A filter cartridge with a shutter assembly

Abstract

The utility model discloses a filter core with valve assembly, including filter core subassembly, filter core subassembly includes outer skeleton and inner skeleton, the outer skeleton and inner skeleton are provided with filter layer, and the left end inboard of filter core subassembly is equipped with the lining, and the left end outside of filter core subassembly is provided with end cap, and the lining and end cap are all annular structure, the right end of filter core subassembly is provided with bottom cover, the middle of bottom cover is provided with circular opening, and the edge of circular opening is provided with the support ring that projects to filter core subassembly inside, and the support ring is integrally connected with bottom cover, and the place of circular opening is connected with valve assembly, this filter core with valve assembly, simple structure, convenient installation can carry out protection when filter core is blocked, and the pressure adjustment of valve bears, thereby suitable for the raw material filtration of different substances, and the use range is wider.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a filter with a valve assembly. Background Technology

[0002] Currently, existing hydraulic filter elements only serve the single function of filtering hydraulic media to maintain oil cleanliness and ensure system reliability; they are merely auxiliary components within the overall hydraulic system. Due to the filter's position and function within the hydraulic system, it is inevitably affected by pressure. Therefore, additional pipelines are required during installation to minimize the pressure difference between the filter's inlet and outlet. Furthermore, existing filter elements lack safety protection functions, and different pressure settings for safety valves are needed for different filtrates, making them inconvenient to use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a filter element with a valve assembly. It has a simple structure, is easy to install, can protect the filter element when it is clogged, and can adjust the pressure that the valve can withstand, so it can be used to filter raw materials of different substances and has a wider range of applications. It can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a filter element with a valve assembly, comprising a filter element assembly, the filter element assembly including an outer frame and an inner frame, the outer frame and the inner frame being provided with filter layers, a liner being provided on the inner side of the left end of the filter element assembly, and an end cap being provided on the outer side of the left end of the filter element assembly, both the liner and the end cap being annular structures, a bottom cover being provided on the right end of the filter element assembly, a circular opening being provided in the middle of the bottom cover, a support ring being provided at the edge of the circular opening protruding into the filter element assembly, the support ring being integrally connected to the bottom cover, and a valve assembly being connected to the circular opening.

[0005] Furthermore, the inner left side of the liner and end cap forms an annular groove, and a rubber sealing ring is provided inside the annular groove.

[0006] Furthermore, the valve assembly includes a central screw, with a valve seat 1, a valve seat 2, and a baffle slidably connected in the middle of the central screw. The valve seat 2 and the baffle are located on the left and right sides of the support ring, respectively. The valve seat 1 is located at the left end of the central screw, and a spring is provided between the valve seat 1 and the valve seat 2. Fixing nuts are provided at the left and right ends of the central screw, respectively.

[0007] Furthermore, an adhesive pad is attached to the left side of the baffle by means of adhesive, which seals the circular opening on the bottom cover.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: During the filtration process, the liquid first enters the interior through the left end of the filter element assembly and is filtered by the filter layer on the filter element assembly. After the filter layer has been used for a period of time, impurities will clog the filter layer, resulting in an excessive pressure difference between the inner and outer sides of the filter element assembly. The liquid pressure pushes against the baffle, allowing the liquid to be discharged directly from the circular opening on the bottom cover without passing through the filter layer, thus protecting the filter element assembly. When it is necessary to adjust the pressure of the valve assembly, the fixing nut on the right end is rotated to adjust the distance between the two fixing nuts, thereby compressing or releasing the spring, making the pressure between the baffle and the bottom cover greater or less. This filter element with a valve assembly has a simple structure, is easy to install, can protect against filter element clogging, and allows for pressure adjustment of the valve, making it suitable for filtering raw materials of different substances and thus having a wider range of applications. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the valve assembly of this utility model; Figure 3 This is a schematic diagram of the valve seat structure of this utility model.

[0010] In the diagram: 1. Outer frame, 2. Inner frame, 3. Liner, 4. End cap, 5. Rubber sealing ring, 6. Bottom cap, 7. Support ring, 8. Intermediate screw, 9. Valve seat one, 10. Valve seat two, 11. Baffle, 12. Spring, 13. Fixing nut, 14. Rubber pad, 15. Filter layer. Detailed Implementation

[0011] 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.

[0012] Please see Figure 1-3This utility model provides a technical solution: a filter element with a valve assembly, comprising a filter element assembly, the filter element assembly including an outer frame 1 and an inner frame 2, the outer frame 1 and the inner frame 2 being provided with filter layers 15, a liner 3 being provided on the inner side of the left end of the filter element assembly, and an end cap 4 being provided on the outer side of the left end of the filter element assembly, both the liner 3 and the end cap 4 being annular structures, a bottom cover 6 being provided on the right end of the filter element assembly, the bottom cover 6 having a circular opening in the middle, and a support ring 7 protruding into the filter element assembly at the edge of the circular opening, the support ring 7 being connected to the bottom cover. 6 is integrally connected, and a valve assembly is connected at the circular opening. The inner left sides of the liner 3 and end cap 4 form an annular groove, and a rubber sealing ring 5 is provided inside the annular groove. The valve assembly includes a central screw 8, and a valve seat 1 9, a valve seat 2 10, and a baffle 11 are slidably connected in the middle of the central screw 8. The valve seat 2 10 and the baffle 11 are located on the left and right sides of the support ring 7, respectively. The valve seat 1 9 is located at the left end of the central screw 8, and a spring 12 is provided between the valve seat 1 9 and the valve seat 2 10. The left side of the central screw 8... Fixed nuts 13 are respectively set at the left and right ends. A rubber gasket 14 is attached to the left side of the baffle 11 by adhesive, and the rubber gasket 14 seals the circular opening on the bottom cover 6. During the filtration process, the liquid first enters the interior through the left end of the filter element assembly and is filtered by the filter layer 15 on the filter element assembly. After the filter layer 15 has been used for a period of time, impurities will clog the filter layer 15, so the pressure difference between the inside and outside of the filter element assembly is too large. The liquid pressure pushes the baffle 11, so that the liquid is discharged directly from the circular opening on the bottom cover 6 without passing through the filter layer 15, thus protecting the filter element assembly. When it is necessary to adjust the pressure of the valve assembly, the fixed nut 13 at the right end is rotated to adjust the distance between the two fixed nuts 13 to decrease or increase, thereby compressing or releasing the spring 12, making the pressure between the baffle 11 and the bottom cover 6 greater or less. This filter element with valve assembly has a simple structure and is easy to install. It can protect when the filter element is clogged, and the pressure of the valve can be adjusted to make it suitable for filtering raw materials of different substances, thus expanding its application range.

[0013] During use: During the filtration process, the liquid first enters the interior through the left end of the filter element assembly and is filtered by the filter layer 15 on the filter element assembly. After the filter layer 15 has been used for a period of time, impurities will clog the filter layer 15, resulting in an excessive pressure difference between the inner and outer sides of the filter element assembly. The liquid pressure pushes the baffle 11, thereby allowing the liquid to be discharged directly from the circular opening on the bottom cover 6 without passing through the filter layer 15, thus protecting the filter element assembly. When it is necessary to adjust the pressure of the valve assembly, the fixing nut 13 on the right end is rotated to adjust the distance between the two fixing nuts 13 to decrease or increase, thereby compressing or releasing the spring 12, making the pressure between the baffle 11 and the bottom cover 6 greater or less.

[0014] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A filter element with a valve assembly, comprising a filter element assembly, characterized in that: The filter element assembly includes an outer frame (1) and an inner frame (2). The outer frame (1) and the inner frame (2) are provided with filter layers (15). A liner (3) is provided on the inner side of the left end of the filter element assembly, and an end cap (4) is provided on the outer side of the left end of the filter element assembly. Both the liner (3) and the end cap (4) are annular structures. A bottom cover (6) is provided on the right end of the filter element assembly. A circular opening is provided in the middle of the bottom cover (6). A support ring (7) protruding into the filter element assembly is provided at the edge of the circular opening. The support ring (7) is integrally connected with the bottom cover (6), and a valve assembly is connected at the circular opening.

2. The filter element with a valve assembly according to claim 1, characterized in that: The inner left side of the liner (3) and the end cap (4) forms an annular groove, and a rubber sealing ring (5) is provided inside the annular groove.

3. A filter element with a valve assembly according to claim 1, characterized in that: The valve assembly includes a central screw (8), and a valve seat 1 (9), a valve seat 2 (10), and a baffle (11) are slidably connected in the middle of the central screw (8). The valve seat 2 (10) and the baffle (11) are located on the left and right sides of the support ring (7), respectively. The valve seat 1 (9) is located at the left end of the central screw (8), and a spring (12) is provided between the valve seat 1 (9) and the valve seat 2 (10). Fixing nuts (13) are provided at the left and right ends of the central screw (8), respectively.

4. A filter element with a valve assembly according to claim 3, characterized in that: The left side of the baffle (11) is connected to a rubber pad (14) by adhesive, which seals the circular opening on the bottom cover (6).

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