No-clean filter screen structure

By designing a self-cleaning filter structure in the fuel tank of commercial fuel stoves, the filter can be automatically cleaned by the kinetic energy of the oil, thus solving the problem of filter clogging and improving the maintenance efficiency and service life of the equipment.

CN224220895UActive Publication Date: 2026-05-12SHANDONG XINTAI QIUSHI ENERGY SAVING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG XINTAI QIUSHI ENERGY SAVING TECH CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Oil tank filters in commercial fuel stoves tend to accumulate grease and impurities over time, leading to clogging and requiring frequent disassembly and cleaning, which affects equipment efficiency and increases downtime.

Method used

A self-cleaning filter structure is designed. By using the kinetic energy of the oil during the refueling process to vibrate the filter screen, the adhering dirt is automatically cleaned, avoiding disassembly and cleaning. The cleaning components include a mounting frame, a fixing frame, a sealing side plate, and spring clips to achieve automatic cleaning.

Benefits of technology

实现了滤网的免拆卸清理,提高了维护效率,避免了部件损耗,保持设备正常运行。

✦ Generated by Eureka AI based on patent content.

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    Figure CN224220895U_ABST
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Abstract

The utility model provides a no-clean filter screen structure, which belongs to the technical field of kitchen range oil tanks and comprises an oil storage mechanism, an oil tank, an oil injection pipe communicated with the top of the oil tank, an oil discharge pipe communicated with one side of the oil tank and a filter screen arranged in the oil tank and used for filtering oil. The cleaning-free mechanism comprises a cleaning part used for cleaning the filter screen during oiling, and the cleaning part comprises a mounting frame fixedly mounted in the oil tank, two fixing frames arranged on the inner side of the mounting frame and used for mounting the filter screen, and a sealing side plate hinged to one side of the fixing frames and used for improving the sealing performance between the filter screen and the mounting frame; and the two mounting frames are rotationally connected through a hinge. The cleaning component is used for automatically cleaning the filter screen in the oiling process, the problem that the filter screen needs to be detached and cleaned after a traditional oil tank is used for a long time is solved, the effect of detaching-free cleaning is achieved, the maintenance efficiency is improved, and component loss caused by frequent detaching is avoided.
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Description

Technical Field

[0001] This utility model belongs to the technical field of stove oil tanks, specifically relating to a filter structure that does not require cleaning. Background Technology

[0002] The fuel tank of a commercial fuel-fired stove is a fuel storage device specifically designed for commercial kitchen stoves, primarily used to store liquid fuels such as diesel, kerosene, or biofuel. Its structure is typically made of corrosion-resistant metal materials (such as stainless steel), possessing safety features such as leak-proof sealing, fire resistance, and explosion protection, and integrating supporting components such as fuel level indicators, filtration systems, and fuel filler ports.

[0003] During long-term use, the internal filter of the fuel tank of commercial fuel stoves is prone to accumulating a large amount of oil and impurities. These grime can clog the filter, affecting the normal filtration and delivery of fuel. In order to maintain the normal operation of the fuel tank, the filter needs to be disassembled and thoroughly cleaned regularly. However, the frequent disassembly and cleaning process is not only time-consuming and labor-intensive, but also leads to increased equipment downtime, reducing the efficiency of the fuel tank and its working efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a cleaning-free filter structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A self-cleaning filter structure includes,

[0007] An oil storage mechanism includes an oil tank, an oil filling pipe connected to the top of the oil tank, an oil drain pipe connected to one side of the oil tank, and a filter screen installed inside the oil tank for filtering the oil.

[0008] The self-cleaning mechanism includes a cleaning component for cleaning the filter screen during refueling.

[0009] As a preferred embodiment of the present invention, the cleaning component includes a mounting frame fixedly installed inside the oil tank, two fixing frames disposed inside the mounting frame for installing the filter screen, and a sealing side plate hinged to one side of the fixing frame for increasing the sealing between the filter screen and the mounting frame.

[0010] The two mounting frames are rotatably connected by a hinge.

[0011] As a preferred embodiment of this utility model, two U-shaped spring pieces for applying elastic force to the fixed frame are fixedly installed at the bottom of the inner side of the mounting frame, and the two U-shaped spring pieces are in close contact with the surface of the fixed frame.

[0012] As a preferred embodiment of this utility model, the surface of the mounting frame is provided with two side grooves that move in conjunction with the sealing side plate, and the dimensions of the sealing side plate and the side grooves are adapted to each other.

[0013] As a preferred embodiment of this utility model, two blocks are fixedly installed on one side of the sealing side plate, and the blocks are used to limit the sealing side plate.

[0014] As a preferred embodiment of this utility model, the top and bottom of the fixed frame are fixedly installed with limiting protrusions, and the inner side of the mounting frame is provided with a limiting groove for use with the limiting protrusions.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by using a cleaning component to automatically clean the filter screen during the refueling process, the problem of needing to disassemble and clean the filter screen after long-term use of traditional fuel tanks is solved, achieving the effect of cleaning without disassembly, improving maintenance efficiency, and avoiding component wear caused by frequent disassembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fuel tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting frame and fixing frame structure of this utility model.

[0021] In the diagram: 100, oil storage mechanism; 110, oil tank; 120, oil filling pipe; 130, oil drain pipe; 140, filter screen; 200, self-cleaning mechanism; 210, cleaning component; 211, mounting frame; 212, fixing frame; 213, sealing side plate; 214, U-shaped spring; 215, side groove; 216, stop block; 217, limiting protrusion; 218, limiting groove. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figure 1-4 This is an embodiment of the present invention, which provides a self-cleaning filter structure, including:

[0027] The oil storage mechanism 100 includes an oil tank 110, an oil filling pipe 120 connected to the top of the oil tank 110, an oil drain pipe 130 connected to one side of the oil tank 110, and a filter screen 140 disposed inside the oil tank 110 for filtering the oil.

[0028] The self-cleaning mechanism 200 includes a cleaning component 210 for cleaning the filter 140 during refueling.

[0029] The cleaning component 210 automatically cleans the filter screen 140 during the refueling process, which solves the problem that the filter screen 140 needs to be disassembled and cleaned after long-term use of traditional fuel tanks. It achieves the effect of cleaning without disassembly, improves maintenance efficiency, and avoids component wear caused by frequent disassembly.

[0030] Specifically, the cleaning component 210 includes a mounting frame 211 fixedly installed inside the oil tank 110, two fixing frames 212 disposed inside the mounting frame 211 for mounting the filter screen 140, and a sealing side plate 213 hinged to one side of the fixing frame 212 for increasing the sealing between the filter screen 140 and the mounting frame 211.

[0031] The two mounting frames 211 are connected by a hinge.

[0032] When refueling the oil tank 110, the sealing plug on the oil filling pipe 120 is first removed, and the oil is introduced into the oil tank 110 through the oil filling pipe 120. When the oil passes through the oil tank 110, the kinetic energy of the falling oil will hit the filter screen 140, causing the filter screen 140 to fold and vibrate. The vibration will cause small particles of dirt attached to the surface of the filter screen 140 to fall off, thus achieving the purpose of cleaning the filter screen 140 and avoiding the need to disassemble and clean the filter screen 140.

[0033] Furthermore, two U-shaped spring pieces 214 for applying elastic force to the fixed frame 212 are fixedly installed on the bottom inner side of the mounting frame 211, and the two U-shaped spring pieces 214 are in close contact with the surface of the fixed frame 212.

[0034] The U-shaped spring 214 is used to spring open the fixed frame 212. When the fixed frame 212 is folded and vibrated, it is pushed by the elastic force of the U-shaped spring 214, which can make the fixed frame 212 return to its original position, thus avoiding excessive gaps between the fixed frames 212 and affecting the filtration performance of the oil.

[0035] Preferably, the surface of the mounting frame 211 has two side grooves 215 that cooperate with the movement of the sealing side plate 213, and the dimensions of the sealing side plate 213 and the side grooves 215 are adapted to each other.

[0036] The side groove 215 is used to limit the sealing side plate 213, so that it always maintains the sealing of the mounting frame 211 while moving, preventing the oil from being discharged without filtration.

[0037] Furthermore, two blocks 216 are fixedly installed on one side of the sealing side plate 213, and the blocks 216 are used to limit the sealing side plate 213.

[0038] The stop block 216 is used to limit the sealing side plate 213 to prevent the sealing side plate 213 from leaving the inside of the side groove 215.

[0039] Furthermore, limiting protrusions 217 are fixedly installed on the top and bottom of the fixed frame 212, and limiting grooves 218 are provided on the inner side of the mounting frame 211 to cooperate with the limiting protrusions 217.

[0040] The limiting protrusion 217 and the limiting groove 218 are used to limit the fixed frame 212, improve the stability of the fixed frame 212 during folding and vibration, and prevent it from shifting, which would cause the oil to be discharged without being filtered by the filter screen 140.

[0041] When refueling the oil tank 110, first remove the sealing plug on the oil filling pipe 120 and introduce the oil into the oil tank 110 through the oil filling pipe 120. When the oil passes through the oil tank 110, the kinetic energy of the falling oil will hit the filter screen 140, causing the filter screen 140 to fold and vibrate. The vibration will cause small particles of dirt attached to the surface of the filter screen 140 to fall off, thus achieving the purpose of cleaning the filter screen 140 and avoiding the need to disassemble and clean the filter screen 140.

[0042] In summary, by using the cleaning component 210 to automatically clean the filter screen 140 during the refueling process, the problem of needing to disassemble and clean the filter screen 140 after long-term use of traditional fuel tanks is solved, achieving the effect of cleaning without disassembly, improving maintenance efficiency, and avoiding component wear caused by frequent disassembly.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A self-cleaning filter structure, characterized in that: include, The oil storage mechanism (100) includes an oil tank (110), an oil filling pipe (120) connected to the top of the oil tank (110), an oil drain pipe (130) connected to one side of the oil tank (110), and a filter screen (140) disposed inside the oil tank (110) for filtering the oil. The self-cleaning mechanism (200) includes a cleaning component (210) for cleaning the filter screen (140) during refueling.

2. The self-cleaning filter structure according to claim 1, characterized in that: The cleaning component (210) includes a mounting frame (211) fixedly installed inside the oil tank (110), two fixing frames (212) disposed inside the mounting frame (211) for mounting the filter screen (140), and a sealing side plate (213) hinged to one side of the fixing frame (212) for increasing the sealing between the filter screen (140) and the mounting frame (211); The two mounting frames (211) are rotatably connected by a hinge.

3. The self-cleaning filter structure according to claim 2, characterized in that: Two U-shaped spring pieces (214) for applying elastic force to the fixed frame (212) are fixedly installed on the bottom of the inner side of the mounting frame (211). The two U-shaped spring pieces (214) are in close contact with the surface of the fixed frame (212).

4. The self-cleaning filter structure according to claim 3, characterized in that: The surface of the mounting frame (211) has two side grooves (215) that move with the sealing side plate (213), and the dimensions of the sealing side plate (213) and the side grooves (215) are adapted to each other.

5. The self-cleaning filter structure according to claim 4, characterized in that: Two blocks (216) are fixedly installed on one side of the sealing side plate (213), and the blocks (216) are used to limit the sealing side plate (213).

6. The self-cleaning filter structure according to claim 5, characterized in that: Limiting protrusions (217) are fixedly installed at the top and bottom of the fixed frame (212), and a limiting groove (218) is provided on the inner side of the mounting frame (211) to cooperate with the limiting protrusions (217).