Two-way oil filter

Abstract

The utility model discloses a two-way oil filter which comprises a mounting seat and a filtering mechanism, connecting pipes are arranged at the lower ends of the left side and the right side of the mounting seat, an oil inlet is formed in the upper end of the interior of the mounting seat, an oil outlet is formed in the lower end of the interior of the mounting seat, the lower ends of the connecting pipes are communicated with the oil outlet, and filtering cylinders are arranged on the left side and the right side of the mounting seat. The middle parts of the filter cartridges are all communicated with the oil inlet, the upper ends of the filter cartridges are all provided with end covers, the upper ends of the connecting pipes are all communicated with the lower ends of the filter cartridges, the lower ends of the sides, far away from the mounting seat, of the outer surfaces of the filter cartridges are all provided with liquid discharging pipes, and the middle parts of the interiors of the liquid discharging pipes are all provided with valves; a multi-layer sealing structure is arranged, the filter screen can be continuously pressed, the filter screen is prevented from loosening, the filtering quality is improved, an adjustable anti-blocking structure is further arranged, the flow is controlled, and meanwhile dirt can be prevented from falling into the oil outlet pipe to block an oil way during cleaning work.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil filters, in particular to a double-pass oil filter. Background Art

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the role of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering. As long as it is applied between two objects in relative motion and can reduce the friction and wear caused by contact between the two objects, it is lubricating oil. Industrial equipment often uses lubricating oil stations to supply lubricating oil. Lubricating oil stations are service facilities that provide lubricating oil for automobiles, machinery and industrial equipment. When the lubricating oil circulates, the abrasive particles and various impurities generated by various components during the working process will also circulate, requiring an oil filter. Common oil filters are mostly two-way oil filters. Existing two-way oil filter workers During operation, when the lubricating oil passes through one side of the filter cartridge, the internal dirt is blocked by the filter screen. When the filter screen is blocked to a certain extent and needs to be cleaned and replaced, it is only necessary to reverse the lubricating oil to flow through the filter cartridge on the other side, and replacement can be done without stopping the machine. The traditional two-way oil filter has a fixed flow rate and the filter screen is fixed by the end cover. The error is large, and there will be looseness and poor sealing under the filter screen, which affects the filtration quality. After working for a period of time, the filter screen needs to be replaced and the filter cartridge needs to be cleaned. When the filter screen is taken out, the dirt attached to the outside of the filter screen often falls into the oil outlet pipe at the bottom of the filter cartridge. When the filter cartridge is cleaned, the dirt on the cartridge wall will also fall into the oil outlet pipe at the bottom of the filter cartridge. When used again, the dirt will return to the oil tank again and block the oil circuit. For this reason, we propose a two-way oil filter. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a double-pass oil filter with a multi-layer sealing structure, which can continuously press the filter screen to prevent the filter screen from loosening, thereby improving the filtration quality. It is also provided with an adjustable anti-blocking structure, which can control the flow rate while preventing dirt from falling into the oil outlet pipe and clogging the oil path during cleaning, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a two-way oil filter, comprising a mounting seat and a filtering mechanism;

[0005] Mounting seat: Connecting pipes are provided at the lower ends of both left and right sides, an oil inlet is provided at the upper end of the interior of the mounting seat, an oil outlet is provided at the lower end of the interior of the mounting seat, and the lower ends of the connecting pipes are connected to the oil outlets. Filter cartridges are provided on both sides of the mounting seat, and the middle parts of the filter cartridges are connected to the oil inlets. End caps are provided at the upper ends of the filter cartridges, and the upper ends of the connecting pipes are connected to the lower ends of the filter cartridges. A drain pipe is provided at the lower end of the outer surface of the filter cartridge away from the mounting seat, and a valve is provided in the middle of the drain pipe to facilitate the outflow of waste liquid.

[0006] Filtering mechanism: It is respectively arranged in the middle of the inner part of the filter cartridge and has a multi-layer sealing structure. It can also continuously press the filter screen to prevent the filter screen from loosening, thereby improving the filtration quality. It is also equipped with an adjustable anti-blocking structure to control the flow rate while preventing dirt from falling into the oil outlet pipe during cleaning and clogging the oil line.

[0007] Furthermore, the filtering mechanism includes a bottom tube, a filter frame, a filter, a handle and a sealing rubber sleeve. The bottom tube is arranged at the lower end of the inner part of the filter cartridge, and the filter frame is arranged on the upper end of the outer surface of the bottom tube through the sealing rubber sleeve. The lower end of the filter frame is provided with a sealing rubber pad, which is fitted with the upper end of the bottom tube. The filter is arranged on the outer surface of the filter frame, and the handle is arranged at the upper end of the filter. The multi-layer sealing structure improves the sealing between the filter frame and the bottom tube.

[0008] Furthermore, the filtering mechanism also includes an adjustable anti-blocking component, which includes a sliding column, a spring and a top plate. The sliding columns are slidably connected to the middle of the inner part of the bottom tube, and the top plates are arranged at the upper end of the sliding columns. The upper ends of the top plates are installed in cooperation with the top walls of the vertically adjacent bottom tubes. A spring is provided between the lower end of the top plate and the middle part of the bottom tube, and the spring is sleeved on the outer surface of the sliding column. When the filter frame is inserted, the top plate opens, and when the filter frame is removed, the top plate closes, effectively preventing dirt from entering the oil outlet during cleaning.

[0009] Furthermore, the adjustable anti-blocking assembly also includes a screw rod 1, a pressure plate and an adjusting nut. The screw rod 1 is threadedly connected to the middle of the inner part of the filter frame, the pressure plates are arranged at the lower end of the screw rod 1, and the lower ends of the pressure plates are fitted with the upper ends of the vertically adjacent top plates. The adjusting nuts are threadedly connected to the outer surface of the screw rod 1, and the upper ends of the adjusting nuts are fitted with the lower ends of the vertically adjacent filter frames, so that the size of the lubricating oil flow can be adjusted according to actual conditions.

[0010] Furthermore, the filtering mechanism also includes a fastening assembly, which includes a second screw rod, a sliding block and a knob. The second screw rod is rotatably connected to the inner middle of the end cover, the knob is arranged at the upper end of the second screw rod, the sliding block is slidably connected to the inner middle of the end cover, the outer surface of the second screw rod is connected to the inner middle thread of the vertically adjacent sliding block, and the lower end of the sliding block is fitted with the upper end of the vertically adjacent filter screen, which can quickly and accurately press the filter screen frame to prevent the filter screen frame from loosening.

[0011] Furthermore, the filtering mechanism also includes a reversing component, which also includes a mounting groove, a rotating shaft and a protrusion. The mounting grooves are all opened in the middle of the interior of the mounting seat, the rotating shaft is rotatably connected to the middle of the interior of the mounting seat, and a hexagonal prism is provided at the upper end of the rotating shaft. The protrusions are all arranged in the middle of the outer surface of the rotating shaft. The outer surface of the protrusion is installed in cooperation with the inner wall of the mounting groove to provide a reversing effect for the lubricating oil.

[0012] Furthermore, the bottom wall of the filter cartridge is an inclined bottom wall with a lower outer side and a higher inner side. The side of the bottom wall of the filter cartridge away from the mounting seat is at the same horizontal height as the lower end of the inner wall of the drain pipe. When cleaning the filter cartridge, waste liquid can flow out quickly.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the double-pass oil filter has the following advantages:

[0014] 1. Set the external handle with a hexagonal inner hole on the surface of the hexagonal prism and rotate it 180 degrees to the right. The shaft and the protrusion will rotate accordingly. The protrusion will block the inlet and outlet oil channels on the right side, and the lubricating oil will enter the filter cartridge on the left side, and then the filtering work will be carried out. At this time, open the end cover on the right side, and then use the handle to take out the filter frame and filter screen. As the filter frame and filter screen are taken out, the pressing piece will also move up. At this time, the upper end of the top piece is not under force, and the spring expands without force, moving the sliding column and the top piece up until the top piece fits with the top wall of the bottom tube and the gap between the top piece and the bottom tube disappears. Then clean the filter cartridge and open the valve on the right. The impurities and contaminants inside the filter cartridge will be washed down and quickly discharged from the drain pipe along the inclined bottom wall of the filter cartridge to avoid dirt falling into the oil outlet pipe and clogging the oil channel during cleaning.

[0015] 2. Align the filter frame and filter with the bottom tube so that the lower end of the filter frame fits with the upper end of the bottom tube, and the sealing sleeve is set on the outer surface of the bottom tube. Then close the end cover and turn the knob. The second screw also rotates, driving the sliding block to move down. When the lower end of the sliding block contacts the upper end of the filter, continue to turn the knob, the sliding block continues to move down, and continuously presses the filter. At this time, the filter and the filter frame continue to move down, and the sealing pad at the lower end of the filter frame is deformed. The sealing sleeve also moves down and deforms at the same time. The inner wall of the sealing sleeve fits more closely with the outer surface of the bottom tube. It is equipped with a multi-layer sealing structure, and can continuously press the filter to prevent the filter from loosening, thereby improving the filtration quality.

[0016] 3. When the flow rate of the lubricating oil needs to be changed, it should be adjusted before installing the filter frame and filter. Turn the adjusting nut forward to drive the screw rod and the pressure plate upward. The gap between the pressure plate and the bottom tube becomes smaller, and the flow rate of the lubricating oil also becomes smaller. Turn the adjusting nut backward to drive the screw rod and the pressure plate downward. The gap between the pressure plate and the bottom tube becomes larger, and the flow rate of the lubricating oil also becomes larger. The flow rate of the lubricating oil can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the filter mechanism of the utility model;

[0019] Figure 3This is a schematic diagram of the cross-sectional structure of the adjustable anti-blocking component of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the reversing component of the utility model.

[0021] In the figure: 1 mounting base, 2 connecting pipe, 3 filter cartridge, 4 end cover, 5 filtering mechanism, 51 bottom pipe, 52 filter screen frame, 53 filter screen, 54 handle, 55 sealing rubber sleeve, 56 adjustable anti-blocking component, 561 screw rod 1, 562 pressure plate, 563 adjusting nut, 564 sliding column, 565 spring, 566 top plate, 57 fastening component, 571 screw rod 2, 572 sliding block, 573 knob, 58 reversing component, 581 mounting groove, 582 rotating shaft, 583 bump, 6 drain pipe, 7 valve. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 , this embodiment provides a technical solution: a two-way oil filter, comprising a mounting seat 1 and a filtering mechanism 5;

[0024] Mounting seat 1: connecting pipes 2 are provided on the lower ends of the left and right sides thereof, an oil inlet is provided on the upper end of the interior of the mounting seat 1, an oil outlet is provided on the lower end of the interior of the mounting seat 1, the lower ends of the connecting pipes 2 are connected with the oil outlets, filter cartridges 3 are provided on the left and right sides of the mounting seat 1, the middle of the filter cartridges 3 are connected with the oil inlet, the upper ends of the filter cartridges 3 are provided with end covers 4, the upper ends of the connecting pipes 2 are connected with the lower ends of the filter cartridges 3, a drain pipe 6 is provided on the lower end of the side of the outer surface of the filter cartridge 3 away from the mounting seat 1, a valve 7 is provided in the middle of the drain pipe 6 to facilitate the outflow of waste liquid, the bottom wall of the filter cartridge 3 is an inclined bottom wall with a low outer side and a high inner side, the bottom wall of the filter cartridge 3 away from the mounting seat 1 and the lower end of the inner wall of the drain pipe 6 are at the same horizontal height, when cleaning the filter cartridge 3, the waste liquid can flow out quickly;

[0025] Filter mechanism 5: It is respectively arranged in the middle of the interior of the filter cartridge 3. The filter mechanism 5 includes a bottom tube 51, a filter frame 52, a filter 53, a handle 54 and a sealing rubber sleeve 55. The bottom tube 51 is arranged at the lower end of the interior of the filter cartridge 3. The upper end wall of the bottom tube 51 is an inclined wall with a smaller upper part and a larger lower part. The filter frame 52 is sleeved on the upper end of the outer surface of the bottom tube 51 through the sealing rubber sleeve 55. The sealing rubber sleeve 55 can be deformed to fit tightly against the upper end of the outer surface of the bottom tube 51. The lower end of the filter frame 52 is provided with a sealing rubber gasket, which fits the upper end of the bottom tube 51. The filter 53 is arranged on the outer surface of the filter frame 52. The handle 54 is arranged at the upper end of the filter 53 to facilitate the disassembly and assembly of the filter frame 52 and the filter 53. The multi-layer sealing structure improves the connection between the filter frame 52 and the bottom tube 51. In order to improve the sealing performance of the filter mechanism 5, the filter mechanism 5 also includes an adjustable anti-blocking component 56, which includes a sliding column 564, a spring 565 and a top plate 566. The sliding column 564 is slidably connected to the middle of the inner part of the bottom tube 51, and the top plate 566 is arranged on the upper end of the sliding column 564. The upper end of the top plate 566 is installed in conjunction with the top wall of the vertically adjacent bottom tube 51. A spring 565 is provided between the lower end of the top plate 566 and the middle part of the bottom tube 51. The spring 565 is sleeved on the outer surface of the sliding column 564. When the filter frame 52 is inserted, the top plate 566 is opened, and when the filter frame 52 is removed, the top plate 566 is closed, which effectively prevents dirt from entering the oil outlet during cleaning. The adjustable anti-blocking component 56 also includes a screw rod 561, a pressing plate 562 and an adjusting nut 563. The rod 1 561 is threadedly connected to the inner middle of the filter frame 52, the pressing piece 562 is arranged at the lower end of the screw rod 1 561, and the lower end of the pressing piece 562 is fitted with the upper end of the vertically adjacent top piece 566, and the adjusting nut 563 is threadedly connected to the outer surface of the screw rod 1 561, and the upper end of the adjusting nut 563 is fitted with the lower end of the vertically adjacent filter frame 52, so that the size of the lubricating oil flow can be adjusted according to actual conditions. The filtering mechanism 5 also includes a fastening assembly 57, which includes a screw rod 2 571, a sliding block 572 and a knob 573. The screw rod 2 571 is rotatably connected to the inner middle of the end cover 4, the knob 573 is arranged at the upper end of the screw rod 2 571, the sliding block 572 is slidably connected to the inner middle of the end cover 4, and the screw rod 2 571 is fixed to the inner middle of the end cover 4. The outer surfaces are all connected to the inner middle threads of the vertically adjacent sliding blocks 572, and the lower ends of the sliding blocks 572 are all fitted with the upper ends of the vertically adjacent filter screens 53, which can quickly and accurately press the filter screen frame 52 to prevent the filter screen frame 52 from loosening. The filtering mechanism 5 also includes a reversing component 58, and the reversing component 58 also includes a mounting groove 581, a rotating shaft 582 and a protrusion 583. The mounting groove 581 is opened in the middle of the interior of the mounting seat 1, and the rotating shaft 582 is rotatably connected to the middle of the interior of the mounting seat 1. The upper end of the rotating shaft 582 is provided with a hexagonal prism, and the protrusion 583 is arranged in the middle of the outer surface of the rotating shaft 582. The outer surface of the protrusion 583 is installed in conjunction with the inner wall of the mounting groove 581 to provide a reversing effect for the lubricating oil. It is provided with a multi-layer sealing structure and can continuously press the filter screen.It prevents the filter from loosening, improves the filtration quality, and is equipped with an adjustable anti-blocking structure to control the flow rate while preventing dirt from falling into the oil outlet pipe and blocking the oil path during cleaning.

[0026] The working principle of a double-pass oil filter provided by the present invention is as follows: when filtering lubricating oil, the lubricating oil with impurities and dirt enters the right filter cartridge 3 through the oil inlet, and the lubricating oil passes through the filter frame 52 and the filter screen 53 under the action of the pressure difference into the connecting pipe 2, and then flows out from the oil outlet. At this time, the impurities and dirt mixed in the lubricating oil are blocked by the filter screen 53, and some of the impurities and dirt are adsorbed on the surface of the filter screen 53, and some remain in the filter cartridge 3. After working for a period of time, the impurities and dirt inside the filter screen 53 and the filter cartridge 3 reach a certain level, and the filter screen 53 and the filter cartridge 3 need to be replaced and cleaned. The outer handle with a hexagonal inner hole is set on the surface of the hexagonal prism and rotated 180 degrees to the right. The shaft 582 and the protrusion 583 As it rotates, the protrusion 583 blocks the oil inlet and outlet on the right side, and the lubricating oil enters the filter cartridge 3 on the left, and then the filtering work is carried out. At this time, the end cover 4 on the right is opened, and the filter frame 52 and the filter screen 53 are taken out through the handle 54. As the filter frame 52 and the filter screen 53 are taken out, the pressing piece 562 also moves up. At this time, the upper end of the top plate 566 is not under force, and the spring 565 is not under force and expands, moving the sliding column 564 and the top plate 566 upward until the top plate 566 fits with the top wall of the bottom tube 51 and the gap between the top plate 566 and the bottom tube 51 disappears. Then the filter cartridge 3 is cleaned, and the valve 7 on the right is opened. The impurities and pollutants inside the filter cartridge 3 are washed down and quickly flow along the bottom of the inclined filter cartridge 3. The liquid wall is discharged from the drain pipe 6. After the filter cartridge 3 and the filter screen 53 are cleaned, the filter screen frame 52 and the filter screen 53 are aligned with the bottom tube 51 so that the lower end of the filter screen frame 52 fits with the upper end of the bottom tube 51, and the sealing rubber sleeve 55 is sleeved on the outer surface of the bottom tube 51. Then, the end cover 4 is closed and the knob 573 is turned. The second screw rod 571 also rotates accordingly, driving the sliding block 572 to move downward. When the lower end of the sliding block 572 contacts the upper end of the filter screen 53, the knob 573 is continued to be turned, and the sliding block 572 continues to move downward, continuously pressing the filter screen 53. At this time, the filter screen 53 and the filter screen frame 52 continue to move downward, and the sealing rubber pad at the lower end of the filter screen frame 52 is deformed. The sealing rubber sleeve 55 also moves downward and deforms at the same time, and the inner wall of the sealing rubber sleeve 55 is aligned with the bottom tube. The outer surface of 51 fits more closely. When the flow rate of the lubricating oil needs to be changed, adjustments should be made before installing the filter frame 52 and the filter 53. The adjusting nut 563 is turned forward to drive the screw rod 561 and the pressing plate 562 to move upward, the gap between the pressing plate 562 and the bottom tube 51 becomes smaller, and the flow rate of the lubricating oil also becomes smaller. The adjusting nut 563 is turned reversely to drive the screw rod 561 and the pressing plate 562 to move downward, the gap between the pressing plate 562 and the bottom tube 51 becomes larger, and the flow rate of the lubricating oil also becomes larger. It is equipped with a multi-layer sealing structure, which can continuously press the filter screen to prevent the filter screen from loosening, thereby improving the filtration quality. It is also equipped with an adjustable anti-blocking structure, which can control the flow rate while preventing dirt from falling into the oil outlet pipe and clogging the oil path during cleaning.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A two-way oil filter, characterized by: It comprises a mounting seat (1) and a filtering mechanism (5); The mounting seat (1) is provided with connecting pipes (2) at the lower ends of both left and right sides, an oil inlet is provided at the upper end of the interior of the mounting seat (1), an oil outlet is provided at the lower end of the interior of the mounting seat (1), the lower end of the connecting pipe (2) is connected to the oil outlet, a filter cartridge (3) is provided on both left and right sides of the mounting seat (1), the middle of the filter cartridge (3) is connected to the oil inlet, an end cap (4) is provided at the upper end of the filter cartridge (3), the upper end of the connecting pipe (2) is connected to the lower end of the filter cartridge (3), a liquid discharge pipe (6) is provided at the lower end of the outer surface of the filter cartridge (3) away from the mounting seat (1), and a valve (7) is provided in the middle of the liquid discharge pipe (6); Filtering mechanism (5): each of which is arranged in the middle of the filter cartridge (3); The filtering mechanism (5) comprises a bottom tube (51), a filter screen frame (52), a filter screen (53), a handle (54) and a sealing rubber sleeve (55); the bottom tube (51) is arranged at the lower end of the inner part of the filter cartridge (3); the filter screen frame (52) is sleeved on the upper end of the outer surface of the bottom tube (51) through the sealing rubber sleeve (55); a sealing rubber pad is provided at the lower end of the filter screen frame (52), and the sealing rubber pad is fitted with the upper end of the bottom tube (51); the filter screen (53) is arranged on the outer surface of the filter screen frame (52); and the handle (54) is arranged at the upper end of the filter screen (53); The filtering mechanism (5) further comprises an adjustable anti-blocking assembly (56), the adjustable anti-blocking assembly (56) comprising a sliding column (564), a spring (565) and a top plate (566), the sliding columns (564) being slidably connected to the middle of the interior of the bottom tube (51), the top plates (566) being arranged at the upper ends of the sliding columns (564), the upper ends of the top plates (566) being mounted in cooperation with the top walls of the vertically adjacent bottom tubes (51), a spring (565) being arranged between the lower ends of the top plates (566) and the middle of the bottom tube (51), the spring (565) being sleeved on the outer surface of the sliding columns (564).

2. A two-way oil filter according to claim 1, characterized in that: The adjustable anti-blocking assembly (56) further comprises a screw rod (561), a pressing plate (562) and an adjusting nut (563), wherein the screw rod (561) is threadedly connected to the inner middle of the filter frame (52), the pressing plate (562) is arranged at the lower end of the screw rod (561), the lower end of the pressing plate (562) is fitted with the upper end of the vertically adjacent top plate (566), and the adjusting nut (563) is threadedly connected to the outer surface of the screw rod (561), and the upper end of the adjusting nut (563) is fitted with the lower end of the vertically adjacent filter frame (52).

3. A two-way oil filter according to claim 1, characterized in that: The filtering mechanism (5) further comprises a fastening assembly (57), the fastening assembly (57) comprising a second screw rod (571), a sliding block (572) and a knob (573), the second screw rod (571) being rotatably connected to the inner middle of the end cover (4), the knob (573) being arranged at the upper end of the second screw rod (571), the sliding block (572) being slidably connected to the inner middle of the end cover (4), the outer surface of the second screw rod (571) being threadedly connected to the inner middle of the vertically adjacent sliding block (572), and the lower end of the sliding block (572) being in contact with the upper end of the vertically adjacent filter screen (53).

4. A two-way oil filter according to claim 1, characterized in that: The filtering mechanism (5) further comprises a reversing assembly (58), the reversing assembly (58) further comprising a mounting groove (581), a rotating shaft (582) and a protrusion (583), the mounting groove (581) being provided in the middle of the interior of the mounting seat (1), the rotating shaft (582) being rotatably connected to the middle of the interior of the mounting seat (1), the upper end of the rotating shaft (582) being provided with a hexagonal prism, the protrusion (583) being provided in the middle of the outer surface of the rotating shaft (582), the outer surface of the protrusion (583) being fitted with the inner wall of the mounting groove (581).

5. The dual-pass oil filter according to claim 1, characterized in that: The bottom wall of the filter cartridge (3) is an inclined bottom wall with a lower outer side and a higher inner side. The side of the bottom wall of the filter cartridge (3) away from the mounting seat (1) is at the same level as the lower end of the inner wall of the drain pipe (6).

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