Fuel filter with high filtering performance

Abstract

The utility model relates to the technical field of fuel filters, in particular to a high-filtering-performance fuel filter which comprises a fuel filter body with an oil outlet pipe, a cover body is connected with the fuel filter body in a sliding mode through a positioning device, two extending-in blocks are arranged on the lower surface of the cover body, connecting blocks are arranged in the two mounting cavities, and the two extending-in blocks are connected with the fuel filter body in a sliding mode. An operating rod is arranged on the surface of one side of the connecting block, a driving block is arranged on the surface of the other side of the connecting block, a clamping groove is formed in the surface of the side, close to the driving block, of the extending block, and the operating rod is sleeved with a spring. According to the utility model, through the positioning device, the extending block slides into the extending groove for positioning, so that the cover body is convenient to install and fix; and the extending block, the extending groove, the mounting cavity, the connecting block, the operating rod and the driving block are not adhered to fuel oil, so that the operation blockage is avoided, and the tightness of the connection between the cover body and the shell is ensured.

Description

Technical Field

[0001] This utility model relates to the field of fuel filter technology, and in particular to a fuel filter with high filtration performance. Background Technology

[0002] The function of a fuel filter is to remove harmful particles and moisture from the engine's fuel system, protecting the fuel pump, injectors, cylinder liners, piston rings, etc., so as to ensure their normal operation. It also reduces wear, prevents blockage, removes solid impurities such as iron oxide and dust contained in the fuel, prevents fuel system blockage, reduces mechanical wear, ensures stable engine operation, and improves reliability.

[0003] For example, the authorization announcement number "CN222526425U" is a high-performance fuel filter. The cover is fixed to the housing by a locking rod on a gear passing through the pin hole on the cover and the round hole on the housing, and the locking rod extends to the outside of the cover. This makes it easy to separate the cover and the housing, and facilitates the disassembly, replacement and cleaning of the filter element assembly.

[0004] The above-mentioned and existing technologies have the following defects: the pin hole on the fuel filter cover and the round hole on the housing are not easy to align, making it difficult to extend the locking rod to the outside of the cover; the gear, groove and locking rod are prone to fuel sticking, which leads to obstructed operation and affects the tightness of the connection between the cover and the housing. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-performance fuel filter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-performance fuel filter is designed, comprising a fuel filter body with an outlet pipe, a cover with an inlet pipe at the upper end of the fuel filter body, the cover being slidably connected to the fuel filter body via a positioning device, a support block annularly provided on the surface of the fuel filter body, two extension blocks on the lower surface of the cover, and two extension grooves on the upper surface of the support block, the two extension blocks corresponding to and matching the two extension grooves one-to-one, two mounting cavities provided inside the support block, and a connecting block provided inside each of the two mounting cavities, an operating rod on one side surface of the connecting block, and a driving block on the other side surface of the connecting block, the operating rod penetrating through the inner wall of one side of the mounting cavity and extending to the outside, a snap-fit ​​groove on the side surface of the extension block near the driving block, the driving block extending into the snap-fit ​​groove, a slope facing inward from top to bottom on the lower part of the extension block, and a spring fitted outside the operating rod, one end of the spring being connected to the inner wall of one side of the mounting cavity, and the other end of the spring being connected to the side surface of the connecting block.

[0008] Preferably, one end of the operating lever is provided with a pull ring.

[0009] Preferably, the positioning device includes two positioning blocks and two positioning grooves. The two positioning blocks are respectively disposed on the inner walls of both sides of the cover. Positioning grooves are formed on both sides of the fuel filter body. The positioning blocks are slidably connected to the positioning grooves.

[0010] Preferably, a first rubber gasket is provided between the fuel filter body and the cover.

[0011] Preferably, the upper surface of the fuel filter body is provided with two protrusions, and the lower surface of the cover is provided with two grooves. The two protrusions correspond one-to-one with the two grooves, and the protrusions extend into the grooves.

[0012] Preferably, the end of the drive block near the insertion slot is arc-shaped.

[0013] The present invention provides a high-performance fuel filter with the following advantages: the cover and the fuel filter body do not require a through hole; instead, they are positioned by a positioning device through which the extension block slides into the extension groove, facilitating the installation and fixation of the cover; the extension block, extension groove, mounting cavity, connecting block, operating rod, and drive block will not stick to fuel, avoiding obstruction of operation and ensuring a tight connection between the cover and the housing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an enlarged view of position A in this utility model;

[0016] Figure 3 This is an enlarged view of position B of this utility model.

[0017] In the diagram: 1. Fuel filter body; 2. Oil outlet pipe; 3. Oil inlet pipe; 4. Cover; 5. Support block; 6. Extension block; 7. Extension groove; 8. Mounting cavity; 9. Connecting block; 10. Operating lever; 11. Drive block; 12. Snap-fit ​​groove; 13. Inclined surface; 14. Spring; 15. Pull ring; 16. Positioning block; 17. Positioning groove; 18. First rubber pad; 19. Protrusion; 20. Groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-3A high-performance fuel filter includes a fuel filter body 1 with an outlet pipe 2. The upper end of the fuel filter body 1 is provided with a cover 4 having an inlet pipe 3. The cover 4 is slidably connected to the fuel filter body 1 via a positioning device. A support block 5 is annularly arranged on the surface of the fuel filter body 1. Two insertion blocks 6 are provided on the lower surface of the cover 4. Two insertion grooves 7 are provided on the upper surface of the support block 5. The two insertion blocks 6 and the two insertion grooves 7 correspond one-to-one and match. Two mounting cavities 8 are provided inside the support block 5. Both mounting cavities 8 contain... A connecting block 9 is provided. An operating rod 10 is provided on one side surface of the connecting block 9, and a driving block 11 is provided on the other side surface of the connecting block 9. The operating rod 10 passes through the inner wall of one side of the mounting cavity 8 and extends to the outside. A snap-fit ​​groove 12 is provided on the side surface of the extension block 6 near the driving block 11. The driving block 11 extends into the snap-fit ​​groove 12. The lower part of the extension block 6 is provided with an inclined surface 13 facing inward from top to bottom. A spring 14 is fitted on the outside of the operating rod 10. One end of the spring 14 is connected to the inner wall of one side of the mounting cavity 8, and the other end of the spring 14 is connected to the surface of one side of the connecting block 9.

[0020] One end of the operating lever 10 is provided with a pull ring 15. The pull ring 15 makes it easy to pull the operating lever 10.

[0021] The positioning device includes two positioning blocks 16 and two positioning grooves 17. The two positioning blocks 16 are respectively set on the inner walls of both sides of the cover 4. The positioning grooves 17 are opened on both sides of the fuel filter body 1. The positioning blocks 16 and the positioning grooves 17 are slidably connected.

[0022] A first rubber gasket 18 is provided between the fuel filter body 1 and the cover 4. The first rubber gasket 18 serves to seal the filter.

[0023] The upper surface of the fuel filter body 1 has two protrusions 19, and the lower surface of the cover 4 has two grooves 20. The two protrusions 19 correspond one-to-one with the two grooves 20, and the protrusions 19 extend into the grooves 20. This increases the tightness of the connection between the fuel filter body 1 and the cover 4.

[0024] The end of the drive block 11 near the insertion groove 7 is arc-shaped. This facilitates the sliding of the drive block 11 on the inclined surface 13.

[0025] Working principle: During installation, the positioning block 16 is aligned with the positioning groove 17 using the positioning device. Then, the cover 4 is pressed down, causing the insertion block 6 to enter the insertion groove 7. Under the elastic action of the spring 14, the drive block 11 is engaged in the locking groove 12. During disassembly, the pull ring 15 is pulled, which in turn pulls the operating rod 10, causing the drive block 11 to disengage from the locking groove 12. Then, the cover 4 is lifted and removed. In summary, the cover 4 and the fuel filter body 1 do not require a through hole. The positioning device allows the insertion block 6 to slide into the insertion groove 7 for positioning, facilitating the installation and fixation of the cover 4. The insertion block 6, insertion groove 7, mounting cavity 8, connecting block 9, operating rod 10, and drive block 11 will not come into contact with fuel, preventing obstruction of operation and ensuring a tight connection between the cover and the housing.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high filtration performance fuel filter comprising a fuel filter body (1) with a fuel outlet pipe (2), characterized in that, The fuel filter body (1) has a cover (4) with an oil inlet pipe (3) at its upper end. The cover (4) is slidably connected to the fuel filter body (1) through a positioning device. The surface of the fuel filter body (1) is provided with a support block (5) in a ring. The lower surface of the cover (4) is provided with two insertion blocks (6). The upper surface of the support block (5) is provided with two insertion grooves (7). The two insertion blocks (6) correspond one-to-one with the two insertion grooves (7). The support block (5) is provided with two mounting cavities (8). Each of the two mounting cavities (8) is provided with a connecting block (9). One side surface of the connecting block (9) is provided with There is an operating lever (10), and a driving block (11) is provided on the other side surface of the connecting block (9). The operating lever (10) penetrates the inner wall of one side of the mounting cavity (8) and extends to the outside. The side surface of the extension block (6) near the driving block (11) is provided with a snap-fit ​​groove (12). The driving block (11) extends into the snap-fit ​​groove (12). The lower part of the extension block (6) is provided with an inclined surface (13) facing inward from top to bottom. A spring (14) is fitted on the outside of the operating lever (10). One end of the spring (14) is connected to the inner wall of one side of the mounting cavity (8), and the other end of the spring (14) is connected to the side surface of the connecting block (9).

2. A high filtration performance fuel filter according to claim 1, wherein One end of the operating lever (10) is provided with a pull ring (15).

3. A high filtration performance fuel filter according to claim 1, wherein The positioning device includes two positioning blocks (16) and two positioning grooves (17). The two positioning blocks (16) are respectively set on the inner walls of the two sides of the cover (4). The positioning grooves (17) are opened on both sides of the fuel filter body (1). The positioning blocks (16) and the positioning grooves (17) are slidably connected.

4. A high filtration performance fuel filter according to claim 1, wherein A first rubber gasket (18) is provided between the fuel filter body (1) and the cover (4).

5. A high filtration performance fuel filter according to claim 1, wherein The upper surface of the fuel filter body (1) is provided with two protrusions (19), and the lower surface of the cover (4) is provided with two grooves (20). The two protrusions (19) correspond one-to-one with the two grooves (20), and the protrusions (19) extend into the grooves (20).

6. A high filtration performance fuel filter according to claim 1, wherein The end of the drive block (11) near the insertion groove (7) is arc-shaped.

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