Double-layer filter element of automobile filter

Abstract

The utility model discloses a double-layer filter element of an automobile filter, which belongs to the technical field of filters and comprises a shell and a first mounting frame, a connecting ring is fixedly mounted at the top end of the shell, a shell cover is fixedly mounted on the inner side of the connecting ring, a first filter cartridge for primary filtering is arranged in the shell, and a bypass valve component is arranged on the inner side of the shell. A filter assembly used for secondary filtering is arranged in the first mounting frame, the outer end of the bypass valve assembly is sleeved with the filter assembly, when the first filter cylinder is blocked due to the service life and cannot be filtered, engine oil can directly eject the bypass valve assembly to enter the filter assembly, and unfiltered engine oil can be prevented from entering an engine through filtering of the second filter cylinder; meanwhile, when the engine oil is low in temperature and thick, the engine oil can sequentially jack the bypass valve assembly and the second valve element to be directly discharged, and therefore it can be guaranteed that the engine oil can be supplied to the engine at the low temperature in a full-flow mode while secondary filtering is conducted on the engine oil.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field more specifically, relate to the automobile filter double -layer filter core. BACKGROUND

[0002] The automobile filter refers to the oil filter, and the oil filter is a component for the automobile engine, which mainly functions to filter impurities and pollutants in the circulating process of the oil and keep the inside of the engine clean. The oil filter is usually composed of a filter core and a filter bed, and the filter core is made of fiber material and can effectively filter out particulate matters and pollutants in the oil, thereby protecting various components of the engine from wear and damage, helping the normal operation of the engine and improving the performance and fuel economy of the automobile.

[0003] The oil filter provided in Chinese patent authorization announcement No. CN219865189U is arranged in a commonly used filter cartridge and divides the inner cavity of the commonly used filter cartridge into a first filter cavity and a second filter cavity by a standby filter disc. The other end of the commonly used filter cartridge is provided with a bypass hole communicating the oil inlet cavity of the oil filter and the second filter cavity. When the commonly used filter cartridge is blocked and fails to filter the oil, the unfiltered oil in the oil inlet cavity pushes away the hydraulic valve and enters the second filter cavity through the bypass hole, and then flows into the first filter cavity after being filtered by the standby filter disc, and then flows out through the oil outlet hole via the oil outlet pipe, so as to ensure the normal operation of the oil filtering work. Compared with the prior art, the oil filter has a standby filtering function, prolongs the maintenance period, and can ensure the normal filtering of the oil when the commonly used filtering function fails, thereby avoiding damage to the engine caused by the failure of the commonly used filtering function.

[0004] The filter on the market currently is provided with a bypass valve at the bottom. In addition to the function of directly discharging the oil without filtering when the filter cartridge is blocked, the bypass valve can also directly discharge the oil when the engine is just started and the oil is too viscous to normally pass through the filter cartridge. Therefore, the device in the above scheme directly sets a standby filter paper on the bypass valve. When the vehicle is just started and the oil is too viscous, the oil cannot pass through the commonly used filter paper and the standby filter paper, which reduces the oil supply and causes insufficient lubrication of the engine and damage.

[0005] Therefore, the automobile filter double -layer filter core is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] 1. Technical problem to be solved

[0007] The automobile filter double -layer filter core can improve the problems in the related art, that is, directly setting a standby filter paper on the bypass valve. When the vehicle is just started and the oil is too viscous, the oil cannot pass through the commonly used filter paper and the standby filter paper, which reduces the oil supply and causes insufficient lubrication of the engine and damage.

[0008] To solve the above problems, the utility model adopts the following technical scheme.

[0009] The embodiment of the application provides a double-layer filter element of an automobile filter, which comprises a shell and a mounting frame one, the top end of the shell is fixedly provided with a connecting ring, the inner side of the connecting ring is fixedly provided with a shell cover, the inside of the shell is provided with a filter cartridge one for primary filtration, the inner side of the shell is provided with a bypass valve assembly, the inside of the mounting frame one is provided with a filter assembly for secondary filtration, the filter assembly comprises a mounting frame two, the outer end of the mounting frame two is provided with a filter cartridge two, the filter cartridge two performs secondary filtration on the oil flowing out of the bypass valve assembly.

[0010] The technical scheme has at least the following technical effects:

[0011] The filter assembly is arranged at the outer end of the bypass valve assembly, when the filter cartridge one reaches the service life and is blocked and cannot filter, the oil directly pushes open the bypass valve assembly and enters the inside of the filter assembly, the unfiltered oil can be prevented from entering the engine through the filtration of the filter cartridge two, and when the oil temperature is low and the oil is relatively viscous, the oil can sequentially push open the bypass valve assembly and the valve core two and be discharged directly, so that the oil can be supplied to the engine at full flow when the oil temperature is low while the oil is secondary filtered.

[0012] In some embodiments, a plurality of oil inlets are formed in the outer end of the shell cover, an oil outlet is formed in the outer end of the shell cover, the filter cartridge one is arranged at the outer end of the mounting frame one, the oil inlets are connected with the gaps between the shell, the filter cartridge one and the gaps, and the oil outlet is connected with the inside of the filter cartridge one.

[0013] In some embodiments, a rubber ring is fixedly arranged at the bottom end of the connecting ring, the mounting frame one is arranged in the inside of the shell, and a bottom cover is fixedly arranged at the bottom end of the mounting frame one.

[0014] In some embodiments, the bypass valve assembly comprises a fixing frame and a spring one, the fixing frame is fixedly arranged at the top of the bottom cover, a butt plate is fixedly arranged in the inside of the fixing frame, one end of the spring one abuts against the butt plate, the other end of the spring one is fixedly connected with a valve core one, and the valve core one is slidably connected with the inner wall of the fixing frame.

[0015] In some embodiments, the filter assembly further comprises a plurality of connecting plates, the mounting frame two is arranged outside the fixing frame and is fixedly arranged at the top end of the bottom cover, the connecting plates are fixedly arranged at the top end of the mounting frame two, and a top plate is fixedly arranged at the top end of the connecting plates.

[0016] In some embodiments, the filter assembly further comprises a valve core two, the mounting frame two top is provided with a oil leakage hole, a spring two is installed between the valve core two and the top plate, the valve core two is abutted in the oil leakage hole by the force of the spring two to form a seal.

[0017] In some embodiments, the valve core two bottom end is fixedly installed with a plurality of annularly distributed magnetic strips, both sides of the magnetic strips are fixedly installed with a plurality of magnetic sheets, the magnetic strips and the magnetic sheets move with the valve core two, and the magnetic strips and the magnetic sheets are used for absorbing iron filings in machine oil flowing out of the oil leakage hole. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structure schematic view of the utility model;

[0019] Figure 2 It is an explosion structure schematic view of the utility model;

[0020] Figure 3 It is a local sectional structure schematic view of the utility model;

[0021] Figure 4 It is a bypass valve assembly structure schematic view of the utility model;

[0022] Figure 5 It is a filter assembly structure schematic view of the utility model;

[0023] Figure 6 It is a filter assembly sectional structure schematic view of the utility model;

[0024] Figure 7 It is a magnetic strip and magnetic sheet structure schematic view of the utility model.

[0025] Explanation of Marked Numbers in the Drawing:

[0026] 1, shell;

[0027] 2, connecting ring;

[0028] 3, shell cover;

[0029] 4, oil inlet;

[0030] 5, oil outlet;

[0031] 6, rubber ring;

[0032] 7, mounting frame one;

[0033] 8, filter cartridge one;

[0034] 9, bypass valve assembly; 91, fixing frame; 92, abutment plate; 93, spring one; 94, valve core one;

[0035] 10, bottom cover;

[0036] 11. filter assembly; 111. filter cartridge two; 112. mounting frame two; 113. top plate; 114. connecting plate; 115. spring two; 116. valve core two; 117. magnetic strip; 118. magnetic sheet. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] Please refer to Figures 1-7 The automobile filter double-layer filter element comprises a shell 1, a mounting frame one 7, a connecting ring 2 fixedly installed at the top end of the shell 1, a shell cover 3 fixedly installed at the inner side of the connecting ring 2, a filter cartridge one 8 arranged in the shell 1 and used for primary filtration, a bypass valve assembly 9 arranged at the inner side of the shell 1, and a filter assembly 11 arranged in the mounting frame one 7 and used for secondary filtration.

[0039] A plurality of oil inlets 4 are formed at the outer end of the shell cover 3, and an oil outlet 5 is formed at the outer end of the shell cover 3. The filter cartridge one 8 is sleeved at the outer end of the mounting frame one 7. The oil inlets 4 are connected with the gaps between the shell 1 and the filter cartridge one 8. The oil outlet 5 is connected with the inside of the filter cartridge one 8.

[0040] A rubber ring 6 is fixedly installed at the bottom end of the connecting ring 2. The mounting frame one 7 is installed in the shell 1. A bottom cover 10 is fixedly installed at the bottom end of the mounting frame one 7.

[0041] In the scheme, the connecting ring 2 is fixed at the top of the shell 1 and is mainly used for being installed on an automobile and can be fixed by using bolts or threaded connections. The shell cover 3 is fixed at the inner side of the connecting ring 2. A plurality of annular equidistantly distributed oil inlets 4 are formed on the shell cover 3 and are mainly used for allowing oil to enter. An oil outlet 5 is formed at the outer end of the shell cover 3 close to the center and is mainly used for discharging filtered oil. The rubber ring 6 is clamped at the bottom of the connecting ring 2 and is made of rubber. The edge of the rubber ring 6 is thin. The rubber ring 6 is connected with the oil outlet 5, so that the oil inlets 4 and the oil outlet 5 are separated. The oil outlet 5 is only connected with the inside of the filter cartridge one 8. The oil inlets 4 are connected with the gaps between the filter cartridge one 8 and the inner wall of the shell 1.

[0042] The rubber ring 6 is mainly used as a one-way valve. The edge of the rubber ring 6 is bent upwards and tightly attached to the bottom of the cover 3. Only when the oil pump is started, the oil entering the oil inlet 4 will push the edge of the rubber ring 6 to the gap between the filter cartridge 8 and the inner wall of the shell 1. This technology is the prior art.

[0043] The mounting bracket 7 is installed in the inside of the shell 1, and the filter cartridge 8 is sleeved on the outside of the mounting bracket 7. The bottom cover 10 is fixedly installed at the bottom of the mounting bracket 7, and the bypass valve assembly 9 is installed on the bottom cover 10. The filter assembly 11 is installed on the outside of the bypass valve assembly 9, that is, the inside of the filter cartridge 8. The oil entering the shell 1 through the oil inlet 4 will first enter the inside of the filter cartridge 8 from the outside of the filter cartridge 8, and then the filtered oil of the filter cartridge 8 will be directly discharged from the oil outlet 5. When the filter cartridge 8 reaches the service life and is blocked, the excessive pressure in the inside will force the oil to push the bypass valve assembly 9 to enter the filter assembly 11. The unfiltered oil can be prevented from entering the engine through the filtration of the filter cartridge 2 111. The filter assembly 11 can have a secondary filtering effect, giving the owner sufficient time to replace the new oil filter. At the same time, when the oil temperature is low and the oil is relatively viscous, the oil can push open the bypass valve assembly 9 and the valve core 2 116 in turn and be discharged directly, so that the oil can be supplied to the engine at full flow when the temperature is low while being filtered twice.

[0044] Please refer to Figure 3 and Figure 4 The bypass valve assembly 9 includes a fixed bracket 91 and a spring 1 93. The fixed bracket 91 is fixedly installed at the top of the bottom cover 10. The fixed bracket 91 has an abutting plate 92 fixedly installed in the inside. One end of the spring 1 93 abuts against the abutting plate 92, and the other end of the spring 1 93 is fixedly connected with a valve core 1 94. The valve core 1 94 is in sliding connection with the inner wall of the fixed bracket 91.

[0045] The bypass valve assembly 9 in the scheme is mainly opened when the filter cartridge 8 is blocked or the oil temperature is low and viscous. The fixed bracket 91 is fixed on the bottom cover 10 and is in communication with the bottom cover 10. The abutting plate 92 is fixed at the top end of the inside of the fixed bracket 91. The valve core 1 94 is slidingly installed in the inside of the fixed bracket 91. The spring 1 93 is fixed between the valve core 1 94 and the abutting plate 92. The force of the spring 1 93 can push the valve core 1 94 downwards to seal the connection between the fixed bracket 91 and the bottom cover 10. When the pressure in the inside of the shell 1 is too large, the oil will push open the valve core 1 94 to flow into the inside of the filter assembly 11, thereby preventing insufficient oil supply when the filter cartridge 8 is blocked.

[0046] Please refer to Figures 4-7The filter assembly 11 further comprises a plurality of connecting plates 114, the mounting rack two 112 is sleeved outside the fixed rack 91, and the mounting rack two 112 is fixedly installed at the top end of the bottom cover 10. The plurality of connecting plates 114 are all fixedly installed at the top end of the mounting rack two 112, and the top end of the connecting plate 114 is fixedly installed with a top plate 113.

[0047] The filter assembly 11 further comprises a valve core two 116, and the mounting rack two 112 is provided with a oil leakage hole in the top portion. The spring two 115 is installed between the valve core two 116 and the top plate 113, and the valve core two 116 is abutted against the oil leakage hole to form a seal under the action force of the spring two 115.

[0048] The valve core two 116 is fixedly installed with a plurality of annularly distributed magnetic strips 117 at the bottom end, and the two sides of the magnetic strip 117 are both fixedly installed with a plurality of magnetic sheets 118. The magnetic strip 117 and the magnetic sheet 118 move along with the valve core two 116, and the magnetic strip 117 and the magnetic sheet 118 are used for absorbing the iron filings in the machine oil flowing out of the oil leakage hole.

[0049] The filter assembly 11 further comprises a valve core two 116, and the mounting rack two 112 is provided with a oil leakage hole in the top portion. The spring two 115 is installed between the valve core two 116 and the top plate 113, and the valve core two 116 is abutted against the oil leakage hole to form a seal under the action force of the spring two 115.

[0050] When the oil temperature is sufficient, but the filter cartridge one 8 reaches the service life and is blocked, the machine oil can be filtered again through the filter cartridge two 111. It is worth mentioning that the filter cartridge two 111 can only be used as a temporary machine filter, and only in order to give the owner sufficient time to replace a new one.

[0051] In the bottom of the valve core two 116 fixed a plurality of annular equidistant magnetic strip 117, on both sides of each magnetic strip 117 is fixed a plurality of magnetic sheet 118, magnetic sheet 118 and magnetic strip 117 have magnetic properties, when the oil is thick will be directly discharged, at this time the magnetic strip 117 and magnetic sheet 118 will follow the valve core two 116 at the same time to move up, through the oil drain hole out of the oil will be in contact with the magnetic strip 117 and magnetic sheet 118, at this time the magnetic strip 117 and magnetic sheet 118 can play a role in adsorbing the iron filings in the oil, thereby reducing the impurities in the oil, play a role in three times filtering of oil.

[0052] At the same time when the filter cartridge one 8 is blocked, it also means that the filter cartridge one 8 on the outer surface full of impurities, at this time the oil top open bypass valve assembly 9 into the filter cartridge two 111 inside, the filter cartridge one 8 surface impurities will be washed into the filter cartridge two 111, and the filter cartridge two 111 in filtering, the magnetic strip 117 and magnetic sheet 118 can absorb the iron filings in the oil, thereby reducing the filter pressure of filter cartridge two 111.

[0053] Working principle: when the device in filtering, through the oil inlet 4 into the shell 1 of the oil, first from the filter cartridge one 8 of the outer package into the filter cartridge one 8 inside, then through the filter cartridge one 8 filtered oil will be directly from the oil outlet 5 is discharged;

[0054] When the filter cartridge one 8 reaches the service life is blocked, the internal excessive pressure will force the oil to open bypass valve assembly 9 into the filter assembly 11, at this time the oil can be through the filter cartridge two 111 is two times filtering, at the same time the filter cartridge one 8 surface impurities into the filter cartridge two 111 is blocked by the magnetic strip 117 and magnetic sheet 118 in the oil of iron filings, reduce the filter pressure of filter cartridge two 111;

[0055] When the oil is more viscous, can't through the filter cartridge one 8 will open bypass valve assembly 9, then the valve core two 116 will be opened, so that it can be directly into the filter cartridge one 8, and then through the oil outlet 5 is directly discharged, at this time the magnetic strip 117 and magnetic sheet 118 can play a role in adsorbing the iron filings in the oil, thereby reducing the impurities in the oil, play a role in three times filtering of oil.

Claims

1. A double-layer filter element for an automobile filter, comprising a shell (1) and a mounting frame I (7), a connecting ring (2) is fixedly installed at the top end of the shell (1), a shell cover (3) is fixedly installed on the inner side of the connecting ring (2), a filter cartridge I (8) for primary filtration is arranged in the shell (1), characterized in that a bypass valve assembly (9) is arranged on the inner side of the shell (1), and a filter assembly (11) for secondary filtration is arranged in the mounting frame I (7); the filter assembly (11) comprises a mounting frame II (112), the mounting frame II (112) is sleeved with a filter cartridge II (111) at the outer end, and the filter cartridge II (111) performs secondary filtration on the oil flowing out of the bypass valve assembly (9).

2. The dual-layer filter cartridge of claim 1, wherein: a plurality of oil inlets (4) are formed at the outer end of the shell cover (3), and an oil outlet (5) is formed at the outer end of the shell cover (3), the filter cartridge I (8) is sleeved at the outer end of the mounting frame I (7), the oil inlets (4) are connected with the gaps between the shell (1) and the filter cartridge I (8), and the oil outlet (5) is connected with the inside of the filter cartridge I (8).

3. The dual-layer filter cartridge of claim 1, wherein: a rubber ring (6) is fixedly installed at the bottom end of the connecting ring (2), the mounting frame I (7) is installed in the shell (1), and a bottom cover (10) is fixedly installed at the bottom end of the mounting frame I (7).

4. The dual-layer filter cartridge of claim 3, wherein: the bypass valve assembly (9) comprises a fixed frame (91) and a spring I (93), the fixed frame (91) is fixedly installed at the top of the bottom cover (10), the fixed frame (91) is fixedly installed with an abutting plate (92) inside, one end of the spring I (93) abuts against the abutting plate (92), the other end of the spring I (93) is fixedly connected with a valve core I (94), and the valve core I (94) is in sliding connection with the inner wall of the fixed frame (91).

5. The dual-layer filter cartridge of claim 4, wherein: the filter assembly (11) further comprises a plurality of connecting plates (114), the mounting frame II (112) is sleeved outside the fixed frame (91), and the mounting frame II (112) is fixedly installed at the top end of the bottom cover (10), a plurality of the connecting plates (114) are fixedly installed at the top end of the mounting frame II (112), and a top plate (113) is fixedly installed at the top end of the connecting plate (114).

6. The dual-layer filter cartridge of claim 5, wherein: the filter assembly (11) further comprises a valve core II (116), the top of the mounting frame II (112) is provided with a oil leakage hole, a spring II (115) is arranged between the valve core II (116) and the top plate (113), and the valve core II (116) is sealed in the oil leakage hole by the action force of the spring II (115).

7. The dual-layer filter cartridge of claim 6, wherein: a plurality of annular magnetic strips (117) are fixedly installed at the bottom end of the valve core II (116), a plurality of magnetic sheets (118) are fixedly installed on both sides of the magnetic strips (117), the magnetic strips (117) and the magnetic sheets (118) move with the valve core II (116), and the magnetic strips (117) and the magnetic sheets (118) are used for absorbing iron filings in the oil flowing out of the oil leakage hole.

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