Filter element oil filtering device

Abstract

The utility model aims to provide a filter element oil filtering device. The filter element oil filtering device is mainly composed of a filter cylinder, a supporting seat, an oil inlet pipe, an oil outlet pipe and the like, wherein at least one filter element is arranged in the filter cylinder; the supporting seat is used for fixing the filter cylinder, the oil inlet pipe is arranged below the filter cylinder and communicated with the bottom of the filter cylinder, and the oil outlet pipe is connected with the side wall of the filter cylinder. Wherein at least part of the oil outlet pipe extends into the filter cartridge, and at least part of the oil outlet pipe extends towards the top of the filter cartridge along the axial direction of the filter cartridge; in addition, the oil outlet pipe is used for enabling cleaning oil to flow in during back flushing, and the oil inlet pipe is used for enabling the cleaning oil to flow out during back flushing. Compared with the prior art, the structure can be simplified, and the interior of the filter cartridge can be cleaned without compressed air.

Description

Technical Field

[0001] The utility model belongs to a filtering device, in particular to a filter element oil filtering device. Background Art

[0002] In the industrial processing, solid impurities will be generated during the use of grinding oil. The presence of impurities will reduce the cleanliness of the oil and affect its processing performance. Existing similar technologies often use filter element air recoil technology. After a certain filtering time, when the filter element is blocked or needs to be cleaned, compressed air is used to clean the filter element in reverse. However, this technology has the following defects: it consumes a lot of compressed air, has high noise during recoil, unreasonable program control, wet slag is not easy to clean, has limited usage scenarios, and occupies a large area.

[0003] Therefore, how to provide a filter element oil filter device to simplify the structure and clean the inside of the filter cartridge without compressed air is a technical problem that the utility model urgently needs to solve. Utility Model Content

[0004] In view of the above-mentioned shortcomings or deficiencies of the prior art, the technical problem to be solved by the present invention is how to provide a filter element oil filter device to simplify the structure and clean the inside of the filter cartridge without compressed air.

[0005] In order to solve the above technical problems, the utility model provides a filter element oil filter device, which is characterized by comprising:

[0006] A filter cartridge, wherein at least one filter element is disposed inside the filter cartridge;

[0007] A support seat for fixing the filter cartridge;

[0008] An oil inlet pipe is disposed below the filter cartridge and communicated with the bottom of the filter cartridge;

[0009] an oil outlet pipe connected to the side wall of the filter cartridge;

[0010] Wherein, at least a portion of the oil outlet pipe extends into the interior of the filter cartridge, and at least a portion of the oil outlet pipe extends along the axial direction of the filter cartridge toward the top of the filter cartridge;

[0011] Furthermore, the oil outlet pipe is used for the cleaning oil to flow in during recoil, and the oil inlet pipe is used for the cleaning oil to flow out during recoil.

[0012] Further preferably, the oil outlet pipe includes at least: an oil outlet section exposed to the outside of the filter cartridge and connected to the side wall, an exchange section located inside the filter cartridge and parallel to the inside of the filter cartridge, and a bent section for connecting the oil outlet section and the exchange section.

[0013] Further preferably, a through hole communicating with the interior of the filter cartridge is provided on the exchange section.

[0014] Further preferably, it also includes: a supporting member which is sleeved on the exchange section and used to fix the exchange section, wherein the supporting member is used to support the filter element, and after being squeezed into the cavity of the filter cartridge, it circumferentially abuts against the inner wall of the cartridge, and the supporting member is provided with a recess for passing the fluid.

[0015] Further preferably, the number of the notches is more than three and they are arranged along the circumference of the supporting member;

[0016] And / or the material of the supporting member is any one of metal material, plastic material or rubber material or a combination thereof.

[0017] Further preferably, a portion of the supporting member for contacting the inner wall is sleeved with a flexible portion for elastically pressing the inner wall.

[0018] Further preferably, the through holes are in a plurality of groups and are equidistantly arranged along the axial direction of the exchange section; and the through holes in each group are in a plurality and are equidistantly arranged along the circumferential direction of the oil outlet pipe.

[0019] Further preferably, the number of through holes in each group is four; the number of groups of through holes is four.

[0020] Further preferably, the diameter of the through hole is 9.5-10.5 mm.

[0021] Further preferably, the spacing between the through holes in each group is 85-95 mm.

[0022] Further preferably, it also includes: a clamping member which is sleeved on the top of the exchange section and threadedly connected, wherein the clamping member is used to clamp the filter element after moving toward the bottom of the filter cartridge.

[0023] Further preferably, the filter cartridge comprises: a cylinder body, a sealing cover for sealing the cylinder body, and a sealing ring for sealing the cylinder body and the sealing cover.

[0024] Further preferably, there are multiple filter cartridges, and the bottom of each filter cartridge is connected to the oil inlet pipe through a branch section; the oil outlet pipe also includes: a main section that is connected to each oil outlet section.

[0025] Further preferably, there are two or more filter elements, which are stacked.

[0026] Further preferably, the oil inlet of the oil inlet pipe is provided with a pressure gauge and / or a pressure sensor communicatively connected to an external control device.

[0027] Compared with the prior art, not only the internal structure is simplified, but also the inside of the filter cartridge can be cleaned without compressed air. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0029] Figure 1 : Schematic diagram of the internal structure of the filter element oil filter device in the first embodiment of the utility model Figure 1 ;

[0030] Figure 2 : Schematic diagram of the internal structure of the filter cartridge in the first embodiment of the utility model;

[0031] Figure 3 : Schematic diagram of the structure of the filter element oil filter device in the first embodiment of the utility model Figure 2 ;

[0032] Figure 4 : A schematic diagram of the three-dimensional structure of the filter element oil filter device in the first embodiment of the utility model;

[0033] Figure 5 : Schematic diagram of the recoil principle of the filter element oil filter device in the first embodiment of the utility model;

[0034] Figure 6 : A schematic diagram of the structure of the supporting member in the first embodiment of the utility model;

[0035] Figure 7 : Schematic diagram of the assembly structure of the pressing member and the exchange section in the first embodiment of the utility model;

[0036] Figure numerals: oil inlet pipe 1, oil outlet pipe 2, filter cartridge 4, cylinder body 41, sealing cover 42, exchange section 21, through hole 210, bending section 22, oil outlet section 23, main section 24, supporting member 3, recess 31, pressing member 6. DETAILED DESCRIPTION

[0037] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0038] refer to Figures 1 to 4 As shown, the first embodiment of the utility model provides a filter element oil filter device, which is mainly composed of a filter cartridge 4 with at least one filter element arranged inside, a support seat for fixing the filter cartridge 4, an oil inlet pipe 1 arranged below the filter cartridge 4 and connected to the bottom of the filter cartridge 4, and an oil outlet pipe 2 connected to the side wall of the filter cartridge 4.

[0039] The oil outlet pipe 2 at least partially extends into the interior of the filter cartridge 4, and at least partially extends along the axial direction of the filter cartridge 4 toward the top of the filter cartridge 4;

[0040] In addition, the oil outlet pipe 2 is used for recoil, such as Figure 5 The cleaning oil, i.e., the clean oil body, flows into the direction A shown in the figure, and the oil inlet pipe 1 is used for backwashing. Figure 5 The cleaning oil flows out in the direction B shown in FIG.

[0041] Through the above structure, the interior of the filter element oil filter device does not need to be backflushed and cleaned by professional air compression equipment. Instead, the oil outlet pipe 2 is directly used as the inlet pipe for the cleaning oil. For example, clean engine oil is introduced to clean the interior of the filter cartridge 4. After passing through the filter element, the dirty oil and impurities in the filter cartridge 4 are forced out from the filter cartridge 4 from top to bottom and flow out through the oil inlet pipe 1, thereby achieving the purpose of backflushing and cleaning the filter cartridge 4, which not only saves costs but also improves the cleaning efficiency.

[0042] In addition, since the oil outlet pipe 2 is arranged on the side of the filter cartridge 4, it is higher than the oil inlet pipe 1, so that when the filter element oil filter device filters the oil, particles constituting dirty oil and impurities are not easily accumulated in the oil outlet pipe 2 to form dirty oil and impurities.

[0043] As a further preferred embodiment, the oil outlet pipe 2 at least includes: an oil outlet section 23 exposed to the outside of the filter cartridge 4 and connected to the side wall, an exchange section 21 located inside the filter cartridge 4 and parallel to the inside of the filter cartridge 4, and a bent section 22 for connecting the oil outlet section 23 and the exchange section 21. This structure can better prevent dirty oil and impurities from accumulating in the filter element instead of in the exchange section 21. In addition, when the user backwashes the filter element oil filter device, the space in the exchange section 21 is relatively small, so it has a large pressure, forcing the dirty oil and impurities to flow out from the bottom of the filter cartridge 4 and the oil inlet pipe 1.

[0044] In addition, since the bending section 22 is arranged on the side of the filter cartridge 4, it is higher than the oil outlet of the oil inlet pipe 1 and is arranged at an angle, when the filter element oil filter device is filtering oil, particles constituting dirty oil and impurities are not easy to accumulate in the oil outlet pipe 2, and dirty oil and impurities are formed, which is conducive to subsequent backwashing cleaning and avoids dirty oil and impurities from accumulating at the bottom of the bending section 22 and being difficult to clean.

[0045] Further preferably, a through hole 210 communicating with the interior of the filter cartridge 4 is provided on the exchange section 21. By providing the through hole 210 in the exchange section 21, the oil filtering effect and flow rate of the filter cartridge 4 can be not affected, and the backwashing cleaning effect can be better achieved.

[0046] Further preferably, the through holes 210 may be distributed in a mesh shape on the exchange section 21 .

[0047] As a further preferred embodiment, the through holes 210 are multiple groups, and are equidistantly arranged along the axial direction of the exchange section 21; each group has multiple through holes 210, and are equidistantly arranged along the circumference of the oil outlet pipe 2. Through the distribution of the through holes 210, each area of ​​the filter element evenly filters the filtered oil and then flows out of the exchange section 21.

[0048] Further preferably, the number of through holes 210 in each group is four; the number of groups of through holes 210 is four.

[0049] As a further preferred embodiment, the diameter of the through hole 210 is preferably 9.5-10.5 mm, and this embodiment only takes 10 mm as an example. The through hole 210 opened with this parameter can prevent or reduce impurities from entering the exchange tube through the through hole 210 and making it difficult to clean while ensuring oil filtration.

[0050] Further preferably, the spacing between the through holes 210 in each group is 85-95 mm, and this embodiment only takes the spacing of 90 mm as an example for illustration.

[0051] Further preferably, Figure 6 As shown, the above-mentioned filter element oil filter device also includes: a supporting member 3 which is sleeved on the exchange section 21 and used to fix the exchange section 21, wherein the supporting member 3 is used to support the filter element, and after being squeezed into the cavity of the filter cartridge 4, it circumferentially abuts against the inner wall of the cartridge 4, and a recess 31 for passing fluid is opened on the supporting member 3.

[0052] The support member 3 can support the filter element, and better fix the exchange section 21 in the filter cartridge 4 and keep it vertically arranged, and seal the lower part of the filter element, thereby ensuring that the filter element can fully cover the exchange section to prevent part of the oil from flowing out without being filtered by the filter element, thereby better ensuring the oil filtering effect and flow stability. In addition, due to the setting of the notch 31, when supporting the filter element, the support member 3 acts as a fluid channel through the notch 31, thereby preventing the oil filtered by the filter element from being blocked and affecting the filtering efficiency.

[0053] In addition, it should be noted that the support member 3 in this embodiment can be preferably a disk member or an arc-shaped member with an arc-shaped notch in the circumferential direction, so that each side wall can better abut the circumferential inner wall of the filter cartridge 4. In addition, the portion where the support member 3 is connected to the exchange section 21 can be connected as a whole by welding or integral molding, or can be connected by a nested manner.

[0054] Further, as a preference, the number of the notches 31 is three or more, and they are arranged along the circumference of the supporting member 3 .

[0055] Furthermore, the material of the supporting member 3 is any one of metal, plastic or rubber materials or a combination thereof. This embodiment only takes the material of the supporting member 3 as stainless steel as an example for illustration, and keeps it consistent with the material of the filter cartridge, the oil inlet pipe and the oil outlet pipe.

[0056] In addition, it is worth mentioning that the portion of the support member in this embodiment that contacts the inner wall may also be provided with a flexible portion (not shown in the figure) for elastically pressing the inner wall, so as to facilitate assembly and disassembly of the support member inside the filter cartridge and prevent the side wall of the support member from being easily damaged due to the contact with the inner wall of the filter cartridge. The flexible portion may be a rubber sleeve or a silicone sleeve, etc., which will not be specifically described or limited here.

[0057] Further preferably, in order to improve the sealing effect of the filter cartridge 4, the filter cartridge 4 may be composed of a cylinder body 41, a sealing cover 42 for sealing the cylinder body 41, and a sealing ring for sealing the cylinder body 41 and the sealing cover 42.

[0058] As a further preferred embodiment, in order to facilitate the control of the filtering flow rate of the filter element oil filter device in actual application, the filter cartridge 4 can be provided in plurality, and the bottom of each filter cartridge 4 is connected to the branch section of the oil inlet pipe 1; the oil outlet pipe 2 further includes: a main section 24 which is in communication with each oil outlet section 23. In other words, by connecting a plurality of filter cartridges 4 in parallel with the oil inlet pipe 1 and the oil outlet pipe 2 for combined use, the oil filtering amount and oil filtering efficiency can be increased.

[0059] Further preferably, there are two or more filter elements, which are stacked.

[0060] Further preferably, a pressure gauge and / or a pressure sensor connected to an external control device is installed at the oil inlet of the oil inlet pipe 1. The pressure inside the oil inlet pipe 1, that is, the pressure inside the filter cartridge 4 is indirectly monitored by the pressure gauge or the pressure sensor, or a combination of the two, so that when the pressure inside the filter cartridge 4 reaches a preset value or a set time, backwashing is performed.

[0061] In addition, as a further preferred embodiment, Figure 7 As shown, the filter element oil filter device further includes: a clamping member 6 which is sleeved on the top of the exchange section 21 and threadedly connected, wherein the clamping member 6 is used to clamp the filter element after moving toward the bottom of the filter cartridge 4 .

[0062] By making the clamping member 6 adjustable in height up and down, and cooperating with the supporting member 3, the filter element can be clamped and fixed and the pressure can be adjusted, thereby adjusting the tightness of the filter element, and further adjusting the oil filtering effect and flow rate, so that the filter element can fully perform filtering processing.

[0063] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. The utility model is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, and should be included in the scope of the claims of the utility model.

Claims

1. A filter element oil filter device, characterized in that: include: A filter cartridge, wherein at least one filter element is disposed inside the filter cartridge; A support seat for fixing the filter cartridge; An oil inlet pipe is disposed below the filter cartridge and communicated with the bottom of the filter cartridge; an oil outlet pipe connected to the side wall of the filter cartridge; Wherein, at least a portion of the oil outlet pipe extends into the interior of the filter cartridge, and at least a portion of the oil outlet pipe extends along the axial direction of the filter cartridge toward the top of the filter cartridge; Furthermore, the oil outlet pipe is used for the cleaning oil to flow in during recoil, and the oil inlet pipe is used for the cleaning oil to flow out during recoil.

2. The filter element oil filter device according to claim 1, characterized in that: The oil outlet pipe at least includes: an oil outlet section exposed to the outside of the filter cartridge and connected to the side wall, an exchange section located inside the filter cartridge and parallel to the inside of the filter cartridge, and a bent section for connecting the oil outlet section and the exchange section; wherein the exchange section is provided with a through hole connected to the inside of the filter cartridge.

3. The filter element oil filter device according to claim 2, characterized in that: Also includes: A supporting member is sleeved on the exchange section and used to fix the exchange section, wherein the supporting member is used to support the filter element, and after being squeezed into the cavity of the filter cartridge, it circumferentially abuts against the inner wall of the filter cartridge, and the supporting member is provided with a recess for passing the fluid.

4. The filter element oil filter device according to claim 3, characterized in that: The number of the notches is more than three and they are arranged along the circumference of the supporting member; And / or the material of the supporting member is any one of metal material, plastic material or rubber material or a combination thereof; And / or, a portion of the supporting member for contacting the inner wall is sleeved with a flexible portion for elastically pressing the inner wall.

5. The filter element oil filter device according to claim 2, characterized in that: The through holes are in multiple groups and are equidistantly arranged along the axial direction of the exchange section; the through holes in each group are multiple and are equidistantly arranged along the circumference of the oil outlet pipe; And / or, the number of through holes in each group is four; the number of groups of through holes is four.

6. The filter element oil filter device according to claim 2, characterized in that: The diameter of the through hole is 9.5-10.5 mm; And / or, the spacing between each through hole is 85~95mm.

7. The filter element oil filter device according to claim 2, characterized in that: Also includes: A pressing piece is sleeved on the top of the exchange section and threadedly connected, wherein the pressing piece is used to press the filter element after moving toward the bottom of the filter cartridge.

8. The filter element oil filter device according to claim 2, characterized in that: The filter cartridge comprises: a cartridge body, a sealing cover for sealing the cartridge body, and a sealing ring for sealing the cartridge body and the sealing cover.

9. The filter element oil filter device according to claim 2, characterized in that: There are multiple filter cartridges, and the bottom of each filter cartridge is connected to the branch section of the oil inlet pipe; the oil outlet pipe also includes: a main section that is connected to each oil outlet section; And / or, there are more than two filter elements, which are arranged in a stacked manner.

10. The filter element oil filter device according to any one of claims 1 to 9, characterized in that: The oil inlet of the oil inlet pipe is provided with a pressure gauge and / or a pressure sensor which is communicatively connected with an external control device.

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