Oil absorption filter element

Abstract

The utility model discloses an oil absorption filter element, and relates to the technical field related to filtration. The filter comprises an upper end cover, a filter material, a lower end cover, a mounting block and a framework, the framework is in threaded connection between the upper end cover and the lower end cover, the framework is sleeved with the filter material and arranged between the upper end cover and the lower end cover, and the mounting block is arranged below the lower end cover; an internal thread ring is fixed on the bottom surface of the lower end cover, a raised head is fixed on the upper end surface of the mounting block, a thread groove is formed in the upper end surface of the mounting block outside the raised head, the lower end cover is screwed into the thread groove through the internal thread ring to be connected with the mounting block, a mounting ring is fixed on the lower part of the periphery of the mounting block, and mounting holes distributed in an annular array are formed in the mounting ring. Through the arrangement of the upper end cover, the lower end cover, the filter material, the framework and the mounting block, the problems that the filter material cannot be independently replaced when the oil absorption filter element is replaced, and the oil absorption filter element is inconvenient to disassemble for secondary assembly are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to filtering, and particularly relates to an oil absorption filter element. Background Art

[0002] The oil suction filter is mainly used for oil suction filtration, and its core function is to filter out solid particles and colloidal substances in the working medium, thereby effectively controlling the contamination of the working medium. This filter is widely used in hydraulic systems and fuel systems to ensure the cleanliness of hydraulic oil and the quality of fuel. In the hydraulic system, the oil suction filter is installed in the oil circuit to remove metal powder and other mechanical impurities worn by various components in the hydraulic system, so as to keep the oil circuit clean and extend the service life of the hydraulic system. The fuel filter is used to filter out impurities in the fuel, such as solid impurities or moisture such as iron oxide and dust, to reduce the probability of the fuel injector being blocked by impurities, to ensure the quality of gasoline flowing into the fuel system, to make the gasoline burned inside the engine cleaner and more fully burned, to reduce the formation of carbon deposits in the cylinder, and to improve the power output of the engine. However, the relevant oil suction filter still has the following disadvantages in actual use:

[0003] The oil suction filter element is slightly different from the conventional water filter element. It is mainly used to filter impurities in various oils. After a certain period of use, it is necessary to replace the new filter element. The replacement of the oil suction filter element is mostly a complete replacement, which is too costly. The end cover and the frame part can be reused, but the current oil suction filter element cannot achieve the effect of only replacing the filter material.

[0004] Secondly, most filter elements are packaged in one piece and connected by welding or bonding. Although this method has a stable structure, once disassembly and replacement of filter materials is required, it is difficult to disassemble and the quality of the secondary assembly cannot be guaranteed. Utility Model Content

[0005] The utility model aims to provide an oil suction filter element, which solves the problems that the filter material cannot be replaced separately when the oil suction filter element is replaced, and the oil suction filter element is inconvenient to disassemble and reassemble after being disassembled, by arranging an upper end cover, a lower end cover, a filter material, a frame, and a mounting block.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is an oil absorption filter element, comprising an upper end cover, filter material, a lower end cover, a mounting block and a frame, wherein the frame is threadedly connected between the upper end cover and the lower end cover, and the frame outer cover is provided with filter material and is placed between the upper end cover and the lower end cover, and the mounting block is arranged below the lower end cover;

[0008] An internal thread ring is fixed on the bottom surface of the lower end cover, a convex head is fixed on the upper end surface of the mounting block, and a thread groove is provided in the upper end surface of the mounting block outside the convex head. The lower end cover is screwed into the thread groove through the internal thread ring and connected to the mounting block. A mounting ring is fixed to the lower part of the outer periphery of the mounting block, and mounting holes distributed in a ring array are provided in the mounting ring.

[0009] Furthermore, an end cap is fixed through the upper end of the upper end cover, and an O-ring is sleeved on the outer periphery of the end cap. An inner ring is fixed through the center of the inner cavity of the upper end cover, and the inner ring is threaded into the upper port of the skeleton.

[0010] Furthermore, the end head is connected to the inside of the inner ring, a sealing gasket is fixed to the top of the inner cavity of the upper end cover, and a set of sealing gaskets is arranged outside the inner ring, and the bottom surface of the sealing gasket contacts the upper end of the frame and the upper end of the filter material.

[0011] Furthermore, a hollow column is fixed at the center of the inner cavity of the lower end cover, and the top end of the hollow column is closed, a cavity is provided inside the hollow column, and the bottom end of the hollow column is open and passes through the bottom surface of the lower end cover, the hollow column is threaded into the lower port of the skeleton, and a sealing gasket 2 is provided on the outer sleeve of the hollow column, and the top surface of the sealing gasket 2 contacts the bottom surface of the skeleton and the filter material.

[0012] Furthermore, an O-ring three is sleeved on the outer periphery of the protrusion, and the protrusion extends into the cavity of the hollow column; a sealing ring is fixed to the bottom of the lower end cover outside the internal threaded ring, and the bottom surface of the sealing ring contacts the upper end surface of the mounting block outside the threaded groove.

[0013] Furthermore, an O-ring 2 is sleeved on the outer periphery of the mounting block, and the O-ring 2 is located above the mounting ring.

[0014] Furthermore, the outer circumference of the skeleton is provided with through holes distributed in a ring array.

[0015] The utility model has the following beneficial effects:

[0016] The utility model solves the problem that the filter material cannot be replaced separately when the oil suction filter element is replaced by arranging an upper end cover, a lower end cover, a filter material, a frame and a mounting block; when assembling the oil suction filter element, its mounting block is connected to the corresponding component to replace the conventional lower end cover position, and then the lower end cover is threadedly connected and fixed to the mounting block, and then the frame and the lower end cover are threadedly connected and fixed, and finally the filter material is sleeved outside the frame, and finally the upper end cover is assembled and screwed into the upper end of the frame and threadedly connected to it. When filtering, the liquid medium is input from the upper end cover, filtered by the frame and the filter material, and then filtered out from the outside of the filter material to obtain a clean liquid medium; when replacement is needed, the upper end cover is disassembled, the old filter material is removed, and a new filter material is replaced, and then the upper end cover is assembled.

[0017] The utility model solves the problem that the oil suction filter element is inconvenient to disassemble and then reassemble by arranging an upper end cover, a lower end cover, a frame and a mounting block; if maintenance is required, the upper end cover, the frame and the lower end cover can all be disassembled, and threaded assembly is adopted between each other, which is different from the conventional welding connection method. The upper end cover, the lower end cover, the filter material, the frame and the mounting block of the utility model can all be disassembled to meet the needs of secondary assembly or even multiple assembly. The lower end cover is screwed into the threaded groove through the internal threaded pipe to maintain a stable connection with the mounting block, and the lower end cover is screwed into the lower port of the frame through the center column to achieve connection, and the upper end cover is screwed into the upper port of the frame through the inner ring to achieve connection. While convenient disassembly is achieved, sufficient mechanical strength can still be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0019] Figure 1 A three-dimensional diagram of an oil suction filter element;

[0020] Figure 2 It is a cross-sectional view of an oil suction filter element;

[0021] Figure 3 It is a cross-sectional view of the connection between the upper end cover and the lower end cover and the frame;

[0022] Figure 4 is a cross-sectional view of the upper end cover;

[0023] Figure 5 is a cross-sectional view of the lower end cover;

[0024] Figure 6 is a cross-sectional view of the mounting block;

[0025] Figure 7 This is a structural diagram of the skeleton.

[0026] Reference numerals:

[0027] 1. Upper end cover; 101. Terminal; 1011. O-ring 1; 102. Sealing gasket 1; 103. Inner ring; 2. Filter material; 3. Lower end cover; 301. Sealing gasket 2; 302. Internal thread ring; 303. Sealing ring; 304. Hollow column; 3041. Cavity; 4. Mounting block; 401. Mounting ring; 4011. Mounting hole; 402. O-ring 2; 403. Boss; 4031. O-ring 3; 404. Threaded groove; 5. Frame; 501. Through hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-7 As shown, the utility model is an oil absorption filter element, comprising an upper end cover 1, a filter material 2, a lower end cover 3, a mounting block 4 and a frame 5, wherein the frame 5 is threadedly connected between the upper end cover 1 and the lower end cover 3, and the frame 5 is provided with a filter material 2 on its outer sleeve and is placed between the upper end cover 1 and the lower end cover 3, and the mounting block 4 is arranged below the lower end cover 3;

[0030] The upper end cap 1, the lower end cap 3, the frame 5 and the filter material 2 constitute the main structure of the filter element. The upper end cap 1 and the lower end cap 3 are connected to the frame 5 to form the main body. The end 101 of the upper end cap 1 is used as a liquid inlet, which is input into the frame 5 and then filtered by the filter material 2 coated on the outside of the frame 5 before being discharged.

[0031] An internal thread ring 302 is fixed on the bottom surface of the lower end cover 3, a convex head 403 is fixed on the upper end surface of the mounting block 4, and a thread groove 404 is provided in the upper end surface of the mounting block 4 outside the convex head 403. The lower end cover 3 is connected to the mounting block 4 by screwing the internal thread ring 302 into the thread groove 404, and a mounting ring 401 is fixed on the lower part of the outer periphery of the mounting block 4, and mounting holes 4011 distributed in a ring array are provided in the mounting ring 401;

[0032] The setting of the mounting block 4 replaces the original lower end cover 3 structure. The mounting block 4 is installed on the corresponding component. The mounting block 4 can be used for a long time after being installed once. When connecting the lower end cover 3, the internal thread ring 302 at the bottom of the lower end cover 3 is aligned with the thread groove 404 on the mounting block 4 and screwed in to achieve installation; and the mounting block 4 is installed on the corresponding component through the mounting ring 401 and the corresponding mounting hole 4011 in conjunction with the relevant fasteners.

[0033] An end cap 101 is fixed through the upper end of the upper end cap 1, and an O-ring 1011 is sleeved on the outer periphery of the end cap 101. An inner ring 103 is fixed through the center of the inner cavity of the upper end cap 1, and the inner ring 103 is screwed into the upper end of the frame 5;

[0034] The upper end cover 1 is connected to the medium inlet through the end head 101, and cooperates with the O-ring 1011 to increase the sealing performance, and then cooperates with the inner ring 103 to be screwed into the upper port of the skeleton 5 to achieve a detachable threaded connection with the skeleton 5.

[0035] The end cap 101 is connected to the inner ring 103, and a sealing gasket 102 is fixed to the top of the inner cavity of the upper end cover 1, and the sealing gasket 102 is sleeved outside the inner ring 103, and the bottom surface of the sealing gasket 102 contacts the upper end of the frame 5 and the upper end of the filter material 2;

[0036] After the upper end cover 1 is screwed onto the upper end of the frame 5 through the inner ring 103 , the sealing gasket 102 will abut against the frame 5 and the upper end of the filter material 2 to increase the sealing performance of the gap, and the liquid medium injected into the end cap 101 passes through the inner ring 103 and enters the frame 5 .

[0037] A hollow column 304 is fixed at the center of the inner cavity of the lower end cover 3, and the top of the hollow column 304 is closed, a cavity 3041 is provided inside the hollow column 304, and the bottom end of the hollow column 304 is open and passes through the bottom surface of the lower end cover 3, the hollow column 304 is screwed into the lower port of the skeleton 5, and a sealing gasket 2 301 is provided on the outer sleeve of the hollow column 304, and the top surface of the sealing gasket 2 301 contacts the bottom surface of the skeleton 5 and the filter material 2;

[0038] When the lower end cover 3 is connected to the frame 5, the top of the hollow column 304 is continuously screwed into the lower end of the frame 5 until the bottom surface of the frame 5 is tightly pressed against the sealing gasket 2 301 to maintain the seal at the gap to avoid affecting the filtering effect during filtering;

[0039] An O-ring 3 4031 is sleeved on the outer periphery of the convex head 403, and the convex head 403 extends into the cavity 3041 of the hollow column 304; a sealing ring 303 is fixed to the bottom of the lower end cover 3 outside the internal thread ring 302, and the bottom surface of the sealing ring 303 contacts the upper end surface of the mounting block 4 outside the thread groove 404;

[0040] When assembling the lower end cover 3 and the mounting block 4, first fit the bottom end of the hollow column 304 with the boss 403 until the boss 403 enters the cavity 3041 of the hollow column 304, and cooperate with the O-ring to increase the sealing of the connection between the two; when the internal thread ring 302 at the bottom of the lower end cover 3 is screwed into the thread groove 404, until the bottom end of the lower end cover 3 contacts the sealing ring 303, the sealing of the connection between the lower end cover 3 and the mounting block 4 is increased.

[0041] The outer periphery of the mounting block 4 is sleeved with an O-ring 2 402 , and the O-ring 2 402 is located above the mounting ring 401 ; the outer mounting sleeve is sleeved with an O-ring 2 402 to increase the sealing performance with the external structure.

[0042] The outer circumference of the skeleton 5 is provided with through holes 501 distributed in a circular array; the opening of a large number of through holes 501 facilitates the passage of liquid therethrough, and the liquid is filtered through the filter material 2 and then discharged.

[0043] The specific working principle of the utility model is as follows: first, install the mounting block 4 on the corresponding component. The mounting block 4 can be used for a long time after being installed once. The mounting block 4 is installed on the corresponding component through the mounting ring 401 and the corresponding mounting hole 4011 in conjunction with the relevant fasteners. When assembling the lower end cover 3 and the mounting block 4, first fit the bottom end of the hollow column 304 with the convex head 403 until the convex head 403 enters the cavity 3041 of the hollow column 304, and rotate at the same time to align the internal threaded ring 302 at the bottom of the lower end cover 3 with the threaded groove 404 on the mounting block 4 and screw it in until the bottom end of the lower end cover 3 contacts the sealing ring 3 03 position, the installation can be achieved; then, the bottom end of the skeleton 5 is screwed into the outside of the hollow column 304 until the bottom surface of the skeleton 5 is tightly against the sealing gasket 2 301; then, the corresponding filter material 2 is sleeved on the outside of the skeleton 5, and finally, the end cover 1 and the skeleton 5 are installed, and the upper end cover 1 is screwed into the upper port of the skeleton 5 through the inner ring 103 until the sealing gasket 102 is abutted against the skeleton 5 and the upper end of the filter material 2; when filtering, the end head 101 is connected to the medium inlet, and the liquid medium injected into the end head 101 passes through the inner ring 103 into the skeleton 5, flows out through the through hole 501 in the skeleton 5, passes through the filter material 2 and is filtered and exported.

[0044] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. An oil suction filter element, comprising an upper end cover (1), a filter material (2), a lower end cover (3), a mounting block (4) and a frame (5), characterized in that: A frame (5) is threadedly connected between the upper end cover (1) and the lower end cover (3), and the frame (5) is provided with a filter material (2) on its outer cover and is placed between the upper end cover (1) and the lower end cover (3), and the mounting block (4) is arranged below the lower end cover (3); An internal thread ring (302) is fixed on the bottom surface of the lower end cover (3), a convex head (403) is fixed on the upper end surface of the mounting block (4), and a thread groove (404) is provided in the upper end surface of the mounting block (4) outside the convex head (403); the lower end cover (3) is screwed into the thread groove (404) through the internal thread ring (302) to be connected to the mounting block (4); a mounting ring (401) is fixed at the lower part of the outer periphery of the mounting block (4), and mounting holes (4011) distributed in a ring array are provided in the mounting ring (401).

2. The oil absorption filter element according to claim 1, characterized in that: An end cap (101) is fixedly passed through the upper end of the upper end cover (1), and an O-ring (1011) is sleeved on the outer periphery of the end cap (101). An inner ring (103) is fixedly passed through the center of the inner cavity of the upper end cover (1), and the inner ring (103) is screwed into the upper end port of the skeleton (5).

3. The oil absorption filter element according to claim 2, characterized in that: The end head (101) and the inner ring (103) are internally connected, and a sealing gasket (102) is fixed to the top of the inner cavity of the upper end cover (1), and the sealing gasket (102) is sleeved outside the inner ring (103), and the bottom surface of the sealing gasket (102) contacts the upper end of the frame (5) and the upper end of the filter material (2).

4. The oil absorption filter element according to claim 1, characterized in that: A hollow column (304) is fixed at the center of the inner cavity of the lower end cover (3), and the top end of the hollow column (304) is closed. A cavity (3041) is provided inside the hollow column (304), and the bottom end of the hollow column (304) is open and passes through the bottom surface of the lower end cover (3). The hollow column (304) is screwed into the lower port of the skeleton (5). A second sealing gasket (301) is provided on the outer sleeve of the hollow column (304), and the top surface of the second sealing gasket (301) contacts the bottom surface of the skeleton (5) and the filter material (2).

5. The oil absorption filter element according to claim 4, characterized in that: An O-ring 3 (4031) is sleeved on the outer periphery of the convex head (403), and the convex head (403) extends into the cavity (3041) of the hollow column (304); a sealing ring (303) is fixed to the bottom of the lower end cover (3) outside the internal threaded ring (302), and the bottom surface of the sealing ring (303) contacts the upper end surface of the mounting block (4) outside the threaded groove (404).

6. The oil absorption filter element according to claim 1, characterized in that: The outer periphery of the mounting block (4) is sleeved with an O-ring 2 (402), and the O-ring 2 (402) is located above the mounting ring (401).

7. The oil absorption filter element according to claim 1, characterized in that: The outer circumference of the skeleton (5) is provided with through holes (501) distributed in a ring array.

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