Hydraulic piston pump suitable for high viscosity media
By introducing a sealing shell and a squeezing mechanism into the hydraulic plunger pump, the problem of viscous liquid adhesion was solved, enabling stable delivery of high-viscosity media and normal operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG YUKE ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-07-17
AI Technical Summary
When transporting high-viscosity media, existing hydraulic piston pumps often encounter viscous liquids that tend to adhere to the connecting rod, affecting the normal operation of the equipment and making the pump difficult to use.
The design incorporates a sealed shell and extrusion mechanism, using gaskets, discs, and caps to prevent viscous liquids from adhering to the rotating shaft, enhancing the equipment's sealing and protection capabilities and ensuring smooth liquid transfer.
It improves the stability and sealing of hydraulic plunger pumps in high-viscosity media, prevents liquid blockage, and ensures normal equipment operation.
Smart Images

Figure CN224515325U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic piston pump technology, specifically a hydraulic piston pump suitable for high viscosity media. Background Technology
[0002] A hydraulic piston pump is a positive displacement pump that uses a hydraulic power unit to drive a hydraulic cylinder, which in turn pushes a conveying cylinder to output material from the conveying cylinder to a pipeline. Based on the arrangement and direction of piston movement, piston pumps can be divided into two main categories: radial piston pumps and axial piston pumps. However, existing hydraulic piston pumps have some shortcomings, such as:
[0003] The hydraulic piston pump with application number CN202323051800.X can extract and discharge oil, and can avoid oil leakage and has high reliability. However, in actual use, when viscous liquid enters the pump, it may stick to the connecting rod position, which may affect the connecting rod's ability to push the hydraulic piston and other mechanisms, making the hydraulic piston pump difficult to use.
[0004] Therefore, we propose a hydraulic piston pump suitable for high-viscosity media to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a hydraulic plunger pump suitable for high-viscosity media, in order to solve the problem mentioned in the background art that when most hydraulic plunger pumps on the market are filled with viscous liquid, the liquid may stick to the connecting rod position, which may cause the liquid to affect the connecting rod to push the hydraulic plunger and other mechanisms, thus making the hydraulic plunger pump difficult to use.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic plunger pump suitable for high viscosity media, comprising a first sealing shell and a second sealing shell connected to the right end of the first sealing shell, wherein a compression mechanism is provided inside the first sealing shell, and four sets of hydraulic plunger mechanisms are connected to the right end of the compression mechanism, and the four sets of hydraulic plunger mechanisms are located inside the sealing seat, wherein the sealing seat is fixedly connected to the inside of the second sealing shell.
[0007] The right end of the second sealing shell is sealed to the connecting shell, and the hydraulic plunger mechanism can transmit liquid through the sealing seat to the inside of the connecting shell. The top of the first sealing shell is connected to an inlet valve, and the bottom of the connecting shell is connected to an outlet valve.
[0008] By sealing the outer side of the extrusion mechanism with the outer side of the first sealing shell, viscous liquid will not adhere to the rotating shaft during use, thus preventing the extrusion mechanism from malfunctioning. This ensures that the extrusion mechanism will not be blocked by viscous liquid, preventing the equipment from malfunctioning and increasing the stability of the equipment during use.
[0009] As a preferred technical solution of this utility model, the first sealing shell is sealed to the extrusion mechanism, and the extrusion mechanism includes a connecting shaft, and a sealing gasket is provided at the right end of the connecting shaft. An inclined plate is provided at the right end of the sealing gasket, and a rotating shaft is connected to the right end of the inclined plate. A sealing disc is slidably connected to the outside of the rotating shaft.
[0010] The above technical solution enables the sealing gasket to seal the left end of the first sealing shell, thereby preventing leakage that could cause the connecting shaft to slide or stick, and increasing the sealing performance of the device during use.
[0011] As a preferred technical solution of this utility model, the right end of the sealing disc is connected to the hydraulic plunger mechanism, and the hydraulic plunger mechanism includes a ball seat, and the right end of the ball seat is connected to a liquid inlet. The right end of the liquid inlet is connected to a transmission pipe, and the transmission pipe is provided with a first liquid-blocking ball, which can block the inside of the transmission pipe. The right end of the first liquid-blocking ball is connected to a first spring.
[0012] The above technical solution enables the first spring to contract when the transmission tube moves to the right, thereby driving the first liquid-blocking ball to open the transmission tube for liquid delivery, and the first spring to return to its original position when the tube moves to the left, thereby causing the first liquid-blocking ball to block the transmission tube, making the device more stable during operation.
[0013] As a preferred technical solution of this utility model, the right end of the first spring is fixedly connected to the right end of the transmission tube, and a second spring is provided inside the connecting shell. The left end of the second spring is connected to a second liquid-blocking ball, and the right end of the sealing seat is provided with a liquid outlet. The second spring can drive the second liquid-blocking ball to block the liquid outlet.
[0014] The above technical solution makes it more convenient to connect the shell when storing liquid, thereby increasing the working efficiency of the equipment.
[0015] As a preferred technical solution of this utility model, the left end of the connecting shell is provided with a sealing groove, and the connecting shell is sealed to the second sealing shell through the sealing groove. The right end of the rotating shaft is fixedly connected to the sealing seat, and the sealing disc is sealed to the inside of the first sealing shell.
[0016] The above technical solution enables the connecting shell to be more stable when connected to the second sealing shell, thereby increasing the sealing and protection of the equipment.
[0017] As a preferred technical solution of this utility model, a sealing cover is provided at the right end of the sealing disc, and the ball seat is located inside the sealing cover, and the right end of the ball seat passes through the sealing cover and is connected to the liquid inlet.
[0018] The above technical solution enables the sealing disc to be more stable when connected to the ball seat, and the sealing cover can protect the outside of the ball seat, thereby preventing it from being corroded by viscous liquid and thus preventing it from rotating and sliding, increasing the protection of the device.
[0019] As a preferred technical solution of this utility model, the inside of the sealing seat is sealed to the outside of the transmission pipe, and when the hydraulic plunger mechanism moves to the right, the hole inside the sealing seat will block the liquid inlet.
[0020] Compared with the prior art, the beneficial effects of this utility model are: by sealing the outer side of the extrusion mechanism with the outer side of the first sealing shell, the viscous liquid will not stick to the rotating shaft position during the use of the equipment, thereby hindering the operation of the extrusion mechanism. This prevents the equipment from being blocked by viscous liquid during operation, thus increasing the stability of the equipment during use.
[0021] Furthermore, by setting the sealing gasket, the sealing gasket can seal the left end of the first sealing shell, thereby preventing leakage that could cause the connecting shaft to slide or stick, thus increasing the sealing performance of the device during use.
[0022] Furthermore, by setting a sealing cover on the right end of the sealing disc, the connection between the sealing disc and the ball seat can be made more stable, and the sealing cover can protect the outside of the ball seat, thereby preventing it from being corroded by viscous liquid and thus avoiding the inability to rotate or slide, increasing the protection of the device. Attached Figure Description
[0023] Figure 1 This is a front view of the structure of this utility model;
[0024] Figure 2 This is a three-dimensional structural schematic diagram of the front cross-section of this utility model;
[0025] Figure 3 This is a schematic diagram of the internal structure of the first and second sealing shells of this utility model;
[0026] Figure 4 This is a three-dimensional structural diagram of the extrusion mechanism of this utility model;
[0027] Figure 5 This is a three-dimensional structural diagram of the connection between the sealing disc and the hydraulic plunger mechanism of this utility model;
[0028] Figure 6This is a three-dimensional structural schematic diagram of the cross-sectional view of the hydraulic plunger mechanism of this utility model.
[0029] In the diagram: 1. First sealing shell; 2. Second sealing shell; 3. Connecting shell; 4. Connecting shaft; 5. Sealing gasket; 6. Inclined plate; 7. Rotating shaft; 8. Sealing disc; 9. Inlet valve; 10. Ball seat; 11. Inlet; 12. Transmission pipe; 13. First liquid-blocking ball; 14. First spring; 15. Sealing seat; 16. Outlet; 17. Second liquid-blocking ball; 18. Second spring; 19. Outlet valve; 20. Sealing cover. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0031] To address the problem in existing technologies where it is difficult to protect extrusion components, leading to viscous liquids adhering to the extrusion mechanism or connecting parts and causing malfunctions, the following solution is disclosed. Please refer to [link / reference]. Figures 1-6 This utility model provides a technical solution: a hydraulic plunger pump suitable for high viscosity media, including a first sealing shell 1 and a second sealing shell 2 connected to the right end of the first sealing shell 1. The first sealing shell 1 is provided with a squeezing mechanism, and the right end of the squeezing mechanism is connected to four sets of hydraulic plunger mechanisms. The four sets of hydraulic plunger mechanisms are located inside the sealing seat 15, and the sealing seat 15 is fixedly connected to the inside of the second sealing shell 2.
[0032] The right end of the second sealing shell 2 is sealed to the connecting shell 3, and the hydraulic plunger mechanism can transmit liquid through the sealing seat 15 to the inside of the connecting shell 3. The top of the first sealing shell 1 is connected to the liquid inlet valve 9, and the bottom of the connecting shell 3 is connected to the liquid outlet valve 19.
[0033] The first sealing shell 1 is sealed to the inside of the extrusion mechanism, and the extrusion mechanism includes a connecting shaft 4, and a sealing gasket 5 is provided at the right end of the connecting shaft 4. An inclined plate 6 is provided at the right end of the sealing gasket 5, and a rotating shaft 7 is connected to the right end of the inclined plate 6. A sealing disc 8 is slidably connected to the outside of the rotating shaft 7.
[0034] The right end of the sealing disc 8 is connected to the hydraulic plunger mechanism, and the hydraulic plunger mechanism includes a ball seat 10, and the right end of the ball seat 10 is connected to a liquid inlet 11. The right end of the liquid inlet 11 is connected to a transmission pipe 12, and the transmission pipe 12 is provided with a first liquid blocking ball 13, which can block the inside of the transmission pipe 12. The right end of the first liquid blocking ball 13 is connected to a first spring 14.
[0035] The right end of the first spring 14 is fixedly connected to the right end of the transmission tube 12, and the connecting shell 3 is provided with a second spring 18. The left end of the second spring 18 is connected to a second liquid-blocking ball 17, and the right end of the sealing seat 15 is provided with a liquid outlet 16. The second spring 18 can drive the second liquid-blocking ball 17 to block the liquid outlet 16.
[0036] The left end of the connecting shell 3 is provided with a sealing groove, and the connecting shell 3 is sealed to the second sealing shell 2 through the sealing groove. The right end of the rotating shaft 7 is fixedly connected to the sealing seat 15, and the sealing disc 8 is sealed to the inside of the first sealing shell 1.
[0037] The sealing plate 8 has a sealing cover 20 on the right end, and the ball seat 10 is located inside the sealing cover 20. The right end of the ball seat 10 passes through the sealing cover 20 and is connected to the liquid inlet 11. The inside of the sealing seat 15 is sealed to the outside of the transmission pipe 12. When the hydraulic plunger mechanism moves to the right, the hole inside the sealing seat 15 will block the liquid inlet 11.
[0038] Working principle: When using this hydraulic plunger pump suitable for high viscosity media, the viscous liquid is first transferred from the inlet valve 9 at the top of the first sealing shell 1. Then, the extrusion mechanism pulls and pushes the four sets of hydraulic plunger mechanisms, causing the four sets of hydraulic plunger mechanisms to move back and forth in the sealing seat 15 inside the second sealing shell 2, thereby allowing the liquid to enter the hydraulic plunger mechanism. The liquid is then transferred to the inside of the connecting shell 3 by the thrust of the extrusion mechanism.
[0039] When the extrusion mechanism is running, it can be connected to the connecting shaft 4 via a motor, so that the connecting shaft 4 drives the sealing gasket 5 and the inclined plate 6 to run, so that the protruding part at the right end of the inclined plate 6 pushes the sealing disc 8 out, so that the sealing disc 8 drives the hydraulic plunger mechanism to push and pull. At the same time, the rotating shaft 7 will also rotate under the drive of the inclined plate 6, so that the inclined groove in the middle of the rotating shaft 7 limits the sealing disc 8.
[0040] When the hydraulic plunger mechanism is pushed into the sealing seat 15 by the compression mechanism, the inlet 11 will be blocked by the sealing seat 15. At the same time, the liquid inside the transmission pipe 12 will squeeze the first liquid blocking ball 13, so that the first liquid blocking ball 13 is driven by the first spring 14 and transmitted from the outlet 16 to the inside of the connecting shell 3. When the hydraulic plunger mechanism is pushed and pulled back to its original position by the compression mechanism, the inlet 11 will be pulled out from the sealing seat 15, so that the liquid is transmitted through the inlet 11 to the inside of the transmission pipe 12. At the same time, the first spring 14 will also drive the first liquid blocking ball 13 to block the inside of the transmission pipe 12 under the pulling force, so as to prevent the liquid inside the connecting shell 3 from flowing back into the inside of the transmission pipe 12.
[0041] When the connecting shell 3 receives liquid at the outlet 16, the liquid at the outlet 16 will push the second liquid-blocking ball 17 away, causing the second spring 18 to contract and thus drive the second liquid-blocking ball 17 to move and open the outlet 16. When the liquid at the outlet 16 is discharged, the second spring 18 will drive the second liquid-blocking ball 17 to reset, thereby blocking the outlet 16 and preventing the liquid inside the connecting shell 3 from flowing back into the sealing seat 15.
[0042] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A hydraulic piston pump suitable for high viscosity medium, comprising a first seal shell (1), a second seal shell (2) connected with the right end of the first seal shell (1), characterized in that, The first sealing shell (1) is provided with a compression mechanism, and the right end of the compression mechanism is connected to four sets of hydraulic plunger mechanisms. The four sets of hydraulic plunger mechanisms are located inside the sealing seat (15), and the sealing seat (15) is fixedly connected to the inside of the second sealing shell (2). The right end of the second sealing shell (2) is sealed to the connecting shell (3), and the hydraulic plunger mechanism can transmit liquid through the sealing seat (15) to the inside of the connecting shell (3). The top of the first sealing shell (1) is connected to the inlet valve (9), and the bottom of the connecting shell (3) is connected to the outlet valve (19).
2. A hydraulic piston pump suitable for high viscosity media according to claim 1, characterized in that, The first sealing shell (1) is sealed to the inside of the extrusion mechanism, and the extrusion mechanism includes a connecting shaft (4), and the right end of the connecting shaft (4) is provided with a sealing gasket (5), the right end of the sealing gasket (5) is provided with an inclined plate (6), and the right end of the inclined plate (6) is connected to a rotating shaft (7), and a sealing disc (8) is slidably connected to the outside of the rotating shaft (7).
3. A hydraulic piston pump suitable for high viscosity media according to claim 2, characterized in that, The right end of the sealing disc (8) is connected to the hydraulic plunger mechanism, and the hydraulic plunger mechanism includes a ball seat (10), and the right end of the ball seat (10) is connected to an inlet (11). The right end of the inlet (11) is connected to a transmission pipe (12), and the transmission pipe (12) is provided with a first liquid-blocking ball (13), and the first liquid-blocking ball (13) can block the inside of the transmission pipe (12). The right end of the first liquid-blocking ball (13) is connected to a first spring (14).
4. A hydraulic piston pump suitable for high viscosity media according to claim 3, characterized in that, The right end of the first spring (14) is fixedly connected to the right end of the transmission tube (12), and the connecting shell (3) is provided with a second spring (18). The left end of the second spring (18) is connected to a second liquid-blocking ball (17), and the right end of the sealing seat (15) is provided with a liquid outlet (16). The second spring (18) can drive the second liquid-blocking ball (17) to block the liquid outlet (16).
5. A hydraulic piston pump suitable for high viscosity media according to claim 4, characterized in that, The left end of the connecting shell (3) is provided with a sealing groove, and the connecting shell (3) is sealed to the second sealing shell (2) through the sealing groove. The right end of the rotating shaft (7) is fixedly connected to the sealing seat (15), and the sealing disc (8) is sealed to the inside of the first sealing shell (1).
6. A hydraulic piston pump suitable for high viscosity media according to claim 5, characterized in that, The sealing disc (8) has a sealing cover (20) on the right end, and the ball seat (10) is located inside the sealing cover (20), and the right end of the ball seat (10) passes through the sealing cover (20) and is connected to the liquid inlet (11).
7. The hydraulic piston pump suitable for use with high viscosity media of claim 5, wherein, The sealing seat (15) is sealed to the outside of the transmission pipe (12), and when the hydraulic plunger mechanism moves to the right, the hole inside the sealing seat (15) will block the liquid inlet (11).