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Self-tightening tube body end cover sealing connection structure

A connection structure and end cover sealing technology, applied in the direction of engine sealing, filtration separation, engine components, etc., can solve the problems of loss of elastic sealing structure, excessive deformation of the sealing ring, rupture and damage of the sealing ring, etc., to prevent excessive force. , The effect of preventing excessive deformation and prolonging the service life

Active Publication Date: 2015-12-30
JIANGSU CIKON ENVIRONMENTAL APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the sealing ring in this structure bears the resultant force of all pressures acting on the end cover, the degree of deformation or force of the sealing ring becomes a function of the resultant force of all pressures acting on the end cover, so if the pressure in the housing is too large , it will definitely cause excessive deformation or excessive pressure of the sealing ring, resulting in cracking, damage or premature aging (losing elasticity) of the sealing ring, which will cause the sealing structure to fail prematurely (that is, leak), which is the deficiency of the sealing structure

Method used

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  • Self-tightening tube body end cover sealing connection structure
  • Self-tightening tube body end cover sealing connection structure
  • Self-tightening tube body end cover sealing connection structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] See Figure 1 to Figure 3 , the sealing connection structure of the self-tightening cylinder end cover of this embodiment includes a pressure bearing ring 3 and a sealing ring 4 .

[0035] A detachable connection structure is adopted between the pressure bearing ring 3 and the cylinder body 1, for example, the outside of the pressure bearing ring 3 and the inside of the opening end of the cylinder body 1 are provided with mutually matched external threads and internal threads respectively. A short cylinder 21 extends from the edge of the end cap 2 in the axial direction of the cylinder body 1 , and a circular ring 22 extends radially outward from the open end of the short cylinder 21 . The short cylinder 21 and the ring 22 are inserted into the cylinder body 1 . A first limiting step 11 is provided on the inner wall of the cylinder body 1 , and the ring 22 of the end cap 2 is limited by the first limiting step 11 . The inner side of the pressure bearing ring 3 is prov...

Embodiment 2

[0038] See Figure 4 to Figure 8 , This embodiment is basically the same as Embodiment 1, the difference is that: a decorative cover 5 and screws 6 are also included.

[0039] The decorative cover 5 is provided with a handle 51 . The screw 6 is screwed into the decorative cover 5 through the end cover 2 from the inside to the outside, so that the decorative cover 5 and the end cover 2 are fixedly connected. The plastic deformation produced on the end cover 5 when the screw 6 is screwed in between the screw 6 and the end cover 2 enables the two to realize a sealed and fixed connection.

[0040] The outer end of the pressure ring 3 and the inner end surface of the decorative cover 5 are respectively provided with ribs 33 and slots 52 that can be inserted into each other, so that the pressure ring 3 can be driven to be linked when the decorative cover 5 is rotated. Screw 6, decorative cover 5, pressure ring 3, end cover 2 and sealing ring 4 are assembled to form a covering, the...

Embodiment 3

[0044] See Figure 9 to Figure 12 , this embodiment is basically the same as Embodiment 1, the difference is that: a decorative cover 5 is also included.

[0045] The decorative cover 5 is provided with a handle 51 . The outer side of the end cover 2 is provided with a plurality of elastic claws 24 , and the inner side of the pressure receiving ring 3 is provided with an anti-off step 32 which snap fits with the elastic claws 24 . The elastic claws 24 are stuck on the anti-off step 32 on the pressure ring 3, so that the pressure ring 3 and the end cover 2 are relatively fixed, that is, the pressure ring 3 and the end cover 2 can be relatively fixed within a small range. displacement.

[0046] The decorative cover 5 is fixedly connected with the pressure ring 3, so that the pressure ring 3 can be driven to be linked when the decorative cover 5 is rotated. The decorative cover 5, the pressure ring 3, the end cover 2 and the sealing ring 4 are assembled to form a cover. The de...

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Abstract

The invention discloses a self-tightening tube body end cover sealing connection structure, which comprises a press bearing ring and a sealing ring, wherein a dismountable connecting structure is adopted between the pressure bearing ring and the tube body; a short round tube extends from the edge of the end cover in the axial direction of the tube body; a circular ring outwards extends from the opening end of the short round tube in the radial direction; the short round tube and the circular ring are inserted into the tube body; the inner side of the pressure bearing ring is provided with a second position limiting step; a position limiting shoulder is arranged in a position, corresponding to the second position limiting step, of the outer side of the end cover; the sealing ring is positioned in a space defined by the inner wall of the tube body, the end surface of the pressure bearing ring, the outer wall of the short round tube and the end surface of the circular ring. The self-tightening tube body end cover sealing connection structure has the advantages that the positive pressure in the tube body is used for tightly pressing the sealing ring; the self tightening and self sealing effects are achieved; the connecting structure is enabled not to leak when bearing the positive pressure in the tube body without or almost without the pre-tightening force.

Description

technical field [0001] The invention relates to a sealing connection structure of a self-tightening cylinder body end cover. Background technique [0002] The Chinese patent document with the application number CN201010112627.8 discloses a "self-tightening and sealing shell end connection structure", which includes an end cover, a shell, a fixing piece and a sealing ring, and the fixing piece is fixedly connected to the end of the shell , there is a pressure ring on it; a short cylinder extends from the periphery of the end cover in the axial direction of the shell, and a ring extends from the open end of the short cylinder radially outward, and the short cylinder and the ring are inserted into the shell Inside the body; the sealing ring is set between the pressure ring and the ring; when in use, there is pressure inside the shell, and the resultant force of the pressure acting on the inner side of the end cover acts on the sealing ring through the ring, and then acts on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/06B01D35/30
Inventor 徐立农黄樟焱
Owner JIANGSU CIKON ENVIRONMENTAL APPLIANCE CO LTD