Anti-deformation lubricating oil filter element

Abstract

The utility model relates to an anti-deformation lubricating oil filter element which comprises a hollow filter screen piece and a shell with two open ends, the filter screen piece is assembled in the shell and communicated with the shell, and an inner cavity supporting piece is arranged in the filter screen piece. The inner cavity supporting piece arranged in the filter screen piece is used for supporting the filter screen piece, so that in the long-term use process of the filter screen piece, the filter screen in the filter screen piece cannot deform due to pressure and impurity deposition, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to an anti-deformation lubricating oil filter element. Background Art

[0002] The filter element is the heart of the filter, as the name implies. The main function of the filter element is also the main principle of the filter, which is to purify the original ecological resources and reuse the resources, and the purification equipment required. The filter element is generally used in oil filtration, water filtration, air filtration and other filtration industries.

[0003] As the oil source of the lubrication device, the lubrication pump can provide lubricating oil or grease on a regular basis and is widely used in the field of mechanical equipment. Its basic structure includes a motor, a pump body and an oil tank. The oil inlet of the oil tank is often equipped with a lubricating oil filter to filter and remove impurities from the lubricating medium entering the oil tank.

[0004] The basic structure of today's lubricating oil filters includes a filter housing and a filter element in the filter housing. The filter element generally consists of a frame and a filter screen on the frame. The filter screen is generally connected to the frame by welding or filter screen insert injection molding. Air, moisture, and wear impurities are the main bodies to be filtered by the filter element.

[0005] For filter elements with this structure, when impurities accumulate on the filter to a certain extent during long-term use, the internal filter may be deformed due to excessive pressure, causing the filter to become detached and ineffective. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a lubricating oil filter element which can prevent the internal filter screen from being deformed so as to increase the service life.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a deformation-resistant lubricating oil filter element, comprising a hollow filter element and an outer shell with openings at both ends, the filter element being assembled inside the outer shell and connected to the outer shell, and an inner cavity support element being provided inside the filter element.

[0008] The beneficial effect of the utility model is that the inner cavity support member is arranged inside the filter element to support it, so that during the long-term use of the filter element, the filter inside the filter element will not be deformed due to pressure and impurity deposition, thereby improving the service life.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the filter element includes a connecting ring, a filter assembly and a sealing plate, the inner cavity support member is arranged inside the filter assembly, the two ends of the filter assembly are respectively connected and fixed to the connecting ring and the sealing plate, the connecting ring and the sealing plate are respectively close to the two end openings of the outer shell, the outer periphery of the connecting ring is in sealing contact with the inner wall of the outer shell, and a flow gap is formed between the sealing plate and the inner wall of the outer shell.

[0011] The above technical solution fixes the connecting ring and the sealing plate to the two ends of the filter assembly respectively, so that the filter assembly can be stably fixed inside the shell with the help of the two.

[0012] Furthermore, the outer shell is a cylindrical shell, the connecting ring and the sealing plate are both circular components, and the three are coaxially arranged.

[0013] The above technical solution can set the diameter of the sealing plate to be small, so that the lubricating oil can enter the filter screen from the connecting ring, and after being filtered, flow out from the gap between the sealing plate and the shell.

[0014] Furthermore, the filter assembly includes an outer metal mesh, an inner metal mesh and a filter mesh, the inner metal mesh is coaxially sleeved inside the outer metal mesh, and both ends of the two are respectively connected and fixed to a connecting ring and a sealing plate, the filter mesh is arranged in an annular gap between the inner metal mesh and the outer metal mesh, and the inner cavity support member is arranged in the annular gap to support the filter mesh.

[0015] The above technical solution increases the contact area between the filter and the lubricating oil and improves the filtering efficiency by setting an outer metal mesh and an inner metal mesh and using the two to constrain the filter.

[0016] Furthermore, the filter screen is folded in a wave shape along the circumferential direction, and its two ends are respectively connected and fixed to the connecting ring and the sealing plate.

[0017] The above technical solution folds the filter into a wave shape, thereby further increasing the contact area between the filter and the lubricating oil.

[0018] Furthermore, the inner cavity support is a triangular prism, and the inner cavity support is arranged at the folding part of the filter screen and is adapted thereto, and the two ends of the inner cavity support are respectively connected and fixed to the connecting ring and the sealing plate.

[0019] The above technical solution can utilize a triangular prism-shaped inner cavity support member, and insert multiple inner cavity support members into the folded part of the wavy filter screen, so as to provide a supporting skeleton when the filter screen is subjected to the internal hydraulic oil and impurity pressure, so that it will not be completely deformed.

[0020] Furthermore, an oil outlet port communicating with the inner cavity of the shell is threadedly engaged at an opening at one end of the shell close to the blocking plate.

[0021] The lubricating oil in the above technical solution can enter from the connecting ring at one end of the shell, be filtered through the internal filter, reach the gap between the shell and the filter, and finally flow out through the oil outlet port to complete the filtration, while the oil outlet port can be easily removed.

[0022] Furthermore, a pull ring is provided on one side of the sealing plate close to the oil outlet port.

[0023] When the internal filter needs to be replaced in the above technical solution, the oil outlet port is first removed, and the pull ring is held to drive the entire filter element to rotate, so that the entire device can be easily rotated out from the inside of the shell.

[0024] Furthermore, an oil outlet port communicating with the inner cavity of the shell is threadedly engaged at an opening at one end of the shell close to the blocking plate.

[0025] The above technical solution makes it more convenient to replace the filter screen later by screwing the outer shell and the connecting ring together. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the filter element in the embodiment of the utility model;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure in an embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the inner cavity support member in the embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of the top plan structure of the filter screen in the embodiment of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Filter mesh; 11. Outer metal mesh; 12. Inner metal mesh; 13. Connecting ring; 14. Sealing plate; 15. Inner cavity support; 16. Pull ring; 2. Filter mesh; 3. Outer shell; 31. Oil outlet port. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] Example

[0034] like Figure 1-4 As shown, a deformation-resistant lubricating oil filter element includes a hollow filter element 1 and a shell 3 with openings at both ends. The filter element 1 is assembled inside the shell 3 and communicated with the shell 3. An inner cavity support member 15 is provided inside the filter element 1.

[0035] The working principle is: when the device filters the lubricating oil, the external lubricating oil is filtered and penetrated through the filter mesh 1. During long-term use, the inner cavity support 15 can continue to support the filter mesh 1 to prevent it from being deformed due to the precipitation of impurities and high pressure, thereby increasing its service life.

[0036] The above technical solution supports the filter element 1 by means of the inner cavity support member 15 disposed inside the filter element 1, so that during the long-term use of the filter element 1, the filter inside the filter element 1 will not be deformed due to pressure and impurity deposition, thereby increasing the service life.

[0037] Preferably, the filter element 1 includes a connecting ring 13, a filter assembly and a sealing plate 14, an inner cavity support member 15 is arranged inside the filter assembly, and the two ends of the filter assembly are respectively connected and fixed to the connecting ring 13 and the sealing plate 14, the connecting ring 13 and the sealing plate 14 are respectively close to the two end openings of the outer shell 3, the outer periphery of the connecting ring 13 is in sealing contact with the inner wall of the outer shell 3, and a flow gap is formed between the sealing plate 14 and the inner wall of the outer shell 3.

[0038] The working principle is: by setting the connecting ring 13, the sealing plate 14 and the filter assembly, the lubricating oil can enter the connecting ring 13 and be filtered through the filter assembly. The filter assembly can limit, shape and support the internal filter, and can also filter and penetrate the lubricating oil.

[0039] The above technical solution fixes the connecting ring 13 and the sealing plate 14 to the two ends of the filter assembly respectively, and with the help of the two, the filter assembly can be stably fixed inside the housing 1.

[0040] Preferably, the outer shell 3 is a cylindrical shell, the connecting ring 13 and the sealing plate 14 are both circular components, and the three are coaxially arranged.

[0041] The working principle is: by arranging the outer shell 3, the connecting ring 13 and the sealing plate 14 coaxially, when filtering the lubricating oil, the filter can always be in perpendicular contact with the lubricating oil, thereby ensuring the filtering effect of the filter and improving the stability of the three when assembled together.

[0042] The above technical solution can improve the structural stability of the device by coaxially arranging the housing 3, the connecting ring 13 and the sealing plate 14.

[0043] Preferably, the filter assembly includes an outer metal mesh 11, an inner metal mesh 12 and a filter mesh 2. The inner metal mesh 12 is coaxially sleeved inside the outer metal mesh 11, and both ends are respectively connected and fixed to a connecting ring 13 and a sealing plate 14. The filter mesh 2 is arranged in an annular gap between the inner metal mesh 12 and the outer metal mesh 11, and an inner cavity support member 15 is arranged in the annular gap for supporting the filter mesh 2.

[0044] The working principle is as follows: by setting an outer metal mesh 11 and an inner metal mesh 12, and setting the filter 2 between the two metal meshes, the filter 2 is distributed in a tubular shape inside the housing 1, thereby increasing the contact area between the filter and the lubricating oil.

[0045] The above technical solution increases the contact area between the filter screen 2 and the lubricating oil by setting the outer metal mesh 11 and the inner metal mesh 12 and utilizing the two to constrain the filter screen 2, thereby improving the filtering efficiency.

[0046] Preferably, the filter screen 2 is folded in a wave shape along the circumferential direction, and two ends thereof are respectively connected and fixed to the connecting ring 13 and the sealing plate 14 .

[0047] The working principle is: by arranging the filter to be folded in a wave shape, the contact area between the filter 2 and the lubricating oil is further increased, so as to improve the filtering effect of the device.

[0048] The above technical solution folds the filter screen 2 into a wave shape, thereby further increasing the contact area between the filter screen 2 and the lubricating oil.

[0049] Preferably, the inner cavity support member 15 is a triangular prism, and the inner cavity support member 15 is disposed at the folded portion of the filter screen 2 and matched therewith, and the two ends of the inner cavity support member 15 are respectively connected and fixed to the connecting ring 13 and the sealing plate 14 .

[0050] The working principle is as follows: by setting the triangular prism 15 to abut against the folded part of the filter screen 2, the filter screen 2 is prevented from bending after receiving pressure, thereby increasing the service life of the device.

[0051] The above technical solution can utilize a triangular prism-shaped inner cavity support member 15 and insert multiple inner cavity support members 15 into the folded part of the wavy filter 2, so as to provide a supporting skeleton when the filter 2 is subjected to the internal hydraulic oil and impurity pressure so that it will not be completely deformed.

[0052] Preferably, an oil outlet port 31 communicating with the inner cavity of the shell 3 is threadedly engaged at an opening at one end of the shell 3 close to the blocking plate 14 .

[0053] The working principle is as follows: when the internal filter element 1 needs to be removed, the oil outlet port 31 is first rotated and removed, so that it is convenient for the staff to put their hands deep into the shell 3 to remove the filter element 1.

[0054] The lubricating oil in the above technical solution can enter from the connecting ring 13 at one end of the housing 3, and after being filtered by the internal filter 2, it reaches the gap between the housing 3 and the filter 2, and finally flows out through the oil outlet port 31 to complete the filtering, and at the same time, the oil outlet port 31 can be easily removed.

[0055] Preferably, a pull ring 16 is provided at one end of the sealing plate 14 close to the oil outlet port 31 .

[0056] The working principle is as follows: after the staff reaches into the lower end of the housing 3 , they can hold the pull ring 16 and rotate the pull ring 16 to drive the filter element 1 to rotate and remove it.

[0057] When the internal filter 2 needs to be replaced in the above technical solution, the oil outlet port 31 is first removed, and the pull ring 16 is held to drive the entire filter element to rotate, so that the entire device can be easily rotated out from the inside of the housing 3.

[0058] Preferably, a thread groove is formed on the inner wall of one end of the housing 3 close to the connecting ring 13, and a thread that screws with the thread groove is formed on the outside of the connecting ring 13.

[0059] The working principle is: by screwing the filter element into the housing 3, the convenience of removing the filter element of the device is improved.

[0060] The above technical solution enables the subsequent replacement of the filter screen to be more convenient by screwing the housing 3 and the connecting ring 13 together.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0066] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A deformation-resistant lubricating oil filter element, characterized in that: The invention comprises a hollow filter element (1) and a shell (3) with openings at both ends, wherein the filter element (1) is assembled inside the shell (3) and communicated with the shell (3), and an inner cavity support element (15) is arranged inside the filter element (1); the filter element (1) comprises a connecting ring (13), a filter element assembly and a blocking plate (14), and the inner cavity support element (15) is arranged inside the filter element assembly, and the two ends of the filter element assembly are respectively connected and fixed to the connecting ring (13) and the blocking plate (14), and the connecting ring (13) and the blocking plate (14) are respectively close to the two end openings of the shell (3), and the connecting ring (13) ) is in sealing contact with the inner wall of the outer shell (3), and a flow gap is formed between the sealing plate (14) and the inner wall of the outer shell (3); the filter assembly comprises an outer metal mesh (11), an inner metal mesh (12) and a filter (2), the inner metal mesh (12) is coaxially sleeved inside the outer metal mesh (11), and both ends of the two are respectively connected and fixed to the connecting ring (13) and the sealing plate (14), the filter (2) is arranged in the annular gap between the inner metal mesh (12) and the outer metal mesh (11), and the inner cavity support member (15) is arranged in the annular gap for supporting the filter (2).

2. The anti-deformation lubricating oil filter element according to claim 1, characterized in that: The outer shell (3) is a cylindrical shell, the connecting ring (13) and the sealing plate (14) are both circular components, and the three are coaxially arranged.

3. The anti-deformation lubricating oil filter element according to claim 1, characterized in that: The filter screen (2) is folded in a wave shape along the circumferential direction, and its two ends are respectively connected and fixed to the connecting ring (13) and the sealing plate (14).

4. The anti-deformation lubricating oil filter element according to claim 3, characterized in that: The inner cavity support member (15) is a triangular prism, and the inner cavity support member (15) is arranged at the folded part of the filter screen (2) and is adapted thereto, and the two ends of the inner cavity support member (15) are respectively connected and fixed to the connecting ring (13) and the sealing plate (14).

5. The anti-deformation lubricating oil filter element according to claim 1, characterized in that: An oil outlet port (31) connected to the inner cavity of the shell (3) is threadedly engaged at an opening at one end of the shell (3) close to the blocking plate (14).

6. The anti-deformation lubricating oil filter element according to claim 5, characterized in that: A pull ring (16) is provided at one end of the sealing plate (14) close to the oil outlet port (31).

7. The anti-deformation lubricating oil filter element according to any one of claims 1 to 6, characterized in that: A thread groove is formed on the inner wall of one end of the outer shell (3) close to the connecting ring (13), and a thread that is screwed together with the thread groove is formed on the outside of the connecting ring (13).

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