Alcohol-based liquid fuel filling gun adapter

Abstract

The utility model belongs to the technical field of alcohol-based liquid fuel filling, and particularly relates to an alcohol-based liquid fuel filling gun adapter which comprises an outer shell, the outer shell is of a hollow cylinder structure, one end of the outer shell is provided with a threaded sleeve, the other end of the outer shell is provided with a sealing cover with a through hole, and an elastic sealing assembly is arranged in the outer shell and comprises a connecting shaft. One end of the connecting shaft is provided with a blocking sliding block matched with the through hole, the other end of the connecting shaft is provided with a mounting base, the connecting shaft is sleeved with a reset spring, and the mounting base is clamped on the inner side wall of the outer shell. When the adapter is installed, the plugging sliding block and a plug in the angle valve extrude each other, the plugging sliding block moves towards the direction of the installation base, so that the through hole is communicated, filling is facilitated, the adapter is taken down after filling is completed, and under the elastic force action of the reset spring, the plugging sliding block can plug the plug in the angle valve to close the through hole. And therefore, the fuel oil is prevented from leaking from the through hole, the environment is prevented from being polluted, and meanwhile, the fuel oil filling safety is also improved.

Description

Technical Field

[0001] This utility model relates to the field of alcohol-based liquid fuel filling technology, and in particular to an alcohol-based liquid fuel filling gun adapter. Background Technology

[0002] Alcohol-based fuel oil is a new scientific and technological achievement in my country. It is a flammable liquid produced by fertilizer plants that produce nitrogen and ammonia through a state-mandated methanol-blending equipment.

[0003] Environmentally friendly bio-ethanol oil is pressureless, non-explosive, non-toxic, and has an auto-ignition point of 385℃, making it safe and reliable to use. Even if it leaks and catches fire due to improper use, it can be extinguished with water, unlike diesel or liquefied petroleum gas (LPG) fires which can cause significant damage. Furthermore, accidentally leaked environmentally friendly oil is water-soluble or dries naturally, unlike diesel or LPG which pollute the environment or pose safety hazards. Environmentally friendly bio-ethanol oil is a renewable energy source. A national technology utilizes surplus electricity to generate easily stored methanol liquid by adding CO2 and hydrogen. The main component of this alcohol-based fuel is methanol. It is smokeless, odorless, pollution-free, residue-free, and leaves no black residue on pots, making it clean and hygienic. The carbon monoxide produced during combustion is lower than that of diesel and LPG, which is beneficial to the health of kitchen staff and the cleanliness of the kitchen environment.

[0004] Domestic alcohol-based fuel oil is generally stored and transported in steel cylinders. These cylinders are similar to traditional liquefied petroleum gas (LPG) tanks, with a quick-connect angle valve on top. A fuel supply line is connected to this quick-connect angle valve, and opening the valve allows fuel to be drawn into the supply line for combustion. Currently, the connector to the quick-connect angle valve does not have a check valve function. After filling, when removing the nozzle, the adapter, i.e., the filling gun, needs to be removed from the angle valve. Since alcohol-based fuel is filled into the steel cylinder under high pressure, fuel oil may leak during the process of removing the filling gun, which could cause environmental pollution and pose a significant safety hazard.

[0005] To address the aforementioned issues, this utility model document proposes an adapter for an alcohol-based liquid fuel filling gun. Utility Model Content

[0006] This invention provides an alcohol-based liquid fuel filling gun adapter, which effectively avoids fuel oil leakage and improves the safety of fuel oil filling.

[0007] This utility model provides the following technical solution:

[0008] An alcohol-based liquid fuel filling gun adapter includes a housing, which is a hollow cylindrical structure with a threaded sleeve at one end and a cap with a through hole at the other end. An elastic sealing assembly is provided inside the housing, which includes a connecting shaft. One end of the connecting shaft is provided with a sealing slider that mates with the through hole, and the other end is slidably provided with a mounting seat. A return spring is sleeved on the connecting shaft, with one end of the return spring abutting against the sealing slider and the other end abutting against the mounting seat. The mounting seat is engaged with the inner side wall of the housing.

[0009] Furthermore, the central axis of the outer shell, the central axis of the threaded sleeve, the central axis of the through hole, the central axis of the sealing slider, and the central axis of the mounting base are coaxially arranged, and the outer shell and the threaded sleeve are integrally formed.

[0010] Furthermore, the mounting base includes a positioning sleeve, which is snapped into the inner wall of the outer shell. A guide sleeve is provided inside the positioning sleeve, and a connecting block is provided between the positioning sleeve and the guide sleeve. The connecting shaft is slidably disposed inside the guide sleeve.

[0011] Furthermore, multiple connecting blocks are evenly arranged between the positioning sleeve and the guide sleeve, with gaps between adjacent connecting blocks.

[0012] Furthermore, an annular groove is provided at the connection between the cover and the outer shell, and a sealing gasket is inserted into the annular groove.

[0013] Furthermore, the sealing slider has a teardrop-shaped structure, with one end having a smaller diameter that matches the through hole, and the diameter of that end being smaller than the diameter of the through hole, while the diameter of the other end is larger than the diameter of the through hole.

[0014] Furthermore, a positioning element is provided on the side of the positioning sleeve away from the blocking slider, and the positioning element is a "C"-shaped elastic retaining ring.

[0015] In this invention, the mounting base is secured within the outer casing, and the return spring presses the sealing slider to close the through hole. After the adapter is installed, the sealing slider and the plug inside the angle valve on the cylinder press against each other, causing the sealing slider to move towards the mounting base. Simultaneously, the return spring is compressed, and the sealing slider separates from the through hole, allowing the through hole to open and facilitating filling. After filling is complete, the adapter is removed, and under the elastic force of the return spring, the sealing slider promptly closes the through hole, thereby preventing fuel oil from leaking from the through hole, avoiding environmental pollution, and improving the safety of fuel oil filling. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of an alcohol-based liquid fuel filling gun adapter provided in an embodiment of this utility model;

[0017] Figure 2This is a three-dimensional structural diagram of an alcohol-based liquid fuel filling gun adapter provided in an embodiment of the present invention.

[0018] Figure 3 This is a cross-sectional internal structure diagram of an alcohol-based liquid fuel filling gun adapter provided in an embodiment of the present invention.

[0019] Figure 4 A three-dimensional structural schematic diagram of an elastic sealing component in an alcohol-based liquid fuel filling gun adapter provided for an embodiment of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the elastic sealing component in an alcohol-based liquid fuel filling gun adapter, provided as an embodiment of the present invention.

[0021] Figure label:

[0022] 1. Outer shell; 2. Threaded sleeve; 3. Cover; 4. Elastic sealing assembly; 401. Connecting shaft; 402. Sealing slider; 403. Mounting base; 40301. Positioning sleeve; 40302. Guide sleeve; 40303. Connecting block; 404. Return spring; 5. Annular groove; 6. Sealing gasket; 7. Elastic retaining ring. Detailed Implementation

[0023] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0024] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element 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 embodiments of this utility model.

[0025] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0026] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0027] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0028] Example:

[0029] Reference Figures 1 to 5 As shown, an alcohol-based liquid fuel filling gun adapter includes a housing 1, which is a hollow cylindrical structure. One end of the housing 1 is provided with a threaded sleeve 2, and the other end is provided with a cap 3 with a through hole. An elastic sealing assembly 4 is provided inside the housing 1. The elastic sealing assembly 4 includes a connecting shaft 401. One end of the connecting shaft 401 is provided with a sealing slider 402 that cooperates with the through hole, and the other end is slidably provided with a mounting seat 403. A return spring 404 is sleeved on the connecting shaft 401. One end of the return spring 404 abuts against the sealing slider 402, and the other end abuts against the mounting seat 403. The mounting seat 403 is locked in the inner wall of the housing 1.

[0030] Under the elastic force of the return spring 404, the sealing slider 402 abuts against the through hole of the cap 3, sealing the through hole. When filling the alcohol-based liquid fuel oil, the adapter is connected to the angle valve on the cylinder, causing the sealing slider 402 and the plug in the angle valve to press against each other, causing the sealing slider 402 to slide towards the mounting base 403, thereby separating the sealing slider 402 from the through hole, opening the through hole for easy filling. After filling, when the adapter is removed, the sealing slider 402 abuts against the through hole under the elastic force of the return spring 404, sealing the through hole, thus preventing fuel oil from leaking from the through hole, improving filling safety, and avoiding environmental pollution. Mounting seat 403 is snapped into the inner wall of housing 1, so that mounting seat 403 can position return spring 404 and ensure that the elastic force of return spring 404 can act on blocking slider 402. Connecting shaft 401 is slidably set with mounting seat 403, so that when blocking slider 402 is squeezed, connecting shaft 401 slides towards mounting seat 403, and at the same time can compress return spring 404.

[0031] The central axes of the outer casing 1, the threaded sleeve 2, the through hole, the sealing slider 402, and the mounting base 403 are coaxially arranged, and the outer casing 1 and the threaded sleeve 2 are integrally formed. This coaxial arrangement ensures that the sealing slider 402 can accurately mate with the through hole, sealing it and guaranteeing the sealing performance of the sealing slider 402 to prevent leakage. The integral forming facilitates manufacturing, improves overall structural strength, and also prevents fuel oil leakage due to incomplete sealing during connection.

[0032] Mounting base 403 includes positioning sleeve 40301, which is snapped into the inner side wall of housing 1. Positioning sleeve 40301 is provided with guide sleeve 40302. A connecting block 40303 is provided between positioning sleeve 40301 and guide sleeve 40302. Connecting shaft 401 is slidably disposed in guide sleeve 40302.

[0033] The guide sleeve 40302 ensures that the mounting base 403 remains unchanged inside the outer shell 1, guaranteeing that the elastic force of the reset spring 404 can act on the sealing slider 402, so that the sealing slider 402 can be closed by the elastic force.

[0034] Multiple connecting blocks 40303 are evenly arranged between the positioning sleeve 40301 and the guide sleeve 40302, with gaps between adjacent connecting blocks 40303.

[0035] The connecting block 40303 connects and fixes the guide sleeve 40302 to the positioning sleeve 40301, thus fixing the position of the guide sleeve 40302. On the other hand, the gap between the connecting blocks 40303 allows fuel oil to pass through.

[0036] Multiple connecting blocks 40303 are evenly arranged to ensure uniform strength of the connection structure between the positioning sleeve 40301 and the guide sleeve 40302. This prevents uneven force from causing positional changes, which could lead to unstable movement of the sealing slider 402, affecting the fit between the sealing slider 402 and the through hole, and causing fuel oil leakage.

[0037] An annular groove 5 is provided at the connection between the cover 3 and the outer shell 1, and a sealing gasket 6 is inserted in the annular groove 5.

[0038] The sealing gasket 6 improves the sealing effect between the adapter and the angle valve during use, preventing fuel oil from leaking from the outer wall of the adapter and ensuring that fuel oil can enter the through hole.

[0039] The sealing slider 402 has a teardrop-shaped structure. Its smaller diameter end matches the through hole, and the diameter of this end is smaller than the diameter of the through hole. The diameter of the other end is larger than the diameter of the through hole.

[0040] This allows the smaller diameter end of the sealing slider 402 to pass through the through hole, enabling it to contact the plug inside the angle valve during use. The resulting pressure opens the through hole. Furthermore, the insertion of the sealing slider 402 into the through hole allows for better contact with the inner wall of the through hole, resulting in a better seal.

[0041] The positioning sleeve 40301 has a positioning element on the side away from the blocking slider 402. The positioning element is a C-shaped elastic retaining ring 7.

[0042] The elastic retaining ring 7 presses tightly against the inner wall of the outer shell 1 under its own elastic force. The positioning sleeve 40301 is positioned by the "C"-shaped elastic retaining ring 7, so that the positioning sleeve 40301 is stuck in the inner wall of the outer shell 1.

[0043] The reset spring 404 is sleeved on the connecting shaft 401, and the guide sleeve 40302 of the mounting base 403 is sleeved on the connecting shaft 401 to form an elastic sealing assembly 4. The elastic sealing assembly 4 is placed inside the outer shell 1, and then the elastic retaining ring 7 is placed inside the outer shell 1 to abut against the positioning sleeve 40301 to position the positioning sleeve 40301, thus completing the assembly of the adapter. In use, the threaded sleeve 2 is connected to the filling gun, and one end of the cap 3 is inserted into the angle valve of the cylinder. The plug inside the angle valve abuts against the sealing slider 402 and they press against each other, causing the sealing slider 402 to move in the direction of the mounting seat 403. This creates a gap between the sealing slider 402 and the through hole, allowing fuel oil to pass through for filling. After filling, the adapter is removed from the angle valve. During this process, the sealing slider 402 separates from the plug inside the angle valve. The sealing slider 402 returns to its initial position under the elastic force of the return spring 404, promptly sealing the through hole and preventing fuel oil leakage. This improves the safety of fuel oil filling and avoids fuel oil pollution of the environment.

[0044] In actual use, a positioning hole is provided on the outer side wall of the outer casing 1. Since the inner side wall of the angle valve is equipped with a plunger, the adapter can be easily snapped into the inside of the angle valve by cooperating with the plunger through the positioning hole.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An adapter for an alcohol-based liquid fuel filling gun, characterized in that, The device includes an outer shell, which is a hollow cylindrical structure with a threaded sleeve at one end and a cap with a through hole at the other end. An elastic sealing assembly is provided inside the outer shell. The elastic sealing assembly includes a connecting shaft. One end of the connecting shaft is provided with a sealing slider that mates with the through hole, and the other end is slidably provided with a mounting seat. A return spring is sleeved on the connecting shaft. One end of the return spring abuts against the sealing slider, and the other end abuts against the mounting seat. The mounting seat is engaged with the inner side wall of the outer shell.

2. The alcohol-based liquid fuel filling gun adapter according to claim 1, characterized in that, The central axis of the outer shell, the central axis of the threaded sleeve, the central axis of the through hole, the central axis of the sealing slider, and the central axis of the mounting base are coaxially arranged, and the outer shell and the threaded sleeve are integrally formed.

3. The alcohol-based liquid fuel filling gun adapter according to claim 1, characterized in that, The mounting base includes a positioning sleeve, which is snapped into the inner wall of the outer shell. A guide sleeve is provided inside the positioning sleeve, and a connecting block is provided between the positioning sleeve and the guide sleeve. The connecting shaft is slidably disposed inside the guide sleeve.

4. The alcohol-based liquid fuel filling gun adapter according to claim 3, characterized in that, Multiple connecting blocks are evenly arranged between the positioning sleeve and the guide sleeve, with gaps between adjacent connecting blocks.

5. The alcohol-based liquid fuel filling gun adapter according to claim 1, characterized in that, The connection between the cover and the outer shell is provided with an annular groove, and a sealing gasket is inserted into the annular groove.

6. The alcohol-based liquid fuel filling gun adapter according to claim 1, characterized in that, The sealing slider has a teardrop-shaped structure, with one end having a smaller diameter that matches the through hole, and the diameter of that end being smaller than the diameter of the through hole, while the diameter of the other end is larger than the diameter of the through hole.

7. The alcohol-based liquid fuel filling gun adapter according to claim 3, characterized in that, The positioning sleeve has a positioning element on the side away from the blocking slider, and the positioning element is a "C"-shaped elastic retaining ring.

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