Fuel filter with sensor detection function

Abstract

The utility model relates to the technical field of filters, and discloses a fuel filter with sensor detection, which comprises a main body structure and a detection structure, the main body structure comprises a shell, the upper surface of the shell is provided with a sealing ring fixing groove, a sealing ring is placed in the sealing ring fixing groove, and the top of the inner wall of the shell is provided with a cover plate; an oil outlet is formed in the center of the cover plate, a plurality of oil inlets are formed in the periphery of the oil outlet, the lower surface of the cover plate is fixedly connected with a backflow suppression valve, the outer surface of the backflow suppression valve is sleeved with a center pipe, the outer surface of the center pipe is sleeved with a filter element, and the upper surface of the filter element abuts against the lower surface of the cover plate; the lower surface of the filter element abuts against the upper surface of the bottom plate, and a through hole is formed in the upper surface of the bottom plate. According to the anti-loosening structure, the installation of the filter is more stable, the filter is prevented from loosening when being subjected to external vibration, and the stability of the filter is greatly improved.

Description

Technical Field

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

[0002] The oil filter, also known as the oil filter, is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from the engine oil to protect the engine. During engine operation, metal debris, dust, carbon deposits oxidized at high temperatures, colloidal deposits, and water continuously mix into the lubricating oil. The oil filter's function is to filter out these impurities and colloidal substances, keeping the lubricating oil clean and extending its service life.

[0003] The utility model patent application document with publication number "CN206647194U" discloses a fuel filter, which is mainly composed of a filter element, filter paper, a top end cover, a bottom end cover and a center tube. This technical solution has the advantage of good filtering effect and solves the problem of existing fuel filters. When the engine is restarted after being shut down, it can avoid the problem of starting difficulties caused by insufficient fuel supply.

[0004] The fuel filter disclosed in the above-mentioned document has the following defects: during the installation process, the fuel filter is easily loosened due to vibration because it is only installed by threads, and the filter cannot be firmly installed. Since there is no more stable installation structure inside the fuel filter, the process of stabilizing the filter is relatively troublesome.

[0005] It can be seen from this that the existing fuel filter does not have a more stable installation structure, and it is necessary to improve the existing shortcomings and provide a fuel filter with sensor detection. Utility Model Content

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

[0007] The utility model provides a fuel filter with sensor detection, comprising a main structure and a detection structure, the main structure comprising a shell, the upper surface of the shell is provided with a sealing ring fixing groove, a sealing ring is placed inside the sealing ring fixing groove, a cover plate is installed on the top of the inner wall of the shell, an oil outlet is provided in the center of the cover plate, a plurality of oil inlets are provided around the oil outlet, a backflow suppression valve is fixedly connected to the lower surface of the cover plate, the outer surface of the backflow suppression valve is sleeved with a center pipe, the outer surface of the center pipe is sleeved with a filter element, the upper surface of the filter element abuts against the lower surface of the cover plate, the lower surface of the filter element abuts against the upper surface of the bottom plate, the upper surface of the bottom plate is provided with a through hole, an overflow valve is installed on the upper surface of the through hole, the outer surface of the overflow valve is sleeved against the inner surface of the center pipe, the lower surface of the bottom plate abuts against one end of the first spring, the other end of the first spring abuts against the bottom of the inner wall of the shell, and an anti-loosening structure is installed at one end of the shell.

[0008] Furthermore, the anti-loosening structure includes a mounting seat, a movable block is installed inside the mounting seat, a push plate is installed on one side of the movable block, a slope is provided on one side of the push plate, a fixed block is installed on the other side of the push plate, the interior of the fixed block is connected to one end of the screw rod, and the other end of the screw rod passes through one side of the inner wall of the mounting seat until it fits with one end of the rotating handle.

[0009] Furthermore, the backflow suppression valve includes a first fixed shell, the upper surface of the first fixed shell abuts against the lower surface of the cover plate, a through hole is opened at the bottom of the inner wall of the first fixed shell, the upper surface of the through hole abuts against the first valve flap, the upper surface of the first valve flap abuts against one end of the second spring, and the other end of the second spring abuts against the lower surface of the cover plate.

[0010] Furthermore, the overflow valve includes a second fixed shell, the lower surface of the second fixed shell is in contact with the upper surface of the bottom plate, the upper surface of the bottom plate is in contact with the lower surface of the second valve flap, one side of the second valve flap is in contact with one side of the inner wall of the second fixed shell, the upper surface of the second valve flap is in contact with one end of the third spring, and the other end of the third spring is in contact with the top of the inner wall of the second fixed shell.

[0011] Furthermore, a detection structure is installed on one side of the shell.

[0012] Furthermore, a plurality of through holes are opened on one side of the central tube.

[0013] The utility model has the following beneficial effects:

[0014] (1) The utility model makes the installation of the filter more stable by installing an anti-loosening structure, avoids the filter from loosening when subjected to external vibration, and greatly improves the stability of the filter.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0020] Figure 4 This is a schematic diagram of the structure of the overflow valve of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the backflow suppression valve of the utility model;

[0022] Figure 6 This is a schematic diagram of the anti-loosening structure of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] In the figure: 1. Main structure; 101. Outer shell; 102. Sealing ring fixing groove; 103. Sealing ring; 104. Cover plate; 105. Oil outlet; 106. Oil inlet; 107. Center tube; 108. Filter element; 109. Bottom plate; 1010. First spring; 2. Detection structure; 3. Backflow suppression valve; 301. First fixed shell; 302. First valve disc; 303. Second spring; 4. Overflow valve; 401. Second fixed shell; 402. Second valve disc; 403. Third spring; 5. Anti-loosening structure; 501. Mounting seat; 502. Movable block; 503. Push plate; 504. Fixed block; 505. Screw; 506. Rotating handle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1-6 As shown, the utility model is a fuel filter with sensor detection, including a main structure 1 and a detection structure 2. The main structure 1 includes a shell 101. The upper surface of the shell 101 is provided with a sealing ring fixing groove 102. A sealing ring 103 is placed inside the sealing ring fixing groove 102. A cover plate 104 is installed on the top of the inner wall of the shell 101. The center of the cover plate 104 is provided with an oil outlet 105. A plurality of oil inlets 106 are provided around the oil outlet 105. The lower surface of the cover plate 104 is fixedly connected to a backflow suppression valve 3. The outer surface of the backflow suppression valve 3 is sleeved with a center pipe. 107, a filter element 108 is sleeved on the outer surface of the central tube 107, the upper surface of the filter element 108 abuts against the lower surface of the cover plate 104, the lower surface of the filter element 108 abuts against the upper surface of the bottom plate 109, a through hole is opened on the upper surface of the bottom plate 109, a relief valve 4 is installed on the upper surface of the through hole, the outer surface of the relief valve 4 is sleeved on the inner surface of the central tube 107, the lower surface of the bottom plate 109 abuts against one end of the first spring 1010, the other end of the first spring 1010 abuts against the bottom of the inner wall of the housing 101, and an anti-loosening structure 5 is installed on one end of the housing 101;

[0027] The backflow suppression valve 3 includes a first fixed housing 301. The upper surface of the first fixed housing 301 abuts the lower surface of the cover plate 104. A through hole is formed at the bottom of the inner wall of the first fixed housing 301. The upper surface of the through hole abuts a first valve flap 302. The upper surface of the first valve flap 302 abuts one end of a second spring 303. The other end of the second spring 303 abuts the lower surface of the cover plate 104.

[0028] The overflow valve 4 includes a second fixed housing 401. The lower surface of the second fixed housing 401 is in contact with the upper surface of the bottom plate 109. The upper surface of the bottom plate 109 is in contact with the lower surface of the second valve flap 402. One side of the second valve flap 402 is in contact with one side of the inner wall of the second fixed housing 401. The upper surface of the second valve flap 402 is in contact with one end of a third spring 403. The other end of the third spring 403 is in contact with the top of the inner wall of the second fixed housing 401.

[0029] During use, the fuel first enters the interior of the main structure 1 through the oil inlet 106, and then is filtered by the filter element 108. The filtered fuel flows into the interior of the central tube 107 through the through hole, and then the thrust of the fuel oil pressure pushes the first valve flap 302 to move upward. As the first valve flap 302 moves, the second spring 303 is squeezed and contracted. At this time, the fuel is output from the oil outlet 105 through the backflow suppression valve 3. When the filter element 108 is blocked, the fuel passes through the interior of the relief valve 4 instead. When the fuel flows into the relief valve 4, the thrust of the fuel oil pressure first pushes the second valve flap 402 to move upward. As the second valve flap 402 moves, the third spring 403 is squeezed and contracted. At this time, the fuel flows into the interior of the central tube 107 through the relief valve 4, which can effectively avoid the interruption of flow caused by the blockage of the filter element 108.

[0030] The anti-loosening structure 5 includes a mounting seat 501, a movable block 502 is installed inside the mounting seat 501, a push plate 503 is installed on one side of the movable block 502, one side of the push plate 503 is provided with an inclined surface, and a fixed block 504 is installed on the other side of the push plate 503. The interior of the fixed block 504 is connected to one end of the screw rod 505, and the other end of the screw rod 505 passes through one side of the inner wall of the mounting seat 501 until it is in contact with one end of the rotating handle 506;

[0031] When in use, first hold the rotating handle 506, and by turning the rotating handle 506, the screw rod 505 rotates, which drives the push plate 503 to move toward one side of the movable block 502. The inclined surface set on one side of the push plate 503 pushes the movable block 502 to move upward until the movable block 502 abuts against one side of the external oil tank. At this time, the installation is completed. The anti-loosening structure 5 installed makes the installation of the filter more stable, prevents the filter from loosening when subjected to external vibration, and greatly improves the stability of the filter.

[0032] A detection structure 2 is installed on one side of the housing 101;

[0033] A plurality of through holes are formed on one side of the central tube 107 .

[0034] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fuel filter with sensor detection, comprising a main structure (1) and a detection structure (2), characterized in that: The main structure (1) comprises a shell (101), the upper surface of the shell (101) is provided with a sealing ring fixing groove (102), a sealing ring (103) is placed inside the sealing ring fixing groove (102), a cover plate (104) is installed on the top of the inner wall of the shell (101), an oil outlet (105) is provided at the center of the cover plate (104), a plurality of oil inlets (106) are provided around the oil outlet (105), a backflow suppression valve (3) is fixedly connected to the lower surface of the cover plate (104), a central tube (107) is sleeved on the outer surface of the backflow suppression valve (3), and the outer surface of the central tube (107) is sleeved A filter element (108) is connected, the upper surface of the filter element (108) abuts against the lower surface of the cover plate (104), the lower surface of the filter element (108) abuts against the upper surface of the bottom plate (109), the upper surface of the bottom plate (109) is provided with a through hole, the upper surface of the through hole is installed with an overflow valve (4), the outer surface of the overflow valve (4) is sleeved with the inner surface of the central tube (107), the lower surface of the bottom plate (109) abuts against one end of the first spring (1010), the other end of the first spring (1010) abuts against the bottom of the inner wall of the housing (101), and one end of the housing (101) is installed with an anti-loosening structure (5).

2. The fuel filter with sensor detection according to claim 1, characterized in that: The anti-loosening structure (5) comprises a mounting seat (501), a movable block (502) is installed inside the mounting seat (501), a push plate (503) is installed on one side of the movable block (502), a bevel is provided on one side of the push plate (503), a fixed block (504) is installed on the other side of the push plate (503), the interior of the fixed block (504) is connected to one end of a screw rod (505), and the other end of the screw rod (505) passes through one side of the inner wall of the mounting seat (501) until it is in contact with one end of a rotating handle (506).

3. The fuel filter with sensor detection according to claim 1, characterized in that: The backflow suppression valve (3) comprises a first fixed shell (301), the upper surface of the first fixed shell (301) abuts against the lower surface of the cover plate (104), a through hole is provided at the bottom of the inner wall of the first fixed shell (301), the upper surface of the through hole abuts against a first valve flap (302), the upper surface of the first valve flap (302) abuts against one end of a second spring (303), and the other end of the second spring (303) abuts against the lower surface of the cover plate (104).

4. The fuel filter with sensor detection according to claim 1, characterized in that: The overflow valve (4) includes a second fixed shell (401), the lower surface of the second fixed shell (401) is in contact with the upper surface of the bottom plate (109), the upper surface of the bottom plate (109) is in contact with the lower surface of the second valve flap (402), one side of the second valve flap (402) is in contact with one side of the inner wall of the second fixed shell (401), the upper surface of the second valve flap (402) is in contact with one end of the third spring (403), and the other end of the third spring (403) is in contact with the top of the inner wall of the second fixed shell (401).

5. The fuel filter with sensor detection according to claim 2, characterized in that: A detection structure (2) is installed on one side of the housing (101).

6. The fuel filter with sensor detection according to claim 1, characterized in that: A plurality of through holes are provided on one side of the central tube (107).

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