Apparatus for automatic calibration of an on-board system for oiling control

Abstract

The present application belongs to the technical field of oil calibration, and particularly relates to a pay oil control device automatic calibration vehicle-mounted system, which comprises a tank body, the upper and lower sidewalls of the tank body are fixedly connected with installation covers, the upper sidewall of the installation cover on the upper side is fixedly connected with a fixed pipe, the upper end of the fixed pipe is connected with an installation pipe through a connecting mechanism, the upper end of the installation pipe is fixedly connected with a connecting bracket, the upper sidewall of the connecting bracket is fixedly connected with a fixed platform, and the upper sidewall of the fixed platform is fixedly connected with an installation platform through bolts. The present application can effectively improve the calibration efficiency and the calibration accuracy of the automatic calibration device, shorten the calibration time, effectively reduce the pay time of the oil depot, directly realize the automatic calibration, record the calibration data, and calibrate the pay oil control device by non-professional operators.

Description

Technical Field

[0001] This invention belongs to the field of fuel quantity calibration technology, and in particular relates to an automatic calibration vehicle system for fuel dispensing control devices. Background Technology

[0002] Currently, the main mode of transportation for oil purchased by gas stations is tanker truck transportation. After a gas station orders a certain amount of oil, an equivalent value of oil is loaded from a nearby oil depot onto a tanker truck via an on-site dispensing device, and then delivered to the designated gas station for unloading. Therefore, the accuracy of the oil depot's dispensing device is crucial to protecting the interests of both parties.

[0003] As is well known, the automation of calibration devices can effectively improve calibration efficiency and accuracy. In large-scale oil dispensing sites, dozens of oil dispensing devices need to be calibrated. Each calibration requires the entire system to be shut down. Therefore, shortening the calibration time can effectively reduce the downtime of the oil depot. Secondly, there is currently no system that can directly achieve automated calibration and record calibration data. Although there are some cases of standard metal level gauges being installed, this system needs to meet the overall accuracy requirements. If only automatic equipment is installed without considering the overall accuracy of the device, the calibration work cannot be completed. Therefore, an automatic calibration system for oil dispensing control devices can fix the duration of each calibration and meet the requirement that the accuracy does not decrease after multiple calibrations over a long period of time.

[0004] Because the calibration of the current oil dispensing control device is all done manually by professional calibrators, the oil depot cannot complete the self-calibration of the oil dispensing control device with high quality. Once a problem occurs, dispensing must be stopped immediately, and repairs and calibrations must be carried out.

[0005] Therefore, we propose an automatic calibration system for the fuel dispensing control device to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing an automatic calibration system for a fuel dispensing control device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an automatic calibration vehicle system for a fuel dispensing control device, comprising a tank, wherein mounting covers are fixedly connected to both the upper and lower side walls of the tank, a fixed pipe is fixedly connected to the upper side wall of the upper mounting cover, the upper end of the fixed pipe is connected to an installation pipe via a connecting mechanism, a connecting bracket is fixedly connected to the upper end of the installation pipe, a fixed platform is fixedly connected to the upper side wall of the connecting bracket, an installation platform is fixedly connected to the upper side wall of the fixed platform via bolts, and a liquid level gauge information transmission system is fixedly connected to the upper side wall of the installation platform. The level gauge information transmission system includes a level gauge mounting section. An inlet and outlet pipe is fixedly connected to the lower side wall of the mounting cover. Multiple connecting seats are fixedly connected to the inner wall of the mounting cover. Support frames are fixedly connected to the upper side walls of each of the multiple connecting seats. The upper ends of the multiple support frames are fixedly connected to the same structure, which consists of two cones welded together. The diameter of the structure should be greater than three times the diameter of the outlet, and the cone angle should be less than 120°. The lower end of the structure is 2cm from the outlet plane, and the upper end of the structure is more than 50cm from the bottom of the level gauge.

[0008] In the aforementioned automatic calibration vehicle system for fuel dispensing control, the connecting mechanism includes connecting rings fixedly sleeved on the outer walls of the fixing tube and the mounting tube. Two connecting rings are fitted with two hinged covers. The sidewalls of the covers away from the hinges are respectively fixedly connected to a sliding frame and a locking block. The inner wall of the sliding frame is fixedly connected to a sliding block by a spring. The upper sidewall of the sliding block is fixedly connected to a sliding plate. The upper sidewall of the sliding frame has a sliding opening that matches the sliding plate. The upper sidewall of the sliding plate extends out of the sliding opening and is fixedly connected to a locking frame. The locking frame has a U-shaped structure, and the lower sidewall of the locking frame is located below the locking block.

[0009] In the above-mentioned automatic calibration vehicle system for fuel dispensing control device, the upper side wall of the card frame is provided with a limit hole, and a limit pin is inserted into the limit hole. The upper side wall of the sliding block is provided with a limit groove that matches the limit pin. The upper end of the limit pin is fixedly connected to a pull plate, and the pull plate and the side wall of the card frame on the opposite side are fixedly connected to the same spring.

[0010] In the aforementioned automatic calibration vehicle system for fuel dispensing control device, a pull ring is fixedly connected to the upper side wall of the pull plate.

[0011] In the above-mentioned automatic calibration vehicle system for fuel dispensing control device, a connecting component is inserted into the side wall of the mounting cover mentioned above, and a temperature sensor is inserted into the connecting component.

[0012] In the above-mentioned automatic calibration vehicle system for fuel dispensing control device, both the fixed pipe and the mounting pipe are fixedly connected to a sealing waterproof gasket at opposite ends.

[0013] In the aforementioned automatic calibration vehicle system for the fuel dispensing control device, a control valve is installed inside the inlet and outlet pipes.

[0014] In the aforementioned automatic calibration vehicle system for the fuel dispensing control device, a filter screen is fixedly connected to the inner wall of the inlet and outlet pipes. A circular plate is fixedly connected to the inner wall of the filter screen. A rotating rod is rotatably connected to the side wall of the circular plate. A spiral blade is fixedly connected to the lower end of the rotating rod. A working rod is fixedly connected to the side wall of the inlet and outlet pipes. The working rod and the rotating rod are connected by a bevel gear assembly. A cam is fixedly connected to the right end of the working rod. A placement plate is fixedly connected to the right side wall of the inlet and outlet pipes. A vertical cylinder is fixedly connected to the upper side wall of the placement plate. The lower side of the vertical cylinder... A sliding seat is fixedly connected to the inner wall by a spring. A lifting plate is fixedly connected to the right side wall of the sliding seat. A lifting port matching the lifting plate is opened on the side wall of the vertical cylinder. The right side wall of the lifting plate extends out of the lifting port and is fixedly connected to a pressing plate. A round tube is fixedly connected to the lower side wall of the pressing plate. A short tube is fixedly connected to the right side wall of the round tube. An air bladder is fixedly connected to the lower side wall of the round tube. A vertical tube is fixedly connected to the lower side wall of the air bladder. A one-way valve is provided in both the short tube and the vertical tube. The lower end of the vertical tube passes through the side wall of the placement plate and is fixedly connected to a horizontal box.

[0015] The left side wall of the horizontal box has a vent, the inner wall of the horizontal box is fixedly connected to a short plate, the right side wall of the short plate is fixedly connected to a piston plate by a spring, the left side wall of the piston plate is fixedly connected to a long guide plate, and the upper inner wall of the horizontal box is inlaid with multiple short guide plates.

[0016] Multiple cover frames are fixedly connected to the upper side wall of the mounting cover located on the upper side. A take-up roller is rotatably connected to the side wall of each cover frame. A motor is fixedly connected to the side wall of each cover frame. The long guide plate is electrically connected to an external power supply. The short guide plates are electrically connected to their corresponding motors via a PLC controller. The output end of each motor passes through the side wall of the cover frame and is fixedly connected to the take-up roller. A pull rope is fixedly sleeved on the rod wall of the take-up roller. A placement box is fixedly connected to the lower end of the pull rope. Sliding blocks are fixedly connected to the inner walls of both sides of the placement box via springs. The upper and lower side walls of each sliding block are fixedly connected to... The device includes an electric contact plate, two electric contact blocks embedded in the lower side wall of the placement box, an induction box fixedly connected to the side wall of the tank, a top plate fixedly connected to the upper inner wall of the induction box by a spring, a connecting shaft fixedly connected to the lower side wall of the top plate, a permanent magnet plate fixedly connected to the lower end of the connecting shaft, an electromagnetic plate fixedly connected to the lower inner wall of the induction box, an electric contact plate electrically connected to an external power source, an electric contact block electrically connected to the electromagnetic plate, a mounting ring fixedly connected to the inner wall of the induction box, a push switch fixedly connected to the upper side wall of the mounting ring, and a push switch electrically connected to a PLC controller.

[0017] Compared with existing technologies, the advantages of the automatic calibration of the vehicle system by the fuel dispensing control device are:

[0018] 1. Through the installation of tanks, mounting covers, fixed pipes, installation pipes, connecting brackets, fixed platforms, installation platforms, level gauge information transmission systems, level gauge installation parts, inlet and outlet pipes, connecting seats, and structures, the automation of the calibration device can effectively improve calibration efficiency and accuracy, shorten calibration time, effectively reduce the downtime of oil depots, directly achieve automated calibration, and record calibration data. The calibration of the oil dispensing control device can be performed by non-professional operators.

[0019] 2. By using the connecting ring, cover, sliding frame, locking block, sliding block, sliding plate, locking frame, limit pin, pull plate, and pull ring, the connecting frame can be easily and quickly disassembled and the components can be repaired after any damage occurs, thus improving the convenience of the operator's work.

[0020] 3. Through the installation of a filter screen, circular plate, rotating rod, spiral blade, working rod, cam, placement plate, vertical cylinder, sliding seat, lifting plate, pressing plate, circular tube, short tube, airbag, vertical tube, horizontal box, vent, short plate, piston plate, long guide plate, short guide plate, cover frame, winding roller, motor, PLC controller, pull rope, placement box, sliding block, electric contact plate, electric contact block, induction box, top plate, connecting shaft, permanent magnet plate, electromagnetic plate, mounting ring, and push switch, the oil surface can be quickly calmed down when oil is injected into the tank, avoiding the impact of fluctuating oil surface on the measurement accuracy of the level gauge when using it to detect the oil volume. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the automatic calibration vehicle system of the fuel dispensing control device provided by the present invention;

[0022] Figure 2 The automatic calibration vehicle system for the fuel dispensing control device provided by this invention Figure 1 An enlarged schematic diagram of part A in the middle;

[0023] Figure 3 The automatic calibration vehicle system for the fuel dispensing control device provided by this invention Figure 1 Enlarged schematic diagram of part B in the middle;

[0024] Figure 4 This is a schematic diagram showing the connection relationship between two card covers in the automatic calibration vehicle system of the fuel dispensing control device provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the inlet and outlet pipes in the automatic calibration vehicle system of the fuel dispensing control device provided by the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the placement box in the automatic calibration vehicle system of the fuel dispensing control device provided by the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the sensor box in the automatic calibration vehicle system of the fuel dispensing control device provided by the present invention.

[0028] In the diagram: 1. Tank body, 2. Mounting cover, 3. Fixing pipe, 4. Mounting pipe, 5. Connecting bracket, 6. Fixing platform, 7. Mounting platform, 8. Level gauge information transmission system, 9. Level gauge mounting part, 10. Inlet / outlet pipe, 11. Connecting seat, 12. Structure, 13. Connecting ring, 14. Clip cover, 15. Sliding frame, 16. Clip block, 17. Sliding block, 18. Sliding plate, 19. Clip frame, 20. Limit pin, 21. Pull plate, 22. Pull ring, 23. Temperature sensor, 24. Sealing and waterproof gasket, 25. Filter screen, 26. Circular plate, 27. Rotating rod, 28. Spiral blade, 29. Working rod, 30. Cam, 31 Placement plate, 32 Vertical cylinder, 33 Sliding seat, 34 Lifting plate, 35 Pressing plate, 36 Round tube, 37 Short tube, 38 Airbag, 39 Vertical tube, 40 Horizontal box, 41 Vent, 42 Short plate, 43 Piston plate, 44 Long guide plate, 45 Short guide plate, 46 Cover frame, 47 Take-up roller, 48 Motor, 49 PLC controller, 50 Pull rope, 51 Placement box, 52 Sliding block, 53 Electrical contact plate, 54 Electrical contact block, 55 Induction box, 56 Top plate, 57 Connecting shaft, 58 Permanent magnet plate, 59 Electromagnetic plate, 60 Mounting ring, 61 Press switch. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] like Figures 1-7As shown, the automatic calibration vehicle system for the fuel dispensing control device includes a tank 1. Mounting covers 2 are fixedly connected to both the upper and lower side walls of the tank 1. A fixing pipe 3 is fixedly connected to the upper side wall of the upper mounting cover 2. The upper end of the fixing pipe 3 is connected to an installation pipe 4 via a connecting mechanism. A connecting bracket 5 is fixedly connected to the upper end of the installation pipe 4. A fixing platform 6 is fixedly connected to the upper side wall of the connecting bracket 5. An installation platform 7 is fixedly connected to the upper side wall of the fixing platform 6 via bolts. A liquid level gauge information transmission system 8 is fixedly connected to the upper side wall of the installation platform 7. The liquid level gauge information transmission system 8 contains a liquid level gauge... The level gauge mounting part 9 has an inlet / outlet pipe 10 fixedly connected to the lower side wall of the lower mounting cover 2. Multiple connecting seats 11 are fixedly connected to the inner wall of the lower mounting cover 2. Support frames are fixedly connected to the upper side walls of the multiple connecting seats 11. The upper ends of the multiple support frames are fixedly connected to the same structure 12. The structure 12 consists of two cones welded together. The diameter of the circular structure 12 should be greater than 3 times the diameter of the drain port, and the cone angle should be less than 120°. The lower end of the structure 12 is 2cm away from the plane of the drain port, and the upper end of the structure 12 is more than 50cm away from the bottom of the level gauge.

[0031] The connecting mechanism includes connecting rings 13 fixedly sleeved on the outer walls of the fixed tube 3 and the mounting tube 4. Two hinged covers 14 are sleeved on the two connecting rings 13. Sliding frames 15 and locking blocks 16 are fixedly connected to the side walls of the covers 14 away from the hinges, respectively. A sliding block 17 is fixedly connected to the inner wall of the sliding frame 15 by a spring. A sliding plate 18 is fixedly connected to the upper side wall of the sliding block 17. A sliding opening matching the sliding plate 18 is opened on the upper side wall of the sliding frame 15. The upper side wall of the sliding plate 18 extends out of the sliding opening and is fixedly connected to a locking frame 19. The locking frame 19 has a U-shaped structure, and the lower side wall of the locking frame 19 is located below the locking block 16. This allows for convenient and quick disassembly of the connecting frame after damage to various components on the connecting frame, enabling component repair and improving the convenience of the operator's work.

[0032] The upper side wall of the card frame 19 has a limiting hole, and a limiting pin 20 is inserted into the limiting hole. The upper side wall of the sliding block 17 has a limiting groove that matches the limiting pin 20. The upper end of the limiting pin 20 is fixedly connected to a pull plate 21. The pull plate 21 and the side wall of the card frame 19 on the opposite side are fixedly connected to the same spring, which improves the stability of the card frame 19.

[0033] A pull ring 22 is fixedly connected to the upper side wall of the pull plate 21 to facilitate pulling the pull plate 21.

[0034] A connecting component is inserted into the side wall of the upper mounting cover 2, and a temperature sensor 23 is inserted into the connecting component to facilitate oil temperature detection.

[0035] Both the fixed pipe 3 and the installation pipe 4 are fixedly connected to a sealing waterproof gasket 24 at opposite ends, which improves the sealing performance between the fixed pipe 3 and the installation pipe 4.

[0036] The inlet and outlet pipes 10 are equipped with control valves to facilitate the opening and closing of the inlet and outlet pipes 10.

[0037] A filter screen 25 is fixedly connected to the inner wall of the inlet / outlet pipe 10. A circular plate 26 is fixedly connected to the inner wall of the filter screen 25. A rotating rod 27 is rotatably connected to the side wall of the circular plate 26. A spiral blade 28 is fixedly connected to the lower end of the rotating rod 27. A working rod 29 is fixedly connected to the side wall of the inlet / outlet pipe 10. The working rod 29 and the rotating rod 27 are connected by a bevel gear assembly. A cam 30 is fixedly connected to the right end of the working rod 29. A placement plate 31 is fixedly connected to the right side wall of the inlet / outlet pipe 10. A vertical cylinder 32 is fixedly connected to the upper side wall of the placement plate 31. A sliding seat 33 is fixedly connected to the lower inner wall of the vertical cylinder 32 by a spring. A lifting plate 34 is fixedly connected to the right side wall of the sliding seat 33. The side wall of the vertical cylinder 32 is provided with a section for the lifting plate 34. The lifting ports are matched, with the right side wall of the lifting plate 34 extending out and fixedly connected to a pressing plate 35. A round tube 36 is fixedly connected to the lower side wall of the pressing plate 35. A short tube 37 is fixedly connected to the right side wall of the round tube 36. An airbag 38 is fixedly connected to the lower side wall of the round tube 36. A vertical tube 39 is fixedly connected to the lower side wall of the airbag 38. Both the short tube 37 and the vertical tube 39 are equipped with one-way valves. The lower end of the vertical tube 39 passes through the side wall of the placement plate 31 and is fixedly connected to a horizontal box 40. A vent 41 is opened on the left side wall of the horizontal box 40. A short plate 42 is fixedly connected to the inner wall of the horizontal box 40. A piston plate 43 is fixedly connected to the right side wall of the short plate 42 via a spring. A long guide plate 44 is fixedly connected to the left side wall of the piston plate 43. Multiple short guide plates 45 are embedded in the upper inner wall. Multiple cover frames 46 are fixedly connected to the upper side wall of the upper mounting cover 2. A take-up roller 47 is rotatably connected to the side wall of the cover frame 46. A motor 48 is fixedly connected to the side wall of the cover frame 46. The long guide plate 44 is electrically connected to an external power supply. The short guide plates 45 are electrically connected to the corresponding motors 48 one by one through a PLC controller 49. The output end of the motor 48 passes through the side wall of the cover frame 46 and is fixedly connected to the take-up roller 47. A pull rope 50 is fixedly sleeved on the rod wall of the take-up roller 47. A placement box 51 is fixedly connected to the lower end of the pull rope 50. Sliding blocks 52 are fixedly connected to the inner walls of the left and right sides of the placement box 51 by springs. Electric contact plates 53 are fixedly connected to the upper and lower side walls of the sliding blocks 52. Two electrical contacts 54 are embedded in the lower side wall of box 51. A sensor box 55 is fixedly connected to the side wall of tank 1. A top plate 56 is fixedly connected to the upper inner wall of sensor box 55 by a spring. A connecting shaft 57 is fixedly connected to the lower side wall of top plate 56. A permanent magnet plate 58 is fixedly connected to the lower end of connecting shaft 57. An electromagnetic plate 59 is fixedly connected to the lower inner wall of sensor box 55. Electrical contacts 53 are electrically connected to an external power supply. Electrical contacts 54 are electrically connected to electromagnetic plate 59. An installation ring 60 is fixedly connected to the inner wall of sensor box 55. A push switch 61 is fixedly connected to the upper side wall of installation ring 60. The push switch 61 is electrically connected to PLC controller 49. When the level gauge is used to detect the oil level, the oil level can be quickly calmed down.

[0038] The operating principle of this invention is explained as follows: Because this standard metal measuring instrument is a level-compensated type, in practical applications, it is necessary to record three liquid level heights, take their average value, and calculate and find a suitable position equal to the average liquid level to install the level gauge, so as to ensure that the reading is always equal to the average of the three liquid level heights. The specific position determination method is as follows: Let the values ​​of the three reading verniers of the cylindrical measuring neck be H1, H2, and H3, and let H1 = X + a, H2 = X + b, and H3 = X + c, where X is the height of the standard cylinder volume, and the remaining a, b, and c constitute the cylinder volume. Among them, a, b, and c must fall within the arcs la, lb, and lc, respectively. With the center of the circle as the origin of the coordinate system, the polar coordinates of a are... The polar coordinates of b are The polar coordinates of c are The ordinate of the rectangular coordinate system corresponding to the origin of the circle is ya = yb= yc= .

[0039] Where a= b= c= .

[0040] a + b + c = = .

[0041] Therefore, the average of the three liquid levels, H1, H2, and H3, is equal to the liquid level reading at the center of the measuring neck. Therefore, the measuring part of the level gauge should be installed at the exact center of the measuring neck.

[0042] During the process of adding oil from the drain port, the presence of structure 12 creates a space at the bottom of the standard metal measuring vessel that is smaller at the bottom and larger at the top. This effectively reduces the flow rate of the oil entering the drain port at high speed. Furthermore, since this structure lacks an upper structure, there is no space for gas accumulation. During the draining process, structure 12 and tank 1 are made of the same material, and the angle of inclination of its slope is greater than the angle of the cone at the bottom of the tank, allowing all liquid to be drained.

[0043] Set the standard for liquid level acquisition. After the oil filling begins, record the changes in liquid level continuously. If the liquid level does not change within half a minute, record the reading H1 of the liquid level gauge at this time.

[0044] 2. Set the temperature acquisition standard. After the liquid height H1 is acquired, time it for five minutes. After the timer ends, start recording the temperature T and record H2 again (this value is used in the final calculation).

[0045] 3. Temperature T and liquid level H2 will be transmitted to the explosion-proof mobile phone held by the calibration personnel via Bluetooth.

[0046] 4. Input atmospheric pressure, pressure gauge value of the oil dispensing device, temperature of the oil dispensing device, preset oil dispensing value, etc.

[0047] 5. Applying the formula, each measurement requires the pressure value of the auxiliary oil device. This pressure gauge is installed on the auxiliary oil device pipeline, and the calibrator cannot specify its specifications and location, thus requiring manual input. Therefore, this system only requires manual input of all data (liquid level, temperature, pressure), automatically calculates and generates the data, and outputs the final data.

[0048] When oil is conveyed into tank 1 through inlet / outlet pipe 10, the flowing oil drives the spiral blade 28 to rotate. The spiral blade 28 drives the rotating rod 27 to rotate. The rotating rod 27 drives the working rod 29 to rotate through the bevel gear assembly. The working rod 29 drives the cam 30 to rotate. During the rotation of the cam 30, the pressing plate 35 moves downward. Under the push of the spring and the sliding seat 33, when the convex part of the cam 30 moves upward, the pressing plate 35 moves upward under the push of the spring. When the pressing plate 35 moves downward, it drives the round pipe 36 to squeeze the air bag 38. The air bag 38 will transport a part of the gas through the vertical pipe 39 into the horizontal box 40. Through the one-way valve inside the vertical pipe 39 and the short pipe 37, the gas can only enter the horizontal box 40, thus... This increases the gas volume inside the transverse chamber 40. Some of the gas escapes through the vent 41, while the majority of the gas pushes the piston plate 43 to the right. The piston plate 43 then moves the long guide plate 44 to the right. When the oil delivery speed is high, the amount of gas entering the transverse chamber 40 increases, and the piston plate 43 moves further to the right. The piston plate 43 then causes the long guide plate 44 and the short guide plate 45 to come into contact. The long guide plate 44 is electrically connected to an external power source, and the short guide plate 45 is electrically connected to the corresponding motor 48 via the PLC controller 49. After the long guide plate 44 and the short guide plate 45 come into contact, the PLC controller 49 can control the motor 48 to rotate forward, driving the take-up roller 47 to rotate. This causes the pull rope 50 on the outside of the take-up roller 47 to descend, and the pull rope 50 drives... The placement box 51 falls onto the oil surface. The cover frame 46 is a sealed mechanism. The upper side wall of the placement box 51 is conical, and the inner wall of the tank 1 has conical grooves that match the conical surface. This ensures the sealing of the cover frame 46, preventing oil from entering and affecting the stability of oil measurement. The placement box 51 is normally stored inside the cover frame 46. When a large amount of oil is injected into the tank 1, a certain amount of gas can be stored inside the cover frame 46 to prevent oil from entering. When there are large ripples on the oil surface, multiple placement boxes 51 can be used. The placement boxes 51 float on the oil surface, and the friction between the placement boxes 51 and the liquid molecules slows down the propagation speed of the waves, preventing them from spreading rapidly and reducing ripple formation. When the ripples continue, the placement box 51 will slide, and the sliding block 52 inside the placement box 51 will slide left and right. The sliding block 52 will drive the electric contact plate 53 and the electric contact block 54 to make contact. The electric contact plate 53 is electrically connected to the external power supply, and the electric contact block 54 is electrically connected to the electromagnetic plate 59, thereby connecting the circuit of the electromagnetic plate 59, allowing current to enter the electromagnetic plate 59, causing the electromagnetic plate 59 to generate magnetism. The electromagnetic plate 59 will attract the permanent magnet plate 58, and the permanent magnet plate 58 will drive the connecting shaft 57 and the top plate 56 to move downwards. The top plate 56 presses a push switch 61 on one side. The push switch 61 is electrically connected to the PLC controller 49. Each time the push switch 61 is pressed, it will send an electrical signal to the PLC controller 49. The PLC controller 49 will not control the motor 48 to rotate in reverse.When there is no signal for an extended period, indicating that the oil surface is relatively calm, the PLC controller 49 will control the motor 48 to rotate in the opposite direction, retracting the pull rope 50. This allows the placement box 51 to be retrieved to its original position. This ensures that the oil surface quickly calms down when oil is injected into the tank 1, preventing fluctuations in the oil surface from affecting the accuracy of the level gauge when measuring the oil level.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic calibration system for fuel dispensing control devices, comprising a tank (1), characterized in that, The upper and lower side walls of the tank (1) are fixedly connected to mounting covers (2). The upper side wall of the mounting cover (2) is fixedly connected to a fixing pipe (3). The upper end of the fixing pipe (3) is connected to a mounting pipe (4) through a connecting mechanism. The upper end of the mounting pipe (4) is fixedly connected to a connecting bracket (5). The upper side wall of the connecting bracket (5) is fixedly connected to a fixing platform (6). The upper side wall of the fixing platform (6) is fixedly connected to a mounting platform (7) by bolts. The upper side wall of the mounting platform (7) is fixedly connected to a level gauge information transmission system (8). The level gauge information transmission system (8) is equipped with a level gauge installation part. 9) The lower side wall of the mounting cover (2) located on the lower side is fixedly connected to the inlet and outlet pipes (10). The inner wall of the mounting cover (2) located on the lower side is fixedly connected to multiple connecting seats (11). The upper side walls of the multiple connecting seats (11) are all fixedly connected to support frames, and the upper ends of the multiple support frames are fixedly connected to the same structure (12). The structure (12) is two cones welded together. The circular diameter of the structure (12) should be greater than 3 times the diameter of the outlet, and the cone angle should be less than 120°. The lower end of the structure (12) is 2cm away from the outlet plane, and the upper end of the structure (12) is more than 50cm away from the bottom of the level gauge.

2. The automatic calibration vehicle system for the fuel dispensing control device according to claim 1, characterized in that, The connecting mechanism includes connecting rings (13) fixedly sleeved on the outer walls of the fixed tube (3) and the mounting tube (4). Two connecting rings (13) are fitted with two hinged covers (14). The side walls of the covers (14) away from the hinge are respectively fixedly connected to a sliding frame (15) and a block (16). The inner wall of the sliding frame (15) is fixedly connected to a sliding block (17) by a spring. The upper side wall of the sliding block (17) is fixedly connected to a sliding plate (18). The upper side wall of the sliding frame (15) has a sliding opening that matches the sliding plate (18). The upper side wall of the sliding plate (18) extends out of the sliding opening and is fixedly connected to a frame (19). The frame (19) has a U-shaped structure, and the lower side wall of the frame (19) is located below the block (16).

3. The automatic calibration vehicle system for the fuel dispensing control device according to claim 2, characterized in that, The upper side wall of the card frame (19) has a limiting hole, and a limiting pin (20) is inserted into the limiting hole. The upper side wall of the sliding frame (15) has a limiting groove that matches the limiting pin (20). The upper end of the limiting pin (20) is fixedly connected to a pull plate (21). The pull plate (21) and the side wall of the card frame (19) on opposite sides are fixedly connected to the same spring.

4. The automatic calibration vehicle system for the fuel dispensing control device according to claim 3, characterized in that, A pull ring (22) is fixedly connected to the upper side wall of the pull plate (21).

5. The automatic calibration vehicle system for the fuel dispensing control device according to claim 1, characterized in that, A connecting component is inserted into the side wall of the mounting cover (2) described above, and a temperature sensor (23) is inserted into the connecting component.

6. The automatic calibration vehicle system for the fuel dispensing control device according to claim 2, characterized in that, Both the fixed tube (3) and the installation tube (4) are fixedly connected to a sealing waterproof gasket (24) at one end.

7. The automatic calibration vehicle system for the fuel dispensing control device according to claim 1, characterized in that, The inlet and outlet pipes (10) are equipped with control valves.

8. The automatic calibration vehicle system for the fuel dispensing control device according to claim 1, characterized in that, A filter screen (25) is fixedly connected to the inner wall of the inlet / outlet pipe (10). A circular plate (26) is fixedly connected to the inner wall of the filter screen (25). A rotating rod (27) is rotatably connected to the side wall of the circular plate (26). A spiral blade (28) is fixedly connected to the lower end of the rotating rod (27). A working rod (29) is fixedly connected to the side wall of the inlet / outlet pipe (10). The working rod (29) and the rotating rod (27) are connected by a bevel gear assembly. A cam (30) is fixedly connected to the right end of the working rod (29). A placement plate (31) is fixedly connected to the right side wall of the inlet / outlet pipe (10). A vertical cylinder (32) is fixedly connected to the upper side wall of the placement plate (31). The lower inner wall of the vertical cylinder (32) is fixed by a spring. A sliding seat (33) is fixedly connected to the vertical cylinder (32). A lifting plate (34) is fixedly connected to the right side wall of the sliding seat (33). A lifting port matching the lifting plate (34) is opened on the side wall of the vertical cylinder (32). The right side wall of the lifting plate (34) extends out of the lifting port and is fixedly connected to a pressing plate (35). A round tube (36) is fixedly connected to the lower side wall of the pressing plate (35). A short tube (37) is fixedly connected to the right side wall of the round tube (36). An airbag (38) is fixedly connected to the lower side wall of the round tube (36). A vertical tube (39) is fixedly connected to the lower side wall of the airbag (38). A one-way valve is provided in both the short tube (37) and the vertical tube (39). The lower end of the vertical tube (39) passes through the side wall of the placement plate (31) and is fixedly connected to the vertical tube. A horizontal box (40) is connected to the horizontal box (40). A vent (41) is provided on the left side wall of the horizontal box (40). A short plate (42) is fixedly connected to the inner wall of the horizontal box (40). A piston plate (43) is fixedly connected to the right side wall of the short plate (42) by a spring. A long guide plate (44) is fixedly connected to the left side wall of the piston plate (43). A number of short guide plates (45) are embedded in the upper inner wall of the horizontal box (40). A number of cover frames (46) are fixedly connected to the upper side wall of the mounting cover (2). A winding roller (47) is rotatably connected to the side wall of the cover frame (46). A motor (48) is fixedly connected to the side wall of the cover frame (46). The long guide plate (44) is electrically connected to an external power supply. The short guide plates (45) are controlled by a PLC. The device (49) and the corresponding motor (48) are electrically connected one by one. The output end of the motor (48) passes through the side wall of the cover (46) and is fixedly connected to the take-up roller (47). The rod wall of the take-up roller (47) is fixedly fitted with a pull rope (50). The lower end of the pull rope (50) is fixedly connected to a placement box (51). The inner walls of the left and right sides of the placement box (51) are fixedly connected with sliding blocks (52) by springs. The upper and lower side walls of the sliding blocks (52) are fixedly connected with electric contact plates (53). The lower side wall of the placement box (51) is inlaid with two electric contact blocks (54). The side wall of the tank (1) is fixedly connected with an induction box (55). The upper inner wall of the induction box (55) is fixedly connected with a top plate (56) by springs.A connecting shaft (57) is fixedly connected to the lower side wall of the top plate (56), and a permanent magnet plate (58) is fixedly connected to the lower end of the connecting shaft (57). An electromagnetic plate (59) is fixedly connected to the lower inner wall of the induction box (55). The electric contact plate (53) is electrically connected to an external power supply, and the electric contact block (54) is electrically connected to the electromagnetic plate (59). A mounting ring (60) is fixedly connected to the inner wall of the induction box (55), and a push switch (61) is fixedly connected to the upper side wall of the mounting ring (60). The push switch (61) is electrically connected to the PLC controller (49).

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