Closed type fuel filling system

Abstract

The utility model provides a closed fuel filling system which comprises a special barrel for alcohol-based liquid fuel, the special barrel for alcohol-based liquid fuel is an oval box body, a first reverse thread connector is arranged on one side of the top of the special barrel for alcohol-based liquid fuel, a fuel transition box is arranged on one side of the special barrel for alcohol-based liquid fuel, and a second reverse thread connector is arranged on the other side of the special barrel for alcohol-based liquid fuel. The fuel transition box is semicircular, a first quick self-closing connector is arranged on one side of the fuel transition box, a connecting pipe is arranged between the special barrel for the alcohol-based liquid fuel and the fuel transition box, the special barrel for the alcohol-based liquid fuel is communicated with the fuel transition box through the connecting pipe, and the connecting pipe is a hose. A first reverse thread connector is fixed to one end of the connecting pipe, a second reverse thread connector is fixed to one end of the connecting pipe, the second reverse thread connector is fixedly connected with the first reverse thread connector in a threaded mode, a second rapid self-closing connector is fixed to the other end of the connecting pipe, and the first rapid self-closing connector is fixedly connected with the second rapid self-closing connector. The alcohol-based liquid fuel special barrel and the fuel transition box are connected through the connecting pipe, the whole fuel filling process is closed, fuel cannot splash, filling safety is guaranteed, and mounting and dismounting are convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of fuel refueling technology, specifically a closed fuel refueling system. Background Technology

[0002] Some heating devices provide warmth by using electricity or burning fuel. For some devices that use fuel to provide warmth, it is necessary to refuel after the fuel has been used up. This can usually be divided into manual refueling and mechanical refueling. For household use, manual refueling is usually the preferred method.

[0003] However, existing technologies can easily cause fuel spillage during manual refueling, leading to fuel waste and the spilled fuel posing a certain flammability hazard. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a closed-loop refueling system to solve the problems mentioned in the background. This invention features a novel structure, connecting a dedicated alcohol-based liquid fuel container and a fuel transfer tank via a connecting pipe. The entire refueling process is completely enclosed, preventing fuel splashing and ensuring refueling safety. It is also easy to install and disassemble.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a closed-loop refueling system includes a dedicated alcohol-based liquid fuel container, which is an elliptical box. A first reverse-thread connector is provided on one side of the top of the dedicated alcohol-based liquid fuel container. A fuel transfer box is provided on one side of the dedicated alcohol-based liquid fuel container, which is semi-circular. A first quick-closing connector is provided on one side of the fuel transfer box. A connecting pipe is provided between the dedicated alcohol-based liquid fuel container and the fuel transfer box, and the dedicated alcohol-based liquid fuel container and the fuel transfer box are connected through the connecting pipe, which is a flexible hose.

[0006] Furthermore, a second reverse thread connector is fixed to one end of the connecting pipe, and the second reverse thread connector is threadedly fixedly connected to the first reverse thread connector.

[0007] Furthermore, a second quick-closing connector is fixed to the other end of the connecting pipe, and the first quick-closing connector is fixedly connected to the second quick-closing connector.

[0008] Furthermore, a lifting ring is movably installed on the outer surface of the top center position of the alcohol-based liquid fuel special container.

[0009] Furthermore, a breather valve is installed on the side of the top of the alcohol-based liquid fuel container away from the first reverse thread connector.

[0010] Furthermore, the alcohol-based liquid fuel container is equipped with an oil and gas recovery connector on one side of the breather valve, and both the oil and gas recovery connector and the breather valve are connected to the interior of the alcohol-based liquid fuel container.

[0011] Furthermore, a handwheel is rotatably mounted on the top of the first reverse thread connector via a valve stem, and the handwheel is connected to a valve plate inside the first reverse thread connector.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model allows for convenient handling, carrying, and relocation of alcohol-based liquid fuel containers via a lifting ring.

[0014] 2. This utility model uses a breather valve to maintain stable pressure inside the alcohol-based liquid fuel tank and uses an oil and gas recovery connector to recover the remaining fuel inside the alcohol-based liquid fuel tank after filling.

[0015] 3. Compared with the prior art, this utility model connects the alcohol-based liquid fuel tank and the fuel transfer box through a connecting pipe, which is completely closed during the fuel filling process, so that the fuel will not splash, ensuring the safety of the filling process, and is convenient to install and disassemble. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the composition of a closed refueling system according to the present invention;

[0017] Figure 2 This is a schematic diagram showing the connection between the alcohol-based liquid fuel tank and the fuel transfer box of a closed refueling system according to this utility model;

[0018] Figure 3 This is a schematic diagram of the top structure of a special tank for alcohol-based liquid fuel in a closed refueling system according to this utility model;

[0019] Figure 4 This is a schematic diagram of the fuel transfer tank and connecting pipe structure of a closed refueling system according to this utility model.

[0020] In the diagram: 1. Alcohol-based liquid fuel container; 11. Lifting ring; 12. Breather valve; 13. Oil and gas recovery connector; 14. First reverse thread connector; 15. Handwheel; 2. Fuel transfer box; 21. First quick self-closing connector; 3. Connecting pipe; 31. Second reverse thread connector; 32. Second quick self-closing connector. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 4This utility model provides a technical solution: a closed refueling system, including a dedicated alcohol-based liquid fuel tank 1, which is an elliptical box. A first reverse-thread connector 14 is provided on one side of the top of the dedicated alcohol-based liquid fuel tank 1. A fuel transfer box 2 is provided on one side of the dedicated alcohol-based liquid fuel tank 1, which is semi-circular. A first quick-closing connector 21 is provided on one side of the fuel transfer box 2. A connecting pipe 3 is provided between the dedicated alcohol-based liquid fuel tank 1 and the fuel transfer box 2, and the dedicated alcohol-based liquid fuel tank 1 and the fuel transfer box 2 are connected through the connecting pipe 3. The connecting pipe 3 is a flexible hose. When refueling the fuel transfer box 2, the second reverse-thread connector 31 and the second quick-closing connector 32 at both ends of the fuel pipe are fixedly connected to the first reverse-thread connector 14 of the dedicated alcohol-based liquid fuel tank 1 and the first quick-closing connector 21 of the fuel transfer box 2, respectively. Fuel is then added into the fuel transfer box 2. The entire refueling process is closed, preventing fuel splashing and ensuring refueling safety. Installation and disassembly are convenient.

[0023] In this embodiment, a second reverse thread connector 31 is fixed to one end of the connecting pipe 3. The second reverse thread connector 31 is threadedly fixed to the first reverse thread connector 14. A second quick self-closing connector 32 is fixed to the other end of the connecting pipe 3. The first quick self-closing connector 21 is fixedly connected to the second quick self-closing connector 32. A handwheel 15 is rotatably mounted on the top of the first reverse thread connector 14 via a valve stem. The handwheel 15 is connected to the valve plate inside the first reverse thread connector 14. The opening and closing of the first reverse thread connector 14 can be controlled by the handwheel 15. The first reverse thread connector 14 is connected to the second reverse thread connector 31. The first quick self-closing connector 21 is connected to the second quick self-closing connector 32, so as to realize the connection between the alcohol-based liquid fuel special tank 1 and the fuel transfer tank 2 through the connecting pipe 3.

[0024] In this embodiment, a lifting ring 11 is movably installed on the outer surface of the top center position of the alcohol-based liquid fuel special container 1, which can be conveniently carried and moved by the lifting ring 11.

[0025] In this embodiment, a breather valve 12 is installed on the side of the top of the alcohol-based liquid fuel tank 1 away from the first reverse thread connector 14. An oil and gas recovery connector 13 is provided on the side of the alcohol-based liquid fuel tank 1 located at the breather valve 12. Both the oil and gas recovery connector 13 and the breather valve 12 are connected to the inside of the alcohol-based liquid fuel tank 1. The breather valve 12 can also be a pressure relief valve. The pressure inside the alcohol-based liquid fuel tank 1 is kept stable through the breather valve 12. The remaining fuel inside the alcohol-based liquid fuel tank 1 after filling is recovered through the oil and gas recovery connector 13.

[0026] When refueling is required for the fuel transfer tank 2, the second reverse thread connector 31 and the second quick self-closing connector 32 at both ends of the fuel pipe are fixedly connected to the first reverse thread connector 14 of the alcohol-based liquid fuel special tank 1 and the first quick self-closing connector 21 of the fuel transfer tank 2, respectively. Then, fuel is added into the fuel transfer tank 2. The entire process of refueling is closed, and the fuel will not splash, ensuring the safety of refueling. Installation and disassembly are convenient.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A closed refuelling system comprising an alcohol-based liquid fuel specific drum (1), characterised in that: The alcohol-based liquid fuel container (1) is an elliptical box. A first reverse thread connector (14) is provided on one side of the top of the alcohol-based liquid fuel container (1). A fuel transfer box (2) is provided on one side of the alcohol-based liquid fuel container (1). The fuel transfer box (2) is semi-circular. A first quick self-closing connector (21) is provided on one side of the fuel transfer box (2). A connecting pipe (3) is provided between the alcohol-based liquid fuel container (1) and the fuel transfer box (2). The alcohol-based liquid fuel container (1) and the fuel transfer box (2) are connected through the connecting pipe (3). The connecting pipe (3) is a flexible hose.

2. The closed-loop refueling system according to claim 1, characterized in that: One end of the connecting pipe (3) is fixed with a second reverse thread connector (31), and the second reverse thread connector (31) is threadedly fixedly connected to the first reverse thread connector (14).

3. A closed fill fuel system as defined in claim 2, wherein: The other end of the connecting pipe (3) is fixed with a second quick self-closing connector (32), and the first quick self-closing connector (21) is fixedly connected to the second quick self-closing connector (32).

4. A closed fill fuel system as defined in claim 1, wherein: A lifting ring (11) is movably installed on the outer surface of the top middle position of the alcohol-based liquid fuel container (1).

5. A closed fill fuel system as claimed in claim 4, wherein: A breather valve (12) is installed on the top side of the alcohol-based liquid fuel tank (1) away from the first reverse thread connector (14).

6. A closed fill fuel system as claimed in claim 5, wherein: The alcohol-based liquid fuel container (1) is provided with an oil and gas recovery connector (13) on one side of the breather valve (12), and both the oil and gas recovery connector (13) and the breather valve (12) are connected to the inside of the alcohol-based liquid fuel container (1).

7. A closed fill fuel system as claimed in claim 6, wherein: A handwheel (15) is rotatably mounted on the top of the first reverse thread connector (14) via a valve stem, and the handwheel (15) is connected to the valve plate inside the first reverse thread connector (14).

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