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Sealing element and compression type packer

A technology of seals and sealing bodies, which is applied in the directions of sealing/isolation, engine sealing, engine components, etc., can solve the problems of seals that cannot be sealed, and achieve the effects of preventing insufficient deformation, improving compression resilience, and improving sealing performance.

Active Publication Date: 2015-12-16
TIANDING SEALING TECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One purpose of the present invention is to improve the deformation ability of the seal and prevent the seal from being unable to seal due to insufficient deformation

Method used

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  • Sealing element and compression type packer
  • Sealing element and compression type packer
  • Sealing element and compression type packer

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Embodiment Construction

[0051] like figure 2 As shown, the present invention provides a seal 100, the seal 100 basically includes a ring-shaped elastic seal body 20, the seal body 20 includes a through hole 60, a sealing surface 101, an inner force-bearing surface 50, a shaft To the force surface 70.

[0052] Wherein, the through hole 60 runs through the sealing body 20 . The through hole 60 can be slidably connected with a through shaft, that is, the through shaft is sleeved in the through hole 60 to limit the overall movement direction of the sealing body 20 to the axial direction.

[0053] Wherein, the sealing surface 101 is formed on the axially extending outer surface 10 of the sealing body 20 .

[0054] Wherein, the inner force-bearing surface 50 is formed on the inner surface extending axially of the sealing body 20 and is close to the end of the sealing body 20, the inner force-bearing surface 50 is arranged around the through hole 60, so The inner force-receiving surface 50 shrinks gradu...

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Abstract

The invention relates to the field of sealing, in particular to a sealing element and a compression type packer provided with the sealing element. The sealing element comprises a sealing body, wherein the sealing body comprises a through hole, a sealing surface, an inner side stress surface and an axial stress surface; the through hole penetrates through the sealing body; the sealing surface is formed on the outer surface; the inner side stress surface is formed on the inner surface, is near the end part of the sealing element and is arranged in a way of surrounding the through hole; the inner side stress surface gradually contracts from outside to inside, so that the inner side stress surface is integrally in a reducing shape; the axial stress surface is formed on the side wall; and when the axial stress surface is axially extruded, and the inner side stress surface is outwards extruded, the outer surface is radially projected, so that the sealing surface formed on the outer surface is driven to be radially projected for sealing. According to the sealing element provided by the invention, the axial stress surface and the inner side stress surface can be extruded to deform at the same time, so that the deformation capability of the sealing element is improved; and the problem of sealing incapability due to insufficient deformation of the sealing element is effectively prevented.

Description

technical field [0001] The invention relates to the sealing field, in particular to a sealing element and a compression packer with the sealing element. Background technique [0002] Sealing materials refer to materials that can withstand joint displacement to achieve airtight and watertight purposes and are embedded in building joints. Seal materials include metal materials (aluminum, lead, indium, stainless steel, etc.), non-metallic materials (rubber, plastic, ceramics, graphite, etc.), composite materials (such as rubber-asbestos board, airgel felt-polyurethane), but The most used is rubber-like elastomer material. [0003] When the seal needs to withstand a certain pressure to make it deform to seal, it is necessary to consider the deformation capacity of the seal itself. If the deformation is insufficient, it will not be able to perform the sealing function; if the deformation is too large, it may cause the seal to collapse due to crushing. failure, loss of resilienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/128F16J15/06
Inventor 励行根蔡勇王玉妹
Owner TIANDING SEALING TECH BEIJING CO LTD
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