Fuel filter capable of reducing replacement frequency

Abstract

The utility model relates to the technical field of fuel filters, in particular to a fuel filter capable of reducing replacement frequency, which comprises an outer shell and a top cover, an oil outlet pipe is arranged on the surface of the outer shell, an oil inlet pipe is arranged on the upper surface of the top cover, two mounting cavities are arranged in the outer shell, and connecting plates in sliding connection with the two mounting cavities are arranged in the two mounting cavities. Clamping blocks are arranged on the surfaces of the opposite sides of the two connecting plates, reset springs are arranged between the connecting plates and the inner wall of one side of the mounting cavity, driving rods are arranged on the surfaces of the opposite sides of the two connecting plates, and a driving device is arranged in the driving cavity. Through the driving device, the top cover can be taken out only by taking down the extrusion conical head, the operation is convenient, and the top cover is very easy to take down. Through the driving device, the extrusion conical head abuts against the driving rod, fastening is conducted through the first bolt, under the vibration condition, the extrusion conical head cannot rotate, and it is ensured that the extrusion conical head abuts against the driving rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel filter technical field especially relates to a kind of fuel filter of reducing replacement frequency. BACKGROUND

[0002] Fuel filter is to filter out harmful particles and moisture in the engine fuel gas system, to protect oil pump nozzle, cylinder liner, piston ring and other normal operation, reduce wear and tear, avoid blockage, remove the solid impurities such as iron oxide and dust contained in fuel, to prevent fuel system blockage, reduce mechanical wear and tear, ensure stable operation of engine, improve reliability, fuel will enter the inside of filter when using.

[0003] For example, authorized announcement number "CN222501926U" is named a kind of fuel filter of reducing replacement frequency, filter adopts split structure, when needing to replace, can open shell, replace internal paper core alone, to reduce the replacement frequency of filter whole, reduce the cost of whole fuel system maintenance, simultaneously, when installing, can be sealed by mutual extrusion, and keep the real-time limit of shell and top cap when extruding each other.

[0004] The above and prior art have the following defects: when the cover body of the fuel filter is opened, the operating lever needs to be operated while lifting the top cover, which is inconvenient to operate and difficult to remove the cover body; by extruding the taper head to press the connecting rod, the taper head is easy to rotate under vibration, so that the connecting rod cannot be tightly pressed, and the cover body is not fixed firmly. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a fuel filter with reduced replacement frequency.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of fuel filter of reducing replacement frequency, including the shell body with oil outlet pipe on surface and top cover with oil inlet pipe on upper surface, the lower surface of top cover is equipped with the center tube being communicated with oil inlet pipe, the surface of center tube is fixed with filter paper, the sealing block is equipped between shell body and top cover, the lower surface of the second convex ring of shell body lower part and top cover surface is respectively equipped with the first convex ring and the second convex ring, the lower surface of the second convex ring is symmetrically equipped with two slide columns with multiple clamping holes, the surface of the first convex ring is symmetrically equipped with two slide holes being slidably connected with slide column, the inside of shell body is equipped with two installation cavities, the inside of two installation cavities is equipped with the connecting plate being slidably connected with it, the surface of the side of two connecting plates is equipped with clamping block, clamping block penetrates shell body and the first convex ring and extends into clamping hole, reset spring is equipped between the connecting plate and the side inner wall of installation cavity, the side surface of the side of two connecting plates is equipped with drive rod, the lower surface of shell body is equipped with drive cavity, the inside of drive cavity is equipped with driving device, drive rod extends into drive cavity and is abutted with driving device.

[0008] Preferably, the driving device includes an extrusion cone head, the lower surface of the extrusion cone head is provided with a fixed plate, the lower end of the drive cavity is provided with a hidden groove, the fixed plate is arranged in the hidden groove, an elastic rubber pad is arranged between the fixed plate and the hidden groove, the fixed plate is fixed with the hidden groove by a plurality of first bolts, and a handle is arranged on the lower surface of the fixed plate.

[0009] Preferably, the cross-sectional shape of the slide column is rectangular, and the cross-sectional shape of the slide hole is rectangular matching the slide column.

[0010] Preferably, a limiting block is arranged on one side surface of the slide column, and a limiting groove matching the limiting block is arranged on one side inner wall of the slide hole.

[0011] Preferably, two positioning rods are arranged between the inner walls of the two sides of the installation cavity, and the two positioning rods are slidably connected with the connecting plate.

[0012] Preferably, two semicircular blocks are arranged on the surface of the shell body, and mounting ears are arranged at the two ends of the two semicircular blocks, the adjacent two mounting ears are fixedly connected by a second bolt, a support block is arranged at one end of the mounting ear, and a plurality of connecting holes are arranged on the surface of the support block.

[0013] The fuel filter disclosed by the utility model has the beneficial effects that: when the top cover of the fuel filter is opened, one component needs to be operated on one side, and the top cover needs to be pulled on the other side, through the driving device, the top cover can be taken out only by taking down the extrusion cone head, the operation is convenient, and the top cover can be easily taken down. Through the driving device, the extrusion cone head is abutted against the drive rod through the extrusion cone head, and the extrusion cone head is fastened by the first bolt, so that the extrusion cone head does not rotate in the case of vibration, the extrusion cone head is abutted against the drive rod, and the top cover is fixed firmly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic view of the utility model;

[0015] Figure 2 It is the A position enlarged view of the utility model;

[0016] Figure 3 It is the B position enlarged view of the utility model;

[0017] Figure 4 It is the structure section view of the utility model;

[0018] Figure 5 It is the C position enlarged view of the utility model.

[0019] In the figure: shell 1, top cover 2, oil inlet pipe 3, oil outlet pipe 4, center cylinder 5, filter paper 6, sealing block 7, first convex ring 8, second convex ring 9, clamping hole 10, sliding column 11, sliding hole 12, installation cavity 13, connecting plate 14, clamping block 15, reset spring 16, drive rod 17, drive cavity 18, extrusion cone head 19, fixed plate 20, hidden groove 21, elastic rubber pad 22, first bolt 23, handle 24, limiting block 25, limiting groove 26, positioning rod 27, semicircle block 28, mounting ear 29, second bolt 30, supporting block 31, connecting hole 32. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Refer to Figures 1-5The utility model relates to a fuel filter with reduced replacement frequency, which comprises an outer shell 1 with an oil outlet pipe 4 on the surface and a top cover 2 with an oil inlet pipe 3 on the upper surface, a central cylinder 5 with a filter paper 6 fixed on the surface is arranged on the lower surface of the top cover 2 and communicates with the oil inlet pipe 3, a sealing block 7 is arranged between the outer shell 1 and the top cover 2, a first convex ring 8 and a second convex ring 9 are respectively arranged on the lower part of the outer shell 1 and the surface of the top cover 2 in one-to-one correspondence, two slide columns 11 with a plurality of clamping holes 10 are symmetrically arranged on the lower surface of the second convex ring 9, two slide holes 12 in sliding connection with the slide columns 11 are symmetrically arranged on the surface of the first convex ring 8, two mounting cavities 13 are arranged in the inner part of the outer shell 1, a connecting plate 14 in sliding connection with the mounting cavities 13 is arranged in the inner part of each mounting cavity 13, a clamping block 15 is arranged on the surface of the side opposite to the connecting plate 14, the clamping block 15 penetrates through the outer shell 1 and the first convex ring 8 and extends into the clamping hole 10, a reset spring 16 is arranged between the connecting plate 14 and the inner wall of one side of the mounting cavity 13, a driving rod 17 is arranged on the surface of the side opposite to the connecting plate 14, a driving cavity 18 is arranged on the lower surface of the outer shell 1, a driving device is arranged in the inner part of the driving cavity 18, and the driving rod 17 extends into the driving cavity 18 and abuts against the driving device.

[0022] The driving device comprises an extrusion cone head 19, a fixed plate 20 is arranged on the lower surface of the extrusion cone head 19, a hidden groove 21 is arranged at the lower end of the driving cavity 18, the fixed plate 20 is arranged in the inner part of the hidden groove 21, an elastic rubber pad 22 is arranged between the fixed plate 20 and the hidden groove 21, the fixed plate 20 is fixed to the hidden groove 21 through a plurality of first bolts 23, and a handle 24 is arranged on the lower surface of the fixed plate 20. The handle 24 is arranged to facilitate pulling the fixed plate 20.

[0023] The cross section of the slide column 11 is rectangular, and the cross section of the slide hole 12 is rectangular and matched with the slide column 11. The rectangular shape prevents the slide column 11 from rotating and facilitates the butt joint of the clamping block 15 and the slide hole 12.

[0024] A limiting block 25 is arranged on one side surface of the slide column 11, and a limiting groove 26 matched with the limiting block 25 is arranged on one side inner wall of the slide hole 12. The limiting block 25 slides in the limiting groove 26, so that the slide column 11 moves more stably.

[0025] Two positioning rods 27 are arranged between the inner walls of the two sides of the mounting cavity 13, and the two positioning rods 27 are in sliding connection with the connecting plate 14. The two positioning rods 27 are arranged to make the connecting plate 14 move more stably.

[0026] The outer shell 1 is provided with two semicircular blocks 28, both ends of the two semicircular blocks 28 are provided with mounting ears 29, adjacent two mounting ears 29 are fixedly connected through a second bolt 30, one end of the mounting ear 29 is provided with a supporting block 31, and the surface of the supporting block 31 is provided with a plurality of connecting holes 32. By loosening the second bolt 30, then moving the two semicircular blocks 28, when moving to the appropriate position, the two semicircular blocks 28 are fixed through the second bolt 30, so that the mounting position of the supporting block 31 is more flexible.

[0027] Working principle: when disassembly is needed, the first bolt 23 is unscrewed, then the handle 24 is pulled, the extrusion cone head 19 is separated from the driving rod 17, under the action of the stretching force of the return spring 16, the connecting plate 14 moves inward, then the clamping block 15 is pulled inward, the clamping block 15 is separated from the clamping hole 10, at this time, the top cover 2 can be pulled, the slide column 11 is separated from the slide hole 12, then the center cylinder 5 can be cleaned and the filter paper 6 can be replaced; as described above, when the top cover 2 of the fuel filter is opened, one component needs to be operated while pulling the top cover 2, only the extrusion cone head 19 needs to be removed, the top cover 2 can be taken out, the operation is convenient, and the top cover 2 is easily removed. When installation, the top cover 2 is pressed, then the fixed plate 20 is pushed, the fixed plate 20 is fixed to the hidden groove 21 through the first bolt 23, at this time, the clamping block 15 is clamped to the clamping hole 10, the installation is completed: the extrusion cone head 19 is pressed against the driving rod 17, the first bolt 23 is fastened, under the condition of vibration, the extrusion cone head 19 will not rotate, the extrusion cone head 19 is ensured to be tightly pressed against the driving rod 17, so that the top cover 2 is fixed firmly.

[0028] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A fuel filter with reduced frequency of replacement, comprising an outer casing (1) provided with an oil outlet pipe (4) on its surface and a top cover (2) provided with an oil inlet pipe (3) on its upper surface, characterized in that, The lower surface of the top cover (2) is provided with a center cylinder (5) communicated with the oil inlet pipe (3), the surface of the center cylinder (5) is fixedly provided with a filter paper (6), the outer shell (1) and the top cover (2) are provided with sealing blocks (7) between them, the lower part of the outer shell (1) and the surface of the top cover (2) are respectively and correspondingly provided with first convex rings (8) and second convex rings (9), the lower surface of the second convex ring (9) is symmetrically provided with two slide columns (11) both with a plurality of clamping holes (10), the surface of the first convex ring (8) is symmetrically provided with two slide holes (12) slidably connected with the slide columns (11), the inner part of the outer shell (1) is provided with two installation cavities (13), the inner part of the two installation cavities (13) is respectively provided with a connecting plate (14) slidably connected therewith, the surface of the side, away from each other, of the two connecting plates (14) is provided with a clamping block (15), the clamping block (15) penetrates through the outer shell (1) and the first convex ring (8) and extends into the clamping hole (10), the connecting plate (14) and the inner wall of the side of the installation cavity (13) are provided with a reset spring (16) between them, the surface of the side, facing each other, of the two connecting plates (14) is provided with a driving rod (17), the lower surface of the outer shell (1) is provided with a driving cavity (18), the inner part of the driving cavity (18) is provided with a driving device, the driving rod (17) extends into the driving cavity (18) and abuts against the driving device.

2. A reduced change frequency fuel filter according to claim 1 wherein, The driving device comprises an extrusion cone head (19), the lower surface of the extrusion cone head (19) is provided with a fixed plate (20), the lower end of the driving cavity (18) is provided with a hidden groove (21), the fixed plate (20) is arranged in the hidden groove (21), the fixed plate (20) and the hidden groove (21) are provided with an elastic rubber pad (22) between them, the fixed plate (20) is fixed with the hidden groove (21) through a plurality of first bolts (23), the lower surface of the fixed plate (20) is provided with a handle (24).

3. A reduced change-out frequency fuel filter in accordance with Claim 1 wherein, The cross section shape of the slide column (11) is rectangular, and the cross section shape of the slide hole (12) is rectangular matched with the slide column (11).

4. A reduced change frequency fuel filter according to claim 3 wherein, The side surface of the slide column (11) is provided with a limiting block (25), and the side inner wall of the slide hole (12) is provided with a limiting groove (26) matched with the limiting block (25).

5. A reduced change-out frequency fuel filter in accordance with claim 1 wherein, The inner walls between the two sides of the installation cavity (13) are provided with two positioning rods (27), and the two positioning rods (27) are slidably connected with the connecting plate (14).

6. A reduced change-out frequency fuel filter in accordance with claim 1, wherein, The surface of the outer shell (1) is provided with two semicircle blocks (28), the two ends of the two semicircle blocks (28) are provided with mounting ears (29), the adjacent two mounting ears (29) are fixedly connected through a second bolt (30), the mounting ear (29) is provided with a supporting block (31) at one end, and the surface of the supporting block (31) is provided with a plurality of connecting holes (32).

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