A filter assembly that is easy to maintain

Abstract

The utility model discloses an easily maintainable filter assembly, including oil inlet pipe and oil outlet pipe, and be located on the switch valve of oil inlet pipe and oil outlet pipe, and two groups above parallel in the filter component of oil inlet pipe and oil outlet pipe, the filter component includes cylinder sleeve, filter seat, cover, bottom cover, connecting pipe, locking handle, separator, filter core, elastomer and water trap, the utility model discloses a purpose at to filter component parallel between oil inlet pipe and oil outlet pipe, when a certain filter component needs to replace filter core, will the switch valve of this filter component and oil inlet pipe, oil outlet pipe connection close, empties oil through water trap, and the locking handle can be opened bottom cover and replaces filter core by rotating and opening, realizes the replacement of filter core without stopping, and improves maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of filtration devices, and in particular to an easy-to-maintain filtration assembly. Background Technology

[0002] Filtration devices are key components for ensuring media cleanliness and extending equipment lifespan. Traditional filtration systems typically use a single filter connected in series in the pipeline. When the filter element needs to be replaced or maintenance is required, the machine must be shut down and the entire pipeline system emptied. For generator sets, whether used as backup power or primary power, unplanned shutdowns or prolonged maintenance can cause serious consequences such as power outages or production stoppages, directly reducing power supply reliability. Utility Model Content

[0003] To overcome the shortcomings of the prior art, the technical solution adopted by this utility model is: an easy-to-maintain filter assembly, including an oil inlet pipe and an oil outlet pipe, a switch valve provided on the oil inlet pipe and the oil outlet pipe, and two or more filter components connected in parallel to the oil inlet pipe and the oil outlet pipe. The filter components include a cylinder liner, a filter seat, a cover, a bottom cover, a connecting pipe, a locking handle, a separator, a filter element, an elastomer, and a drain valve. One end of the cylinder liner is detachably connected to the cover via the filter seat, and the other end is detachably connected to the bottom cover. The bottom cover is connected to the connecting pipe via the locking handle. The inner side of the filter seat is provided with an oil inlet passage and an oil outlet passage that are respectively connected to the oil inlet pipe and the oil outlet pipe. The oil inlet passage and the oil outlet passage are respectively connected to the separator and the connecting pipe. The connecting pipe is fitted with a filter element, and an elastomer is provided between the filter element and the filter seat. The bottom of the cover is provided with a drain valve. The outer side of the filter seat is provided with a through groove. The oil inlet passage is connected to the oil outlet passage in sequence via the separator, the through groove, the filter element, and the connecting pipe.

[0004] Using the above technical solution, when the oil enters the filter assembly from the inlet pipe, it undergoes preliminary oil-water separation through the spiral channel of the separator. The oil is then submerged in the filter element through the channel, and the filtered oil flows out from the outlet pipe. At this point, excess water is concentrated at the bottom of the cover and can be periodically discharged through the drain valve, thus achieving oil filtration. Since the filter assembly is connected in parallel between the inlet and outlet pipes, when a filter assembly needs to have its filter element replaced, the switch valve connecting the filter assembly to the inlet and outlet pipes is closed, the oil is drained through the drain valve, and the bottom cover can be opened and the filter element replaced by rotating the locking handle. This allows for filter element replacement without stopping the machine, improving maintenance efficiency.

[0005] The present invention is further configured such that the filter seat includes an integrally formed outer ring and a central tube, and a branch tube connected between the outer ring and the central tube. The filter seat is provided with a guide plate at the intersection of the branch tube and the central tube, and the oil inlet and outlet channels are formed by the guide plate. The through groove is provided between the outer ring and the central tube.

[0006] Furthermore, the outer ring is provided with threaded hole one and threaded hole two for connecting the oil inlet pipe and the oil outlet pipe, and the two ends of the central tube are provided with studs and threaded hole three for connecting the connecting pipe and the separator.

[0007] Furthermore, the outer ring is provided with four threaded holes distributed in a circle on its outer side, the cover is provided with through holes that are compatible with the three threaded holes, the outer ring and the bottom cover are respectively provided with a first groove and a second groove for locking the two ends of the cylinder liner, the bottom cover is provided with a mounting hole, and the locking handle passes through the mounting hole and is threaded to the connecting pipe.

[0008] By adopting the above technical solution, the filter seat is integrally cast and has the function of connecting core components such as cylinder liners and covers. It also naturally forms oil passages with oil inlet, oil outlet and through grooves, realizing functional integration, reducing the number of required parts and reducing installation difficulty.

[0009] The present invention is further configured such that the filter element is sleeved on the connecting pipe, the connecting pipe has a central hole and a side hole communicating with the central hole, and the oil outlet is communicating with the central hole.

[0010] Using the above technical solution, the connecting pipe is used to clamp the cylinder liner between the filter seat and the bottom cover. After the oil is filtered by the filter element from the outside to the inside, it flows to the central hole through the side holes, so that the clean oil on the inner circumference of the filter element can enter the central hole along the multiple side holes.

[0011] The present invention is further configured such that the elastic body is a tower-shaped spring, the filter element is provided with a positioning groove adapted to the tower-shaped spring, the small diameter end of the tower-shaped spring abuts against the filter seat, and the large diameter end of the tower-shaped spring abuts against the positioning groove.

[0012] By adopting the above technical solution, the valve core is always in contact with the bottom cover by the tower-shaped spring, which prevents the valve core from axially shaking relative to the connecting pipe due to equipment vibration, prevents unfiltered oil from entering the oil outlet, and ensures the stability of the filtration structure.

[0013] The present invention is further configured such that the separator is provided with a float ball for controlling the height of the oil-water interface.

[0014] Using the above technical solution, the float will rise with the water level. When the oil-water interface is close to the filter seat, the float will rise and block the oil inlet. At this time, the oil cannot continue to enter, effectively preventing water from entering the filter element and avoiding the filter element from being affected by prolonged immersion in water.

[0015] The embodiments of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the filter component in this utility model;

[0018] Figure 3 This is a perspective view of the filter base in this utility model;

[0019] Figure 4 This is a cross-sectional view of the filter base in this utility model;

[0020] Figure 5 This is a perspective view of the cover body in this utility model;

[0021] Figure 6 This is the utility model Figure 2 A magnified view of a section at point A in the middle;

[0022] Figure 7 This is the utility model Figure 2 A magnified view of a section at point B in the middle;

[0023] Wherein: 101-oil inlet pipe, 102-oil outlet pipe, 103-switch valve, 104-filter assembly, 1-cylinder liner, 2-filter seat, 3-cover, 4-bottom cover, 5-connecting pipe, 6-locking handle, 7-separator, 8-filter element, 9-elastic body, 10-drain valve, 11-oil inlet passage, 12-oil outlet passage, 13-through groove, 14-float ball, 20-slot one, 21-outer ring, 22-center pipe, 23-branch pipe, 24-guide plate, 25-threaded hole one, 26-threaded hole two, 27-stud, 28-threaded hole three, 29-threaded hole four, 31-through hole, 40-slot two, 41-mounting hole, 51-center hole, 52-side hole, 81-positioning groove; Detailed Implementation

[0024] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.

[0025] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the intentions or conventions of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.

[0026] like Figure 1-3As shown, this utility model provides an easy-to-maintain filter assembly, including an oil inlet pipe 101 and an oil outlet pipe 102, a switch valve 103 disposed on the oil inlet pipe 101 and the oil outlet pipe 102, and two or more filter components 104 connected in parallel to the oil inlet pipe 101 and the oil outlet pipe 102. The filter component 104 includes a cylinder liner 1, a filter seat 2, a cover 3, a bottom cover 4, a connecting pipe 5, a locking handle 6, a separator 7, a filter element 8, an elastomer 9, and a drain valve 10. One end of the cylinder liner 1 is detachably connected to the cover 3 through the filter seat 2, and the other end is detachable. The filter seat 2 is connected to a bottom cover 4, which is connected to a connecting pipe 5 via a locking handle 6. The filter seat 2 is provided with an oil inlet channel 11 and an oil outlet channel 12, which are respectively connected to an oil inlet pipe 101 and an oil outlet pipe 102. The oil inlet channel 11 and the oil outlet channel 12 are respectively connected to a separator 7 and a connecting pipe 5. The connecting pipe 5 is fitted with a filter element 8, and an elastic body 9 is provided between the filter element 8 and the filter seat 2. The bottom of the cover 3 is provided with a drain valve 10, and the outer side of the filter seat 2 is provided with a through groove 13. The oil inlet channel 11 is connected to the oil outlet channel 12 in sequence via the separator 7, the through groove 13, the filter element 8, and the connecting pipe 5.

[0027] In this embodiment, the filter seat 2 includes an integrally formed outer ring portion 21 and a central tube 22, and a branch pipe 23 connecting the outer ring portion 21 and the central tube 22. A guide plate 24 is provided at the intersection of the branch pipe 23 and the central tube 22, and an oil inlet passage 11 and an oil outlet passage 12 are formed through the guide plate 24. A through groove 13 is provided between the outer ring portion 21 and the central tube 22. The outer ring portion 21 is provided with a threaded hole 25 and a threaded hole 26 for connecting the oil inlet pipe 101 and the oil outlet pipe 102. The two ends of the central tube 22 are provided with stud portions 27 and threaded holes 28 for connecting the connecting pipe 5 and the separator 7. The outer side of 21 is provided with four threaded holes 29 distributed in a circle. The cover 3 is provided with a through hole 31 that matches the three threaded holes 28. The outer ring 21 and the bottom cover 4 are respectively provided with a first groove 20 and a second groove 40 for snapping the two ends of the cylinder liner 1. The bottom cover 4 is provided with a mounting hole 41. The locking handle 6 passes through the mounting hole 41 and is threaded to the connecting pipe 5. The filter seat 2 is integrally cast and has the function of connecting the cylinder liner 1, the cover 3 and other core components. It also naturally forms the oil passage features of the oil inlet passage 11, the oil outlet passage 12 and the through groove 13, realizing functional integration, reducing the number of required parts and reducing the installation difficulty.

[0028] In this embodiment, the filter element 8 is sleeved on the connecting pipe 5. The connecting pipe 5 has a central hole 51 and a side hole 52 connected to the central hole 51. The oil outlet 12 is connected to the central hole 51. The connecting pipe 5 is used to clamp the cylinder liner 1 between the filter seat 2 and the bottom cover 4. After the oil is filtered by the filter element 8 from the outside to the inside, it flows to the central hole 51 through the side hole 52, so that the clean oil on the inner circumference of the filter element 8 can enter the central hole 51 along the multi-point side hole 52.

[0029] In this embodiment, the elastic body 9 is a tower-shaped spring, and the filter element 8 is provided with a positioning groove 81 that matches the tower-shaped spring. The small diameter end of the tower-shaped spring abuts against the filter seat 2, and the large diameter end of the tower-shaped spring abuts against the positioning groove 81. The tower-shaped spring ensures that the valve core always abuts against the bottom cover 4, preventing the valve core from axially shaking relative to the connecting pipe 5 due to equipment vibration, preventing unfiltered oil from entering the oil outlet 12, and ensuring the stability of the filter structure.

[0030] In this embodiment, the separator 7 is equipped with a float ball 14 for controlling the height of the oil-water interface. The float ball 14 will rise with the height of the water surface. When the height of the oil-water interface is close to the filter seat 2, the float ball 14 rises and blocks the oil inlet channel 11. At this time, the oil cannot continue to enter, effectively preventing water from entering the filter element 8 and avoiding the filter element 8 from being affected by being soaked in water for a long time.

[0031] The working principle of this utility model is as follows: when the oil enters the filter assembly 104 from the oil inlet pipe 101, it achieves preliminary oil-water separation through the spiral channel of the separator 7. The oil is then submerged in the filter element 8 through the through groove 13. The filtered oil then flows out from the oil outlet pipe 102. At this time, excess water is concentrated at the bottom of the cover 3 and can be periodically discharged through the drain valve 10, thereby achieving oil filtration. Since the filter assembly 104 is connected in parallel between the oil inlet pipe 101 and the oil outlet pipe 102, when a filter assembly 104 needs to replace the filter element 8, the power of the oil pump is reduced, the switch valve 103 connecting the filter assembly 104 to the oil inlet and outlet pipes 102 is closed, the oil is drained through the drain valve 10, and the bottom cover 4 can be opened and the filter element 8 can be replaced by rotating and opening the locking handle 6. This allows for filter element replacement without stopping the machine, improving maintenance efficiency.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An easy-to-maintain filter assembly, characterized in that, The system includes an inlet pipe (101) and an outlet pipe (102), a switch valve (103) installed on the inlet pipe (101) and the outlet pipe (102), and two or more filter assemblies (104) connected in parallel to the inlet pipe (101) and the outlet pipe (102). The filter assembly (104) includes a cylinder liner (1), a filter seat (2), a cover (3), a bottom cover (4), a connecting pipe (5), a locking handle (6), a separator (7), a filter element (8), an elastomer (9), and a drain valve (10). One end of the cylinder liner (1) is detachably connected to the cover (3) via the filter seat (2), and the other end is detachably connected to the bottom cover (4). The bottom cover (4) is connected to the bottom cover via a lock. The handle (6) is connected to the connecting pipe (5). The filter seat (2) is provided with an oil inlet channel (11) and an oil outlet channel (12) respectively connected to the oil inlet pipe (101) and the oil outlet pipe (102). The oil inlet channel (11) and the oil outlet channel (12) are respectively connected to the separator (7) and the connecting pipe (5). The connecting pipe (5) is fitted with a filter element (8). An elastic body (9) is provided between the filter element (8) and the filter seat (2). The bottom of the cover (3) is provided with a drain valve (10). The outside of the filter seat (2) is provided with a through groove (13). The oil inlet channel (11) is connected to the oil outlet channel (12) in sequence through the separator (7), the through groove (13), the filter element (8), and the connecting pipe (5).

2. The easy-to-maintain filter assembly according to claim 1, characterized in that: The filter seat (2) includes an integrally formed outer ring (21) and a central tube (22), and a branch pipe (23) connecting the outer ring (21) and the central tube (22). The filter seat (2) is provided with a guide plate (24) at the intersection of the branch pipe (23) and the central tube (22), and the oil inlet channel (11) and the oil outlet channel (12) are formed by the guide plate (24). The through groove (13) is provided between the outer ring (21) and the central tube (22).

3. The easy-to-maintain filter assembly according to claim 2, characterized in that: The outer ring (21) is provided with threaded hole one (25) and threaded hole two (26) for connecting the oil inlet pipe (101) and the oil outlet pipe (102). The two ends of the central pipe (22) are provided with stud part (27) and threaded hole three (28) for connecting the connecting pipe (5) and the separator (7).

4. The easy-to-maintain filter assembly according to claim 3, characterized in that: The outer ring (21) has four threaded holes (29) arranged in a circular pattern on its outer side. The cover (3) has a through hole (31) that matches the threaded hole (28). The outer ring (21) and the bottom cover (4) are respectively provided with a first groove (20) and a second groove (40) for locking the two ends of the cylinder liner (1). The bottom cover (4) is provided with a mounting hole (41). The locking handle (6) passes through the mounting hole (41) and is threaded to the connecting pipe (5).

5. The easy-to-maintain filter assembly according to claim 4, characterized in that: The filter element (8) is sleeved on the connecting pipe (5). The connecting pipe (5) has a central hole (51) and a side hole (52) connected to the central hole (51). The oil outlet (12) is connected to the central hole (51).

6. The easy-to-maintain filter assembly according to claim 1, characterized in that: The elastic body (9) is a tower-shaped spring, and the filter element (8) is provided with a positioning groove (81) that is adapted to the tower-shaped spring. The small diameter end of the tower-shaped spring abuts against the filter seat (2), and the large diameter end of the tower-shaped spring abuts against the positioning groove (81).

7. The easy-to-maintain filter assembly according to claim 1, characterized in that: The separator (7) is equipped with a float (14) for controlling the height of the oil-water interface.

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