A multifunctional electronic oil gun

Abstract

The present application discloses a multifunctional electronic fuel gun, comprising a gun body, an oil filling portion and a grip portion formed on the gun body, the oil filling portion forming an oil pipe that allows oil to flow, a valve assembly disposed within the oil pipe, the valve assembly comprising a valve core disposed within the oil pipe and an adjustment shaft connected to the valve core, the adjustment shaft being connected to the grip portion via a connector; a control box disposed within the oil filling portion, a flow metering device disposed within the oil pipe, the flow metering device monitoring the oil filling flow of the electronic fuel gun in real time and transmitting a flow signal to the control box for display; the control box being connected to the connector, and when the oil filling amount is consistent with the target oil filling amount, the control box adjusting the movement of the adjustment shaft via the connector; the control box being provided with a display, a processor, a reader / writer, and a power supply group, the reader / writer being used to identify and read and write fuel cards. The electronic fuel gun provided by the present application implements fuel quantity metering display and user identity recognition, realizes automated control of vehicle refueling operations, and assists in vehicle information management.

Description

Technical Field

[0001] The present application relates to the technical field of fueling guns, and in particular to a multifunctional electronic fueling gun that integrates fuel metering display control and vehicle identity automatic recognition and management. Background Art

[0002] Commonly used fuel pumps rely on the supporting facilities of fixed gas stations. They only function as valves to open and close, and cannot measure the volume of oil flowing out of the pump. If this is required, a separate counting device is required. Therefore, existing fuel pumps have significant limitations and are not suitable for applications without gas station support.

[0003] As market demand increases, the number of temporary gas stations is rapidly increasing. However, existing gas pumps must be used with supporting facilities at gas stations, which increases the cost of temporary gas station construction. Furthermore, existing gas pumps cannot achieve quantitative refilling or vehicle identification, resulting in inadequate vehicle management.

[0004] Therefore, the gas pumps used in the market only have the functions of refueling and measuring the amount of oil. During use, they still have certain functional defects, such as: 1. After the gas pump measures the amount of oil, the start and stop of the gas pump is still controlled by the staff, and the refueling process is highly dependent on people; 2. It is impossible to identify the user's identity, and vehicle information management is not in place.

[0005] Therefore, it is urgent to propose a new technical solution to solve the problems existing in the existing technology. Summary of the Invention

[0006] The present application provides a multifunctional electronic fuel gun to solve the problem of high operator involvement during the use of electronic fuel guns in the prior art. The multifunctional electronic fuel gun provided by the present application can improve the level of vehicle information management.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] The present application provides a multifunctional electronic oil gun, comprising a gun body, an oil filling portion and a grip portion formed on the gun body, the oil filling portion forming an oil pipe allowing oil to flow, a valve assembly disposed within the oil pipe, the valve assembly being used to adjust the on / off state of the oil pipe, the valve assembly comprising a valve core disposed within the oil pipe and an adjusting shaft connected to the valve core, the adjusting shaft being connected to the grip portion via a connector;

[0009] The oil filling part is provided with a control box, and a flow metering device connected to the control box signal is provided in the oil pipe. The flow metering device monitors the oil filling flow of the electronic oil gun in real time and sends the monitored flow signal to the control box. The control box displays the oil filling amount according to the flow signal.

[0010] The control box is connected to the connecting piece, and when the oil injection amount is consistent with the target oil injection amount, the control box adjusts the movement of the adjustment shaft through the connecting piece;

[0011] The control box is provided with a display, a processor, a reader / writer and a power supply group. The reader / writer is used to read and write information cards that match it.

[0012] Furthermore, in the above technical solution, one end of the oil pipe forms an oil inlet end, and the other end forms an oil outlet end. The inlet end is connected to the oil storage tank, and the outlet end is connected to the oil outlet pipe.

[0013] Furthermore, the flow metering device includes a turbine flowmeter and a Hall effect sensor. The turbine flowmeter is arranged inside the oil pipe near the inlet end, the turbine flowmeter is arranged at the output end of the valve assembly, and the Hall effect sensor is arranged on the gun body. The flow metering device collects flow information through the Hall effect principle.

[0014] Furthermore, the control box includes a lower cover and an upper cover adapted to the lower cover, and the upper cover and the lower cover are buckled together to form an inner cavity, in which the display, processor, reader and power supply group are arranged.

[0015] Furthermore, the display includes a display circuit board and a display screen arranged on the display circuit board, and the upper cover is provided with a mounting hole adapted to the display screen.

[0016] Furthermore, the processor includes a main circuit board, a central processing module arranged on the main circuit board, a knob encoder and a light guide column.

[0017] Furthermore, the knob encoder has an axis core, one end of which passes through the upper cover and is connected to the knob. The knob forms a hand-grip portion for adjusting the axis core. The axis core is rotated by the knob to realize the compilation and conversion of the signal. The knob encoder includes a signal output unit.

[0018] Furthermore, the central processing module includes a signal transmission unit, a processing unit and a start-stop control unit. The signal transmission unit receives a flow signal from the flow metering device and sends the flow signal to the processing unit. The processing unit processes the flow signal into an oil filling amount value and outputs it to the display, and displays it through the display screen.

[0019] Furthermore, the signal output unit of the knob encoder outputs the compiled and converted signal to the processing unit, and the processing unit controls the oil injection amount according to the signal. When the actual oil injection amount is consistent with the target oil injection amount represented by the signal, the processing unit outputs an action control signal to the connecting part through the signal transmission unit, so that the electronic oil gun interrupts the oil injection.

[0020] Furthermore, the start-stop control unit is used to receive a signal from the refueling control system and send the signal to the processing unit. The processing unit outputs an action control signal to the connecting member according to the signal, so that the electronic oil gun stops refueling.

[0021] Furthermore, the refueling control system is connected to one or more electronic fuel gun signals, and the refueling control system is used to control the opening and closing actions of the valve assembly of each electronic fuel gun, thereby controlling the oil injection amount of each electronic fuel gun.

[0022] Furthermore, an antenna is provided on the main circuit board, and the central processing module also includes a wireless communication unit. The wireless communication unit receives the signal sent by the refueling control system through the antenna and sends the signal to the processing unit. The processing unit controls the oil filling amount of the electronic oil gun according to the signal.

[0023] Furthermore, the processing unit includes a signal conditioning component, and the signal conditioning component includes a pulse signal sampling circuit. The signal conditioning component is used to amplify and filter the flow signal output by the flow metering device.

[0024] Furthermore, the signal transmission unit includes a signal receiving area and a signal output area.

[0025] Furthermore, a light guide column is provided on the main circuit board, and a mounting hole adapted to the light guide column is provided on the upper cover.

[0026] Furthermore, an information card compatible with the reader / writer stores vehicle management information, including vehicle identification information and refueling guarantee information. The reader / writer includes a card reader / writer module and an IC card. The card reader / writer module reads the vehicle management information of the refueled vehicle from the information card, and the IC card is used to update and store the vehicle management information read by the card reader / writer module.

[0027] Furthermore, the card reader / writer module is connected to the processor signal, and the processor obtains a signal from the card reader / writer module and controls the oiling action of the electronic oil gun according to the obtained signal.

[0028] Furthermore, one end of the connecting member is connected to the adjusting shaft, and the other end is connected to the driving component. The connecting member adjusts the movement of the adjusting shaft under the drive of the driving component. The adjusting shaft drives the valve core to move under the action of the connecting member to achieve the connection or blocking of the oil channel in the oil pipe.

[0029] Furthermore, the driving component is connected to the processor, and when the processor sends a signal to the driving component, the driving component adjusts the action of the connecting member according to the signal.

[0030] Furthermore, the power supply group includes a battery module, and the battery module is used to supply power to the display, processor and reader.

[0031] Compared with the existing technology, this application has the following beneficial effects:

[0032] 1. The multifunctional electronic fuel gun provided in the present application comprises a fuel filling portion and a grip portion. An oil pipe is formed on the fuel filling portion. A valve assembly in the oil pipe can control the opening and closing of the oil channel. A flow metering device is also provided in the oil pipe. A control box connected to the flow metering device is provided on the fuel filling portion. The control box can obtain a flow signal monitored by the flow metering device in real time, obtain a real-time fuel injection amount based on the flow signal, and display the fuel injection amount. Therefore, the electronic fuel gun implements fuel injection amount measurement and monitoring. On this basis, the control box of the multifunctional electronic fuel gun provided in the present application is also connected to the valve assembly and can adjust the operation of the valve assembly according to the real-time fuel injection amount. When the fuel injection amount reaches the standard, the control box controls the valve assembly to block the oil channel and stop fuel injection, thereby reducing the workload of the operator. Furthermore, the control box is also provided with a reader / writer, which can read and write information cards to complete the reading of vehicle identity information and fueling-related information, such as vehicle license plate and fueling guarantee information. Therefore, the multifunctional electronic fuel gun of this application can achieve automated control of vehicle refueling operations, assist in vehicle information management, reduce operator involvement in the refueling process, and reduce labor costs. Compared with existing fuel guns, the electronic fuel gun provided by this application reduces dependence on gas station supporting facilities and can basically complete refueling operations and vehicle information management independently. Using the electronic fuel gun provided by this application, temporary gas stations can be quickly established, reducing gas station construction facility costs, quickly refueling a variety of vehicles, realizing quantitative refueling and vehicle identity recognition, and improving the level of vehicle information management.

[0033] 2. The multifunctional electronic fuel guns provided in this application can work simultaneously. Multiple electronic fuel guns are assigned to a refueling control system and are controlled by the refueling control system. The refueling pipe lines are independent of each other. Multiple electronic fuel guns can be used by multiple users to refuel at the same time. User information, flow information, start-stop instructions, etc. are exchanged with the refueling control system through wireless communication. No human intervention is required, and refueling quantitative control and start-stop control can be achieved by operating the electronic fuel guns.

[0034] 3. The flow metering device of the multifunctional electronic oil gun provided in this application includes a turbine flowmeter and a Hall effect sensor. The flow metering device collects flow information through the Hall effect principle, avoids direct contact between the circuit and the oil circuit, and enhances the safety of use.

[0035] 4. The multifunctional electronic oil gun provided in this application is provided with a knob encoder, and the staff can manually operate the working process of the electronic oil gun through the knob encoder, realize human intervention operation, and realize the use range and flexibility of the electronic oil gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, based on the technical concepts and exemplary drawings disclosed in this application, those skilled in the art are able to easily make routine adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, and dimensional ratios of certain units (components).

[0037] Figure 1 This is a schematic structural diagram of an electronic oil gun provided by the present application in one embodiment;

[0038] Figure 2 This is a schematic diagram of the structure of the electronic oil gun provided by the present application in one embodiment, wherein the control box is separated from the gun body;

[0039] Figure 3 This is a schematic diagram of the disassembly of the structure of the control box on the electronic oil gun provided by the present application in one embodiment;

[0040] Figure 4 This is a schematic block diagram of the functional principles of the electronic oil gun provided by the present application in one embodiment.

[0041] Description of reference numerals:

[0042] 1. Gun body; 11. Oil pipe; 12. Oil outlet pipe;

[0043] 2. Valve assembly; 21. Adjusting shaft; 22. Connecting piece;

[0044] 3. Control box; 31. Lower cover; 32. Upper cover; 33. Display; 331. Display screen; 34. Processor; 341. Main circuit board; 342. Antenna; 343. Central processing module; 344. Signal receiving area; 345. Signal output area; 346. Processing unit; 347. Signal conditioning component; 348. Start / stop control unit; 349. Wireless communication unit; 35. Rotary encoder; 351. Rotary knob; 36. Light guide; 37. Reader / writer; 371. Card reader / writer module; 372. IC card; 38. Power supply unit;

[0045] 4. Flow metering device;

[0046] 5. Fueling control system;

[0047] 6. Information card;

[0048] 7. Battery compartment cover;

[0049] 8. Partition;

[0050] 9. Waterproof strips;

[0051] 10. Booth. DETAILED DESCRIPTION

[0052] The present application will be further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0053] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0054] Terms such as "upper," "lower," "left," "right," and "center" used in this application are generally intended to facilitate intuitive understanding when compared with the accompanying drawings and are not intended to be absolute limitations on positional relationships in actual products. Changes to these relative positional relationships are considered within the scope of this application without departing from the technical concepts disclosed herein.

[0055] Example 1

[0056] The present application provides a multifunctional electronic fuel gun that integrates fuel metering display control and vehicle identity automatic recognition management. Figure 1 The gun body 1 includes an oil filling portion and a gripping portion formed thereon. The oil filling portion forms an oil pipe 11 that allows oil to flow. A valve assembly 2 is disposed within the oil pipe 11. The valve assembly 2 is used to adjust the on / off state of the oil pipe 11. The valve assembly 2 includes a valve core disposed within the oil pipe 11 and an adjusting shaft 21 connected to the valve core. The adjusting shaft 21 is connected to the gripping portion via a connector 22. The valve assembly 2 can have various structural forms and can be a ball valve, butterfly valve, or other valve component that can be used to open and close a pipeline. The embodiments of the present application do not impose excessive restrictions on the valve assembly 2.

[0057] In order to achieve flow metering and automatic refueling control, a control box 3 can be set in the oil filling part. A flow metering device 4 connected to the control box 3 signal is set in the oil pipe 11. The flow metering device 4 monitors the oil filling flow of the electronic oil gun in real time and sends the monitored flow signal to the control box 3. The control box 3 displays the oil filling amount according to the flow signal.

[0058] As mentioned above, the adjustment shaft 21 is connected to the grip portion via the connector 22. To achieve automatic control of the valve assembly 2, the control box 3 can be connected to the connector 22. When the oil injection amount is consistent with the target oil injection amount, the control box 3 adjusts the movement of the adjustment shaft 21 through the connector 22. Therefore, the significance of the connector 22 is to play a control role. As the controlled object, it receives the control signal and adjusts the opening and closing of the valve assembly 2.

[0059] In one embodiment, the control box 3 is provided with a display 33, a processor 34, a reader 37 and a power supply group 38, wherein the reader 37 is used to read and write the information card 6. Figure 3 The card reader / writer module 371 of the reader / writer 37 in the control box 3 is contactlessly connected to the IC card 372 through a partition 8. A waterproof tape 9 is provided on the edge of the IC card 372. The IC card 372 is installed on the card holder 10, and the card holder 10 is connected to the lower cover 31. An installation compartment for the power supply group 38 is reserved in the lower cover 31. The power supply group 38 can be a lithium battery, and the installation compartment is equipped with a battery compartment cover 7.

[0060] Therefore, the multifunctional electronic fuel gun provided by the present application can display the fuel injection amount in real time and automatically control the opening and closing of the valve assembly 2 through the control box 3. In addition, the electronic fuel gun can read and write to the information card 6 through the reader / writer 37 to complete the reading of the vehicle's identity information and fuel card-related information. Therefore, the multifunctional electronic fuel gun provided by the present application can realize the automated control of vehicle refueling operations and assist in the information management of vehicles.

[0061] See also Figure 2One end of the oil pipe 11 forms the inlet end of the oil, and the other end forms the outlet end of the oil. The inlet end is connected to the oil storage tank, and the outlet end is connected to the oil outlet pipe 12.

[0062] In one embodiment, the flow metering device 4 may include a turbine flowmeter and a Hall effect sensor. A turbine flowmeter is provided inside the oil pipe 11 near the inlet end, the turbine flowmeter is provided at the output end of the valve assembly 2, and a Hall effect sensor is provided on the gun body 1. The flow metering device 4 collects flow information through the Hall effect principle, avoids direct contact between the circuit and the oil circuit, and enhances safety of use.

[0063] In one embodiment, see Figure 3 The control box 3 includes a lower cover 31 and an upper cover 32 adapted to the lower cover 31. The upper cover 32 and the lower cover 31 are buckled together to form an inner cavity. The inner cavity is provided with a display 33, a processor 34, a reader / writer 37 and a power supply group 38. The display 33 includes a display circuit board and a display screen 331 provided on the display circuit board. The upper cover 32 is provided with a mounting hole adapted to the display screen 331. The display screen 331 can be an OLED display screen 331 (in one application example, the display screen 331 has a size of 2.42 inches, is made of a high-brightness PM OLED, has a resolution of 128*64, and supports software brightness adjustment).

[0064] The processor 34 includes a main circuit board 341 , a central processing module 343 disposed on the main circuit board 341 , a knob encoder 35 and a light guide 36 .

[0065] In one embodiment, the knob encoder 35 has an axis core, one end of which passes through the upper cover 32 and is connected to the knob 351. The knob 351 forms the hand-grip portion of the axis core of the adjustment shaft 21. The axis core is rotated by the knob 351 to realize the compilation and conversion of the signal. The knob encoder 35 includes a signal output unit, and the knob encoder 35 sends the compiled and converted signal to the central processing module 343 through the signal output unit.

[0066] In one embodiment, a central processing module 343 (MCU, using an ARM Cotex-M0+ ultra-low-power core capable of supporting secondary development) includes a signal transmission unit and a processing unit 346. The signal transmission unit receives a flow signal from the flow metering device 4 and sends the flow signal to the processing unit 346. The processing unit 346 processes the flow signal into a numerical value for the oil injection amount and outputs it to the display 33 for display on the display screen 331. In other words, the electronic oil gun provided in this application realizes a real-time numerical display of the oil injection amount, and the conversion from the flow signal to the oil injection value can be accomplished using electrical components such as an analog-to-digital converter.

[0067] In one embodiment, the signal output unit of the rotary encoder 35 outputs the compiled and converted signal to the processing unit 346. The processing unit 346 controls the oil injection amount based on the signal. When the actual oil injection amount matches the target oil injection amount indicated by the signal, the processing unit 346 outputs an action control signal to the connector 22 via the signal transmission unit, causing the electronic oil gun to stop injecting oil. In this embodiment, a worker can control the oil injection of the electronic oil gun by operating the rotary encoder 35, achieving human intervention and greater flexibility.

[0068] In one embodiment, the processing unit 346 further includes a signal conditioning component 347, which includes a pulse signal sampling circuit and is used to amplify and filter the flow signal output by the flow metering device 4. The signal transmission unit includes a signal receiving area 344 and a signal output area 345. The power supply assembly 38 includes a battery module, which is used to power the display 33, processor 34, and reader 37. The battery module can be a rechargeable lithium battery.

[0069] In one embodiment, a light guide column 36 is provided on the main circuit board 341, and a mounting hole adapted for the light guide column 36 is provided on the upper cover 32. The light guide column 36 can function as an indicator light.

[0070] In one embodiment, an information card 6 compatible with the reader / writer stores vehicle management information. This information may include vehicle identification information and refueling guarantee information. The reader / writer 37 within the control box 3 includes a card reader / writer module 371 and an IC card 372. The card reader / writer module 371 reads the vehicle management information of the refueled vehicle from the information card, while the IC card 372 updates and stores the vehicle management information read by the card reader / writer module 371. The card reader / writer module 371 is signal-connected to the processor 34, which receives signals from the card reader / writer module 371 and controls the refueling operation of the electronic fuel gun based on the signals. In this embodiment, the card reader / writer module 371 can read and identify user information, enabling the informatization of vehicle management. The card reader / writer module 371 is low-cost, easy to use, reliable, versatile, and compact. It can read and identify the information card 6 and supports both contactless and contactless card types.

[0071] In one embodiment, one end of the connector 22 is connected to the adjustment shaft 21, and the other end is connected to the drive component. Driven by the drive component, the connector 22 adjusts the movement of the adjustment shaft 21. The adjustment shaft 21, under the action of the connector 22, drives the valve core to connect or block the oil passage within the oil pipe 11. The drive component is connected to the processor 34. When the processor 34 sends a signal to the drive component, the drive component adjusts the movement of the connector 22 based on the signal. The connector 22 effectively transmits power, acting as an actuator of the control box 3 to adjust the movement of the valve assembly 2.

[0072] Example 2

[0073] This embodiment provides a multifunctional electronic oil gun, which is different from the multifunctional electronic oil gun provided in the above-mentioned embodiment 1 in that the central processing module 343 (MCU, ARM Cotex-M0+ ultra-low power core that can support secondary development) of the processor 34 in the control box 3 of the multifunctional electronic oil gun provided in this application not only includes a signal transmission unit and a processing unit 346, but also includes a start-stop control unit 348.

[0074] The start-stop control unit 348 of the central processing module 343 of this embodiment is used to receive signals from the refueling control system 5 and send the signals to the processing unit 346. The processing unit 346 outputs an action control signal to the connecting member 22 according to the signals, so that the electronic fuel gun stops refueling.

[0075] The main circuit board 341 of the processor 34 may also be provided with an antenna 342 for receiving signals. The central processing module 343 also includes a wireless communication unit 349 (a wireless transceiver operating in the 470MHz to 510MHz frequency band and supporting modulation methods such as LoRa and (G)FSK). The wireless communication unit 349 receives signals from the refueling control system 5 via the antenna 342 and transmits the signals to the processing unit 346. The processing unit 346 controls the fuel injection amount of the electronic fuel gun based on the signals. The refueling control system 5 can be connected to one or more electronic fuel gun signals. The refueling control system 5 is used to control the opening and closing of the valve assembly 2 of each electronic fuel gun, thereby controlling the fuel injection amount of each electronic fuel gun. In this embodiment, the refueling control system 5 can simultaneously control the operation of multiple electronic fuel guns, enabling the simultaneous provision of refueling services to multiple users and improving service efficiency.

[0076] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0077] The present application has been described in detail and in general terms through a general description and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations may be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions resulting from these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. A multifunctional electronic oil gun, characterized in that: The gun body comprises an oil filling portion and a grip portion formed on the gun body, the oil filling portion forming an oil pipe allowing oil to flow, a valve assembly provided in the oil pipe, the valve assembly being used to adjust the on / off state of the oil pipe, the valve assembly comprising a valve core provided in the oil pipe and an adjusting shaft connected to the valve core, the adjusting shaft being connected to the grip portion via a connecting piece; The oil filling part is provided with a control box, and a flow metering device connected to the control box signal is provided in the oil pipe. The flow metering device monitors the oil filling flow of the electronic oil gun in real time and sends the monitored flow signal to the control box. The control box displays the oil filling amount according to the flow signal. The control box is connected to the connecting piece, and when the oil injection amount is consistent with the target oil injection amount, the control box adjusts the movement of the adjustment shaft through the connecting piece; The control box is provided with a display, a processor, a reader / writer and a power supply group, and the reader / writer is used to read and write information cards matched therewith; The control box includes a lower cover and an upper cover adapted to the lower cover, wherein the upper cover and the lower cover are buckled together to form an inner cavity, and the display, processor, reader / writer and power supply group are arranged in the inner cavity; The display comprises a display circuit board and a display screen arranged on the display circuit board, and the upper cover is provided with a mounting hole adapted to the display screen; The processor includes a main circuit board, a central processing module arranged on the main circuit board, a knob encoder and a light guide column; The knob encoder has a shaft core, one end of which passes through the upper cover and is connected to the knob. The knob forms a hand-grip portion for adjusting the shaft core. The shaft core is rotated by the knob to achieve signal compilation and conversion. The knob encoder includes a signal output unit. The central processing module includes a signal transmission unit, a processing unit, and a start-stop control unit. The signal transmission unit receives a flow signal from the flow metering device and sends the flow signal to the processing unit. The processing unit processes the flow signal into an oil filling amount value and outputs it to the display, which is then displayed on the display screen. The signal output unit of the knob encoder outputs the compiled and converted signal to the processing unit, and the processing unit controls the oil injection amount according to the signal. When the actual oil injection amount is consistent with the target oil injection amount represented by the signal, the processing unit outputs an action control signal to the connecting part through the signal transmission unit, so that the electronic oil gun stops injecting oil.

2. The multifunctional electronic oil gun according to claim 1, characterized in that: One end of the oil pipe forms an oil inlet, and the other end forms an oil outlet. The inlet is connected to the oil tank, and the outlet is connected to the oil outlet pipe. The flow metering device includes a turbine flowmeter and a Hall effect sensor. The turbine flowmeter is arranged inside the oil pipe near the inlet end, the turbine flowmeter is arranged at the output end of the valve assembly, and the Hall effect sensor is arranged on the gun body. The flow metering device collects flow information based on the Hall effect principle.

3. The multifunctional electronic oil gun according to claim 1, characterized in that: The start-stop control unit is used to receive a signal from the refueling control system and send the signal to the processing unit. The processing unit outputs an action control signal to the connecting member according to the signal, so that the electronic oil gun stops refueling. The refueling control system is connected to one or more electronic fuel guns via signals. The refueling control system is used to control the opening and closing of the valve assembly of each electronic fuel gun, thereby controlling the amount of oil injected into each electronic fuel gun.

4. The multifunctional electronic oil gun according to claim 3, characterized in that: An antenna is provided on the main circuit board, and the central processing module also includes a wireless communication unit. The wireless communication unit receives the signal sent by the refueling control system through the antenna and sends the signal to the processing unit. The processing unit controls the oil filling amount of the electronic oil gun according to the signal.

5. The multifunctional electronic oil gun according to claim 1, characterized in that: The processing unit includes a signal conditioning component, the signal conditioning component includes a pulse signal sampling circuit, and the signal conditioning component is used to amplify and filter the flow signal output by the flow metering device; The signal transmission unit includes a signal receiving area and a signal output area; A light guide column is provided on the main circuit board, and a mounting hole adapted to the light guide column is provided on the upper cover.

6. The multifunctional electronic oil gun according to claim 1, characterized in that: The information card matched with the reader / writer stores vehicle management information, which includes vehicle identification information and refueling guarantee information; The reader / writer includes a card reader / writer module and an IC card. The card reader / writer module reads the vehicle management information of the refueled vehicle from the information card. The IC card is used to update and store the vehicle management information of the refueled vehicle read by the card reader / writer module. The card reader module is connected to the processor signal. The processor obtains the signal from the card reader module and controls the oil filling action of the electronic oil gun according to the obtained signal.

7. The multifunctional electronic oil gun according to claim 1, characterized in that: One end of the connecting member is connected to the adjusting shaft, and the other end is connected to the driving component. The connecting member is driven by the driving component to adjust the movement of the adjusting shaft. The adjusting shaft drives the valve core to move under the action of the connecting member, thereby connecting or blocking the oil channel in the oil pipe. The driving component is connected to the processor. When the processor sends a signal to the driving component, the driving component adjusts the action of the connecting member according to the signal.

8. The multifunctional electronic oil gun according to claim 1, characterized in that: The power supply group includes a battery module, and the battery module is used to supply power to the display, the processor and the reader.

Images