Fuel filter

Abstract

The utility model discloses a fuel filter, relates to filter technical field, its technical scheme key point is: including shell and filter element, shell includes screw cap and shell, screw cap is provided with oil inlet and oil outlet, filter element is provided in the shell, filter element and shell inner wall form oil transportation channel, the shell is detachably connected with catch, and the catch is detachably connected with the shell. An oil conveying hole is formed in the blocking piece, the oil outlet is located over the center of the filter element, and a sealing ring is arranged on the blocking piece. According to the utility model, the oil transportation hole and the oil transportation channel are arranged, so that polluted oil enters the oil transportation channel through the oil transportation hole after entering the oil inlet, and is discharged through the oil outlet after being filtered by the filter element; according to the oil filter, it is guaranteed that clean oil can smoothly flow into the oil outlet after being filtered by the filtering medium, the flow limitation problem is reduced, and meanwhile the structure is simplified while the filtering effect of the filter is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, and more particularly to a fuel filter. Background Art

[0002] The function of the fuel filter is to filter the fuel required for engine combustion, such as gasoline, diesel, etc., and prevent foreign matter brought by the fuel, such as dust, metal powder, water, organic matter, etc., from entering the engine, preventing them from causing engine wear and blocking the fuel supply system. The existing fuel filter includes a shell and a filter medium. The shell is provided with an oil outlet and an oil inlet. An oil pipeline is provided in the shell, and the two ends of the oil pipeline are respectively connected to the oil inlet and the filter medium. When in use, contaminated oil will enter through the oil inlet and be transported to the filter medium through the oil pipeline for filtration. The clean oil after filtration is extracted through the oil outlet. Since the oil pipeline in the existing fuel filter is long and often located on the same axis as the oil outlet, the actual oil outlet area of ​​the oil outlet is small, the oil outlet efficiency is low, and the medium for filtering impurities and the medium for filtering water are separately arranged, which makes the internal structure of the filter complicated, so it needs to be simplified.

[0003] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a fuel filter.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a fuel filter, comprising a shell and a filter element, the shell comprising a screw cap and a shell, the screw cap being provided with an oil inlet and an oil outlet, the filter element being arranged in the shell, an oil delivery channel being formed between the filter element and the inner wall of the shell, a baffle being detachably connected to the shell, the baffle being provided with a plurality of oil delivery holes communicating with the oil inlet and the oil delivery channel, the oil outlet being located just above the center of the filter element, the baffle being provided with a sealing ring, and when the screw cap and the shell are fixed together, the sealing ring presses against the screw cap and the baffle.

[0006] The utility model is further configured as follows: a positioning ring is provided on the outer wall of the baffle, and an annular groove is provided on the inner wall of the rotary cover. When the rotary cover and the shell are fixed, a space for accommodating the positioning ring is formed between the annular groove and the peripheral wall of the shell.

[0007] The utility model is further configured as follows: the filter element includes an end cover, a base and a ring-shaped filter medium; the end cover and the base are respectively bonded to two ends of the filter medium; and the end cover is detachably connected to the baffle.

[0008] The utility model is further configured as follows: the end cover is integrally formed with a plurality of symmetrically arranged clamping blocks that can be clamped into the oil delivery holes.

[0009] The utility model is further configured as follows: a support frame is provided between the end cover and the base, the filter medium is sleeved on the support frame, and a plurality of through holes are opened on the support frame.

[0010] The present invention is further configured as follows: the center of the base is recessed upward to form a protrusion, the support frame is sleeved on the protrusion, and the height of the protrusion is smaller than the height of the support frame.

[0011] The present invention is further configured such that: the diameter of the base is larger than the outer diameter of the filter medium.

[0012] The utility model is further configured as follows: a water level sensor is provided on the inner bottom surface of the shell.

[0013] The utility model is further configured as follows: a threaded ring is provided on the outer wall of the shell, and the rotary cover is threadedly connected to the shell.

[0014] In summary, the present invention has the following beneficial effects: by setting the oil delivery hole and the oil delivery channel, the contaminated oil will enter the oil delivery channel through the oil delivery hole after entering the oil inlet, and will be discharged through the oil outlet after being filtered by the filter element. Since the oil outlet is located directly above the center of the filter element, it helps to ensure that the clean oil can flow smoothly into the oil outlet after being filtered by the filter medium, reducing the flow restriction problem that may be caused by improper position of the oil outlet. At the same time, while ensuring the filtering effect of the filter, the structure is simplified and the maintenance cost is reduced. The presence of the sealing ring ensures that the oil is completely sealed before entering the filter element, thereby improving the filtering efficiency and preventing unfiltered oil from directly entering the engine. At the same time, the sealing ring can effectively fill the tiny gap between the screw cap and the baffle to prevent fuel leakage and ensure that the oil will not be lost during the filtering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the present utility model.

[0017] In the figure: 1. screw cap; 2. shell; 3. outer shell; 4. oil inlet; 5. oil outlet; 6. filter element; 7. oil delivery channel; 8. baffle; 9. oil delivery hole; 10. sealing ring; 11. positioning ring; 12. ring groove; 13. end cover; 14. base; 15. filter medium; 16. block; 17. support frame; 18. through hole; 19. protrusion; 20. water level sensor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] In order to better describe and illustrate the embodiments of the present application, reference may be made to one or more drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of the utility model invention of the present application, any of the currently described embodiments or preferred methods.

[0020] In the description of the present invention, it should be noted that the terms "length", "width", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] A fuel filter element 6 and a filter, such as Figure 1 As shown, it includes a shell 3 and a filter element 6. The shell 3 includes a screw cap 1 and a shell body 2. Specifically, the shell body 2 adopts a threaded ring integrally formed on the outer wall of the shell body 2. The screw cap 1 and the shell body 2 are threadedly connected. The integral molding can improve the connection strength between the threaded ring and the shell body 2 and reduce the production cost. The threaded connection can provide good sealing, prevent fuel leakage, and ensure the normal operation of the fuel system. At the same time, the threaded connection makes the installation and removal of the screw cap 1 simple and quick, which is convenient for maintenance personnel to replace and maintain the filter element 6.

[0024] Specifically, an oil inlet 4 and an oil outlet 5 are provided on the rotary cover 1, a filter element 6 is arranged in the housing 2, an oil delivery channel 7 is formed between the filter element 6 and the inner wall of the housing 2, a baffle 8 is detachably connected to the housing 2, and an array of oil delivery holes 9 are provided on the baffle 8, which are connected to the oil inlet 4 and the oil delivery channel 7. The oil outlet 5 is located just above the center of the filter element 6, and a sealing ring 10 is provided on the baffle 8. When the rotary cover 1 and the housing 2 are fixed, the sealing ring 10 presses against the rotary cover 1 and the baffle 8. Specifically, the sealing ring 10 is made of rubber material, which has good elasticity and will not collide with the rotary cover 1 and the housing 2 during the fixing process of the rotary cover 1 and the housing 2, thereby protecting the rotary cover 1 and the housing 2 from damage. The presence of the sealing ring 10 ensures that the oil is completely sealed before entering the filter element 6, thereby improving the filtration efficiency and avoiding It prevents unfiltered oil from directly entering the engine. At the same time, the sealing ring 10 can effectively fill the tiny gap between the screw cover 1 and the baffle 8 to prevent fuel leakage and ensure that the oil will not be lost during the filtering process. By setting the oil delivery hole 9 and the oil delivery channel 7, the contaminated oil will enter the oil delivery channel 7 through the oil delivery hole 9 after entering the oil inlet 4, and will be filtered by the filter element 6 and then discharged through the oil outlet 5. Since the oil outlet 5 is located directly above the center of the filter element 6, it helps to ensure that the clean oil can smoothly flow into the oil outlet 5 after being filtered by the filter medium 15, reducing the flow restriction problem that may be caused by the improper position of the oil outlet 5. At the same time, this solution saves the design of the flow channel by setting the oil delivery channel 7, while ensuring the filtering effect of the filter, simplifying the structure and reducing maintenance costs.

[0025] Furthermore, a positioning ring 11 is provided on the outer wall of the baffle 8, and an annular groove 12 is provided on the inner wall of the rotary cover 1. When the rotary cover 1 and the housing 2 are fixed, a space for accommodating the positioning ring 11 is formed between the annular groove 12 and the peripheral wall of the housing 2. The design of the positioning ring 11 and the annular groove 12 ensures the accurate position of the baffle 8 in the housing 2, prevents the baffle 8 from offsetting during the installation process, and ensures the correct path of oil flow. Through the cooperation of the positioning ring 11 and the annular groove 12, the assembly process can be simplified, the error during assembly can be reduced, and the assembly efficiency can be improved. At the same time, the positioning ring 11 is embedded in the annular groove 12, which enhances the fixation of the baffle 8 and the rotary cover 1 and improves the stability of the entire filter structure. When the positioning ring 11 is embedded in the annular groove 12, a better sealing effect can be formed, reducing the leakage of oil between the baffle 8 and the rotary cover 1.

[0026] The filter element 6 includes an end cover 13, a base 14 and an annular filter medium 15. Specifically, the end cover 13 and the base 14 are respectively bonded to the two ends of the filter medium 15. This design can provide better structural stability, ensure that the filter medium 15 maintains its shape and position during the flow of oil, thereby improving the stability of the structure. The annular filter medium 15 can provide a larger filtration area, thereby improving the filtration efficiency and effect. The end cover 13 and the baffle are detachably connected, making the replacement of the filter element 6 more convenient and quick, thereby reducing maintenance time and cost. Specifically, the end cover 13 is integrally formed with several symmetrically arranged blocks 16 that can be snapped into the oil delivery hole 9. The integrally formed block 16 on the end cover 13 can be snapped into the oil delivery hole 9, ensuring that the filter element 6 is accurately aligned with the oil delivery hole 9 on the baffle 8 during installation, thereby ensuring smooth flow of oil. At the same time, the snap-on method also makes it convenient for maintenance personnel to easily check and replace the filter element 6, thereby improving the convenience of maintenance.

[0027] A support frame 17 is provided between the end cover 13 and the base 14, and the filter medium 15 is sleeved on the support frame 17. A plurality of through holes 18 are opened on the support frame 17. The through holes 18 on the support frame 17 allow the clean oil filtered by the filter medium 15 to pass through and enter the oil outlet 5, thereby ensuring the oil outlet efficiency of the filter. The design of the support frame 17 provides stable support for the filter medium 15 to prevent the medium from deforming under the flow of oil or pressure changes. At the same time, the existence of the support frame 17 enhances the structural strength of the entire filter element 6, enabling it to withstand greater working pressure.

[0028] The center of the base 14 is recessed upward to form a protrusion 19, and the support frame 17 is mounted on the protrusion 19. The height of the protrusion 19 is less than the height of the support frame 17, and the diameter of the base 14 is greater than the outer diameter of the filter medium 15. The protrusion 19 of the base 14 provides stable support for the support frame 17, which helps to maintain the stability of the entire filter element 6 structure. The height of the protrusion 19 is less than the height of the support frame 17, which can effectively utilize space while ensuring that the filter medium 15 is properly supported on the support frame 17. The diameter of the base 14 is greater than the outer diameter of the filter medium 15, which can provide a wider support surface for the filter medium 15, reducing the risk of the filter medium 15 being offset or deformed under oil pressure. At the same time, this design may simplify the production process because the support frame 17 can be directly mounted on the protrusion 19, reducing additional assembly steps.

[0029] A water level sensor 20 is provided on the inner bottom surface of the shell 2. The water level sensor 20 can monitor the water level in the filter in real time. When the water in the filter reaches a certain height, the water level sensor 20 will sound an alarm. At this time, the operator can open the valve at the bottom of the shell 2 to allow water to flow out of the valve, thereby avoiding the water level in the filter being too high. Through automatic monitoring and drainage, the time and cost of manual inspection and maintenance are reduced.

[0030] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fuel filter comprising a housing and a filter element, characterized in that: The housing includes a rotary cover and a shell, the rotary cover is provided with an oil inlet and an oil outlet, the filter element is arranged in the shell, an oil delivery channel is formed between the filter element and the inner wall of the shell, a baffle is detachably connected to the shell, the baffle is provided with a plurality of oil delivery holes connecting the oil inlet and the oil delivery channel, the oil outlet is located directly above the center of the filter element, the baffle is provided with a sealing ring, and when the rotary cover and the shell are fixed, the sealing ring presses against the rotary cover and the baffle; A positioning ring is provided on the outer wall of the baffle, and an annular groove is provided on the inner wall of the rotary cover. When the rotary cover and the housing are fixed, a space for accommodating the positioning ring is formed between the annular groove and the peripheral wall of the housing.

2. A fuel filter according to claim 1, characterized in that: The filter element comprises an end cover, a base and a ring-shaped filter medium. The end cover and the base are respectively bonded to two ends of the filter medium. The end cover is detachably connected to the baffle.

3. A fuel filter according to claim 2, characterized in that: The end cover is integrally formed with a plurality of symmetrically arranged clamping blocks that can be clamped into the oil delivery holes.

4. A fuel filter according to claim 2, characterized in that: A support frame is provided between the end cover and the base, the filter medium is sleeved on the support frame, and a plurality of through holes are opened on the support frame.

5. A fuel filter according to claim 4, characterized in that: The center of the base is recessed upward to form a protrusion, and the support frame is sleeved on the protrusion. The height of the protrusion is smaller than the height of the support frame.

6. The fuel filter according to claim 4, characterized in that: The base has a diameter greater than an outer diameter of the filter medium.

7. The fuel filter according to claim 1, characterized in that: A water level sensor is provided on the inner bottom surface of the shell.

8. The fuel filter according to claim 1, characterized in that: A threaded ring is provided on the outer wall of the shell, and the rotary cover is threadedly connected to the shell.

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