Oil pumping machine for recycling waste cars with improved oil liquid recovery efficiency
By combining a double-crankshaft piston rod design with a filter plate filtration assembly, the problems of low efficiency and incomplete impurity removal in existing oil pumping units have been solved, enabling uninterrupted oil pumping and automated control, and improving oil recovery efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAOMING TIANBAO RECYCLING RESOURCES DEVELOPMENT CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-02
AI Technical Summary
Existing oil pumps used for recycling scrap cars suffer from low efficiency, incomplete impurity removal, poor oil quality, and inaccurate level monitoring, resulting in low recycling efficiency and environmental pollution risks.
The system employs a double crankshaft piston rod design to achieve uninterrupted oil pumping, is equipped with a filter plate to filter impurities, and uses a liquid level monitoring component to achieve automated control, ensuring oil quality and safety.
It enables uninterrupted oil pumping operations, improves oil recovery efficiency, ensures oil quality, and reduces manual intervention through automated control, thereby enhancing operational accuracy and safety.
Smart Images

Figure CN224315110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste automotive oil recycling technology, specifically to an oil pump for waste automotive recycling that improves oil recycling efficiency. Background Technology
[0002] In the field of end-of-life vehicle recycling, oil recovery is a crucial step. However, existing oil extraction machines used in end-of-life vehicle recycling face numerous problems in practical applications, severely restricting recycling efficiency and quality.
[0003] From a recovery efficiency perspective, traditional oil pumping units typically employ a single piston structure for oil extraction. During the extraction process, the piston needs to perform two alternating actions: oil suction and oil discharge. This means that when the piston is suctioning oil, the discharge action must be paused, and vice versa. This intermittent operation prevents continuous extraction, resulting in significant time waste and greatly reducing oil recovery efficiency. Regarding oil quality assurance, existing oil pumping units generally lack effective filtration devices. When extracting oil from scrap vehicles, various impurities such as metal fragments, sludge, and moisture are often present. If these impurities directly enter the recovered oil, they not only affect the oil's quality and reduce its reuse value but also increase the difficulty and cost of subsequent processing. Furthermore, during the extraction process, operators cannot accurately monitor the oil level in the collection container in real time. When the oil in the oil collection container is close to overflowing, due to the lack of effective monitoring methods, operators cannot know in time and take measures to stop pumping oil, which leads to oil overflow. This not only wastes oil but may also pollute the surrounding environment and increase the workload of cleaning and maintenance. Utility Model Content
[0004] The purpose of this invention is to provide an oil extraction machine for recycling used cars that improves oil recovery efficiency. It enables continuous oil extraction, significantly increasing oil recovery efficiency. The extracted oil undergoes preliminary filtration through a filter plate, effectively removing impurities and preventing excessive impurities from directly entering the oil collection tank, thus reducing subsequent secondary processing steps.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an oil pump for recycling waste automobiles to improve oil recovery efficiency, comprising an oil collection tank, an oil discharge pipe at the bottom of the oil collection tank, a rotatable inspection door on the oil collection tank, and a control device on the outside of the oil collection tank. The oil collection tank is located at the top of the base, and an oil pumping assembly is located at the top of the oil collection tank.
[0006] The bottom of the oil collection drum is fixed with a base, and the bottom of the base is equipped with casters.
[0007] The oil extraction assembly includes a pump housing located at the top of the oil collection tank. The pump housing has two cavities, each containing a piston rod. Each cavity has an oil outlet and an oil inlet, and the oil inlet is connected to an oil extraction pipe. The oil outlet is used to discharge oil into the oil collection tank.
[0008] Preferably, the oil extraction assembly includes a drive motor disposed at the top of the oil collection tank, and a double crankshaft is drivenly connected to the output shaft of the drive motor, with two sets of piston rods respectively connected to the double crankshaft.
[0009] Preferably, a connecting pipe is fixed to the side of the oil extraction pipe away from the pump casing, and an oil extraction head is provided outside the connecting pipe.
[0010] Preferably, the oil collection tank is provided with an adjusting filter assembly for filtering the extracted oil. The adjusting filter assembly includes a filter plate disposed in the oil collection tank, a first insertion block disposed outside the filter plate, and a second insertion block slidably disposed in the filter plate. The oil collection tank has insertion holes for the first insertion block and the second insertion block to be inserted into each other.
[0011] Preferably, a toggle plate is fixed to the top of the second plug block, and a first spring is provided inside the filter plate.
[0012] Preferably, one end of the first spring is fixedly connected to the second plug block.
[0013] Preferably, the oil collection tank is equipped with a liquid level monitoring component for monitoring the liquid level of the collected oil. The liquid level monitoring component includes a groove formed on the inner wall of the oil collection tank, a float ball slidably disposed in the groove, the float ball being located at the top of the filter plate, and a connecting rod being fixed to the top of the float ball, and a movable disc being fixed to the top of the connecting rod.
[0014] Preferably, the liquid level monitoring component includes a guide frame disposed at the top of the oil collection tank, the movable disc is slidably disposed in the guide frame, and a limit switch is disposed at the top of the guide frame, the limit switch being signal-connected to the control device.
[0015] Compared with the prior art, this utility model provides an oil pump for recycling waste automobiles that improves oil recovery efficiency, and has the following beneficial effects:
[0016] 1. This oil extraction pump for recycling scrap automobiles, designed to improve oil recovery efficiency, works by starting the drive motor. A double crankshaft drives two piston rods to move within two cavities of the pump housing. Utilizing the positional difference between the oil outlet and the extraction pipe, one cavity draws oil while the other discharges it. Through the coordinated action of the extraction pipe, connecting pipe, and extraction head, continuous oil extraction is achieved, significantly improving oil recovery efficiency. The extracted oil is then transported to the collection tank and undergoes preliminary filtration through a filter plate. This effectively removes impurities, preventing excessive impurities from directly entering the collection tank and reducing subsequent secondary processing steps, further improving the quality of the recovered oil. These two aspects work together to ensure both rapid recovery and high-quality recovered oil, providing a better foundation for subsequent utilization.
[0017] 2. This oil extraction machine for recycling scrap automobiles, which improves oil recovery efficiency, automatically stops the drive motor and ends the single extraction operation as the oil level in the collection tank gradually rises during the extraction process. This achieves automated control of the extraction process, reduces manual intervention, and improves operational accuracy and safety. After draining the oil from the collection tank, the inspection door can be opened to quickly disassemble and assemble the filter plates, facilitating cleaning and replacement and ensuring the long-term stable operation of the device. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a three-dimensional structure of an oil pump for recycling used cars to improve oil recovery efficiency, according to the present invention. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of a three-dimensional structure of an oil pump for recycling used cars to improve oil recovery efficiency, according to the present invention. Figure 2 ;
[0020] Figure 3 This is a partial three-dimensional structural diagram of an oil pump for recycling scrap automobiles to improve oil recovery efficiency according to this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the regulating filter component in an oil pumping unit for recycling used cars to improve oil recovery efficiency, according to the present invention.
[0022] Figure 5 This is a schematic diagram showing the disassembly structure of the regulating filter component in an oil pump for recycling used cars to improve oil recovery efficiency, according to this utility model.
[0023] Figure 6 This is a schematic diagram showing the disassembled structure of the oil pumping component in an oil pumping unit for recycling used cars to improve oil recovery efficiency according to this utility model.
[0024] Figure 7 This is a schematic diagram showing the disassembled structure of the liquid level monitoring component in an oil pumping unit for recycling used cars to improve oil recovery efficiency, according to the present invention.
[0025] In the diagram: 1. Base; 2. Casters; 3. Oil collection tank; 31. Oil drain pipe; 32. Inspection door; 33. Control equipment; 4. Adjustable filter assembly; 41. Filter plate; 42. First plug-in block; 43. Second plug-in block; 44. Plug-in hole; 45. Actuating plate; 46. First spring; 5. Oil extraction assembly; 51. Pump housing; 52. Drive motor; 53. Double crankshaft; 54. Piston rod; 55. Oil extraction pipe; 56. Connecting pipe; 57. Oil extraction head; 6. Liquid level monitoring assembly; 61. Slide groove; 62. Float; 63. Connecting rod; 64. Movable plate; 65. Guide frame; 66. Limit switch. Detailed Implementation
[0026] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0027] Example 1: Please refer to Figures 1-6 This utility model provides a technical solution: an oil extraction machine for recycling scrap automobiles to improve oil recovery efficiency, including an oil collection tank 3, an oil discharge pipe 31 at the bottom of the oil collection tank 3, a rotatable inspection door 32 on the oil collection tank 3, and a control device 33 on the outside of the oil collection tank 3. The oil collection tank 3 is located at the top of a base 1, and an oil extraction assembly 5 is located at the top of the oil collection tank 3. The control device 33 enables automated operation, reduces manual intervention, and improves work efficiency.
[0028] The bottom of the oil collection tank 3 is fixed with a base 1, and the bottom of the base 1 is equipped with casters 2.
[0029] The oil extraction assembly 5 includes a pump housing 51 located at the top of the oil collection tank 3. The pump housing 51 has two cavities, each containing a movable piston rod 54. Each cavity has an oil outlet and an oil inlet, with an oil extraction pipe 55 connected to the inlet for oil extraction. The outlet discharges oil into the oil collection tank 3. This design of two cavities and the piston rod 54 utilizes a double-acting principle to achieve continuous oil extraction, improving extraction efficiency. It also ensures that the extracted oil smoothly enters the oil collection tank 3, guaranteeing a smooth recovery process.
[0030] Furthermore, the oil extraction assembly 5 includes a drive motor 52 mounted at the top of the oil collection tank 3. A double crankshaft 53 is driven and connected to the output shaft of the drive motor 52, and two sets of piston rods 54 are respectively connected to the double crankshaft 53. The drive motor 52 provides power for oil extraction, and the design of the double crankshaft 53 enables the two piston rods 54 to move synchronously and in a coordinated manner, ensuring the stability and continuity of oil extraction and improving oil extraction efficiency.
[0031] Furthermore, a connecting pipe 56 is fixed to the side of the oil extraction pipe 55 away from the pump housing 51, and an oil extraction head 57 is installed outside the connecting pipe 56. The design of the connecting pipe 56 and the oil extraction head 57 makes the oil extraction operation more flexible and precise, better adaptable to the location and extraction needs of different waste automotive oils, and improves the success rate and efficiency of oil extraction.
[0032] Furthermore, the oil collection tank 3 is equipped with an adjustable filter assembly 4 for filtering the extracted oil. The adjustable filter assembly 4 includes a filter plate 41 disposed in the oil collection tank 3, a first insertion block 42 disposed outside the filter plate 41, and a second insertion block 43 slidably disposed within the filter plate 41. The oil collection tank 3 has insertion holes 44 for the first insertion block 42 and the second insertion block 43 to be inserted into each other. The filter plate 41 can effectively filter impurities in the extracted oil, improving the quality of the recovered oil; the insertion-type installation method facilitates the disassembly and replacement of the filter plate 41, making maintenance and upkeep convenient.
[0033] Furthermore, a toggle plate 45 is fixed to the top of the second plug-in block 43, and a first spring 46 is provided inside the filter plate 41. The design of the toggle plate 45 makes it convenient for the operator to manually control the sliding of the second plug-in block 43, which facilitates the installation and disassembly of the filter plate 41; the first spring 46 makes the second plug-in block 43 elastic, which can better cooperate with the plug-in hole 44, ensuring the stability and reliability of the plug-in.
[0034] Furthermore, one end of the first spring 46 is fixedly connected to the second insertion block 43. This ensures the effective action of the first spring 46 on the second insertion block 43, enabling the second insertion block 43 to work stably during insertion and removal, and improving the convenience and reliability of installing and disassembling the filter plate 41.
[0035] Example 2: Please refer to Figure 7 Furthermore, in conjunction with Embodiment 1, the oil collection tank 3 is equipped with a level monitoring component 6 for monitoring the level of the collected oil. The level monitoring component 6 includes a groove 61 formed on the inner wall of the oil collection tank 3. A float 62 is slidably disposed in the groove 61, located at the top of the filter plate 41. A connecting rod 63 is fixed to the top of the float 62, and a movable disc 64 is fixed to the top of the connecting rod 63. The float 62 slides as the oil level rises and falls. The connecting rod 63 and the movable disc 64 transmit the movement of the float 62, providing a basis for subsequent level monitoring and alarm functions, and can reflect the oil level in the oil collection tank 3 in real time.
[0036] Furthermore, the liquid level monitoring component 6 includes a guide frame 65 mounted on top of the oil receiving tank 3, a movable disc 64 slidably mounted within the guide frame 65, and a limit switch 66 mounted on top of the guide frame 65. The limit switch 66 is signal-connected to the control device 33. When the oil level rises and causes the movable disc 64 to contact the limit switch 66, the limit switch 66 transmits a signal to the control device 33, enabling automated liquid level monitoring and alarm, timely stopping of oil pumping, preventing oil overflow, and improving the safety and reliability of the equipment.
[0037] In actual operation, when it is necessary to extract and recycle oil from scrapped vehicles, the oil pump can first be moved to the designated location using the casters 2. Then, the drive motor 52 is started via the control device 33, driving the double crankshaft 53 to rotate, thereby driving the two piston rods 54 to move within the two cavities of the pump housing 51. During a single rotation of the drive motor 52, the two piston rods 54 move in the same direction, but the difference in position between the oil outlet and the oil extraction pipe causes one cavity to perform the oil extraction action while the other cavity completes the oil discharge operation. This cycle repeats continuously, achieving uninterrupted oil extraction through the coordinated action of the oil extraction pipe 55, connecting pipe 56, and oil extraction head 57, thus improving recovery efficiency.
[0038] The extracted oil is transported to the oil collection tank 3. After preliminary filtration by the filter plate 41, impurities are removed, preventing excessive impurities from directly entering the oil collection tank 3, reducing subsequent secondary processing steps, and further improving the quality of oil recovery. As the oil extraction continues, the oil level in the oil collection tank 3 gradually rises. The float 62 slides upwards along the chute 61 under the influence of the oil, causing the connecting rod 63 to float upwards, and the movable disc 64 slides within the guide frame 65. When the movable disc 64 contacts the limit switch 66 at the top of the guide frame 65, the limit switch 66 transmits a signal to the control device 33, indicating that the oil level in the oil collection tank 3 has reached its limit. At this point, the control device 33 stops the drive motor 52, ending the single oil extraction operation.
[0039] Then, the drain pipe 31 can be opened to drain the oil from the oil collection tank 3. After draining, the inspection door 32 is opened, and the actuating plate 45 is pulled to slide the second insertion block 43 in the filter plate 41, disengaging it from the insertion hole 44. Then, the first insertion block 42 is separated from the insertion hole 44, and the filter plate 41 is removed. The impurities accumulated at the top of the filter plate 41 are then collected and processed. After processing, the first insertion block 42 is inserted into the insertion hole 44, and then the actuating plate 45 is pulled to align the second insertion block 43 with the insertion hole 44. After releasing the actuating plate 45, under the rebound action of the first spring 46, the second insertion block 43 is inserted into the insertion hole 44, completing the rapid assembly of the filter plate 41.
[0040] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. An oil pump for recycling scrap automobiles to improve oil recovery efficiency, comprising an oil collection tank (3), characterized in that: The bottom of the oil collection tank (3) is provided with an oil drain pipe (31), the oil collection tank (3) is rotatably provided with an inspection door (32), and the outside of the oil collection tank (3) is provided with a control device (33). The top of the oil collection tank (3) is provided with an oil extraction assembly (5). The oil extraction assembly (5) includes a pump housing (51) provided at the top of the oil collection tank (3). The pump housing (51) has two cavities, and a piston rod (54) is movably provided in each cavity. Each cavity has an oil outlet and an oil inlet, and an oil extraction pipe (55) for oil extraction is connected to the outside of the oil inlet. The oil outlet is used to discharge oil into the oil collection tank (3).
2. The oil pump for recycling used automobiles to improve oil recovery efficiency according to claim 1, characterized in that: The oil extraction assembly (5) includes a drive motor (52) located at the top of the oil collection tank (3). A double crankshaft (53) is connected to the output shaft of the drive motor (52), and two sets of piston rods (54) are respectively connected to the double crankshaft (53).
3. The oil pump for recycling used automobiles to improve oil recovery efficiency according to claim 1, characterized in that: A connecting pipe (56) is fixed on the side of the oil extraction pipe (55) away from the pump housing (51), and an oil extraction head (57) is provided outside the connecting pipe (56).
4. The oil pump for recycling scrap automobiles to improve oil recovery efficiency according to claim 1, characterized in that: The oil collection tank (3) is equipped with an adjustable filter assembly (4) for filtering the extracted oil. The adjustable filter assembly (4) includes a filter plate (41) disposed in the oil collection tank (3). A first plug-in block (42) is disposed outside the filter plate (41). A second plug-in block (43) is also slidably disposed in the filter plate (41). The oil collection tank (3) is provided with a plug-in hole (44) for the first plug-in block (42) and the second plug-in block (43) to be plugged in.
5. The oil pump for recycling scrap automobiles according to claim 4, characterized in that: The top of the second plug block (43) is fixed with a toggle plate (45), and a first spring (46) is provided inside the filter plate (41).
6. The oil pump for recycling scrap automobiles according to claim 5, characterized in that: One end of the first spring (46) is fixedly connected to the second plug block (43).
7. The oil pump for recycling used automobiles to improve oil recovery efficiency according to claim 1, characterized in that: The oil collection tank (3) is equipped with a liquid level monitoring component (6) for monitoring the liquid level of the collected oil. The liquid level monitoring component (6) includes a chute (61) opened on the inner wall of the oil collection tank (3). A float (62) is slidably arranged in the chute (61). The float (62) is located at the top of the filter plate (41), and a connecting rod (63) is fixed at the top of the float (62). A movable plate (64) is fixed at the top of the connecting rod (63).
8. The oil pump for recycling scrap automobiles according to claim 7, characterized in that: The liquid level monitoring component (6) includes a guide frame (65) set at the top of the oil receiving tank (3), the movable plate (64) is slidably set in the guide frame (65), and a limit switch (66) is set at the top of the guide frame (65), the limit switch (66) is signal connected to the control device (33).