Portable oil filling device for off-road vehicle

Abstract

The utility model discloses off -road vehicle convenient oil liquid filling device, including oil storage tank, filling connector, filling valve, oil outlet pipe, oil outlet valve, pneumatic quick connector, and the oil storage tank includes jar body and cover body, filling connector installs on the cover body, and filling connector has the filling channel, filling valve installs on the filling connector, oil outlet pipe fixed mounting is on the cover body, and the lower extreme of oil outlet pipe is in the jar body, and the upper extreme of oil outlet pipe is beyond the cover body, and oil outlet valve installs on the oil outlet pipe, and pneumatic quick connector installs on the cover body, and pneumatic quick connector has the air inlet channel, and is used to add gas to the jar body and press out the oil liquid in the jar body, the utility model discloses can utilize external gas source to fill the oil tank, and utilize the gas pressure kinetic energy to replace the manpower, make the oil liquid filling efficiency to have been improved, and the oil liquid spilling phenomenon is eradicated, and the oiling amount is controllable, avoids appearing the condition of little, and the oil liquid is added to produce the situation of leak. Make the reliability of oil liquid filling operation operation guarantee.

Description

Technical Field

[0001] This utility model belongs to the field of refueling facilities, and more specifically, relates to a convenient oil filling device for off-road vehicles. Background Technology

[0002] Adding and changing fluids in off-road vehicles is a crucial task. These fluids include engine oil, transmission fluid, final drive fluid, and wheel-end reducer fluid.

[0003] Currently, the existing technologies for filling such oils mainly include the following methods, but all of them have obvious drawbacks: The first method is to use traditional manual tools for refueling. This is currently the most common method in field environments, typically relying on a hand-cranked pump, a manual pull-out nozzle, or a simple oil can with a funnel. This method has significant drawbacks: 1) Extremely low operational efficiency: The aforementioned transmission fluid and gear oil (final reducer / wheel-end reducer oil) typically have high viscosity, especially at low temperatures, where their fluidity becomes very poor. When using a manual pump for pumping, operators need to exert tremendous physical strength, generating pressure by reciprocating cranking or pulling the handle. The entire filling process is extremely slow; filling multiple parts of a vehicle can take tens of minutes or even longer, severely impacting the overall efficiency of maintenance and vehicle availability.

[0004] 2) High labor intensity and reliance on multiple people: Due to the tricky location of the filling port and the need for continuous physical input of the manual pump, the operation often requires two people to work together. One person is responsible for supporting the filling pipeline to ensure that it is accurately aligned with the filling port, while the other person is responsible for the laborious operation of the manual pump. The long-term repetitive physical labor can easily lead to operator fatigue.

[0005] 3) Prone to spills, resulting in significant waste and environmental pollution: The output flow of manual pumps is unstable and dependent on the operator's physical strength, easily causing pulses or drips. In confined spaces and poor lighting conditions, the filling lines are difficult to secure, making it very easy for oil to overflow from the filling port or spill when changing oil containers. This not only wastes expensive specialty oils, but more seriously, leaks onto the ground pollute the work site and the outdoor environment, create fire hazards under vehicles, or cause workers to slip and fall, resulting in poor safety.

[0006] 4) Difficulty in controlling filling accuracy: Manual filling methods typically lack precise measurement methods. Operators can only rely on experience or the scale on the oil drum to estimate, making it difficult to accurately control the filling amount. This easily leads to underfilling or missing oil, causing insufficient lubrication of precision components such as the gearbox and reducer, resulting in wear or even burnout; while overfilling may cause damage to oil seals, oil foaming, or increased operating resistance.

[0007] The second option is to use large-scale refueling equipment. Large, fixed repair shops are equipped with large pneumatic or electric refueling devices. These devices are usually integrated into fixed piping systems, offering a high degree of automation and good refueling efficiency and accuracy. However, these large, specialized refueling systems are complex and highly integrated, with procurement costs often reaching hundreds of thousands of RMB. For small-batch production or non-fixed-point field support, such equipment investment undoubtedly brings a huge increase in costs and is uneconomical. Moreover, these devices are bulky and heavy, typically only usable at fixed workstations (fixed-point use), completely immobile, let alone used for field support with vehicles. They cannot meet the portability and mobility requirements of off-road vehicles in outdoor environments. Utility Model Content

[0008] To address the aforementioned shortcomings or improvement needs of existing technologies, this utility model provides a convenient oil filling device for off-road vehicles. It utilizes an external air source to fill the fuel tank, replacing manual labor with pneumatic kinetic energy. This reduces the workload from two people to a single person, improving filling efficiency and eliminating spillage, thus promoting clean and civilized production on-site. Furthermore, the filling amount is controllable, preventing underfilling or leakage. This ensures the reliability of the oil filling operation.

[0009] To achieve the above objectives, this utility model provides a convenient oil filling device for off-road vehicles, comprising an oil reservoir, a filling connector, a filling valve, an oil outlet pipe, an oil outlet valve, and a pneumatic quick-connect connector, wherein: The oil storage tank includes a tank body and a cover disposed at the top of the tank body; The filling connector is installed on the cover and has a filling channel for injecting oil into the tank. The filling valve is installed on the filling connector and is used to open and close the filling channel; The oil outlet pipe is fixedly installed on the cover, with the lower end of the oil outlet pipe extending into the tank and the upper end of the oil outlet pipe extending beyond the cover, so as to add the oil in the tank to the external oil tank. The oil outlet valve is installed on the oil outlet pipe and is used to open and close the oil outlet channel of the oil outlet pipe; The pneumatic quick-connect fitting is installed on the cover for connecting to an external air source. The pneumatic quick-connect fitting has an air inlet channel for adding gas into the tank to press out the oil inside the tank.

[0010] Preferably, it also includes a handle mounted on the cover.

[0011] Preferably, it also includes a pressure relief valve installed on the tank.

[0012] Preferably, a pressure gauge is installed on the pneumatic quick-connect fitting to obtain the air pressure in the air intake channel.

[0013] Preferably, a flow meter is installed on the oil outlet pipe.

[0014] Preferably, the pneumatic quick-connect coupling is a C-type quick-connect coupling.

[0015] Preferably, an oil level gauge is installed on the tank to obtain the oil volume.

[0016] Preferably, a funnel is installed on the filling connector.

[0017] Preferably, the upper end of the oil outlet pipe has a horizontal portion to facilitate insertion into an external oil tank.

[0018] Preferably, a refueling nozzle is installed at the upper end of the oil outlet pipe.

[0019] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects: 1) The portable oil filling device for off-road vehicles of this utility model utilizes compressed air provided by an external air source to input air pressure into the oil tank through a pneumatic quick-connect connector. The oil is then pumped out by the kinetic energy of the air pressure, achieving fast and stable oil delivery. This greatly shortens the filling time, improves work efficiency, and meets the needs of off-road vehicles for rapid filling in the field.

[0020] 2) The portable oil filling device for off-road vehicles of this utility model is driven by air pressure. The operator only needs to connect the air source and pipeline and control the valve to complete the filling. No continuous physical input is required, which allows a single person to complete the operation independently, reducing manpower input and improving the flexibility and convenience of operation. It is especially suitable for use in complex outdoor environments.

[0021] 3) The portable fluid filling device for off-road vehicles of this utility model has a relatively simple structure, significantly reducing procurement costs and avoiding high equipment investment. At the same time, its small size and light weight make it easy to carry and move, overcoming the limitations of large filling equipment that can only be used at fixed locations and cannot be used on-vehicle. It is suitable for small-batch production or non-fixed-point field support scenarios, providing an efficient and convenient solution for fluid filling of off-road vehicles. Attached Figure Description

[0022] Figures 1-3 These are schematic diagrams of the present invention from different perspectives.

[0023] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Oil storage tank; 2. Filling connector; 3. Handle; 4. Filling valve; 5. Oil outlet valve; 6. Oil outlet pipe; 7. Oil level gauge; 8. Pneumatic quick-connect connector; 9. Pressure relief valve; 10. Tank body; 11. Cover; 12. Funnel. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 of the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Reference Figures 1-3 A convenient oil filling device for off-road vehicles includes an oil storage tank 1, a filling connector 2, a filling valve 4, an oil outlet pipe 6, an oil outlet valve 5, and a pneumatic quick-connect connector 8.

[0026] The oil storage tank 1 includes a tank body 10 and a cover 11 disposed on the top of the tank body 10.

[0027] The filling connector 2 is installed on the cover 11. The filling connector 2 has a filling channel for injecting oil into the tank 10.

[0028] The filling valve 4 is installed on the filling connector 2 and is used to open and close the filling channel.

[0029] The oil outlet pipe 6 is fixedly installed on the cover 11. The lower end of the oil outlet pipe 6 extends into the tank 10, and the upper end of the oil outlet pipe 6 extends beyond the cover 11, so as to add the oil in the tank 10 to the external oil tank.

[0030] The oil outlet valve 5 is installed on the oil outlet pipe 6 and is used to open and close the oil outlet channel of the oil outlet pipe 6.

[0031] The pneumatic quick-connect fitting 8 is mounted on the cover 11 for connecting to an external air source. The pneumatic quick-connect fitting 8 has an air inlet channel for adding gas into the tank 10 to pressurize the oil inside. Outdoors, the air tank of an off-road vehicle's inflation system can be used as an air source to provide compressed air. If the off-road vehicle is a military off-road vehicle, most military off-road vehicles come with an inflation system and an air tank. If it is a conventional off-road vehicle, it can be modified to add an on-board air (OBA) system, which has an air tank. In short, off-road vehicles need to be equipped with an air tank as an air source.

[0032] This invention utilizes a pneumatic quick-connect fitting 8 to connect to an external air source, replacing manual labor with pneumatic kinetic energy. Compressed air enters the tank 10 of the oil storage tank 1, creating a stable and continuous pressure above the oil, forcing the oil to flow out through the outlet pipe 6. This pneumatically driven method provides a stable and continuous output, completely eliminating reliance on operator physical strength. Regardless of the oil viscosity or the ambient temperature, as long as the air source pressure is sufficient, rapid and stable oil delivery can be achieved, greatly shortening refueling time and significantly improving work efficiency.

[0033] Secondly, the operator only needs to align the oil outlet pipe 6 with the filling port of the external oil tank and then open the oil outlet valve 5. The entire filling process is automatically completed by air pressure, which not only greatly reduces labor intensity and manpower input, but also improves the flexibility and convenience of operation in complex field environments.

[0034] The addition of oil is controlled by the filling connector 2 and the filling valve 4, while the output of oil is controlled by the oil outlet valve 5. The entry of gas is controlled by the pneumatic quick-connect connector 8. Throughout the filling process, the oil remains in the sealed tank 10 and pipelines, and is forced out by stable air pressure, rather than by the manual pump or the tilting of the oil can. This stable and controllable flow method, combined with the opening and closing function of the oil outlet valve 5, can prevent oil spillage, achieve clean and civilized production on site, and effectively avoid environmental pollution.

[0035] The main body of this utility model is an oil storage tank 1, with all functional components integrated on the cover 11. It is compact, lightweight, and easy to carry and move. It does not rely on fixed factory pipelines or power supplies; its power source is external compressed air, which is readily available in maintenance workstations or on the inflation systems of off-road vehicles (especially military off-road vehicles). Therefore, this utility model can meet the stringent requirements of off-road vehicles for portability and mobility in the field, and is suitable for small-batch production or non-fixed-point field support scenarios.

[0036] Furthermore, it also includes a handle 3 mounted on the cover 11. The addition of the handle 3 to the cover 11 significantly improves the portability and ease of operation of the device. First, the handle 3 provides the operator with a stable point of force application, allowing a single person to easily move, tilt, and adjust the position of the device without the need for multiple people, significantly reducing labor intensity. Second, in complex outdoor environments or confined spaces, the handle 3 facilitates precise control of the device's posture and position, reducing errors caused by difficulty in gripping and improving operational accuracy and efficiency. Third, the structural design of the handle 3 enhances the stability of the device, preventing shaking or instability caused by uneven force during adjustment, ensuring a smooth filling process.

[0037] Furthermore, it also includes a pressure relief valve 9 installed on the tank 10. The pressure relief valve 9 effectively ensures operational safety and prevents danger caused by excessive air pressure inside the tank 10, which is especially crucial in complex field environments. Secondly, the pressure relief valve 9 optimizes the filling process, enabling the air pressure inside the tank 10 to quickly balance, reducing the impact of residual air pressure on subsequent operations after filling, and improving operational efficiency.

[0038] Furthermore, a pressure gauge is installed on the pneumatic quick-connect fitting 8 to obtain the air pressure in the air intake channel. The pressure gauge provides real-time air pressure monitoring, allowing operators to intuitively understand the air pressure status in the air intake channel and tank 10, accurately adjust the air pressure, and avoid filling failure or oil splashing and leakage due to improper air pressure, ensuring accurate and stable filling; the pressure gauge also enhances safety, promptly alerting when the air pressure is too high to prevent oil splashing.

[0039] Furthermore, a flow meter is installed on the oil outlet pipe 6. The flow meter can monitor the flow rate and total volume of the oil in real time, providing operators with intuitive quantitative data, thereby enabling precise control of the filling amount. In actual operation, different types of oils (such as lubricating oil, transmission fluid, etc.) require strict adherence to specific filling volume requirements. The introduction of the flow meter avoids the problem of overfilling or underfilling due to insufficient experience or estimation errors, effectively improving the accuracy of the filling operation. The dynamic display function of the flow meter allows operators to intuitively observe the oil flow and adjust the air pressure or filling time in a timely manner to ensure that the oil is output stably at the required flow rate.

[0040] Furthermore, the pneumatic quick-connect coupling 8 adopts a C-type quick-connect coupling, preferably model PM502. C-type quick-connect couplings are commonly used connecting elements in pneumatic systems, enabling quick insertion and removal without tools, significantly improving work efficiency. For example, in automotive repair and maintenance or industrial equipment maintenance, it can greatly shorten pipeline connection / disconnection time. The C-type quick-connect coupling features a self-locking design; after insertion, the internal steel ball automatically locks the interface, ensuring no leakage of high-pressure gas. This structure is ideal for frequent insertion and removal scenarios. The PM502 model integrates pressure monitoring functionality, displaying the real-time gas pressure status of the gas source input, optimizing gas pressure control during the filling process, and improving operational accuracy and safety.

[0041] Furthermore, a dipstick 7 is installed on the tank 10 to obtain the oil level. The dipstick 7 provides operators with intuitive information on the oil level, facilitating real-time monitoring of the oil level in the storage tank 1 and ensuring the accuracy of the filling operation. In actual operation, operators can accurately determine whether oil needs to be added based on the scale on the dipstick 7, avoiding interruptions in filling due to insufficient oil or waste of resources due to overfilling. The dipstick 7 enhances the visualization and convenience of the operation.

[0042] Furthermore, a funnel 12 is installed on the filling connector 2. The conical structure of the funnel 12 can effectively guide the oil into the filling connector 2, reducing splashing and overflow of the oil during the pouring process. Especially for high-viscosity oils, such as transmission fluid and gear oil, this design greatly improves the convenience and efficiency of filling. Secondly, the large opening design of the funnel 12 reduces the difficulty of operation when pouring oil.

[0043] Furthermore, the upper end of the oil outlet pipe 6 has a horizontal section to facilitate its insertion into the external oil tank. This design makes it easier to align the oil outlet pipe 6 and insert it into the oil tank opening, reducing difficulties in refueling caused by irregular positions or shapes of the oil tank opening. This is especially beneficial in field environments or space-constrained scenarios, significantly improving operational flexibility and success rates. Secondly, the horizontal section helps maintain the stability of oil flow, avoiding oil turbulence or splashing caused by pipe bends or improper angles. This ensures that the oil can be injected into the oil tank smoothly and steadily, reducing refueling time and the risk of oil waste.

[0044] Furthermore, a refueling nozzle (not shown in the figure) is installed at the upper end of the oil outlet pipe 6. The installation of the refueling nozzle greatly improves the accuracy and controllability of oil dispensing. Operators can precisely control the oil flow rate and dispensing volume by controlling the nozzle's switch, avoiding oil waste and problems of insufficient or excessive dispensing. Secondly, the refueling nozzle is convenient and quick to use, adaptable to oil tank filling ports of different shapes and positions, improving the flexibility and adaptability of dispensing operations. In addition, the design of the refueling nozzle enhances the safety of the dispensing process, reduces the risk of oil dripping and splashing, and lowers environmental pollution and safety hazards.

[0045] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable oil filling device for off-road vehicles, characterized in that, Includes an oil storage tank, filling connector, filling valve, oil outlet pipe, oil outlet valve, and pneumatic quick-connect fitting, wherein: The oil storage tank includes a tank body and a cover disposed at the top of the tank body; The filling connector is installed on the cover and has a filling channel for injecting oil into the tank. The filling valve is installed on the filling connector and is used to open and close the filling channel; The oil outlet pipe is fixedly installed on the cover, with the lower end of the oil outlet pipe extending into the tank and the upper end of the oil outlet pipe extending beyond the cover, so as to add the oil in the tank to the external oil tank. The oil outlet valve is installed on the oil outlet pipe and is used to open and close the oil outlet channel of the oil outlet pipe; The pneumatic quick-connect fitting is installed on the cover for connecting to an external air source. The pneumatic quick-connect fitting has an air inlet channel for adding gas into the tank to press out the oil inside the tank.

2. The portable oil filler for off-road vehicles according to claim 1, characterized in that, It also includes a handle mounted on the cover.

3. The portable oil filler for off-road vehicles according to claim 1, characterized in that, It also includes a pressure relief valve installed on the tank.

4. The portable oil filler for off-road vehicles according to claim 1, characterized in that, The pneumatic quick-connect fitting is equipped with a pressure gauge to obtain the air pressure in the air intake channel.

5. The portable oil filler for off-road vehicles according to claim 1, characterized in that, A flow meter is installed on the oil outlet pipe.

6. The portable oil filler for off-road vehicles according to claim 1, characterized in that, The pneumatic quick-connect fitting adopts a C-type quick-connect fitting.

7. The portable oil filler for off-road vehicles according to claim 1, characterized in that, The tank is equipped with an oil level gauge to obtain the oil volume.

8. The portable oil filler for off-road vehicles according to claim 1, characterized in that, A funnel is installed on the filling connector.

9. The portable oil filler for off-road vehicles according to claim 1, characterized in that, The upper end of the oil outlet pipe has a horizontal section to facilitate its insertion into an external oil tank.

10. The portable oil filler for off-road vehicles, according to claim 1, characterized in that, A refueling nozzle is installed at the upper end of the oil outlet pipe.

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