Filter element pressing and displacement compensation integrated oil filtering device

Abstract

The utility model relates to a filter element compression and displacement compensation integrated oil filtering device, which belongs to the field of oil filtering equipment and comprises a filter cartridge, a filter element and a hollow fixing rod, the fixing rod is vertically arranged in the middle of the inner bottom wall of the filter cartridge, a gland is arranged at the lower end of the fixing rod, a through hole is arranged in the middle of the filter element, and the filter element is sleeved outside the fixing rod. An elastic floating pressing assembly is installed at the upper end of the fixing rod, the gland abuts against the lower end of the filter element in a sealed mode and blocks the lower end of the through hole, the elastic floating pressing assembly elastically presses the upper end of the filter element and blocks the upper end of the through hole, a liquid inlet is formed in the side wall of the filter cylinder, and a liquid discharging pipe communicated with the fixing rod is arranged at the bottom of the filter cylinder. Filter holes are uniformly distributed in the surface of one section, positioned in the through hole of the filter element, of the fixed rod. The filter element has the advantages that the structural design is reasonable, the two ends of the filter element can be sealed and pressed through the cooperation of the elastic floating pressing assembly and the gland, the filter element can adapt to deformation and sinking of the filter element, it is ensured that the two ends of the filter element are always well sealed, and the problem of filtering failure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil filtration equipment, and in particular to an integrated oil filtration device that combines filter element compression and displacement compensation. Background Technology

[0002] In traditional filter cartridges, due to the flexible filter material used, the filter cartridge will deform during the filtration process due to the adsorption of the medium (oil) (usually a sinking deformation, reducing the height). Once deformation occurs, gaps will appear between the two ends of the filter cartridge and the sealing components. At this time, the medium inside the filter cartridge will be discharged directly from the internal channel of the filter cartridge through the gaps, reducing the filtration effect or even rendering it ineffective.

[0003] Therefore, it is necessary to develop an integrated oil filtration device that combines filter element compression and displacement compensation to overcome the aforementioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an integrated oil filtration device for filter element compression and displacement compensation, which effectively overcomes the defects of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] An integrated oil filtration device for filter element compression and displacement compensation includes a filter cylinder, a filter element, and a hollow fixing rod. The fixing rod is vertically disposed in the middle of the bottom wall of the filter cylinder. A pressure cap is provided at the lower end of the fixing rod. The filter element has a through hole in the middle and is sleeved on the fixing rod. An elastic floating compression assembly is installed at the upper end of the fixing rod. The pressure cap seals against the lower end of the filter element and blocks the lower end of the through hole. The elastic floating compression assembly elastically presses against the upper end of the filter element and blocks the upper end of the through hole. The filter cylinder has a liquid inlet on its side wall and a drain pipe communicating with the fixing rod at the bottom. The surface of the fixing rod located inside the through hole of the filter element has filter holes evenly distributed.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the aforementioned elastic floating clamping assembly includes a limiting member, a sealing sleeve, an elastic member, and a pressure plate. The upper end of the sealing sleeve is open, and a pressure ring is provided on the outer edge of the open end. The fixing rod passes through a matching through hole in the middle of the lower end of the sealing sleeve and is slidably assembled with mutual sealing. The limiting member is detachably mounted on the upper end of the fixing rod. The pressure plate is mounted on the limiting member. The elastic member is connected between the pressure plate and the lower end of the sealing sleeve. The sealing sleeve extends into the through hole of the filter element. The filter element is sealed and clamped between the pressure ring and the pressure cap.

[0009] Furthermore, the lower end of the aforementioned pressure ring and the upper end of the pressure cap are respectively provided with sealing rings embedded in the upper and lower ends of the aforementioned filter element, and the cross-section of the aforementioned sealing rings is triangular.

[0010] Furthermore, the aforementioned limiting component is a screw, the upper inner wall of the aforementioned fixing rod is threaded, the shank of the aforementioned screw is screwed into the upper interior of the aforementioned fixing rod and passes through the aforementioned pressure plate, and the nut of the aforementioned screw is pressed against the upper end of the aforementioned pressure plate.

[0011] Furthermore, the aforementioned elastic element is a spring, and it is sleeved on the outside of the upper end of the aforementioned fixed rod.

[0012] Furthermore, a sealing ring is embedded in the inner wall of the perforation at the lower middle part of the aforementioned sealing sleeve, which is in sealing contact with the aforementioned fixing rod.

[0013] Furthermore, the filter cartridge includes a cylindrical body with an open upper end, a detachable sealing cap at the upper end of the cylindrical body, an extended cylindrical body with an open lower end extending downward from the bottom of the filter cartridge, an outer flange at the outer edge of the lower end port of the extended cylindrical body, and the drain pipe passing through the side wall of the extended cylindrical body.

[0014] Furthermore, a drain pipe is connected to the bottom wall of the filter cartridge, and a valve is installed on the drain pipe.

[0015] Furthermore, the top of the filter cartridge is provided with a pressure detection port, and a pressure gauge is installed at the pressure detection port.

[0016] Furthermore, the top of the filter cartridge is provided with an exhaust port, and a T-junction is connected to the exhaust port. The remaining two ports of the T-junction are respectively connected to an exhaust valve and a pressure switch controller. A silencer is connected to the outlet of the exhaust valve, and an alarm is connected to the pressure switch controller and a back-end terminal.

[0017] The beneficial effects of this utility model are: the structure is reasonably designed, and the two ends of the filter element can be sealed and pressed by the cooperation of the elastic floating pressing component and the pressure cap. In addition, it can adapt to the deformation and sinking of the filter element, ensuring that the two ends of the filter element always maintain a good seal and avoiding the problem of filtration failure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the integrated oil filtration device for filter element pressing and displacement compensation of this utility model.

[0019] Figure 2 This is a structural cross-sectional view of the integrated oil filtration device for filter element pressing and displacement compensation of this utility model.

[0020] Figure 3 This is a partial structural schematic diagram of the integrated oil filtration device for filter element compression and displacement compensation of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Filter cartridge; 2. Filter element; 3. Fixing rod; 11. Outer flange; 12. Drain pipe; 13. Pressure gauge; 14. Exhaust valve; 15. Pressure switch controller; 31. Pressure cap; 32. Elastic floating clamping assembly; 33. Filter hole; 321. Limiting element; 322. Sealing sleeve; 323. Elastic element; 324. Pressure plate; 3221. Pressure ring. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Example

[0025] like Figure 1 and 2 As shown, the integrated oil filtration device for filter element compression and displacement compensation in this embodiment includes a filter cylinder 1, a filter element 2, and a hollow fixing rod 3. The fixing rod 3 is vertically arranged in the middle of the bottom wall of the filter cylinder 1. The lower end of the fixing rod 3 is provided with a pressure cap 31. The filter element 2 has a through hole in the middle and is sleeved on the fixing rod 3. The upper end of the fixing rod 3 is equipped with an elastic floating compression assembly 32. The pressure cap 31 seals against the lower end of the filter element 2 and blocks the lower end of the through hole. The elastic floating compression assembly 32 elastically presses against the upper end of the filter element 2 and blocks the upper end of the through hole. The side wall of the filter cylinder 1 is provided with a liquid inlet, and the bottom is provided with a drain pipe communicating with the fixing rod 3. The surface of the fixing rod 3 located in the through hole of the filter element 2 is evenly distributed with filter holes 33.

[0026] In this embodiment of the integrated oil filtration device for filter element compression and displacement compensation, the filter element 2 is a cylindrical filter element component with a through hole in the middle. The fixing rod 3 passes through the through hole of the filter element 2. One end of the through hole is sealed by the pressure cap 31, and the other end is sealed by the elastic floating compression component 32. Furthermore, both ends of the filter element 2 are in close "pressed" contact with the pressure cap 31 and the elastic floating compression component 32, respectively. The elastic floating compression component 32 always applies a downward elastic force to the pressure cap 31 of the filter element 2, which makes both ends of the filter element 2 always keep in a clamped state. Even after the filter element 2 deforms (sinks) due to increased oil absorption and gravity, the elastic floating compression component 32 can still adaptively follow the corresponding end of the filter element 2 to maintain the compressed contact state with the corresponding end (i.e., the upper end) of the filter element 2. That is, it adaptively compensates for the deformation and displacement of the filter element 2. The entire structure is reasonably designed and can ensure that both ends of the filter element always maintain a good seal, avoiding the problem of filtration failure.

[0027] In a preferred embodiment, the elastic floating clamping assembly 32 includes a limiting member 321, a sealing sleeve 322, an elastic member 323, and a pressure plate 324. The upper end of the sealing sleeve 322 is open, and a pressure ring 3221 is provided on the outer edge of the open end. The fixing rod 3 passes through a suitable through hole in the middle of the lower end of the sealing sleeve 322 and is slidably assembled with mutual sealing. The limiting member 321 is detachably mounted on the upper end of the fixing rod 3. The pressure plate 324 is mounted on the limiting member 321. The elastic member 323 is connected between the pressure plate 324 and the lower end of the sealing sleeve 322. The sealing sleeve 322 extends into the through hole of the filter element 2. The filter element 2 is sealed and clamped between the pressure ring 3221 and the pressure cap 31.

[0028] In the above implementation, the elastic element 323 is always under pressure (compression). Therefore, the elastic element 323 will apply an elastic force to the sealing sleeve 322 towards the pressure cap 31, so that the pressure ring 3221 of the outer edge of the open end of the sealing sleeve 322 is pressed against the upper end of the filter element 2, adaptively following the displacement, and maintaining the pressed and sealed state of the end of the filter element 2. The design is very ingenious.

[0029] In this embodiment, a positioning ring with an outer diameter matching the inner diameter of the through hole of the filter element 2 is provided in the middle of the pressure cap 31. The lower end of the filter element 2 can be tightly fitted outside the positioning ring to prevent shaking. At the same time, the sealing sleeve 322 is a cylinder with an outer diameter close to or equal to the inner diameter of the through hole of the filter element 2 to ensure a tight fit between the two.

[0030] As a preferred implementation method, such as Figure 3 As shown, the lower end of the pressure ring 3221 and the upper end of the pressure cap 31 are respectively provided with sealing rings (b in the figure) embedded in the upper and lower ends of the filter element 2, and the cross section of the sealing ring is triangular.

[0031] In the above embodiment, since the pressure ring 3221 and the pressure cap 31 are pressed against both ends of the filter element 2, the protruding sealing ring with a triangular cross section can be embedded into the corresponding end of the filter element 2, thereby improving the sealing performance of the pressure cap 31 and the pressure ring 3221 in contact with the end of the filter element 2.

[0032] In a preferred embodiment, the limiting member 321 is a screw, the upper inner wall of the fixing rod 3 is threaded, the shank of the screw is screwed into the upper interior of the fixing rod 3 and passes through the pressure plate 324, and the nut of the screw is pressed against the upper end of the pressure plate 324.

[0033] In the above implementation scheme, the screw is screwed onto the upper end of the fixing rod 3, making disassembly and assembly convenient. At the same time, the "compression force" on the elastic element 323 can be quickly adjusted by adjusting the screw's screwing in, which means adjusting the sealing performance at both ends of the filter element 2. The design is very simple and practical.

[0034] In this embodiment, the elastic element 323 is a spring of a suitable type, and is sleeved on the outer side of the upper end of the fixing rod 3. The two ends of the spring abut against the bottom wall of the sealing sleeve 322 and the end of the pressure plate 324, respectively. The structure is compact and will not wobble or shift.

[0035] In this embodiment, a sealing ring is embedded in the perforated inner wall of the lower middle part of the sealing sleeve 322, which is in sealing contact with the fixing rod 3. This design allows the sealing sleeve 322 to maintain relative sliding with the fixing rod 3 while also ensuring good relative sealing performance between the two.

[0036] In this embodiment, the filter cartridge 1 includes a cylindrical body with an open upper end, a detachable and sealed upper cover at the upper end of the cylindrical body, and an extended cylindrical body with an open lower end extending downwards from the bottom of the filter cartridge 1. An outer flange 11 is provided on the outer edge of the lower end of the extended cylindrical body, and the drain pipe passes through the side wall of the extended cylindrical body. The filter cartridge 1 adopts a split design, facilitating the removal of the upper cover and the installation of internal components, and making it easy to inspect and maintain. Simultaneously, the design of the outer flange 11 facilitates the installation of the entire filter cartridge 1 on other carriers (specifically, it can be installed on other carriers using multiple bolts passing through the outer flange 11). The design of the extended cylindrical body allows for a more regular arrangement of the drain pipe, achieving partially concealed installation.

[0037] In this embodiment, a drain pipe 12 is connected to the bottom wall of the filter cartridge 1, and a valve is provided on the drain pipe 12. By opening the valve, sewage can be discharged through the drain pipe 12.

[0038] In this embodiment, a pressure detection port is provided at the top of the filter cartridge 1, and a pressure gauge 13 is installed at the pressure detection port. This allows for monitoring and display of the internal pressure of the filter cartridge 1.

[0039] In a preferred embodiment, the top of the filter cartridge 1 is provided with an exhaust port, and a T-junction is connected to the exhaust port. The remaining two ports of the T-junction are respectively connected to an exhaust valve 14 and a pressure switch controller 15. A silencer is connected to the outlet of the exhaust valve 14, and an alarm is connected to the pressure switch controller 15 and a back-end terminal.

[0040] In the above implementation scheme, the gas in the filter cartridge 1 can be released by opening the exhaust valve 14. At the same time, the pressure switch controller 15 can monitor the internal pressure of the filter cartridge 1 in real time and feed the data back to the background terminal. If the pressure exceeds the set value, the alarm can also sound an alarm in real time to remind the staff.

[0041] In this embodiment, the pressure switch controller 15 is an electrical component of the prior art. In actual use, the model can be reasonably configured according to specific needs. The pressure switch controller 15 can be connected to a processor and signal connected to a back-end terminal through the processor, or it can be connected to an alarm through the processor.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An integrated oil filtration device for filter element compression and displacement compensation, characterized in that: The filter includes a filter cartridge (1), a filter element (2), and a hollow fixing rod (3). The fixing rod (3) is vertically arranged in the middle of the bottom wall of the filter cartridge (1). The lower end of the fixing rod (3) is provided with a pressure cap (31). The filter element (2) has a through hole in the middle and is sleeved on the fixing rod (3). The upper end of the fixing rod (3) is equipped with an elastic floating pressing assembly (32). The pressure cap (31) seals against the lower end of the filter element (2) and blocks the lower end of the through hole. The elastic floating pressing assembly (32) elastically presses against the upper end of the filter element (2) and blocks the upper end of the through hole. The side wall of the filter cartridge (1) is provided with a liquid inlet, and the bottom is provided with a drain pipe communicating with the fixing rod (3). The surface of the fixing rod (3) located in the through hole of the filter element (2) is evenly distributed with filter holes (33).

2. The integrated oil filtration device for filter element pressing and displacement compensation according to claim 1, characterized in that: The elastic floating clamping assembly (32) includes a limiting member (321), a sealing sleeve (322), an elastic member (323), and a pressure plate (324). The upper end of the sealing sleeve (322) is open, and a pressure ring (3221) is provided on the outer edge of the open end. The fixing rod (3) passes through the matching through hole in the middle of the lower end of the sealing sleeve (322) and is mutually sealed and slidably assembled. The limiting member (321) is detachably mounted on the upper end of the fixing rod (3). The pressure plate (324) is mounted on the limiting member (321). The elastic member (323) is connected between the pressure plate (324) and the lower end of the sealing sleeve (322). The sealing sleeve (322) extends into the through hole of the filter element (2). The filter element (2) is sealed and clamped between the pressure ring (3221) and the pressure cap (31).

3. The integrated oil filtration device for filter element pressing and displacement compensation according to claim 2, characterized in that: The lower end of the pressure ring (3221) and the upper end of the pressure cap (31) are respectively provided with sealing rings embedded in the upper and lower ends of the filter element (2), and the cross section of the sealing ring is triangular.

4. The integrated oil filtration device for filter element pressing and displacement compensation according to claim 2, characterized in that: The limiting member (321) is a screw. The upper inner wall of the fixing rod (3) is threaded. The shank of the screw is screwed into the upper interior of the fixing rod (3) and passes through the pressure plate (324). The nut of the screw is pressed against the upper end of the pressure plate (324).

5. The integrated oil filtration device for filter element pressing and displacement compensation according to claim 2, characterized in that: The elastic element (323) is a spring and is sleeved on the outside of the upper end of the fixed rod (3).

6. The integrated oil filtration device for filter element pressing and displacement compensation according to claim 2, characterized in that: The sealing sleeve (322) has a sealing ring embedded in the perforated inner wall at the lower middle part, which is in sealing contact with the fixing rod (3).

7. An integrated oil filtration device for filter element pressing and displacement compensation according to any one of claims 1 to 6, characterized in that: The filter cartridge (1) includes a cylinder with an open upper end, and the upper end of the cylinder is detachably sealed with an upper cover. The bottom of the filter cartridge (1) extends downward to form an extension cylinder with an open lower end. The outer edge of the lower end port of the extension cylinder is provided with an outer flange (11), and the drain pipe passes through the side wall of the extension cylinder.

8. An integrated oil filtration device for filter element pressing and displacement compensation according to any one of claims 1 to 6, characterized in that: The bottom wall of the filter cartridge (1) is connected to a drain pipe (12), and a valve is provided on the drain pipe (12).

9. An integrated oil filtration device for filter element pressing and displacement compensation according to any one of claims 1 to 6, characterized in that: The top of the filter cartridge (1) is provided with a pressure detection port, and a pressure gauge (13) is installed at the pressure detection port.

10. An integrated oil filtration device for filter element pressing and displacement compensation according to any one of claims 1 to 6, characterized in that: The top of the filter cartridge (1) is provided with an exhaust port, and a tee is connected to the exhaust port. The remaining two ports of the tee are respectively connected to an exhaust valve (14) and a pressure switch controller (15). The outlet of the exhaust valve (14) is connected to a silencer, and the pressure switch controller (15) is connected to an alarm and a back-end terminal.

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