Vehicle refueling meter

Abstract

The invention relates to the technical field of meters, and discloses a vehicle refueling meter which comprises an inner cylinder and further comprises a movable cylinder, the movable cylinder is arranged on the outer side of the inner cylinder in a sleeving mode and slidably installed on the outer surface of the inner cylinder, and a detection cylinder is fixedly installed at the end, away from the inner cylinder, of the movable cylinder. A detection mechanism used for detecting the oil injection amount is installed in the detection cylinder. And the sealing air bag is used for sealing a gap between the muzzle of the oil gun and the inner barrel. A gun barrel of an oil injection gun is inserted into an inner barrel, the gun barrel of the oil injection gun abuts against a cushion block, a movable barrel is integrally pushed into an oil tank through a supporting rod, a piston ring is pulled downwards through a plurality of guide rods when the movable barrel moves, gas in a sealing cover is squeezed into a sealing air bag through the piston ring, and the sealing air bag is expanded; therefore, the sealing air bag can surround the gun barrel of the oil injection gun, and oil liquid is prevented from overflowing when the oil injection gun injects oil into the oil tank, and oil liquid waste is avoided.

Description

Technical Field

[0001] This invention relates to the field of metering technology, and in particular to a vehicle refueling meter. Background Technology

[0002] As the number of motor vehicles increases, so does the number of gas stations. However, due to problems with the fuel dispensers themselves or the operators deliberately tampering with the metering devices, customers often experience shortchanging when refueling.

[0003] The existing fuel tank cap type vehicle fuel meter (announcement number: CN2844855Y) has at least the following drawbacks: The above patent combines the meter with the vehicle's fuel tank opening, allowing the fuel nozzle to be inserted into the meter for refueling, while the meter detects the amount of fuel added; since the connection between the fuel nozzle and the meter is only covered by a rubber sleeve, it is difficult to achieve a sealing effect, which can easily lead to the fuel sprayed from the fuel nozzle overflowing and wasting fuel. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vehicle refueling meter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A vehicle refueling meter includes an inner cylinder and further includes: A movable cylinder is sleeved on the outside of the inner cylinder and slidably installed on its outer surface. A detection cylinder is fixedly installed at the end of the movable cylinder away from the inner cylinder. A detection mechanism for detecting the amount of oil injected is installed inside the detection cylinder. A sealing airbag is used to seal the gap between the nozzle of the refueling gun and the inner cylinder. The sealing airbag is fixedly installed on the inner circumference of the inner cylinder, and an inflation mechanism for inflating the sealing airbag is installed on the outer side of the inner cylinder.

[0006] As a further embodiment of the present invention, the detection mechanism includes a plurality of support rods uniformly fixedly installed in the circumferential direction on the inner wall of the detection cylinder, an mounting sleeve is fixedly installed between the ends of the plurality of support rods, an impeller is rotatably installed on the outer surface of the mounting sleeve, and a speed sensor for detecting the speed of the impeller is installed inside the mounting sleeve.

[0007] As a further embodiment of the present invention, the inflation mechanism includes a sealing cover fixedly installed on the outer periphery of the inner cylinder, a piston ring slidably installed on the inner wall of the sealing cover, the piston ring being sleeved on the outer side of the inner cylinder, a conduit communicating with the interior of the sealing airbag being fixedly installed on the outer surface of the sealing airbag, the conduit penetrating the outer periphery of the inner cylinder and being fixedly installed therewith, the sealing airbag communicating with the interior of the sealing cover through the conduit, and a pushing component being installed between the movable cylinder and the piston ring.

[0008] As a further embodiment of the present invention, the pushing assembly includes multiple guide rods uniformly fixedly installed on the outer periphery of the movable cylinder in a circumferential direction. The ends of the multiple guide rods away from the movable cylinder are all fixedly installed with the bottom of the piston ring, and the multiple guide rods penetrate the outer surface of the sealing cover and are slidably installed therewith.

[0009] As a further embodiment of the present invention, a return spring is installed inside the sealing cover, the return spring is sleeved on the outside of the inner cylinder, and the return spring is disposed between the piston ring and the bottom wall of the sealing cover.

[0010] As a further embodiment of the present invention, the top of the sealing cover is provided with an exhaust hole that communicates with the outside.

[0011] As a further embodiment of the present invention, the outer periphery of the sealing cover is provided with a threaded groove, and the top circumference of the sealing cover is provided with a plurality of slots that are easy to disassemble and assemble.

[0012] As a further embodiment of the present invention, pads are fixedly installed on the outer surface of the plurality of support rods near the inner cylinder.

[0013] The beneficial effects of this invention are as follows: 1. By inserting the nozzle of the oil injection gun into the inner cylinder, the nozzle of the oil injection gun abuts against the pad block, and the movable cylinder is pushed into the oil tank by the support rod. When the movable cylinder moves, the piston ring is pulled down by multiple guide rods, so that the piston ring squeezes the gas inside the sealing cover into the sealing air bladder, causing the sealing air bladder to expand so that the sealing air bladder surrounds the nozzle of the oil injection gun, preventing oil from overflowing when the oil injection gun injects oil into the oil tank, thus avoiding oil waste. 2. When the grease gun injects oil into the oil tank, the oil sprayed from the grease gun will impact the impeller to rotate, so that the speed sensor installed inside the mounting sleeve can monitor the speed of the impeller. In this way, the vehicle computer can calculate the amount of oil injected based on the number of rotations of the impeller, thus achieving the effect of detecting the amount of oil injected. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the top structure of a vehicle refueling meter proposed in this invention; Figure 2 This is a schematic diagram of the bottom structure of a vehicle refueling meter proposed in this invention; Figure 3 This is a schematic diagram of the internal structure of the sealing cover of a vehicle refueling meter according to the present invention; Figure 4 This is a schematic cross-sectional view of the detection cylinder structure of a vehicle refueling meter proposed in this invention. Figure 5This is a schematic diagram of the mounting sleeve structure of a vehicle refueling meter proposed in this invention; Figure 6 This is a cross-sectional view of the sealing cover of a vehicle refueling meter proposed in this invention; Figure 7 This is a cross-sectional view of the inner cylinder of a vehicle refueling meter proposed in this invention.

[0015] In the diagram: 1. Inner cylinder; 2. Movable cylinder; 3. Detection cylinder; 4. Support rod; 5. Mounting sleeve; 6. Impeller; 7. Speed ​​sensor; 8. Pad; 9. Sealing airbag; 10. Guide tube; 11. Sealing cover; 12. Guide rod; 13. Piston ring; 14. Return spring; 15. Exhaust port; 16. Slot. Detailed Implementation

[0016] 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.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] See attached document Figure 1 - Appendix Figure 7 A vehicle refueling meter includes an inner cylinder 1, and further includes: The movable cylinder 2 is sleeved on the outside of the inner cylinder 1 and slidably installed on its outer surface. A detection cylinder 3 is fixedly installed at the end of the movable cylinder 2 away from the inner cylinder 1. A detection mechanism for detecting the amount of oil injected is installed inside the detection cylinder 3. The sealing airbag 9 is used to seal the gap between the nozzle of the refueling gun and the inner cylinder 1. The sealing airbag 9 is fixedly installed on the inner circumference of the inner cylinder 1, and an inflation mechanism for inflating the sealing airbag 9 is installed on the outer side of the inner cylinder 1.

[0019] In this embodiment, the detection mechanism includes multiple support rods 4 that are uniformly fixedly installed on the inner wall of the detection cylinder 3 in the circumferential direction. An installation sleeve 5 is fixedly installed between the ends of the multiple support rods 4. An impeller 6 is rotatably installed on the outer surface of the installation sleeve 5. A speed sensor 7 for detecting the speed of the impeller 6 is installed inside the installation sleeve 5.

[0020] When the oil gun injects oil into the oil tank, the oil sprayed from the oil gun will impact the impeller 6 to rotate, so that the speed sensor 7 installed inside the mounting sleeve 5 can monitor the speed of the impeller 6. In this way, the vehicle computer can calculate the amount of oil injected based on the number of rotations of the impeller 6, thus achieving the effect of detecting the amount of oil injected.

[0021] In this embodiment, the inflation mechanism includes a sealing cover 11 fixedly installed on the outer periphery of the inner cylinder 1. A piston ring 13 is slidably installed on the inner wall of the sealing cover 11. The piston ring 13 is sleeved on the outer side of the inner cylinder 1. A conduit 10 communicating with the interior of the sealing airbag 9 is fixedly installed on the outer surface of the sealing airbag 9. The conduit 10 passes through the outer periphery of the inner cylinder 1 and is fixedly installed therewith. The sealing airbag 9 communicates with the interior of the sealing cover 11 through the conduit 10. A pushing assembly is installed between the movable cylinder 2 and the piston ring 13. The pushing assembly includes multiple guide rods 12 evenly fixedly installed on the outer periphery of the movable cylinder 2 in a circumferential direction. The ends of the multiple guide rods 12 away from the movable cylinder 2 are all fixedly installed with the bottom of the piston ring 13, and the multiple guide rods 12 pass through the outer surface of the sealing cover 11 and are slidably installed therewith.

[0022] In use, the device is installed at the oil tank's filling port via the threads on the outside of the sealing cover 11. After installation, the nozzle of the oil injection gun is inserted into the inner cylinder 1, so that the nozzle of the oil injection gun abuts against the pad block 8. The movable cylinder 2 is pushed into the oil tank as a whole by the support rod 4. When the movable cylinder 2 moves, the piston ring 13 is pulled down by multiple guide rods 12, so that the piston ring 13 squeezes the gas inside the sealing cover 11 into the sealing air bladder 9, causing the sealing air bladder 9 to expand. This allows the sealing air bladder 9 to surround the nozzle of the oil injection gun, preventing oil from overflowing when the oil injection gun is injecting oil into the oil tank, thus avoiding oil waste.

[0023] In this embodiment, a return spring 14 is installed inside the sealing cover 11. The return spring 14 is sleeved on the outside of the inner cylinder 1 and is located between the piston ring 13 and the bottom wall of the sealing cover 11. After the oil gun is pulled out, the return spring 14 will apply an upward thrust to the piston ring 13, so that the piston ring 13 pulls the entire movable cylinder 2 upward through the guide rod 12, thereby realizing the reset of the piston ring 13.

[0024] In this embodiment, the top of the sealing cover 11 is provided with an exhaust hole 15 that communicates with the outside. When the piston ring 13 is reset upward, the gas in the sealing cover 11 located at the top of the piston ring 13 can be discharged through the exhaust hole 15, which facilitates the reset of the piston ring 13.

[0025] In this embodiment, the outer periphery of the sealing cover 11 is provided with a threaded groove, and the top circumference of the sealing cover 11 is provided with a plurality of slots 16 for easy disassembly and assembly. When disassembling or assembling this device, the device can be rotated by inserting calipers into the slots 16 to tighten or loosen the device.

[0026] In this embodiment, multiple support rods 4 are fixedly installed with pads 8 on the outer surface of the side near the inner cylinder 1. The pads 8 support the nozzle of the oil injection gun to prevent the nozzle of the oil injection gun from being blocked by the mounting sleeve 5, which would affect the oil injection effect.

[0027] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: In use, the device is installed at the oil tank filling port through the thread on the outside of the sealing cover 11. After installation, the gun barrel of the oil gun is inserted into the inner cylinder 1, so that the gun barrel of the oil gun abuts against the pad block 8. The movable cylinder 2 is pushed into the oil tank as a whole through the support rod 4. When the movable cylinder 2 moves, the piston ring 13 is pulled down through multiple guide rods 12, so that the piston ring 13 squeezes the gas inside the sealing cover 11 into the sealing air bag 9, so that the sealing air bag 9 expands, so that the sealing air bag 9 surrounds the gun barrel of the oil gun, preventing the oil from overflowing when the oil gun is filling the oil tank, thus causing oil waste. When the oil gun injects oil into the oil tank, the oil sprayed from the oil gun will impact the impeller 6 to rotate, so that the speed sensor 7 installed inside the mounting sleeve 5 can monitor the speed of the impeller 6. In this way, the vehicle computer can calculate the amount of oil injected based on the number of rotations of the impeller 6, thus achieving the effect of detecting the amount of oil injected.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle refueling meter, comprising an inner cylinder (1), characterized in that, Also includes: The movable cylinder (2) is sleeved on the outside of the inner cylinder (1) and slidably installed on its outer surface. A detection cylinder (3) is fixedly installed at one end of the movable cylinder (2) away from the inner cylinder (1). A detection mechanism for detecting the amount of oil injected is installed inside the detection cylinder (3). A sealing airbag (9) is used to seal the gap between the nozzle of the refueling gun and the inner cylinder (1). The sealing airbag (9) is fixedly installed on the inner circumference of the inner cylinder (1). An inflation mechanism for inflating the sealing airbag (9) is installed on the outer side of the inner cylinder (1).

2. A vehicle refueling meter according to claim 1, characterized in that, The detection mechanism includes multiple support rods (4) that are uniformly fixedly installed on the inner wall of the detection cylinder (3) in the circumferential direction. An installation sleeve (5) is fixedly installed between the ends of the multiple support rods (4). An impeller (6) is rotatably installed on the outer surface of the installation sleeve (5). A speed sensor (7) for detecting the speed of the impeller (6) is installed inside the installation sleeve (5).

3. A vehicle refueling meter according to claim 2, characterized in that, The inflation mechanism includes a sealing cover (11) fixedly installed on the outer periphery of the inner cylinder (1). A piston ring (13) is slidably installed on the inner wall of the sealing cover (11). The piston ring (13) is sleeved on the outer side of the inner cylinder (1). A conduit (10) communicating with the interior of the sealing airbag (9) is fixedly installed on the outer surface of the sealing airbag (9). The conduit (10) passes through the outer periphery of the inner cylinder (1) and is fixedly installed therewith. The sealing airbag (9) communicates with the interior of the sealing cover (11) through the conduit (10). A pushing component is installed between the movable cylinder (2) and the piston ring (13).

4. A vehicle refueling meter according to claim 3, characterized in that, The pushing assembly includes multiple guide rods (12) that are uniformly fixedly installed on the outer periphery of the movable cylinder (2) in a circumferential direction. The ends of the multiple guide rods (12) away from the movable cylinder (2) are fixedly installed to the bottom of the piston ring (13), and the multiple guide rods (12) penetrate the outer surface of the sealing cover (11) and are slidably installed therewith.

5. A vehicle refueling meter according to claim 4, characterized in that, A reset spring (14) is installed inside the sealing cover (11). The reset spring (14) is sleeved on the outside of the inner cylinder (1) and is located between the piston ring (13) and the bottom wall of the sealing cover (11).

6. A vehicle refueling meter according to claim 3, characterized in that, The top of the sealing cover (11) has a through-hole (15) that communicates with the outside.

7. A vehicle refueling meter according to claim 3, characterized in that, The outer periphery of the sealing cover (11) is provided with a threaded groove, and the top circumference of the sealing cover (11) is provided with a plurality of slots (16) for easy disassembly and assembly.

8. A vehicle refueling meter according to claim 2, characterized in that, Each of the support rods (4) has a pad (8) fixedly installed on the outer surface of the side of the inner cylinder (1).

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