Filling gun with positioning and deviation preventing functions

Abstract

The utility model discloses a filling gun with positioning and deviation preventing functions, and relates to the technical field of filling guns, the filling gun comprises a gun body, one end of the gun body is communicated and fixed with a gun nozzle, the outer side of the upper end of the gun nozzle is sleeved with a sealing pipe, a sealing cavity is formed between the sealing pipe and the surface of the gun nozzle, and one side of the sealing pipe is communicated and fixed with a micro air pump. When the one-way valve core in the gun nozzle and the one-way valve core of the vehicle-mounted gun head seat are mutually ejected, the control button is pressed to start the micro air pump, the micro air pump can inflate the sealing cavity and transmit air to the annular air bags through the air conveying pipe, the annular air bags are expanded, and the expanded annular air bags can be tightly attached to the inner wall of the oil filling port. A physical fixing function is formed, the phenomenon that the filling gun deviates due to improper operation or carelessness in the filling process can be effectively avoided, double insurance is provided through the additional fixing structure in cooperation with an original gun locking structure, and safety can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of filling gun technology, and in particular to a filling gun with positioning and anti-deviation function. Background Technology

[0002] The filling gun is a key piece of equipment in automotive filling systems. It serves as the carrier for reliably connecting the filling machine to the vehicle-mounted nozzle holder and fuel tank, controlling the flow of the medium to the vehicle's fuel tank. When the filling gun is connected, the one-way valve core of the filling gun and the one-way valve core of the vehicle-mounted nozzle holder push against each other, ensuring smooth flow of the medium. When the filling gun is disconnected from the nozzle holder, their respective one-way valve cores automatically reset and seal under the action of medium pressure and spring force to ensure no leakage.

[0003] However, in existing technologies, fuel is often stored and refueled under high pressure. Cars are generally refueled through a refueling nozzle. Before refueling, the refueling nozzle needs to be connected to the car and locked. However, in actual use, gas station operators may forget to lock the refueling nozzle or not lock it properly due to operational errors or carelessness. Without stable support, the refueling nozzle may shift or even break off when subjected to high pressure, posing certain safety hazards. Utility Model Content

[0004] The purpose of this invention is to address the safety issues in existing technologies where gas station operators may forget to lock the refueling gun or fail to lock it properly due to operational errors or carelessness. Without stable support, the refueling gun may shift or even break off under high pressure, posing a certain safety hazard. Therefore, this invention proposes a refueling gun with a positioning and anti-deviation function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filling gun with positioning and anti-deviation function, comprising a gun body, a nozzle fixedly connected to one end of the gun body, a sealing tube sleeved on the outer side of the upper end of the nozzle, a sealing cavity formed between the sealing tube and the surface of the nozzle, a micro air pump fixedly connected to one side of the sealing tube, the micro air pump being connected to the sealing cavity, a protective plate fixedly installed on the outer side of the lower end of the sealing tube, and multiple annular airbags uniformly fixedly connected to the outer side of the middle part of the nozzle, wherein a limiting plate is fixedly connected to the bottom of the lowest annular airbag, the multiple annular airbags are connected to each other through an air supply pipe, and the annular airbags and the sealing cavity are connected through an air supply pipe.

[0006] Preferably, a control button is provided on one side of the gun body, and the control button is electrically connected to the micro air pump.

[0007] Preferably, the gun body includes a handguard, which is fixedly mounted on one side of the gun body.

[0008] Preferably, a trigger is engaged in the middle of the gun body, the trigger is located in a slot formed between the gun body and the handguard, and a grip is fixedly installed on one side of the upper part of the gun body.

[0009] Preferably, a connecting pipe is installed through the middle of the grip.

[0010] Preferably, one end of the connecting pipe is connected to and fixed with an oil guide pipe, and the oil guide pipe is connected to the interior of the gun body.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, an inflatable annular airbag is provided. During use, the operator aligns the nozzle with the fuel tank opening and inserts it. At this time, the annular airbag is in a contracted state and enters the fuel tank opening pipe along with the nozzle. When the operator pushes the one-way valve core in the nozzle end against the one-way valve core of the vehicle-mounted nozzle holder, and simultaneously presses the control button to start the micro-air pump, the micro-air pump inflates the sealed cavity and transmits air to multiple annular airbags through the air supply pipe, causing the multiple annular airbags to inflate. The inflated annular airbags can tightly fit the inner wall of the fuel filler neck, filling the tiny gap between the fuel filler gun and the fuel filler neck, forming a physical fixing effect. This can effectively prevent the fuel filler gun from shifting due to improper operation or carelessness during the filling process, thereby improving the stability of the filling process.

[0013] 2. In this utility model, by setting a protective plate at the bottom of the sealing tube, the protective plate can abut against the oil tank opening, which plays a certain role in reminding and protecting. When the protective plate abuts against the oil tank opening each time refueling, it means that the operator can start the micro air pump by controlling the button, and the protective plate can seal the oil tank opening to prevent foreign objects from entering. Attached Figure Description

[0014] Figure 1 This utility model presents a first three-dimensional structural diagram of a filling gun with positioning and anti-deviation function;

[0015] Figure 2 This utility model provides a second three-dimensional structural diagram of a filling gun with positioning and anti-deviation function;

[0016] Figure 3 A cross-sectional view of the connection relationship between the nozzle and the sealing tube of a filling gun with positioning and anti-deviation function is provided for this utility model.

[0017] Figure 4 This invention presents a three-dimensional structural diagram of the nozzle of a filling gun with positioning and anti-deviation function.

[0018] Legend: 1. Gun body; 11. Handguard; 12. Control button; 13. Grip; 14. Connecting tube; 15. Oil guide tube; 16. Trigger; 2. Nozzle; 21. Sealing tube; 22. Sealing chamber; 23. Micro air pump; 24. Protective plate; 25. Annular airbag; 26. Gas supply tube; 27. Limiting plate. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1, as Figure 1-4 As shown, this utility model provides a filling gun with positioning and anti-deviation function, including a gun body 1, a nozzle 2 fixedly connected to one end of the gun body 1, a sealing tube 21 sleeved on the outer side of the upper end of the nozzle 2, a sealing cavity 22 formed between the sealing tube 21 and the surface of the nozzle 2, a micro air pump 23 fixedly connected to one side of the sealing tube 21, the micro air pump 23 being connected to the sealing cavity 22, a protective plate 24 fixedly installed on the outer side of the lower end of the sealing tube 21, and multiple annular airbags 25 uniformly fixedly connected to the outer side of the middle part of the nozzle 2, wherein the bottom of the annular airbag 25 located at the lowest end is fixedly connected to a limiting plate 27, the multiple annular airbags 25 are connected to each other through an air supply pipe 26, and the annular airbags 25 and the sealing cavity 22 are connected through an air supply pipe 26.

[0022] The specific settings and functions of this embodiment are described below. During use, the operator aligns the nozzle 2 with the fuel tank opening and inserts it. At this time, the annular airbag 25 is in a contracted state and enters the pipeline of the fuel tank opening along with the nozzle 2. When the operator pushes the one-way valve core inside the nozzle 2 against the one-way valve core of the vehicle-mounted nozzle head seat, the operator simultaneously presses the control button 12 to start the micro air pump 23. The micro air pump 23 inflates the sealed cavity 22 and transmits the air to multiple annular airbags 25 through the air supply pipe 26, causing the multiple annular airbags 25 to expand. The expanded annular airbags 25 can tightly fit the inner wall of the fuel filler neck, filling the tiny gap between the fuel filler gun and the fuel filler neck, forming a physical fixing effect. This can prevent the fuel filler gun from shifting due to improper operation during the filling process, thereby improving the stability of the filling process.

[0023] Example 2, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a control button 12 is provided on one side of the gun body 1. The control button 12 is electrically connected to the micro air pump 23. The gun body 1 includes a handguard 11, which is fixedly installed on one side of the gun body 1. A trigger 16 is snapped into the middle of the gun body 1. The trigger 16 is located in the slot formed between the gun body 1 and the handguard 11. A grip 13 is fixedly installed on one side of the upper end of the gun body 1. A connecting pipe 14 is installed through the middle of the grip 13. One end of the connecting pipe 14 is connected to a fixed oil guide pipe 15, which is connected to the interior of the gun body 1.

[0024] The overall effect of this embodiment is that, by setting up an inflatable annular airbag 25, during use, the operator aligns the nozzle 2 with the fuel tank opening and inserts it. At this time, the annular airbag 25 is in a contracted state and enters the fuel tank opening pipe along with the nozzle 2. When the operator pushes open the one-way valve core inside the nozzle 2 against the one-way valve core of the vehicle-mounted nozzle holder, and simultaneously presses the control button 12 to start the micro-pump 23, the micro-pump 23 inflates the sealed cavity 22 and transmits air through the air supply pipe 26 to multiple annular airbags 25, causing the multiple annular airbags 25 to inflate. The annular airbag 25 can fit tightly against the inner wall of the filler neck, filling the tiny gap between the filler gun and the filler neck, forming a physical fixing effect. This can prevent the filler gun from shifting due to improper operation during the filling process, thereby improving the stability of the filling. The protective plate 24 set at the bottom of the sealing tube 21 can abut against the fuel tank opening, which plays a certain role in reminder and protection. When the protective plate 24 abuts against the fuel tank opening each time the filler is filled, it means that the operator can start the micro air pump 23 through the control button 12. The protective plate 24 can also seal the fuel tank opening to prevent foreign objects from entering.

[0025] The device's operation and working principle are as follows: During use, the operator holds the handguard 11, aligns the nozzle 2 with the fuel tank opening, and inserts it. The annular airbag 25, not inflated and in a contracted state, enters the fuel tank opening pipe along with the nozzle 2. When the protective plate 24 at the bottom of the sealing tube 21 abuts against the fuel tank opening, the operator can activate the micro-pump 23 via control button 12. The protective plate 24 also seals the fuel tank opening, preventing foreign objects from entering during refueling. When the one-way valve core inside the nozzle 2 pushes open against the one-way valve core of the vehicle-mounted nozzle holder, simultaneously pressing control button 12 activates the micro-pump 23. Pump 23, the micro-air pump 23, inflates the sealed cavity 22 and transmits the air to multiple annular airbags 25 through the air supply pipe 26, causing the multiple annular airbags 25 to expand. The expanded annular airbags 25 can tightly fit the inner wall of the filling port, filling the tiny gap between the filling gun and the filling port, forming a physical fixing effect. This can prevent the filling gun from shifting due to improper operation during the filling process, thereby improving the stability of filling. At this time, pulling the trigger 16 can add oil to the tank. By setting up an additional fixing structure, combined with the original gun locking structure, a double insurance is provided, which can effectively improve safety.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A filling gun with positioning and anti-deviation function, comprising a gun body (1), characterized in that: One end of the gun body (1) is connected to and fixed with a nozzle (2). A sealing tube (21) is sleeved on the outer side of the upper end of the nozzle (2). A sealing cavity (22) is formed between the surface of the sealing tube (21) and the nozzle (2). A micro air pump (23) is connected to and fixed on one side of the sealing tube (21). The micro air pump (23) is connected to the sealing cavity (22). A protective plate (24) is fixedly installed on the outer side of the lower end of the sealing tube (21). Multiple annular airbags (25) are uniformly fixedly connected to the outer side of the middle part of the nozzle (2). The bottom of the annular airbag (25) located at the lowest end is fixedly connected with a limiting plate (27). The multiple annular airbags (25) are connected to each other through an air supply pipe (26). The annular airbags (25) and the sealing cavity (22) are connected through an air supply pipe (26).

2. A filling gun with positioning and anti-deviation function according to claim 1, characterized in that: A control button (12) is provided on one side of the gun body (1), and the control button (12) is electrically connected to the micro air pump (23).

3. A filling gun with positioning and anti-deviation function according to claim 2, characterized in that: The gun body (1) includes a handguard (11), which is fixedly installed on one side of the gun body (1).

4. A filling gun with positioning and anti-deviation function according to claim 1, characterized in that: A trigger (16) is attached to the middle of the gun body (1). The trigger (16) is located in a slot formed between the gun body (1) and the handguard (11). A grip (13) is fixedly installed on one side of the upper end of the gun body (1).

5. A filling gun with positioning and anti-deviation function according to claim 4, characterized in that: A connecting pipe (14) is installed through the middle of the grip (13).

6. A filling gun with positioning and anti-deviation function according to claim 5, characterized in that: One end of the connecting pipe (14) is connected to a fixed oil guide pipe (15), and the oil guide pipe (15) is connected to the inside of the gun body (1).

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