A duplex oil filter

Abstract

The utility model relates to oil filter equipment technical field especially a kind of double filter oil device, including first filter, second filter, fixed installation is communicated with between first filter, second filter component, the communicating component includes shell, inner tube rotationally connected in shell, the shell has oil inlet, oil outlet, rotating inner tube can make oil inlet, first filter, oil outlet intercommunication, or rotating the inner tube can make oil inlet, second filter, oil outlet intercommunication.This device by setting rotatable inner tube in shell, make the intercommunication between oil inlet and first filter, second filter can be switched by single rotation action.Compared with the background art, the present scheme can simplify the operation steps, reduce the risk of misoperation in switching process, improve the switching efficiency, make the oil filtering process more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of oil filtration equipment technology, and in particular to a dual oil filtration device. Background Technology

[0002] Oil filtration devices are generally used in hydraulic systems to filter impurities in the oil. Oil filters are divided into single-cylinder and double-cylinder structures. When replacing the filter element of a single-cylinder filter, the machine needs to be stopped. The double-cylinder structure was designed to deal with scenarios where the machine cannot be stopped.

[0003] For example, the prior art disclosed in (announcement) number CN103801144A is a dual-switching filter. Although it can replace the filter element without stopping the machine, the above device requires multiple separate control valves to control the switching of each flow channel, which is more troublesome for workers to operate. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing dual-cylinder filtration equipment requiring multiple valves and complicated switching control, and to propose a dual-stage oil filtration device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dual oil filtration device includes a first filter and a second filter, with a connecting component fixedly installed between the first filter and the second filter. The connecting component includes a housing and an inner cylinder rotatably connected inside the housing. The housing has an oil inlet and an oil outlet. Rotating the inner cylinder can connect the oil inlet, the first filter, and the oil outlet, or rotating the inner cylinder can connect the oil inlet, the second filter, and the oil outlet.

[0007] The outer shell has a first through hole, a third through hole, a fifth through hole, and a seventh through hole. The first through hole is connected to the first oil inlet of the first filter, the third through hole is connected to the first oil outlet of the first filter, the fifth through hole is connected to the second oil inlet of the second filter, and the seventh through hole is connected to the second oil outlet of the second filter. Rotating the inner cylinder can connect the oil inlet, the first through hole, the first oil inlet, the first oil outlet, the third through hole, and the oil drain port, or rotating the inner cylinder can connect the oil inlet, the fifth through hole, the second oil inlet, the second oil outlet, the seventh through hole, and the oil drain port.

[0008] The outer peripheral wall of the inner cylinder is sealed to the inner peripheral wall of the outer shell. The inner cylinder has a channel and a plug is sealed and installed in the middle of the channel. The inner cylinder has a second through hole and a sixth through hole on one side of the plug, and a fourth through hole and an eighth through hole on the other side of the plug. Rotating the inner cylinder can connect the first through hole and the second through hole, as well as the third through hole and the fourth through hole, or rotating the inner cylinder can connect the first through hole and the second through hole, as well as the third through hole and the fourth through hole, the fifth through hole, the sixth through hole, and the seventh through hole and the eighth through hole.

[0009] A connecting rod is coaxially fixedly installed at one end of the inner cylinder. The connecting rod passes through the outer shell and the two are rotatably connected in a sealed manner. A handwheel is installed at the end of the connecting rod.

[0010] The present invention proposes a dual-stage oil filtration device, which has the following advantages: This device, by incorporating a rotatable inner cylinder within the outer casing, allows for switching between the oil inlet and the first and second filters via a single rotational motion. Compared to prior art methods that require the separate operation of multiple switching valves to complete filter switching, this solution simplifies the operation steps, reduces the risk of misoperation during switching, improves switching efficiency, and makes the oil filtration process more stable and reliable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the working structure of the first filter of this utility model;

[0012] Figure 2 This is a schematic diagram of the working structure of the second filter of this utility model;

[0013] Figure 3 This is a schematic diagram of the connecting component structure of this utility model.

[0014] In the diagram: First filter 1, First oil inlet 2, First oil outlet 3, Second filter 4, Second oil inlet 5, Second oil outlet 6, First through hole 7, Second through hole 8, Third through hole 9, Fourth through hole 10, Fifth through hole 11, Sixth through hole 12, Seventh through hole 13, Eighth through hole 14, Oil inlet port 15, Oil outlet port 16, Inner cylinder 17, Connecting rod 18, Handwheel 19, Outer shell 20, Plug 21. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-3A dual oil filtration device includes a first filter 1 and a second filter 4. A connecting component is fixedly installed between the first filter 1 and the second filter 4. The connecting component includes a housing 20 and an inner cylinder 17 rotatably connected inside the housing 20. The housing 20 has an oil inlet port 15 and an oil outlet port 16. Rotating the inner cylinder 17 can connect the oil inlet port 15, the first filter 1, and the oil outlet port 16, or rotating the inner cylinder 17 can connect the oil inlet port 15, the second filter 4, and the oil outlet port 16.

[0017] Reference Figures 1-3 The oil inlet 15 receives external oil and then enters the internal cavity of the outer casing 20. The inner cylinder 17 can rotate within the outer casing 20. (See reference...) Figure 1 When the inner cylinder 17 is in the first position, its internal channel connects the oil inlet port 15 to the inlet end of the first filter 1. After the oil is filtered by the first filter 1, it is discharged through another channel of the inner cylinder 17, connecting to the oil outlet port 16. When it is necessary to switch filters, refer to... Figure 2 The operator only needs to rotate the inner cylinder 17 to the second position, so that the oil inlet port 15 is connected to the inlet end of the second filter 4. After the oil is filtered by the second filter 4, it is discharged through the inner cylinder 17 and the oil outlet port 16. The oil can be guided and switched between the first filter 1 and the second filter 4 by changing the position of the inner cylinder 17.

[0018] This device, by incorporating a rotatable inner cylinder 17 within the outer casing 20, allows the connection between the oil inlet 15 and the first filter 1 and the second filter 4 to be switched via a single rotational motion. Compared to prior art methods that require the separate operation of multiple switching valves to complete filter switching, this solution simplifies the operation steps, reduces the risk of misoperation during switching, improves switching efficiency, and makes the oil filtration process more stable and reliable.

[0019] The outer casing 20 has a first through hole 7, a third through hole 9, a fifth through hole 11, and a seventh through hole 13. The first through hole 7 is connected to the first oil inlet 2 of the first filter 1, the third through hole 9 is connected to the first oil outlet 3 of the first filter 1, the fifth through hole 11 is connected to the second oil inlet 5 of the second filter 4, and the seventh through hole 13 is connected to the second oil outlet 6 of the second filter 4. Rotating the inner cylinder 17 can connect the oil inlet 15, the first through hole 7, the first oil inlet 2, the first oil outlet 3, the third through hole 9, and the oil outlet 16, or rotating the inner cylinder 17 can connect the oil inlet 15, the fifth through hole 11, the second oil inlet 5, the second oil outlet 6, the seventh through hole 13, and the oil outlet 16.

[0020] refer to Figure 1After the oil enters the housing 20 through the oil inlet 15, it is guided and distributed by the inner cylinder 17, which is rotatably connected inside the housing 20. When the inner cylinder 17 is in the first position, its internal channels sequentially connect the oil inlet 15, the first through hole 7, and the first oil inlet 2, allowing the oil to enter the first filter 1 for filtration. The filtered oil then sequentially passes through the first oil outlet 3 and the third through hole 9, connecting to the oil outlet 16 for output. (Reference) Figure 2 When it is necessary to switch the filtration path, the operator rotates the inner cylinder 17 to the second position. The inner cylinder 17 can then sequentially connect the oil inlet port 15, the fifth through hole 11, and the second oil inlet port 5, allowing the oil to enter the second filter 4 for filtration. The filtered oil then sequentially passes through the second oil outlet port 6, the seventh through hole 13, and the oil drain port 16 for discharge. By changing the position of the inner cylinder 17, the working state switching between the first filter 1 and the second filter 4 can be completed.

[0021] In one embodiment, the outer peripheral wall of the inner cylinder 17 is sealed to the inner peripheral wall of the outer shell 20. The inner cylinder 17 has a channel, and a plug 21 is sealed and installed in the middle of the channel. A second through hole 8 and a sixth through hole 12 are opened on the periphery of one end of the inner cylinder 17 near the plug 21. A fourth through hole 10 and an eighth through hole 14 are opened on the periphery of the other end of the inner cylinder 17 near the plug 21. Rotating the inner cylinder 17 can connect the first through hole 7, the second through hole 8, the third through hole 9, and the fourth through hole 10. Alternatively, rotating the inner cylinder 17 can connect the first through hole 7, the second through hole 8, the third through hole 9, the fourth through hole 10, the fifth through hole 11, the sixth through hole 12, the seventh through hole 13, and the eighth through hole 14. A connecting rod 18 is coaxially fixedly installed at one end of the inner cylinder 17. The connecting rod 18 passes through the outer shell 20 and the two are sealed and rotatably connected. A handwheel 19 is installed at the end of the connecting rod 18.

[0022] Reference Figures 1-3 The oil first enters the internal cavity of the outer casing 20 through the oil inlet 15. An inner cylinder 17 is rotatably connected inside the outer casing 20. The outer peripheral wall of the inner cylinder 17 is sealed to the inner peripheral wall of the outer casing 20. The inner cylinder 17 has a channel, with a plug 21 in the middle of the channel, creating independent areas on both sides of the plug 21. The inner cylinder 17 has a second through hole 8, a sixth through hole 12, a fourth through hole 10, and an eighth through hole 14 distributed at both ends, corresponding to the first through hole 7, the third through hole 9, the fifth through hole 11, and the seventh through hole 13 on the outer casing 20.

[0023] The operator drives the connecting rod 18 to rotate via the handwheel 19. The connecting rod 18 is rotatably connected to the outer casing 20 in a sealed manner, and its rotation drives the inner cylinder 17 to rotate synchronously. When the inner cylinder 17 is in different angular positions, the through holes on its periphery form different communication combinations with the through holes on the outer casing 20, thereby realizing the switching of the oil flow direction.

[0024] When the inner cylinder 17 rotates to the first position, the oil inlet 15 connects sequentially to the first through hole 7 and the first oil inlet 2, allowing the oil to enter the first filter 1 for filtration. The filtered oil then passes sequentially through the first oil outlet 3 and the third through hole 9, connecting to the oil outlet 16 and being discharged. In this position, the second through hole 8 of the inner cylinder 17 connects to the first through hole 7, and the fourth through hole 10 connects to the third through hole 9, thus realizing the complete oil inlet and outlet process of the first filter 1.

[0025] When the inner cylinder 17 rotates to the second position, the oil inlet 15 connects sequentially to the fifth through hole 11 and the second oil inlet 5, allowing the oil to enter the second filter 4 for filtration. The filtered oil then passes sequentially through the second oil outlet 6 and the seventh through hole 13, connecting to the oil outlet 16 for output. In this position, the sixth through hole 12 of the inner cylinder 17 connects to the fifth through hole 11, and the eighth through hole 14 connects to the seventh through hole 13, thus forming the complete flow channel of the second filter 4.

[0026] By rotating the inner cylinder 17 within the outer shell 20, the entire switching process can be completed simply by the operator turning the handwheel 19. There is no need to adjust multiple valves in the external pipeline one by one, thus achieving stable and reliable dual-path filtration switching and making it more convenient to maintain and replace the filter element.

[0027] It should be noted that the outer peripheral wall of the inner cylinder 17 and the inner peripheral wall of the outer shell 20 are sealed together by a sealing ring or sealing surface to ensure that no oil flow occurs when the inner cylinder 17 rotates between different positions; the connecting rod 18 is fixed coaxially with the inner cylinder 17, and the operator drives the connecting rod 18 to rotate by turning the handwheel 19, thereby realizing the positioning and switching of the inner cylinder 17 within a preset angle range; the inner cylinder 17 corresponds to specific through hole alignment relationships at different positions, so that the inlet and outlet on the non-working side are completely isolated, ensuring that the oil flows only through the selected filter path.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual oil filtration device, comprising a first filter (1) and a second filter (4), wherein a connecting component is fixedly installed between the first filter (1) and the second filter (4), characterized in that, The connecting component includes a housing (20) and an inner cylinder (17) rotatably connected inside the housing (20). The housing (20) has an oil inlet (15) and an oil outlet (16). Rotating the inner cylinder (17) can connect the oil inlet (15), the first filter (1), and the oil outlet (16), or rotating the inner cylinder (17) can connect the oil inlet (15), the second filter (4), and the oil outlet (16).

2. The dual oil filtration device according to claim 1, characterized in that, The outer shell (20) has a first through hole (7), a third through hole (9), a fifth through hole (11), and a seventh through hole (13). The first through hole (7) is connected to the first oil inlet (2) of the first filter (1). The third through hole (9) is connected to the first oil outlet (3) of the first filter (1). The fifth through hole (11) is connected to the second oil inlet (5) of the second filter (4). The seventh through hole (13) is connected to the second oil outlet (6) of the second filter (4). Rotating the inner cylinder (17) can connect the oil inlet (15), the first through hole (7), the first oil inlet (2), the first oil outlet (3), the third through hole (9), and the oil outlet (16). Alternatively, rotating the inner cylinder (17) can connect the oil inlet (15), the fifth through hole (11), the second oil inlet (5), the second oil outlet (6), the seventh through hole (13), and the oil outlet (16).

3. The dual oil filtration device according to claim 2, characterized in that, The outer peripheral wall of the inner cylinder (17) is sealed and assembled with the inner peripheral wall of the outer shell (20). The inner cylinder (17) has a channel and a plug (21) is sealed and installed in the middle of the channel. The inner cylinder (17) has a second through hole (8) and a sixth through hole (12) on one side of the plug (21). The inner cylinder (17) has a fourth through hole (10) and an eighth through hole (14) on the other side of the plug (21). Rotating the inner cylinder (17) can connect the first through hole (7), the second through hole (8), the third through hole (9), and the fourth through hole (10). Alternatively, rotating the inner cylinder (17) can connect the first through hole (7), the second through hole (8), the third through hole (9), the fourth through hole (10), the fifth through hole (11), the sixth through hole (12), the seventh through hole (13), and the eighth through hole (14).

4. A dual oil filtration device according to claim 3, characterized in that, A connecting rod (18) is coaxially fixedly installed at one end of the inner cylinder (17). The connecting rod (18) passes through the outer shell (20) and the two are rotatably connected in a sealed manner. A handwheel (19) is installed at the end of the connecting rod (18).

Images