An oil filter with oil draining function

Abstract

The present application provides an oil filter with an oil draining function, comprising: a filter body and an oil pipeline, the oil pipeline comprising a first oil inlet assembly and a second oil inlet assembly, the first oil inlet assembly comprising a first oil inlet pipe, a first oil outlet pipe and a first oil discharge pipe, relating to the technical field of filter housings, wherein when the reversing shaft moves to the middle position, the oil inlet channel is divided into two routes to enter the reversing shaft, one of which enters the two filter cartridges for filtration and then enters the oil outlet channel and then merges. The other oil inlet channel enters the dead space, so at this time all the oil volume passes through the first oil inlet channel into the two filter cartridges. The oil drain channel does not work at this time. When the reversing shaft rotates, after the two oil inlet channels are divided into two routes, the first oil inlet channel is only connected to the pre-filter oil channel of one of the filter cartridges, and flows into the filter cartridge for filtration and then enters the post-filter oil channel. The second oil inlet channel directly enters the oil drain channel, and the oil flows back to the oil tank.

Description

Technical Field

[0001] The invention relates to the technical field of filter housings, in particular to an oil filter with an oil draining function. Background Art

[0002] The oil filter plays a vital role in the lubrication system. It plays a decisive role in the accuracy of the oil entering the engine body. Ensuring the complete and good filtration of the oil is the basis for achieving this function. Therefore, it is extremely important to ensure the stability of the oil pressure during the filtration process.

[0003] Traditional dual-action oil filters with a reversing function operate both oil filter cartridges when the reversing handle is in the center position. When the reversing handle is in the left or right position, only one oil filter cartridge operates, allowing the other inactive filter cartridge to be replaced. This switching of the reversing handle causes the oil flow rate entering the filter to double, causing fluctuations in the oil pressure of the entire diesel engine system. Summary of the Invention

[0004] In order to overcome the problem of exponential changes in the oil flow rate of the existing filter, an embodiment of the present application provides an oil filter with an oil drain function. When the reversing shaft moves to the middle position, the oil inlet channel enters the reversing shaft in two ways, one of which enters the two filter cartridges for filtration and then enters the oil outlet channel and merges. The other oil inlet channel enters the dead space, so at this time all the oil volume enters the two filter cartridges through the first oil inlet channel. The oil drain channel does not work at this time. When the reversing shaft rotates, the two oil inlet channels are divided into two, and the first oil inlet channel is only connected to the pre-filter oil channel of one of the filter cartridges, and flows into the filter cartridge for filtration and then enters the post-filter oil channel. The second oil inlet channel directly enters the oil drain channel, and the oil flows back to the oil tank.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] An oil filter with an oil drain function comprises: a filter body, an oil pipeline and a filtering mechanism, wherein the filter body is used to transfer the oil; the oil pipeline is arranged outside the filter body and is used to transport the oil;

[0007] Among them, the oil circuit pipeline includes a first oil inlet assembly and a second oil inlet assembly, the first oil inlet assembly includes a first oil inlet pipe, a first oil outlet pipe and a first oil unloading pipe, and the first oil inlet pipe, the first oil outlet pipe and the first oil unloading pipe are all installed on the outside of the filter body.

[0008] The second oil inlet assembly includes a second oil inlet pipe, a second oil discharge pipe, and a second oil outlet pipe. The second oil inlet pipe, the second oil discharge pipe, and the second oil outlet pipe are all installed on the outside of the filter body and are arranged symmetrically with the first oil inlet assembly. The second oil inlet pipe, the second oil discharge pipe, and the second oil outlet pipe are arranged clockwise in sequence. The first oil discharge pipe and the second oil discharge pipe are provided on a side of the second oil inlet pipe close to the first oil discharge pipe, ensuring that when the first filter cartridge and the second filter cartridge are working simultaneously, the oil flow is distributed and enters the first filter cartridge and the second filter cartridge. When one of the filter cartridges is working, the other half of the oil flow is discharged through the first oil discharge pipe or the second oil discharge pipe, ensuring that the flow entering the first filter cartridge or the second filter cartridge remains unchanged.

[0009] The filter body includes a filter housing, which is a hollow structure. A reversing shaft is provided inside the filter housing. The reversing shaft is an irregular structure. The reversing shaft has four corners, all of which are arc-shaped structures. The reversing shaft is recessed inside the filter housing. A reversing handle is provided at the axis of the reversing shaft, and the reversing handle and the reversing shaft are vertical structures. When the reversing shaft moves to the middle position, the oil inlet channel is divided into two paths and enters the interior of the reversing shaft. One of the paths is a first oil inlet pipe that enters the first filter cartridge and the second filter cartridge and then enters the oil outlet channel after filtration and merges. The other path is a second oil inlet pipe that enters the dead space. Therefore, at this time, all the engine oil passes through the first oil inlet channel. When the reversing shaft rotates, after the two oil inlet channels are divided into two paths, the first oil inlet pipe is only connected with the second branch pipe of the first filter cartridge, flows into the filter cartridge housing, is filtered, enters the first branch pipe, enters the first oil outlet pipe through the first branch pipe and is discharged, and the second oil inlet pipe directly enters the interior of the second oil unloading pipe.

[0010] Preferably, the first oil inlet pipe, the first oil outlet pipe and the first oil unloading pipe are arranged clockwise in sequence, and the first oil inlet pipe is located at the acute angle where the first filter cartridge, the second filter cartridge and the filter body intersect.

[0011] Preferably, a filtering mechanism is provided at a symmetrical position of the filter body, which includes a first filter cartridge and a second filter cartridge. Through the arrangement of the first filter cartridge and the second filter cartridge, the engine oil can be filtered under the action of the first filter cartridge and the second filter cartridge. The first filter cartridge and the second filter cartridge are symmetrically arranged on both sides of the filter housing. The first filter cartridge includes a filter cartridge housing, a first branch pipe and a second branch pipe. A first branch pipe is provided on the lower side of the filter cartridge housing, and a second branch pipe is provided on the lower side of the filter cartridge housing away from the first branch pipe. The first branch pipe and the second branch pipe are fixedly connected to the filter cartridge housing. The first branch pipe and the second branch pipe are both hollow cylindrical structures. The first branch pipe and the second branch pipe are respectively an oil inlet branch pipe and an oil outlet branch pipe.

[0012] The advantages of the embodiments of the present application are:

[0013] 1. In the present invention, when the reversing shaft moves to the middle position, the oil inlet channel splits into two paths. One of the inlet channels flows into two filter cartridges for filtration before entering the outlet channel and merging. The other inlet channel enters the dead space, so all the engine oil flows through the first inlet channel and into the two filter cartridges. The drain channel is inoperative at this time. When the reversing shaft rotates, the two inlet channels split into two. The first inlet channel connects only to the pre-filtration channel of one of the filter cartridges, where the oil flows into the filter cartridge for filtration before entering the post-filtration channel. The second inlet channel flows directly into the drain channel, returning the engine oil to the fuel tank.

[0014] 2. The present invention is provided with a first oil unloading pipe and a second oil unloading pipe, which ensures that when the first filter cartridge and the second filter cartridge are working simultaneously, the oil flow is distributed and enters the first filter cartridge and the second filter cartridge. When one of the filter cartridges is working, the other half of the oil volume is discharged through the first oil unloading pipe or the second oil unloading pipe, ensuring that the flow rate entering the first filter cartridge or the second filter cartridge remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the working structure of the first filter cartridge and the second filter cartridge of the oil filter of the present invention;

[0016] Figure 2 This is a schematic diagram of the working structure of the first filter cartridge of the oil filter of the present invention;

[0017] Figure 3 This is a schematic diagram of the front view structure of the reversing shaft of the present invention;

[0018] Figure 4 This is a schematic diagram of the front view structure of the first filter cartridge of the present invention.

[0019] Description of main reference numerals:

[0020] 1. Filter housing; 2. Reversing shaft; 3. First oil inlet pipe; 4. First filter cartridge; 41. Filter cartridge housing; 42. First branch pipe; 43. Second branch pipe; 5. First oil outlet pipe; 6. First oil unloading pipe; 7. Second oil inlet pipe; 8. Second oil unloading pipe; 9. Second oil outlet pipe; 10. Second filter cartridge. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 work are within the scope of protection of the present invention. In addition, for the convenience of description below, the "upper", "lower", "left" and "right" quoted are the same as the upper, lower, left and right directions of the drawings themselves. The "first", "second" and so on in the following text are distinguished for the description and have no other special meanings.

[0022] The embodiment of the present application solves the problem of the oil flow rate of the filter in the prior art changing exponentially by providing an oil filter with an oil draining function. The embodiment of the present application provides an oil filter with an oil draining function. When the reversing shaft moves to the middle position, the oil inlet channel enters the reversing shaft in two ways, one of which enters the two filter cartridges for filtration and then enters the oil outlet channel and merges. The other oil inlet channel enters the dead space, so at this time all the oil enters the two filter cartridges through the first oil inlet channel. The oil drain channel does not work at this time. When the reversing shaft rotates, after the two oil inlet channels are divided into two, the first oil inlet channel is only connected to the pre-filter oil channel of one of the filter cartridges, and flows into the filter cartridge for filtration and then enters the post-filter oil channel. The second oil inlet channel directly enters the oil drain channel, and the oil flows back to the oil tank.

[0023] The technical solution in the embodiments of the present application is to solve the above problems, and the overall idea is as follows:

[0024] Example 1

[0025] This embodiment provides a specific structure of an oil filter with an oil draining function, such as Figure 1-4 As shown, it includes: a filter body, an oil pipeline and a filtering mechanism, the filter body is used to transfer the engine oil; the oil pipeline is arranged on the outside of the filter body and is used to transport the oil;

[0026] Among them, the oil circuit pipeline includes a first oil inlet assembly and a second oil inlet assembly, the first oil inlet assembly includes a first oil inlet pipe 3, a first oil outlet pipe 5 and a first oil unloading pipe 6, and the first oil inlet pipe 3, the first oil outlet pipe 5 and the first oil unloading pipe 6 are all installed on the outside of the filter body.

[0027] The second oil inlet assembly includes a second oil inlet pipe 7, a second oil unloading pipe 8 and a second oil outlet pipe 9. The second oil inlet pipe 7, the second oil unloading pipe 8 and the second oil outlet pipe 9 are all installed on the outside of the filter body and are arranged symmetrically with the first oil inlet assembly. The second oil inlet pipe 7, the second oil unloading pipe 8 and the second oil outlet pipe 9 are arranged in a clockwise direction, and the second oil inlet pipe 7 is close to the side of the first oil unloading pipe 6.

[0028] The first oil inlet pipe 3, the first oil outlet pipe 5 and the first oil unloading pipe 6 are arranged in a clockwise order. The first oil inlet pipe 3 is located at the acute angle where the first filter cartridge 4, the second filter cartridge 10 and the filter body intersect.

[0029] By adopting the above technical solutions:

[0030] A first oil unloading pipe 6 and a second oil unloading pipe 8 are provided to ensure that when the first filter cartridge 4 and the second filter cartridge 10 are working at the same time, the oil flow is distributed and enters the first filter cartridge 4 and the second filter cartridge 10. When one of the filter cartridges is working, the other half of the oil volume is discharged through the first oil unloading pipe 6 or the second oil unloading pipe 8, ensuring that the flow rate entering the first filter cartridge 4 or the second filter cartridge 10 remains unchanged.

[0031] Example 2

[0032] This embodiment provides a specific structure of an oil filter with an oil draining function, such as Figure 1-4 As shown, compared with Example 1, this embodiment further records a filter body for transporting engine oil. The filter body includes a filter housing 1. The filter housing 1 is a hollow structure. A reversing shaft 2 is provided inside the filter housing 1. The reversing shaft 2 is an irregular structure. The reversing shaft 2 has four corners, all of which are arc-shaped structures. The reversing shaft 2 is recessed inside the filter housing 1. A reversing handle is provided at the axis center of the reversing shaft 2, and the reversing handle and the reversing shaft 2 are vertical structures.

[0033] By adopting the above technical solutions:

[0034] When the reversing shaft 2 moves to the middle position, the oil inlet channel is divided into two routes and enters the interior of the filter housing 1. One route enters the first filter cartridge 4 and the second filter cartridge 10 from the first oil inlet pipe 3 and then enters the oil outlet channel after filtration and merges. The other route enters the dead space from the second oil inlet pipe 7. Therefore, at this time, all the engine oil passes through the first oil inlet channel. When the reversing shaft 2 rotates, the oil inlet channel is divided into two routes. The first oil inlet pipe 3 is only connected with the second branch pipe 43 of the first filter cartridge 4, flows into the filter cartridge housing 41, is filtered, and then enters the first branch pipe 42, enters the first oil outlet pipe 5 through the first branch pipe 42 and is discharged. The second oil inlet pipe 7 directly enters the second oil unloading pipe 8.

[0035] Example 3

[0036] This embodiment provides a specific structure of an oil filter with an oil draining function, such as Figure 1-4As shown, compared with Example 1 and Example 2, this embodiment further records a filtering mechanism, which is arranged on both sides of the filter body for filtering the engine oil. The filtering mechanism includes a first filter cartridge 4 and a second filter cartridge 10. The first filter cartridge 4 and the second filter cartridge 10 are symmetrically arranged on both sides of the filter housing 1. The first filter cartridge 4 includes a filter cartridge housing 41, a first branch pipe 42 and a second branch pipe 43. A first branch pipe 42 is provided on the lower side of the filter cartridge housing 41, and a second branch pipe 43 is provided on the lower side of the filter cartridge housing 41 away from the first branch pipe 42. The first branch pipe 42 and the second branch pipe 43 are fixedly connected to the filter cartridge housing 41. The first branch pipe 42 and the second branch pipe 43 are both hollow cylindrical structures. The first branch pipe 42 and the second branch pipe 43 are respectively an oil inlet branch pipe and an oil outlet branch pipe.

[0037] By adopting the above technical solutions:

[0038] By disposing the first filter cartridge 4 and the second filter cartridge 10 , the engine oil can be filtered under the action of the first filter cartridge 4 and the second filter cartridge 10 .

[0039] Working principle: The reversing handle is connected to the reversing shaft 2. When in use, by changing the position of the reversing handle, the reversing shaft 2 is driven to move to the middle position. The oil inlet channel is divided into two routes to enter the interior of the reversing shaft 2. One route is the first oil inlet pipe 3, which enters the first filter cartridge 4 and the second filter cartridge 10 for filtration and then enters the oil outlet channel and merges. The other route is the second oil inlet pipe 7, which enters the dead space. Therefore, at this time, all the engine oil passes through the first oil inlet channel, that is, the first oil inlet pipe 3, into the interior of the first filter cartridge 4 and the second filter cartridge 10. The oil drain channel does not work at this time, that is, the first filter cartridge 4 and the second filter cartridge 10 work together.

[0040] When the reversing shaft 2 rotates, the two oil inlet passages are divided into two, and the first oil inlet pipe 3 is only connected to the second branch pipe 43 of the first filter cartridge 4, and the oil flows into the filter cartridge housing 41 and is filtered and then enters the first branch pipe 42, and then enters the first oil outlet pipe 5 through the first branch pipe 42 for discharge. The second oil inlet pipe 7 directly enters the second oil unloading pipe 8, that is, the first filter cartridge 4 is working, and the second filter cartridge 10 is not working, and the oil flows back to the oil tank.

[0041] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An oil filter with oil drain function, characterized in that: include: The filter body is used to transfer the engine oil; An oil pipeline, which is arranged outside the filter body and is used for oil transportation; The oil pipeline comprises a first oil inlet assembly and a second oil inlet assembly, the first oil inlet assembly comprises a first oil inlet pipe (3), a first oil outlet pipe (5) and a first oil discharge pipe (6), the first oil inlet pipe (3), the first oil outlet pipe (5) and the first oil discharge pipe (6) are all installed on the outside of the filter body, the first oil inlet pipe (3), the first oil outlet pipe (5) and the first oil discharge pipe (6) are arranged in a clockwise direction, and the first oil inlet pipe (3) is located at the acute angle where the first filter cartridge (4), the second filter cartridge (10) and the filter body intersect; The second oil inlet assembly comprises a second oil inlet pipe (7), a second oil unloading pipe (8) and a second oil outlet pipe (9). The second oil inlet pipe (7), the second oil unloading pipe (8) and the second oil outlet pipe (9) are all installed on the outside of the filter body and are arranged symmetrically with the first oil inlet assembly. The second oil inlet pipe (7), the second oil unloading pipe (8) and the second oil outlet pipe (9) are arranged in a clockwise direction, and the second oil inlet pipe (7) is close to the side of the first oil unloading pipe (6). A filtering mechanism is provided at a symmetrical position of the filter body, comprising a first filter cartridge (4) and a second filter cartridge (10), wherein the first filter cartridge (4) and the second filter cartridge (10) are symmetrically arranged on both sides of the filter housing (1); The filter body comprises a filter housing (1), the filter housing (1) being a hollow structure, a reversing shaft (2) being provided inside the filter housing (1), the reversing shaft (2) being recessed inside the filter housing (1), and the reversing shaft (2) being an irregular structure. The first filter cartridge (4) comprises a filter cartridge housing (41), a first branch pipe (42) and a second branch pipe (43). When the reversing shaft (2) moves to the middle position, the oil inlet passage is divided into two paths and enters the interior of the filter housing (1). One path enters the first filter cartridge (4) and the second filter cartridge (10) from the first oil inlet pipe (3) and enters the oil outlet passage after being filtered and then merges. The other path enters the dead space from the second oil inlet pipe (7). All the engine oil passes through the first oil inlet passage. When the reversing shaft (2) rotates, the oil inlet passage is divided into two paths. The first oil inlet pipe (3) is only connected to the second branch pipe (43) of the first filter cartridge (4), flows into the filter cartridge housing (41), is filtered, and then enters the first branch pipe (42). It enters the first oil outlet pipe (5) through the first branch pipe (42) and is discharged. The second oil inlet pipe (7) directly enters the interior of the second oil unloading pipe (8).

2. The oil filter with oil draining function according to claim 1, characterized in that: The reversing shaft (2) is provided with four corners in total, and all of them are arc-shaped structures.

3. The oil filter with oil draining function according to claim 1, characterized in that: A first branch pipe (42) is provided on one side below the filter cartridge housing (41), and a second branch pipe (43) is provided on one side below the filter cartridge housing (41) away from the first branch pipe (42). The first branch pipe (42) and the second branch pipe (43) are fixedly connected to the filter cartridge housing (41).

4. The oil filter with oil draining function according to claim 3, characterized in that: The first branch pipe (42) and the second branch pipe (43) are both hollow cylindrical structures.

5. The oil filter with oil draining function according to claim 2, characterized in that: A reversing handle is provided at the axis center of the reversing shaft (2), and the reversing handle and the reversing shaft (2) are in a vertical structure.

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