Oil tank with filtering structure

By introducing a rotating scraping mechanism and a dirt storage mechanism into the fuel tank filter structure, the problem of filter screen and filter element clogging caused by impurity accumulation is solved, achieving stable fuel flow and long service life of filter screen and filter element.

CN224200744UActive Publication Date: 2026-05-05常州兴连栋机械科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
常州兴连栋机械科技有限公司
Filing Date
2025-07-03
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In the long-term use of existing fuel tank filtration structures, impurities accumulate, causing the filter screen and filter element to become clogged, affecting fuel flow and shortening service life.

Method used

A fuel tank filter structure with a rotary scraping mechanism was designed. The rotary scraping mechanism is driven by the flow of fuel to scrape off impurities, and the impurities are collected in a centralized manner by a sludge storage mechanism to avoid clogging and extend the life of the filter screen and filter element.

Benefits of technology

It achieves dynamic removal of accumulated impurities, avoids local blockage, ensures stable fuel flow, significantly extends the service life of the filter screen and filter element, and improves maintenance efficiency and system reliability.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an oil tank with a filtering structure, and relates to the technical field of oil tank filtering. The oil tank comprises an oil tank body, a splicing filtering mechanism is arranged in the oil tank body, a rotary scraping mechanism is arranged at the filtering end of the splicing filtering mechanism, a rotary dismounting mechanism is arranged at the joint of the splicing filtering mechanism and the oil tank body, and a dirt storage mechanism is arranged at one end of the splicing filtering mechanism. Fuel oil is injected into the oil tank body, and the rotating end of the rotating scraping mechanism is driven to rotate when the fuel oil flows so as to drive the scraping end of the rotating scraping mechanism to rotate, so that the scraping end of the rotating scraping mechanism rotates along the filtering end of the spliced filtering mechanism, and fuel oil impurities on the surface of the filtering end are scraped; according to the self-driven rotary scraping design, kinetic energy generated when fuel oil is injected is converted into cleaning power, accumulated impurities can be dynamically removed, filtering efficiency attenuation caused by local blockage is avoided, stable circulation of the fuel oil can be guaranteed, and the service life of a filter screen and the service life of a filter element are remarkably prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of fuel tank filtration technology, and more specifically, it relates to a fuel tank with a filtration structure. Background Technology

[0002] Fuel tanks, as containers for storing oily liquids, are widely used in motor vehicles, machinery, chemical and pharmaceutical fields. Since everyday fuel contains various impurities, fuel tanks are equipped with filtration structures. Using filter screens, filter elements, and other filtration components, they effectively intercept impurities, particles, moisture, and other contaminants in the fuel, ensuring the cleanliness of the fuel entering the fuel system and preventing problems such as engine wear, fuel line blockage, and fuel injector malfunction caused by impurities.

[0003] In existing fuel tank filtration structures, impurities in fuel are mainly intercepted by filter media such as filter screens and filter elements. During operation, fuel flows naturally and passes through the filtration structure. Impurities are blocked by the filter media, while clean fuel enters the fuel tank for subsequent supply to equipment.

[0004] However, in the long-term use of existing fuel tank filtration structures, impurities in the fuel are continuously intercepted and accumulated by the filter media, causing impurities to adhere to the surface of the filter screen and filter element. This gradually clogs the filter screen and filter element, severely hindering the normal flow of fuel and ultimately preventing fuel from being delivered smoothly into the fuel tank, thus affecting the service life of the filter screen and filter element. Utility Model Content

[0005] In response to the problem that filters and filter elements gradually become clogged with long-term use in related technologies, this utility model proposes an oil tank with a filtration structure to overcome the aforementioned technical problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is an oil tank with a filtration structure, including an oil tank body, an internal splicing filtration mechanism, a rotating scraping mechanism at the filter end of the splicing filtration mechanism, a rotating disassembly mechanism at the connection between the splicing filtration mechanism and the oil tank body, and a sludge storage mechanism at one end of the splicing filtration mechanism.

[0008] Fuel is injected into the fuel tank body. When the fuel flows, it drives the rotating end of the rotary scraping mechanism to rotate, so that the rotating end drives the scraping end of the rotary scraping mechanism to rotate, and the scraping end rotates along the filter end of the splicing filter mechanism.

[0009] Furthermore, the splicing filter mechanism includes a mounting frame, which is slidably connected to the opening of the oil tank body. A first filter screen is threadedly connected to one end of the mounting frame, a transition plate is threadedly connected to one end of the first filter screen, and a second filter screen is threadedly connected to one end of the transition plate.

[0010] Furthermore, the rotary scraping mechanism includes a support frame, which is fixedly connected inside the transition plate. A cleaning frame is rotatably connected inside the support frame. Scrapers are fixedly connected to both ends of the cleaning frame. The scrapers are slidably connected to the surfaces of the first and second filter screens. Turbine blades are fixedly connected to the surface of the cleaning frame.

[0011] Furthermore, the rotating disassembly mechanism includes a mounting plate, which is fixedly connected to both sides of the mounting frame. A slot is provided on the top of the oil tank body, and the mounting plate is engaged in the slot. A tank cover is threadedly connected to the opening of the oil tank body.

[0012] Furthermore, a fixed rod is slidably connected inside the fuel tank body, a limit plate is fixedly connected to the surface of the fixed rod, the limit plate is slidably connected inside the fuel tank body, a spring is fixedly connected to one end of the limit plate, and the spring is fixedly connected to the inside of the fuel tank body. An installation hole is opened on the surface of the mounting plate, and the fixed rod is engaged in the installation hole.

[0013] Furthermore, the wastewater storage mechanism includes a wastewater discharge net, which is threadedly connected to one end of the second filter screen. A magnet is fixedly connected inside the wastewater discharge net, and filter elements are fixedly connected inside the first filter screen, the second filter screen, and the wastewater discharge net.

[0014] Furthermore, a fuel level indicator is fixedly installed on one side of the fuel tank body.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model injects fuel into the fuel tank. As the fuel flows, it drives the rotating end of the rotary scraping mechanism to rotate, which in turn drives the scraping end of the rotary scraping mechanism to rotate. This causes the scraping end to rotate along the filter end of the spliced ​​filter mechanism, scraping off fuel impurities from the surface of the filter end. This self-driven rotary scraping design converts the kinetic energy of fuel injection into cleaning power, which can dynamically remove accumulated impurities, avoid the filtration efficiency reduction caused by local blockage, ensure stable fuel flow, and significantly extend the service life of the filter screen and filter element.

[0017] 2. This utility model uses a rotating scraping mechanism to clean impurities from the surfaces of the first and second filter screens. The scraped impurities fall into the drain screen, where a built-in magnet attracts magnetic impurities for precise collection. When maintenance is required, the first and second filter screens can be disassembled to simultaneously remove the drain screen. The drain screen is then rotated to separate the impurities, quickly completing the cleaning and resetting process. This design not only effectively prevents secondary contamination of the oil system by impurities but also centralizes the processing of dispersed impurities, significantly improving maintenance efficiency, reducing cleaning difficulty, and substantially enhancing the reliability and practicality of the oil tank filtration system.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a cross-sectional structural diagram of the splicing filter mechanism of this utility model;

[0024] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B;

[0025] Figure 6 This is a partial structural diagram of the opening of the fuel tank body of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Fuel tank body; 2. Splicing filter mechanism; 201. Mounting frame; 202. First filter screen; 203. Transition plate; 204. Second filter screen; 3. Rotary scraping mechanism; 301. Support frame; 302. Cleaning frame; 303. Scraper; 304. Turbine blade; 4. Rotary disassembly mechanism; 401. Mounting plate; 402. Slot; 403. Tank cover; 404. Fixing rod; 405. Limiting plate; 406. Spring; 407. Mounting hole; 5. Sludge storage mechanism; 501. Sludge discharge screen; 502. Magnet; 503. Filter element; 504. Fuel level indicator. Detailed Implementation

[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] Please see Figures 1-6 As shown, this utility model is an oil tank with a filtration structure, including an oil tank body 1, an oil tank body 1 with a splicing filtration mechanism 2 inside the oil tank body 1, a rotating scraping mechanism 3 at the filter end of the splicing filtration mechanism 2, a rotating disassembly mechanism 4 at the connection between the splicing filtration mechanism 2 and the oil tank body 1, and a sludge storage mechanism 5 at one end of the splicing filtration mechanism 2.

[0031] Fuel is injected into the fuel tank body 1. When the fuel flows, it drives the rotating end of the rotating scraping mechanism 3 to rotate, so that the rotating end of the rotating scraping mechanism 3 drives the scraping end of the rotating scraping mechanism 3 to rotate, so that the scraping end rotates along the filter end of the splicing filter mechanism 2.

[0032] By opening the fuel tank body 1 and injecting fuel into it, the flow of fuel drives the rotating end of the rotary scraping mechanism 3 to rotate, which in turn drives the scraping end of the rotary scraping mechanism 3 to rotate. This causes the scraping end to rotate along the filter end of the splicing filter mechanism 2, scraping off fuel impurities from the surface of the filter end. The fuel impurities then fall into the sludge storage mechanism 5. When it is necessary to discharge the fuel impurities, the rotary disassembly mechanism 4 is driven to detach the splicing filter mechanism 2 from the fuel tank body 1. Then, the sludge storage mechanism 5 is disassembled, and the fuel impurities inside the sludge storage mechanism 5 are cleaned. After this is completed, the sludge storage mechanism 5 is installed at one end of the splicing filter mechanism 2, and the splicing filter mechanism 2 is placed inside the fuel tank body 1. The rotary disassembly mechanism 4 is then driven to fix the splicing filter mechanism 2 to the fuel tank body 1.

[0033] By injecting fuel into the fuel tank body 1, the flow of fuel drives the rotating end of the rotary scraping mechanism 3 to rotate, which in turn drives the scraping end of the rotary scraping mechanism 3 to rotate, causing the scraping end to rotate along the filter end of the splicing filter mechanism 2, thus scraping off fuel impurities from the surface of the filter end. This self-driven rotary scraping design converts the kinetic energy of fuel injection into cleaning power, which can dynamically remove accumulated impurities, avoid the filtration efficiency reduction caused by local blockage, and ensure stable fuel flow, significantly extending the service life of the filter screen and filter element.

[0034] In one embodiment, the splicing filter mechanism 2 includes a mounting bracket 201, which is slidably connected to the opening of the oil tank body 1. One end of the mounting bracket 201 is threadedly connected to a first filter screen 202, one end of the first filter screen 202 is threadedly connected to a transition plate 203, and one end of the transition plate 203 is threadedly connected to a second filter screen 204.

[0035] The mounting bracket 201 supports the first filter screen 202, the second filter screen 204, and the transition plate 203. At the same time, the first filter screen 202 and the second filter screen 204 filter the fuel. The first filter screen 202 and the second filter screen 204 are also detachable, making it convenient to replace the first filter screen 202 and the second filter screen 204 with different pore sizes according to the type of fuel.

[0036] In one embodiment, the rotary scraping mechanism 3 includes a support frame 301, which is fixedly connected inside the transition plate 203. A cleaning frame 302 is rotatably connected inside the support frame 301. Scrapers 303 are fixedly connected to both ends of the cleaning frame 302. The scrapers 303 are slidably connected to the surfaces of the first filter screen 202 and the second filter screen 204. Turbine blades 304 are fixedly connected to the surface of the cleaning frame 302.

[0037] By injecting fuel into the fuel tank body 1, the fuel flows and contacts the turbine blades 304. The kinetic energy of the fuel flow drives the turbine blades 304 to rotate the cleaning frame 302 inside the support frame 301, converting the kinetic energy of the flowing fuel into mechanical energy. This causes the cleaning frame 302 to drive the scraper 303 to rotate, which in turn causes the scraper 303 to rotate on the surfaces of the first filter screen 202 and the second filter screen 204, scraping away impurities from the surfaces of the first filter screen 202 and the second filter screen 204.

[0038] In addition, both the turbine blades 304 and the scraper 303 are made of anti-static material, and will not generate sparks when rotating or colliding.

[0039] In one embodiment, the rotating disassembly mechanism 4 includes a mounting plate 401, which is fixedly connected to both sides of the mounting bracket 201. A slot 402 is provided on the top of the oil tank body 1, and the mounting plate 401 is engaged in the slot 402. A tank cover 403 is threadedly connected to the opening of the oil tank body 1. A fixing rod 404 is slidably connected inside the oil tank body 1. A limiting plate 405 is fixedly connected to the surface of the fixing rod 404. The limiting plate 405 is slidably connected inside the oil tank body 1. A spring 406 is fixedly connected to one end of the limiting plate 405. The spring 406 is fixedly connected to one end inside the oil tank body 1. A mounting hole 407 is provided on the surface of the mounting plate 401, and the fixing rod 404 is engaged in the mounting hole 407.

[0040] Open the tank body 1 by rotating the cover 403, move the fixing rod 404 upward, causing the fixing rod 404 to drive the limiting plate 405 to compress the spring 406. At this time, one end of the fixing rod 404 disengages from the mounting hole 407. Rotate the mounting bracket 201, causing the mounting bracket 201 to drive the mounting plate 401 to slide in the slot 402. Then move to the notch of the slot 402, slide the mounting plate 401 out of the slot 402, and drive the mounting bracket 201 to slide out of the tank body 1 together, completing the removal of the mounting bracket 201, the first filter screen 202, and the second filter screen 204. During installation, engage the mounting plate 401 in the notch of the slot 402, reverse the mounting plate 401, so that the mounting hole 407 moves corresponding to the fixing rod 404, release the fixing rod 404, and cause the spring 406 to drive the limiting plate 405 to slide, engaging the limiting plate 405 in the mounting hole 407 to complete the fixation.

[0041] In one embodiment, the aforementioned sludge storage mechanism 5 includes a sludge discharge net 501, which is threadedly connected to one end of the second filter net 204. A magnet 502 is fixedly connected inside the sludge discharge net 501. Filter elements 503 are fixedly connected inside the first filter net 202, the second filter net 204, and the sludge discharge net 501. An oil level display meter 504 is fixedly installed on one side of the oil tank body 1.

[0042] The scraper 303 rotates on the surfaces of the first filter screen 202 and the second filter screen 204, scraping away impurities. The scraped impurities fall into the drain screen 501. The filter element 503 inside the first filter screen 202, the second filter screen 204, and the drain screen 501 can enhance the filtration effect. The magnet 502 inside the drain screen 501 can attract magnetic impurities inside the drain screen 501. When it is necessary to clean the impurities in the drain screen 501, the drain screen 501 is moved out simultaneously when the first filter screen 202 and the second filter screen 204 are removed from the oil tank body 1. The drain screen 501 is rotated to remove it, and then it is cleaned. After cleaning, it is reset. The oil level display 504 makes it easy to see the remaining oil level in the oil tank body 1.

[0043] In addition, the first filter screen 202 and the second filter screen 204 are made of woven fiber mesh, which directly intercepts particulate impurities larger than the mesh openings, such as metal shavings and silt, by relying on the pore size; the filter element 503 is made of filter paper, sintered metal, activated carbon and other materials, which not only screens impurities through the pore size, but also uses the adsorption and deep interception properties of the materials to remove small particles, colloids, moisture and some harmful chemicals; the two work together to achieve graded purification of fuel from coarse filtration to fine filtration; the fuel level display 504 is used to monitor the fuel level in the fuel tank in real time and provide fuel level information to the user. It is measured by the capacitive principle, which uses the difference in dielectric constant between fuel and air to reflect the fuel level through the change in capacitance. This is existing technology and will not be described in detail.

[0044] Through the above technical solution, 1. By rotating the tank cover 403 to open the fuel tank body 1, fuel is injected into the fuel tank body 1. When the fuel flows, it comes into contact with the turbine blades 304. The kinetic energy of the fuel flow drives the turbine blades 304 to drive the cleaning frame 302 to rotate inside the support frame 301, converting the kinetic energy of the flowing fuel into mechanical energy, causing the cleaning frame 302 to drive the scraper 303 to rotate, causing the scraper 303 to rotate on the surface of the first filter screen 202 and the second filter screen 204, scraping away the impurities on the surface of the first filter screen 202 and the second filter screen 204. This self-driven rotary scraping design converts the kinetic energy of the fuel injection into cleaning power, which can dynamically remove accumulated impurities, avoid the filtration efficiency reduction caused by local blockage, and ensure stable fuel flow, significantly extending the service life of the filter screen and filter element. At the same time, this design greatly reduces the number of times the filter components need to be replaced or cleaned manually.

[0045] 2. By scraping away impurities from the surfaces of the first filter screen 202 and the second filter screen 204, the scraped impurities fall into the drain screen 501. The magnet 502 inside the drain screen 501 can attract the magnetic impurities inside the drain screen 501. When it is necessary to clean the impurities in the drain screen 501, when the first filter screen 202 and the second filter screen 204 are moved out of the oil tank body 1, the drain screen 501 is moved out simultaneously. Rotate the drain screen 501 to remove it, and then clean the drain screen 501. After that, it is reset. This design collects impurities in the drain screen 501, which not only prevents secondary pollution of the oil circuit, but also facilitates centralized treatment.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fuel tank with a filtration structure, comprising a fuel tank body (1), characterized in that, The oil tank body (1) is equipped with a splicing filter mechanism (2), the filter end of the splicing filter mechanism (2) is equipped with a rotating scraping mechanism (3), the connection between the splicing filter mechanism (2) and the oil tank body (1) is equipped with a rotating disassembly mechanism (4), and one end of the splicing filter mechanism (2) is equipped with a sludge storage mechanism (5). Fuel is injected into the fuel tank body (1). When the fuel flows, it drives the rotating end of the rotating scraping mechanism (3) to rotate, so that the rotating end drives the scraping end of the rotating scraping mechanism (3) to rotate, so that the scraping end rotates along the filter end of the splicing filter mechanism (2).

2. The oil tank with a filter structure according to claim 1, characterized in that, The splicing filter mechanism (2) includes a mounting frame (201), which is slidably connected to the opening of the oil tank body (1). One end of the mounting frame (201) is threadedly connected to a first filter screen (202), one end of the first filter screen (202) is threadedly connected to a transition plate (203), and one end of the transition plate (203) is threadedly connected to a second filter screen (204).

3. The oil tank with a filter structure according to claim 2, characterized in that, The rotary scraping mechanism (3) includes a support frame (301), which is fixedly connected inside the transition plate (203). A cleaning frame (302) is rotatably connected inside the support frame (301). Scrapers (303) are fixedly connected to both ends of the cleaning frame (302). The scrapers (303) are slidably connected to the surfaces of the first filter screen (202) and the second filter screen (204). Turbine blades (304) are fixedly connected to the surface of the cleaning frame (302).

4. The oil tank with a filter structure according to claim 3, characterized in that, The rotating disassembly mechanism (4) includes a mounting plate (401), which is fixedly connected to both sides of the mounting frame (201). A slot (402) is provided above the oil tank body (1), and the mounting plate (401) is engaged in the slot (402). A tank cover (403) is threadedly connected to the opening of the oil tank body (1).

5. An oil tank with a filter structure according to claim 4, characterized in that, A fixed rod (404) is slidably connected inside the fuel tank body (1). A limiting plate (405) is fixedly connected to the surface of the fixed rod (404). The limiting plate (405) is slidably connected inside the fuel tank body (1). A spring (406) is fixedly connected to one end of the limiting plate (405). One end of the spring (406) is fixedly connected inside the fuel tank body (1). An installation hole (407) is opened on the surface of the mounting plate (401). The fixed rod (404) is engaged in the installation hole (407).

6. The oil tank with a filter structure according to claim 5, characterized in that, The waste storage mechanism (5) includes a waste discharge net (501), which is threaded to one end of a second filter net (204). A magnet (502) is fixedly connected inside the waste discharge net (501). Filter cores (503) are fixedly connected inside the first filter net (202), the second filter net (204), and the waste discharge net (501).

7. An oil tank with a filter structure according to claim 6, characterized in that, A fuel level indicator (504) is fixedly installed on one side of the fuel tank body (1).