Living quarter equipment oil extraction device applied to motor home
By designing an oil extraction device for the living area equipment of RVs, including an L-shaped oil extractor, oil pipe and fuel pipe, the problem of complex and easy installation of existing oil extraction devices is solved, and quick and easy installation and high reliability performance is achieved.
Patent Information
- Application Number
- CN202420867912.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing oil extraction device needs to be installed to remove the original vehicle's fuel tank, which is difficult to construct, time-consuming and labor-intensive, and may damage the original vehicle's fuel tank cap and fuel tank, increasing the later failure rate.
An oil extraction device applied to the living area equipment of RVs is designed, including an oil extractor, an oil pipe and a fuel pipe. The oil extractor is in an integral L-shaped shape, and the oil outlet is connected to the oil pipe. The outside of the oil pipe is fixed by a clamp. The other end of the oil extractor is equipped with an anti-detachment quick connector to connect the auxiliary oil port on the original vehicle's fuel tank. The fuel pipe penetrates the auxiliary oil port and extends into the oil tank.
The installed fuel parking heating device is connected to the original vehicle fuel tank, which is quick and easy to install and reliable performance. There is no need to remove the original vehicle fuel tank cover and oil pump, reducing the failure rate of later maintenance.
Smart Images

Figure CN223033116U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of RV modification, and particularly relates to an oil extraction device for living area equipment applied to RVs. Background Art
[0002] At present, for the modification of special vehicles, such as RV modification and camper van modification, a fuel parking heating device is generally installed on the modified vehicle. The fuel parking heating device plays a very important role in the case of low winter temperatures, and can preheat the engine and supply energy to the living area electrical equipment when parked. The fuel parking heating device needs to consume fuel to work. Before modification, the engine on the original vehicle is connected to the original vehicle fuel tank through a fuel pipe. The installed fuel parking heating device also needs to extract oil from the original vehicle fuel tank. At present, an oil extraction device is mostly installed to connect the installed fuel parking heating device to the original vehicle fuel tank. When installing the existing oil extraction device, the original vehicle fuel tank needs to be disassembled, and a hole is drilled in the fuel tank cap of the original vehicle fuel tank. Then, the fuel pipe of the oil extraction device is inserted into the drilled hole, and the hole is sealed with sealant, a sealing gasket, etc. Drilling a hole in the fuel tank cap is risky and unsafe, and there is a risk of oil leakage. Or the auxiliary oil port on the fuel tank cap is modified to match the installation size, so that the oil extraction device can extend into the fuel tank from the fuel tank cap to supply oil to the fuel parking heating device. After modification, it also needs to be sealed again. The existing oil extraction device is very troublesome to disassemble and assemble, and the assembly size is not easy to master. The operation is cumbersome and not convenient enough. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide an oil extraction device for living area equipment applied to RVs, which realizes the connection between the installed fuel parking heating device and the original vehicle fuel tank. The oil extraction device is installed quickly and simply, and has reliable performance. It overcomes the deficiencies of the existing fuel parking heating device when installing the oil extraction device, which requires disassembling the entire original vehicle fuel tank and fuel tank cap, with high construction difficulty, time-consuming and laborious, and will also cause damage to the original vehicle fuel tank cap and fuel tank, resulting in an increase in the later failure rate.
[0004] The technical solution adopted by the utility model is as follows:
[0005] An oil extraction device for living area equipment applied to RVs includes an oil extractor, a fuel pipe, and a fuel oil pipe. The oil extractor is integrally L-shaped. One end of the oil extractor is provided with an oil outlet nozzle, and the oil outlet nozzle is connected to the fuel pipe, and the outside of the fuel pipe is also fixed by a clamp; the fuel pipe is used to connect to the oil inlet of the fuel parking heating device; the other end of the oil extractor is provided with an anti-drop quick connector for connecting to the auxiliary oil port on the original vehicle fuel tank, and a rubber sealing gasket ring is arranged inside the port at the end of the oil extractor connecting to the auxiliary oil port for sealing and sleeving with the fuel oil pipe; the fuel oil pipe passes through the auxiliary oil port and extends into the fuel tank, and the tail end of the fuel oil pipe is 2 cm away from the bottom of the fuel tank.
[0006] Furthermore, a stepped clamping interface is provided on the outer wall of the oil outlet nozzle. The stepped clamping interface is placed inside the oil pipe and is clamped with the inner wall of the oil pipe.
[0007] Furthermore, the anti - detachment quick connector can adopt a ferrule - type quick connector or a threaded quick connector. The anti - detachment quick connector includes anti - detachment retaining brackets on the left and right sides, retaining rings on the left and right sides, and sealing rings. The anti - detachment retaining brackets pass through the side wall and are connected to the retaining rings. And there are marbles or springs between the retaining rings and the inner wall of the anti - detachment quick connector. The anti - detachment quick connector can be buckled on the auxiliary oil port for fixing the oil extractor to the auxiliary oil port on the original vehicle fuel tank.
[0008] Furthermore, the top end of the fuel pipe is conical and is provided with a conical rubber clamping ring for sealing, which is convenient for fastening connection with the oil extractor. The tail end of the fuel pipe is provided with a triangular notch for convenient and quick oil extraction.
[0009] Furthermore, the pipe wall of the fuel pipe is corrugated.
[0010] Furthermore, the diameter of the top end of the fuel pipe is larger than that of the tail end, and the whole is conical.
[0011] The beneficial effects of the present utility model are as follows:
[0012] (1) The oil extraction device realizes the connection between the installed fuel parking heating device and the original vehicle fuel tank, enabling the fuel parking heating device to draw oil from the original vehicle fuel tank, and there is no mutual influence between the oil used by the fuel parking heating device and the oil used by the original vehicle engine;
[0013] (2) The oil extraction device is installed on the vehicle fuel tank cap, without the need to disassemble the original vehicle fuel tank cap and fuel pump, without damaging the original vehicle fuel tank and fuel pump, reducing the failure rate of later maintenance;
[0014] (3) The oil extraction device is quickly and simply installed and has reliable performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic structural diagram of the oil extraction device for the living area equipment of a motorhome in the embodiment of the present utility model.
[0016] Figure 2 It is a front - view structural diagram of the oil extractor in the embodiment of the present utility model.
[0017] Figure 3 It is a schematic structural diagram of the connection port of the oil extractor in the embodiment of the present utility model.
[0018] Figure 4 It is a schematic structural diagram of the fuel pipe in the embodiment of the present utility model.
[0019] In the figure: 1 - fuel tank, 2 - original vehicle sensor, 3 - original vehicle fuel inlet, 4 - original vehicle fuel outlet, 5 - fuel extractor, 6 - clamp, 7 - fuel pipe, 8 - auxiliary fuel port, 9 - fuel hose, 10 - anti - detachment retainer, 11 - snap ring, 12 - sealing ring. Detailed implementation mode
[0020] In order to more clearly understand the above - mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation modes.
[0021] As Figures 1 to 4 shown, an oil extraction device for living area equipment of a motorhome is installed on the original vehicle fuel tank 1, and is used to connect the fuel - powered parking heating device with the fuel tank 1 to extract oil for the fuel - powered parking heating device. The fuel tank cover of the original vehicle fuel tank 1 is provided with an original vehicle sensor 2, an original vehicle fuel inlet 3, an original vehicle fuel outlet 4 and an auxiliary fuel port 8, and the oil extraction device is installed on the auxiliary fuel port 8.
[0022] As Figure 1 shown, the oil extraction device for living area equipment of a motorhome in this embodiment includes a fuel extractor 5, a fuel pipe 7 and a fuel hose 9. The fuel extractor 5 is integrally L - shaped. One end of the fuel extractor 5 is provided with an oil outlet nozzle, and the oil outlet nozzle is connected to the fuel pipe 7. The outer wall of the oil outlet nozzle is provided with a stepped clamping interface, and the stepped clamping interface is placed inside the fuel pipe 7 and is clamped with the inner wall of the fuel pipe 7 to enhance the clamping tightness. The outside of the fuel pipe 7 is also fixed by a clamp 6 to prevent slipping. The fuel pipe 7 is used to connect to the fuel inlet of the fuel - powered parking heating device, and the connection method can also be fixed by a clamp. The other end of the fuel extractor 5 is provided with an anti - detachment quick connector for connecting to the auxiliary fuel port 8 on the original vehicle fuel tank 1, and a rubber sealing gasket ring is provided inside the port at the end of the fuel extractor 5 where it connects to the auxiliary fuel port 8 for sealingly sleeving with the fuel hose 9. The fuel hose 9 passes through the auxiliary fuel port 8 and extends into the fuel tank 1, leaving a height of 2 cm from the bottom of the fuel tank 1. The tail end of the fuel hose 9 is provided with a triangular notch to avoid excessive oil pressure during oil extraction and facilitate quick oil extraction.
[0023] The anti - detachment quick connector can be a ferrule - type quick connector, a threaded quick connector, etc. As Figure 2 、 Figure 3 shown, the ferrule - type quick connector with a diameter of 7.89 mm is adopted in this embodiment, which is matched with the size of the auxiliary fuel port 8 on the fuel tank cover of the original vehicle. The anti - detachment quick connector includes anti - detachment retainers 10 on both the left and right sides, snap rings 11 on both the left and right sides and a sealing ring 12. The anti - detachment retainer 10 passes through the side wall and is connected to the snap ring 11, and an elastic member such as a ball or a spring is provided between the snap ring 11 and the inner wall of the anti - detachment quick connector. After the anti - detachment quick connector is buckled on the auxiliary fuel port 8, the elastic force of the elastic member makes the snap ring 11 quickly lock with the auxiliary fuel port 8; it is used to fix the fuel extractor 5 to the auxiliary fuel port 8 on the fuel tank cover of the original vehicle.
[0024] AsFigure 4 As shown, the fuel pipe 9 is a flexible hose that can be bent and has the characteristics of high pressure resistance, corrosion resistance, and oil resistance. The top end of the fuel pipe 9 is conical and is equipped with a conical rubber snap ring for sealing, which is convenient for fastening connection with the oil extractor 5. The tail end is cut with a triangular notch to facilitate quick oil extraction. The diameter of the top end of the fuel pipe 9 is larger than that of the tail end, and the overall shape is conical. The pipe wall of the fuel pipe 9 is corrugated and has a certain elasticity, which can play a role in stabilizing the oil pressure in the pipe and ensure the stable and smooth operation of the fuel flow in the fuel pipe 9.
[0025] The fuel pipe 9 is made of materials with high pressure resistance, corrosion resistance, and oil resistance, such as: polyoxymethylene resin POM, PU rubber hose, etc.
[0026] During use, first open the top cover of the auxiliary oil port 8 on the fuel tank cover of the original vehicle fuel tank 1, and obliquely insert the fuel pipe 9 into the fuel tank 1, ensuring that there is a 2 cm gap between the tail end of the fuel pipe 9 and the bottom of the fuel tank 1 to ensure that the fuel can be preferentially supplied for the original vehicle. Fix the end of the oil extractor 5 with the anti - detachment retainer 10 and the sealing ring 12 to the auxiliary oil port 8 on the original vehicle fuel tank 1. Use the anti - detachment retainer 10 and the sealing ring 12 to ensure that the device does not leak oil during operation, and the angle can be adjusted arbitrarily during installation. The fuel parking heating device is connected to the fuel pipe 7 through the other oil outlet nozzle of the oil extractor 5 and fixed with a clamp. The fuel pipe 9 is only connected to the fuel tank 1 of the original vehicle. When the fuel parking heating device is in use, it uses a self - contained pump to provide power to extract oil from the fuel tank 1 and is not connected to the original vehicle fuel system. Therefore, the oil used by the fuel parking heating device and the oil used by the original vehicle engine do not affect each other.
[0027] It can be understood that the above specific description of the present invention is only for explaining the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the usage requirements, it is within the protection scope of the present invention.
Claims
1. An oil extraction device for equipment in the living area of a motorhome, characterized in that: It includes an oil extractor, an oil pipe and a fuel pipe. The oil extractor is in an overall L-shape. An oil nozzle is provided at one end of the oil extractor, which is connected to the oil pipe and the outside of the oil pipe is fixed by a clamp. The oil pipe is used to connect with the oil inlet of the fuel parking heater. An anti-detachment quick connector is provided at the other end of the oil extractor, which is used to connect with the auxiliary oil port on the original vehicle's fuel tank. A rubber sealing gasket is provided inside the port of the oil extractor connected to the auxiliary oil port, which is used to seal and sleeve with the fuel pipe. The fuel pipe passes through the auxiliary oil port and extends into the fuel tank. The tail end of the fuel pipe is left 2 cm high from the bottom of the fuel tank.
2. The oil extraction device for living area equipment used in a motorhome according to claim 1 is characterized in that: The outer wall of the oil outlet nozzle is provided with a stepped clamping interface, which is placed in the oil pipe and is clamped with the inner wall of the oil pipe.
3. The oil extraction device for living area equipment used in a motorhome according to claim 1 is characterized in that: The top end of the fuel pipe is conical and has a conical rubber clamp ring for sealing, which is convenient for fast connection with the oil extractor. The tail end of the fuel pipe is provided with a triangular notch to facilitate quick oil extraction.
4. The oil extraction device for living area equipment used in a motorhome according to claim 3 is characterized in that: The wall of the fuel pipe is corrugated.
5. The oil extraction device for living area equipment used in a motorhome according to claim 3 is characterized in that: The diameter of the top end of the fuel pipe is larger than the diameter of the rear end, and the fuel pipe is tapered as a whole.