A portable liquid fuel tank and its combined structure that can be docked horizontally and vertically.

Abstract

This invention relates to a portable liquid fuel tank and its assembly structure that can be horizontally and vertically joined. The tanks in this invention have a small capacity, making them easy to carry. The tanks can be spliced ​​together for easy stacking and transport. The assembly structure includes a tray with user-selectable specifications. The tanks are arranged on the tray and then connected in a specific way to separate an output tank and a spare tank. The output tank is directly connected to the stove, and the spare tank replenishes fuel to the output tank. When the fuel in the spare tank is depleted, the spare tank is replaced, and the output tank continues to supply fuel. When the output tank is depleted, a new output tank is connected to the stove, and the original output tank is replaced and put into standby. This ensures that the tank is fully loaded after each replacement, avoiding the problem in existing technologies where the tank cannot be fully loaded during subsequent refueling.

Description

Technical Field

[0001] This invention belongs to the technical field of liquid fuel containers, and particularly relates to a portable liquid fuel tank and its combined structure that can be horizontally and vertically docked. Background Technology

[0002] Liquid fuels, especially methanol fuel, are highly efficient combustors similar to liquefied petroleum gas (LPG) and coal gas. They can be used in restaurant kitchens or household kitchens as a highly efficient and clean fuel to replace LPG and coal gas.

[0003] Some existing methanol fuel storage tanks can be directly connected to the stove to provide fuel to the stove. However, when considering the functionality of continuous use, these tanks all use large-capacity tanks as storage tanks to ensure that a single filling provides a longer service life and reduces the number of fillings. However, such tanks are not convenient to transport and are not convenient for residents to use due to their large size.

[0004] Another type, such as Chinese utility model patent CN 212580413U, uses a combined tank with a secondary tank below the main tank. The main tank and the secondary tank are connected, and the secondary tank is directly connected to the stove body. During use, only the main tank needs to be replaced for quick refueling. However, this method is still limited by the capacity of the secondary tank. If the capacity of the secondary tank is too large, it will make it inconvenient to move the main tank. If the capacity of the secondary tank is too small, it will increase the number of refuelings. Therefore, it is necessary to set a balanced volume ratio between the main tank and the secondary tank, which is not convenient. At the same time, it only refuels when the fuel in the secondary tank is about to run out. From the first refueling, it cannot be guaranteed that the secondary tank and the main tank are filled with fuel at the same time, which reduces the subsequent fuel storage capacity. Summary of the Invention

[0005] In view of the above situation, the purpose of the present invention is to provide a portable liquid fuel tank and its combined structure that can be connected horizontally and vertically, which solves the problems of existing tanks being too large, causing transportation trouble, and not being able to guarantee that the tank is fully loaded during subsequent use and refueling, thus indirectly reducing the amount of fuel stored.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] Summary of the Invention: A portable liquid fuel tank that can be horizontally and vertically joined together, comprising a tank body, characterized in that the side of the tank body is surrounded by a skirt for vertical stacking and joining of the tank bodies, the skirt has a through hole located below the bottom of the tank body, multiple handles are fixedly connected to the tank body and gathered below the top end face of the tank body, the sides of the multiple handles are provided with two one-way liquid injection ports provided on the tank body, the two one-way liquid injection ports are provided with an outlet provided on the tank body, the outlet is connected to a connecting pipe placed inside the tank body, and multiple mating grooves are provided on the top end face of the tank body, the multiple mating grooves corresponding to and engaging with a boss provided on the bottom end face of the tank body;

[0008] The present invention also provides a combined structure of a liquid fuel tank with the above-mentioned features, including a tray supporting the tank body. The tray is characterized by having connecting brackets arranged at intervals that mate with the skirt of the tank body. The tank body is placed on the tray via the connecting brackets. Each connecting bracket has a through groove that mates with a through hole. The boss of the upper tank body and the mating groove of the lower tank body mate with each other. Tanks in the same layer are sequentially connected, and vertically adjacent tanks are sequentially connected after the tanks in the same layer are connected. The tank body is divided into an output tank and a spare tank. The output tank is directly connected to the stove body, and the spare tank replenishes fuel for the output tank.

[0009] The beneficial effects of this invention are:

[0010] 1. The can of the present invention has a small capacity, which makes it easy to carry. At the same time, the cans can be spliced ​​together to facilitate stacking and transportation.

[0011] 2. This invention features a tray with user-selectable specifications. The tanks are arranged on the tray and then connected in a specific manner, separating an output tank and a spare tank. The output tank is directly connected to the stove body, while the spare tank replenishes fuel to the output tank. When the fuel in the spare tank is depleted, the spare tank is replaced, and the output tank continues to supply fuel. When the output tank is depleted, a newly installed output tank is connected to the stove body, and the original output tank is replaced and put into standby. This ensures that the tank is fully loaded after each replacement, avoiding the problem in the prior art where the tank cannot be fully loaded during subsequent refueling. Attached Figure Description

[0012] Figure 1 The fuel tank assembly structure of the present invention is shown in view. Figure 1 .

[0013] Figure 2 The fuel tank assembly structure of the present invention is shown in view. Figure 2 .

[0014] Figure 3 This is a view of the fuel tank structure of the present invention. Figure 1 .

[0015] Figure 4 This is a view of the fuel tank structure of the present invention. Figure 2 .

[0016] Figure 5 This is a view of the fuel tank structure of the present invention. Figure 3 .

[0017] In the diagram, 1. Tank body; 2. Skirt; 3. Handle; 4. One-way filling port; 5. Outlet; 6. Connecting pipe; 7. One-way check valve; 8. Safety relief valve; 9. Fitting groove; 10. Boss; 11. Through hole; 12. Tray; 13. Connecting bracket; 14. Through groove; 15. First guide pipe; 16. Second guide pipe; 17. Third guide pipe; 18. Sealing cap. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-5 The specific embodiments of the present invention will be described in further detail below.

[0019] Example 1, in conjunction with Appendix Figure 3-5A portable liquid fuel tank that can be horizontally and vertically joined includes a tank body 1, which is made of thin steel plate. In this embodiment, the tank body 1 has different standard specifications, with a capacity of 30L. Users can choose the specifications of the tank body 1 according to their actual needs. The side of the tank body 1 is provided with a skirt 2 for vertical stacking and joining of the tank bodies 1. The skirt 2 can be integrally made with the tank body 1 or welded to the outside of the tank body 1. When vertically stacked, the skirt 2 of the upper tank body 1 will cover the lower tank body 1, thereby ensuring the stability of the vertical stacking arrangement of the tank bodies 1. Pre-set, to further enhance the vertical stacking between the tank bodies 1 To prevent the stacked cans 1 from collapsing during transportation due to shaking, multiple mating grooves 9 are provided on the top end face of the can 1. These grooves 9 correspond to and engage with protrusions 10 on the bottom end face of the can 1. This ensures that when the cans 1 are stacked vertically, the protrusions 10 of the upper can 1 will be placed within the mating grooves 9 of the lower can 1, thus strengthening the restriction on lateral displacement of the cans 1. A handle 3 is fixedly connected to the can 1 and is folded down below the top end face of the can 1. In this embodiment, three handles 3 are provided for easy one-handed or two-handed gripping. After the handles 3 are installed on the can 1, the handles... Handle 3 is positioned below or flush with the top end face of tank 1 to ensure that it does not interfere with the vertical stacking of tank 1. Two one-way injection ports 4 are located on the side of the handle 3, and an outlet 5 is located between the two injection ports 4. Ideally, the two injection ports 4 and the outlet 5 are positioned in the same manner as the handle 3, with their ends folded down below the top end face of tank 1. This ensures that other connecting parts installed on the injection ports 4 and the outlet 5 are located below the top end face, facilitating the vertical stacking of tank 1. Two one-way injection ports 4 are each connected to a one-way check valve 7, ensuring that fuel can only enter the injection tank 1. The fuel entering the tank 1 will be restricted by the one-way check valve 7 to prevent fuel backflow. Pre-set, each of the one-way injection ports 4 is connected to a safety pressure relief valve 8 to provide pressure equalization protection when the pressure inside the tank 1 is too high. Pre-set, the outlet 5 is connected to a connecting pipe 6 placed inside the tank 1. The connecting pipe 6 is a flexible hose with sufficient length to ensure that the end is placed flat on the inner bottom end face of the tank 1. Optionally, a filter screen is connected to the end of the connecting pipe 6 to prevent debris from entering the stove body through the filter screen and clogging the nozzle.

[0020] Example 2, based on Example 1, combined with Appendix Figure 1-3A combined structure of a liquid fuel tank with the technical features of Embodiment 1 includes a tray 12 supporting a tank body 1. Connecting brackets 13, which mate with the skirt 2 on the tank body 1, are arranged at intervals on the tray 12. This allows the tank bodies 1 to be connected via the connecting brackets 13 when placed on the tray. Pre-determined, the number of horizontally connected tank bodies 1 and the number of vertically stacked layers are determined beforehand. After all tank bodies 1 are placed and stacked, the tank body 1 that communicates with the stove is designated as the output tank. Subsequently, all tank bodies 1 placed in the same column as this output tank are vertically connected sequentially. Specifically… The two adjacent tanks 1 in the same column as the output pipe of this tank 1 are connected sequentially through the first conduit 15. The first conduit 15 connects the outlet 5 of one tank 1 to the one-way inlet 4 of the other tank 1. Then, except for the output tank of this tank 1, the tanks 1 located on the same layer are connected sequentially. The two vertically adjacent tanks 1 are connected sequentially. Specifically, the tanks 1 placed on the same layer are connected by the second conduit 16, which connects two adjacent tanks 1 through the one-way inlet 4 and the outlet 5. That is, after placement, the tanks 1 on the same layer are connected sequentially through the second conduit 16. During operation, two adjacent tanks 1 are connected via the outlet 5 on one tank 1 to the one-way inlet 4 on the other tank 1. Pre-configured, to facilitate connection between the bottommost tanks 1, the connecting platform 13 is provided with a through groove 14 that mates with the through hole 11, allowing the second conduit 16 to pass through the through groove 14 from below the tank 1 for connection. Pre-configured, after connecting the tanks 1 at the same level, vertical connection between the tanks 1 is required. Specifically, two vertically adjacent tanks 1 are connected via a third conduit 17, connecting any remaining unconnected outlet 5 on any level. The remaining unconnected one-way injection port 4 of the adjacent layer is connected to form a whole called the spare tank. Then the spare tank is connected to the output tank. By default, except for the one-way injection port 4 on the tank 1 directly connected to the output tank, the one-way injection ports 4 on the other tanks 1, including the spare tank and the output tank, are sealed with sealing caps 18. When the stove draws fuel from the tank 1, it can ensure that gas enters the tank 1 from the one-way injection port 4 to replenish the pressure, so that the fuel flows from the spare tank into the output tank, and then enters the stove for combustion.

[0021] After this connection method is used up, the fuel in the spare tank will be used up first. Then, all tanks 1 in the spare tank can be removed and replaced. The tanks 1 in this invention are easy to carry and replace. Then, the one-way liquid inlet 4 on the output tank will serve as the pressure port for atmospheric air to enter the tank 1, ensuring that the fuel in all tanks 1 in the output tank can be used by the stove. After the spare tank is replaced and placed, the tanks 1 need to be connected again. When connecting the replaced tanks 1, it is still necessary to leave one set of tanks 1 in advance for vertical connection to form a new output tank. Then, the remaining tanks 1 are connected to form the output tank. The spare tank is then connected to the output tank. After the fuel in the original output tank is used up, the valve on the pipe connecting the new output tank and the stove body is opened, and the stove body can continue to be used. This completely avoids the situation where the user cannot immediately restore the fire when the fire is suddenly out. Then, all the tanks 1 in the part that were used as output tanks in the first time are replaced and placed on the tray 12 for standby. The combination structure of the present invention allows users to make large-scale selections. Whether it is the capacity or the number of tanks 1, the tanks 1 themselves are also easier to carry and transport. At the same time, its combination structure can both increase the fuel storage capacity and ensure rapid fuel replenishment.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined structure for a liquid fuel tank, comprising a tank body (1) and a tray (12) supporting the tank body (1), characterized in that, The tank body (1) is surrounded by a skirt (2) for vertical stacking and docking of the tank body (1). The skirt (2) has a through hole (11) located below the bottom of the tank body (1). The tank body (1) is fixedly connected to a plurality of handles (3) that are gathered below the top end face of the tank body (1). The sides of the plurality of handles (3) are provided with two one-way liquid inlets (4) on the tank body (1). Between the two one-way liquid inlets (4) is a liquid outlet (5) on the tank body (1). The liquid outlet (5) is connected to a connecting pipe (6) placed inside the tank body (1). The top end face of the tank body (1) is provided with a plurality of mating grooves (9). The plurality of mating grooves (9) are correspondingly mated with the boss (10) provided on the bottom end face of the tank body (1). The tray (12) is provided with connecting brackets (13) arranged at intervals to cooperate with the skirt (2) on the tank (1). The tank (1) is placed on the tray (12) through the connecting brackets (13). The connecting brackets (13) are provided with through grooves (14) that cooperate with the through holes (11). The boss (10) of the upper tank (1) and the mating groove (9) of the lower tank (1) cooperate with each other. The tanks (1) in the same layer are connected in sequence. After the tanks (1) in the same layer are connected, the vertically adjacent tanks (1) are connected in sequence. The tank (1) is divided into an output tank and a spare tank. The output tank is directly connected to the stove body, and the spare tank is used to replenish fuel for the output tank.

2. The combined structure of a liquid fuel tank according to claim 1, characterized in that, Two one-way injection ports (4) are respectively connected to one-way check valves (7).

3. The combined structure of a liquid fuel tank according to claim 1, characterized in that, A safety relief valve (8) is connected to any of the one-way injection ports (4).

4. The combined structure of a liquid fuel tank according to claim 1, characterized in that, In the vertically stacked tank (1) structure where a certain tank (1) connected to the stove is located, adjacent tanks (1) are vertically connected in sequence through the first conduit (15).

5. The combined structure of a liquid fuel tank according to claim 4, characterized in that, Except for the row of tanks (1) connected to the stove body, the other tanks (1) placed on the same layer are connected by a second conduit (16) to connect two adjacent tanks (1) through a one-way injection port (4) and an outlet port (5).

6. The combined structure of a liquid fuel tank according to claim 5, characterized in that, The tank (1) is a combined structure after being connected on the same layer. The tanks (1) of adjacent layers are connected through a third conduit (17).

7. The combined structure of a liquid fuel tank according to claim 6, characterized in that, Except for the one-way injection port (4) on the tank (1) furthest from the stove body, all the one-way injection ports (4) on the other tanks (1) are sealed with sealing caps (18).

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