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Spring pre-tightening pipe hoop

A technology of pre-tightening tubes and pre-tightening springs, which is applied in the direction of pipes/pipe joints/fittings, sleeves/sockets, passing components, etc., and can solve problems such as high labor intensity and medium leakage

Active Publication Date: 2013-09-04
CHINA YANGTZE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the pipe clamps used on the pipeline generally use bolts to connect two or more even-numbered pipe clamps together, and manual pre-tightening is often required, otherwise the medium in the pipeline will leak, resulting in labor-intensive manual inspection.

Method used

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  • Spring pre-tightening pipe hoop

Examples

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Effect test

Embodiment Construction

[0010] Such as figure 1 As shown, a spring preloaded pipe collar includes a left valve collar 24, a right valve collar 12, a left valve seat 2, and a right valve seat 13; an inner rubber ring 11 is provided between the left valve collar 24 and the right valve collar 12. A left wedge-shaped arc plate 23 is arranged on the inner side of the left valve hoop 24 , and a right wedge-shaped arc plate 10 is arranged on the inner side of the right valve hoop 12 .

[0011] The upper end of the left valve hoop 24 is provided with the upper left tight surface 4, and the lower end of the left valve hoop 24 is provided with the lower left tight surface 20; the upper end of the right valve hoop 12 is provided with the upper right tight surface 7, and the lower end of the right valve hoop 12 is provided with the lower right Top tight surface 18. The left lobe pre-tightening bolt 1 passes through the left lobe seat 2, the left pre-tightening spring 3, the lower left tightening surface 20, the...

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PUM

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Abstract

A spring pre-tightening pipe hoop comprises a left petal hoop, a right petal hoop, a left petal seat and a right petal seat. An inner rubber ring is arranged between the left petal hoop and the right petal hoop, a left wedge-shaped arc plate is arranged under the inner side of the left petal hoop, a right wedge-shaped arc plate is positioned above the inner side of the right petal hoop, a left pre-tightening bolt sequentially penetrates through the left petal seat, a left pre-tightening spring, the upper end of the left petal hoop and the upper end of the right petal hoop to be fixed, and a right pre-tightening bolt sequentially penetrates through the right petal seat, a right pre-tightening spring, the lower end of the right petal hoop and the lower end of the left petal hoop to be fixed. The spring pre-tightening pipe hoop can simultaneously screw up an upper nut and a lower nut to enable the left petal seat and the right petal seat to compress the left pre-tightening spring and the right pre-tightening spring together, sufficient pre-tightening elastic force can be generated, the pre-tightening elastic force can be acted on the inner rubber ring all the time, and the technical effect that the inner rubber ring can seal a pipeline opening without manually pre-tightening bolts regularly is achieved.

Description

technical field [0001] The invention relates to a spring pre-tightening pipe clamp, which is used for pre-tightening in fields such as electric power and chemical industry. Background technique [0002] At present, the pipe clamps used on the pipeline generally use bolts to connect two or more even-numbered pipe clamps together, and often need to be manually pre-tightened, otherwise the medium in the pipeline will leak, resulting in labor-intensive manual inspection. Fields such as electric power and chemical industry need a kind of pipe collar that does not need manual pretightening regularly for this reason. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a spring pre-tightened pipe collar, which can seal the pipe mouth without manually pre-tightening the bolts periodically. [0004] The above object of the present invention is achieved by such a technical solution: a spring pre-tensioned pipe collar, inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L21/06
Inventor 刘连伟陈钢段开林朱兵
Owner CHINA YANGTZE POWER
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