Automobile oil filter with combined structure

Abstract

The invention relates to the technical field of filters, in particular to an automobile oil filter with a combined structure, which comprises a filtering structure, a control pipe, a capturing and transferring mechanism, a recycling mechanism and an oil return structure, the filtering structure comprises a tank body and a hollow filtering column, a cover body is arranged at the opening end of the tank body, and the hollow filtering column is coaxially arranged in the tank body; the control pipe is arranged in the middle of the cover body, and an oil inlet, an oil outlet and an oil return port are formed in the control pipe; the capturing and transferring mechanism comprises a capturing structure and a transferring driving structure, the capturing structure is arranged in the hollow filter column, and the transferring driving structure is arranged in the axis direction of the hollow filter column; the recovery mechanism comprises an adsorption structure and an electromagnetic valve; the electromagnetic valve is communicated with the oil outlet and the adsorption structure; the oil return structure communicates with the adsorption structure and the oil return opening; the filtering structure, the control pipe, the capturing and transferring mechanism, the recycling mechanism and the oil return structure are arranged, so that impurities are transferred out of a filtering path of engine oil, and the flowing efficiency of the engine oil is kept unchanged.

Description

Technical Field

[0001] The invention relates to the technical field of filters, and in particular to an automobile oil filter with a combined structure. Background Art

[0002] As an important component in the lubrication system of automobile engines, the performance and efficiency of oil filters have a vital impact on the stable operation and service life of the engine. Traditional oil filters usually adopt a single filtering structure, that is, the oil is filtered through the filter element to remove impurities and particulate matter. However, this single filtering structure has exposed some problems in practical applications, such as easy clogging of the filter element, low filtering efficiency, and frequent replacement. These problems not only increase maintenance costs, but may also have a negative impact on the lubrication effect of the engine.

[0003] Patent announcement number CN118705029B discloses an oil filter with a high filtration mechanism for an internal combustion engine. Before the oil enters the oil filter, the oil first enters the steel sleeve from the oil inlet nozzle, then pushes open the outer edge of the rubber pad, and then enters the outer periphery of the sponge. Then the sponge and the filter cylinder cooperate to complete the filtration of most of the iron filings and impurities in the oil. Here, when there are many impurities in a single steel sleeve, the motor can be started, and then the motor output shaft drives the turntable to rotate, so that the new steel sleeve replaces the old steel sleeve position to ensure the oil filtration effect, and then cooperates with the filtration function in the outer shell to achieve a high filtration effect, supply each component with clean oil, and extend the life of these components.

[0004] Although the above scheme reduces the impurity content of the oil entering the oil filter and alleviates the filtering pressure of the oil filter, after the oil passes through the sponge for a long time, the impurities attached to the sponge will gradually increase, and these impurities will continue to remain in the flow path of the oil if the sponge is not replaced, causing the resistance of the oil passing through the sponge to gradually increase, and the filtering efficiency of the oil will be reduced. Summary of the invention

[0005] In view of the above problems, a combined structure of an automobile oil filter is provided, which transfers impurities out of the oil filtering path by setting a filtering structure, a control tube, a capture transfer mechanism, a recovery mechanism and an oil return structure, thereby achieving unchanged flow efficiency of the oil.

[0006] In order to solve the problems of the prior art, the present invention provides a combined structure automobile oil filter, comprising a filtering structure, a control pipe, a capture transfer mechanism, a recovery mechanism and an oil return structure; the filtering structure comprises a tank body and a hollow filter column, the open end of the tank body is provided with a cover body, the hollow filter column is coaxially arranged inside the tank body, and the two ends of the hollow filter column are respectively abutted with the tank body and the cover body; the control pipe is arranged in the middle of the cover body, and one end of the control pipe is inserted into the tank body and abuts with the end of the hollow filter column, an oil inlet, an oil outlet and an oil return port are provided on the control pipe, and the oil inlet and the oil outlet are coaxially arranged; the capture transfer mechanism comprises a capture structure and a transfer drive structure, the capture structure is arranged in the hollow filter column, the transfer drive structure is arranged along the axial direction of the hollow filter column, and the transfer drive structure is connected to the hollow filter column; the recovery mechanism comprises an adsorption structure and an electromagnetic valve, the adsorption structure is arranged on one side of the control pipe, the electromagnetic valve is arranged on one side of the adsorption structure, and the electromagnetic valve is connected with the oil outlet and the adsorption structure; the oil return structure is arranged on the other side of the adsorption structure, and the oil return structure is connected with the adsorption structure and the oil return port.

[0007] Preferably, the capturing structure comprises a capturing plate and a rotating connection structure; the capturing plate is coaxially arranged with the hollow filter column, and a plurality of filter holes are provided on the capturing plate; the rotating connection structure comprises a fixed plate and a plurality of connecting arms, the fixed plate is arranged in parallel with the lower end of the capturing plate, and the fixed plate is connected to the transfer drive structure, an annular groove is provided on the lower surface of the fixed plate, a plurality of connecting arms are arranged around the fixed plate at equal intervals, one end of the connecting arm is connected to the capturing plate, and a limiting column is provided at the other end of the connecting arm, one end of the limiting column is connected to the connecting arm, and the other end of the limiting column is slidably arranged in the annular groove.

[0008] Preferably, the capture structure further comprises a plurality of partitions, which are arranged at equal intervals on the upper surface of the capture plate, and the partitions are parallel to the central axis of the capture plate.

[0009] Preferably, the adsorption structure includes a recovery box and a sponge; a first connection port and a second connection port are respectively provided on both sides of the recovery box, the first connection port is connected to the solenoid valve, and the second connection port is connected to the oil return structure; the sponge is arranged inside the recovery box.

[0010] Preferably, the adsorption structure also includes a rotating shaft and a turntable; the rotating shaft is arranged in the middle of the recycling box, both ends of the rotating shaft are connected to the recycling box, and one end of the rotating shaft extends out of the recycling box; the middle of the turntable is connected to the rotating shaft, and a number of installation bins are evenly spaced inside the turntable, each installation bin is filled with sponge, and a first opening and a second opening are respectively opened on both sides of each installation bin.

[0011] Preferably, the adsorption structure also includes a sliding connection structure, which is arranged between the rotating shaft and the turntable, and the sliding connection structure includes a sliding sleeve, a guide slider and a first spring; the sliding sleeve is arranged on the rotating shaft, and the sliding sleeve is fixedly connected to the turntable; the guide slider is arranged on the inner wall of the sliding sleeve, and the guide slider is parallel to the rotating shaft, and a sliding groove cooperating with the guide slider is opened on the surface of the rotating shaft; the first spring is arranged on the rotating shaft, and the two ends of the first spring are respectively abutted against the sliding sleeve and the inner wall of the recovery box.

[0012] Preferably, the recovery mechanism also includes a plurality of first unidirectional flow structures, which are respectively arranged at the second openings of a plurality of installation bins, and the first unidirectional flow structures include a first shell, a closing block, a second shell, a first guide column and a second spring; one end of the first shell is connected to the second opening, and a plurality of oil drain ports are evenly spaced on the surface of the second shell; the closing block is arranged in the second shell; the second shell is arranged on one side of the first shell, and the second shell is threadedly connected to the first shell; the first guide column is arranged in the second shell, one end of the first guide column is connected to the second shell, and the other end of the first guide column passes through the middle part of the closing block; the second spring is sleeved on the first guide column, and the two ends of the second spring are respectively abutted against the closing block and the second shell.

[0013] Preferably, the oil return structure includes a second one-way flow structure and an oil return pipe; the second one-way flow structure is arranged at the oil return port; and both ends of the oil return pipe are respectively connected to the second connecting port and the second one-way flow structure.

[0014] Preferably, the inner diameter of the capture disk is the same as the inner diameter of the hollow filter column, and the edge of the capture disk has a smooth transition.

[0015] Preferably, the oil return port is located at the lower end of the oil inlet and the oil outlet.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a filtering structure, a control tube, a capture and transfer mechanism, a recovery mechanism and an oil return structure. The engine oil is initially filtered in the hollow filter column. The hollow filter column effectively intercepts most of the impurities, reduces the filtering burden of the subsequent filter element, and prolongs the service life of the filter element. When the impurities in the hollow filter column accumulate too much and cause the oil passing resistance to increase, the transfer drive structure in the capture and transfer mechanism drives the capture structure to move upward along the axial direction of the hollow filter column to capture the impurities, thereby ensuring the continuous smooth flow of the oil filtering path and avoiding the increase of the oil flow resistance caused by the accumulation of impurities. When the capture structure moves to the same height as the oil inlet and the oil outlet, the newly-inflowing engine oil pushes the impurities on the capture structure to flow toward the recovery mechanism under the action of pressure, and most of the impurities in the engine oil are captured by the adsorption structure, while the engine oil flows back to the control tube through the oil return structure, thereby transferring the impurities out of the oil filtering path and achieving the unchanged flow efficiency of the engine oil.

[0018] 2. The present invention provides a capture plate and a rotating connection structure. When the transfer drive structure is started and the capture plate is driven to move along the axis of the hollow filter column, the capture plate drives the impurities in the hollow filter column to move together through physical contact, and the engine oil passes through the filter holes on the capture plate, which effectively reduces the resistance of the capture plate when it moves, so that the capture plate can drive the impurities to move more smoothly. When the capture plate moves to the same height as the oil inlet and the oil outlet, the newly flowing engine oil will push the impurities on the capture plate to flow toward the oil outlet. In this process, some impurities that are difficult to be directly driven are transmitted to the capture plate through the force of the engine oil, and then the limit column is driven to slide in the annular groove through the connecting arm, causing the capture plate to rotate around its own axis. The rotating action of the capture plate enables the impurities thereon to contact the engine oil at different angles. This change increases the interaction force between the engine oil and the impurities, thereby increasing the possibility that the impurities that were originally difficult to be taken away are carried to the recovery structure by the engine oil, thereby improving the efficiency of transferring the impurities to the recovery structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a stereoscopic diagram of an automobile oil filter with a combined structure.

[0020] Figure 2 The utility model is a top view of an automobile oil filter of a combined structure of the present invention.

[0021] Figure 3 The present invention is a three-dimensional cross-sectional view of a combined structure automobile oil filter.

[0022] Figure 4 It is a stereoscopic diagram of a capture transfer mechanism in a combined structure automobile oil filter of the present invention.

[0023] Figure 5 The present invention is a stereoscopic diagram of a capture plate, a rotating connection structure, a screw rod and a moving block in a combined structure automobile oil filter.

[0024] Figure 6 The present invention is a stereoscopic diagram of a capture plate and a partition plate in a combined structure of an automobile oil filter.

[0025] Figure 7 The present invention is a stereoscopic diagram of a recovery box and a sponge in a combined structure automobile oil filter.

[0026] Figure 8 The present invention is a stereoscopic diagram of a sponge, a rotating shaft and a rotating disk in a combined structure of an automobile oil filter.

[0027] Fig. 9The present invention is a stereoscopic diagram of a rotating shaft, a rotating disk and a sliding connection structure in a combined structure automobile oil filter.

[0028] Fig.10 The present invention is a stereoscopic diagram of a rotating disk and a first unidirectional flow structure in a combined structure automobile oil filter.

[0029] Fig.11 The exploded view of the first one-way flow structure in the combined structure automobile oil filter of the present invention.

[0030] Fig.12 The invention discloses a stereoscopic diagram of a control pipe, a recovery box and an oil return structure in a combined structure automobile oil filter.

[0031] Fig.13 The exploded view of the second one-way flow structure in the combined structure automobile oil filter of the present invention.

[0032] Fig.14 The present invention is a stereoscopic diagram of a control tube in a combined structure automobile oil filter.

[0033] The numbers in the figure are: 1, filtering structure; 11, tank body; 12, cover body; 13, hollow filter column; 14, filter element; 2, control tube; 21, oil inlet; 22, oil outlet; 23, oil return port; 3, capture transfer mechanism; 31, capture structure; 311, capture plate; 312, rotating connection structure; 3121, fixed plate; 3122, connecting arm; 3123, limit column; 313, partition; 32, transfer drive structure; 321, hollow column; 322, screw rod; 323, moving block; 4, recovery mechanism; 41, adsorption structure; 411, recovery box; 4111, first connection port; 4112, second connection port; 412, sponge; 413, rotating shaft; 4131, slideway; 4 14. Turntable; 4141. Mounting compartment; 4142. First opening; 4143. Second opening; 415. Sliding connection structure; 4151. Sliding sleeve; 4152. Guide slider; 4153. First spring; 42. Solenoid valve; 43. First one-way flow structure; 431. First housing; 4311. Oil drain port; 432. Closing block; 433. Second housing; 434. First guide post; 435. Second spring; 5. Oil return structure; 51. Second one-way flow structure; 511. Third housing; 512. Fixed plate; 5121. First oil return groove; 513. Closing plate; 5131. Second oil return groove; 514. Second guide post; 515. Third spring; 52. Oil return pipe. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Reference Figures 1 to 14 As shown: a combined structure of an automobile oil filter, including a filtering structure 1, a control tube 2, a capture transfer mechanism 3, a recovery mechanism 4 and an oil return structure 5; the filtering structure 1 includes a tank body 11 and a hollow filter column 13, the open end of the tank body 11 is provided with a cover body 12, the hollow filter column 13 is coaxially arranged inside the tank body 11, and the two ends of the hollow filter column 13 are respectively abutted against the tank body 11 and the cover body 12; the control tube 2 is arranged in the middle of the cover body 12, and one end of the control tube 2 is inserted into the tank body 11 and abuts against the end of the hollow filter column 13, the control tube 2 is provided with an oil inlet 21, an oil outlet 22 and an oil return port 23, and the oil inlet 21 and the oil outlet 22 are coaxially arranged; the capture transfer mechanism 3 includes a capture structure 31 and a transfer drive structure 32, the capture structure 31 is arranged in the hollow filter column 13, and the transfer drive structure 32 It is arranged along the axial direction of the hollow filter column 13, and the transfer drive structure 32 is connected to the hollow filter column 13. The transfer drive structure 32 includes a hollow column 321, a screw rod 322 and a moving block 323. The two ends of the hollow column 321 are respectively connected to the bottom of the tank body 11 and the top of the control tube 2. The screw rod 322 is coaxially arranged inside the hollow column 321. The moving block 323 is threadedly connected to the screw rod 322, and the two ends of the moving block 323 extend out of the hollow column 321; the recovery mechanism 4 includes an adsorption structure 41 and a solenoid valve 42. The adsorption structure 41 is arranged on one side of the control tube 2, and the solenoid valve 42 is arranged on one side of the adsorption structure 41, and the solenoid valve 42 connects the oil outlet 22 and the adsorption structure 41; the oil return structure 5 is arranged on the other side of the adsorption structure 41, and the oil return structure 5 connects the adsorption structure 41 and the oil return port 23.

[0036] During the operation of the combined structure of the automobile oil filter, the oil first enters the control tube 2 through the oil inlet 21, and then flows into the coaxially arranged hollow filter column 13. The oil diffuses from the center to the surrounding inside the hollow filter column 13. During this process, the hollow filter column 13 performs preliminary filtering on the oil and intercepts most of the impurities. The oil that has been initially filtered is further filtered through the filter element 14. When too many impurities accumulate inside the hollow filter column 13, the capture transfer mechanism 3 is started. In the initial state, the capture structure 31 is located at the bottom of the hollow filter column 13, and the impurities are located above the capture structure 31. The screw rod 322 in the transfer drive structure 32 rotates, driving the moving block threadedly connected to the screw rod 322. 323 moves, thereby driving the capture structure 31 to move upward along the axis of the hollow filter column 13. During the movement, the capture structure 31 captures impurities inside the hollow filter column 13. When the capture structure 31 moves to the same height as the oil inlet 21 and the oil outlet 22, the newly-inflowing engine oil pushes the impurities on the capture structure 31 to flow toward the recovery mechanism 4 under the action of pressure, and the solenoid valve 42 opens. Most of the impurities in the engine oil are captured by the adsorption structure 41, and the engine oil passes through the oil return structure 5 and flows back to the control pipe 2 through the oil return port 23, completing the transfer of impurities and optimizing the filter path of the engine oil, thereby transferring the impurities out of the filter path of the engine oil and achieving the unchanged flow efficiency of the engine oil.

[0037] Reference Figure 3 , Figure 4 and Figure 5 As shown: the capture structure 31 includes a capture plate 311 and a rotating connection structure 312; the capture plate 311 is coaxially arranged with the hollow filter column 13, and a plurality of filter holes are provided on the capture plate 311; the rotating connection structure 312 includes a fixed plate 3121 and a plurality of connecting arms 3122, the fixed plate 3121 is arranged in parallel at the lower end of the capture plate 311, and the fixed plate 3121 is connected to the transfer drive structure 32, an annular groove is provided on the lower surface of the fixed plate 3121, and a plurality of connecting arms 3122 are arranged around the fixed plate 3121 at equal intervals, one end of the connecting arm 3122 is connected to the capture plate 311, and a limiting column 3123 is provided at the other end of the connecting arm 3122, one end of the limiting column 3123 is connected to the connecting arm 3122, and the other end of the limiting column 3123 is slidably arranged in the annular groove.

[0038] When the transfer drive structure 32 is started and drives the capture plate 311 to move along the axis of the hollow filter column 13, the capture plate 311 contacts the impurities in the hollow filter column 13 and drives the impurities to move together through physical contact. In this process, the engine oil passes through the filter holes on the capture plate 311, effectively reducing the resistance of the capture plate 311 when it moves. When the capture plate 311 moves to the same height as the oil inlet 21 and the oil outlet 22, the newly inflowing engine oil will push the impurities on the capture plate 311 to flow toward the oil outlet 22. In this process, some impurities are removed due to the oil flow. However, the force exerted by the engine oil on these impurities is transmitted to the capture plate 311, and then the limiting column 3123 is driven to slide in the annular groove through the connecting arm 3122, so that the capture plate 311 rotates around its own axis. The rotation of the capture plate 311 enables the impurities thereon to contact the engine oil at different angles. This change increases the interaction force between the engine oil and the impurities, thereby increasing the possibility that the impurities that were originally difficult to be taken away are carried to the recovery structure by the engine oil, thereby improving the efficiency of transferring the impurities to the recovery structure.

[0039] Reference Figure 3 and Figure 6 As shown, the capture structure 31 further includes a plurality of partitions 313 , which are arranged at equal intervals on the upper surface of the capture plate 311 , and the partitions 313 intersect with any diameter of the capture plate 311 .

[0040] Since the partition 313 intersects with any diameter of the capture plate 311, a structure inclined to the flow direction of the engine oil is formed. When the engine oil flows through the capture plate 311, the engine oil will exert a greater force on the partition 313 due to the inclined setting of the partition 313. This force not only drives the partition 313 to move, but also drives the capture plate 311 itself to rotate rapidly around its axis through the connection between the partition 313 and the capture plate 311. As the capture plate 311 rotates, the impurities attached to it are affected by the centrifugal force and are more easily separated from the surface of the capture plate 311 and carried by the engine oil, thereby further improving the efficiency of impurity transfer.

[0041] Reference Figure 3 , Figure 7 and Fig.12 As shown: the adsorption structure 41 includes a recovery box 411 and a sponge 412; a first connection port 4111 and a second connection port 4112 are respectively opened on both sides of the recovery box 411, the first connection port 4111 is connected to the solenoid valve 42, and the second connection port 4112 is connected to the oil return structure 5; the sponge 412 is arranged inside the recovery box 411.

[0042] When the solenoid valve 42 is opened, its open state forms a passage between the recovery box 411 and the oil outlet 22, and the engine oil carrying impurities enters the recovery box 411 from the first connection port 4111. Inside the recovery box 411, the engine oil flows through the sponge 412 area. The adsorption performance of the sponge 412 effectively captures most of the impurities in the engine oil. After the filtering effect of the sponge 412, the impurity content in the engine oil is reduced, and the engine oil with improved purity flows out smoothly through the second connection port 4112, continues to flow to the oil return structure 5, and finally returns to the control pipe 2, completing the entire engine oil purification cycle, thereby achieving the adsorption of transferred impurities and extending the service life of the engine oil.

[0043] Reference Figure 8 and Fig. 9 As shown: the adsorption structure 41 also includes a rotating shaft 413 and a rotating disk 414; the rotating shaft 413 is arranged in the middle of the recycling box 411, and both ends of the rotating shaft 413 are connected to the recycling box 411, and one end of the rotating shaft 413 extends out of the recycling box 411; the middle of the rotating disk 414 is connected to the rotating shaft 413, and a plurality of installation bins 4141 are evenly spaced inside the rotating disk 414, each installation bin 4141 is filled with sponge 412, and a first opening 4142 and a second opening 4143 are respectively opened on both sides of each installation bin 4141.

[0044] If a whole piece of sponge 412 is in the recycling box 411, since the size of the first connecting port 4111 is fixed, the engine oil entering from the first connecting port 4111 will act on the same part of the sponge 412, causing the fixed part of the sponge 412 to absorb more impurities, while the remaining part cannot be fully utilized. By setting the rotating shaft 413 and the rotating disk 414, the sponges 412 are filled in several installation bins 4141 of the rotating disk 414. The rotating shaft 413 rotates to make the first opening 4142 of one of the installation bins 4141 on the rotating disk 414 connect with the first connecting port 4111 of the recycling box 411. When the solenoid valve 42 is opened, the engine oil carrying impurities flows out from the oil outlet 22 through the first connecting port 4111. The engine oil contacts the sponge 412 in the installation chamber 4141, and the sponge 412 absorbs impurities in the engine oil. As the filtering process continues, the sponge 412 currently in use gradually becomes saturated. At this time, the rotating shaft 413 is driven to rotate again to connect the first opening 4142 of the next installation chamber 4141 with the first connecting port 4111, and a new sponge 412 is activated for engine oil filtering. The above process is repeated to ensure that multiple sponges 412 can participate in the engine oil filtering work in turn, thereby avoiding the problem of a single sponge 412 being saturated prematurely due to long-term use, and significantly improving the overall utilization rate of the sponge 412.

[0045] Reference Figure 3 and Fig. 9As shown: the adsorption structure 41 also includes a sliding connection structure 415, which is arranged between the rotating shaft 413 and the rotating disk 414, and the sliding connection structure 415 includes a sliding sleeve 4151, a guide slider 4152 and a first spring 4153; the sliding sleeve 4151 is sleeved on the rotating shaft 413, and the sliding sleeve 4151 is fixedly connected to the rotating disk 414; the guide slider 4152 is arranged on the inner wall of the sliding sleeve 4151, and the guide slider 4152 is parallel to the rotating shaft 413, and a sliding groove 4131 cooperating with the guide slider 4152 is opened on the surface of the rotating shaft 413; the first spring 4153 is sleeved on the rotating shaft 413, and the two ends of the first spring 4153 are respectively abutted against the sliding sleeve 4151 and the inner wall of the recycling box 411.

[0046] The first opening 4142 needs to be inserted into the first connecting port 4111 and pressed against the first connecting port 4111 to prevent the engine oil from flowing out from the first opening 4142 and the first connecting port 4111. The first opening 4142 will rotate with the turntable 414, so a sliding connection structure 415 is provided. When the rotating shaft 413 rotates, the turntable 414 can rotate with the rotating shaft 413 through the joint action of the sliding sleeve 4151 and the guide slider 4152. During the rotation process, when the first opening 4142 of a certain installation bin 4141 is connected to the first connecting port 4111 of the recovery box 411, due to the close fit between the first opening 4142 and the first connecting port 4111, the engine oil can flow smoothly. The liquid flows into the installation bin 4141, however, as the turntable 414 continues to rotate, the first opening 4142 will gradually slide out of the first connecting port 4111. At this time, due to the elastic action of the first spring 4153, the sleeve 4151 will move along the axial direction of the rotating shaft 413 and drive the turntable 414 to move together. When the first opening 4142 of another installation bin 4141 rotates to the first connecting port 4111, the first spring 4153 can release its stored elastic potential energy, and push the turntable 414 and the first opening 4142 to be tightly inserted into the first connecting port 4111 again, thereby achieving a sealed connection between the first connecting port 4111 and any first opening 4142.

[0047] Reference Figure 3 , Fig.10 and Fig.11As shown: the recovery mechanism 4 also includes a plurality of first unidirectional flow structures 43, which are respectively arranged at the second openings 4143 of the plurality of mounting bins 4141, and the first unidirectional flow structure 43 includes a first shell 431, a closing block 432, a second shell 433, a first guide column 434 and a second spring 435; one end of the first shell 431 is connected to the second opening 4143, and a plurality of oil discharge ports 4311 are evenly spaced on the surface of the second shell 433; the closing block 432 is arranged in the second shell 433; the second shell 433 is arranged on one side of the first shell 431, and the second shell 433 is threadedly connected to the first shell 431; the first guide column 434 is arranged in the second shell 433, one end of the first guide column 434 is connected to the second shell 433, and the other end of the first guide column 434 passes through the middle of the closing block 432; the second spring 435 is sleeved on the first guide column 434, and the two ends of the second spring 435 are respectively abutted against the closing block 432 and the second shell 433.

[0048] After passing through the sponge 412 involved in the filtration, the engine oil will flow into the recovery box 411, and then flow from the second connecting port 4112 to the reflux structure. If the second openings 4143 corresponding to the remaining sponges 412 are in an open state, the engine oil will flow into the sponge 412 that is not involved in the filtration, causing the unused sponge 412 to be contaminated. By setting the first unidirectional flow structure 43, in the initial state, the closing block 432 covers all the oil discharge ports 4311, effectively preventing the outflow of the engine oil. When the engine oil passes through the filtration of the sponge 412 and flows into the first housing 431, the pressure of the engine oil will push the closing block 432 to move along the first guide column 434. At this time, the second spring 435 is compressed, providing a reset position for the closing block 432. The required elastic force is required. As the closing block 432 moves, the originally blocked oil drain port 4311 gradually opens, and the engine oil flows out of the oil drain port 4311 and enters the subsequent reflux structure. Due to the continuous inflow of engine oil, the closing block 432 maintains a dynamic equilibrium state in the first unidirectional flow structure 43, that is, under the action of the engine oil, the closing block 432 always keeps the oil drain port 4311 open. At the same time, the first unidirectional flow structure 43 corresponding to other installation bins 4141 that do not participate in the current filtration process remains in a closed state because the closing block 432 inside it is not pushed by the engine oil, thereby effectively preventing the engine oil from entering the unused installation bin 4141 and avoiding contamination of the sponge 412.

[0049] Reference Figure 3 , Fig.12 and Fig.13As shown, the oil return structure 5 includes a second one-way flow structure 51 and an oil return pipe 52; the second one-way flow structure 51 is arranged at the oil return port 23, and the second one-way flow structure 51 includes a third housing 511, a fixing plate 512, a closing plate 513, a second guide column 514 and a third spring 515, one end of the third housing 511 is connected to the oil return port 23, the fixing plate 512 is arranged at the other end of the third housing 511, and the diameter of the fixing plate 512 is the same as the inner diameter of the third housing 511, and a first oil return groove 514 is provided on the fixing plate 512. 121, the closing plate 513 is arranged in the middle part of the third shell body 511, and a second oil return groove 5131 is opened on the closing plate 513, one end of the second guide column 514 is connected to the middle part of the closing plate 513, and the other end of the second guide column 514 passes through the middle part of the fixed plate 512, and the third spring 515 is sleeved on the second guide column 514, and the two ends of the third spring 515 are respectively abutted against the ends of the fixed plate 512 and the second guide column 514; the two ends of the oil return pipe 52 are respectively connected to the second connecting port 4112 and the second unidirectional flow structure 51.

[0050] After the engine oil passes through the recovery structure, the engine oil will enter the third housing 511 through the oil return pipe 52. At this time, the engine oil will first enter the gap between the fixed plate 512 and the closing plate 513 through the first oil return groove 5121. As the engine oil continues to flow in, the engine oil will generate a thrust on the closing plate 513, causing the closing plate 513 to move along the direction of the second guide column 514, causing the end of the second guide column 514 to squeeze the third spring 515, so that the spring stores elastic potential energy. When the closing plate 513 is separated from the fixed plate 512, the second oil return groove 5131 will run through both sides of the closing plate 513. At this time, the fixed plate 512 The engine oil between the closing plate 513 will flow smoothly to the oil return port 23 through the second oil return groove 5131. At the same time, the closing plate 513 will continue to be affected by the subsequent engine oil force, maintaining the gap between it and the fixed plate 512 unchanged, ensuring the smooth flow of the engine oil. When the engine oil flows from the closing plate 513 toward the fixed plate 512, the third spring 515 will begin to reset, pushing the closing plate 513 to move toward the fixed plate 512 until the two are tightly fitted. During this process, the first oil return groove 5121 and the second oil return groove 5131 will be closed, thereby effectively preventing the reverse flow of the engine oil.

[0051] Reference Figure 3 As shown, the inner diameter of the capture plate 311 is the same as the inner diameter of the hollow filter column 13, and the edge of the capture plate 311 is smoothly transitioned.

[0052] When the hollow filter column 13 filters impurities in the engine oil, some impurities will adhere to the inner wall of the hollow filter column 13. By setting the inner diameter of the capture plate 311 to be the same as the inner diameter of the hollow filter column 13, when the capture plate 311 moves along the axis of the hollow filter column 13, the edge of the capture plate 311 can scrape off the impurities on the inner wall of the hollow filter column 13, and since the edge of the capture plate 311 has a smooth transition, the edge of the capture plate 311 will not scratch the inner wall of the hollow filter column 13 when it contacts the inner wall of the hollow filter column 13, thereby achieving efficient removal of impurities on the inner wall of the hollow filter column 13.

[0053] Reference Fig.14 As shown: the oil return port 23 is located at the lower end of the oil inlet 21 and the oil outlet 22.

[0054] If the oil return port 23 is located at the upper end of the oil inlet 21 and the oil outlet 22, the oil at the oil outlet 22 needs to overcome the effect of gravity in order to flow through the recovery mechanism 4 and the oil return structure 5 to the oil return port 23. Therefore, the resistance to the oil flowing in the recovery mechanism 4 and the oil return structure 5 is relatively large. By setting the oil return port 23 at the lower end of the oil inlet 21 and the oil outlet 22, the oil is in a downward process as a whole during the process of flowing from the oil outlet 22 to the oil return port 23, so that the resistance to the oil flowing in the recovery mechanism 4 and the oil return structure 5 is relatively small, thereby promoting the smooth flow of the oil in the recovery mechanism 4 and the oil return structure 5 and improving the efficiency of the oil return.

[0055] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A combined structure automobile oil filter, characterized in that: It comprises a filtering structure (1), a control pipe (2), a capture and transfer mechanism (3), a recovery mechanism (4) and an oil return structure (5); The filtering structure (1) comprises a tank body (11) and a hollow filter column (13); the open end of the tank body (11) is provided with a cover body (12); the hollow filter column (13) is coaxially arranged inside the tank body (11), and the two ends of the hollow filter column (13) are respectively in contact with the tank body (11) and the cover body (12); The control tube (2) is arranged in the middle of the cover body (12), and one end of the control tube (2) is inserted into the tank body (11) and abuts against the end of the hollow filter column (13). The control tube (2) is provided with an oil inlet (21), an oil outlet (22) and an oil return port (23), and the oil inlet (21) and the oil outlet (22) are coaxially arranged. The capture transfer mechanism (3) comprises a capture structure (31) and a transfer drive structure (32); the capture structure (31) is arranged in the hollow filter column (13); the transfer drive structure (32) is arranged along the axial direction of the hollow filter column (13); and the transfer drive structure (32) is connected to the hollow filter column (13); The recovery mechanism (4) comprises an adsorption structure (41) and an electromagnetic valve (42), wherein the adsorption structure (41) is arranged on one side of the control pipe (2), and the electromagnetic valve (42) is arranged on one side of the adsorption structure (41), and the electromagnetic valve (42) is connected with the oil outlet (22) and the adsorption structure (41); The oil return structure (5) is arranged on the other side of the adsorption structure (41), and the oil return structure (5) is in communication with the adsorption structure (41) and the oil return port (23).

2. The combined structure automobile oil filter according to claim 1, characterized in that: The capture structure (31) comprises a capture plate (311) and a rotation connection structure (312); The capture plate (311) is coaxially arranged with the hollow filter column (13), and a plurality of filter holes are formed on the capture plate (311); The rotating connection structure (312) comprises a fixed disk (3121) and a plurality of connecting arms (3122). The fixed disk (3121) is arranged in parallel at the lower end of the capture disk (311), and the fixed disk (3121) is connected to the transfer drive structure (32). An annular groove is provided on the lower surface of the fixed disk (3121). The plurality of connecting arms (3122) are arranged around the fixed disk (3121) at equal intervals. One end of the connecting arm (3122) is connected to the capture disk (311), and a limiting column (3123) is arranged at the other end of the connecting arm (3122). One end of the limiting column (3123) is connected to the connecting arm (3122), and the other end of the limiting column (3123) is slidably arranged in the annular groove.

3. The combined structure automobile oil filter according to claim 2, characterized in that: The capture structure (31) further comprises a plurality of partitions (313), wherein the plurality of partitions (313) are arranged at equal intervals on the upper surface of the capture plate (311), and the partitions (313) intersect with any diameter of the capture plate (311).

4. The combined structure automobile oil filter according to claim 1, characterized in that: The adsorption structure (41) includes a recovery box (411) and a sponge (412); A first connection port (4111) and a second connection port (4112) are respectively provided on both sides of the recovery box (411), the first connection port (4111) is connected to the solenoid valve (42), and the second connection port (4112) is connected to the oil return structure (5); The sponge (412) is disposed inside the recovery box (411).

5. The combined structure automobile oil filter according to claim 4, characterized in that: The adsorption structure (41) further includes a rotating shaft (413) and a rotating disk (414); The rotating shaft (413) is arranged in the middle of the recycling box (411), both ends of the rotating shaft (413) are connected to the recycling box (411), and one end of the rotating shaft (413) extends out of the recycling box (411); The middle part of the rotating disk (414) is connected to the rotating shaft (413), and a plurality of installation chambers (4141) are provided at equal intervals inside the rotating disk (414), each installation chamber (4141) is filled with a sponge (412), and a first opening (4142) and a second opening (4143) are respectively provided on two sides of each installation chamber (4141).

6. The combined structure automobile oil filter according to claim 5, characterized in that: The adsorption structure (41) further comprises a sliding connection structure (415), wherein the sliding connection structure (415) is arranged between the rotating shaft (413) and the rotating disk (414), and the sliding connection structure (415) comprises a sliding sleeve (4151), a guide slider (4152) and a first spring (4153); The sliding sleeve (4151) is sleeved on the rotating shaft (413), and the sliding sleeve (4151) is fixedly connected to the rotating disk (414); The guide slider (4152) is arranged on the inner wall of the sliding sleeve (4151), and the guide slider (4152) is parallel to the rotating shaft (413), and a sliding groove (4131) matching with the guide slider (4152) is provided on the surface of the rotating shaft (413); The first spring (4153) is sleeved on the rotating shaft (413), and two ends of the first spring (4153) are respectively in contact with the sliding sleeve (4151) and the inner wall of the recovery box (411).

7. The combined structure automobile oil filter according to claim 1, characterized in that: The recovery mechanism (4) further comprises a plurality of first one-way flow structures (43), wherein the plurality of first one-way flow structures (43) are respectively arranged at the second openings (4143) of the plurality of installation bins (4141), and the first one-way flow structures (43) comprise a first shell (431), a closing block (432), a second shell (433), a first guide column (434) and a second spring (435); One end of the first shell (431) is connected to the second opening (4143), and a plurality of oil discharge ports (4311) are formed on the surface of the second shell (433) at equal intervals; The closing block (432) is disposed in the second housing (433); The second shell (433) is arranged on one side of the first shell (431), and the second shell (433) is threadedly connected to the first shell (431); The first guide column (434) is disposed in the second housing (433), one end of the first guide column (434) is connected to the second housing (433), and the other end of the first guide column (434) passes through the middle of the closing block (432); The second spring (435) is sleeved on the first guide column (434), and two ends of the second spring (435) are respectively in contact with the closing block (432) and the second shell (433).

8. The combined structure automobile oil filter according to claim 1, characterized in that: The oil return structure (5) comprises a second one-way flow structure (51) and an oil return pipe (52); The second one-way flow structure (51) is arranged at the oil return port (23); Both ends of the oil return pipe (52) are respectively connected to the second connecting port (4112) and the second unidirectional flow structure (51).

9. The combined structure automobile oil filter according to claim 2, characterized in that: The inner diameter of the capture plate (311) is the same as the inner diameter of the hollow filter column (13), and the edge of the capture plate (311) has a smooth transition.

10. The combined structure automobile oil filter according to claim 1, characterized in that: The oil return port (23) is located at the lower ends of the oil inlet (21) and the oil outlet (22).

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