Anti-blocking oil filter

Abstract

The invention relates to the technical field of oil filters, in particular to an anti-blocking oil filter which comprises a base, a cover plate, a frame, a liquid outlet and a central pipe body, and the central pipe body is communicated with the liquid outlet; the filter assembly comprises an inner mounting plate, an outer mounting plate arranged on the frame, a filter screen and a through hole penetrating through the inner mounting plate and the side wall of the central pipe body; the dredging assembly is used for dredging the filter holes of the filter screen; the filter screen dredging device comprises a filter screen, a dredging assembly and a reset assembly, after the filter screen moves towards the dredging assembly and presses the dredging assembly, the dredging assembly drives the reset assembly to act so that the filter screen can be separated from the dredging assembly, through the arrangement of the dredging assembly and the reset assembly, dredging of the filter screen is achieved, the filter screen is prevented from being blocked, and meanwhile the filter screen is prevented from being blocked. The dredging assembly can drive the reset assembly to act and separate the filter screen from the dredging assembly, so that the oil can enter the filter cavity through the filter screen, and the filtering effect on the oil is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of oil filters, and particularly to an anti-clogging oil filter. Background Art

[0002] Lubricating oil filtering devices are often used in motor vehicles and various mechanical equipment. Usually, metal wire meshes are mainly used as the filtering medium for filtering impurities in substances such as lubricating oil, hydraulic oil, and engine oil. For example, an oil filter disclosed in Patent No. 2014800828941 can easily manage the filtering performance and ensure sufficient strength. The oil filter is arranged in an oil passage, and the oil flowing in the oil passage is filtered by the filter holes of the filter body. Among them, plates having filter holes and through holes with an inner diameter larger than that of the filter holes formed at opposite positions are stacked on top of each other, and the plates are joined together in a state where the entire opening range of the filter holes is arranged within the opening range of the through holes, thereby constituting the filter body.

[0003] In actual use of the above patent, its filter holes are prone to clogging after long-term use, affecting the filtering effect and unable to meet the actual requirements. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned drawbacks in the prior art, and to propose an anti-clogging oil filter.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: Design an anti-clogging oil filter, including a base, a cover plate, a frame connecting the base and the cover plate, and a liquid outlet opened at the center of the base. It further includes a central pipe body, which connects the base and the cover plate and is in communication with the liquid outlet; a filtering component, including inner mounting plates arrayed on the outer wall of the central pipe body, outer mounting plates provided on the frame, a filter screen that is slidably matched with the inner mounting plates and the outer mounting plates and encloses a filtering cavity, and through holes that penetrate the inner mounting plates and the side wall of the central pipe body and are in communication with the filtering cavity; a dredging component, which is arranged in the filtering cavity and is used for dredging the filter holes of the filter screen; a reset component, which is connected to the dredging component. When the filter screen moves towards the dredging component and presses the dredging component, the dredging component drives the reset component to act, so that the filter screen is separated from the dredging component.

[0006] Further, the dredging component includes a column, socket seats spaced on the column, a sliding rod slidably matched with the socket seats, a pressing plate provided at one end of the sliding rod, an insertion rod connected to the pressing plate, and a tip provided at one end of the insertion rod.

[0007] Furthermore, the reset assembly includes a driving part arranged in the socket, a control part arranged in the column, and a pushing part respectively arranged in the inner mounting plate and the outer mounting plate. After being squeezed by the sliding rod, the driving part drives the control part to act, so that the pushing part pushes the filter screen away from the dredging assembly.

[0008] Furthermore, the driving part includes a heating cavity opened in the column, a heat-conducting sleeve embedded in the socket and extending into the heating cavity, a first friction part connected to the heat-conducting sleeve, a second friction part slidably engaged with the first friction part, a first spring connecting the second friction part and the sliding rod, and a second spring connecting the second friction part and the column.

[0009] Furthermore, the control part includes a push plate slidably and sealingly engaged with the inner wall of the heating cavity, a U-shaped plate arranged on the push plate, a third spring connecting the U-shaped plate and the side wall of the heating cavity, fourth springs symmetrically arranged on both sides of the third spring, and a wire connected to the fourth spring.

[0010] Furthermore, the pushing part includes a chute opened in the inner mounting plate and the outer mounting plate, a guide plate arranged at the end of the filter screen and slidably engaged with the chute, a magnetic attraction block arranged on the guide plate, and an electromagnet arranged at the bottom of the chute and cooperating with the magnetic attraction block.

[0011] Furthermore, the pushing part further includes a fifth spring symmetrically arranged between the guide plate and the bottom of the chute.

[0012] Furthermore, a cylinder for mounting the fourth spring is further arranged on the inner wall of the heating cavity.

[0013] Furthermore, the driving part further includes elastic plates arrayed along the outer edge of the second friction part, first protrusions arranged on the elastic plates, and second protrusions arranged on the first friction part at intervals and slidably engaged with the first protrusions.

[0014] The beneficial effects of an anti-clogging oil filter proposed by the present invention are as follows: By providing a dredging assembly and a reset assembly, when the filter screen is clogged, the filter screen moves towards the dredging assembly and presses the dredging assembly, so as to dredge the filter screen and prevent the filter screen from being clogged. At the same time, the dredging assembly can drive the reset assembly to act and separate the filter screen from the dredging assembly, so that the oil can enter the filter cavity through the filter screen, ensuring the filtering effect of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of the dredging component; Figure 4 is Figure 3 Enlarged schematic diagram at position A in; Figure 5 Schematic diagram of the reset component; Figure 6 is Figure 5 Enlarged schematic diagram at position B in; Figure 7 Schematic diagram of the reverse thrust part. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Referring to Figures 1-7 , an anti-blocking oil filter includes a base 1, a cover plate 2, a frame 3 connecting the base 1 and the cover plate 2, and a liquid outlet 101 opened at the center of the base 1. In this embodiment, the frame 3 includes vertical ribs 301 respectively connecting the base 1 and the cover plate 2 at both ends and horizontal ribs 302 connecting the vertical ribs 301, and further includes a central pipe body 4, the central pipe body 4 connecting the base 1 and the cover plate 2 and communicating with the liquid outlet 101; a filtering component 5, including inner mounting plates 501 arrayed on the outer wall of the central pipe body 4, outer mounting plates 502 provided on the frame 3 corresponding to the inner mounting plates 501, a filter screen 504 that is slidably engaged with the inner mounting plates 501 and the outer mounting plates 502 and encloses a filtering cavity 503, and through holes 505 penetrating through the inner mounting plates 501 and the side wall of the central pipe body 4 and communicating with the filtering cavity 503. In this embodiment, two filter screens 504 are arranged in parallel, a buffer cavity is formed between adjacent filtering components 5, and the upper and lower ends of the filter screen 504 are respectively slidably and sealingly engaged with the base 1 and the cover plate 2 to ensure that the oil liquid enters the filtering cavity 503 through the filter screen 504 and ensure the filtering effect; a dredging component 6, which is arranged in the filtering cavity 503 and used to dredge the filtering holes 5041 of the filter screen 504; a reset component 7, the reset component 7 is connected to the dredging component 6. After the filter screen 504 is blocked, the oil pressure in the buffer cavity is greater than the oil pressure in the filtering cavity 503. At this time, the filter screen 504 will move towards the dredging component 6. When the filter screen 504 moves towards the dredging component 6 and presses the dredging component 6, the dredging component 6 drives the reset component 7 to act, so that the filter screen 504 and the dredging component 6 are separated.

[0018] By providing a dredging component 6 and a reset component 7, when the filter screen 504 is blocked, the filter screen 504 moves towards the dredging component 6 and presses the dredging component 6, thereby realizing the dredging of the filter screen 504 and preventing the filter screen 504 from being blocked. At the same time, the dredging component 6 can drive the reset component 7 to act and separate the filter screen 504 from the dredging component 6, so that the oil can enter the filtering chamber 503 through the filter screen 504, ensuring the filtering effect of the oil.

[0019] In an optional embodiment of the present invention, the dredging component 6 includes a column 601, socket seats 602 spaced on the column 601, a sliding rod 603 slidably engaged with the socket seats 602, a pressing plate 604 provided at one end of the sliding rod 603, an inserting rod 605 connected to the pressing plate 604, and a tip 606 provided at one end of the inserting rod 605.

[0020] In an optional embodiment of the present invention, the reset component 7 includes a driving part 701 provided in the socket seat 602, a control part 702 provided in the column 601, and a counter-pushing part 703 separately provided in the inner mounting plate 501 and the outer mounting plate 502. After the driving part 701 is squeezed by the sliding rod 603, it drives the control part 702 to act, so that the counter-pushing part 703 pushes the filter screen 504 away from the dredging component 6.

[0021] In an optional embodiment of the present invention, the driving part 701 includes a heating cavity 7011 opened in the column 601, a heat conducting sleeve 7012 embedded in the socket seat 602 and extending into the heating cavity 7011, a first friction member 7013 connected to the heat conducting sleeve 7012, a second friction member 7014 provided in the socket seat 602 and slidably engaged with the first friction member 7013, a first spring 7015 connecting the second friction member 7014 and the sliding rod 603, and a second spring 7016 connecting the second friction member 7014 and the column 60l. Preferably, the first friction member 7013 in this embodiment is made of tungsten carbide alloy, the second friction member 7014 is made of alumina ceramic, and the length of the heat conducting sleeve 7012 in the socket seat 602 is greater than the length of the first friction member 7013; when the sliding rod 603 pushes the first spring 7015, friction occurs between the first friction member 7013 and the second friction member 7014, and the generated heat enters the heating cavity 7011 through the heat conducting sleeve 7012.

[0022] In an alternative embodiment of the present invention, the control unit 702 includes a push plate 7021 that is slidably and sealingly fitted with the inner wall of the heating chamber 7011, a U-shaped plate 7022 provided on the push plate 7021, a third spring 7023 connecting the U-shaped plate 7022 and the side wall of the heating chamber 7011, fourth springs 7024 symmetrically arranged on both sides of the third spring 7023, and a wire 7025 connected to the fourth spring 7024. In this embodiment, the U-shaped plate 7022 is made of a conductive metal, and the wire 7025 is connected to the reverse pushing portion 703. When the air in the heating chamber 7011 expands due to heat, the push plate 7021 drives the U-shaped plate 7022 to move towards the fourth spring 7024 and causes the two ends of the U-shaped plate 7022 to respectively contact the fourth spring 7024, thereby realizing the conduction and power-on between the control unit 702 and the reverse pushing portion 703.

[0023] In an alternative embodiment of the present invention, the reverse pushing portion 703 includes a chute 7031 formed in the inner mounting plate 501 and the outer mounting plate 502, a guiding plate 7032 provided at the end of the filter screen 504 and slidably fitted with the chute 7031, a magnetic attraction block 7033 provided on the guiding plate 7032, and an electromagnet 7034 provided at the bottom of the chute 7031 and cooperating with the magnetic attraction block 7033. In this embodiment, the control unit 702, the electromagnet 7034, and an external power source are connected in series through the wire 7025. After the electromagnet 7034 is powered on, it repels the magnetic attraction block 7033. When the U-shaped plate 7022 contacts the fourth spring 7024, the electromagnet 7034 is powered on with the external power source, so that the electromagnet 7034 repels the magnetic attraction block 7033 and drives the filter screen 504 to separate from the dredging assembly 6. At this time, the oil can enter the filtering chamber 503 through the filter screen 504, and the oil pressure in the buffer chamber and the oil pressure in the filtering chamber 503 tend to be balanced.

[0024] In an alternative embodiment of the present invention, the reverse pushing portion 703 further includes fifth springs 7035 symmetrically arranged between the guiding plate 7032 and the bottom of the chute 7031.

[0025] In an alternative embodiment of the present invention, a cylinder 7026 for mounting the fourth spring 7024 is further provided on the inner wall of the heating chamber 7011. The setting of the cylinder 7026 can position the movement of the fourth spring 7024, prevent the fourth spring 7024 from shifting after being squeezed by the U-shaped plate 7022, and ensure the response speed of the control unit 702 and the control effect on the reverse pushing portion 703.

[0026] In an alternative embodiment of the present invention, the driving part 701 further includes elastic plates 7017 arrayed along the outer edge of the second friction member 7014, first protrusions 7018 provided on the elastic plates 7017, and second protrusions 7019 spaced apart on the first friction member 7013 and slidably engaged with the first protrusions 7018. Preferably, the second protrusions 7019 in this embodiment are made of tungsten carbide alloy, the first protrusions 7018 are made of alumina ceramic, and the elastic plates 7017 are arc-shaped metal plates; when the sliding rod 603 pushes the first spring 7015, the first friction member 7013 and the second friction member 7014 slide relative to each other, driving friction between the first protrusions 7018 and the first protrusions 7018, thereby quickly generating heat.

[0027] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An anti-clogging oil filter, comprising a base (1), a cover plate (2), a frame (3) connecting the base (1) and the cover plate (2), and a liquid outlet (101) opened at the center of the base (1), characterized in that: It further includes a central tube body (4) which connects the base (1) and the cover plate (2) and is communicated with the liquid outlet (101); a filtering assembly (5), including an inner mounting plate (501) arrayed on the outer wall of the central tube body (4), an outer mounting plate (502) arranged on the frame (3), a filter screen (504) which is slidably matched with the inner mounting plate (501) and the outer mounting plate (502) and encloses a filtering cavity (503), and a through hole (505) which penetrates through the inner mounting plate (501) and the side wall of the central tube body (4) and is communicated with the filtering cavity (503); a dredging assembly (6) which is arranged in the filtering cavity (503) and is used for dredging the filtering holes (5041) of the filter screen (504); a resetting assembly (7), the resetting assembly (7) is connected with the dredging assembly (6), when the filter screen (504) moves towards the dredging assembly (6) and presses the dredging assembly (6), the dredging assembly (6) drives the resetting assembly (7) to act so that the filter screen (504) is separated from the dredging assembly (6).

2. The oil filter according to claim 1, wherein: The dredging assembly (6) includes a column (601), socket seats (602) spaced on the column (601), a sliding rod (603) slidably matched with the socket seats (602), a pressing plate (604) arranged at one end of the sliding rod (603), a plug rod (605) connected with the pressing plate (604), and a tip (606) arranged at one end of the plug rod (605).

3. The oil filter according to claim 2, wherein: The resetting assembly (7) includes a driving part (701) arranged in the socket seat (602), a control part (702) arranged in the column (601), and anti-pushing parts (703) respectively arranged in the inner mounting plate (501) and the outer mounting plate (502). After the driving part (701) is extruded by the sliding rod (603), the driving part (701) drives the control part (702) to act so that the anti-pushing parts (703) push the filter screen (504) away from the dredging assembly (6).

4. The oil filter according to claim 3, characterized in that: The driving part (701) includes a heating cavity (7011) opened in the column (601), a heat conducting sleeve (7012) embedded in the socket seat (602) and extending into the heating cavity (7011), a first friction part (7013) connected with the heat conducting sleeve (7012), a second friction part (7014) slidably matched with the first friction part (7013), a first spring (7015) connecting the second friction part (7014) and the sliding rod (603), and a second spring (7016) connecting the second friction part (7014) and the column (601).

5. The oil filter according to claim 4, wherein: The control unit (702) includes a push plate (7021) that is slidably and sealingly fitted to the inner wall of the heating chamber (7011), a U-shaped plate (7022) provided on the push plate (7021), a third spring (7023) connecting the U-shaped plate (7022) and the side wall of the heating chamber (7011), fourth springs (7024) symmetrically arranged on both sides of the third spring (7023), and a wire (7025) connected to the fourth spring (7024).

6. The oil filter according to claim 5, wherein: The reverse pushing unit (703) includes a chute (7031) formed in the inner mounting plate (501) and the outer mounting plate (502), a guiding plate (7032) provided at the end of the filter screen (504) and slidably fitted to the chute (7031), a magnetic attraction block (7033) provided on the guiding plate (7032), and an electromagnet (7034) provided at the bottom of the chute (7031) and cooperating with the magnetic attraction block (7033).

7. The oil filter according to claim 6, wherein: The reverse pushing unit (703) further includes fifth springs (7035) symmetrically arranged between the guiding plate (7032) and the bottom of the chute (7031).

8. The oil filter according to claim 5, characterized in that: A cylinder body (7026) for mounting the fourth spring (7024) is further provided on the inner wall of the heating chamber (7011).

9. The oil filter according to claim 4, characterized in that: The driving unit (701) further includes elastic plates (7017) arrayed along the outer edge of the second friction member (7014), first protrusions (7018) provided on the elastic plates (7017), and second protrusions (7019) provided at intervals on the first friction member (7013) and slidably cooperating with the first protrusions (7018).

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