A fuel water separator and a method for replacing its filter element

Abstract

The present application discloses a fuel-water separator and a method for replacing a filter element thereof, comprising a shell, a cover, an oil inlet, an oil outlet, an upper ring cover, a lower ring cover and a filter paper cartridge, and also comprising a connecting unit, which is fixedly mounted on the upper ring cover; a magnetic conductive ring, which is arranged on the lower end surface of the cover; wherein the upper end of the connecting unit contacts the magnetic conductive ring, and the cover is mounted on the shell through the connecting unit; the connecting unit comprises an electromagnet ring, which is fixedly sleeved on the outside of the upper ring cover; a plurality of damping telescopic rods, which are respectively fixedly connected to the electromagnet ring; a plurality of first springs, the lower ends of which are fixedly connected to the electromagnet ring and are respectively sleeved on each damping telescopic rod; wherein the top ends of the plurality of damping telescopic rods contact the magnetic conductive ring, and the upper end surfaces of the first springs also contact the magnetic conductive ring. Through the arrangement of the magnetic conductive ring, the electromagnet ring, the damping telescopic rod and the first spring, the cover can be directly popped out from the shell, thereby facilitating the replacement of the filter paper cartridge inside the shell.

Description

Technical Field

[0001] The present invention relates to a separator. Background Art

[0002] The automotive oil-water separator is a type of fuel filter. Its main function is to remove water from the fuel. The filter element assembly of the fuel filter is usually placed as a whole in the outer shell, and then the outer shell is screwed to the base through threaded fitting. At this time, the upper end of the filter element assembly is inserted into the central channel of the base. When assembling in this way, when disassembling and replacing the filter element assembly, the filter element assembly must be removed from the outer shell, which is difficult and requires more manpower and time, resulting in high labor costs and time costs.

[0003] Existing filters offer easy-to-replace filter cartridges, such as the easily removable fuel filter patented in CN112459938B. The housing is connected to a base, and a filter cartridge assembly is disposed within the housing. A mounting portion extends from the upper end of the filter cartridge assembly, which is provided with a plurality of clips. These clips, together with a first protruding ring and a first annular groove of a central vertical tube, form a snap-fit structure that secures the filter cartridge assembly to the base. The filter cartridge assembly of the present invention is secured to the base via this snap-fit structure, making it easier to align the filter cartridge assembly with the housing and reducing the difficulty of assembling the base, housing, and filter cartridge assembly.

[0004] This embodiment has the effect of low difficulty in disassembly and replacement of the filter element assembly by first unscrewing the outer shell and then pulling the filter element assembly off the base. However, it has the following defects:

[0005] When disassembly and assembly is required, the outer shell needs to be unscrewed first, and the outer shell and the base are connected by threads. The threaded connection is prone to cracking, resulting in an unstable and loose connection between the outer shell and the base. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides a fuel-water separator, comprising a housing, a cover, an oil inlet, an oil outlet, an upper ring cover, a lower ring cover, and a filter paper cartridge, and further comprising:

[0008] a connecting unit, which is fixedly mounted on the upper ring cover;

[0009] A magnetic conductive ring is provided on the lower end surface of the cover body;

[0010] The upper end of the connecting unit is in contact with the magnetic ring, and the cover is mounted on the shell through the connecting unit.

[0011] The connection unit includes:

[0012] The electromagnet ring has a fixed sleeve arranged outside the upper ring cover;

[0013] A plurality of damping telescopic rods, each of which is fixedly connected to the electromagnet ring;

[0014] A plurality of first springs, the lower ends of which are fixedly connected to the electromagnet ring and are respectively sleeved on each damping telescopic rod;

[0015] The top ends of the plurality of damping telescopic rods are in contact with the magnetic conductive ring, and the upper end surfaces of the first springs are also in contact with the magnetic conductive ring.

[0016] Also includes:

[0017] The filter screen is arranged on the electromagnet ring.

[0018] Also includes:

[0019] a pair of fixing portions, which are respectively arranged on the outer wall of the cover body;

[0020] A pair of limiting columns, which are respectively fixedly connected to the lower ends of the fixing parts;

[0021] a pair of ear blocks, which are respectively arranged on the outer wall of the shell;

[0022] A pair of positioning holes, respectively provided on each ear block;

[0023] Among them, a pair of ear blocks correspond to the positions of each fixing block, and each limiting column can be inserted into the positioning hole.

[0024] Also includes:

[0025] A water collection cylinder, which is connected to the lower end of the shell through threads;

[0026] A drain outlet is provided at the bottom end of the water collection cylinder;

[0027] Drain connector, which is installed on the drain outlet through threads.

[0028] Also includes:

[0029] a sealing portion, which is provided at the upper end of the drainage joint;

[0030] a sealing ring fixedly connected to the sealing portion;

[0031] a drainage channel extending downward from the sealing portion and out of the drainage joint;

[0032] The regulating portion is arranged at the lower end of the drainage joint.

[0033] The water cylinder is set to transparent.

[0034] Also includes:

[0035] The filter cartridge is fixedly installed in the water storage cartridge;

[0036] A partition, which is fixedly installed in the filter cartridge;

[0037] The supporting assembly is fixedly mounted on the partition.

[0038] Also includes:

[0039] a second spring, the lower end of which is fixedly connected to the partition;

[0040] a movable plate fixedly connected to the upper end of the second spring;

[0041] A plurality of push rods are evenly distributed on the upper end surface of the partition.

[0042] The present invention also discloses a fuel water separator and a method for replacing a filter element thereof, comprising the following steps:

[0043] S1. Remove the cover: Close the electromagnet ring, so that the magnetic ring loses its magnetic force, and the spring resets and pushes the magnetic ring to drive the cover to separate from the shell;

[0044] S2. Replace the filter element: remove the upper ring cover and take out the filter element for replacement;

[0045] S3. Sealing: Install the filter element, upper ring cover and cover body onto the housing in sequence, and start the electromagnet ring to give the magnetic ring adsorption force to ensure the stability of the cover body and the housing.

[0046] The beneficial effects of the present invention are as follows:

[0047] By arranging the magnetic ring, the electromagnet ring, the damping telescopic rod and the first spring, the cover body can be directly popped out from the shell without moving the cover body, so that the filter paper cylinder inside the shell can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a main cross-sectional view of a fuel-water separator and a method for replacing a filter element thereof in an embodiment of the present application;

[0049] Figure 2 Based Figure 1 A magnified schematic diagram of the local structure at center A;

[0050] Figure 3 This is a top view of the electromagnet ring in the embodiment of this application;

[0051] Figure 4 This is a cross-sectional view of the drainage joint in an embodiment of the present application.

[0052] Reference numerals

[0053] 1-shell, 2-cover, 3-oil inlet, 4-oil outlet, 5-upper ring cover, 6-lower ring cover, 7-filter paper cylinder, 8-connecting unit, 9-magnetic ring, 10-electromagnet ring, 11-damping telescopic rod, 12-first spring, 13-filter screen, 14-fixing part, 15-limiting column, 16-ear block, 17-positioning hole, 18-water collection cylinder, 19-drain outlet, 20-drainage joint, 21-sealing part, 22-sealing ring, 23-drainage channel, 24-adjusting part, 25-filter cylinder, 26-partition, 27-support assembly, 28-second spring, 29-movable plate, 30-top rod. DETAILED DESCRIPTION

[0054] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0055] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0056] The fuel-water separator and the method for replacing the filter element thereof provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0057] Example 1:

[0058] like Figures 1 to 3 As shown, an embodiment of the present application provides a fuel-water separator, including a shell 1, a cover body 2, an oil inlet hole 3, an oil outlet hole 4, an upper ring cover 5, a lower ring cover 6 and a filter paper tube 7, and also includes: a connecting unit 8, which is fixedly mounted on the upper ring cover 5; a magnetic ring 9, which is arranged on the lower end surface of the cover body 2; wherein, the upper end of the connecting unit 8 is in contact with the magnetic ring 9, and the cover body 2 is mounted on the shell 1 through the connecting unit 8.

[0059] Furthermore, the connecting unit 8 includes an electromagnet ring 10, which is fixedly mounted on the outside of the upper ring cover 5; a number of damping telescopic rods 11, which are respectively fixedly connected to the electromagnet ring 10; a number of first springs 12, the lower ends of which are fixedly connected to the electromagnet ring 10 and are respectively mounted on each damping telescopic rod 11; wherein, the top ends of the several damping telescopic rods 11 are in contact with the magnetic ring 9, and the upper end faces of the first springs 12 are also in contact with the magnetic ring 9.

[0060] Furthermore, a filter screen 13 is included, which is arranged on the electromagnet ring 10 .

[0061] Furthermore, it also includes a pair of fixing parts 14, which are respectively arranged on the outer wall of the cover body 2; a pair of limiting columns 15, which are respectively fixedly connected to the lower ends of each fixing part 14; a pair of ear blocks 16, which are respectively arranged on the outer wall of the shell 1; a pair of positioning holes 17, which are respectively arranged in each ear block 16; wherein, a pair of ear blocks 16 correspond to the position of each fixing block, and each limiting column 15 can be inserted into the positioning hole 17.

[0062] Also included is a fuel water separator and a method for replacing a filter element thereof, comprising the following steps:

[0063] S1. Remove the cover: Close the electromagnet ring 10, so that the magnetic ring 9 loses its magnetic force. The spring resets and pushes the magnetic ring 9 to drive the cover 2 to separate from the housing 1.

[0064] S2. Replace the filter element: remove the upper ring cover 5 and take out the filter element for replacement;

[0065] S3. Sealing: Install the filter element, upper ring cover 5 and cover body 2 onto the housing 1 in sequence, and start the electromagnet ring 10 to give adsorption force to the magnetic ring 9 to ensure the stability of the installation of the cover body 2 and the housing 1.

[0066] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the filter paper cartridge 7 needs to be replaced, the fuel-water separator is first removed from the bottom of the vehicle body as a whole, and the power supply of the electromagnet ring 10 is disconnected (the electromagnet ring 10 uses an iron block, copper wire and battery combination to generate magnetic force, the copper wire is wound inside the iron block, and its two ends are connected to the positive and negative motors of the battery, and the battery is connected to the copper wire by inserting and removing the insulating sheet, thereby controlling the presence or absence of the magnetic force of the electromagnet ring 10). The magnetic ring 9 loses its magnetic force. At the same time, the damping telescopic rods 11 on the electromagnet ring 10 extend, the first spring 12 recovers, and the first spring 12 generates an elastic force. The force pushes the magnetic ring 9 upward, and the magnetic ring 9 drives the cover body 2 to move upward together. At the same time, the positioning column disengages from the positioning hole 17 to ensure that the entire cover body 2 is separated from the shell 1. Without twisting the cover body 2, the cover body 2 can be directly popped out from the shell 1. After the cover body 2 is removed, first remove the upper ring cover 5, and then take out the filter paper tube 7 from the inside of the shell 1. The filter paper tube 7 is supported by the lower ring cover 6 and the upper ring cover 5. Put the new filter paper tube 7 into the inside of the shell 1, and install the lower end of the filter paper tube 7 on the lower ring cover 6. Then install the upper ring cover 5 to the upper end of the filter paper tube 7, and finally fix the cover body 2 to the shell 1. First, align the fixed portion 14 with the ear block 16, and insert the limit posts 15 on both sides of the cover body 2 into the positioning holes 17 respectively. At this time, the cover body 2 has been installed on the upper end of the shell 1. At the same time, turn on the power of the electromagnet ring 10, and the electromagnet ring 10 generates a magnetic force, causing the magnetic ring 9 to move toward the electromagnet ring 10. During the downward movement of the magnetic ring 9, the damping telescopic rod 11 and the first spring 12 are shortened, and the lower end surface of the fixed portion 14 of the cover body 2 is in contact with the upper end surface of the ear block 16. The setting of the limit posts 15 can prevent the cover body 2 from sliding. In addition, the setting of the electromagnet ring 10 ensures that there is a magnetic attraction between the cover body 2 and the upper ring cover 5, ensuring the stability of the cover body 2 installation and preventing the cover body 2 from falling off during the use of the vehicle. A filter screen 13 is provided on the electromagnet ring 10 to filter impurities in the fuel for the first time, and the filter hole is also for allowing the fuel to circulate.

[0067] Example 2:

[0068] like Figure 1 、 Figure 4 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes: a water collection cylinder 18, which is connected to the lower end of the shell 1 through threads; a drain outlet 19, which is arranged at the bottom end of the water collection cylinder 18; and a drain connector 20, which is installed on the drain outlet 19 through threads.

[0069] Furthermore, it also includes a sealing portion 21, which is arranged at the upper end of the drain joint 20; a sealing ring 22, which is fixedly connected to the sealing portion 21; a drainage channel 23, which passes through the sealing portion 21 downward and out of the drain joint 20; and an adjusting portion 24, which is arranged at the lower end of the drain joint 20.

[0070] Furthermore, the water collection tube 18 is configured to be transparent.

[0071] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the fuel enters the housing 1 from the oil inlet, the fuel is filtered through the filter paper cylinder 7, and the fuel after filtration is discharged from the oil outlet. During the driving of the car, there will be water in the fuel. Since the density of water is higher than that of oil, the water and fuel will automatically separate, and the water will separate below the fuel. The separated water falls from the installation gap between the upper ring cover 5 and the interior of the housing 1 into the water collection cylinder 18. A drainage joint 20 is installed at the lower end of the water collection cylinder 18 for drainage. When drainage is required, the adjustment part 24 is screwed to move the drainage joint 20 upward as a whole, and the sealing part 21 is screwed until it is higher than the lower end surface of the interior of the water collection cylinder 18, and the sealing ring 22 is separated from the limit surface of the water collection cylinder 18, so that the upper end of the drainage channel 23 is not closed, and water flows into the drainage channel 23 and is discharged from the drainage channel 23. The water collection tube 18 is made of transparent plastic material, which can better observe the amount of water accumulated inside the water collection tube 18 and facilitate the decision whether to discharge the water in the water collection tube 18. The water collection tube 18 is installed at the lower end of the shell 1 through threads, which is convenient for manual disassembly and assembly of the water collection tube 18, and facilitates later replacement and cleaning.

[0072] Example 3:

[0073] like Figure 1 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes: a filter cartridge 25, which is fixedly installed in the water collection cylinder 18; a partition 26, which is fixedly installed in the filter cartridge 25; and a support assembly 27, which is fixedly installed on the partition 26.

[0074] Furthermore, it also includes a second spring 28 , the lower end of which is fixedly connected to the partition 26 ; a movable plate 29 , which is fixedly connected to the upper end of the second spring 28 ; and a plurality of push rods 30 , which are evenly distributed on the upper end surface of the partition 26 .

[0075] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the filter paper cylinder 7 will filter the impurities in the fuel, part of which will adhere to the filter paper cylinder 7, and part of which will sink into the water collection cylinder 18 due to the weight of the impurities themselves. It is necessary to filter and clean the impurities in the water collection cylinder 18, and install the filter cylinder 25 into the card slot at the upper end of the water collection cylinder 18. Use the filter cylinder 25 to filter the impurities in the water, and the water and impurities enter the filter cylinder 25 together. The water and impurities exert a certain pressure on the movable plate 29, causing the movable plate 29 to compress the first The second spring 28 moves downward. When the movable plate 29 moves to a certain distance, the push rods 30 at the upper end of the partition 26 punch through the filter holes on the surface of the movable block. Since the push rods 30 are arranged in a "T" shape, the filter holes on the movable block are larger than the top diameter of the push rods 30. When the movable block moves to the position of the push rods 30, it will also interfere with the movable block. The upper end of the push rods 30 can push out impurities blocked in the filter holes of the movable block, so that a gap is formed between the impurities and the filter holes, and water flows out from the gap, effectively preventing impurities from clogging the filter holes of the movable plate 29. Filter holes are provided on the filter cartridge 25, the partition plate 26 and the movable plate 29, which can effectively filter the impurities in the water and separate the water and impurities. The impurities are collected by the filter cartridge 25, and the impurities will not sink to the lower end of the water collection cylinder 18 and block the drainage channel 23 of the drainage joint 20. When the impurities need to be cleaned, the water collection cylinder 18 is first unscrewed from the lower end of the shell 1, and then the filter cartridge 25 is removed from the slot of the water collection cylinder 18, and the impurities in the filter cartridge 25 are poured out to facilitate the cleaning of the impurities in the filter cartridge 25.

[0076] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0077] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A fuel water separator, comprising a housing (1), a cover (2), an oil inlet (3), an oil outlet (4), an upper ring cover (5), a lower ring cover (6) and a filter paper cylinder (7), characterized in that: Also includes: A connecting unit (8) fixedly mounted on the upper ring cover (5); A magnetic conductive ring (9) is provided on the lower end surface of the cover body (2); The upper end of the connecting unit (8) is in contact with the magnetic ring (9), and the cover (2) is mounted on the housing (1) via the connecting unit (8); The connecting unit (8) comprises: An electromagnet ring (10) is fixedly sleeved outside the upper ring cover (5); A plurality of damping telescopic rods (11), each of which is fixedly connected to the electromagnet ring (10); A plurality of first springs (12), the lower ends of which are fixedly connected to the electromagnet ring (10) and are respectively sleeved on the damping telescopic rods (11); The top ends of the plurality of damping telescopic rods (11) are in contact with the magnetic ring (9), and the upper end surfaces of the first springs (12) are also in contact with the magnetic ring (9); Also includes: A water collection cylinder (18) connected to the lower end of the housing (1) via threads; A drain outlet (19) is provided at the bottom end of the water collection cylinder (18); A drain connector (20) is screwed onto the drain port (19); Also includes: A filter cartridge (25) fixedly mounted in the water collection cartridge (18); a partition (26) fixedly mounted in the filter cartridge (25); a support assembly (27) fixedly mounted on the partition (26); Also includes: a second spring (28), the lower end of which is fixedly connected to the partition (26); a movable plate (29) fixedly connected to the upper end of the second spring (28); A plurality of push rods (30) are evenly distributed on the upper end surface of the partition (26).

2. A fuel-water separator according to claim 1, characterized in that: Also includes: A filter screen (13) is provided on the electromagnet ring (10).

3. The fuel-water separator according to claim 1, characterized in that: Also includes: a pair of fixing portions (14) respectively arranged on the outer wall of the cover body (2); a pair of limiting columns (15) fixedly connected to the lower ends of the fixing portions (14); A pair of ear blocks (16) respectively arranged on the outer wall of the housing (1); A pair of positioning holes (17), respectively provided on each of the ear blocks (16); Wherein, a pair of ear blocks (16) corresponds to the position of each fixed block, and each limiting column (15) can be inserted into the positioning hole (17).

4. The fuel-water separator according to claim 1, characterized in that: Also includes: a sealing portion (21) provided at the upper end of the drainage joint (20); A sealing ring (22) fixedly connected to the sealing portion (21); A drainage channel (23) extending downward from the sealing portion (21) to the outside of the drainage joint (20); An adjusting portion (24) is provided at the lower end of the drainage joint (20).

5. The fuel-water separator according to claim 1, characterized in that: The water collection cylinder (18) is configured to be transparent.

6. A method for replacing a fuel water separator and a filter element thereof applicable to claim 1, characterized in that: The following steps are involved: S1. Remove the cover: close the electromagnet ring (10), so that the magnetic ring (9) loses its magnetic force, and the spring resets and pushes the magnetic ring (9) to drive the cover (2) to separate from the housing (1); S2. Replace the filter paper cartridge (7): remove the upper ring cover (5) and take out the filter paper cartridge (7) for replacement; S3. Sealing the cover: Install the filter paper cylinder (7), the upper ring cover (5) and the cover body (2) onto the housing (1) in sequence, and start the electromagnet ring (10) to give the magnetic ring (9) an adsorption force to ensure the stability of the installation of the cover body (2) and the housing (1).

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