Oil gun special for motorcycle

By designing a locking component and an extended transparent gas collection cover specifically for motorcycle refueling nozzles, the problem of traditional refueling nozzles being difficult to securely insert into the fuel tank opening has been solved, achieving stable operation and improved safety during the refueling process.

CN120987253APending Publication Date: 2025-11-21SESAIJIALIJIA BEIJING PETROCHEM EQUIP
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Patent Information

Application Number
CN202511398363.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

When refueling a motorcycle, traditional fuel nozzles are difficult to insert securely into the fuel tank opening, forcing refueling operators to hold the nozzle in mid-air, which can lead to muscle strain, nerve compression, and decreased work efficiency.

Method used

A motorcycle-specific fuel nozzle was designed, employing a locking assembly and an extended transparent venting cover. The locking assembly includes cylindrical and conical pipe positioning blocks and positioning slots for secure insertion into the fuel tank opening; the extended transparent venting cover is used for sealing and observing the fuel level, reducing fuel splashing.

Benefits of technology

This design ensures a stable insertion of the refueling nozzle, reducing muscle strain and nerve compression for refueling workers, improving work efficiency, and minimizing the safety and health risks associated with oil and gas leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of fuel oil filling equipment, and relates to a motorcycle special oil gun which comprises a motorcycle special oil gun body, an oil gun trigger is installed in the middle of the motorcycle special oil gun body, and one end of the motorcycle special oil gun body is connected with an oil outlet pipe. The end, away from the motorcycle special oil gun body, of the oil outlet pipe is provided with a clamping assembly facilitating positioning of the motorcycle special oil gun body. Through the arrangement of the clamping assembly, the oil gun body special for the motorcycle can be positioned when the oil gun body special for the motorcycle carries out oil filling work on the motorcycle, so that the oil gun body special for the motorcycle can stand on an oil tank, and the problems that a traditional oil gun is difficult to stably insert into an oil tank opening of the motorcycle, and an oil filling worker needs to hold the oil gun in a suspended mode for operation are solved. Therefore, the problems of muscle strain, nerve compression, reduction of working efficiency and the like of the working personnel are easily caused because the muscles of the hands, the shoulders and the neck continuously exert force.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fuel filling equipment, and relates to a motorcycle special oil filling gun. BACKGROUND

[0002] A motorcycle is a light traffic tool with two wheels or a small number of three wheels as a basic structure and fuel or electricity as a power source. The motorcycle is widely applied to urban commuting, long-distance travel, competitive sports and special operation scenes due to high flexibility, strong passing efficiency and low use cost.

[0003] Motorcycle oil filling is a key link in daily maintenance, but due to small oil tank capacity and special oil tank port position, a traditional oil filling gun is difficult to be stably inserted into the oil tank port, and an oil filling operator usually needs to hold the oil filling gun in the air to operate, which requires muscles of hands, shoulders and neck to continuously exert force to maintain stability, and long-term operation is easy to cause muscle strain, nerve compression and work efficiency reduction and other problems. SUMMARY

[0004] The technical problem to be solved by the application is that motorcycle oil filling is a key link in daily maintenance, but due to small oil tank capacity and special oil tank port position, a traditional oil filling gun is difficult to be stably inserted into the oil tank port, and an oil filling operator usually needs to hold the oil filling gun in the air to operate, which requires muscles of hands, shoulders and neck to continuously exert force to maintain stability, and long-term operation is easy to cause muscle strain, nerve compression and work efficiency reduction and other problems.

[0005] The motorcycle special oil filling gun comprises a motorcycle special oil filling gun main body, an oil gun trigger is installed in the middle of the motorcycle special oil filling gun main body, an oil outlet pipe is connected to one end of the motorcycle special oil filling gun main body, an oil gun gear hook is installed in the middle of the motorcycle special oil filling gun main body, and a clamping assembly for positioning the motorcycle special oil filling gun main body is arranged at the end of the oil outlet pipe away from the motorcycle special oil filling gun main body.

[0006] The clamping assembly comprises a cylindrical pipe positioning block, a conical pipe positioning block and a plurality of positioning clamping grooves, the cylindrical pipe positioning block is installed at the end of the oil outlet pipe away from the motorcycle special oil filling gun main body, the conical pipe positioning block is fixedly connected to the end face of the cylindrical pipe positioning block close to the motorcycle special oil filling gun main body, and a plurality of positioning clamping grooves are circumferentially arranged in the middle of the cylindrical pipe positioning block and the conical pipe positioning block.

[0007] The cylindrical pipe positioning block and the conical pipe positioning block are made of transparent thermoplastic polyurethane, and the large end diameter of the conical pipe positioning block is designed as 55 mm.

[0008] The oil outlet pipe is provided with a full-sealing back gas hole near one end of the cylindrical pipe positioning block, and a self-sealing triggering air pipe is connected to the inner end of the full-sealing back gas hole.

[0009] The oil outlet pipe is provided with a plurality of groups of air exchange grooves near the middle part of the circumferential direction of the conical pipe positioning block.

[0010] The middle part of the oil outlet pipe is connected with an elongated transparent gas collecting cover.

[0011] The elongated transparent gas collecting cover is made of elastic transparent polyurethane material.

[0012] The inner diameter of the elongated transparent gas collecting cover near the oil tank is 70 mm.

[0013] Compared with the prior art, the motorcycle special oil gun body can be positioned when the motorcycle special oil gun body is used to refuel the motorcycle, so that the motorcycle special oil gun body can stand at the oil tank, thereby reducing the difficulty of inserting the traditional oil gun into the motorcycle oil tank, and the oiling operator needs to hold the oil gun in the air to operate, thereby continuously exerting the muscles of the hands, shoulders and neck, which can easily cause muscle strain, nerve compression and reduced work efficiency.

[0014] When the motorcycle is refueled, the sealing surface of the elongated transparent gas collecting cover is pressed tightly against the oil tank opening, so that the oil level of the oil tank opening can be observed, the outer peripheral surface of the oil tank opening is pressed tightly by the elastic material of the elongated transparent gas collecting cover, the oil splashing is reduced, the oil gas replaced during the refueling of the motorcycle oil tank is collected, and the safety, health and environmental protection problems caused by the oil gas dispersion are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a structural schematic diagram of the whole application.

[0017] Figure 2 is a structural schematic diagram of the motorcycle special oil gun body of the present application.

[0018] Figure 3 is a structural schematic diagram of the oil outlet pipe of the present application.

[0019] Figure 4 is a sectional view of the oil outlet pipe and the conical pipe positioning block of the present application.

[0020] Figure 5 This is a schematic diagram of the structure of the extended transparent gas collection hood of the present invention.

[0021] In the picture: 1. Motorcycle-specific fuel nozzle body; 11. Fuel nozzle trigger; 12. Fuel outlet pipe; 13. Fuel nozzle gear hook; 2. Cylindrical pipe positioning block; 21. Conical pipe positioning block; 22. Positioning slot; 4. Self-sealing air return hole when full; 5. Air exchange slot; 6. Extended transparent air collection cover. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Example 1 like Figures 1-4 As shown, a motorcycle-specific fuel nozzle includes a motorcycle-specific fuel nozzle body 1, a fuel nozzle trigger 11 installed in the middle of the motorcycle-specific fuel nozzle body 1, an oil outlet pipe 12 connected to one end of the motorcycle-specific fuel nozzle body 1, a fuel nozzle gear hook 13 installed in the middle of the motorcycle-specific fuel nozzle body 1, and a locking component provided at the end of the oil outlet pipe 12 away from the motorcycle-specific fuel nozzle body 1 to facilitate positioning the motorcycle-specific fuel nozzle body 1.

[0027] The positioning assembly includes a cylindrical pipe positioning block 2, a conical pipe positioning block 21, and multiple positioning slots 22. The cylindrical pipe positioning block 2 is installed at the end of the oil outlet pipe 12 away from the motorcycle-specific fuel nozzle body 1. The conical pipe positioning block 21 is fixed to the end face of the cylindrical pipe positioning block 2 near the motorcycle-specific fuel nozzle body 1. Multiple positioning slots 22 are respectively opened around the middle of the cylindrical pipe positioning block 2 and the conical pipe positioning block 21.

[0028] Both the cylindrical pipe positioning block 2 and the conical pipe positioning block 21 are made of transparent thermoplastic polyurethane, and the large end diameter of the conical pipe positioning block 21 is designed to be 55mm.

[0029] The oil outlet pipe 12 has a self-sealing return air hole 4 at one end near the cylindrical pipe positioning block 2, and a vent pipe that can be self-sealed is connected to the inner end of the self-sealing return air hole 4.

[0030] During operation, the outer diameter of the cylindrical pipe positioning block 2 matches the inner diameter of the fuel tank opening, leaving a 2mm gap for easy insertion and refueling. The inner hole of the cylindrical pipe positioning block 2 and the outer diameter of the oil outlet pipe 12 are seamlessly fitted, and the positioning slot 22 can be used for axial positioning of the motorcycle-specific refueling gun body 1. The oil outlet pipe 12 is inserted into the fuel tank to a minimum depth of 30mm. The outer diameter of the cylindrical pipe positioning block 2 and the conical pipe positioning block 21 is designed to be 30mm, which facilitates guidance and provides positioning length. For refueling gun positioning in motorcycle fuel tanks without crossbars, the positioning slot 22 at the upper end of the cylindrical pipe positioning block 2 and the conical pipe positioning block 21 is designed with a large end diameter of 55mm. The self-sealing air return hole of the nozzle is moved 10mm towards the nozzle head than that of ordinary refueling guns, ensuring timely self-sealing when full, while maintaining a longer positioning section length.

[0031] After positioning the motorcycle-specific fuel nozzle body 1, the flow rate of gasoline during refueling can be adjusted through the fuel nozzle position hook 13. When the fuel level in the fuel tank rises, the air is compressed through the self-sealing air return hole 4, which can trigger the self-sealing device and thus stop refueling.

[0032] It is worth noting that, based on the survey data of various motorcycle fuel tank opening sizes, as the fuel tank volume increases, the fuel tank opening also increases. The inner diameter of the fuel tank opening ranges from 26 to 50 mm, with most concentrated between 30 and 33 mm. The depth of the fuel tank opening is concentrated between 30 and 50 mm. For fuel tanks where the depth can be measured, there is a crossbar at the bottom of the fuel tank opening to prevent the fuel nozzle from being inserted too deeply and blocking the refueling passage. For fuel tanks where there is no crossbar at the bottom, the depth cannot be measured and is generally greater than 50 mm. The outer diameter of the fuel tank opening usually ranges from 43 to 65 mm. Therefore, it can be concluded that the inner diameter of the fuel tank opening can be used to determine the positioning space. The minimum value for the diameter and the minimum value for the depth are generally 30 mm, which can solve the refueling positioning problem suitable for most fuel tank openings. However, for fuel tank openings with an inner diameter of less than 30 mm and a depth of less than 30 mm, it is recommended to lift the nozzle and refuel.

[0033] When it is necessary to insert the oil outlet pipe 12 into the motorcycle's fuel tank for refueling, the motorcycle-specific refueling nozzle body 1 must stand upright. In the radial direction, the oil outlet pipe 12 must be locked to the cylindrical surface inside the fuel tank opening. In the axial direction of the fuel tank depth, one method is to rely on the horizontal stop at the bottom of the fuel tank to prevent the nozzle from touching the bottom. In the case of a fuel tank without a horizontal stop, there must be a limiting measure in the axial direction. Therefore, a cylindrical pipe positioning block 2 and a conical pipe positioning block 21 are set in the middle of the oil outlet pipe 12.

[0034] This step, through the setting of the positioning component, can position the motorcycle-specific fuel nozzle body 1 when refueling the motorcycle, so that the motorcycle-specific fuel nozzle body 1 can stand upright at the fuel tank. This reduces the difficulty of the traditional fuel nozzle being firmly inserted into the motorcycle fuel tank opening, and the need for the refueling operator to hold the fuel nozzle in the air to operate it. As a result, the continuous exertion of the hand, shoulder and neck muscles can easily cause problems such as muscle strain, nerve compression and decreased work efficiency of the staff.

[0035] Example 2 like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, multiple sets of ventilation slots 5 are provided around the center of the oil outlet pipe 12 near the conical pipe positioning block 21.

[0036] An extended transparent gas collection hood 6 is connected to the middle of the oil outlet pipe 12 by a retaining spring.

[0037] The extended transparent gas collection hood 6 is made of elastic and transparent polyurethane material.

[0038] The inner diameter of the extended transparent vent 6 near the fuel tank is 70mm.

[0039] When refueling a motorcycle, there is another important issue: while positioning the fuel outlet pipe 12 and the fuel tank opening, it is also necessary to ensure that the fuel vapor is replaced and discharged during refueling. Otherwise, it will affect the fuel vapor recovery function. If the exhaust gap is insufficient, it will affect normal refueling and cause fuel vapor to spray back, which is counterproductive. Therefore, multiple ventilation grooves 5 are opened on the outer circumference of the middle part of the fuel outlet pipe 12 near the end face of the conical pipe positioning block 21 to ensure smooth air return.

[0040] During refueling, one end of the extended transparent vent cover 6 will press against the fuel tank to achieve a sealing effect, thereby reducing the occurrence of fuel vapor drifting into the external environment. Furthermore, since the extended transparent vent cover 6 is made of elastic transparent polyurethane material, it is convenient to collect fuel vapor while observing whether it will overflow after the tank is full. At the same time, the 70mm inner diameter of the extended transparent vent cover 6 can cover the fuel tank cavity, improving the sealing effect.

[0041] This step involves pressing the sealing surface of the extended transparent vent cover 6 tightly against the fuel tank opening when refueling the motorcycle. This allows for observation of the fuel level at the fuel tank opening and also relies on the elasticity of the extended transparent vent cover 6 to press against the outer surface of the fuel tank opening, reducing fuel splashing and collecting the fuel vapors displaced during refueling, thus avoiding safety, health, and environmental problems caused by the escape of fuel vapors.

[0042] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A motorcycle-specific fuel nozzle, comprising a motorcycle-specific fuel nozzle body (1), characterized in that: The motorcycle-specific fuel nozzle body (1) is equipped with a fuel nozzle trigger (11) in the middle, and a fuel outlet pipe (12) is connected to one end of the motorcycle-specific fuel nozzle body (1). A fuel nozzle gear hook (13) is installed in the middle of the motorcycle-specific fuel nozzle body (1). A locking component is provided at the end of the fuel outlet pipe (12) away from the motorcycle-specific fuel nozzle body (1) to facilitate positioning of the motorcycle-specific fuel nozzle body (1).

2. The motorcycle-specific fuel nozzle according to claim 1, characterized in that: The positioning assembly includes a cylindrical pipe positioning block (2), a conical pipe positioning block (21), and multiple positioning slots (22). The cylindrical pipe positioning block (2) is installed at the end of the oil outlet pipe (12) away from the motorcycle-specific fuel nozzle body (1). The conical pipe positioning block (21) is fixed to the end face of the cylindrical pipe positioning block (2) near the motorcycle-specific fuel nozzle body (1). Multiple positioning slots (22) are respectively opened around the middle of the cylindrical pipe positioning block (2) and the conical pipe positioning block (21).

3. A motorcycle-specific fuel nozzle according to claim 2, characterized in that: The cylindrical pipe positioning block (2) and the conical pipe positioning block (21) are both made of transparent thermoplastic polyurethane, and the large end diameter of the conical pipe positioning block (21) is designed to be 55mm.

4. A motorcycle-specific fuel nozzle according to claim 1, characterized in that: The oil outlet pipe (12) has a self-sealing return air hole (4) at one end near the cylindrical pipe positioning block (2), and a vent pipe that can be self-sealed is connected to the inner end of the self-sealing return air hole (4).

5. A motorcycle-specific fuel nozzle according to claim 1, characterized in that: The oil outlet pipe (12) has multiple sets of ventilation slots (5) around its circumference near the center of the conical pipe positioning block (21).

6. A motorcycle-specific fuel nozzle according to claim 1, characterized in that: The oil outlet pipe (12) is connected to an extended transparent gas collection hood (6) by a retaining spring in the middle.

7. A motorcycle-specific fuel nozzle according to claim 6, characterized in that: The extended transparent gas collection hood (6) is made of elastic and transparent polyurethane material.

8. A motorcycle-specific fuel nozzle according to claim 6, characterized in that: The inner diameter of the extended transparent gas collection hood (6) near the oil tank is 70 mm.