Anti-blocking fuel tank

Abstract

The utility model discloses an anti-blocking fuel tank, which relates to the technical field of fuel tanks and comprises an upper fuel tank body and a lower fuel tank body, a fuel inlet and a vent are arranged on the upper fuel tank body, the upper fuel tank body is used as the upper half part of the fuel tank, and the fuel inlet on the upper fuel tank body is connected with an anti-blocking device. The anti-blocking device comprises filter screens, a filter screen frame, an anti-blocking pipe channel, an impurity discharge port and a connecting and detaching structure, the connecting and detaching structure is connected to the oil inlet, the anti-blocking pipe channel is arranged on the connecting and detaching structure, the impurity discharge port is formed in the side face of the anti-blocking pipe channel, and the filter screens are arranged in the anti-blocking pipe channel through the filter screen frame; according to the fuel tank, the problems that a traditional fuel tank is prone to being blocked and difficult to maintain, and the safety is poor are solved, the reliability of the fuel tank is improved, and the service life of the fuel tank is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel tanks, and particularly relates to an anti-blocking fuel tank. Background Art

[0002] During the design and use of fuel tanks, the problem of blockage has been a long-standing technical problem. Such blockages not only affect the normal supply of fuel but may also lead to a decline in engine performance and even cause malfunctions. During the long-term use of a fuel tank, various impurities will remain inside, including fuel organic derivatives, rust slag, moisture, etc. These impurities gradually accumulate at the bottom of the fuel tank, forming sludge. When fuel is pumped by a fuel pump, these impurities are easily carried into the fuel system, thus blocking components such as the fuel coarse filter and fine filter. The fuel tank needs to maintain a certain degree of airtightness to prevent fuel leakage and the entry of external impurities. However, overly strict airtightness may cause changes in the internal air pressure of the fuel tank, thereby affecting the normal operation of the fuel system. Especially during the fuel consumption process, a negative pressure will be generated inside the fuel tank. If there is no effective ventilation system, it may cause damage to the fuel tank structure. To sum up, due to various technical problems faced by fuel tanks during use, an anti-blocking fuel tank is proposed to effectively solve these problems and improve the performance and reliability of fuel tanks. Summary of the Utility Model

[0003] The utility model aims to at least partly solve the technical problem that various impurities remain inside and cause blockage during the long-term use of a fuel tank. For this purpose, the utility model proposes an anti-blocking fuel tank.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an anti-blocking fuel tank, which specifically includes an upper fuel tank body and a lower fuel tank body. An oil inlet and a ventilation port are provided on the upper fuel tank body. The upper fuel tank body serves as the upper half of the fuel tank. The lower fuel tank body is connected to the upper fuel tank body to jointly form the complete structure of the fuel tank. An anti-blocking device is connected to the oil inlet on the upper fuel tank body. The anti-blocking device includes a filter screen, a filter screen frame, an anti-blocking pipe channel, an impurity discharge port, and a connection and disassembly structure. The connection and disassembly structure is arranged on the oil inlet. The anti-blocking pipe channel is arranged on the connection and disassembly structure. The impurity discharge port is arranged on the side of the anti-blocking pipe channel. Multiple layers of the filter screen are arranged in the anti-blocking pipe channel through the filter screen frame. A ventilation float valve and a seal are provided on the ventilation port.

[0005] In a preferred embodiment of the utility model, a liquid level sensor is installed inside the lower fuel tank body to monitor the liquid level of the fuel in the fuel tank.

[0006] In a preferred embodiment of the utility model, the multiple layers of the filter screen are fine and gradually thicken.

[0007] In a preferred embodiment of the present utility model, the connection and disassembly structure adopts a quick-locking snap claw, and the claw head of the quick-locking snap claw is connected to the edge of the boss of the anti-blocking pipe channel.

[0008] In a preferred embodiment of the present utility model, a honeycomb flow guide plate is arranged in the fuel inlet.

[0009] The beneficial effects of the present utility model are as follows: After adopting the above structure, the anti-blocking device includes multiple layers of fine and gradually thickening filter nets, which can effectively filter impurities entering the fuel tank, such as dust, particulate matter, etc., thereby preventing these impurities from depositing in the fuel tank and causing blockage; the anti-blocking device is connected to the fuel inlet through the connection and disassembly structure, making the replacement and cleaning of the filter net and its frame very convenient and fast. When the filter net accumulates too many impurities, it can be easily removed and cleaned or replaced to ensure the continuous smooth operation of the fuel tank; the ventilation float valve and seal arranged on the ventilation port automatically adjust when the pressure in the fuel tank changes, preventing potential safety hazards caused by excessive pressure difference between the inside and outside of the fuel tank. The liquid level sensor can real-time monitor the liquid level of the fuel in the fuel tank, and the honeycomb flow guide plate arranged in the fuel inlet can optimize the flow path of the fuel entering the fuel tank, reducing the vortex and turbulence during the fuel flow. In summary, the anti-blocking fuel tank of the present utility model effectively solves the problems of easy blockage, difficult maintenance, and poor safety of traditional fuel tanks through its unique design and structure, improves the reliability and service life of the fuel tank, and also brings a more convenient and safe vehicle use experience to users. Description of the Drawings

[0010] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0011] Figure 2 is a schematic diagram of the structure of the anti-blocking device of the present utility model;

[0012] Figure 3 is a three-dimensional structure schematic diagram of the upper body of the fuel tank of the present utility model;

[0013] Figure 4 is a three-dimensional structure schematic diagram of the lower body of the fuel tank of the present utility model;

[0014] In the figure: 1 - upper body of the fuel tank, 2 - lower body of the fuel tank, 3 - fuel inlet, 4 - ventilation port, 5 - filter net, 6 - filter net frame, 7 - anti-blocking pipe channel, 8 - impurity discharge port, 9 - connection and disassembly structure, 10 - ventilation float valve, 11 - seal, 12 - liquid level sensor, 13 - honeycomb flow guide plate. Detailed Embodiments

[0015] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0016] As Figure 1 - Figure 4 shown, an anti-blocking fuel tank specifically includes an upper fuel tank body 1 and a lower fuel tank body 2. An oil inlet 3 and a ventilation port 4 are provided on the upper fuel tank body 1. The upper fuel tank body 1 serves as the upper half of the fuel tank. The lower fuel tank body 2 is connected to the upper fuel tank body 1 to jointly form the complete structure of the fuel tank. The oil inlet 3 on the upper fuel tank body 1 is connected to an anti-blocking device. The upper fuel tank body 1 and the lower fuel tank body 2 are designed with a reasonable division, which is convenient for manufacturing, installation, and maintenance. The oil inlet 3 and the ventilation port 4 provided on the upper fuel tank body 1 are respectively used for the output of fuel and the air pressure balance inside and outside the fuel tank, ensuring the smooth flow of fuel and the safety of the fuel tank. The anti-blocking device includes a filter screen 5, a filter screen frame 6, an anti-blocking pipe channel 7, an impurity discharge port 8, and a connection and disassembly structure 9. The connection and disassembly structure 9 is arranged and connected to the oil inlet 3. The anti-blocking pipe channel 7 is arranged on the connection and disassembly structure 9. The impurity discharge port 8 is arranged on the side of the anti-blocking pipe channel 7. The multi-layer filter screen 5 is arranged in the anti-blocking pipe channel 7 through the filter screen frame 6. A ventilation float valve 10 and a seal 11 are provided on the ventilation port 4. In implementation, the design of the multi-layer filter screen 5 enables impurities of different sizes to be effectively intercepted, gradually filtering out fine particles, sediments, and other impurities in the fuel, preventing them from entering the fuel system and possibly causing damage to the engine or other components. The filter screen frame 6 provides a stable support structure for the multi-layer filter screen 5, ensuring that the filter screen maintains the correct position and shape during the fuel flow process and will not deform or shift due to the impact of the fuel, thus maintaining an efficient filtering effect. The anti-blocking pipe channel 7 serves as the channel for fuel to pass through the filter screen 5, ensuring that the fuel can smoothly flow through the filter screen and flow towards the oil inlet, providing a convenient space and interface for the installation and maintenance of the filter screen. The impurity discharge port 8 is arranged on the side of the anti-blocking pipe channel 7, facilitating the discharge of the impurities and sediments intercepted during the filtering process from the fuel tank when cleaning or replacing the filter screen, keeping the filter screen clean and filtering efficiency, and extending its service life. The connection and disassembly structure 9 tightly connects the anti-blocking device to the oil inlet 3, ensuring that the fuel will not flow out directly bypassing the filter screen, enabling users to conveniently and quickly disassemble and install the anti-blocking device for maintenance or replacement of the filter screen. The ventilation float valve 10 is used to control the air pressure balance inside and outside the fuel tank, preventing the fuel tank from being damaged due to excessive pressure. The seal 11 provides an additional sealing effect to ensure the sealing performance of the ventilation port 4 in the closed state.

[0017] As Figure 4As shown, based on the above method, further, a liquid level sensor 12 is installed inside the lower body 2 of the fuel tank to monitor the liquid level of the fuel in the fuel tank. In implementation, the liquid level sensor 12 is installed inside the lower body 2 of the fuel tank to monitor the liquid level of the fuel in the fuel tank in real time. By connecting to the vehicle instrument system, the remaining fuel quantity can be displayed in real time, reminding the driver to refuel in time to avoid driving interruption caused by fuel exhaustion.

[0018] As Figure 2 shown, based on the above method, further, the filter screen is multi-layered, fine and gradually thickens. In implementation, it will go through multiple filtrations. Each layer of the filter screen can intercept impurities of a certain size. The design of the filter screen from fine to thick enables impurities of different sizes to be effectively intercepted. The fine filter screen can intercept tiny particles and impurities, while the thicker filter screen can further block larger particles and sediments. Through the design of multi-layer filtration and gradual thickening, the blockage phenomenon of the filter screen is reduced. Larger impurities are intercepted when passing through the previous filter screen, and the impurity load borne by the subsequent filter screen will be correspondingly reduced.

[0019] As Figure 2 shown, based on the above method, further, the connection and disassembly structure 9 adopts a quick-locking snap claw, and the claw head of the quick-locking snap claw is connected to the convex edge of the anti-blocking pipe channel 7. In implementation, the quick-locking snap claw enables the anti-blocking device to be quickly and firmly installed on the fuel inlet 3. When it is necessary to clean or replace the filter screen, the user can quickly disassemble the anti-blocking device. The convenience improves the efficiency of maintenance work and reduces the risk of fuel leakage or other problems that may be caused by long-term disassembly. The quick-locking snap claw is tightly connected to the convex edge of the anti-blocking pipe channel 7 through its claw head to form a reliable seal. This seal helps to prevent fuel from leaking from the connection during the filtration process.

[0020] As Figure 3 shown, based on the above method, further, a honeycomb flow guide plate 13 is arranged inside the fuel inlet 3. In implementation, the honeycomb flow guide plate 13 is arranged inside the fuel inlet 3. Through its unique honeycomb structure, it can evenly distribute the fuel flow, reduce vortex and turbulence phenomena, improve the stability of fuel flow, and thus further reduce the risk of impurity deposition and blockage.

[0021] In the specific working process of this new type of anti-blocking fuel tank, when fuel enters the fuel tank from the outside through a pipeline or a fuel gun, it first passes through the fuel inlet 3. The honeycomb deflector 13 inside the fuel inlet 3 plays a crucial role. Through its honeycomb structure, it evenly distributes the fuel flow, reduces eddies and turbulence, and enables the fuel to flow towards the anti-blocking device in a stable manner. The fuel then enters the anti-blocking pipe channel 7 of the anti-blocking device. Inside the anti-blocking pipe channel 7, the multi-layer filter screen 5 gradually filters the fuel. First, the finest filter screen intercepts tiny particles and impurities; subsequently, the filter screens with gradually coarser meshes further block larger particles and sediments. This design of multi-layer filtration and gradually increasing coarseness ensures that impurities of different sizes can be effectively intercepted, thereby preventing them from entering the fuel system and potentially causing damage to the engine or other components. During the filtration process, the intercepted impurities and sediments accumulate on the filter screen. When it is necessary to clean or replace the filter screen, the accumulated impurities and sediments can be discharged from the fuel tank through the impurity discharge port 8 to keep the filter screen clean and maintain its filtration efficiency. The filtered clean fuel continues to flow towards the lower body 2 of the fuel tank and is stored inside the fuel tank. The ventilation port 4 on the upper body 1 of the fuel tank is provided with a ventilation float valve 10 and a seal 11 to control the air pressure balance inside and outside the fuel tank. When the internal pressure of the fuel tank is too high, the ventilation float valve 10 will automatically open to release some pressure; when the internal pressure of the fuel tank returns to normal, the seal 11 ensures the airtightness of the ventilation port 4. The liquid level sensor 12 installed inside the lower body 2 of the fuel tank continuously monitors the liquid level of the fuel in the fuel tank. By connecting to the vehicle instrument system, the liquid level sensor 12 can transmit the real-time liquid level information to the driver, reminding the driver to refuel in a timely manner to avoid driving interruptions caused by fuel exhaustion. When it is necessary to clean or replace the filter screen, the user can quickly disassemble the anti-blocking device by using the quick-locking snap claws through the connection and disassembly structure 9 for necessary maintenance work. After the maintenance work is completed, the user can firmly install the anti-blocking device on the fuel inlet 3 again through the connection and disassembly structure 9 to ensure the smoothness of fuel flow and the safety of the fuel tank. In summary, this new type of anti-blocking fuel tank realizes the effective filtration and protection of fuel through a refined filtration design, an effective impurity treatment mechanism, a reasonable control of the air pressure balance in the fuel tank, and real-time liquid level monitoring and reminder, ensuring the normal operation of the fuel system and the safe driving of the vehicle.

[0022] In the description of this specification, the description with reference to terms such as "one embodiment", "certain embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the said embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0023] In summary, although the present utility model has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present utility model. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the claims.

Claims

1. An anti-clogging fuel tank, the anti-clogging fuel tank specifically comprising a fuel tank upper body (1) and a fuel tank lower body (2), characterized in that: The fuel tank upper body (1) is provided with an oil inlet (3) and an air vent (4). The fuel tank upper body (1) serves as the upper half of the fuel tank. The fuel tank lower body (2) is connected to the fuel tank upper body (1) to form a complete structure of the fuel tank. The oil inlet (3) on the fuel tank upper body (1) is connected to an anti-blocking device. The anti-blocking device comprises a filter screen (5), a filter screen frame (6), an anti-blocking pipe channel (7), an impurity discharge port (8) and a connection and disassembly structure (9). The connection and disassembly structure (9) is connected to the oil inlet (3). The anti-blocking pipe channel (7) is arranged on the connection and disassembly structure (9). The impurity discharge port (8) is arranged on the side of the anti-blocking pipe channel (7). The multiple layers of the filter screen (5) are arranged in the anti-blocking pipe channel (7) through the filter screen frame (6). The air vent (4) is provided with a venting float valve (10) and a sealing member (11).

2. The anti-clogging fuel tank according to claim 1, characterized in that: A liquid level sensor (12) is installed in the lower body (2) of the fuel tank for monitoring the liquid level of the fuel in the fuel tank.

3. The anti-clogging fuel tank according to claim 1, characterized in that: The filter screen (5) has multiple layers of fineness and gradually becomes thicker.

4. The anti-clogging fuel tank according to claim 1, characterized in that: The connection and disassembly structure (9) adopts a quick-locking buckle claw, and the claw head of the quick-locking buckle claw is connected to the edge of the boss of the anti-blocking pipe channel (7).

5. The anti-clogging fuel tank according to claim 1, characterized in that: A honeycomb guide plate (13) is arranged inside the oil inlet (3).

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