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Gasket and sealing structure

A technology for gaskets and components, applied in the field of gaskets and sealing structures, can solve problems such as poor assembly operability, difficulty in maintaining sealing performance stably, and achieve the effect of improving sealing performance

Inactive Publication Date: 2016-06-22
NOK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to improve the positioning accuracy of the device 500 and the piping 600 and the dimensional accuracy of the gasket 800, and it is difficult to maintain the sealing performance stably.
Furthermore, when the main body portion 610 of the pipe 600 is inserted into the insertion hole 520 of the device 500, the edge of the opening of the insertion hole 520 comes into contact with the gasket 800 ( Figure 8 Among them, refer to the arrow X), there is also a problem of poor assembly workability

Method used

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  • Gasket and sealing structure
  • Gasket and sealing structure
  • Gasket and sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Reference figure 1 with figure 2 , The gasket and sealing structure of Embodiment 1 of the present invention will be described. figure 1 It is a partially broken cross-sectional view of the gasket of Embodiment 1 of the present invention. figure 2 It is a schematic cross-sectional view showing the sealing structure of Example 1 of the present invention.

[0049]

[0050] Especially reference figure 1 , The gasket 100 of this embodiment will be described. The gasket 100 of the present embodiment is suitable for suppressing the leakage of gases having the property of dissolving rubber materials such as chlorofluorocarbon gas and hydrogen gas. In addition, the gasket 100 is composed of an annular member made of rubber.

[0051] The gasket 100 has: an annular and flat gasket body 110; from the gasket body 110 to figure 1 The first annular convex portion 120 protruding from the upper middle; and the second annular convex portion 130 protruding from the inner side of the gas...

Embodiment 2

[0062] in image 3 with Figure 4 Example 2 of the present invention is shown in. With regard to the gasket and sealing structure of this embodiment, since the basic structure and function are the same as those of the first embodiment, the same reference numerals are given to the same constituent parts, and the description thereof is appropriately omitted. image 3 It is a partially broken cross-sectional view of the gasket of the second embodiment of the present invention. Figure 4 It is a schematic cross-sectional view showing the sealing structure of Example 2 of the present invention.

[0063]

[0064] Especially reference image 3 The gasket 100a of this embodiment will be described. As in the first embodiment, the gasket 100a of the present embodiment is suitable for suppressing the leakage of gases having properties of dissolving rubber materials such as chlorofluorocarbon gas and hydrogen gas. In addition, as in Example 1, the gasket 100a is made of a rubber ring member....

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Abstract

The purpose of the present invention is to provide a gasket and a sealing structure which enable an improvement in sealing performance with respect to a gas having a property that dissolves rubber materials, and which enable such improvement without impacting assembly workability. A gasket (100) is characterized by including the following: a gasket main body (110) that is compressed towards an opposing surface (620) by an end surface (510) of a device (500); a first annular protrusion (120) that projects from the gasket main body (110) towards the device (500), is compressed towards the opposing surface (620) by a chamfered section (530), and that has a curved surface which is tapered towards the tip end of the annular protrusion; and a second annular protrusion (130) that projects from the gasket main body (110) towards an inner circumferential surface side and is compressed towards the radial direction outer side by a body part (610).

Description

Technical field [0001] The present invention relates to a gasket and a sealing structure for inhibiting the leakage of chlorofluorocarbon gas, hydrogen gas and other gases having the property of dissolving rubber materials. Background technique [0002] In order to suppress the gas leakage at the location where the gas supply pipe is installed, a gasket is provided (see Patent Documents 1 and 2). Reference Image 6 , Describe the sealing structure of the prior art. Image 6 It is a schematic cross-sectional view of a prior art sealing structure. [0003] The device 500 to which the piping 600 is attached is provided with an insertion hole 520 that opens at the end surface 510 on the side where the piping 600 is attached. In addition, the pipe 600 is provided with a main body portion 610 inserted into the insertion hole 520 and a facing surface 620 facing the end surface 510 of the device 500. In addition, a chamfered portion 530 is provided between the end surface 510 of the device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10F16L23/036
CPCF16J15/062F16J15/106F16L21/02F16J15/025
Inventor 于楠
Owner NOK CORP