Pod oil source vehicle

Abstract

The utility model discloses a pod oil source vehicle, relates to the field of oil supply vehicles, aims to solve the problems of single power source and single output oil pressure in the prior art, and adopts the technical scheme that besides an oil pump driven by an explosion-proof motor, the pod oil source vehicle is also provided with a manual pump, so that the pod oil source vehicle can be manually conveyed through the manual pump when power supply fails; the switching valve is arranged on the conveying oil line, the two outlets of the switching valve are connected with the high-pressure oil conveying line and the medium-low-pressure oil conveying line respectively, the multiple pressure reduction branches are arranged in the medium-low-pressure oil conveying line to reduce output oil pressure, and therefore different oil pressure output requirements are met. The partition plate is arranged in the oil tank to divide the space in the oil tank into a U shape, so that the retention time of oil in the oil tank can be effectively prolonged, oil circulation can be enhanced, the oil circulation speed is reduced, vortexes in the oil tank disappear, impurities are gradually precipitated, meanwhile, the oil temperature is reduced, and the functions of heat dissipation, degassing and precipitation of the oil tank are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel supply vehicles, in particular to a pod oil source vehicle. Background Technique

[0002] When kerosene pressurization supply is required for a pod and its accessories, an oil source vehicle is needed. Chinese Patent CN222256088U discloses an oil filling device, and the adopted technical solution is that it includes a fuel tank, the fuel tank is connected with a gear pump, the oil in the fuel tank is pumped out by the gear pump, and after being filtered by a filter and detected by a particle counter, it exits through an oil supply joint.

[0003] During the use of this prior art, there are problems of single output oil pressure and single power source. It cannot meet different oil pressure requirements, and when the gear pump cannot be used due to insufficient power, there is a lack of a backup power source input means.

[0004] During ground crew maintenance, in addition to supplying oil, a pod detection box is also needed to detect the pod, and the pod detection box requires DC27V direct current. The existing pod oil source vehicle does not have DC27V direct current and cannot meet the power consumption requirements of the pod detection box, thus bringing great inconvenience to ground crew maintenance operations. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a pod oil source vehicle, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model discloses a pod oil source vehicle, and the adopted technical solution is that it includes a vehicle body. There are universal wheels under the vehicle body. Inside the vehicle body, there are a fuel tank, a control device and a power supply. The fuel tank is connected with an oil pump, the oil pump is driven by an explosion-proof motor, the oil pump is connected with an oil outlet, the control device is a PLC controller, and there is also an operation panel assembly on the vehicle body. The PLC controller is electrically connected to the explosion-proof motor, the operation panel assembly and the power supply. The oil pump is connected with an oil delivery pipeline, and the oil delivery pipeline is connected with the inlet of a reversing valve. The first outlet of the reversing valve is connected with a high-pressure oil delivery pipeline, the high-pressure oil delivery pipeline is connected with a high-pressure oil supply joint, the second outlet is connected with a medium-low pressure oil delivery pipeline, the medium-low pressure oil delivery pipeline is connected with a medium-low pressure oil supply joint and a return pipe, and the return pipe is connected with the fuel tank. The high-pressure oil delivery pipeline can output oil liquid with a relatively high oil pressure, and the medium-low pressure oil delivery pipeline can output oil liquid with a medium-low pressure oil pressure, so as to meet diverse oil pressure requirements; a manual oil delivery pipeline is connected in parallel with the oil pump, and there is a manual pump on the manual oil delivery pipeline. The manual pump can manually output oil liquid for emergency when the oil pump cannot be used.

[0007] As a preferred technical solution of the present utility model, a suction three-way ball valve is connected between the inlet of the oil pump and the fuel tank. A first one-way valve is connected to the outlet of the oil pump, and the end of the manual oil pipeline is connected to the rear end of the first one-way valve. The first one-way valve can prevent the oil from flowing back.

[0008] As a preferred technical solution of the present utility model, on the manual oil pipeline, a sixth stop valve is connected between the inlet of the manual pump and the fuel tank, and a second one-way valve is connected to the rear end of the manual pump. When the manual pump needs to be used, the sixth stop valve is opened to connect the manual oil pipeline.

[0009] As a preferred technical solution of the present utility model, there is a valve block assembly on the oil pipeline. The valve block assembly includes an oil circuit block and a filter. There is a flow channel in the oil circuit block. The filter is installed on the oil circuit block, and the inlet of the filter is connected to the oil pump and the manual pump, the outlet of the filter is connected to the flow channel, the rear end of the oil circuit block is connected to the reversing valve, and the flow channel is connected to the reversing valve; an electromagnetic ball valve and a first overflow valve are also connected to the side of the oil circuit block. The electromagnetic ball valve is connected to an explosion-proof proportional overflow valve and then connected to a return pipe, and the return pipe is connected to the fuel tank; the first overflow valve is connected to the return pipe; the electromagnetic ball valve is electrically connected to the PLC controller. Connecting multiple valves directly to the oil circuit block can achieve an integrated effect, thereby greatly reducing the occupied space and making the overall structure more compact.

[0010] As a preferred technical solution of the present utility model, an oil return filter is also installed on the return pipe, and the oil return filter is connected to the oil return port of the fuel tank; a return port is also opened on the return pipe and connected to a sampling pipe, and there is a sampling valve on the sampling pipe; the return pipe is also connected to a regulating valve, and the front end of the regulating valve is connected to the flow channel of the oil circuit block. The oil return filter can filter the oil in the return pipe, and the sampling pipe is convenient for sampling the oil in the return pipe.

[0011] As a preferred technical solution of the present utility model, there is a third stop valve on the medium and low pressure oil pipeline. A first pressure reducing pipeline is connected to the front end of the third stop valve. There is a third overflow valve on the first pressure reducing pipeline. The inlet of the third overflow valve is connected to the reversing valve, and the third overflow valve is installed on the oil circuit block. The end of the first pressure reducing pipeline is connected to the return pipe. A fourth one-way valve is connected to the rear end of the third stop valve, and a second pressure reducing pipeline and the medium and low pressure oil supply joint are connected to the rear end of the fourth one-way valve. A fourth stop valve and a second overflow valve are installed on the second pressure reducing pipeline, and the end of the second pressure reducing pipeline is connected to the return pipe. Multiple pressure reducing pipelines can reduce the pressure of the oil and stabilize the pressure.

[0012] As a preferred technical solution of the present utility model, there is a partition in the fuel tank. The partition divides the interior of the fuel tank into a U-shaped structure, and the areas on both sides of the partition are respectively connected to the oil suction three-way ball valve and the return liquid pipe. The partition can increase the residence time of the refluxed oil liquid in the fuel tank, thereby eliminating vortices and precipitating impurities, and improving the quality of the oil output.

[0013] As a preferred technical solution of the present utility model, the return pipe and the return liquid pipe are bent downward in the fuel tank, and the end port has a chamfer, and the opening faces the inner wall of the fuel tank. This can make the oil liquid impact the inner wall of the fuel tank at a certain angle, preventing the sediment from being impacted by the return oil and causing the oil liquid to become turbid.

[0014] As a preferred technical solution of the present utility model, the high-pressure oil delivery pipeline includes a first stop valve. The front end of the first stop valve is connected to a reversing valve, and the rear end is connected to a third one-way valve. The rear end of the third one-way valve is connected to the high-pressure oil supply joint.

[0015] As a preferred technical solution of the present utility model, there is a 27V DC power output module in the vehicle body. This power module can convert the input of 220V AC voltage into an output of 27V DC voltage to meet the power consumption requirements of 27V DC electricity.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting a switching valve on the oil delivery pipeline, one of the two output ends of the switching valve is connected to the high-pressure oil delivery pipeline, and the other is connected to the medium-low pressure oil delivery pipeline. It can be switched to the corresponding oil delivery pipeline according to different oil pressure requirements, so as to meet diversified oil pressure outputs; A manual pump is set in parallel with the oil pump, which can manually deliver oil through the manual pump when the oil pump cannot be used due to power problems, so as to achieve an emergency effect. The medium-low pressure oil supply is through the same oil circuit. When different oil pressures need to be supplied at the same port, only the valve needs to be switched to change the oil supply pressure, and there is no need to disassemble the oil supply joint, which is more efficient.

[0017] Furthermore, by setting a partition in the fuel tank to divide the space in the fuel tank into a U shape, the residence time of the oil liquid in the fuel tank can be effectively extended, the oil liquid circulation can be strengthened, thereby reducing the oil liquid circulation speed, making the vortices in the fuel tank disappear and the impurities gradually precipitate. At the same time, it also helps to reduce the oil liquid temperature, so as to achieve the functions of fuel tank heat dissipation, degassing and precipitation.

[0018] Furthermore, by setting a 27V DC power output module, the input of 220V AC voltage can be converted into an output of 27V DC voltage to meet the power consumption requirements of 27V DC electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the oil circuit connection diagram of the present utility model;

[0020] Figure 2 is the schematic side view structure diagram of the present utility model Figure 1 ;

[0021] Figure 3 is the schematic side view structure diagram of the present utility model Figure 2 ;

[0022] Figure 4 is the schematic front view structure diagram of the present utility model;

[0023] Figure 5 is the schematic internal structure diagram of the present utility model;

[0024] Figure 6 is the schematic front view structure diagram of the fuel tank of the present utility model;

[0025] Figure 7 is the schematic side view structure diagram of the fuel tank of the present utility model;

[0026] Figure 8 is the schematic structure diagram of the fuel tank of the present utility model;

[0027] Figure 9 is the schematic internal structure diagram of the fuel tank of the present utility model;

[0028] Figure 10 is the schematic structure diagram of the valve block of the present utility model;

[0029] Figure 11 is the control schematic diagram of the present utility model.

[0030] In the figure: 1. Liquid level gauge; 2. Fuel tank; 201. Tank cover; 202. Fuel filling port; 203. Partition board; 3. Drain valve; 4. Suction oil three-way ball valve; 5. Suction oil hose; 6. Oil pump; 7. Explosion-proof motor; 8. Oil supply hose; 9. First check valve; 10. Filter; 11. Second check valve; 12. Electromagnetic ball valve; 13. Explosion-proof proportional relief valve; 14. Regulating valve; 15. First relief valve; 16. Directional valve; 17. First stop ball valve; 18. Third check valve; 19. First hose reel; 20. High-pressure oil supply joint; 21. Second stop ball valve; 22. Third stop ball valve; 23. Second relief valve; 24. Third relief valve; 25. Fourth check valve; 26. Fourth stop ball valve; 27. Second hose reel; 28. Medium and low-pressure oil supply joint; 29. Manual pump; 30. Explosion-proof liquid level switch; 31. Air filter; 32. Sampling valve; 33. Return oil filter; 34. Fifth stop ball valve; 35. First return interface; 36. Second return interface; 37. Valve block assembly; 3701. Oil circuit block; 38. Vehicle body; 39. Universal wheel; 40. Operation panel assembly; 41. Hoisting ring; 42. Sixth stop ball valve; 43. Return pipe; 44. Handle; 45. Return liquid pipe; 46. 27V power supply interface. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0032] As Figures 1 to 11 shown, the present utility model discloses a pod oil source vehicle. The technical solution adopted is that it includes a vehicle body 38, a universal wheel 39 is connected below the vehicle body 38, and a fuel tank 2 is arranged inside the vehicle body 38. As Figures 6 to 9 shown, the top surface of the fuel tank 2 is open, and a tank cover 201 is provided at the opening. A partition 203 is arranged inside the fuel tank 2. The partition 203 divides the inside of the fuel tank 2 into a U-shaped space. The two sides of the partition 203 are respectively an oil return area and an oil outlet area. In order to facilitate adding oil to the fuel tank 2, a fuel filling port 202 is provided on the tank cover 201. The fuel filling port 202 is opposite to the oil return area. In order to prevent large-particle dust from entering the fuel tank during refueling, the main body of the fuel filling port 202 adopts an air filter 31. When refueling is not required, the port of the air filter 31 is sealed by screwing on a threaded cover. In order to facilitate observing the oil level in the fuel tank 2, a liquid level gauge 1 is provided on the fuel tank 2. In order to prevent the oil level in the fuel tank 2 from being too high or too low, an explosion-proof liquid level switch 30 is also installed on the tank cover 201. In order to facilitate discharging the oil in the fuel tank 2, an oil discharge pipe is arranged at the bottom of the fuel tank 2, and an oil discharge valve 3 is installed on the oil discharge pipe. A control device, an operation panel assembly 40, and a power supply assembly are arranged on the vehicle body 38. The control device is a PLC controller. There are a buzzer, a warning light, and a display screen assembly on the operation panel assembly 40. In order to cope with emergencies, an emergency stop knob is also provided. The PLC controller is electrically connected to the explosion-proof liquid level switch 30, the buzzer, the warning light, the display screen assembly, the emergency stop knob, and the power supply assembly. The power supply assembly is electrically connected to an external power connection line.

[0033] To output the oil fluid, an oil suction three-way ball valve 4 is connected to the lower part of the side wall of the oil outlet area of the fuel tank 2. The rear end of the oil suction three-way ball valve 4 is connected to the oil inlet of the oil pump 6 through an oil suction hose 5. The oil pump 6 is driven by an explosion-proof motor 7, and the explosion-proof motor 7 is electrically connected to a PLC controller. The PLC controller is also electrically connected to a start-stop button installed on the operation panel assembly 40 to control the start and stop of the explosion-proof motor 7. The oil outlet of the oil pump 6 is connected to a first one-way valve 9 through an oil supply hose 8. The first one-way valve 9 is connected to a filter 10, and the oil fluid is filtered through the filter 10. To meet different oil pressure outputs, a reversing valve 16 is connected to the rear end of the filter 10. To be able to control the output oil pressure and at the same time prevent the oil pressure in the pipe from being too high in case of an abnormality, a first explosion-proof pressure sensor is connected to the pipe between the filter 10 and the reversing valve 16. A return liquid pipe 45 and a return pipe 43 are also connected through a branch pipe. Both the return liquid pipe 45 and the return pipe 43 are connected to the fuel tank 2. The branch pipe connecting the return liquid pipe 45 has a first branch pipe and a second branch pipe. An electromagnetic ball valve 12 and an explosion-proof proportional overflow valve 13 are installed on the first branch pipe, and a regulating valve 14 is installed on the second branch pipe. Among them, the electromagnetic ball valve 12 and the explosion-proof proportional overflow valve 13 are in series. A return oil filter 33 is installed on the return liquid pipe 45 to filter the return oil fluid. To be able to sample the return oil fluid, a sampling pipe is provided at the front end of the return oil filter 33, and a sampling valve 32 is installed on the sampling pipe. A first overflow valve 15 is installed on the third branch pipe connecting the return pipe 43, and the safety of the oil delivery pipeline can be improved through the first overflow valve 15. The first explosion-proof pressure sensor and the electromagnetic ball valve 12 are both electrically connected to the PLC controller. After the return pipe 43 and the return liquid pipe 45 are inserted into the fuel tank 2, they are bent downward, and the minimum distance from the pipe end to the bottom surface of the fuel tank 2 is three-quarters of the pipe outer diameter. The pipe end port has a chamfer, and the opening faces the inner wall of the fuel tank 2, which can make the oil fluid rush towards the inner wall of the fuel tank 2 at a certain angle, prevent the sediment from being impacted by the return oil and causing the oil fluid to be turbid, and contribute to the heat dissipation of the oil fluid. According to needs, the third port of the oil suction three-way ball valve 4 can be connected to an additional oil storage device through a hose to increase the total oil supply volume.

[0034] To make the oil delivery pipeline more compact, as Figure 10 shown, the filter 10, the electromagnetic ball valve 12, the first overflow valve 15, the third overflow valve 24, and the first explosion-proof pressure sensor are integrated on the oil circuit block 3701 of the valve block assembly 37. There is a first flow channel and a second flow channel in the oil circuit block 3701. The above-mentioned filter 10, the first explosion-proof pressure sensor, and each valve are directly installed on the oil circuit block 3701 through bolts, so that the inlets of the filter 10, the first explosion-proof pressure sensor, the electromagnetic ball valve 12, the first overflow valve 15, and the reversing valve 16 are connected to the first flow channel, and one outlet of the reversing valve 16 and the third overflow valve 24 are connected to the second flow channel. An explosion-proof proportional overflow valve 13 is also connected to the electromagnetic ball valve 12, and the outlet of the electromagnetic ball valve 12 is directly connected to the inlet of the explosion-proof proportional overflow valve 13.

[0035] The directional control valve 16 is of the manual type. Its outlet communicating with the third relief valve 24 is also connected to the medium-low pressure oil pipeline, and the other outlet is connected to the high-pressure oil pipeline. As Figure 1 shown, the high-pressure oil pipeline is connected with a first globe valve 17, a third check valve 18, and is connected with a first pressure gauge and a second explosion-proof pressure sensor, and then connected to the hose inlet of the first hose reel 19. The hose outlet is connected to the high-pressure oil supply connector 20. The second explosion-proof pressure sensor is electrically connected to the PLC controller. The oil circuit between the third check valve 18 and the first hose reel 19 is also connected with a seventh branch pipe. A second globe valve 21 is installed on the seventh branch pipe and is connected to the return pipe 43.

[0036] The medium-low pressure oil pipeline is connected with a third globe valve 22. The front end of the third globe valve 22 is connected to the return pipe 43 through a fourth branch pipe. A third relief valve 24 is installed on the fourth branch pipe. The rear end of the third globe valve 22 is connected to a fourth check valve 25. The rear end of the fourth check valve 25 is connected to the hose inlet of the second hose reel 27. The hose outlet is connected to the medium-low pressure oil supply connector 28. A second pressure gauge and a third explosion-proof pressure sensor are also installed between the fourth check valve 25 and the second hose reel 27, and are connected to the return pipe 43 through a fifth branch pipe and a sixth branch pipe. A fourth globe valve 26, a third pressure gauge, a fourth explosion-proof pressure sensor and a second relief valve 23 are installed on the fifth branch pipe. A fifth globe valve 34 is installed on the sixth branch pipe. The fourth branch pipe and the fifth branch pipe are the pressure-reducing branch pipes on the medium-low pressure oil pipeline. The oil pressure is reduced by the oil return, and the oil return flow is controlled by the relief valve, so that the oil at the medium-low pressure oil supply connector 28 can be more stable.

[0037] The sixth branch pipe and the seventh branch pipe are the return branch pipes during the pressure-holding detection. A first return interface 35 and a second return interface 36 are also provided at the front end of the oil return filter 33 of the return pipe 45 for connecting the high-pressure oil supply connector 20 and the medium-low pressure oil supply connector 28 for self-circulation.

[0038] To cope with the situation that the explosion-proof motor 7 cannot start due to a power supply failure, a manual oil pipeline is also connected to the fuel tank 2. One end of the manual oil pipeline is connected to the fuel tank 2, and the other end is connected between the first check valve 9 and the filter 10. A sixth globe valve 42, a manual pump 29 and a second check valve 11 are provided on the manual oil pipeline.

[0039] To facilitate reading the indication of the pressure gauge and operating the globe valve, as Figure 4 shown, all the pressure gauges and the regulating valve 14, the first globe valve 17, the second globe valve 21, the third globe valve 22, the fourth globe valve 26, the fifth globe valve 34 are integrated on the operation panel assembly 40. The PLC controller displays the detection value of the explosion-proof pressure sensor on the display screen assembly for unified reading and operation.

[0040] In order to output 27V DC power externally, a 27V DC power output module is also built in the vehicle body 38. The input end of the 27V DC power output module is electrically connected to the power supply assembly, and the output end is a 27V power interface 46, which is arranged on the side of the vehicle body 38, as Figure 3 shown.

[0041] In order to make the pod oil supply vehicle more convenient for transportation, lifting rings 41 are also arranged on both sides of the vehicle body 38, and a handle 44 is arranged at the end of the vehicle body 38.

[0042] The working principle of the present utility model is as follows:

[0043] Before use, conduct a pressure holding test on the oil circuit. Connect the high-pressure oil supply joint 20 to the second return interface 36. Check the liquid level in the fuel tank 2 through the liquid level gauge 1. If the liquid level is low, supplement the oil liquid into the fuel tank 2 through the fuel filling port 202. After connecting the self-circulation pipeline, open the first globe valve 17 and the second globe valve 21, and adjust the reversing valve 16 to the high-pressure oil delivery pipeline. Connect the power supply, press the start-stop button to start the explosion-proof motor 7, and pump the oil liquid in the fuel tank 2 through the oil pump 6 to make the oil liquid circulate in the pipeline. Adjust the opening degree of the regulating valve 14 until the pressure readings observed through the three explosion-proof pressure gauges or the display screen are not less than 1.5 times the working pressure, then stabilize the oil pressure. After stabilizing the pressure and circulating for 1 hour, observe whether the maximum pressure drop exceeds 0.05 MPa. If it does not exceed, the tightness of the high-pressure oil delivery pipeline meets the requirements, end the pressure holding test, close the valves in the reverse order, stop the operation of the explosion-proof motor 7, and turn off the power supply.

[0044] Connect the medium-low pressure oil supply joint 28 to the first return interface 35. After connecting the self-circulation pipeline, open the third globe valve 22, the fourth globe valve 26, and the fifth globe valve 34, and adjust the reversing valve 16 to the medium-low pressure oil delivery pipeline. Connect the power supply, press the start-stop button to start the explosion-proof motor 7, and pump the oil liquid in the fuel tank 2 through the oil pump 6 to make the oil liquid circulate in the pipeline. Adjust the opening degree of the regulating valve 14 until the readings observed through the three explosion-proof pressure gauges are not less than 1.5 times the working pressure, then stabilize the oil pressure. After stabilizing the pressure and circulating for 1 hour, observe whether the maximum pressure drop exceeds 0.05 MPa. If it does not exceed, the tightness of the medium-low pressure oil delivery pipeline meets the requirements, end the pressure holding test, close the valves in the reverse order, stop the operation of the explosion-proof motor 7, and turn off the power supply.

[0045] During transportation, it can be lifted by a crane using the hook to hang the lifting ring 41, or it can be pushed by the staff holding the handle 44 to transfer the pod oil source vehicle beside the pod. Adjust the opening degree of the regulating valve 14 to the set opening degree in the oil supply state. When high-pressure oil supply is required, connect the high-pressure oil supply joint 20 to the oil inlet of the pod. Open the first globe valve 17 and start the explosion-proof motor 7 for oil transfer. When the oil pressure is too high, the first overflow valve 15 opens to stabilize the oil pressure. During the oil supply process, the PLC controller detects the oil pressure in the pipeline through the explosion-proof pressure sensor. When the oil pressure exceeds the set value, the electromagnetic ball valve 12 is opened, and the explosion-proof proportional overflow valve 13 is opened by the oil pressure to release pressure in time.

[0046] When medium-pressure oil supply is required, connect the medium-low pressure oil supply joint 28 to the oil inlet of the pod. Open the third globe valve 22 and start the explosion-proof motor 7 for oil transfer. After the oil is depressurized and stabilized by the third overflow valve 24, medium-pressure oil supply is carried out.

[0047] When low-pressure oil supply is required, connect the medium-low pressure oil supply joint 28 to the oil inlet of the pod. Open the third globe valve 22 and the fourth globe valve 26, start the explosion-proof motor 7 for oil transfer. After the oil is depressurized and stabilized twice by the third overflow valve 24 and the second overflow valve 23, low-pressure oil supply is carried out.

[0048] The PLC controller detects the liquid level in the fuel tank 2 through the explosion-proof liquid level switch 30. If the liquid level is too low, the oil supply program is stopped, and audible and visual alarms are given through the buzzer and warning light. The staff refuels from the fuel filling port 202 according to the liquid level situation. When it reaches the upper limit, the staff is prompted to stop refueling through audible and visual alarms. During refueling, the oil can be poured into the fuel filling port 202 manually by holding an oil bucket, or after connecting the third port of the oil suction three-way ball valve 4 to a hose and putting the hose into the oil bucket, operate the oil suction three-way ball valve 4 to connect the oil bucket and the oil pump 6, start the oil pump 6, suck the oil in the oil bucket, and the sucked oil enters the fuel tank 2 through the first one-way valve 9, filter 10, regulating valve 14, and return oil filter 33, making the oil replenishment more labor-saving.

[0049] When a device (such as a pod detection box) needs to use 27V DC power, insert the device power interface into the 27V power interface 46, and the 27V DC power output power module can change the 220V AC input into 27V DC output to supply the device.

[0050] During regular maintenance, the box cover 201 can be opened, and the oil in the fuel tank 2 can be drained through the drain valve 3 for maintenance inside the fuel tank 2.

[0051] The circuit and mechanical connections involved in the present utility model are common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of tests, belonging to common general knowledge.

[0052] The 27V DC output power supply module used in this article and other components not detailed herein are all prior arts.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pod oil source vehicle, comprising a vehicle body (38), a universal wheel (39) being provided below the vehicle body (38), a fuel tank (2), a control device and a power supply being provided in the vehicle body (38), the fuel tank (2) being connected to a fuel pump (6), the fuel pump (6) being driven by an explosion-proof motor (7), the fuel pump (6) being connected to a fuel outlet, the control device being a PLC controller, and an operation panel assembly (40) being provided on the vehicle body (38), the PLC controller being electrically connected to the explosion-proof motor (7), the operation panel assembly (40) and the power supply, characterized in that: The oil pump (6) is connected to an oil pipeline, the oil pipeline is connected to an inlet of a reversing valve (16), a first outlet of the reversing valve (16) is connected to a high-pressure oil pipeline, the high-pressure oil pipeline is connected to a high-pressure oil supply connector (20), and a second outlet is connected to medium- and low-pressure oil pipelines, the medium- and low-pressure oil pipelines are connected to medium- and low-pressure oil supply connectors (28) and a return pipe (43), and the return pipe (43) is connected to the oil tank (2); the oil pump (6) is connected in parallel to a manual oil pipeline, and a manual pump (29) is provided on the manual oil pipeline.

2. The pod oil source vehicle according to claim 1, characterized in that: An oil suction three-way ball valve (4) is connected between the inlet of the oil pump (6) and the oil tank (2), a first one-way valve (9) is connected to the outlet of the oil pump (6), and the end of the manual oil delivery pipeline is connected to the rear end of the first one-way valve (9).

3. The pod oil source vehicle according to claim 1 or 2, characterized in that: On the manual oil delivery pipeline, a sixth stop ball valve (42) is connected between the inlet of the manual pump (29) and the oil tank (2), and a second one-way valve (11) is connected to the rear end of the manual pump (29).

4. The pod oil source vehicle according to claim 2, characterized in that: The oil pipeline has a valve block assembly (37), the valve block assembly (37) comprising an oil passage block (3701) and a filter (10), the oil passage block (3701) having a flow passage, the oil passage block (3701) being provided with the filter (10), the inlet of the filter (10) being connected to the oil pump (6) and the manual pump (29), the outlet of the filter (10) being connected to the flow passage, and the rear end of the oil passage block (3701) being connected to the reversing valve (16), the flow channel is connected to the reversing valve (16); the side of the oil circuit block (3701) is also connected to an electromagnetic ball valve (12) and a first overflow valve (15); the electromagnetic ball valve (12) is connected to an explosion-proof proportional overflow valve (13) and then connected to a return pipe (45); the return pipe (45) is connected to the oil tank (2); the first overflow valve (15) is connected to the return pipe (43); the electromagnetic ball valve (12) is electrically connected to the PLC controller.

5. The pod oil source vehicle according to claim 4, characterized in that: The liquid return pipe (45) is also provided with an oil return filter (33), and the oil return filter (33) is connected to the oil return port of the oil tank (2); the liquid return pipe (45) is also provided with a reflux interface, and is connected to a sampling pipe, and the sampling pipe is provided with a sampling valve (32); the liquid return pipe (45) is also connected to a regulating valve (14), and the front end of the regulating valve (14) is in communication with the flow channel of the oil circuit block (3701).

6. The pod fuel source vehicle according to claim 4, characterized in that: A third stop ball valve (22) is provided on the medium-low pressure oil delivery pipeline, the front end of the third stop ball valve (22) is connected to the first pressure reducing pipeline, a third overflow valve (24) is provided on the first pressure reducing pipeline, the inlet of the third overflow valve (24) is connected to the reversing valve (16), and the third overflow valve (24) is installed on the oil circuit block (3701), the end of the first pressure reducing pipeline is connected to the return pipe (43), the rear end of the third stop ball valve (22) is connected to the fourth check valve (25), the rear end of the fourth check valve (25) is connected to the second pressure reducing pipeline and the medium-low pressure oil supply joint (28), the second stop ball valve (26) and the second overflow valve (23) are installed on the second pressure reducing pipeline, and the end of the second pressure reducing pipeline is connected to the return pipe (43).

7. The pod oil source vehicle according to claim 4 or 5, characterized in that: A partition (203) is provided in the oil tank (2), and the partition (203) divides the oil tank (2) into a U-shaped structure. The areas on both sides of the partition (203) are respectively connected to the oil suction three-way ball valve (4) and the liquid return pipe (45).

8. The pod fuel source vehicle according to claim 4, characterized in that: The return pipe (43) and the liquid return pipe (45) are bent downward in the oil tank (2), and the end ports have cut corners and the openings face the inner wall of the oil tank (2).

9. The pod fuel source vehicle according to claim 1, characterized in that: The high-pressure oil delivery pipeline comprises a first stop ball valve (17), the front end of the first stop ball valve (17) being connected to the reversing valve (16), the rear end of the first stop ball valve (17) being connected to the third one-way valve (18), the rear end of the third one-way valve (18) being connected to the high-pressure oil supply connector (20).

10. The pod fuel source vehicle according to claim 1, characterized in that: The vehicle body (38) has a 27V DC output power module.

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