Purely pneumatic petrol dispenser

Abstract

The present application relates to the technical field of gasoline filling equipment, and discloses a pure-pneumatic gasoline quantitative filling machine, which comprises a cabinet serving as a basic mounting component of the whole equipment and used for mounting and assembling various matching mechanisms and structural components thereof; a cabinet door arranged on the cabinet and used for mounting a control assembly and protecting the internal mechanisms and structural components thereof; an oil storage assembly mounted in the cabinet and used for storing gasoline, explosion-proof design ensuring safety and preventing gasoline evaporation; and a quantitative filling mechanism mounted on the inner wall of the cabinet and used for filling gasoline into a motorcycle tank, which comprises a quantitative cylinder and a limiting assembly. By adopting a pure-pneumatic control system, the danger of electric spark is avoided, the device is independently filled and refilled before and after, the liquid level display improves efficiency, the quantitative cylinder design makes the filling amount adjustable between 0 and 2000 ml, the capacity adjustment prompt and intelligent alarm function are provided, the oil storage tank adopts a vacuum breather valve and a flame-retardant explosion-proof material, and the explosion-proof design eliminates safety hazards.

Description

Technical Field

[0001] This invention relates to the field of gasoline refueling equipment technology, specifically a pure pneumatic gasoline metering machine. Background Technology

[0002] In the motorcycle assembly workshop, before the routine ignition and starting performance test of the finished motorcycles, inspectors from the Technical Quality Assurance Department need to manually draw a certain amount of fuel from the military-grade fuel tank (25 liters) according to the required gasoline consumption (600-1100ml) for each motorcycle model. The specific process involves manually opening the fuel tank valve, using a graduated measuring cup to draw a certain amount of fuel, and then quantitatively adding the drawn fuel to the motorcycle's fuel tank before conducting the ignition and starting performance test. When the fuel in the tank runs out, a pneumatic diaphragm pump is used to manually replenish the fuel from the storage tank to ensure timely and quantitative supply.

[0003] In summary, existing technologies suffer from low efficiency, severe oil and gas volatilization and pollution, and safety hazards. The entire process of metered filling, refueling, and replenishment is completed within the workshop, resulting in low efficiency. The natural volatilization of oil and gas, along with the flow of gases during the filling and replenishment process, exacerbates volatilization, causing air pollution in the workshop. Workers frequently come into direct contact with gasoline, which can easily lead to respiratory, esophageal, and skin damage and diseases. Leaks and spills occur during on-site oil filling and replenishment, resulting in severe oil and gas volatilization and posing safety hazards.

[0004] Therefore, in order to address the above problems, this invention proposes a purely pneumatic gasoline metering dispenser. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a purely pneumatic gasoline metering dispenser, which solves the problems of insufficient safety, ease of operation, dispensing accuracy, and anti-static properties in existing gasoline metering dispensers.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a purely pneumatic gasoline dispensing machine, comprising: The server rack, as the basic installation component of the overall equipment, is used to install and assemble various supporting operating mechanisms and their associated structural components; Cabinet doors, which are installed on the cabinet, are used to install control components and protect the internal mechanisms and structural components of the cabinet. An oil storage assembly, installed inside the cabinet, is used to store gasoline. Its explosion-proof design ensures safety and prevents gasoline evaporation. A metering filling mechanism, installed on the inner wall of the cabinet, is used to meter gasoline into the motorcycle's fuel tank; It includes a metering cylinder and a limiting component. The metering cylinder is fixedly connected to the inner wall of the cabinet. A driving cylinder is symmetrically arranged on the metering cylinder. The driving ends of the metering cylinder and the driving cylinder are fixedly connected to cylinder shafts. The two cylinder shafts are fixed together. The limiting component is installed on the cabinet. Both ends of the driving cylinder are connected to regulating valves. A valve assembly, installed inside the cabinet, is used to control the operation of the cylinder and the metering cylinder; Pipelines, which are installed inside the cabinet, are used to connect the oil storage components, the metering filling mechanism and the valve group to ensure the flow of gasoline and the pneumatic system; A gasoline refueling nozzle, with its connecting pipe, is used to dispense a measured amount of gasoline into the motorcycle's fuel tank; An electrostatic ball eliminator is installed inside the cabinet and connected to the equipment's anti-static connection line and grounding electrode to prevent static electricity buildup. A control component, mounted on the cabinet, is used for manually controlling the operation of the overall equipment; The oil replenishment pump, which is located inside the cabinet and connected to a handle-type pneumatic control valve, is used to perform oil replenishment and emptying operations on the oil storage tank through pneumatic control.

[0007] Preferably, the limiting component includes a limiting plate, which is fixedly connected to the metering cylinder fixing plate. The limiting plate has a limiting hole for every 100ml to determine the dispensing volume. The metering cylinder is provided with a limiting block, which is locked or released by a cylinder. The adjusting handle is moved to the selected dispensing volume position. A limiting pin is installed on the limiting block. A clamping cylinder frame is fixedly connected to the outer wall of the limiting block. A thin cylinder is fixedly connected to the outer wall of the clamping cylinder frame for locking the limiting block. The locking or releasing is achieved by a push-button pneumatic control valve. Multiple speed regulating valves are provided on the thin cylinder.

[0008] Preferably, the oil storage assembly includes an oil storage tank, which is located inside the cabinet and filled with flame-retardant and explosion-proof material. A control valve is connected to the outer wall of the oil storage tank, and a transparent liquid level tube is fixedly connected to the other end of the control valve. A connector is fixedly connected to the other end of the transparent liquid level tube, and the other end of the connector is connected to the oil storage tank. The bottom of the oil storage tank is connected to two outlets, one of which is a drain outlet, and the other is a metering cylinder oil suction port and an oil storage tank venting port. A vacuum breather valve is connected to the oil storage tank.

[0009] Preferably, the pipeline includes a second connector, which is installed on the oil reservoir. The other end of the second connector is connected to a first steel pipe. The first steel pipe is connected to a connecting pipe via a valve group. The other end of the connecting pipe is connected to a tee pipe. The other two connecting ends of the tee pipe are respectively connected to a first conduit and a second conduit. The other end of the second conduit is connected to a connecting part. The other end of the first conduit is connected to the outlet of a metering cylinder. The inlet of the metering cylinder is connected to a rotary tube suction filter, which is used to filter impurities in the gasoline.

[0010] Preferably, the valve assembly includes a valve mounting block, which is fixedly connected to the inner wall of the cabinet. A connecting pipe is fixedly connected to the outer wall of the valve mounting block. An elbow is connected to the inlet of the connecting pipe, and a steel pipe is connected to the other end of the elbow. The connecting pipe connects to two sets of angle seat valves, and L-shaped threaded two-way valves are installed on the outer walls of both sets of angle seat valves. A pagoda connector is provided on the outer walls of both sets of angle seat valves.

[0011] Preferably, the connecting pipe is connected to a second steel pipe, the second steel pipe is connected to a connecting pipe, and the other end of the connecting pipe is connected to an outlet.

[0012] Preferably, the cabinet is equipped with a fuel replenishment rod. One end of the fuel replenishment rod is connected to the fuel tank for replenishing gasoline. One end of the fuel replenishment rod is connected to an anti-evaporation cap to prevent gasoline from evaporating. The other end of the fuel replenishment rod is connected to a hose, which is connected to the fuel replenishment pump for replenishing the fuel from the fuel tank. At the same time, the fuel in the tank can be emptied through the drain pipe.

[0013] Preferably, the replenishing pump is connected to an air source triple unit, which is connected to the replenishing pump, the drive cylinder, the thin cylinder and the handle-type air port valve respectively, for adjusting and filtering the air source.

[0014] Preferably, the gasoline refueling nozzle includes a corrugated pipe connector, which is connected to the internal piping of the cabinet. The corrugated pipe connector is connected to a handle, which is connected to a protective shell. The protective shell is provided with two pneumatic control operation buttons for controlling the start and end of the refueling process. A rotary joint is connected inside the protective shell, and the rotary joint is connected to a refueling pipe. The other end of the refueling pipe is connected to an anti-drip nozzle, and an anti-evaporation cap is provided at the connection between the refueling pipe and the anti-drip nozzle.

[0015] Preferably, the control component includes a control panel, which is disposed on the cabinet door. The cabinet door is provided with an adjustment scale panel, and an adjustment handle is slidably connected to the middle through groove of the adjustment scale panel. The adjustment handle is connected to a limit block. The cabinet is provided with an oil replenishment start / stop button, which is used to control the start and stop of the oil replenishment pump. It is also connected to the air source triplet and other related air control valves through a pneumatic hand valve.

[0016] Working principle: First, the operator needs to prepare the equipment. By adjusting the handle, the limit block is moved up and down. Adjusting the limit block to the desired filling volume position according to the scale, and then locking the limit block with the cylinder to ensure accurate filling volume. The limit pin on the limit block is inserted into the corresponding limit hole on the limit plate to fix the filling volume.

[0017] Next, insert the gasoline nozzle into the fuel filler neck of the motorcycle's fuel tank. The nozzle has start and stop buttons, and the filling process is controlled by a pneumatic control system. Pressing the start button activates the pneumatic control system, driving the cylinder and initiating gasoline filling. The metering cylinder is connected to a rotary tube suction filter through its inlet to ensure that impurities in the gasoline are filtered out.

[0018] During the refueling process, the outlet of the metering cylinder is connected to the fuel nozzle via a conduit. Gasoline is delivered to the fuel nozzle through the conduit and then precisely added to the motorcycle's fuel tank. When the set amount is reached, the equipment automatically stops refueling. The operator presses the stop button, causing the cylinder to retract and the metering cylinder to draw gasoline from the explosion-proof fuel tank, preparing for the next refueling. The operator then removes the fuel nozzle from the tank, completing one refueling cycle.

[0019] The fuel replenishment pump is controlled by a lever-operated pneumatic valve. Its inlet branches connect to the fuel tank and the fuel replenishment lever, while its outlet branches connect to the fuel tank and the fuel nozzle. The pump's design allows for non-quantitative filling and fuel tank emptying operations via a pipeline on / off valve. For non-quantitative filling, the pump directly dispenses gasoline from the fuel tank and adds it to the target container via the fuel nozzle. For emptying the fuel tank, the pump empties the gasoline from the tank via the outlet branch and the emptying pipeline.

[0020] The entire operation is controlled by various buttons and manual valves on the control panel, including the injection start / stop button, limit block lock / release button, oil replenishment line switching manual valve, pressure gauge, and emergency stop button. These control elements are connected to the various pneumatic components of the equipment through a pneumatic control system to ensure stable operation of the equipment during operation.

[0021] To ensure safety, the equipment is equipped with an electrostatic ball eliminator connected to an anti-static cable and grounding electrode to prevent static electricity buildup. Additionally, the fuel tank and refueling nozzle are equipped with anti-evaporation caps to reduce gasoline evaporation and protect the environment and operator safety.

[0022] This invention provides a purely pneumatic gasoline dispensing machine. It has the following advantages: 1. This invention, through the design of a pure pneumatic control system, achieves the effect of having no electrical components, thus solving the problem of electrical spark hazards existing in the prior art. The pneumatic pressure display and adjustment are all set on the equipment cabinet, which facilitates quick on-site operation by operators. The front filling of the equipment and the rear replenishment of oil tank can be carried out simultaneously and independently, with liquid level displays at both the front and rear, improving the convenience and efficiency of operation.

[0023] 2. This invention features a quantitative cylinder design, allowing the filling volume to be adjusted between 0 and 2000 ml with an adjustment precision of 100 ml increments. It also includes markings for commonly used filling volumes and a volume adjustment prompt function. Operation is convenient and quick. After filling, when the equipment reaches a low liquid level, an audible alarm is triggered by opening the pneumatic valve. Operators can set the alarm volume using the pressure reducing valve, achieving intelligent prompting and further improving operational convenience and intelligence.

[0024] 3. The fuel tank of this invention adopts a vacuum breathing valve design to prevent gasoline evaporation. The interior is filled with flame-retardant and explosion-proof materials and divided into countless honeycomb-shaped small cells. Even if gasoline catches fire accidentally, the fuel tank will not explode. Its innovative explosion-proof design greatly eliminates safety hazards, reduces environmental pollution, and effectively protects the health of employees.

[0025] 4. Both the filling gun and the equipment of this invention have independent static electricity conduction lines. The equipment is connected to the nearest individual ground electrode. With the help of the static electricity ball eliminator, the generated static electricity can be discharged and eliminated in a timely and effective manner, ensuring safe and reliable operation. Attached Figure Description

[0026] Figure 1 This is a front view of the dispensing machine of the present invention; Figure 2 This is a schematic diagram of the internal structure of the filling machine of the present invention; Figure 3 This is a top view of the cabinet of the present invention; Figure 4 This is a schematic diagram of the structure of the oil storage tank of the present invention; Figure 5 This is a side view of the oil storage tank of the present invention; Figure 6 This is a front view of the valve assembly of the present invention; Figure 7 This is a top view of the valve assembly of the present invention; Figure 8 This is a schematic diagram of the structure of the gasoline refueling nozzle of the present invention; Figure 9 This is a schematic diagram of the quantitative dispensing mechanism of the present invention; Figure 10 for Figure 2 Enlarged view of point A in the middle; Figure 11 This is the gas path diagram for the present invention.

[0027] The components include: 1. Cabinet; 2. Cabinet door; 3. Control panel; 4. Adjustment scale panel; 5. Adjustment handle; 6. Oil tank; 7. Control valve; 8. Transparent level tube; 9. Connector 1; 10. Vacuum breather valve; 11. Outlet; 12. Connector 2; 13. Steel pipe 1; 14. Connecting pipe; 15. T-connector; 16. Conduit 1; 17. Conduit 2; 18. Connecting part; 19. Rotary tubular suction oil filter; 20. Metering cylinder; 21. Drive cylinder; 22. Cylinder coupling; 23. Limiting plate; 24. Limiting hole; 25. Limiting block; 26. Thin cylinder; 27. Speed ​​control valve; 28. 29. Clamping cylinder frame; 30. Limit pin; 31. Regulating valve; 32. Valve mounting block; 33. Elbow; 34. Connecting pipe; 35. Angle seat valve; 36. Steel pipe II; 37. Pagoda connector; 38. L-shaped threaded tee; 39. Connecting pipe; 40. Static ball eliminator; 41. Oil replenishing rod; 42. Anti-evaporation cap I; 43. Hoses; 44. Air source triple unit; 45. Oil replenishing pump; 46. Oil replenishing start / stop button; 47. Corrugated pipe connector; 48. Handle; 49. Protective shell; 50. Pneumatic control operation button; 51. Rotary joint; 52. Oil filling pipe; 53. Anti-drip nozzle; 54. Anti-evaporation cap II. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example: Please see the appendix Figure 1 -Appendix Figure 3 and attached Figure 9 -Appendix Figure 11 This invention provides a purely pneumatic gasoline dispensing machine, comprising: Cabinet 1 serves as the basic installation component of the overall equipment, used for installing and assembling various supporting operating mechanisms and their associated structural components; Cabinet door 2, which is installed on cabinet 1, is used to install control components and protect the internal mechanism and structural components of cabinet 1; The fuel storage assembly, installed inside cabinet 1, is used to store gasoline. Its explosion-proof design ensures safety and prevents gasoline evaporation. A metering filling mechanism, installed on the inner wall of cabinet 1, is used to meter gasoline into the motorcycle's fuel tank; It includes a metering cylinder 20 and a limiting component. The metering cylinder 20 is fixedly connected to the inner wall of the cabinet 1. A driving cylinder 21 is symmetrically arranged on the metering cylinder 20. The driving ends of the metering cylinder 20 and the driving cylinder 21 are fixedly connected to the cylinder shafts 22. The two cylinder shafts 22 are fixed together. The limiting component is installed on the cabinet 1. Both ends of the driving cylinder 21 are connected to the regulating valves 30. The limiting component includes a limiting plate 23, which is fixedly connected to the fixing plate of the metering cylinder 20. The limiting plate 23 is designed with a limiting hole 24 for every 100ml, which is used to determine the injection volume. The metering cylinder 20 is provided with a limiting block 25, which is locked or released by a cylinder. The adjusting handle 5 is moved to the selected injection volume position. A limiting pin 29 is installed on the limiting block 25. A clamping cylinder frame 28 is fixedly connected to the outer wall of the limiting block 25. A thin cylinder 26 is fixedly connected to the outer wall of the clamping cylinder frame 28, which is used to lock the limiting block 25. It is locked or released by a push-button pneumatic control valve. Multiple speed regulating valves 27 are provided on the thin cylinder 26.

[0030] Specifically, the working principle and process of the above-mentioned quantitative dispensing mechanism consists of several steps, as follows: 1. Preparation Stage: The operator slides the limit block 25 using the adjustment handle 5, adjusting the limit block 25 to the desired filling position according to the scale on the adjustment panel 4. The limit pin 29 on the limit block 25 is inserted into the corresponding limit hole 24 on the limit plate 23 to ensure the accuracy of the filling volume. The locking cylinder 26 locks the limit block 25 to prevent displacement during the filling process.

[0031] 2. Filling Stage: Insert the fuel nozzle 50 into the fuel filler neck of the motorcycle's fuel tank. Press the start button on the fuel nozzle, and the pneumatic control system starts the drive cylinder 21, which in turn drives the metering cylinder 20 via the cylinder coupling 22 to perform filling. The inlet of the metering cylinder 20 is connected to a rotary tube suction filter 19 to ensure that impurities in the gasoline are filtered out. The outlet of the metering cylinder 20 is connected to the fuel nozzle via a conduit 16, and gasoline is delivered to the fuel nozzle through the conduit and then precisely filled into the motorcycle's fuel tank.

[0032] 3. Completion of refueling: When the set refueling volume is reached, the equipment automatically stops refueling via a control signal. The operator presses the stop button, driving cylinder 21 to retract, while the metering cylinder 20 draws gasoline from the explosion-proof fuel tank 6, preparing for the next refueling. Then, the operator removes the refueling nozzle from the tank, completing one refueling cycle.

[0033] The dispensing volume is adjustable from 0 to 2000 ml thanks to the design of the metering cylinder 20 and the limiting component, with adjustment precision in 100 ml increments. The capacity adjustment indication function of the limiting block 25 and the locking cylinder ensure the accuracy of the dispensing volume, avoid human error, and improve work efficiency.

[0034] Meanwhile, the metering cylinder 20 and the drive cylinder 21 are connected by the cylinder coupling 22 to achieve synchronous operation and ensure the stability and consistency of the filling process.

[0035] After refueling is completed, when the equipment reaches a low liquid level, the pneumatic valve is opened to trigger an audible alarm. The operator can set the alarm volume through the pressure reducing valve to achieve intelligent prompting, further improving the convenience and intelligence of operation.

[0036] The inlet of the metering cylinder 20 is equipped with a rotary tube suction filter 19, which can effectively filter impurities in gasoline, protect the normal operation of the equipment, and improve the durability and reliability of the equipment.

[0037] With the pneumatic control system and adjustment handle 5, operators can easily and quickly adjust and lock the filling volume, simplifying the operation process and improving operational efficiency.

[0038] In summary, the quantitative refueling mechanism of the present invention, through the above design and operation process, achieves efficient, safe and accurate quantitative gasoline refueling, with significant beneficial effects. It can effectively improve the convenience and safety of operation and is suitable for various application scenarios that require precise gasoline refueling.

[0039] The valve assembly, installed in cabinet 1, is used to control the operation of the cylinder and the metering cylinder 20; The pipeline, which is located in cabinet 1, is used to connect the oil storage assembly, the metering filling mechanism and the valve group to ensure the flow of gasoline and the pneumatic system. A gasoline refueling nozzle, with its connecting pipe, is used to dispense a measured amount of gasoline into the motorcycle's fuel tank; The static ball eliminator 39 is installed in the cabinet 1 and connected to the anti-static connection line and grounding electrode of the equipment to prevent static electricity accumulation. The control component, which is located on rack 1, is used for manual control of the operation of the overall equipment; The oil replenishment pump 44 is installed in the cabinet 1 and connected to a handle-type pneumatic control valve. It is used to replenish and empty the oil storage tank 6 through pneumatic control.

[0040] Please see the appendix Figure 4 -Appendix Figure 5 The oil storage assembly includes an oil storage tank 6, which is located inside the cabinet 1 and filled with flame-retardant and explosion-proof material. A control valve 7 is connected to the outer wall of the oil storage tank 6. A transparent liquid level pipe 8 is fixedly connected to the other end of the control valve 7. A connector 9 is fixedly connected to the other end of the transparent liquid level pipe 8. The other end of the connector 9 is connected to the oil storage tank 6. Two outlets 11 are connected to the bottom of the oil storage tank 6. One outlet 11 is a drain outlet, and the other outlet 11 is the oil suction port of the metering cylinder 20 and the venting port of the oil storage tank 6. A vacuum breather valve 10 is connected to the oil storage tank 6.

[0041] Specifically, the interior of the fuel tank is filled with flame-retardant and explosion-proof material, and equipped with dividers made of aluminum alloy mesh. Several dividers are fixed inside the tank and fill the entire tank. When air enters the tank and mixes with the volatile gases of the fuel oil, it is separated by the honeycomb-like cells, preventing the concentration of flammable gases from reaching the explosive limit. This solves the problem of the fuel tank's explosive safety and gives it explosion-proof and fire-resistant properties. The design of the fuel tank ensures that even if gasoline catches fire in an accident, it will not cause an explosion.

[0042] Control valve 7 is used to control the inflow and outflow of oil into the oil reservoir. The other end of control valve 7 is fixedly connected to transparent level tube 8, and the other end of transparent level tube 8 is fixedly connected to connector 9. The other end of connector 9 is then connected to the oil reservoir 6. Transparent level tube 8 is used to display the oil level in the oil reservoir, allowing operators to monitor the oil level in real time.

[0043] The fuel tank has two outlets 11 at the bottom. One outlet 11 is used for sludge drainage to ensure the cleanliness and maintenance of the tank's interior. The other outlet 11 serves as the suction port for the metering cylinder 20 and is also used for emptying the fuel tank, allowing for easy removal of fuel when needed. The fuel tank is also connected to a vacuum breather valve 10 to prevent gasoline evaporation and maintain pressure balance within the tank.

[0044] Please see the appendix Figure 2 The pipeline includes connector 2 12, which is installed on the oil reservoir 6. The other end of connector 2 12 is connected to steel pipe 1 13. Steel pipe 1 13 is connected to connecting pipe 14 through valve group. The other end of connecting pipe 14 is connected to tee pipe 15. The other two connecting ends of tee pipe 15 are respectively connected to conduit 1 16 and conduit 2 17. The other end of conduit 2 17 is connected to connecting part 18. The other end of conduit 1 16 is connected to the outlet of metering cylinder 20. The inlet of metering cylinder 20 is connected to rotary tube suction filter 19, which is used to filter impurities in gasoline.

[0045] Specifically, firstly, the fuel tank 6 is connected to the steel pipe 13 via connector 2 12. When the gasoline in the fuel tank needs to be delivered to the metering cylinder 20, the gasoline enters the steel pipe 13 through connector 2 12. The steel pipe 13 is connected to the valve assembly, which regulates the flow direction, and then delivers the gasoline to the tee pipe 15 through the connecting pipe 14.

[0046] The three-way pipe 15 serves a distribution function, with one end connected to conduit 16 and the other end connected to conduit 17. Conduit 16 is directly connected to the outlet of the metering cylinder 20, ensuring that gasoline is accurately delivered to the metering filling mechanism. The inlet of the metering cylinder 20 is connected to a rotary tube suction filter 19, which effectively filters impurities in the gasoline, ensuring that the gasoline entering the metering cylinder 20 is clean, thereby protecting the normal operation of the metering filling mechanism.

[0047] The second conduit 17 is connected to other pipelines or components via the connector 18, further increasing the system's flexibility and scalability. Through the rational connection and layout between the various components, the entire pipeline system ensures the efficient and stable transmission of gasoline from the reservoir 6 to the metering cylinder 20.

[0048] Please see the appendix Figure 6 -Appendix Figure 7 The valve assembly includes a valve mounting block 31, which is fixedly connected to the inner wall of the cabinet 1. A connecting pipe 33 is fixedly connected to the outer wall of the valve mounting block 31. An elbow 32 is connected to the inlet of the connecting pipe 33, and a steel pipe 13 is connected to the other end of the elbow 32. The connecting pipe 33 connects to two sets of angle seat valves 34. L-shaped threaded two-way valves 37 are installed on the outer wall of both sets of angle seat valves 34, and pagoda connectors 36 are provided on the outer wall of both sets of angle seat valves 34.

[0049] Connecting pipe 33 is connected to steel pipe 2 35, steel pipe 2 35 is connected to connecting pipe 38, and the other end of connecting pipe 38 is connected to outlet 11.

[0050] Specifically, gasoline in the fuel tank 6 enters the steel pipe 13 through connector 2 12, and then flows into the connecting pipe 33 through elbow 32. The connecting pipe 33, as the main fuel pipeline, distributes the gasoline to different control valves 7.

[0051] The connecting pipe 33 connects to two sets of angle seat valves 34, which are used to control the flow path of gasoline. When operating the angle seat valves, different flow directions can be selectively opened or closed, allowing gasoline to flow along a set path.

[0052] The L-shaped threaded tee 37 and the pagoda-shaped connector 36 on the outer wall of the angle seat valve 34 are used for precise flow regulation and pipeline connection. By adjusting these connectors, the flow rate of each branch pipeline can be controlled, ensuring the accuracy of metered dispensing and other operations.

[0053] Gasoline flows through connecting pipe 33 into steel pipe 35, and then through connecting pipe 38 to outlet 11. This outlet 11 can be used for sludge discharge, as well as as the suction port of the metering cylinder 20 and the venting port of the oil storage tank. When maintenance or emptying of the oil storage tank is required, the venting operation can be easily completed by operating the corresponding angle seat valve and connecting pipe.

[0054] Please see the appendix Figure 2 -Appendix Figure 3 The cabinet 1 is equipped with a fuel replenishment rod 40. One end of the fuel replenishment rod 40 is connected to the fuel storage tank 6, which is used to replenish gasoline. One end of the fuel replenishment rod 40 is connected to an anti-evaporation cap 41, which is used to prevent gasoline from evaporating. The other end of the fuel replenishment rod 40 is connected to a hose 42, which is connected to a fuel replenishment pump 44, which is used to replenish the fuel from the oil drum into the fuel storage tank 6. At the same time, the fuel in the tank can be emptied through the drain pipe.

[0055] The oil replenishment pump 44 is connected to an air source triple unit 43, which is connected to the oil replenishment pump 44, the drive cylinder 21, the thin cylinder 26 and the handle-type air port valve respectively, for adjusting and filtering the air source.

[0056] Specifically, one end of the refueling boom 40 is connected to the fuel tank 6 to replenish gasoline from the outside. The refueling boom 40 is equipped with an anti-evaporation cap 41 to prevent gasoline from evaporating during the refueling process, reducing environmental pollution and safety hazards. When refueling is needed, the refueling pump 44 draws gasoline from the storage tank and delivers it to the fuel tank 6 through the hose 42 and the refueling boom 40. The hose design makes the refueling process more flexible and convenient.

[0057] In addition to its refueling function, the refueling pump 44 can also empty the fuel tank through the venting line. When maintenance or cleaning of the fuel tank is required, the refueling pump can be operated to drain the gasoline from the tank through the venting line, facilitating subsequent operations.

[0058] The air supply triplet is used to regulate and filter the air supply to the oil replenishment pump, drive cylinder 21, thin cylinder 26, and handle-type air port valve. The air supply triplet 43 ensures stable air pressure and good air quality in the pneumatic system, preventing air supply problems from affecting the normal operation of the equipment.

[0059] Please see the appendix Figure 8 The gasoline refueling nozzle includes a corrugated pipe connector 46, which is connected to the internal piping of the cabinet 1. The corrugated pipe connector 46 is connected to a handle 47, which is connected to a protective shell 48. The protective shell 48 is equipped with two pneumatic control operation buttons 49, which are used to control the start and end of the refueling process. The protective shell 48 is internally connected to a rotary joint 50, which is connected to a refueling pipe 51. The other end of the refueling pipe 51 is connected to an anti-drip nozzle 52. An anti-evaporation cap 53 is provided at the connection between the refueling pipe 51 and the anti-drip nozzle 52.

[0060] Specifically, the corrugated pipe connector 46 is connected to the piping system inside the cabinet 1 to ensure that gasoline is smoothly delivered from the oil storage component or metering dispensing mechanism inside the cabinet to the refueling nozzle.

[0061] Two pneumatic control buttons 49 are used to control the start and end of the refueling process, respectively. When the operator presses the start button, the pneumatic control system starts the gasoline delivery; when the stop button is pressed, the pneumatic control system stops the gasoline delivery, ensuring precise control of the refueling process.

[0062] The swivel joint design allows the refueling hose to rotate flexibly during use, preventing twisting and damage to the hose and improving operational flexibility and durability.

[0063] The other end of the refueling pipe 51 is connected to an anti-drip nozzle 52 to prevent dripping during refueling and maintain a clean operating environment. An anti-evaporation cap 53 is installed at the connection between the refueling pipe and the anti-drip nozzle to prevent gasoline from evaporating during refueling, reducing environmental pollution and ensuring the safety of operators.

[0064] Please see the appendix Figure 1 and attached Figure 2 The control components include a control panel 3, which is located on the cabinet door 2. The cabinet door 2 is equipped with an adjustment scale panel 4. An adjustment handle 5 is slidably connected to the middle through groove of the adjustment scale panel 4. The adjustment handle 5 is connected to the limit block 25. The cabinet 1 is equipped with an oil replenishment start / stop button 45, which is used to control the start and stop of the oil replenishment pump 44. At the same time, it is connected to the air source triplet 43 and other related air control valves through the air control hand valve.

[0065] Specifically, by adjusting the sliding of the handle 5, the position of the limit block 25 can be precisely adjusted to control the dispensing amount of the metering dispensing mechanism. The adjusting handle 5 is connected to the limit block 25. By sliding the handle, the operator can intuitively adjust and set the dispensing amount to ensure the accuracy of dispensing.

[0066] Operators can easily start or stop the fuel replenishment pump using the fuel replenishment start / stop button inside cabinet 1. The fuel replenishment pump is connected to fuel tank 6 via a hose to replenish gasoline, and the fuel in fuel tank 6 can be emptied via a drain line.

[0067] The control panel is also connected to the air supply triplet 43 and other related pneumatic valves via a pneumatic hand valve. The air supply triplet is used to regulate and filter the air supply, ensuring stable air pressure and good air quality for the oil replenishment pump, drive cylinder 21, thin cylinder 26, and handle-type air port valve. The pneumatic hand valve is designed to allow operators to easily control various parts of the pneumatic system, improving system stability and reliability.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A purely pneumatic gasoline dispensing machine, characterized in that, include: The cabinet (1) serves as the basic installation component of the overall equipment and is used to install and assemble various supporting operating mechanisms and their structural components; Cabinet door (2), which is set on the cabinet (1) for installing control components and protecting the internal mechanism and its structural components of the cabinet (1); The oil storage assembly, installed inside the cabinet (1), is used to store gasoline. Its explosion-proof design ensures safety and prevents gasoline evaporation. A metering filling mechanism is installed on the inner wall of the cabinet (1) for metering gasoline into the motorcycle fuel tank; Includes a metering cylinder (20) and a limiting component. The metering cylinder (20) is fixedly connected to the inner wall of the cabinet (1). A driving cylinder (21) is symmetrically arranged on the metering cylinder (20). The driving ends of the metering cylinder (20) and the driving cylinder (21) are both fixedly connected to a cylinder coupling (22). The two cylinder couplings (22) are fixed together. The limiting component is installed on the cabinet (1). Both ends of the driving cylinder (21) are connected to a regulating valve (30). The limiting component includes a limiting plate (23), which is fixedly connected to the fixing plate of the metering cylinder (20). It is designed with a limiting hole (24) for every 100ml, which is used to determine the injection volume. The metering cylinder (20) is provided with a limiting block (25), which is locked or released by a cylinder. The adjusting handle (5) is moved to the selected injection volume position. The limiting block (25) is installed with a limiting pin (29). The outer wall of the limiting block (25) is fixedly connected with a clamping cylinder frame (28). The outer wall of the clamping cylinder frame (28) is fixedly connected with a thin cylinder (26), which is used to lock the limiting block (25). It is locked or released by a button-type pneumatic control valve. The thin cylinder (26) is provided with multiple speed regulating valves (27). A valve assembly, installed in the cabinet (1), is used to control the operation of the cylinder and the metering cylinder (20); Pipelines, which are installed in the cabinet (1), are used to connect the oil storage components, the metering filling mechanism and the valve group to ensure the flow of gasoline and the pneumatic system; A gasoline refueling nozzle, with its connecting pipe, is used to dispense a measured amount of gasoline into the motorcycle's fuel tank; An electrostatic ball eliminator (39) is installed inside the cabinet (1) and connected to the anti-static connection line and grounding electrode of the equipment to prevent static electricity accumulation. A control component is provided on the cabinet (1) for manually controlling the operation of the overall equipment; an adjustment scale panel (4) is provided on the cabinet door (2), and an adjustment handle (5) is slidably connected to the middle through groove of the adjustment scale panel (4), and the adjustment handle (5) is connected to the limit block (25). The oil replenishment pump (44) is located inside the cabinet (1) and connected to a handle-type pneumatic control valve, which is used to replenish and empty the oil storage tank (6) through pneumatic control.

2. The pure pneumatic gasoline dispensing machine according to claim 1, characterized in that, The oil storage assembly includes an oil storage tank (6), which is located inside the cabinet (1) and filled with flame-retardant and explosion-proof material. A control valve (7) is connected to the outer wall of the oil storage tank (6). A transparent liquid level pipe (8) is fixedly connected to the other end of the control valve (7). A connector (9) is fixedly connected to the other end of the transparent liquid level pipe (8). The other end of the connector (9) is connected to the oil storage tank (6). Two outlets (11) are connected to the bottom of the oil storage tank (6). One outlet (11) is a drain outlet, and the other outlet (11) is a quantitative cylinder oil suction port and an oil storage tank (6) venting port. A vacuum breathing valve (10) is connected to the oil storage tank (6).

3. The pure pneumatic gasoline dispensing machine according to claim 2, characterized in that, The pipeline includes a second connector (12), which is installed on the oil storage tank (6). The other end of the second connector (12) is connected to a first steel pipe (13). The first steel pipe (13) is connected to a connecting pipe (14) through a valve group. The other end of the connecting pipe (14) is connected to a three-way pipe (15). The other two connecting ends of the three-way pipe (15) are respectively connected to a first conduit (16) and a second conduit (17). The other end of the second conduit (17) is connected to a connecting part (18). The other end of the first conduit (16) is connected to the outlet of a metering cylinder (20). The inlet of the metering cylinder (20) is connected to a rotary tube suction filter (19), which is used to filter impurities in gasoline.

4. The pure pneumatic gasoline dispensing machine according to claim 1, characterized in that, The valve assembly includes a valve mounting block (31), which is fixedly connected to the inner wall of the cabinet (1). A connecting pipe (33) is fixedly connected to the outer wall of the valve mounting block (31). An elbow (32) is connected to the inlet of the connecting pipe (33). A steel pipe (13) is connected to the other end of the elbow (32). The connecting pipe (33) is connected to two sets of angle seat valves (34). L-shaped threaded two-way valves (37) are installed on the outer walls of both sets of angle seat valves (34). A pagoda connector (36) is provided on the outer walls of both sets of angle seat valves (34).

5. A purely pneumatic gasoline dispensing machine according to claim 4, characterized in that, The connecting pipe (33) is connected to the second steel pipe (35), the second steel pipe (35) is connected to the connecting pipe (38), and the other end of the connecting pipe (38) is connected to the outlet (11).

6. A purely pneumatic gasoline dispensing machine according to claim 1, characterized in that, The cabinet (1) is equipped with a fuel replenishment rod (40). One end of the fuel replenishment rod (40) is connected to the oil storage tank (6) for replenishing gasoline. One end of the fuel replenishment rod (40) is connected to an anti-evaporation cap (41) for preventing gasoline evaporation. The other end of the fuel replenishment rod (40) is connected to a hose (42) for replenishing oil from the oil drum into the oil storage tank (6). At the same time, the oil in the tank can be emptied through the drain pipe.

7. A purely pneumatic gasoline dispensing machine according to claim 6, characterized in that, The replenishing pump (44) is connected to an air source triple unit (43), which is connected to the replenishing pump (44), the drive cylinder (21), the thin cylinder (26) and the handle-type air port valve respectively, for adjusting and filtering the air source.

8. A purely pneumatic gasoline dispensing machine according to claim 1, characterized in that, The gasoline refueling nozzle includes a corrugated pipe connector (46), which is connected to the internal pipeline of the cabinet (1). The corrugated pipe connector (46) is connected to a handle (47), which is connected to a protective shell (48). The protective shell (48) is provided with two pneumatic operation buttons (49) for controlling the start and end of the refueling process. The protective shell (48) is connected to a rotating joint (50), which is connected to a refueling pipe (51). The other end of the refueling pipe (51) is connected to an anti-drip nozzle (52). An anti-evaporation cap (53) is provided at the connection between the refueling pipe (51) and the anti-drip nozzle (52).

9. A purely pneumatic gasoline dispensing machine according to claim 1, characterized in that, The control components include a control panel (3), which is located on the cabinet door (2). The cabinet (1) is equipped with an oil replenishment start / stop button (45), which is used to control the start and stop of the oil replenishment pump (44). It is also connected to the air source triplet (43) and other related air control valves through a pneumatic hand valve.

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