High-efficiency anti-blocking and easy-to-clean hydraulic pump
By introducing fan cooling and filter screen filtration into the hydraulic pump, combined with a detachable pin and clamp design, the problem of insufficient heat dissipation of the hydraulic pump is solved, achieving efficient anti-clogging and convenient cleaning, and improving the operational stability and maintenance efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHIAO TONG UNIV QILIGER HIGH TECH (DALIAN) CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-21
Smart Images

Figure CN224532905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic pumps, and in particular to a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump. Background Technology
[0002] Hydraulic pumps are hydraulic power devices that reduce impurity accumulation and facilitate quick cleaning by optimizing internal flow channel design, equipping automatic filtering devices, and detachable structures. Their core function is to stably output hydraulic energy to drive the hydraulic system, while reducing the risk of downtime due to blockages, improving equipment operating efficiency and maintenance convenience. They are mainly used in engineering machinery, agricultural machinery, mining equipment, and other scenarios where hydraulic systems are prone to sucking in impurities or where there are high requirements for continuous operation and maintenance efficiency.
[0003] In traditional technologies, if a hydraulic pump lacks a cooling system, the heat generated during operation cannot be dissipated in time, causing the pump body and hydraulic oil temperature to rise continuously. This leads to several problems: firstly, it causes a decrease in hydraulic oil viscosity, weakens sealing performance, and leads to leakage; secondly, it accelerates oil oxidation, shortens service life, and may also cause more impurities due to oil deterioration, indirectly weakening its anti-clogging function; thirdly, high temperatures affect the mechanical properties of internal pump components, such as bearings and gears, which are prone to accelerated wear and reduced precision due to overheating, resulting in decreased pump efficiency. Therefore, a highly efficient, anti-clogging, and easy-to-clean hydraulic pump is proposed to solve these problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump, aiming to improve the problem of the device's inability to dissipate heat.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump, comprising a base, a pump housing fixedly connected to the top of the base, a drive motor fixedly connected to the top of the pump housing, a hydraulic pump fixedly connected to the output end of the drive motor, an oil inlet pipe provided on the right side of the hydraulic pump, an oil outlet pipe provided on the right side of the hydraulic pump, clamps provided on the outside of both the oil inlet pipe and the oil outlet pipe, a threaded rod threadedly connected to the outside of the clamps, a handle fixedly connected to the top of the threaded rod, a disc rotatably connected to the outside of the threaded rod, filter bags provided inside both the oil inlet pipe and the oil outlet pipe, and pins slidably connected to the front and rear sides of both the oil inlet pipe and the oil outlet pipe.
[0006] As a further description of the above technical solution:
[0007] A spring is fitted around the outside of the pin, and a protective sleeve is provided around the spring. A pull rod is fixedly connected to the rear side of the pin. A second baffle is slidably connected to the outside of the pin, and a first baffle is fixedly connected to the outside of the pin.
[0008] As a further description of the above technical solution:
[0009] The pump casing has multiple slots inside, and two fans are installed inside the pump casing. Filter screens are fixedly connected inside the slots.
[0010] As a further description of the above technical solution:
[0011] The rear side of the protective sleeve is fixedly connected to the front side of the first baffle, and the outer side of the second baffle is slidably connected to the inside of the protective sleeve.
[0012] As a further description of the above technical solution:
[0013] The rear side of the spring is fixedly connected to the front side of the first baffle, and the front side of the spring is fixedly connected to the rear side of the second baffle.
[0014] As a further description of the above technical solution:
[0015] The opposite sides of the two protective sleeves are fixedly connected to the outside of the oil inlet pipe, and the opposite sides of the two protective sleeves are fixedly connected to the outside of the oil outlet pipe.
[0016] As a further description of the above technical solution:
[0017] The clamp is internally fixedly connected to the outside of the disc, and the pump housing is internally fixedly connected to the outside of the hydraulic pump.
[0018] As a further description of the above technical solution:
[0019] The inside of the pump housing is fixedly connected to the outside of the oil inlet pipe, and the inside of the pump housing is fixedly connected to the outside of the oil outlet pipe.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, a fan inside the pump casing blows the heat generated during operation out through the slots, and a filter screen prevents dust and other impurities from entering the device. This achieves cooling of the device during operation.
[0022] 2. In this utility model, the filter bag is fixed to the oil inlet pipe and the oil outlet pipe by a pin, which makes it easier to remove the filter bag. The clamp can make the pipe opening more securely connected to other pipe openings, avoiding liquid leakage during use, and making the device more convenient and quick to clean. Attached Figure Description
[0023] Figure 1 A perspective view of a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump proposed in this utility model;
[0024] Figure 2 A schematic diagram of the fan structure of a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the structure of a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump proposed in this utility model;
[0026] Figure 4 This is a schematic diagram of the structure of a clamp for a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the pin structure of a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump proposed in this utility model.
[0028] Legend:
[0029] 1. Base; 2. Pump housing; 3. Drive motor; 4. Filter screen; 5. Oil inlet pipe; 6. Oil outlet pipe; 7. Clamp; 8. Fan; 9. Hydraulic pump; 10. Filter bag; 11. Threaded rod; 12. Disc; 13. Handle; 14. Pin; 15. Pull rod; 16. Baffle one; 17. Protective sleeve; 18. Baffle two; 19. Spring; 20. Slot. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1-3This utility model provides an embodiment of a high-efficiency, anti-clogging, and easy-to-clean hydraulic pump, comprising a base 1 as the basic support structure for the entire hydraulic pump 9. A pump housing 2 is fixedly connected to the top of the base 1, also serving as the basic support structure for the entire hydraulic pump 9. A drive motor 3 is fixedly connected to the top of the pump housing 2 as a power source, transmitting rotational power to the hydraulic pump 9. The output end of the drive motor 3 is fixedly connected to the hydraulic pump 9. An oil inlet pipe 5 and an oil outlet pipe 6 are provided on the right side of the hydraulic pump 9, forming a circulation channel for hydraulic oil. The oil inlet pipe 5 introduces hydraulic oil from the oil tank into the pump body, and the oil outlet pipe 6 delivers the pressurized hydraulic oil to the working system. Clamps 7 are provided on the outside of both the oil inlet pipe 5 and the oil outlet pipe 6. Through the cooperation of a threaded rod 11 and a disc 12, radial clamping force is achieved at the pipe connection points. The split-type structure design facilitates on-site installation and disassembly, ensures no deformation under high-pressure conditions, and effectively prevents leakage at pipe connections. The clamp 7 has an external threaded connection to a threaded rod 11, and a handle 13 is fixedly connected to the top of the threaded rod 11, forming a manual adjustment mechanism. Rotating the handle 13 drives the threaded rod 11 to move axially, and the clamping force is maintained by the self-locking characteristic of the threaded pair. A disc 12 is rotatably connected to the outside of the threaded rod 11. Filter bags 10 are installed inside the oil inlet pipe 5 and the oil outlet pipe 6 to effectively prevent impurities from entering the pump body and protect precision components such as gear pairs and bearings. The detachable design facilitates regular cleaning or replacement. Pins 14 are slidably connected to both the front and rear sides of the oil inlet pipe 5 and the oil outlet pipe 6, and the filter bags 10 are fixed in the pipes by the pre-tightening force of the spring 19. The front conical surface design facilitates quick insertion into the positioning hole, and the rear annular groove cooperates with the pull ring, making it convenient for the operator to manually pull out the pins 14.
[0032] Reference Figure 5 A spring 19 is fitted around the outside of the pin 14. This spring 19 is a compression spring, and its function is to generate a continuous forward thrust through its own elastic deformation, ensuring that the pin 14 can be stably engaged in the corresponding slot 20 when not in operation. A protective sleeve 17 is provided on the outside of the spring 19 to prevent the spring 19 from directly contacting the outer wall of the oil inlet pipe 5 and the oil outlet pipe 6 and causing wear. A pull rod 15 is fixedly connected to the rear side of the pin 14. The pull rod 15 is designed as a rod structure that is easy to hold. The operator can move the pin 14 backward by pulling the pull rod 15. A second baffle 18 is slidably connected to the outside of the pin 14, and a first baffle 16 is fixedly connected to the outside of the pin 14. The first baffle 16 and the second baffle 18 together compress the spring 19.
[0033] Reference Figure 2 and Figure 2The pump housing 2 has multiple slots 20 inside, which serve as heat dissipation channels and provide a path for air circulation inside the pump body. Two fans 8 are installed inside the pump housing 2 to exhaust the heat generated by the operation of the hydraulic pump 9 and drive motor 3 through the slots 20, while simultaneously drawing in external cold air to form convection, which significantly improves heat dissipation efficiency. A filter screen 4 is fixedly connected inside the slots 20, which can block dust, debris, fibers and other impurities from the external environment from entering the pump housing 2 through the slots 20, preventing impurities from adhering to the blades of the fan 8 and the surface of the hydraulic pump 9 components, affecting their operating accuracy or causing blockage.
[0034] Reference Figure 5 The rear side of the protective sleeve 17 is fixedly connected to the front side of the baffle 16, and the outer side of the baffle 2 18 is slidably connected to the inside of the protective sleeve 17, providing a stable closed space for the internal spring 19 and preventing the spring 19 from dislodging from its working position due to lateral displacement during extension and retraction.
[0035] Reference Figure 5 The rear side of spring 19 is fixedly connected to the front side of baffle 16, and the front side of spring 19 is fixedly connected to the rear side of baffle 2 18. When the operator pulls the lever 15 to move the pin 14 backward, baffle 16 moves backward synchronously with the pin 14. At this time, spring 19 is compressed due to the shortened distance between baffle 16 and baffle 2 18, converting the external force into elastic potential energy and storing it. When the lever 15 is released, spring 19 releases elastic potential energy, which pushes baffle 16 forward and drives the pin 14 to automatically reset, ensuring that the pin 14 can accurately engage with the corresponding slot 20 to fix the filter bag 10.
[0036] Reference Figure 1 and Figure 4 The opposite sides of the two protective sleeves 17 are fixedly connected to the outside of the oil inlet pipe 5, and the opposite sides of the two protective sleeves 17 are fixedly connected to the outside of the oil outlet pipe 6. This fixing method ensures the stability of the connection between the protective sleeves 17 and the pipes, so that they will not loosen or shift due to vibration, fluid impact or external collision during the operation of the hydraulic pump 9.
[0037] Reference Figure 1 and Figure 4 The clamp 7 is internally fixedly connected to the outside of the disc 12. When the handle 13 is turned to drive the threaded rod 11 to rotate, the disc 12 can drive the clamp 7 to produce radial tightening or loosening action by means of the rotation of the threaded rod 11, thereby accurately controlling the clamping force on the connection part of the oil inlet pipe 5 and the oil outlet pipe 6. The pump housing 2 is internally fixedly connected to the outside of the hydraulic pump 9, which ensures the stability of hydraulic energy conversion and provides comprehensive protection for the hydraulic pump 9 through the pump housing 2.
[0038] Reference Figure 1 and Figure 3The pump housing 2 is fixedly connected to the outside of the oil inlet pipe 5, and the pump housing 2 is fixedly connected to the outside of the oil outlet pipe 6. The fixed connection between the pump housing 2 and the pipeline provides a stable support for the oil inlet pipe 5 and the oil outlet pipe 6, and avoids the pipeline from shaking due to vibration or fluid impact when the hydraulic pump 9 is running.
[0039] Working principle: When the hydraulic pump 9 starts running, the drive motor 3 provides power to drive the pump body to rotate. The hydraulic oil is drawn into the pump housing 2 through the oil inlet pipe 5, and after being pressurized by the hydraulic pump 9, it is output from the oil outlet pipe 6, thus completing the conversion and transmission of hydraulic energy. During this process, the oil inlet pipe 5 and the oil outlet pipe 6 are symmetrically fixed to the outer wall by the protective sleeve 17, which provides stable support for the internal pin 14 assembly. When it is necessary to install or replace the filter bag 10, the operator pulls the lever 15, which moves the baffle 16 backward. At this time, the spring 19 fixed on the front side of the baffle 16 is compressed because the position of the baffle 2 18 is relatively fixed. The baffle 2 18 is connected to the pin 14 and is limited by the filter bag 10 mounting groove. The pin 14 moves backward synchronously with the baffle 16 and disengages from the positioning hole of the filter bag 10, so the filter bag 10 can be easily removed. After the lever 15 is released, the spring 19 releases its elastic potential energy and pushes the baffle 16 forward to reset. The pin 14 is reinserted into the positioning hole of the filter bag 10 under the sliding guidance of the baffle 2 18 and the protective sleeve 17, so as to achieve rapid fixation of the filter bag 10, effectively prevent the filter bag 10 from shifting under the impact of oil, and ensure the filtration effect. Meanwhile, the connection between the oil inlet pipe 5 and the oil outlet pipe 6 is sealed and fastened through the cooperation of the disc 12 and the clamp 7: rotating the handle 13 drives the threaded rod 11 to rotate, which drives the disc 12 to move axially, so that the clamp 7 is radially tightened and tightly fits the outer wall of the pipe to prevent oil leakage; the pump housing 2 forms a closed working cavity through the fixed connection with the hydraulic pump 9, the oil inlet pipe 5, and the oil outlet pipe 6, which not only provides protection for the internal components, but also reduces the impact of vibration through structural rigidity. Combined with the filtering effect of the filter bag 10 on the oil, the device ultimately achieves efficient, stable and easy-to-maintain operation.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency, anti-clogging, and easy-to-clean hydraulic pump, comprising a base (1), characterized in that: A pump housing (2) is fixedly connected to the top of the base (1), a drive motor (3) is fixedly connected to the top of the pump housing (2), a hydraulic pump (9) is fixedly connected to the output end of the drive motor (3), an oil inlet pipe (5) is provided on the right side of the hydraulic pump (9), an oil outlet pipe (6) is provided on the right side of the hydraulic pump (9), a clamp (7) is provided on the outside of the oil inlet pipe (5) and the oil outlet pipe (6), a threaded rod (11) is threadedly connected to the outside of the clamp (7), a handle (13) is fixedly connected to the top of the threaded rod (11), a disc (12) is rotatably connected to the outside of the threaded rod (11), a filter bag (10) is provided inside the oil inlet pipe (5) and the oil outlet pipe (6), and pins (14) are slidably connected to the front and rear sides of the oil inlet pipe (5) and the oil outlet pipe (6).
2. The high-efficiency, anti-clogging, and easy-to-clean hydraulic pump according to claim 1, characterized in that: A spring (19) is sleeved on the outside of the pin (14), a protective sleeve (17) is provided on the outside of the spring (19), a pull rod (15) is fixedly connected to the rear side of the pin (14), a second baffle (18) is slidably connected to the outside of the pin (14), and a first baffle (16) is fixedly connected to the outside of the pin (14).
3. The high-efficiency, anti-clogging, and easy-to-clean hydraulic pump according to claim 1, characterized in that: The pump housing (2) has multiple slots (20) inside, and two fans (8) are installed inside the pump housing (2). A filter screen (4) is fixedly connected inside the slots (20).
4. The high-efficiency, anti-clogging, and easy-to-clean hydraulic pump according to claim 2, characterized in that: The rear side of the protective sleeve (17) is fixedly connected to the front side of the first baffle (16), and the outside of the second baffle (18) is slidably connected to the inside of the protective sleeve (17).
5. A high-efficiency, anti-clogging, and easy-to-clean hydraulic pump according to claim 2, characterized in that: The rear side of the spring (19) is fixedly connected to the front side of the first baffle (16), and the front side of the spring (19) is fixedly connected to the rear side of the second baffle (18).
6. A high-efficiency, anti-clogging, and easy-to-clean hydraulic pump according to claim 2, characterized in that: The opposite sides of the two protective sleeves (17) are fixedly connected to the outside of the oil inlet pipe (5), and the opposite sides of the two protective sleeves (17) are fixedly connected to the outside of the oil outlet pipe (6).
7. A high-efficiency, anti-clogging, and easy-to-clean hydraulic pump according to claim 1, characterized in that: The inside of the clamp (7) is fixedly connected to the outside of the disc (12), and the inside of the pump housing (2) is fixedly connected to the outside of the hydraulic pump (9).
8. A high-efficiency, anti-clogging, and easy-to-clean hydraulic pump according to claim 1, characterized in that: The inside of the pump housing (2) is fixedly connected to the outside of the oil inlet pipe (5), and the inside of the pump housing (2) is fixedly connected to the outside of the oil outlet pipe (6).