sealing ring
A sealing ring and body technology, which is applied in the direction of flange connection, pipe/pipe joint/fitting, passing components, etc., can solve problems such as insufficient pressure, leakage during use, leakage, etc., and reduce the possibility of leakage Effect
Active Publication Date: 2015-09-09
启东市清源环境检测技术有限公司
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Problems solved by technology
[0002] The joints of the existing liquid delivery pipelines are generally connected by flanges. In order to prevent leakage, sealing rings are installed inside the flanges. However, the existing sealing rings are generally installed manually by workers because of limited human strength. It is difficult to have a particularly large pressing force, which may cause certain leakage during use
[0003] The compression force of the existing sealing ring on the side wall of the flange is generally fixed after installation and will not change due to changes in the internal pressure of the pipeline. Then the sealing effect of the low-pressure pipeline may be good after installation, but when When the delivery pressure of the low-pressure pipeline increases, the pressure of the sealing ring on the side wall of the flange remains unchanged, so it may be that the internal pressure is too high and the pressure of the sealing ring on the side wall of the flange is insufficient, resulting in leakage.
Method used
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[0011] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment: see Figure 1 to Figure 3 , the sealing ring, including the sealing ring body 1, the sealing ring body 1 includes a metal ring 11, the metal ring 11 is provided with a gap 2, the slider 3 is arranged in the gap 2, and the gap 2 Both sides are also provided with stoppers 21 to prevent the slider 3 from slipping out. The outer ring of the metal ring 11 is provided with a soft ring 12, and the inside of the soft ring 12 is provided with an annular cavity 121. The cavity 121 communicates with the gap 2, the cavity 121 is filled with gas, and the metal ring 11 is also provided with a channel 122, one end of the channel 122 is connected to the gap 2, and the other end is connected to the A cavity 121 , the cavity 121 is provided with sodium peroxide 4 , and the distance from the channel 122 on the notch 2 to the stopper 21 outside the notch 2 is sm...
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The invention discloses a seal ring. The seal ring comprises a seal ring body, wherein the seal ring body comprises a metal circular ring, wherein the metal circular ring is provided with a notch; a slide block is arranged in the notch; stop blocks for preventing the slide block from sliding out are also arranged on the two sides of the notch; a flexible circular ring is arranged on the outer ring of the metal circular ring; an annular cavity is arranged in the flexible circular ring; the cavity is communicated with the notch; gas is filled in the cavity. Through the structure, after the seal ring is arranged, the slide block is pushed to move outwards if the pressure intensity in a pipeline is increased and the slide block moves outwards to increase the pressure in the cavity, so that the pressing force of the seal ring on a flange is increased; if the pressure in the pipeline is reduced, the slide block also slides into the pipeline, so that the pressing force of the seal ring on the flange is reduced; in the mode, the pressure of the seal ring and the flange can flexibly change according to the pressure intensity in the pipeline, so that the probability of leakage is reduced.
Description
technical field [0001] The invention relates to the technical field of sealing fittings, in particular to a sealing ring. Background technique [0002] The joints of the existing liquid delivery pipelines are generally connected by flanges. In order to prevent leakage, sealing rings are installed inside the flanges. However, the existing sealing rings are generally installed manually by workers because of limited human strength. It is difficult to have a particularly large pressing force, which may cause certain leakage during use. [0003] The compression force of the existing sealing ring on the side wall of the flange is generally fixed after installation and will not change due to changes in the internal pressure of the pipeline. Then the sealing effect of the low-pressure pipeline may be good after installation, but when When the delivery pressure of the low-pressure pipeline increases, the pressure of the sealing ring on the side wall of the flange remains unchanged, ...
Claims
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IPC IPC(8): F16L23/18
Inventor 金忠德
Owner 启东市清源环境检测技术有限公司