Oil filling pipe inner wall cleaning device

Abstract

The invention discloses an oil filling pipe inner wall cleaning device, and relates to the field of automobile fuel systems, the oil filling pipe inner wall cleaning device comprises a steam supply mechanism, a cleaning box, a baffle plate, a connection control mechanism, a steam inlet mechanism, a compressed gas supply mechanism, a controller and a plurality of fixing mechanisms, the cleaning box is provided with an opening, and the baffle plate is used for closing or opening the opening; the multiple fixing mechanisms are sequentially arranged in the cleaning box, each fixing mechanism is used for fixing one oil filling pipe, the steam inlet mechanism comprises a steam main pipe and multiple steam branch pipes connected with the steam main pipe, and the steam main pipe and the multiple steam branch pipes are all arranged in the cleaning box; at least one end of the main steam pipe is connected with the steam supply mechanism through the connection control mechanism, all the branch steam pipes are connected with the compressed gas supply mechanism and used for extending into one oil filling pipe, and a discharging opening is formed in the cleaning box. According to the oil filling pipe inner wall cleaning device, a plurality of oil filling pipes can be conveniently cleaned at the same time, rapid cooling and airing of the oil filling pipes can be achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of automobile fuel systems, and in particular to a device for cleaning the inner wall of a fuel filling pipe. Background Art

[0002] In the current cleaning and maintenance of fuel system fuel pipes, steam cleaning equipment is widely used due to its high efficiency in decontamination, but its practical application has exposed limitations. Existing steam cleaning equipment is mostly designed with a single station, which cannot achieve the cleaning of multiple products at the same time, and the work efficiency is significantly lower. Steam cleaning uses the physical flushing and dissolving effects of high-temperature steam to remove dirt. However, the high temperature and high humidity cleaning environment causes a large amount of water vapor to remain on the inner wall of the fuel pipe. Existing steam cleaning equipment generally requires the fuel pipe to cool and dry naturally after cleaning, making it impossible for the fuel pipe to cool and dry quickly after steam cleaning. The long wait for drying and cooling prolongs the product turnover cycle and reduces work efficiency. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a fuel filler pipe inner wall cleaning device, which is convenient for cleaning multiple fuel filler pipes at the same time, can achieve rapid cooling and drying of the fuel filler pipes, and improve work efficiency.

[0004] To achieve the above object, the present invention provides the following solutions: The present invention provides a device for cleaning the inner wall of a fuel filler pipe, comprising a steam supply mechanism, a cleaning box, a baffle, a connection control mechanism, a steam inlet mechanism, a compressed gas supply mechanism, a controller, and a plurality of fixing mechanisms. The cleaning box is provided with an opening, the baffle is used to close or open the opening, a plurality of fixing mechanisms are sequentially arranged in the cleaning box, each of the fixing mechanisms is used to fix a fuel filler pipe, the steam inlet mechanism comprises a steam main pipe and a plurality of steam branches connected to the steam main pipe, the steam main pipe and the plurality of steam branches are all arranged in the cleaning box, at least one end of the steam main pipe is connected to the fuel filler pipe through the connection control mechanism The steam supply mechanism is connected, and each of the steam branch pipes is connected to the compressed gas supply mechanism. Each of the steam branch pipes is used to extend into one of the refueling pipes. The cleaning box is provided with an exhaust port, and the exhaust port is used to discharge the steam and compressed gas discharged from the refueling pipe. The steam supply mechanism, the connection control mechanism and the compressed gas supply mechanism are all connected to the controller. The controller can realize the connection or disconnection between the steam supply mechanism and the steam main pipe by controlling the connection control mechanism. The controller is used to control the connection or disconnection between the compressed gas supply mechanism and each of the steam branch pipes.

[0005] Preferably, the steam supply mechanism includes a steam box, a boiler, a heating rod and a steam outlet pipe. The boiler is arranged in the steam box, the heating rod is arranged in the boiler, and the steam box is provided with a water inlet and a steam outlet. The water inlet is connected to the boiler, and the water inlet is used to be connected to a water source. The steam outlet is connected to the upper part of the boiler through the steam outlet pipe, and the steam outlet is connected to the steam main pipe through the connection control mechanism, and the heating rod is connected to the controller.

[0006] Preferably, a water level monitoring component is provided in the boiler, a water inlet valve is provided at the water inlet, and both the water level monitoring component and the water inlet valve are connected to the controller.

[0007] Preferably, the steam supply mechanism has two steam outlets, the connection control mechanism includes two connecting pipes, each connecting pipe is provided with a first control valve, each first control valve is connected to the controller, one steam outlet is connected to one end of the steam main pipe through one connecting pipe, and the other steam outlet is connected to the other end of the steam main pipe through another connecting pipe.

[0008] Preferably, the steam supply mechanism has a steam outlet, the connection control mechanism includes a connecting pipe and a first control valve arranged on the connecting pipe, the first control valve is connected to the controller, the steam outlet is connected to one end of the steam main pipe through the connecting pipe, and the other end of the steam main pipe is a closed structure.

[0009] Preferably, the compressed gas supply mechanism includes a compressed gas supply component, a compressed gas main pipe and a plurality of compressed gas branch pipes, the compressed gas supply component is connected to one end of the compressed gas main pipe, a compressed gas branch pipe is provided on one side of each of the steam branch pipes, each of the compressed gas branch pipes is connected to the other end of the compressed gas main pipe, a second control valve is provided on the compressed gas main pipe, and the compressed gas supply component and the second control valve are both connected to the controller.

[0010] Preferably, the compressed gas supply component includes an air pump and an air cylinder, the air pump is connected to one end of the air cylinder, the other end of the air cylinder is connected to one end of the compressed gas main pipe, and the air pump is connected to the controller.

[0011] Preferably, the fixing mechanism includes a fixing plate and a clamping block, the fixing plate is provided in the cleaning box, the clamping block is adjustably mounted on the fixing plate, and the clamping block is used to clamp one end of the refueling pipe.

[0012] Preferably, the fixing mechanism includes two locking bolts, two arc-shaped holes are symmetrically provided on the fixing plate, the clamping block is located on the front side of the fixing plate, and two threaded holes are provided at the rear end of the clamping block. Each of the locking bolts passes through one of the arc-shaped holes and is installed in one of the threaded holes. The front end of the clamping block is provided with a clamping interface for clamping the refueling pipe.

[0013] Preferably, the opening is arranged on the front side of the cleaning box, and two vertical guide rails are respectively provided on both sides of the opening, and a slider is slidably installed on each of the vertical guide rails. The top of the cleaning box is provided with a strip opening matching the baffle structure, and the baffle extends into the cleaning box through the strip opening, and the two ends of the front side of the baffle are respectively connected to the two sliders. The top of the cleaning box is provided with a linear telescopic drive component located on the rear side of the strip opening, and the power output end of the linear telescopic drive component extends into the cleaning box and is connected to the rear side of the baffle, and the linear telescopic drive component is connected to the controller.

[0014] Compared with the prior art, the present invention has achieved the following technical effects: The fuel filler pipe inner wall cleaning device of the present invention comprises multiple fixed mechanisms, each of which is sequentially disposed within a cleaning box. The steam inlet mechanism comprises a steam main and multiple steam branches connected to the steam main. The steam main and multiple steam branches are disposed within the cleaning box. At least one end of the steam main is connected to a steam supply mechanism via a connection control mechanism, and each steam branch is connected to a compressed gas supply mechanism. During operation, a fuel filler pipe is first disposed on each fixed mechanism, and each steam branch extends into a fuel filler pipe. A controller controls the connection control mechanism to connect the steam supply mechanism with the steam main, allowing steam to enter the corresponding fuel filler pipe through the steam main and each steam branch. This allows simultaneous high-temperature steam cleaning of multiple fuel filler pipes, thereby improving work efficiency. After cleaning is complete, the controller controls the connection control mechanism to disconnect the steam supply mechanism from the steam main and connect the compressed gas supply mechanism to each of the steam branches. Compressed gas is then passed through each steam branch to the corresponding fuel filler pipe, thereby rapidly cooling and drying the fuel filler pipe, further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1A schematic structural diagram of a fuel filler pipe inner wall cleaning device provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the external structure of the steam supply mechanism in the fuel pipe inner wall cleaning device provided in the first embodiment of the present invention; Figure 3 A schematic diagram of the internal structure of the steam supply mechanism in the fuel pipe inner wall cleaning device provided in the first embodiment of the present invention; Figure 4 A schematic diagram of the internal structure of a boiler of a steam supply mechanism in a fuel pipe inner wall cleaning device provided in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the arrangement of the compressed gas supply mechanism, controller, discharge port, liquid discharge port, and steam inlet on the cleaning box of the fuel filler pipe inner wall cleaning device provided in Example 1 of the present invention; Figure 6 A first structural diagram of the steam main pipe, steam branch pipes, compressed gas branch pipes, and fixing mechanism in the fuel filler pipe inner wall cleaning device provided in the first embodiment of the present invention; Figure 7 This is a second structural schematic diagram of the steam main pipe, steam branch pipes, compressed gas branch pipes and fixing mechanism in the fuel filler pipe inner wall cleaning device provided in Example 1 of the present invention.

[0017] Explanation of the accompanying symbols: 1. Steam box; 2. Boiler; 3. Heating rod; 4. Water level monitoring component; 5. Water tank; 6. Water pump; 7. Water outlet pipe; 8. Water inlet; 9. Steam outlet; 10. First running wheel; 11. Cleaning box; 12. Baffle; 13. Vertical guide rail; 14. Linear telescopic drive component; 15. Refueling pipe; 16. Controller; 17. Second running wheel; 18. Discharge outlet; 19. Liquid discharge outlet; 20. Storing box; 21. Gas cylinder; 22. Steam inlet; 23. First control valve; 24. Steam main pipe; 25. Steam branch pipe; 26. Compressed gas branch pipe; 27. Fixing plate; 28. Arc-shaped hole; 29. ​​Block. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The purpose of the present invention is to provide a fuel filler pipe inner wall cleaning device, which is convenient for cleaning multiple fuel filler pipes at the same time, can achieve rapid cooling and drying of the fuel filler pipes, and improve work efficiency.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1: like Figure 1-Figure 7 As shown, this embodiment provides a device for cleaning the inner wall of a fuel filling pipe 15, including a steam supply mechanism, a cleaning box 11, a baffle 12, a connection control mechanism, a steam inlet mechanism, a compressed gas supply mechanism, a controller 16 and a plurality of fixing mechanisms. An opening is provided on the cleaning box 11, and the baffle 12 is used to close or open the opening. When the fuel filling pipe 15 needs to be installed, the opening is opened by the baffle 12. After the fuel filling pipe 15 is installed, the opening is closed by the baffle 12, and then steam cleaning is performed, and the high-temperature steam is blocked by the baffle 12 to prevent burns to the operator.

[0022] Multiple fixing mechanisms are sequentially arranged in the cleaning tank 11, each of which is used to fix a fueling pipe 15. The steam inlet mechanism includes a steam main pipe 24 and multiple steam branch pipes 25 connected to the steam main pipe 24. The steam main pipe 24 and the multiple steam branch pipes 25 are all arranged in the cleaning tank 11. At least one end of the steam main pipe 24 is connected to the steam supply mechanism via a connection control mechanism. Each steam branch pipe 25 is connected to the compressed gas supply mechanism and is configured to extend into a fueling pipe 15. The cleaning tank 11 is provided with an exhaust port 18 for discharging steam and compressed gas discharged from the fueling pipe 15. In this embodiment, the exhaust port 18 is located at the top of the cleaning tank 11. The steam supply mechanism, the connection control mechanism, and the compressed gas supply mechanism are all connected to a controller 16. The controller 16 can connect or disconnect the steam supply mechanism with the steam main pipe 24 by controlling the connection control mechanism. The controller 16 is configured to control the connection or disconnection between the compressed gas supply mechanism and each steam branch pipe 25.

[0023] During operation, a fueling pipe 15 is first installed on each fixing mechanism, and each steam branch pipe 25 extends into a fueling pipe 15. The controller 16 controls the connection control mechanism to connect the steam supply mechanism with the steam main pipe 24, allowing steam to enter the corresponding fueling pipe 15 through the steam main pipe 24 and each steam branch pipe 25. This allows high-temperature steam cleaning of multiple fueling pipes 15 to be performed simultaneously, thereby improving work efficiency. After cleaning is completed, the controller 16 controls the connection control mechanism to disconnect the steam supply mechanism from the steam main pipe 24 and control the connection between the compressed gas supply mechanism and each steam branch pipe 25. Compressed gas is then passed through each steam branch pipe 25 to the corresponding fueling pipe 15, thereby achieving rapid cooling and drying of the fueling pipe 15, further improving work efficiency.

[0024] The steam supply mechanism includes a steam box 1, a boiler 2, a heating rod 3 and a steam outlet pipe. The boiler 2 is arranged in the steam box 1, and the heating rod 3 is arranged in the boiler 2. The steam box 1 is provided with a water inlet 8 and a steam outlet 9. The water inlet 8 is connected to the boiler 2, and the water inlet 8 is used to connect to a water source. The steam outlet 9 is connected to the upper part of the boiler 2 through the steam outlet pipe. The steam outlet 9 is connected to the steam main pipe 24 through a connecting control mechanism, and the heating rod 3 is connected to the controller 16.

[0025] The boiler 2 is provided with a water level monitoring component 4, and a water inlet valve is provided at the water inlet 8. Both the water level monitoring component 4 and the water inlet valve are connected to the controller 16. The water level monitoring component 4 in this embodiment is a water level gauge.

[0026] The steam supply mechanism also includes a water tank 5, a water pump 6, a water inlet pipe and a water outlet pipe 7. The water tank 5 and the water pump 6 are both arranged in the steam box 1. The water inlet 8 is connected to one end of the water tank 5 through the water inlet pipe, and the other end of the water tank 5 is connected to the bottom of the boiler 2 through the water outlet pipe 7. The water pump 6 is arranged on the water outlet pipe 7, and the water pump 6 is connected to the controller 16.

[0027] During operation, the water level monitoring component 4 monitors the water level in the boiler 2. When the measured water level reaches the set minimum water level, the controller 16 controls the water inlet valve and the water pump 6 to open, thereby allowing water to flow into the boiler 2. When the measured water level reaches the set maximum water level, the controller 16 controls the water inlet valve and the water pump 6 to close.

[0028] In this specific embodiment, the steam supply mechanism has two steam outlets 9, and the connection control mechanism includes two connecting pipes, each connecting pipe is provided with a first control valve 23, and each first control valve 23 is connected to the controller 16. One steam outlet 9 is connected to one end of the steam main pipe 24 through a connecting pipe, and the other steam outlet 9 is connected to the other end of the steam main pipe 24 through another connecting pipe.

[0029] In this embodiment, the cleaning box 11 is provided with two steam inlets 22. One end of a steam main pipe 24 is connected to one steam inlet 22, and the other end of the steam main pipe 24 is connected to the other steam inlet 22. One connecting pipe is connected to one steam inlet 22, and the other connecting pipe is connected to the other steam inlet 22. A first control valve 23 is provided on one end of the connecting pipe near the steam inlet 22.

[0030] The compressed gas supply mechanism includes a compressed gas supply component, a compressed gas main pipe, and multiple compressed gas branch pipes 26. The compressed gas supply component is connected to one end of the compressed gas main pipe. A compressed gas branch pipe 26 is provided on one side of each steam branch pipe 25, and each compressed gas branch pipe 26 is connected to the other end of the compressed gas main pipe. A second control valve is provided on the compressed gas main pipe. The compressed gas supply component and the second control valve are both connected to the controller 16. The controller 16 can connect or disconnect the compressed gas main pipe and each steam branch pipe 25 by controlling the opening and closing of the second control valve.

[0031] In this embodiment, each compressed gas branch pipe 26 is provided with a one-way valve, which allows gas to pass from the compressed gas branch pipe 26 to the steam branch pipe 25 in one direction, preventing steam from flowing into the compressed gas branch pipe 26 when the steam branch pipe 25 performs steam injection.

[0032] The compressed gas supply component includes an air pump and an air cylinder 21. The air pump is connected to one end of the air cylinder 21, and the other end of the air cylinder 21 is connected to one end of the compressed gas main pipe, so that compressed gas can be introduced into the compressed gas main pipe. The air pump is connected to the controller 16, and the controller 16 is used to control the opening and closing of the air pump.

[0033] In this embodiment, a containing box 20 is provided on one side of the exterior of the cleaning box 11 , an air pump is provided in the containing box 20 , and an air storage cylinder 21 is provided on the upper portion of the containing box 20 .

[0034] like Figure 6 and Figure 7 As shown, the fixing mechanism includes a fixing plate 27 and a clamping block 29. The fixing plate 27 is disposed in the cleaning tank 11. The clamping block 29 is adjustably mounted on the fixing plate 27 and is used to clamp one end of the refueling pipe 15. In this embodiment, the clamping block 29 is perpendicular to the fixing plate 27.

[0035] The fixing mechanism also includes two locking bolts. Two arc-shaped holes 28 are symmetrically provided on the fixing plate 27. The clamping block 29 is located on the front side of the fixing plate 27. Two threaded holes are provided at the rear end of the clamping block 29. Each locking bolt passes through a arc-shaped hole 28 and is installed in a threaded hole. The front end of the clamping block 29 is provided with a clamping interface for clamping the refueling pipe 15.

[0036] In this embodiment, the clamping block 29 is detachably connected to the fixing plate 27 , and the clamping block 29 with different clamping interfaces can be replaced to adapt to fuel pipes 15 of different shapes, thereby improving the applicability of the device.

[0037] After the clamping block 29 is clamped to the upper end of the fuel filler pipe 15, the angle of the fuel filler pipe 15 can be adjusted by rotating the clamping block 29. Specifically, the locking bolts are turned outward so that they no longer press against the rear side of the fixing plate 27. At this time, each locking bolt can slide in an arc-shaped hole 28. After adjusting the angle of the clamping block 29 and the fuel filler pipe 15, the locking bolts are turned so that they press against the rear side of the fixing plate 27 to fix the clamping block 29.

[0038] Specifically, multiple steam branch pipes 25 are arranged in sequence from left to right at the lower part of the steam main pipe 24, and each steam branch pipe 25 is arranged vertically, each compressed gas branch pipe 26 is arranged vertically on the rear side of a steam branch pipe 25, and multiple fixed plates 27 are arranged in sequence from left to right in the cleaning box 11, and each fixed plate 27 is located on the rear side of a steam branch pipe 25 and is located below a compressed gas branch pipe 26.

[0039] like Figure 1 As shown, an opening is provided at the front side of the washing box 11, and two vertical guide rails 13 are provided on both sides of the opening. A slider is slidably mounted on each vertical guide rail 13. A strip opening matching the structure of the baffle 12 is provided at the top of the washing box 11. The baffle 12 extends into the washing box 11 through the strip opening, and the two ends of the front side of the baffle 12 are respectively connected to the two sliders. A linear telescopic drive component 14 is provided at the top of the washing box 11 and is located at the rear side of the strip opening. The power output end of the linear telescopic drive component 14 extends into the washing box 11 and is connected to the rear side of the baffle 12. The linear telescopic drive component 14 is connected to a controller 16. The controller 16 can enable the baffle 12 to open or close the opening on the front side of the washing box 11 by controlling the extension and contraction of the linear telescopic drive component 14.

[0040] In this embodiment, a drain port 19 is provided on one side of the bottom of the cleaning box 11. A drain valve is provided on the drain port 19, and the drain valve is connected to the controller 16. When the waste liquid at the bottom of the cleaning box 11 needs to be discharged, the controller 16 controls the drain valve to open.

[0041] In this embodiment, the linear telescopic driving component 14 is an electric push rod. The first control valve 23, the second control valve, the water inlet valve and the liquid discharge valve are all solenoid valves.

[0042] The controller 16 in this embodiment is arranged on one side of the upper end of the cleaning box 11. The controller 16 has a control panel, and a steam cleaning button and a cooling and drying button are provided on the control panel. After pressing the steam cleaning button, the controller 16 controls the first control valve 23 to open, the second control valve and the air pump to close, and high-temperature steam is passed into the refueling pipe 15; after pressing the cooling and drying button, the controller 16 controls the first control valve 23 to close, the second control valve and the air pump to open, and compressed gas is passed into the refueling pipe 15.

[0043] In this embodiment, a plurality of first running wheels 10 are provided at the bottom of the steam box 1, and a plurality of second running wheels 17 are provided at the bottom of the cleaning box 11, thereby making the steam box 1 and the cleaning box 11 easy to move.

[0044] The specific operation process is as follows: Controller 16 controls the linear telescopic drive component 14 to retract, driving baffle 12 upward to open the opening. A fuel pipe 15 is attached to each clamping block 29 through the opening. The angles of the clamping block 29 and fuel pipe 15 are adjusted so that the nozzle at the lower end of each steam branch pipe 25 is located at the center of a fuel pipe 15. Controller 16 controls the linear telescopic drive component 14 to extend, driving baffle 12 downward to close the opening. Controller 16 opens first control valve 23, allowing steam generated by boiler 2 to flow through the connecting pipe into steam main pipe 24 and then into each steam branch pipe 25, thereby simultaneously performing high-temperature steam cleaning on multiple fuel pipes 15. After cleaning is complete, controller 16 controls the first control valve 23 to close and the second control valve and air pump to open, allowing compressed gas to flow through the compressed gas main pipe into each compressed gas branch pipe 26. Then, it is sprayed into fuel pipe 15 through the nozzle at the lower end of each steam branch pipe 25, thereby simultaneously cooling and drying multiple fuel pipes 15.

[0045] Example 2: This embodiment differs from the first embodiment in the number of steam outlets 9, the number of connecting pipes, and the structure of the steam main pipe 24. Specifically, the steam supply mechanism has one steam outlet 9, the connection control mechanism includes a connecting pipe and a first control valve 23 disposed on the connecting pipe, the first control valve 23 being connected to the controller 16, the steam outlet 9 being connected to one end of the steam main pipe 24 via the connecting pipe, the other end of the steam main pipe 24 being a closed structure.

[0046] Specifically, a steam inlet 22 is provided on the cleaning box 11 , one end of a steam main pipe 24 is connected to the steam inlet 22 , a connecting pipe is connected to the steam inlet 22 , and a first control valve 23 is provided on one end of the connecting pipe close to the steam inlet 22 .

[0047] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A fuel pipe inner wall cleaning device, characterized in that: The invention comprises a steam supply mechanism, a cleaning box, a baffle, a connection control mechanism, a steam inlet mechanism, a compressed gas supply mechanism, a controller and a plurality of fixing mechanisms, wherein the cleaning box is provided with an opening, the baffle is used to close or open the opening, a plurality of fixing mechanisms are sequentially arranged in the cleaning box, each of the fixing mechanisms is used to fix a refueling pipe, the steam inlet mechanism comprises a steam main pipe and a plurality of steam branch pipes connected to the steam main pipe, the steam main pipe and the plurality of steam branch pipes are all arranged in the cleaning box, at least one end of the steam main pipe is connected to the steam supply mechanism through the connection control mechanism, each of the steam branch pipes is connected to the compressed gas supply mechanism, each of the steam branch pipes is used to extend into one of the refueling pipes, and the cleaning box is provided with an exhaust port, which is used to realize the steam and compressed gas discharged from the refueling pipe The gas is discharged, the steam supply mechanism, the connection control mechanism and the compressed gas supply mechanism are all connected to the controller, and the controller can realize the connection or disconnection between the steam supply mechanism and the steam main by controlling the connection control mechanism. The controller is used to control the connection or disconnection between the compressed gas supply mechanism and each of the steam branches; the compressed gas supply mechanism includes a compressed gas supply component, a compressed gas main and a plurality of compressed gas branches, the compressed gas supply component is connected to one end of the compressed gas main, and a compressed gas branch is provided on one side of each of the steam branches, and each of the compressed gas branches is connected to the other end of the compressed gas main, and a second control valve is provided on the compressed gas main, and the compressed gas supply component and the second control valve are both connected to the controller.

2. The fuel pipe inner wall cleaning device according to claim 1, characterized in that: The steam supply mechanism includes a steam box, a boiler, a heating rod and a steam outlet pipe. The boiler is arranged in the steam box, the heating rod is arranged in the boiler, and the steam box is provided with a water inlet and a steam outlet. The water inlet is connected to the boiler, and the water inlet is used to be connected to a water source. The steam outlet is connected to the upper part of the boiler through the steam outlet pipe, and the steam outlet is connected to the steam main pipe through the connection control mechanism, and the heating rod is connected to the controller.

3. The fuel pipe inner wall cleaning device according to claim 2, characterized in that: The boiler is provided with a water level monitoring component, and the water inlet is provided with a water inlet valve. Both the water level monitoring component and the water inlet valve are connected to the controller.

4. The fuel filler pipe inner wall cleaning device according to claim 2, characterized in that: The steam supply mechanism has two steam outlets, and the connection control mechanism includes two connecting pipes, each of which is provided with a first control valve, and each of the first control valves is connected to the controller. One steam outlet is connected to one end of the steam main pipe through one connecting pipe, and the other steam outlet is connected to the other end of the steam main pipe through another connecting pipe.

5. The fuel filler pipe inner wall cleaning device according to claim 2, characterized in that: The steam supply mechanism has a steam outlet, the connection control mechanism includes a connecting pipe and a first control valve arranged on the connecting pipe, the first control valve is connected to the controller, the steam outlet is connected to one end of the steam main pipe through the connecting pipe, and the other end of the steam main pipe is a closed structure.

6. The fuel filler pipe inner wall cleaning device according to claim 1, characterized in that: The compressed gas supply component includes an air pump and an air cylinder. The air pump is connected to one end of the air cylinder, the other end of the air cylinder is connected to one end of the compressed gas main pipe, and the air pump is connected to the controller.

7. The fuel filler pipe inner wall cleaning device according to claim 1, characterized in that: The fixing mechanism includes a fixing plate and a clamping block. The fixing plate is arranged in the cleaning box. The clamping block is adjustably mounted on the fixing plate. The clamping block is used to clamp one end of the refueling pipe.

8. The fuel filler pipe inner wall cleaning device according to claim 7, characterized in that: The fixing mechanism includes two locking bolts, two arc-shaped holes are symmetrically provided on the fixing plate, the clamping block is located on the front side of the fixing plate, and two threaded holes are provided at the rear end of the clamping block. Each of the locking bolts passes through one of the arc-shaped holes and is installed in one of the threaded holes. The front end of the clamping block is provided with a clamping interface for clamping the refueling pipe.

9. The fuel filler pipe inner wall cleaning device according to claim 1, characterized in that: The opening is arranged on the front side of the cleaning box, and two vertical guide rails are respectively provided on both sides of the opening, and a slider is slidably installed on each of the vertical guide rails. A strip opening matching the baffle structure is provided on the top of the cleaning box, and the baffle extends into the cleaning box through the strip opening, and the two ends of the front side of the baffle are respectively connected to the two sliders. A linear telescopic drive component is provided on the top of the cleaning box and located on the rear side of the strip opening. The power output end of the linear telescopic drive component extends into the cleaning box and is connected to the rear side of the baffle, and the linear telescopic drive component is connected to the controller.

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