A hydraulic station that facilitates filter installation

By introducing a sliding fit between the slide rail and the slider and an elastic positioning structure of the positioning column into the hydraulic station, combined with a double sealing design, the problems of inconvenient filter installation and poor sealing are solved, achieving convenient installation and efficient sealing, and improving the safety and stability of the hydraulic system.

CN224433003UActive Publication Date: 2026-06-30SHANGHAI RUOTONG MACHINERY EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI RUOTONG MACHINERY EQUIPMENT CO LTD
Filing Date
2025-08-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In traditional hydraulic power units, filter installation is inconvenient, and installation deviations and poor sealing are prone to occur, leading to hydraulic oil leakage and affecting system stability and safety.

Method used

The slide rail and slider are used in conjunction with the elastic positioning structure of the positioning column and spring to ensure accurate positioning of the filter, and the double sealing structure of the connecting pipe and the return oil pipe improves the sealing reliability.

Benefits of technology

This enables convenient installation and removal of the filter, reduces installation deviations, improves sealing performance, reduces the risk of hydraulic oil leakage, and ensures the operational safety and stability of the system.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224433003U_ABST
    Figure CN224433003U_ABST
Patent Text Reader

Abstract

This utility model discloses a hydraulic station for easy filter installation, comprising a hydraulic station body, a filter bracket mounted on the front side of the hydraulic station body, a filter body mounted on the filter bracket, a slide rail fixedly connected to the left side of the filter bracket, a slider slidably connected within the slide rail, the slider being fixedly connected to the left side of the filter, and a positioning hole provided on the slider. A fixing block is fixedly connected to the left side of the filter bracket, a positioning post slidably connected through the fixing block, and a rectangular plate fixedly connected to the left side of the positioning post. The rectangular plate and the adjacent side of the fixing block are elastically connected by two springs. This utility model has the advantages of easy installation, precise positioning, reliable sealing, and stable installation, and is of great significance for improving the maintenance efficiency of hydraulic stations and ensuring the safety of system operation.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic station technology, and in particular to a hydraulic station that is easy to install a filter. Background Technology

[0002] During the operation of a hydraulic system, the hydraulic power unit, as the core power source, directly affects the stability and service life of the entire system. The cleanliness of the hydraulic oil is one of the key factors ensuring the normal operation of the hydraulic power unit. Therefore, filters are widely used in hydraulic power units to filter impurities, particles, and other contaminants from the hydraulic oil, preventing contaminants from entering the hydraulic components and causing wear, blockages, and other malfunctions.

[0003] However, the installation structure of filters in traditional hydraulic power units presents numerous inconveniences. Currently, some filter installation structures lack effective positioning and guiding mechanisms, making it difficult to quickly align the connection interfaces during installation. This can easily lead to installation deviations, resulting in poor sealing and subsequently causing hydraulic oil leakage. Hydraulic oil leakage not only wastes resources but can also pollute the working environment and even affect the normal pressure of the hydraulic system, posing a threat to the operational safety of the hydraulic power unit.

[0004] Meanwhile, most existing filters are installed with bolts. During installation, it is necessary not only to hold the filter by hand, but also to align the bolts with the threaded holes on the filter, resulting in low installation efficiency.

[0005] Therefore, a hydraulic station that facilitates filter installation needs to be designed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydraulic station with an easy-to-install filter. This invention has the advantages of easy installation, precise positioning, reliable sealing, and stable installation, and is of great significance for improving the maintenance efficiency of hydraulic stations and ensuring the safety of system operation.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A hydraulic station for easy filter installation includes a hydraulic station body, a filter bracket mounted on the front side of the hydraulic station body, a filter body mounted on the filter bracket, a slide rail fixedly connected to the left side of the filter bracket, a slider slidably connected within the slide rail, the slider being fixedly connected to the left side of the filter, the slider having a positioning hole, a fixing block fixedly connected to the left side of the filter bracket, a positioning post slidably connected through the fixing block, a rectangular plate fixedly connected to the left side of the positioning post, and the rectangular plate being elastically connected to the adjacent side of the fixing block by two springs.

[0009] Preferably, the filter bracket is provided with multiple mounting holes, and the upper end of the filter body is threaded with multiple fixing bolts, all of which pass through the corresponding mounting holes.

[0010] Preferably, the upper end of the filter body is connected to a vertical pipe, the outer wall of the vertical pipe is provided with a first thread layer, the lower end of the filter body is connected to a connecting pipe, the front side of the hydraulic station body is provided with a return oil port, the return oil port is connected to a return oil pipe, the outer walls of the return oil pipe and the connecting pipe are both provided with a second thread layer, and the two second thread layers are threaded together to form a connecting sleeve.

[0011] Preferably, a sealing ring is provided between the connecting pipe and the return oil pipe, and a groove is provided on the front side of the return oil pipe, in which the sealing ring is embedded.

[0012] Preferably, the return oil pipe is Z-shaped and the connecting pipe is L-shaped.

[0013] Preferably, a stop block is fixedly connected to the upper end of the slide rail.

[0014] Compared with existing technologies, the advantages of this device are:

[0015] 1. Compared with existing technologies, the installation and disassembly process is more convenient and efficient. Through the sliding cooperation of the slide rail and slider, combined with the elastic positioning structure of the positioning column and spring, the filter can be pre-fixed, significantly shortening maintenance time, reducing labor costs, and minimizing the risk of component damage due to frequent disassembly and assembly;

[0016] 2. Compared with existing technologies, the slide rail provides a stable guide for the slider, ensuring that the filter can move along a fixed trajectory during installation, effectively avoiding the installation deviation problem caused by the lack of guidance in traditional installation methods; and the cooperation between the positioning pin and the positioning hole can further fix the filter, ensuring the stability of the filter after installation, laying the foundation for the precise docking of the subsequent connecting pipe and the return oil pipe.

[0017] 3. Compared with existing technologies, the connecting pipe and the return oil pipe are connected to the connecting sleeve by the second thread layer on the outer wall. Together with the oil-resistant rubber sealing ring in the groove of the return oil pipe, a double sealing structure is formed, which significantly improves the sealing reliability of the connection, effectively solves the problem of hydraulic oil leakage caused by poor sealing in traditional connection structures, reduces resource waste and environmental pollution risks, and ensures the normal pressure and operational safety of the hydraulic system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a hydraulic station that facilitates filter installation according to the present invention;

[0019] Figure 2This is a schematic diagram of the filter body.

[0020] Figure 3 for Figure 1 A magnified structural diagram of point A in the middle.

[0021] In the diagram: 1. Hydraulic station body, 2. Oil return port, 3. Oil return pipe, 4. Connecting sleeve, 5. Filter body, 6. Connecting pipe, 7. Slider, 8. Slide rail, 9. Stop block, 10. Fixing block, 11. Positioning column, 12. Spring, 13. Rectangular plate, 14. Fixing bolt, 15. Vertical pipe, 16. Positioning hole. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3 A hydraulic station for easy filter installation includes a hydraulic station body 1. A filter bracket is mounted on the front side of the hydraulic station body 1. The filter bracket is welded from steel plate and provides stable support for the filter body 5. The filter body 5 is mounted on the filter bracket. A slide rail 8 is fixedly connected to the left side of the filter bracket. The slide rail 8 is vertically oriented and has a U-shaped cross-section. A slider 7 is slidably connected inside the slide rail 8. The slider 7 is fixedly connected to the left side of the filter 5. The slider 7 has a positioning hole 16. The left side of the filter bracket... A fixing block 10 is fixedly connected to the side, and a positioning post 11 is slidably connected through the fixing block 10. The positioning post 11 can slide freely along the horizontal direction of the fixing block 10. A rectangular plate 13 is fixedly connected to the left side of the positioning post 11. The surface area of ​​the rectangular plate 13 is larger than the cross-sectional area of ​​the positioning post 11, which makes it easier for the operator to hold and pull. The rectangular plate 13 and the adjacent side of the fixing block 10 are elastically connected by two springs 12. A stop block 9 is fixedly connected to the upper end of the slide rail 8. The stop block 9 is used to limit the sliding stroke of the slider 7 and prevent the slider 7 from slipping off the upper end of the slide rail 8.

[0024] The filter bracket has multiple mounting holes, and the upper end of the filter body 5 is threaded with multiple fixing bolts 14, all of which pass through the corresponding mounting holes.

[0025] The filter body 5 has a vertical pipe 15 connected to its upper end, which is connected to the filter chamber inside the filter body 5. The outer wall of the vertical pipe 15 is provided with a first thread layer. The lower end of the filter body 5 is connected with a connecting pipe 6. The front side of the hydraulic station body 1 is provided with an oil return port 2, which is connected with an oil return pipe 3. The outer walls of both the oil return pipe 3 and the connecting pipe 6 are provided with a second thread layer. The two second thread layers are connected together by a connecting sleeve 4. A sealing ring is provided between the connecting pipe 6 and the oil return pipe 3. The front side of the oil return pipe 3 is provided with a groove, and the sealing ring is embedded in the groove. The oil return pipe 3 is Z-shaped, and the connecting pipe 6 is L-shaped. Through this structural design, the oil return pipe 3 and the connecting pipe 6 can be quickly aligned when the filter body 5 is moved upwards for installation.

[0026] The functional principle of this utility model can be explained through the following operation: When installing the filter, first pull the rectangular plate 13 to make the positioning post 11 slide within the fixing block 10 and compress the spring 12. At this time, align the slider 7 on the left side of the filter body 5 with the slide rail 8 on the filter bracket, and push the filter to make the slider 7 slide along the slide rail 8. When the slider 7 slides to the appropriate position, release the rectangular plate 13, the spring 12 restores its elastic deformation and pushes the positioning post 11 through the fixing block 10 and into the positioning hole 16 on the slider 7, completing the pre-fixation of the filter. Then, pass the fixing bolt 14 at the upper end of the filter body 5 through the mounting hole on the filter bracket and tighten it to further enhance the stability of the filter installation.

[0027] When connecting the oil circuit, align the L-shaped connecting pipe 6 at the lower end of the filter body 5 with the Z-shaped return oil pipe 3 at the return oil port 2 of the hydraulic station body 1. Place the connecting sleeve 4 on the outer walls of both, and connect the connecting pipe 6 and the return oil pipe 3 via the second threaded layer on their outer walls, ensuring a tight fit. At this time, the oil-resistant rubber sealing ring in the groove of the return oil pipe 3 is compressed, forming a sealing structure to prevent hydraulic oil leakage. The vertical pipe 15 at the upper end of the filter body 5 can be connected to other pipelines through the first threaded layer on its outer wall, enabling the filtration and flow of hydraulic oil.

[0028] When it is necessary to disassemble or replace the filter, first unscrew the fixing bolt 14, then pull the rectangular plate 13 to disengage the positioning post 11 from the positioning hole 16 on the slider 7, and slide the slider 7 along the slide rail 8 to remove the filter from the bracket. The operation is simple and quick, and it is convenient for maintenance and replacement.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic station for easy installation of a filter, comprising a hydraulic station body (1), characterized in that: A filter bracket is installed on the front side of the hydraulic station body (1), and a filter body (5) is installed on the filter bracket. A slide rail (8) is fixedly connected to the left side of the filter bracket. A slider (7) is slidably connected inside the slide rail (8). The slider (7) is fixedly connected to the left side of the filter body (5). A positioning hole (16) is provided on the slider (7). A fixing block (10) is fixedly connected to the left side of the filter bracket. A positioning column (11) is slidably connected through the fixing block (10). A rectangular plate (13) is fixedly connected to the left side of the positioning column (11). The adjacent sides of the rectangular plate (13) and the fixing block (10) are elastically connected by two springs (12).

2. The hydraulic station with easy filter installation according to claim 1, characterized in that: The filter bracket is provided with multiple mounting holes, and the upper end of the filter body (5) is threaded with multiple fixing bolts (14), and the multiple fixing bolts (14) all pass through the corresponding mounting holes.

3. The hydraulic station with easy filter installation according to claim 1, characterized in that: The upper end of the filter body (5) is connected to a vertical pipe (15), the outer wall of the vertical pipe (15) is provided with a first thread layer, the lower end of the filter body (5) is connected to a connecting pipe (6), the front side of the hydraulic station body (1) is provided with an oil return port (2), the oil return port (2) is connected to an oil return pipe (3), the outer walls of the oil return pipe (3) and the connecting pipe (6) are both provided with a second thread layer, and the two second thread layers are threaded together to form a connecting sleeve (4).

4. A hydraulic station for easy filter installation according to claim 3, characterized in that: A sealing ring is provided between the connecting pipe (6) and the return oil pipe (3), and a groove is provided on the front side of the return oil pipe (3), and the sealing ring is embedded in the groove.

5. A hydraulic station for easy filter installation according to claim 3, characterized in that: The return oil pipe (3) is Z-shaped, and the connecting pipe (6) is L-shaped.

6. A hydraulic station for easy filter installation according to claim 1, characterized in that: A stop (9) is fixedly connected to the upper end of the slide rail (8).