Energy-saving intelligent hydraulic station pipeline filtering structure
By designing an energy-saving intelligent hydraulic station pipeline filtration structure, the leakage problem of hydraulic station pipeline filters during filter element replacement was solved, achieving leak-free filter element replacement and wide applicability.
Patent Information
- Application Number
- CN202520216273.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-11
AI Technical Summary
The existing hydraulic power station pipeline filter requires opening the sleeve when replacing the filter element, which leads to hydraulic oil leakage and affects the normal operation of the hydraulic power station.
An energy-saving intelligent hydraulic station pipeline filtration structure was designed, including a filtration mechanism, a control mechanism, and a connection mechanism. The filter screen can be disassembled and installed without leakage through the cooperation of a rotating sealing cover, piston, and spring, and it can be adapted to different pipelines through the connection of a sleeve and a flange.
It achieves zero hydraulic oil leakage when changing filter elements, ensuring the safe and stable operation of the hydraulic station, and is suitable for hydraulic pipelines of different lengths.
Smart Images

Figure CN223894630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic filtration technology, specifically an energy-saving intelligent hydraulic station pipeline filtration structure. Background Technology
[0002] A hydraulic power unit is a device used to generate, control, and transmit hydraulic power. It generally includes several important components such as a hydraulic pump, oil tank, hydraulic valves, and hydraulic cylinders. The main function of a hydraulic power unit is to control the movement of various mechanical equipment through hydraulic transmission. In order to ensure the normal operation of the hydraulic power unit, a filtration structure is needed to remove impurities from the hydraulic oil, thereby preventing pipeline blockage from affecting the operation of the hydraulic power unit.
[0003] A hydraulic pipeline filter, with announcement number CN220415912U, has a housing as its main body. An inner cavity is formed within the housing, with an inlet and an outlet at each end. The inlet is connected to the hydraulic pipeline outlet, and the outlet is connected to the hydraulic pipeline inlet. A filter element is installed inside the cavity. An opening is formed on the outer side of the housing, and a sleeve is fitted onto the outer side of the housing, with the sleeve slidably connected to the housing. A sealing ring is provided between the sleeve and the housing. During use, this filter structure can effectively filter out impurities inside the pipeline while allowing operators to easily replace the filter element and maintain the filter structure, thus ensuring the normal and stable operation of the hydraulic station.
[0004] The hydraulic pipeline filter described above also has a problem: during the use of this filter, the sleeve needs to be opened to expose the opening to the external environment in order to replace the filter element. At this time, the hydraulic oil inside the hydraulic pipeline is prone to leaking from the opening, causing the hydraulic station to malfunction. Therefore, an energy-saving intelligent hydraulic station pipeline filtration structure is proposed. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, commercially available filters require opening the sleeve during use, exposing the opening to the external environment before the filter element can be replaced. At this time, the hydraulic oil inside the hydraulic pipeline is prone to leakage from the opening, causing the hydraulic station to malfunction. This utility model proposes an energy-saving intelligent hydraulic station pipeline filtration structure.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The energy-saving intelligent hydraulic station pipeline filter structure of this utility model includes a housing; a filter mechanism is provided on the inner side of the housing, a control mechanism is provided on the bottom side of the housing, a connecting mechanism is provided at both ends of the housing, and a valve seat is fixed on the inner side of the housing.
[0007] Preferably, the filtration mechanism includes a valve seat, a retainer on the top side of the valve seat, a filter screen fastened to the inner side of the retainer, a round rod inserted and fixed at the center of the filter screen, a piston fixed at the top of the round rod, a handle fixed at the top of the piston, a cylinder fixed to the top side of the housing, a sealing cap rotatably installed at the top of the cylinder through a threaded engagement, the piston slidingly installed inside the cylinder, a sealing ring fixed inside the retainer, the sealing ring tightly fitting the filter screen, and a cylinder fixed at the center of the bottom side of the housing. Through the cooperation of the piston and the filter screen, hydraulic oil leakage from the inside of the filtration structure can be prevented during filter screen removal, facilitating subsequent maintenance and replacement by operators.
[0008] Preferably, the control mechanism includes a cylinder, a fixed plate is fixed inside the cylinder, a limit rod is slidably inserted at the center of the fixed plate, an opening and closing component is fixed at the top of the limit rod, a spring is fixedly connected between the opening and closing component and the fixed plate, and the spring is sleeved on the limit rod. The opening and closing component is fastened to the bottom side of the valve seat, and sleeves are slidably fitted at both ends of the housing. By using the opening and closing component in conjunction with the spring, the hydraulic pipeline can be automatically opened and closed when the filter screen is disassembled and installed, so that the hydraulic station can operate safely and stably.
[0009] Preferably, the connecting mechanism includes a sleeve with symmetrically formed limiting grooves on its inner side. Limiting blocks are symmetrically fixed on the circumferential surfaces at both ends of the housing, and the limiting blocks are slidably installed inside the limiting grooves. A rubber ring is uniformly fixed at one end of the inner side of the sleeve, and the rubber ring is tightly fitted to the housing. A flange is fixed at one end of the sleeve, and the sleeve is fixedly connected to the hydraulic pipeline through the flange. Through the structure of the sleeve and the flange, the filter structure can be adapted to different hydraulic pipelines as needed, thus expanding its application range.
[0010] The advantages of this utility model are:
[0011] 1. This utility model, through the structural design of an energy-saving intelligent hydraulic station pipeline filter structure, installs the filter structure into the hydraulic pipeline by setting up a filter mechanism. When replacement and maintenance are required after long-term use, the sealing cover can be rotated and removed from the top of the cylinder. Then, the handle is pulled, causing the piston to slide inside the cylinder, thereby driving the round rod to rise and pull the filter screen out from the inside of the holder. At this time, the round rod disengages from the control mechanism, causing it to close the holder. After the filter screen is pulled out from the inside of the cylinder, it can be cleaned and maintained. Moreover, with the cooperation of the piston, there is no hydraulic oil leakage during the removal process, which solves the problem of leakage that easily occurs during filter element replacement.
[0012] 2. This utility model, through the structural design of an energy-saving intelligent hydraulic station pipeline filter structure, by setting up a control mechanism, after the filter screen is removed, the round rod disengages from the opening and closing part, and the spring pushes the opening and closing part to rise vertically with the cooperation of the limit rod, so that the opening and closing part is fastened to the bottom side of the valve seat, sealing the pipeline. At this time, the hydraulic oil will not leak when the filter screen is replaced, thus ensuring the safe operation of the hydraulic station. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure;
[0015] Figure 2 This is a front-view three-dimensional structural sectional view of the filtration mechanism;
[0016] Figure 3 A top-view sectional view of the control mechanism's three-dimensional structure;
[0017] Figure 4 This is a side view of the three-dimensional structure of the connecting mechanism;
[0018] Figure 5 This is a schematic diagram of the overall frontal three-dimensional structure.
[0019] In the diagram: 1. Shell; 2. Cylinder; 201. Thread; 3. Sealing cap; 4. Piston; 41. Handle; 5. Round rod; 7. Filter screen; 8. Valve seat; 9. Card seat; 10. Sealing ring; 11. Cylinder; 12. Fixing plate; 13. Limiting rod; 14. Opening and closing element; 15. Spring; 16. Sleeve; 17. Limiting groove; 18. Limiting block; 19. Rubber ring; 20. Flange; 21. Anti-slip rib. Detailed Implementation
[0020] 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 scope of protection of the present utility model.
[0021] Please see Figures 1-4As shown, an energy-saving intelligent hydraulic station pipeline filtration structure includes a housing 1; a filtration mechanism is provided inside the housing 1, a control mechanism is provided at the bottom of the housing 1, a connecting mechanism is provided at both ends of the housing 1, and a valve seat 8 is fixed inside the housing 1.
[0022] Please see Figure 2 As shown, the filtration mechanism includes a valve seat 8, a retainer 9 on the top side of the valve seat 8, a filter screen 7 fastened inside the retainer 9, a round rod 5 inserted and fixed at the center of the filter screen 7, a piston 4 fixed at the top of the round rod 5, a handle 41 fixed at the top of the piston 4, a cylinder 2 fixed on the top side of the housing 1, a sealing cap 3 rotatably installed at the top of the cylinder 2 through a thread 201, the piston 4 slidably installed inside the cylinder 2, a sealing ring 10 fixed inside the retainer 9, the sealing ring 10 tightly fitting the filter screen 7, and a cylinder 11 fixed at the center of the bottom side of the housing 1; during operation, when encountering... When replacing the filter element of an existing filter, hydraulic oil leakage is a common problem. By utilizing the structure of the filter mechanism, the filter structure is installed in the hydraulic pipeline. When replacement and maintenance are required after prolonged use, the sealing cover 3 can be rotated and removed from the top of the cylinder 2. Then, pull the handle 41 to make the piston 4 slide inside the cylinder 2, thereby causing the round rod 5 to rise and pull the filter screen 7 away from the inside of the holder 9. At this point, the round rod 5 disengages from the control mechanism, closing the holder 9. After the filter screen 7 is pulled out from the inside of the cylinder 2, it can be cleaned and maintained. Furthermore, with the cooperation of the piston 4, hydraulic oil will not leak during the removal process.
[0023] Please see Figure 3 As shown, the control mechanism includes a cylinder 11, with a fixing plate 12 fixed inside the cylinder 11. A limit rod 13 is slidably inserted at the center of the fixing plate 12, and a closing element 14 is fixed at the top of the limit rod 13. A spring 15 is fixedly connected between the closing element 14 and the fixing plate 12, and the spring 15 is fitted onto the limit rod 13. The closing element 14 is fastened to the bottom side of the valve seat 8, and sleeves 16 are slidably fitted at both ends of the housing 1. During operation, when the hydraulic pipeline is in a connected state and hydraulic oil leakage occurs when the filter element is replaced, the filter screen 7 is removed through the structure of the control mechanism. At this time, the round rod 5 disengages from the closing element 14, and the spring 15 pushes the closing element 14 to rise vertically with the cooperation of the limit rod 13, so that the closing element 14 is fastened to the bottom side of the valve seat 8, sealing the pipeline. At this time, hydraulic oil will not leak when the filter screen 7 is replaced, thus ensuring the safe operation of the hydraulic station.
[0024] Please see Figure 4As shown, the connecting mechanism includes a sleeve 16, with symmetrically arranged limiting grooves 17 on the inner side of the sleeve 16. Limiting blocks 18 are symmetrically fixed on the circumferential surfaces of both ends of the housing 1, and the limiting blocks 18 are slidably installed inside the limiting grooves 17. Rubber rings 19 are uniformly fixed at one end of the inner side of the sleeve 16, and the rubber rings 19 are tightly fitted with the housing 1. A flange 20 is fixed at one end of the sleeve 16, and the sleeve 16 is fixedly connected to the hydraulic pipeline through the flange 20. During operation, when encountering the problem that the filter structure cannot be used due to different lengths of the hydraulic pipeline, the structure of the connecting mechanism can pull the sleeves 16 on both sides, so that they can be extended or retracted to a suitable length under the cooperation of the limiting blocks 18 and the limiting grooves 17. At this time, the flanges 20 at both ends of the sleeve 16 are connected to the hydraulic pipeline and fixed to the hydraulic pipeline by bolts. At the same time, with the cooperation of multiple rubber rings 19, it can be ensured that there will be no leakage at the connection between the sleeve 16 and the housing 1 during the extension and retraction process, so that the filter structure has a wider range of applications.
[0025] Please see Figure 5 As shown, anti-slip ribs 21 are evenly fixed on the circumferential surface of the sealing cover 3. During operation, when the surface of the sealing cover 3 is smooth and easy to disassemble and install, the structure of the anti-slip ribs 21 can increase the friction of the surface of the sealing cover 3, thereby facilitating disassembly and maintenance by operators.
[0026] Working Principle: A hydraulic power unit is a device used to generate, control, and transmit hydraulic power. It generally includes several important components such as a hydraulic pump, oil tank, hydraulic valves, and hydraulic cylinders. The main function of a hydraulic power unit is to control the movement of various mechanical equipment through hydraulic transmission. To ensure the normal operation of the hydraulic power unit, a filtration structure is needed to remove impurities from the hydraulic oil, thereby preventing pipeline blockage from affecting the operation of the hydraulic power unit. Existing filters require opening the sleeve to expose the opening to the external environment before the filter element can be replaced. At this time, the hydraulic oil inside the hydraulic pipeline is prone to leakage through the opening, causing the hydraulic power unit to malfunction. To solve this problem, a filtration mechanism and a control mechanism are set up. Pulling the sleeves 16 on both sides allows them to extend or retract to a suitable length with the cooperation of the limiting blocks 18 and the limiting grooves 17. At this time, the flanges 20 at both ends of the sleeves 16 are connected to the hydraulic pipeline and fixed to the hydraulic pipeline by bolts. Simultaneously, with the cooperation of multiple rubber rings 19, it is ensured that there is no leakage at the connection between the sleeves 16 and the housing 1 during the extension and retraction process. In cases where maintenance or replacement is required after prolonged use, the sealing cover 3 can be rotated and removed from the top of the cylinder 2. Then, pull the handle 41 to cause the piston 4 to slide inside the cylinder 2, thereby raising the round rod 5 and pulling the filter screen 7 away from the inside of the holder 9. At this point, the round rod 5 disengages from the opening / closing element 14, and the spring 15, through its own elasticity, pushes the opening / closing element 14 upwards vertically with the cooperation of the limiting rod 13, causing the opening / closing element 14 to be fastened to the bottom of the valve seat 8, sealing the pipeline. At this time, the hydraulic oil will... There will be no leakage when replacing filter screen 7. After the filter screen 7 is pulled out from the inside of the cylinder 2, it can be cleaned and maintained. With the cooperation of piston 4, there will be no hydraulic oil leakage during the removal process. After maintenance and replacement, piston 4 is reinstalled into the inside of the cylinder 2, which causes the filter screen 7 to be re-attached to the inside of the seat 9. At the same time, the round rod 5 pushes the opening and closing part 14 down to open the bottom of the valve seat 8, so that the hydraulic pipeline is reconnected, thereby ensuring the normal operation of the hydraulic station and solving the problem of leakage that is easy to occur during filter replacement.
[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An energy-saving intelligent hydraulic station pipeline filtration structure, characterized in that: Includes a housing (1); a filter mechanism is provided inside the housing (1), a control mechanism is provided on the bottom side of the housing (1), a connecting mechanism is provided at both ends of the housing (1), and a valve seat (8) is fixed inside the housing (1); The filtering mechanism includes a valve seat (8), a retainer (9) is provided on the top side of the valve seat (8), a filter screen (7) is fastened inside the retainer (9), a round rod (5) is inserted and fixed at the center of the filter screen (7), a piston (4) is fixed at the top of the round rod (5), a handle (41) is fixed at the top of the piston (4), a cylinder (2) is fixed on the top side of the housing (1), and a sealing cap (3) is rotatably installed on the top of the cylinder (2) through a thread (201).
2. The energy-saving intelligent hydraulic station pipeline filtration structure according to claim 1, characterized in that: The piston (4) is slidably mounted inside the cylinder (2), and a sealing ring (10) is fixed inside the card holder (9). The sealing ring (10) is tightly fitted with the filter screen (7), and a cylinder (11) is fixed at the center of the bottom side of the housing (1).
3. The energy-saving intelligent hydraulic station pipeline filtration structure according to claim 2, characterized in that: The control mechanism includes a cylinder (11), a fixing plate (12) is fixed inside the cylinder (11), a limit rod (13) is slidably inserted at the center of the fixing plate (12), and an opening and closing component (14) is fixed at the top of the limit rod (13).
4. The energy-saving intelligent hydraulic station pipeline filtration structure according to claim 3, characterized in that: A spring (15) is fixedly connected between the opening / closing component (14) and the fixing plate (12), and the spring (15) is fitted on the limiting rod (13). The opening / closing component (14) is fastened to the bottom side of the valve seat (8), and sleeves (16) are slidably fitted at both ends of the housing (1).
5. The energy-saving intelligent hydraulic station pipeline filtration structure according to claim 4, characterized in that: The connecting mechanism includes a sleeve (16), with symmetrically provided limiting grooves (17) on the inner side of the sleeve (16), and symmetrically fixed limiting blocks (18) on the circumferential surfaces at both ends of the housing (1), and the limiting blocks (18) are slidably installed inside the limiting grooves (17).
6. The energy-saving intelligent hydraulic station pipeline filtration structure according to claim 5, characterized in that: A rubber ring (19) is evenly fixed to one end of the inner side of the sleeve (16), and the rubber ring (19) is tightly fitted to the shell (1). A flange (20) is fixed to one end of the sleeve (16), and the sleeve (16) is fixedly connected to the hydraulic pipeline through the flange (20).
Citation Information
Patent Citations
Hydraulic pipeline filter
CN220415912U