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Fuel tank cap convenient to open and close

A kind of fuel tank cap, convenient technology, applied in the direction of cover with auxiliary device, seal with opening device, closing, etc. The effect of low friction and force reduction

Active Publication Date: 2022-02-08
浙江康思特动力机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the fuel tank cap closes the fuel tank port, in order to limit the volatilization of the fuel vapor in the fuel tank to the atmosphere, a certain pressure must be met after installation, and at the same time, the force of tightening and unscrewing the fuel tank cap should not be too strong to cause it to be unable to use normally
The current fuel tank cap structure achieves the above functions through the matching of the first internal spring, but because the greater the spring force, the greater the pressure after installation, the greater the tightening force, and the greater the pressure after installation, it is impossible to tighten and tighten. The function that the lower velocity becomes smaller

Method used

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  • Fuel tank cap convenient to open and close
  • Fuel tank cap convenient to open and close
  • Fuel tank cap convenient to open and close

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: a kind of fuel tank cover that is convenient to open and close, as figure 1 and to image 3 As shown, it includes the inner cover 1, the first rubber gasket 2 arranged on the inner cover 1 and used to press against the edge of the fuel tank port, the locking piece 3 arranged on the inner cover 1, the inner cover 1 and the locking piece 3 and the first spring 4 that drives the locking piece 3 to move towards the direction of the first rubber gasket 2, the outer cover 5 that is tightly fastened and fixed on the inner cover 1, is arranged on the upper surface of the inner cover 1 and is pressed against the outer cover 5 The inner second rubber gasket 6, the middle part of the inner cover 1 is formed with a recessed part 11 which is recessed downwards and has movable grooves 12 on both sides.

[0027] Such as figure 2 and image 3 As shown, a through hole 51 is provided in the middle of the outer cover 5, and a flexible sealing sheet 52 is fixedly arranged...

Embodiment 2

[0029] Embodiment 2: a kind of fuel tank cover that is convenient to open and close, as image 3 and Figure 4 As shown, the difference from Embodiment 1 is that on the basis of Embodiment 1, an upper cover 81 is detachably connected to the outer cover 5, and the upper cover 81 is symmetrically provided with two One end protrudes from the pressing column 82 on the peripheral side of the upper cover 81. A second spring 83 is arranged between the pressing column 82 and the upper cover 81 to drive the pressing column 82 to move away from the middle of the upper cover 81. The upper surface of the flexible sealing sheet 52 is A linkage plate 84 magnetically adsorbed to the pressing plate 71 is provided, and a linkage structure is set between the linkage plate 84 and the two pressing columns 82 to drive the linkage plate 84 to move downward when the pressing column 82 moves toward the middle of the upper cover 81 .

[0030] Such as Figure 4 As shown, the upper surface of the outer ...

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PUM

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Abstract

The invention discloses a fuel tank cap convenient to open and close. The fuel tank cap comprises an inner cap, a first rubber gasket, a locking plate, a first spring, an outer cap and a second rubber gasket; a sunken part which is sunken downwards and provided with movable grooves in two sides is formed in the middle of the inner cap, a main body of the locking plate is positioned in the sunken part, and two ends of the locking plate are telescopically arranged in the movable grooves; a through hole is arranged in the middle of the outer cap; a flexible sealing piece is arranged at the position of the through hole; and a pressing structure which drives the locking piece to overcome the elastic force of the first spring to move downwards after the flexible sealing piece is stressed is arranged between the locking piece and the flexible sealing piece. In the tightening process of the fuel tank cap, the flexible sealing piece is pressed, so that the pressing structure overcomes the elastic force of the first spring and then drives the locking piece to move downwards, and the friction force between the locking piece and the mounting position of the fuel tank opening is reduced;then the pressing on the flexible sealing piece is released, so that the locking piece abuts against the fuel tank opening; similarly, the fuel tank cap can be conveniently unscrewed in the unscrewing process of the fuel tank cap; and finally, the force required for tightening and unscrewing the fuel tank cap can be reduced.

Description

technical field [0001] The invention relates to the technical field of fuel tank accessories, in particular to a fuel tank cap that is convenient to open and close. Background technique [0002] The fuel tank cap is installed on the fuel tank port of the fuel tank to realize the sealing of the fuel tank. The existing fuel tank cover structure includes an inner cover, a first rubber gasket arranged on the inner cover and used to be pressed against the edge of the fuel tank port, a locking piece arranged on the inner cover for lifting, a locking piece arranged between the inner cover and the locking piece, and The first spring that drives the locking plate to move towards the direction of the first rubber washer, the outer cover that is arranged on the inner cover, and the second rubber washer that is arranged on the upper surface of the inner cover and presses against the inner side of the outer cover. The middle part of the inner cover is formed with a concave part that is ...

Claims

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Application Information

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IPC IPC(8): B65D53/06B65D55/14B65D51/24B60K15/05
CPCB65D53/06B65D55/14B65D51/243B60K15/05B60K2015/0515
Inventor 孟阳悦华
Owner 浙江康思特动力机械有限公司