End cover and filter

Abstract

The utility model relates to an end cover and a filter. The device comprises a main body, the filter screen seat is arranged on the main body and comprises an annular seat body with an axial through hole and a plurality of notches which are formed in the radial direction and distributed in the side wall of the annular seat body in the circumferential direction; and the filter screen is mounted and covers each notch. The filter comprises a shell; the filter element structure is arranged in the shell and comprises a filter element main body and a central pipe arranged in the filter element main body; the filter seat is connected with the upper end of the shell, the filter seat comprises a liquid outlet pipe, and the end cover is arranged between the filter element structure and the filter seat. The oil supply device can effectively solve the problem that oil cannot be supplied to gas collection of the filter, is simple in structure and reduces cost.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an end cover and a filter. Background Art

[0002] The main function of the filter is to filter impurities in the fuel, ensure the cleanliness of the fuel, and make the entire fuel supply system run stably and reliably. The fuel used in the vehicle may be mixed with some impurities during storage or transportation, and the impurities affect the performance of the supply system.

[0003] The main components of the filter are the filter seat and the filter element. The filter element is mainly composed of filter paper, end caps, outer shell and cover plate. The existing end caps are mainly responsible for connecting the filter paper and the filter seat and ensuring the seal without internal leakage. Some filters will open holes at the upper end cover interface to vent air due to internal air collection leading to oil supply problems, but this will inevitably lose some of the filtering performance of the filter. Some filter products will also use additional exhaust components or exhaust structures to solve the air collection problem, but this will increase the types of parts and make the product structure more complicated. Summary of the invention

[0004] To this end, the utility model provides an end cover and a filter, which can effectively solve the problem that the filter air collector cannot supply oil, and has a simple structure and reduces costs.

[0005] In order to solve the above technical problems, the utility model provides an end cover, comprising:

[0006] main body;

[0007] A filter seat is arranged on the main body, and comprises an annular seat body with an axial through hole, and a plurality of notches radially opened and circumferentially distributed on the side wall of the annular seat body;

[0008] A filter screen is installed and covers each of the slots.

[0009] In an embodiment of the present utility model, the main body and the filter seat are integrally formed, and the main body extends radially outwardly and integrally at one axial end of the filter seat.

[0010] In one embodiment of the present invention, the plurality of notches are evenly distributed circumferentially on the side wall of the annular seat body.

[0011] In one embodiment of the utility model, the filter seat includes a first annular portion and a second annular portion arranged coaxially, and connecting columns distributed along the circumferential direction and connected between the first annular portion and the second annular portion, the notch is formed between two adjacent connecting columns, a pressure column is arranged on one side of each connecting column, and the filter is installed between each connecting column and the corresponding pressure column.

[0012] In one embodiment of the present invention, the first annular portion and the second annular portion are respectively in the shape of circular rings.

[0013] In an embodiment of the present invention, the thickness of the first annular portion is smaller than the thickness of the second annular portion.

[0014] In an embodiment of the present utility model, a curved surface flush with the radial outer side of the first annular portion is provided on the radial outer side of the connecting column, and the curved surface is not higher than the radial outer side of the second annular portion.

[0015] In an embodiment of the present invention, the pressure column includes a cylindrical surface, which protrudes from the radial inner side surface of the first annular portion and is not higher than the radial inner side surface of the second annular portion.

[0016] In one implementation of the present invention, the filter screen is a steel wire filter screen.

[0017] The utility model also provides a filter, comprising the end cover, and further comprising:

[0018] shell;

[0019] A filter element structure is disposed in the housing, comprising a filter element body and a central tube disposed in the filter element body;

[0020] A filter seat connected to the upper end of the housing, the filter seat comprising a liquid outlet pipe, and the end cover is arranged between the filter core structure and the filter seat;

[0021] Wherein, the axial through hole is connected to the central tube and the liquid outlet pipe respectively; a gas collecting area connected to the slot is formed between the filter seat and the main body, and the gas in the gas collecting area can pass through the filter screen and be discharged from the liquid outlet pipe.

[0022] The above technical solution of the utility model has the following advantages compared with the prior art:

[0023] The end cover and filter described in the utility model can effectively discharge the gas in the gas collection area when the filter is working by setting the filter seat and the filter, thereby solving the problem of insufficient oil supply caused by gas collection in the filter. By integrating the filter into the end cover, the structure is simplified, the types and number of parts are reduced, and the overall structure is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0025] Figure 1It is a schematic diagram of the axial side structure of the end cover of the utility model.

[0026] Figure 2 It is a schematic cross-sectional structural diagram of the end cover of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the filter of the utility model.

[0028] Description of the Figures in the Specification:

[0029] 1. Subject;

[0030] 2. filter seat; 21. annular seat body; 22. notch; 23. filter; 24. first annular portion; 25. second annular portion; 26. connecting column; 261. arc surface; 27. pressure column; 271. cylindrical surface;

[0031] 3. Shell;

[0032] 4. Filter element body;

[0033] 5. Center tube;

[0034] 6. Filter seat; 61. Liquid outlet pipe;

[0035] 7. Gas gathering area. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0037] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0038] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0040] Reference Figure 1 , Figure 2 As shown, an end cover of the utility model comprises:

[0041] Subject 1;

[0042] The filter seat 2 is arranged on the main body 1, and the filter seat 2 comprises an annular seat body 21 having an axial through hole, and a plurality of notches 22 radially opened and circumferentially distributed on the side wall of the annular seat body 21;

[0043] The filter screen 23 is installed on and covers each of the slots 22 .

[0044] In one embodiment, the main body 1 and the filter seat 2 are integrally formed, and the main body 1 extends radially outwardly and integrally to one axial end of the filter seat 2. This enhances the overall mechanical strength and structural stability of the end cap, reduces the looseness or misalignment problems that may occur during the assembly process, and simplifies the manufacturing process and reduces the production cost through integral molding.

[0045] In one embodiment, a plurality of the notches 22 are evenly distributed circumferentially on the side wall of the annular seat body 21. The evenly distributed notches 22 design facilitates the uniform discharge of gas, avoids excessively high or low local pressure, and thus ensures the stability and consistency of gas flow inside the filter.

[0046] In one embodiment, the filter seat 2 includes a first annular portion 24 and a second annular portion 25 which are coaxially arranged, and connecting columns 26 which are distributed circumferentially and connected between the first annular portion 24 and the second annular portion 25. The notch 22 is formed between two adjacent connecting columns 26. A pressure column 27 is arranged on one side of each connecting column 26. The filter 23 is installed between each connecting column 26 and the corresponding pressure column 27. The filter 23 is installed circumferentially, and the pressure column 27 and the connecting column 26 can be connected by welding.

[0047] The above structural design provides a more stable support, effectively preventing the filter screen 23 from being deformed or shifted during use. The design of the connecting column 26 increases the stability of the overall structure, and the arrangement of the pressure column 27 and the connecting column 26 provides a more uniform support for the filter screen 23.

[0048] In one embodiment, the first annular portion 24 and the second annular portion 25 are respectively in annular shapes.

[0049] The thickness of the first annular portion 24 is smaller than the thickness of the second annular portion 25 .

[0050] The connecting column 26 is provided with an arc surface 261 on the radial outer side thereof, which is flush with the radial outer side surface of the first annular portion 24 . The arc surface 261 is not higher than the radial outer side surface of the second annular portion 25 .

[0051] The pressure column 27 includes a cylindrical surface 271 . The cylindrical surface 271 protrudes from the radial inner side surface of the first annular portion 24 and is not higher than the radial inner side surface of the second annular portion 25 .

[0052] The connecting column 26 and the pressure column 27 improve the durability and stability of the overall structure. The design of the arc surface 261 and the cylindrical surface 271 can also reduce fluid resistance and improve the exhaust efficiency of the filter.

[0053] In one embodiment, the filter 23 is a steel filter 23 (such as a 304 stainless steel mesh filter 23). By controlling the mesh size of the filter 23, large particles of impurities can be accurately intercepted, the cleanliness of the fuel can be ensured, and the reliability and service life of the fuel supply system can be improved.

[0054] Reference Figure 3 As shown, the end cover is applied to a filter, and the filter comprises:

[0055] Shell 3;

[0056] The filter element structure is arranged in the housing 3, and comprises a filter element body 4 (paper core) and a central tube 5 arranged in the filter element body 4;

[0057] A filter seat 6 connected to the upper end of the housing 3, the filter seat 6 includes a liquid outlet pipe 61, and the end cover is arranged between the filter element structure and the filter seat 6;

[0058] Among them, the axial through hole is connected to the central tube 5 and the liquid outlet pipe 61 respectively; a gas collecting area 7 connected to the slot 22 is formed between the filter seat 6 and the main body 1, and the gas in the gas collecting area 7 can pass through the filter screen 23 and be discharged from the liquid outlet pipe 61.

[0059] When the filter is working, the fuel enters from the oil inlet, is filtered through the filter element body 4, and is discharged from the center tube 5 and the liquid outlet pipe 61 in turn. At the same time, some gas will enter and gradually form gas collection in the gas collecting area 7 in the upper part of the filter. The gas can pass through the gap of the wire filter 23 and be discharged from the liquid outlet pipe 61. At the same time, the wire filter 23 can intercept large particles of impurities that are larger than the gap, thereby achieving the exhaust function and blocking large particles from entering the oil circuit as much as possible.

[0060] By integrating the main body with the filter screen 23, the structure of the upper end cover of the filter is formed, the number of filter parts is reduced, the product reliability is improved, and the cost is reduced.

[0061] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand 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, which should be included in the scope of the claims of the utility model.

Claims

1. An end cap, characterized in that: include: Subject (1); A filter seat (2) is arranged on the main body (1), the filter seat (2) comprising an annular seat body (21) having an axial through hole, and a plurality of notches (22) radially opened and circumferentially distributed on the side wall of the annular seat body (21); A filter screen (23) is installed on and covers each of the slots (22).

2. An end cap according to claim 1, characterized in that: The main body (1) and the filter seat (2) are integrally formed, and the main body (1) extends radially outwards as a whole at one axial end of the filter seat (2).

3. An end cap according to claim 1, characterized in that: The plurality of notches (22) are evenly distributed circumferentially on the side wall of the annular seat body (21).

4. An end cap according to claim 1, characterized in that: The filter seat (2) comprises a first annular portion (24) and a second annular portion (25) which are coaxially arranged, and connecting columns (26) which are distributed along the circumferential direction and connected between the first annular portion (24) and the second annular portion (25), the notch (22) being formed between two adjacent connecting columns (26), a pressure column (27) being arranged on one side of each connecting column (26), and the filter (23) being installed between each connecting column (26) and the corresponding pressure column (27).

5. An end cap according to claim 4, characterized in that: The first annular portion (24) and the second annular portion (25) are respectively in the shape of a circular ring.

6. An end cap according to claim 5, characterized in that: The thickness of the first annular portion (24) is smaller than the thickness of the second annular portion (25).

7. An end cap according to claim 6, characterized in that: The radial outer side of the connecting column (26) is provided with an arc surface (261) flush with the radial outer side surface of the first annular portion (24), and the arc surface (261) is not higher than the radial outer side surface of the second annular portion (25).

8. An end cap according to claim 7, characterized in that: The pressure column (27) comprises a cylindrical surface (271), wherein the cylindrical surface (271) protrudes from the radial inner side surface of the first annular portion (24) and is not higher than the radial inner side surface of the second annular portion (25).

9. An end cap according to claim 1, characterized in that: The filter screen (23) is a steel wire filter screen.

10. A filter, characterized in that: The end cap according to any one of claims 1 to 9 further comprises: Shell (3); A filter element structure, arranged in the housing (3), comprising a filter element body (4) and a central tube (5) arranged in the filter element body (4); A filter seat (6) connected to the upper end of the housing (3), the filter seat (6) comprising a liquid outlet pipe (61), and the end cover is arranged between the filter element structure and the filter seat (6); The axial through hole is respectively connected to the central tube (5) and the liquid outlet pipe (61); a gas collecting area (7) connected to the notch (22) is formed between the filter seat (6) and the main body (1); gas in the gas collecting area (7) can pass through the filter screen (23) and be discharged from the liquid outlet pipe (61).

Images