Filter element of fuel filter

Abstract

The utility model discloses a fuel oil filter element, which relates to the technical field of fuel oil filters and comprises a filter element main body, a shell is arranged on the outer side of the filter element main body, the filter element main body is positioned in the shell, the top end of the shell is fixedly connected with a first oil conveying pipe, and the bottom end of the shell is fixedly connected with a second oil conveying pipe. Inner cavities of the first oil conveying pipe and the second oil conveying pipe are communicated with an inner cavity of the shell, and a cleaning mechanism used for cleaning the filter element body is arranged in the shell. Through the arrangement of the cleaning mechanism, when the filter paper is blocked and the fuel oil is difficult to efficiently filter, the outer wall of the filter paper can be scraped through the pressure applied by the fuel oil which is not filtered, so that impurities on the outer wall of the filter paper can be cleaned in a reciprocating manner, and the service life of the filter element main body can be further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel filters, in particular to a fuel filter element. Background Art

[0002] The fuel filter is an important component of the automobile fuel system, used to filter impurities, protect the fuel system and ensure stable operation of the engine. It is divided into diesel, gasoline and natural gas filters, and consists of a shell, filter element, etc. The filter element is a key component for filtering impurities in the fuel. It is made of microporous filter paper or metal mesh and can protect the precision parts of the fuel system from wear and tear by impurities.

[0003] During the use of the filter element of the existing fuel filter, impurities filtered out in the fuel will remain on the filter paper. After long-term use, the micropores on the filter paper will be blocked, thereby affecting the filtering effect of the filter paper on the fuel. In order to further improve the service life of the filter element main body. Utility Model Content

[0004] The utility model aims to provide a fuel filter element, which can eliminate the disadvantages of the existing device and prolong the service life of the filter element.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fuel filter element comprises a filter element body, an outer shell is arranged on the outer side of the filter element body, the filter element body is located inside the outer shell, a first oil pipeline is fixedly connected to the top end of the outer shell, a second oil pipeline is fixedly connected to the bottom end of the outer shell, the inner cavities of the first oil pipeline and the second oil pipeline are mutually connected with the inner cavity of the outer shell, and a cleaning mechanism for cleaning the filter element body is arranged inside the outer shell.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: the cleaning mechanism includes: a lifting assembly disposed inside the housing;

[0009] The lifting assembly comprises: a plurality of lifting slip rings vertically and equidistantly arranged inside the housing, wherein the plurality of lifting slip rings are all located outside the filter element body;

[0010] The shell is provided with a guide assembly.

[0011] In an optional solution: the guide assembly includes: a plurality of limit guide plates fixedly connected to the inner wall of the housing at equal intervals in the circumferential direction, and the plurality of limit guide plates are located outside the plurality of lifting slip rings;

[0012] A cleaning component is arranged on the lifting slip ring.

[0013] In an optional solution: the cleaning assembly includes: a plurality of cleaning scrapers fixedly connected to the inner wall of the lifting sliding ring at equal intervals in the circumferential direction, the plurality of cleaning scrapers are interlaced with the filter paper on the filter element body, and the plurality of cleaning scrapers are in contact with the outer wall of the filter paper on the filter element body;

[0014] A pushing component is arranged on the shell.

[0015] In an optional solution: the pushing component is a lifting pull ring arranged inside the housing, and the lifting pull ring is located below the filter element body;

[0016] The lifting pull ring is provided with a connecting component.

[0017] In an optional solution: the connecting assembly includes: a plurality of connecting rods fixedly connected to the top of the lifting pull ring at equal intervals in the circumferential direction, the plurality of connecting rods are staggered with a plurality of limit guide plates, the plurality of connecting rods are all located outside the filter element body, and the plurality of connecting rods are fixedly connected to a plurality of lifting slip rings;

[0018] A limiting component is arranged on the lifting pull ring.

[0019] In an optional solution: the limit assembly includes: a support tube arranged on the inner side of the lifting pull ring, the lifting pull ring is slidably sleeved on the outer wall of the support tube, the top end of the support tube is fixedly connected with a limit stop ring, the limit stop ring is in contact with the upper surface of the lifting pull ring, the limit stop ring is located on the inner side of a plurality of connecting rods, the bottom end of the support tube is fixedly connected with a fixing ring, the fixing ring is located below the lifting pull ring, and the fixing ring is fixedly connected to the outer shell;

[0020] A supporting assembly is arranged on the limit stop ring.

[0021] In an optional solution: the support assembly includes: a plurality of support blocks fixedly connected to the top of the limit stop ring at equal intervals in the circumferential direction, the plurality of support blocks are interlaced with the plurality of connecting rods, and the plurality of support blocks are in contact with the lower surface of the filter element body;

[0022] A reset component is arranged on the lifting pull ring.

[0023] In an optional solution: the reset component is a spring sleeved on the outer wall of the support tube, one end of the spring contacts the outer wall of the fixing ring, and the other end of the spring contacts the outer wall of the lifting pull ring.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] The utility model provides a cleaning mechanism, which can scrape the outer wall of the filter paper through the pressure exerted by the unfiltered fuel when the filter paper is clogged and it is difficult to filter the fuel efficiently, so that the impurities on the outer wall of the filter paper can be cleaned back and forth, thereby further improving the service life of the filter element body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0028] Figure 3 It is a structural schematic diagram of the filter element body.

[0029] Figure 4 It is a structural diagram of the cleaning mechanism.

[0030] Figure 5 It is a schematic diagram of the connection structure between the limit component and the support component.

[0031] Notes on the figure numbers: 1. Filter element body; 201. Cleaning scraper; 202. Lifting slip ring; 203. Connecting rod; 204. Limit stop ring; 205. Support block; 206. Spring; 207. Fixed ring; 208. Lifting pull ring; 209. Support cylinder; 2010. Limit guide plate; 3. First oil pipeline; 4. Casing; 5. Second oil pipeline. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] In one embodiment, Figure 1-Figure 5 As shown, a fuel filter element includes a filter element body 1, an outer shell 4 is arranged on the outer side of the filter element body 1, the filter element body 1 is located inside the shell 4, the top end of the shell 4 is fixedly connected to a first oil pipeline 3, the bottom end of the shell 4 is fixedly connected to a second oil pipeline 5, the inner cavities of the first oil pipeline 3 and the second oil pipeline 5 are mutually connected with the inner cavity of the shell 4, and a cleaning mechanism for cleaning the filter element body 1 is arranged inside the shell 4.

[0034] In this embodiment, when in use, the fuel is delivered to the inner cavity of the housing 4 through the second oil delivery pipe 5. At this time, the fuel enters the interior of the filter element body 1 after being filtered by the filter paper on the filter element body 1, and then the filtered fuel is delivered to the outside of the housing 4 through the filter element body 1 and the first oil delivery pipe 3. When the filter paper on the filter element body 1 is difficult to filter the fuel efficiently after long-term use, the outer wall of the filter paper can be scraped by the cleaning mechanism to clean the impurities on the outer wall of the filter paper.

[0035] like Figure 2-Figure 4 As shown, the cleaning mechanism includes: a lifting assembly disposed inside the housing 4;

[0036] The lifting assembly includes: a plurality of lifting slip rings 202 vertically and equidistantly arranged inside the housing 4, and the plurality of lifting slip rings 202 are all located outside the filter element body 1;

[0037] A guide assembly is provided on the housing 4;

[0038] The guide assembly includes: a plurality of limit guide plates 2010 fixedly connected to the inner wall of the housing 4 at equal intervals in the circumferential direction, the plurality of limit guide plates 2010 are located outside the lifting slip ring 202, the outer walls of the limit guide plates 2010 are all semicircular, and the positions where the lifting slip ring 202 and the limit guide plates 2010 meet are provided with sliding sleeve grooves that match the outer walls of the limit guide plates 2010;

[0039] A cleaning component is provided on the lifting slip ring 202;

[0040] The cleaning assembly includes: a plurality of cleaning scrapers 201 fixedly connected to the inner wall of the lifting slip ring 202 at equal intervals in the circumferential direction, the cleaning scrapers 201 and the filter paper on the filter element body 1 are interlaced with each other, and the cleaning scrapers 201 are in contact with the outer wall of the filter paper on the filter element body 1. Through the cooperation of the lifting assembly, the guide assembly and the cleaning assembly, the impurities on the outer wall of the filter paper can be scraped off by lifting, so that the filter paper can filter the fuel efficiently again;

[0041] The housing 4 is provided with a pushing component;

[0042] In one embodiment, Figure 2-Figure 4 As shown, the pushing component is a lifting pull ring 208 arranged inside the housing 4, the lifting pull ring 208 is located below the filter element body 1, and the outer wall of the lifting pull ring 208 is provided with a first sealing rubber ring in contact with the inner wall of the housing 4, and the lifting pull ring 208 is sealed and connected with the housing 4 through the first sealing rubber ring;

[0043] A connecting assembly is provided on the lifting pull ring 208;

[0044] The connecting assembly includes: a plurality of connecting rods 203 fixedly connected to the top of the lifting pull ring 208 at equal intervals in the circumferential direction, the connecting rods 203 and the limit guide plate 2010 are interlaced with each other, the connecting rods 203 are all located on the outside of the filter element body 1, and the connecting rods 203 are fixedly connected to the lifting slip ring 202. Through the cooperation between the pushing assembly and the connecting assembly, when the filter paper is difficult to filter the fuel, the lifting slip ring 202 can be driven to make the cleaning scraper 201 perform a lifting operation;

[0045] A limit position component is provided on the lifting pull ring 208;

[0046] In one embodiment, Figure 2-Figure 5 As shown, the limit assembly includes: a support tube 209 arranged on the inner side of the lifting pull ring 208, the lifting pull ring 208 is slidably sleeved on the outer wall of the support tube 209, the top of the support tube 209 is fixedly connected with a limit stop ring 204, the limit stop ring 204 is in contact with the upper surface of the lifting pull ring 208, the limit stop ring 204 is located on the inner side of a plurality of connecting rods 203, the bottom end of the support tube 209 is fixedly connected with a fixing ring 207, the fixing ring 207 is located below the lifting pull ring 208, the fixing ring 207 is fixedly connected to the outer shell 4, the inner wall of the lifting pull ring 208 is provided with a second sealing rubber ring in contact with the outer wall of the support tube 209, the limit assembly is used to limit the lifting and lowering of the lifting pull ring 208, and the second sealing rubber ring is used to seal the lifting pull ring 208 and the support tube 209;

[0047] A support assembly is provided on the limit stop ring 204;

[0048] In one embodiment, Figure 2-Figure 5 As shown, the support assembly includes: a plurality of support blocks 205 fixedly connected to the top of the limit retaining ring 204 at equal intervals in the circumferential direction, the plurality of support blocks 205 and the plurality of connecting rods 203 are interlaced with each other, the support blocks 205 are all in contact with the lower surface of the filter element body 1, and the support blocks 205 are used to support the filter element body 1;

[0049] A reset assembly is provided on the lifting pull ring 208;

[0050] In one embodiment, Figure 2-Figure 4 As shown, the reset component is a spring 206 sleeved on the outer wall of the support tube 209, one end of the spring 206 contacts the outer wall of the fixed ring 207, and the other end of the spring 206 contacts the outer wall of the lifting pull ring 208. The reset component is used to push the lifting pull ring 208 to slide and reset.

[0051] The above embodiment discloses a fuel filter element, wherein when in use, the fuel is delivered to the inner cavity of the housing 4 through the second oil delivery pipe 5, and the fuel passes through the fixing ring 207, the support cylinder 209, and the limit stop ring 204 to contact the outer wall of the filter element body 1, and then the fuel is filtered by the filter paper on the filter element body 1 and enters the interior of the filter element body 1, and then the filtered fuel is delivered to the outside of the housing 4 through the filter element body 1 and the first oil delivery pipe 3;

[0052] When the filter paper on the filter element body 1 is difficult to filter the fuel efficiently after being used for a long time, the unfiltered fuel accumulates on the outside of the filter element body 1. At the same time, the fuel is continuously transported to the inside of the shell 4 through the second oil delivery pipe 5, so that the fuel can exert pressure on the upper surface of the lifting pull ring 208. At this time, the lifting pull ring 208 slides down along the outer wall of the support tube 209 under the pressure of the fuel. At the same time, the lifting pull ring 208 is contracted by the displacement extrusion spring 206. At this time, the multiple lifting slip rings 202 are driven by the lifting pull rings 208 through the multiple connecting rods 203 and slide along the outer walls of the multiple limit guide plates 2010 through the sliding sleeve grooves. At the same time, the multiple cleaning scrapers 201 are driven by the multiple lifting slip rings 202 to scrape the outer wall of the filter paper, so that the impurities on the outer wall of the filter paper can be cleaned;

[0053] When the impurities on the filter paper are scraped off, the filter paper can now filter the unfiltered fuel. At the same time, the filtering of the fuel by the filter paper can reduce the pressure exerted by the fuel on the upper surface of the lifting pull ring 208. At this time, the spring 206 pushes the lifting pull ring 208 to reset by rebounding. At the same time, the multiple cleaning scrapers 201 can clean the outer wall of the filter paper again by resetting, thereby further improving the service life of the filter element main body 1.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A fuel filter element, comprising a filter element body (1), an outer shell (4) being arranged on the outer side of the filter element body (1), the filter element body (1) being located inside the outer shell (4), a first oil pipeline (3) being fixedly connected to the top end of the outer shell (4), a second oil pipeline (5) being fixedly connected to the bottom end of the outer shell (4), the inner cavities of the first oil pipeline (3) and the second oil pipeline (5) being mutually connected to the inner cavity of the outer shell (4), characterized in that: A cleaning mechanism for cleaning the filter element body (1) is provided inside the housing (4); The cleaning mechanism comprises a lifting component arranged inside the outer shell (4); the lifting component comprises: a plurality of lifting slip rings (202) arranged vertically and equidistantly inside the outer shell (4), the plurality of lifting slip rings (202) being located outside the filter element body (1); and a guide component is arranged on the outer shell (4).

2. A fuel filter element according to claim 1, characterized in that: The guide assembly comprises: a plurality of position limiting guide plates (2010) fixedly connected to the inner wall of the outer shell (4) at equal intervals in the circumferential direction, the position limiting guide plates (2010) being located outside the plurality of lifting slip rings (202); The lifting slip ring (202) is provided with a cleaning component.

3. A fuel filter element according to claim 2, characterized in that: The cleaning component comprises: a plurality of cleaning scrapers (201) fixedly connected to the inner wall of the lifting slip ring (202) at equal intervals in the circumferential direction, the cleaning scrapers (201) being interlaced with the filter paper on the filter element body (1), and the cleaning scrapers (201) are in contact with the outer wall of the filter paper on the filter element body (1); The housing (4) is provided with a pushing component.

4. A fuel filter element according to claim 3, characterized in that: The pushing component is a lifting pull ring (208) arranged inside the housing (4), and the lifting pull ring (208) is located below the filter element body (1); The lifting pull ring (208) is provided with a connecting component.

5. A fuel filter element according to claim 4, characterized in that: The connection assembly comprises: a plurality of connection rods (203) fixedly connected to the top of the lifting pull ring (208) at equal intervals in the circumferential direction, the connection rods (203) and the limit guide plate (2010) being interlaced with each other, the connection rods (203) being located outside the filter element body (1), and the connection rods (203) being fixedly connected to the lifting slip ring (202); The lifting pull ring (208) is provided with a limit position component.

6. A fuel filter element according to claim 5, characterized in that: The position limiting assembly comprises: a support tube (209) arranged on the inner side of a lifting pull ring (208), the lifting pull ring (208) being slidably sleeved on the outer wall of the support tube (209), the top end of the support tube (209) being fixedly connected to a position limiting retaining ring (204), the position limiting retaining ring (204) being in contact with the upper surface of the lifting pull ring (208), the position limiting retaining ring (204) being located on the inner side of a plurality of connecting rods (203), the bottom end of the support tube (209) being fixedly connected to a fixing ring (207), the fixing ring (207) being located below the lifting pull ring (208), and the fixing ring (207) being fixedly connected to the outer shell (4); A support assembly is provided on the limit stop ring (204).

7. A fuel filter element according to claim 6, characterized in that: The support assembly comprises: a plurality of support blocks (205) fixedly connected to the top of the limit stop ring (204) at equal intervals in the circumferential direction, the support blocks (205) and the connecting rods (203) being interlaced with each other, and the support blocks (205) are all in contact with the lower surface of the filter element body (1); The lifting pull ring (208) is provided with a reset component.

8. A fuel filter element according to claim 7, characterized in that: The reset component is a spring (206) sleeved on the outer wall of the support tube (209), one end of the spring (206) contacts the outer wall of the fixing ring (207), and the other end of the spring (206) contacts the outer wall of the lifting pull ring (208).

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