Automatic fuel-tank cap sealing device capable of preventing fuel leakage caused by vibration and shaking
A technology of automatic sealing and fuel tank cap, which is applied in the direction of engine sealing, charging system, engine components, etc., can solve the problem of oil leakage at the junction of the fuel tank cap, and achieve the effects of reducing pollution, stable and reliable sealing, and saving fuel
Active Publication Date: 2014-12-31
JINTAN JINJUN POWER MACHINERY
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Problems solved by technology
For a long time, people have been eager to solve the problem of oil leakage at the junction of the fuel tank cap, but have not been able to solve it
Method used
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Embodiment 1
[0022] Embodiment 1: A kind of oil tank cap automatic sealing device that prevents vibration, shaking and oil leakage, such as Figure 2 to Figure 7 As shown, it includes a cover shell 1, a locking spring 2, a sealing plate 3, a refueling filter cup 4, a sealing spring 5, a telescopic sealing pressure sleeve plate 6, a guide pin 7, a breathable anti-overflow cover 8 and a sealing ring 9. The lower end of the side of the cover housing 1 is symmetrically provided with two clamping claws 11, and the center of the sealing plate 3 is provided with a guide hole 32. The claw 11 is used to limit the axial position, and the locking spring 2 is arranged between the sealing plate 3 and the top of the inner cavity of the cover shell 1. Sleeve 62 and pressing plate 63 are composed, the inner hole of upper guide bushing 61 is coaxial with the inner hole of lower guiding bushing 62, and the lower end surface of pressing plate 63 is perpendicular to the common axis of upper guiding bushing 61...
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An automatic fuel-tank cap sealing device capable of preventing fuel leakage caused by vibration and shaking comprises a cover shell, a closure spring, a sealing plate, a refueling filter cup, a sealing spring, a telescopic sealing pressing-sleeve plate, a guide pin and a permeable anti-overflow cover. The sealing plate is arranged in an inner cavity of the cover shell, the closure spring is arranged between the sealing plate and the cover shell, the telescopic sealing pressing-sleeve plate is sleeved with the guide pin, the sealing spring is arranged between the telescopic sealing pressing-sleeve plate and the cover shell, the refueling filter cup is arranged in a necking refueling hole of a fuel tank, and the permeable anti-overflow cover is arranged on the refueling filter cup. When the telescopic sealing pressing-sleeve plate is stretched under the action of the sealing spring, a reliable end face sealing structure is formed between the lower end face of the permeable anti-overflow cover and the upper end of the refueling filter cup. Thus, the fuel tank is sealed stably and reliably, the defect of overflow of diesel oil due to high-frequency vibration or violent shaking between the fuel tank cover and a refuel port of the oil tank is eliminated, fuel is saved, and pollution to the environment is reduced.
Description
【Technical field】 [0001] The invention relates to a diesel engine component, in particular to an oil tank cap of an oil tank of a diesel engine. 【Background technique】 [0002] The fuel tank of a diesel engine is a diesel storage part on a diesel engine. It includes a fuel tank body, a fuel tank cover, an oil filter cup, a fuel tank switch and a diesel filter. In the oil filler hole of the neck, a sealing ring is provided on the upper surface of the oil filter cup, and the fuel tank cap is clamped on the neck filler hole, and the pressure plate in the fuel tank cap is pressed against the sealing ring on the upper surface of the oil filter cup by a spring; the fuel tank switch Installed at the bottom of the fuel tank body, the diesel filter is set in the inner cavity of the fuel tank body, and installed at the oil inlet end of the fuel tank switch, and an oil delivery pipe is sealedly installed at the oil outlet end of the fuel tank switch, and the oil delivery pipe is sealed...
Claims
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IPC IPC(8): F02M37/00F16J15/02
Inventor 张水军
Owner JINTAN JINJUN POWER MACHINERY