, thereby avoiding the problem of the counterweight box suddenly falling and crashing into the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the internal part; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the arc-shaped shell of the present invention; Figure 4 This is a schematic diagram of the connection between the energy storage spring and the pull rope of the present invention; Figure 5 It is a schematic diagram of a three-dimensional structure of part of the anti-skid assembly of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 It is a schematic diagram of the side cross-sectional structure of the fixing plate of the present invention; Figure 8 For the present invention Figure 4 A schematic diagram of the cross-sectional structure from the side; Fig. 9 It is a schematic diagram of the enlarged structure of the Z-shaped plate and the alignment strip of the present invention; Fig.10 This is a schematic diagram of sensor connection of the present invention.

[0019] [Reference Signs] 1. Base; 2. Driving device; 3. Protective shell; 4. Chain; 5. Conveyor roller; 6. Traction belt; 7. Ring frame; 8. Fixed block; 9. Rotating shaft; 10. Roller; 11. Counterweight box; 12. Upper top plate; 13. Baffle plate; 14. Energy storage spring; 15. Pull rope; 16. Placement box; 17. Counterweight block; 18. Slope plate; 19. Storage box; 20. Connecting column; 21. Fixed plate; 22. Telescopic column; 23. Positioning spring; 24. Retaining ring; 25. Spring sheet; 26. Connecting block; 27. L-shaped plate; 28. Connecting plate; 29. ​​Vertical plate; 30. Plug hole; 31. Tooth plate; 32. Alignment plate; 33. Limiting plate; 34. Slide groove; 35. Arc shell; 36. Cylinder; 37. Storage tube; 38. U-shaped plate; 39. L-shaped rod; 40. Z-shaped plate; 41. Baffle bar; 42. Alignment bar.

[0020] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0021] The following is a detailed description of the weightless spring energy storage pumping unit provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0022] like Figures 1 to 10As shown, an embodiment of the present invention provides a non-counterweight spring energy storage oil pumping unit, comprising a base 1, a driving device 2 and a protective shell 3 are fixedly connected to the top of the base 1, an arc-shaped shell 35 is fixedly connected to the top of the protective shell 3, a chain 4 is rotatably connected to the inside of the protective shell 3, an output end of the driving device 2 passes through the side wall of the base 1 and is transmission-connected to one side of the bottom of the chain 4, a fixed block 8 is fixedly connected to the inside of the chain 4, an annular frame 7 is installed on one side of the fixed block 8, a rotating shaft 9 is rotatably connected to one side of the fixed block 8, rollers 10 are rotatably connected to the top and bottom of the rotating shaft 9 respectively, the rollers 10 are rotatably clamped to the inside of the square hole inside the annular frame 7, a counterweight box 11 is fixedly connected to the top of the annular frame 7, an energy storage component for reducing the load of the driving device 2 and reducing energy consumption is arranged inside the protective shell 3, and the energy storage component It includes an upper top plate 12 which is slidably connected to the top of the protective shell 3, and a baffle plate 13 is fixedly connected to the top of the protective shell 3. The baffle plate 13 is located at the bottom of the upper top plate 12, and a plurality of energy storage springs 14 and a plurality of pull ropes 15 are fixedly connected to the bottom of the upper top plate 12. The bottom end of the energy storage spring 14 is fixedly connected to the top of the baffle plate 13, and the top end of the pull rope 15 passes through the interior of the energy storage spring 14 and is fixedly connected to the bottom of the upper top plate 12. The bottom end of the pull rope 15 passes through the interior of the baffle plate 13 and is fixedly connected to the top of one side of the counterweight box 11. An auxiliary component is installed inside the counterweight box 11, and the auxiliary component is used to reduce the counterweight of the counterweight box 11 and further reduce energy consumption. An anti-skid component is installed on one side of the counterweight box 11, and the anti-skid component is used to prevent the counterweight box 11 from being disconnected and causing the counterweight box 11 to crash into the equipment; Through the energy storage component that is set up, the compression and release of the energy storage spring 14 can be utilized to realize the storage and release of part of the energy, thereby reducing the load of the driving device 2 and further reducing energy consumption. When in use, the counterweight box 11 will pull the upper top plate 12 downward through the pull rope 15, thereby prompting the upper top plate 12 to press the energy storage spring 14 to contract and store energy. At this time, when the sucker rod needs to move downward, the driving device 2 will drive the counterweight box 11 to rise. At this time, the rebound of multiple energy storage springs 14 will reduce the force of the driving device 2 to drive the counterweight box 11, thereby avoiding the problem that the driving device 2 needs to consume a lot of energy to lift the counterweight box 11. At the same time, through the placement box 16 that is set up, when the counterweight box 11 is lifted, the pull rope 15 will be caused by the action of the counterweight block 17 to shrink the pull rope 15 to the inside of the storage box 19 for collection, thereby avoiding the problem that the pull rope 15 affects the lifting of the counterweight box 11.

[0023] like Figures 1 to 8As shown, a placement box 16 is fixedly connected to the inside of the top of the protective shell 3, and the placement box 16 is located at the bottom of the baffle plate 13. The bottom of the placement box 16 is connected to a storage box 19, and a slope plate 18 is fixedly connected to the inside of the top of the placement box 16. A counterweight block 17 is slidably connected to the outside of the top of the pull rope 15, and the position of the counterweight block 17 is located between the placement box 16 and the baffle plate 13. The pull rope 15 is made of stainless steel. When the counterweight box 11 moves to the bottom of the protective shell 3, the energy storage spring 14 is in a compressed state; By means of the energy storage spring 14 and the pull rope 15, when pumping oil upward, the driving device 2 will first drive the chain 4 to rotate, and then the annular frame 7 will move downward with the counterweight box 11, and then the traction belt 6 will drive the sucker rod to pump oil upward, and at the same time, when the counterweight box 11 moves downward, it will pull the pull rope 15 to move downward, and at the same time, when the counterweight box 11 is about to move to the bottom of the protective shell 3, the top of the pull rope 15 will pull the upper top plate 12 to move downward, and at the same time, the upper top plate 12 compresses the energy storage spring 14 to shrink, and at this time, when the counterweight box 11 moves to the bottom of the protective shell 3, the energy storage spring 14 is completely in a compressed state, and at this time, when the sucker rod needs to descend again to pump oil, the driving device 2 will drive the chain 4 to move again, prompting the annular frame 7 to move upward with the counterweight box 11, and at this time, through the automatic rebound of the energy storage spring 14, the energy storage spring 14 is prompted to move upward against the upper top plate 12, and at the same time, the upper top plate 12 pulls the pull rope 15 to prompt the counterweight box 11 to The pull rope 15 is moved upward, thereby avoiding the problem that the driving device 2 needs to consume a lot of energy to lift the counterweight box 11, thereby reducing the energy loss of the driving device 2 and enabling the driving device 2 to be used for a long time. At the same time, after the counterweight box 11 moves upward for a certain distance, the energy storage spring 14 is completely in a released state. At this time, the pull rope 15 will shrink. At this time, the counterweight block 17 is set. When the pull rope 15 shrinks, the counterweight block 17 is slidably connected to the outside of the pull rope 15. At the same time, a slope plate 18 and a storage box 19 are also provided. The counterweight block 17 pulls the pull rope 15 through the counterweight sliding, and falls from the top of the slope plate 18 to the inside of the storage box 19, thereby shrinking the pull rope 15, thereby avoiding the problem that the pull rope 15 affects the movement of the counterweight box 11. At the same time, by setting the material of the pull rope 15 to stainless steel, the pull rope 15 has the characteristics of high strength, wear resistance, strong tensile strength, and is suitable for bearing a large load, thereby enabling the pull rope 15 to be used for a long time.

[0024] like Figures 1 to 10As shown, a cylinder 36 is fixedly connected to one side of the inner wall of the protective shell 3, a storage cylinder 37 is fixedly connected to one side of the cylinder 36, a U-shaped plate 38 is installed at the telescopic end of the cylinder 36, the interior of the U-shaped plate 38 is connected to a Z-shaped plate 40 by an axis rotation, an L-shaped rod 39 is slidably engaged with the bottom of the storage cylinder 37, an end of the L-shaped rod 39 away from the storage cylinder 37 is connected to one side of the middle of the Z-shaped plate 40 by an axis rotation, a stop bar 41 is fixedly connected to one side of one end of the L-shaped rod 39, the bottom end of the storage cylinder 37 is lower than the bottom end of the cylinder 36 body, a positioning bar 42 is fixedly connected to one side of the bottom of the counterweight box 11, and the protective shell A direction sensor is installed on one side of the interior of the protective shell 3, and an inductive sensor is installed at the bottom of the interior of the protective shell 3. The direction sensor is located at the bottom of the cylinder 36 body, and the inductive sensor is located on one side of the bottom of the chain 4. The output ends of the direction sensor and the inductive sensor are electrically connected to a microcontroller, and the output end of the microcontroller is electrically connected to an electromagnetic reversing valve, and the output end of the electromagnetic reversing valve is electrically connected to the cylinder 36. When the counterweight box 11 moves to one side of the direction sensor, the cylinder 36 pushes the Z-shaped plate 40 to move, and when the counterweight box 11 moves to one side of the inductive sensor, the cylinder 36 drives the Z-shaped plate 40 to shrink; By providing the cylinder 36, Z-shaped plate 40 and L-shaped rod 39, when the energy storage spring 14 is compressed, the motor does not need to independently complete the energy supply. The cylinder 36 shares part of the force of pulling the counterweight block 17. The thrust of the cylinder 36 can be provided by the external hydraulic system, and cooperates with the motor to achieve energy saving. The cylinder 36 can work through an external air source without directly providing energy from the motor. In this way, the energy source of the energy storage spring 14 compression process is dispersed and no longer completely depends on the motor. Since the energy consumption of the motor is significantly reduced, the burden of the motor during the compression of the energy storage spring 14 is reduced. Therefore, when the counterweight box 11 descends to drive the energy storage spring 14 to compress, the energy saving effect can be achieved through the cylinder 36. At the same time, since the cylinder 36 only needs to be used intermittently and does not need to provide energy for a long time, it will not consume too much energy of the cylinder 36, thereby achieving energy saving. When in use, Fig. 9 and Fig.10As shown in the figure, when the counterweight box 11 moves downward to one side of the direction sensor, the energy storage spring 14 begins to compress, and the counterweight box 11 moves to the bottom of the Z-shaped plate 40 with the alignment bar 42. At this time, the direction sensor transmits a signal to the microcontroller, and the microcontroller starts the electromagnetic reversing valve, prompting the electromagnetic reversing valve to open the cylinder 36, prompting the cylinder 36 to push the U-shaped plate 38 to move. When the U-shaped plate 38 moves downward with the Z-shaped plate 40, the blocking bar 41 is used to resist, so that the Z-shaped plate 40 and the U-shaped plate 38 are pushed. When the cylinder 36 moves the Z-shaped plate 40 downward, the Z-shaped plate 40 contacts the top of the alignment bar 42, prompting the Z-shaped plate 40 to push the alignment bar 42 downward, while the auxiliary counterweight box 11 moves downward, thereby achieving the effect of the cylinder 36 assisting the counterweight box 11 to compress the energy storage spring 14, thereby avoiding the motor from having to bear a large amount of energy. The problem of compressing the dynamic energy storage spring 14 is solved, thereby achieving the effect of energy saving. At the same time, when the counterweight box 11 moves to the bottom end of the chain 4, the energy storage spring 14 is in a fully compressed state. At this time, the induction sensor senses the counterweight box 11 and transmits a signal to the microcontroller. At the same time, the electromagnetic reversing valve is started again, prompting the cylinder 36 to pull the Z-shaped plate 40 to shrink, thereby facilitating the upward movement of the counterweight box 11. At the same time, through the height of the bottom end of the storage tube 37 and the Z-shaped plate 40, when the cylinder 36 shrinks with the Z-shaped plate 40 At the same time, the L-shaped rod 39 will shrink toward the inside of the storage tube 37. Then, because the bottom end of the storage tube 37 is lower than the cylinder 36 body, the L-shaped rod 39 will be received into the inside of the storage tube 37 first. At the same time, the U-shaped plate 38 will drive the Z-shaped plate 40 to continue to shrink. At this time, through the principle of leverage, the U-shaped plate 38 will pull one end of the Z-shaped plate 40 to tilt up, thereby causing the other end of the Z-shaped plate 40 to be misaligned with the position of the alignment bar 42, thereby avoiding the problem of the Z-shaped plate 40 blocking the movement of the alignment bar 42 when the counterweight box 11 moves upward.

[0025] like Figures 1 to 8As shown, the anti-skid assembly includes a fixed plate 21 installed on one side of the counterweight box 11, and vertical plates 29 are fixedly connected to both sides of the bottom of the fixed plate 21. A connecting column 20 is slidably connected to the interior of the middle of the fixed plate 21. The bottom of the connecting column 20 passes through the interior of the fixed plate 21 and is fixedly connected to a telescopic column 22. A retaining ring 24 is fixedly connected to the outside of the bottom end of the telescopic column 22. A positioning spring 23 is fixedly connected to the top of the retaining ring 24. The positioning spring 23 is sleeved on the outside of the bottom end of the telescopic column 22. The top of the positioning spring 23 is fixedly connected to the bottom of the fixed plate 21. A spring sheet 25 is fixedly connected to the bottom of the retaining ring 24. The bottom end of the telescopic column 22 passes through the retaining ring 24 and the inside of the spring sheet 25. A connecting block 26 is fixedly connected, and L-shaped plates 27 are rotatably connected to both sides of the connecting block 26 through an axis, and a connecting plate 28 is rotatably connected to one end of the L-shaped plate 27 away from the connecting block 26 through an axis, and the middle part of the L-shaped plate 27 is rotatably connected to one side of the vertical plate 29 through an axis, and a plug hole 30 is provided inside the bottom of the two vertical plates 29, and one end of the connecting plate 28 away from the L-shaped plate 27 passes through the inside of the plug hole 30, and tooth plates 31 are fixedly connected to both sides of the inside of the protective shell 3, and the two tooth plates 31 are respectively provided with a plurality of oblique tooth grooves corresponding to one side of the counterweight box 11, and a slope is provided at one end of the connecting plate 28 away from the L-shaped plate 27, and one end of the connecting plate 28 with the slope is engaged with the inside of the oblique tooth groove; By setting up the anti-skid component, the counterweight box 11 can be effectively prevented from being disconnected or falling out of control, thereby preventing the counterweight box 11 from crashing into the equipment, which in turn increases the cost of equipment maintenance and further improves the reliability of the system operation. When the counterweight box 11 is disconnected at the connection, the connecting plate 28 automatically rebounds by relying on the spring sheet 25 and the positioning spring 23, prompting one end of the connecting plate 28 to be stuck in the oblique tooth groove on one side of the tooth plate 31, thereby prompting the counterweight box 11 to be fixed again, thereby preventing the counterweight box 11 from suddenly falling and crashing into the equipment. When the counterweight box 11 rises, the alignment plate 32 will lift up against the connecting block 26. At this time, the connecting block 26 contracts against the spring sheet 25 and the positioning spring 23, thereby prompting the connecting block 26 to pull one end of the L-shaped plate 27 to move. At the same time, one end of the connecting plate 28 will be away from the oblique tooth groove on one side of the tooth plate 31, thereby prompting the counterweight box 1 1 can be lifted upward. At the same time, before the counterweight box 11 descends, the sucker rod uses its own gravity to pull one end of the traction belt 6. At this time, the other end of the traction belt 6 will pull the positioning spring 23 and the spring sheet 25 to move toward the bottom of the fixed plate 21, thereby prompting the L-shaped plate 27 to bring one end of the connecting plate 28 away from the inside of the oblique tooth groove on one side of the tooth plate 31, thereby prompting the counterweight box 11 to move downward. At this time, if the connection between the connecting column 20 and the traction belt 6 is disconnected, the positioning spring 23 and the spring sheet 25 will automatically rebound, prompting the positioning spring 23 and the spring sheet 25 to move downward with the retaining ring 24, and at the same time, the connecting block 26 moves downward, prompting the L-shaped plate 27 to move one end of the connecting plate 28 to the oblique tooth groove on one side of the tooth plate 31 through the lever principle, thereby prompting the fixed plate 21 to fix the position of the counterweight box 11, thereby avoiding the problem of the counterweight box 11 falling.

[0026] like Figures 1 to 7 As shown, a slide groove 34 is provided on one side of the fixed plate 21, a limit plate 33 is fixedly connected to one side of the counterweight box 11, and one end of the limit plate 33 away from the counterweight box 11 is slidably engaged with the inside of the slide groove 34, a conveying roller 5 is rotatably connected to the inside of the arc shell 35 through an axis, a traction belt 6 is slidably connected to the outside of the conveying roller 5, and one end of the traction belt 6 is fixedly connected to the top of the connecting column 20, and an alignment plate 32 is fixedly connected to one side of the counterweight box 11, and the alignment plate 32 is located at the bottom of the connecting block 26; By setting the alignment plate 32, slide groove 34 and limit plate 33, when the counterweight box 11 moves to the bottom of the protective shell 3 and rises, the counterweight box 11 first slides inside the slide groove 34 through the limit plate 33, and at the same time, the alignment plate 32 will move upward and move upward against the connecting block 26, thereby prompting the connecting block 26 to shrink upward against the spring sheet 25 and the positioning spring 23, thereby prompting the L-shaped plate 27 to use the lever principle to bring one end of the connecting plate 28 away from the inside of the oblique tooth groove on one side of the tooth plate 31, thereby prompting the counterweight box 11 to move upward, thereby avoiding the problem that the spring sheet 25 and the positioning spring 23 affect the movement of the counterweight box 11. At the same time, by setting the traction belt 6 to be connected to the connecting column 20, when the traction belt 6 is disconnected or the connection between the traction belt 6 and the connecting column 20 is disconnected, the protective component can prevent the counterweight box 11 from falling.

[0027] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A non-counterweight spring energy storage type oil pump, comprising a base (1), wherein the top of the base (1) is fixedly connected to a driving device (2) and a protective shell (3), the top of the protective shell (3) is fixedly connected to an arc shell (35), the interior of the protective shell (3) is rotatably connected to a chain (4), the output end of the driving device (2) passes through the side wall of the base (1) and is transmission-connected to one side of the bottom of the chain (4), the interior of the chain (4) is fixedly connected to a fixed block (8), one side of the fixed block (8) is installed with an annular frame (7), one side of the fixed block (8) is rotatably connected to a rotating shaft (9), the top and bottom of the rotating shaft (9) are respectively rotatably connected to rollers (10), the rollers (10) are rotatably engaged with the inside of a square hole inside the annular frame (7), the top of the annular frame (7) is fixedly connected to a counterweight box (11), characterized in that: An energy storage component for reducing the load of the driving device (2) and reducing energy consumption is arranged inside the protective shell (3), the energy storage component comprising an upper top plate (12) slidably engaged with the top of the protective shell (3), a baffle plate (13) is fixedly connected to the top of the protective shell (3), the baffle plate (13) is located at the bottom of the upper top plate (12), a plurality of energy storage springs (14) and a plurality of pull ropes (15) are fixedly connected to the bottom of the upper top plate (12), the bottom end of the energy storage spring (14) is fixedly connected to the top of the baffle plate (13), the top end of the pull rope (15) passes through the inside of the energy storage spring (14) and is fixedly connected to the bottom of the upper top plate (12), and the bottom end of the pull rope (15) passes through the inside of the baffle plate (13) and is fixedly connected to the top of one side of the counterweight box (11); An anti-skid component is installed on one side of the counterweight box (11), and the anti-skid component is used to prevent the counterweight box (11) from being disconnected and causing the counterweight box (11) to crash into equipment.

2. The weightless spring energy storage oil pumping unit according to claim 1, characterized in that: A placement box (16) is fixedly connected to the interior of the top of the protective shell (3); the placement box (16) is located at the bottom of the baffle plate (13); and the bottom of the placement box (16) is connected to a storage box (19).

3. The weightless spring energy storage oil pumping unit according to claim 2, characterized in that: The top of the placement box (16) is fixedly connected to a slope plate (18), and the top of the pull rope (15) is slidably connected to a counterweight (17). The counterweight (17) is located between the placement box (16) and the baffle plate (13). The pull rope (15) is made of stainless steel. When the counterweight box (11) moves to the bottom of the protective shell (3), the energy storage spring (14) is in a compressed state.

4. The weightless spring energy storage oil pumping unit according to claim 1, characterized in that: A cylinder (36) is fixedly connected to one side of the inner wall of the protective shell (3), a storage cylinder (37) is fixedly connected to one side of the cylinder (36), a U-shaped plate (38) is installed at the telescopic end of the cylinder (36), the interior of the U-shaped plate (38) is rotatably connected to a Z-shaped plate (40) via an axis, an L-shaped rod (39) is slidably engaged at the bottom of the storage cylinder (37), one end of the L-shaped rod (39) away from the storage cylinder (37) is rotatably connected to one side of the middle of the Z-shaped plate (40) via an axis, a stop bar (41) is fixedly connected to one side of one end of the L-shaped rod (39), the bottom end of the storage cylinder (37) is lower than the bottom end of the cylinder (36) body, and a positioning bar (42) is fixedly connected to one side of the bottom of the counterweight box (11). A direction sensor is installed on one side of the protective shell (3), and an inductive sensor is installed on the bottom of the protective shell (3). The direction sensor is located at the bottom of the cylinder (36) body, and the inductive sensor is located on one side of the bottom of the chain (4). The output ends of the direction sensor and the inductive sensor are electrically connected to a microcontroller, and the output end of the microcontroller is electrically connected to an electromagnetic reversing valve. The output end of the electromagnetic reversing valve is electrically connected to the cylinder (36). When the counterweight box (11) moves to one side of the direction sensor, the cylinder (36) pushes the Z-shaped plate (40) to move, and when the counterweight box (11) moves to one side of the inductive sensor, the cylinder (36) drives the Z-shaped plate (40) to retract.

5. The weightless spring energy storage oil pumping unit according to claim 1, characterized in that: The anti-skid assembly comprises a fixed plate (21) mounted on one side of the counterweight box (11), vertical plates (29) are fixedly connected to both sides of the bottom of the fixed plate (21), a connecting column (20) is slidably connected to the interior of the middle of the fixed plate (21), a telescopic column (22) is fixedly connected to the bottom of the connecting column (20) passing through the interior of the fixed plate (21), and a retaining ring (24) is fixedly connected to the outside of the bottom end of the telescopic column (22).

6. The weightless spring energy storage oil pumping unit according to claim 5, characterized in that: A positioning spring (23) is fixedly connected to the top of the retaining ring (24), the positioning spring (23) is sleeved outside the bottom end of the telescopic column (22), and the top end of the positioning spring (23) is fixedly connected to the bottom of the fixing plate (21).

7. The weightless spring energy storage oil pumping unit according to claim 6, characterized in that: The bottom of the retaining ring (24) is fixedly connected to a spring sheet (25); the bottom end of the telescopic column (22) penetrates the retaining ring (24) and the inside of the spring sheet (25) and is fixedly connected to a connecting block (26); both sides of the connecting block (26) are rotatably connected to L-shaped plates (27) via shafts; one end of the L-shaped plate (27) away from the connecting block (26) is rotatably connected to a connecting plate (28) via a shaft; and the middle part of the L-shaped plate (27) is rotatably connected to one side of a vertical plate (29) via a shaft.

8. The weightless spring energy storage oil pumping unit according to claim 7, characterized in that: A plug hole (30) is provided inside the bottom of the two vertical plates (29); one end of the connecting plate (28) away from the L-shaped plate (27) passes through the inside of the plug hole (30); tooth plates (31) are fixedly connected to the two sides of the inside of the protective shell (3); the two tooth plates (31) are provided with a plurality of oblique tooth grooves corresponding to one side of the counterweight box (11); one end of the connecting plate (28) away from the L-shaped plate (27) is provided with a slope; and one end of the connecting plate (28) with the slope is engaged with the inside of the oblique tooth groove.

9. The weightless spring energy storage oil pumping unit according to claim 8, characterized in that: A slide groove (34) is provided on one side of the fixed plate (21), a limit plate (33) is fixedly connected to one side of the counterweight box (11), and an end of the limit plate (33) away from the counterweight box (11) is slidably engaged with the inside of the slide groove (34).

10. The weightless spring energy storage oil pumping unit according to claim 6, characterized in that: The interior of the arc-shaped shell (35) is rotatably connected to a conveying roller (5) via an axis, the exterior of the conveying roller (5) is slidably connected to a traction belt (6), one end of the traction belt (6) is fixedly connected to the top of the connecting column (20), and one side of the counterweight box (11) is fixedly connected to an alignment plate (32), the alignment plate (32) being located at the bottom of the connecting block (26).

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