Duplex oil filter

Abstract

The utility model discloses a duplex oil filter. The duplex oil filter comprises a filter shell, a valve body and a mounting seat, the number of the filter shells is two, sealing covers are installed at the top ends of the two filter shells through bolts, first liquid inlet pipes are fixedly connected to the upper ends of the opposite sides of the outer arc surfaces of the two filter shells correspondingly, and first liquid outlet pipes are fixedly connected to the lower ends of the opposite sides of the outer arc surfaces of the two filter shells correspondingly; the left side and the right side of the upper end of the outer surface of the valve body are fixedly connected with third liquid inlet pipes correspondingly, the third liquid inlet pipes and the transversely adjacent first liquid inlet pipes are installed through flanges, the left side and the right side of the lower end of the outer surface of the valve body are fixedly connected with third liquid outlet pipes correspondingly, and the third liquid outlet pipes and the transversely adjacent first liquid outlet pipes pass through flanges. The maintenance process of the duplex oil filter can be greatly simplified, the time consumption and the operation complexity are reduced, and the maintenance efficiency of the duplex oil filter and the convenience of user operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering systems, in particular to a double oil filter. Background Art

[0002] The lubrication system in the oil station is crucial to the normal operation of the equipment. The double oil filter system provides dual oil filtering capabilities to ensure that even if one oil filter needs maintenance or fails, the other can continue to filter the oil, thus avoiding equipment shutdown or damage due to lubricating oil problems.

[0003] When installing the traditional duplex oil filter, place the filter element in the installation opening around the filter element seat, and then firmly fix the filter element on the seat by fixing screws or buckles. When removing, close the relevant oil circuit valves, unfasten the fixing screws or buckles around the filter element seat, and remove the old filter element.

[0004] The traditional duplex oil filter has the following problems: since a large number of screws or buckles need to be removed during installation and disassembly, the operation is cumbersome, which increases the complexity and time consumption of the maintenance process. Therefore, we propose a duplex oil filter. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a double oil filter, which can greatly simplify the maintenance process of the double oil filter, reduce time consumption and operation complexity, improve the maintenance efficiency of the double oil filter and the convenience of user operation, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a duplex oil filter, comprising a filter housing, a valve body and a mounting seat;

[0007] Filter housings: There are two of them, and the tops of the two filter housings are both installed with covers by bolts, and the upper ends of the two filter housings on the opposite sides of the outer arc surfaces are respectively fixedly connected with a liquid inlet pipe, and the lower ends of the two filter housings on the opposite sides of the outer arc surfaces are respectively fixedly connected with a liquid outlet pipe;

[0008] Valve body: The left and right sides of the upper end of the outer surface of the valve body are respectively fixedly connected with the liquid inlet pipe three, and the liquid inlet pipe three is installed with the laterally adjacent liquid inlet pipe one through a flange. The left and right sides of the lower end of the outer surface of the valve body are respectively fixedly connected with the liquid outlet pipe three, and the liquid outlet pipe three is connected with the laterally adjacent liquid outlet pipe one through a flange. A reversing valve is provided on the valve body;

[0009] Mounting seat: It is respectively arranged and installed on the lower end of the inner wall of the two filter housings. A mounting groove is provided at one end of the mounting seat close to the center of the filter housing. The inside of the mounting groove is installed with a filter element through an installation mechanism, which can greatly simplify the maintenance process of the duplex oil filter, reduce time consumption and operation complexity, and improve the maintenance efficiency of the duplex oil filter and the convenience of user operation.

[0010] Furthermore, a second liquid inlet pipe is fixedly connected to the upper side of the front end of the outer surface of the valve body, and a second liquid outlet pipe is fixedly connected to the lower side of the front end of the outer surface of the valve body, so as to facilitate the inflow and outflow of oil.

[0011] Furthermore, it also includes sewage pipes, which are fixedly connected to the opposite sides of the outer arc surfaces of the two filter shells, and the middle parts of the sewage pipes are connected in series with valves to facilitate the discharge of impurities.

[0012] Furthermore, it also includes a drain port, which is opened in the middle of the mounting seat, and the inner wall of the drain port is provided with a filter screen for secondary filtration.

[0013] Furthermore, the mounting mechanism includes a clamping column, a spring, a sliding hole and a fixing ring, the sliding holes are all opened on the inner wall of the mounting groove, the inner wall of the sliding hole is slidably connected with the clamping column, one end of the clamping column close to the center of the mounting seat is cooperated with the outer surface of a filter element for mounting, one end of the clamping column away from the center of the mounting seat is fixedly connected with the fixing ring, the fixing ring is slidably connected to the inner wall of the adjacent sliding hole, a spring is fixedly connected between one end of the fixing ring close to the center of the mounting seat and the inner wall of the adjacent sliding hole, and the spring is sleeved on the outer surface of the clamping column to realize easy replacement of the filter element.

[0014] Furthermore, the mounting mechanism also includes an internal threaded ring and a threaded groove. The threaded grooves are all opened at one end of the mounting seat away from the center of the filter housing. The interior of the threaded grooves are all threadedly connected with internal threaded rings. The internal threaded rings are all installed in cooperation with vertically adjacent clamping columns to achieve self-locking, thereby facilitating the fixing of the filter element.

[0015] Furthermore, the installation mechanism also includes a lever, and the lever is fixedly connected to the upper surface of the internal thread ring to drive the installation mechanism.

[0016] Furthermore, the lower end of the outer surface of the filter housing is fixedly connected with evenly distributed support legs to facilitate supporting the filter housing and ensure stability during filtration.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the double oil filter has the following advantages:

[0018] When the filter element needs to be maintained or replaced, first, remove the bolts on the filter housing to release the fixation of its cover, then move the lever to drive the internal thread ring to rotate. The internal thread ring is connected to the threaded groove and moves upward along the axis of the thread groove. During the movement, the bottom end of the internal thread ring and the inclined surface of the clamping column are squeezed out, and the spring releases the elastic energy, causing the clamping column to reset along the inner wall of the slide hole. After the clamping column is reset, the squeeze fixation of the filter element is cancelled, so that the filter element can be easily taken out from the inside of the filter housing, and then the new filter element is placed in the installation groove inside the filter housing, and the lever is pushed in the opposite direction, which will drive the internal thread ring in the opposite direction. Rotate, the internal thread ring is connected with the thread of the thread groove and moves downward along the axis of the thread groove. During the movement, the bottom end of the internal thread ring contacts the inclined surface of the clamping column and generates an extrusion force. As the internal thread ring continues to rotate, the extrusion force applied to the clamping column gradually contacts the filter element and compresses the spring at the same time. Finally, the clamping column completely contacts the filter element along the inner wall of the sliding hole, and the filter element is firmly fixed in the installation groove through the self-locking of the threads of the internal thread ring and the thread groove, thereby greatly simplifying the maintenance process of the duplex oil filter, reducing time consumption and operation complexity, and improving the maintenance efficiency of the duplex oil filter and the convenience of user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a partial cross-sectional structural schematic diagram of the front side of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0022] Figure 4 It is a schematic diagram of the structure enlarged at B of the utility model.

[0023] In the figure: 1 sealing cover, 2 filter housing, 3 drain pipe, 4 valve, 5 liquid inlet pipe 1, 6 liquid outlet pipe 1, 7 supporting legs, 8 liquid inlet pipe 2, 9 liquid outlet pipe 2, 10 liquid inlet pipe 3, 11 liquid outlet pipe 3, 12 valve body, 13 reversing valve, 14 filter element, 15 mounting mechanism, 151 lever, 152 internal thread ring, 153 thread groove, 154 clamping column, 155 spring, 156 sliding hole, 157 fixing ring, 16 mounting seat, 17 mounting groove, 18 drain port, 19 filter screen. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 , This embodiment provides a technical solution: a duplex oil filter, comprising a filter housing 2, a valve body 12 and a mounting seat 16;

[0026] Filter housing 2: There are two of them, and the tops of the two filter housings 2 are both installed with covers 1 by bolts, and the upper ends of the opposite sides of the outer arc surfaces of the two filter housings 2 are respectively fixedly connected with liquid inlet pipes 5, and the lower ends of the opposite sides of the outer arc surfaces of the two filter housings 2 are respectively fixedly connected with liquid outlet pipes 6, and also include sewage pipes 3, which are fixedly connected to the opposite sides of the outer arc surfaces of the two filter housings 2. The middle parts of the sewage pipes 3 are connected in series with valves 4 to discharge the filtered impurities through the sewage pipes 3, and the lower ends of the outer surfaces of the filter housings 2 are fixedly connected with evenly distributed support legs 7;

[0027] The valve body 12: The left and right sides of the upper end of the outer surface of the valve body 12 are respectively fixedly connected with the liquid inlet pipe 3 10, and the liquid inlet pipe 3 10 is installed with the laterally adjacent liquid inlet pipe 1 5 through flanges. The left and right sides of the lower end of the outer surface of the valve body 12 are fixedly connected with the liquid outlet pipe 3 11, and the liquid outlet pipe 3 11 is connected with the laterally adjacent liquid outlet pipe 1 6 through flanges. A reversing valve 13 is provided on the valve body 12. The upper side of the front end of the outer surface of the valve body 12 is fixedly connected with the liquid inlet pipe 2 8, and the lower side of the front end of the outer surface of the valve body 12 is fixedly connected with the liquid outlet pipe 2 9. The external oil is transported to the inside of the valve body 12 through the liquid inlet pipe 2 8 on the valve body 12, and then the flow ports of the liquid outlet pipe 1 6, the liquid outlet pipe 2 9 and the liquid outlet pipe 3 11 are closed through the reversing valve 13 to ensure that the oil only flows to the liquid inlet pipe 1 5 of the filter housing 2. The oil enters the filter housing 2 through the liquid inlet pipe 1 5 and passes through the mounting mechanism 15 The filter element 14 in the inner part performs preliminary filtration, and the filtered oil flows to the drain port 18, and is further filtered through the filter screen 19 in the drain port 18. Then, by opening the reversing valve 13, the filtered clean oil passes through the outlet pipe 1 6 and the outlet pipe 3 11 respectively, and flows back to the inside of the valve body 12. The clean oil is finally taken out of the double oil filter through the outlet pipe 2 9 at the front end of the valve body 12. In addition, since both filter housings 2 are equipped with oil filter components, one of the filter housings 2 can be used as a working oil filter, which is responsible for actually filtering the oil entering the lubrication system, and the other filter housing 2 can be used as a standby oil filter, which is in a standby state. The oil flow direction is controlled by the reversing valve 13. When the working filter housing 2 needs maintenance or replacement of the filter element 14, the reversing valve 13 will switch to make the standby filter housing 2 take over its position as the working oil filter.

[0028] The mounting seat 16 is respectively arranged and installed at the lower end of the inner wall of the two filter housings 2, and also includes a drain port 18. The drain port 18 is opened in the middle of the mounting seat 16. The inner wall of the drain port 18 is provided with a filter screen 19. The end of the mounting seat 16 close to the center of the filter housing 2 is provided with a mounting groove 17. The inside of the mounting groove 17 is installed with a filter element 14 through a mounting mechanism 15. The mounting mechanism 15 includes a clamping column 154, a spring 155, a sliding hole 156 and a fixing ring 157. The sliding holes 156 are opened on the inner wall of the mounting groove 17. The inner wall of the sliding hole 156 is slidably connected with a clamping column 154. The end of the clamping column 154 close to the center of the mounting seat 16 is matched with the outer surface of a filter element 14 for installation. The clamping column 154 is away from the center of the mounting seat 16. One end is fixedly connected with a fixing ring 157, and the fixing ring 157 is slidably connected with the inner wall of the adjacent sliding hole 156. A spring 155 is fixedly connected between the end of the fixing ring 157 close to the center of the mounting seat 16 and the inner wall of the adjacent sliding hole 156. The spring 155 is sleeved on the outer surface of the clamping column 154, and the end of the clamping column 154 is provided with a chamfered structure. The mounting mechanism 15 also includes an internal threaded ring 152 and a threaded groove 153. The threaded groove 153 is opened at one end of the mounting seat 16 away from the center of the filter housing 2. The inner part of the threaded groove 153 is threadedly connected with the internal threaded ring 152, and the internal threaded ring 152 is installed in cooperation with the vertically adjacent clamping column 154. The mounting mechanism 15 also includes a lever 151, and the lever 151 is fixedly connected to The upper surface of the internal thread ring 152, the mounting seat 16, the filter element 14 and the mounting mechanism 15 are all located above the liquid outlet pipe 6. When the filter element 14 needs to be maintained or replaced, first, the bolts on the filter housing 2 are removed to release the fixation of the cover 1, and then the lever 151 is toggled to drive the internal thread ring 152 to rotate. The internal thread ring 152 is connected with the thread groove 153 by a thread and moves upward along the axis of the thread groove 153. During the movement, the bottom end of the internal thread ring 152 and the inclined surface of the clamping column 154 are squeezed out, and at the same time, the spring 155 releases the elastic energy storage, causing the clamping column 154 to reset along the inner wall of the sliding hole 156. After the clamping column 154 is reset, the squeeze fixation of the filter element 14 is canceled, so that the filter element can be easily removed from the inside of the filter housing 2. After the filter element 14 to be replaced is taken out, the new filter element 14 is placed in the mounting groove 17 inside the filter housing 2, and the lever 151 is toggled in the opposite direction, which will drive the internal thread ring 152 to rotate in the opposite direction. The internal thread ring 152 is connected with the thread groove 153 by a thread and moves downward along the axis of the thread groove 153. During the movement, the bottom end of the internal thread ring 152 contacts the inclined surface of the clamping column 154 and generates an extrusion force. As the internal thread ring 152 continues to rotate, the extrusion force applied to the clamping column 154 gradually contacts the filter element 14, and the spring 155 is compressed at the same time. Finally, the clamping column 154 is completely in contact with the filter element 14 along the inner wall of the sliding hole 156, and is self-locked by the threads of the internal thread ring 152 and the thread groove 153.The filter element 14 is firmly fixed in the mounting groove 17, so that the filter element can be easily replaced without complicated tools or equipment, making maintenance very convenient.

[0029] The working principle of a double oil filter provided by the utility model is as follows: first, the external oil is transported to the inside of the valve body 12 through the inlet pipe 2 8 on the valve body 12, and then the flow ports of the outlet pipe 1 6, the outlet pipe 2 9 and the outlet pipe 3 11 are closed through the reversing valve 13 to ensure that the oil only flows to the inlet pipe 1 5 of the filter housing 2, the oil enters the filter housing 2 through the inlet pipe 1 5, and is preliminarily filtered by the filter element 14 in the installation mechanism 15, the filtered oil flows to the discharge port 18, and is further filtered through the filter screen 19 in the discharge port 18, and then by opening the reversing valve 13, the filtered clean oil passes through the outlet pipe 1 6 and the outlet pipe 3 11 respectively, and flows back to the inside of the valve body 12, and the clean oil is filtered. The oil is finally taken out of the double oil filter through the outlet pipe 29 at the front end of the valve body 12, and the two filter housings 2 are equipped with oil filter components, so that one of the filter housings 2 can be used as a working oil filter, responsible for actually filtering the oil entering the lubrication system, and the other filter housing 2 can be used as a spare oil filter, which is on standby, and the oil flow direction is controlled by the reversing valve 13, and the filtered impurities are discharged through the drain pipe 3. When the working filter housing 2 needs maintenance or replacement of the filter element 14, the reversing valve 13 will switch to make the spare filter housing 2 take over its position as the working oil filter. However, when maintenance or replacement of the filter element 14 is required, first, remove the bolts on the filter housing 2 to release the fixing of its cover 1. The inner thread ring 152 is fixed, and then the lever 151 is toggled to drive the inner thread ring 152 to rotate. The inner thread ring 152 is connected with the thread groove 153 by a thread and moves upward along the axis of the thread groove 153. During the movement, the bottom end of the inner thread ring 152 and the inclined surface of the clamping column 154 are squeezed out, and at the same time, the spring 155 releases the elastic energy storage, causing the clamping column 154 to reset along the inner wall of the sliding hole 156. After the clamping column 154 is reset, the squeezing and fixing of the filter element 14 are cancelled, so that the filter element can be easily taken out from the inside of the filter housing 2. After the filter element 14 to be replaced is taken out, the new filter element 14 is placed in the mounting groove 17 inside the filter housing 2, and the lever 151 is toggled in the opposite direction, which will drive the inner thread ring 15 2 rotates in the opposite direction, and the internal thread ring 152 moves downward along the axis of the thread groove 153 through the thread connection with the thread groove 153. During the movement, the bottom end of the internal thread ring 152 contacts the inclined surface of the clamping column 154 and generates an extrusion force. As the internal thread ring 152 continues to rotate, the clamping column 154 is gradually contacted with the filter element 14 by the extrusion force applied, and the spring 155 is compressed at the same time. Finally, the clamping column 154 is completely in contact with the filter element 14 along the inner wall of the sliding hole 156, and the filter element 14 is firmly fixed in the installation groove 17 through the thread self-locking of the internal thread ring 152 and the thread groove 153, so that the filter element can be easily replaced without complicated tools or equipment, making maintenance very convenient.

[0030] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification 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 duplex oil filter, characterized in that: It comprises a filter housing (2), a valve body (12) and a mounting seat (16); Filter housings (2): There are two of them, the top ends of the two filter housings (2) are both equipped with a cover (1) by means of bolts, the upper ends of the two filter housings (2) on opposite sides of the outer arc surface are respectively fixedly connected with a liquid inlet pipe (5), and the lower ends of the two filter housings (2) on opposite sides of the outer arc surface are respectively fixedly connected with a liquid outlet pipe (6); The valve body (12) is fixedly connected to the liquid inlet pipe 3 (10) on both sides of the upper end of the outer surface thereof, and the liquid inlet pipe 3 (10) is installed with the liquid inlet pipe 1 (5) adjacent to the latter through flanges. The liquid outlet pipe 3 (11) is fixedly connected to the liquid outlet pipe 1 (6) adjacent to the former through flanges on both sides of the lower end of the outer surface of the valve body (12), and the liquid outlet pipe 3 (11) is connected with the liquid outlet pipe 1 (6) adjacent to the latter through flanges. A reversing valve (13) is provided on the valve body (12); The mounting seats (16) are respectively arranged and mounted on the lower ends of the inner walls of the two filter housings (2); one end of the mounting seats (16) close to the center of the filter housing (2) is provided with a mounting groove (17); and the inside of the mounting groove (17) is provided with a filter element (14) via a mounting mechanism (15).

2. A duplex oil filter according to claim 1, characterized in that: The upper side of the front end of the outer surface of the valve body (12) is fixedly connected to a second liquid inlet pipe (8), and the lower side of the front end of the outer surface of the valve body (12) is fixedly connected to a second liquid outlet pipe (9).

3. A duplex oil filter according to claim 1, characterized in that: It also comprises a sewage discharge pipe (3), wherein the sewage discharge pipe (3) is fixedly connected to the opposite sides of the outer arc surface of the two filter housings (2), and a valve (4) is connected in series in the middle of the sewage discharge pipe (3).

4. A duplex oil filter according to claim 1, characterized in that: It also comprises a liquid discharge port (18), wherein the liquid discharge port (18) is opened in the middle of the mounting seat (16), and the inner wall of the liquid discharge port (18) is provided with a filter screen (19).

5. A duplex oil filter according to claim 1, characterized in that: The mounting mechanism (15) comprises a clamping column (154), a spring (155), a sliding hole (156) and a fixing ring (157). The sliding holes (156) are all arranged on the inner wall of the mounting groove (17). The inner wall of the sliding hole (156) is slidably connected with the clamping column (154). One end of the clamping column (154) close to the center of the mounting seat (16) is matched with the outer surface of a filter element (14) for mounting. One end of the clamping column (154) away from the center of the mounting seat (16) is fixedly connected with the fixing ring (157). The fixing ring (157) is slidably connected with the inner wall of the adjacent sliding hole (156). A spring (155) is fixedly connected between one end of the fixing ring (157) close to the center of the mounting seat (16) and the inner wall of the adjacent sliding hole (156). The spring (155) is sleeved on the outer surface of the clamping column (154).

6. A duplex oil filter according to claim 5, characterized in that: The mounting mechanism (15) further comprises an internal thread ring (152) and a thread groove (153). The thread groove (153) is provided at one end of the mounting seat (16) away from the center of the filter housing (2). The interior of the thread groove (153) is threadedly connected to the internal thread ring (152). The internal thread ring (152) is mounted in cooperation with a vertically adjacent clamping column (154).

7. A duplex oil filter according to claim 6, characterized in that: The mounting mechanism (15) further comprises a lever (151), and the lever (151) is fixedly connected to the upper surface of the internal thread ring (152).

8. A duplex oil filter according to claim 1, characterized in that: The lower end of the outer surface of the filter housing (2) is fixedly connected with evenly distributed support legs (7).

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