Unlock instant, AI-driven research and patent intelligence for your innovation.

An automatic compensation structure for the end seal of small-diameter straight pipe air pressure tightness test

An automatic compensation and compactness technology, applied in the direction of using liquid/vacuum for liquid tightness measurement, pipe components, pipes/pipe joints/fittings, etc. It can improve the test efficiency and accuracy, and ensure the effect of 0 false positive rate.

Inactive Publication Date: 2017-01-11
ANJI HENGSHENG THERMAL MACHINERY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention still cannot solve the problem of misjudgment of test results caused by differences in length and port flatness between multiple tubes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An automatic compensation structure for the end seal of small-diameter straight pipe air pressure tightness test
  • An automatic compensation structure for the end seal of small-diameter straight pipe air pressure tightness test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Such as figure 1 As shown, this embodiment includes a length correction device 1 for adapting to the length of the straight pipe and correcting the length of the straight pipe, and a port correction device 2 installed in the length correction device 1 for correcting the flatness of the nozzle of the straight pipe , the center position of the length correction device 1 is provided with a guide pin shaft 3 which is used to guide the movement direction of the length correction device 1 to ensure the rapid response and positioning accuracy of the length correction device 1, and the guide pin shaft 3 is away from the port correction device 2 One end is sleeved with the guide pin 3, which can stabilize the structure of the sleeve 4 when the length correction device 1 is working. Compress the locking piece 5 of the sleeve, the locking piece 5 is two nuts of the same siz...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an automatic compensating structure for end part sealing of a small-diameter straight pipe in an air pressure density test. The automatic compensating structure is characterized in that a guide hinge pin is arranged through a center of a length compensating device by a sleeving manner; a sleeve sleeves one end of the guide hinge pin, far from an end port compensating device; a locking pressing part is arranged at the rear end of the sleeve; a sealing device is arranged at the head of the other end of the guide hinge pin; a moving compacting platform is arranged below the guide hinge pin. According to the automatic compensating structure for the end part sealing of the small-diameter straight pipe in the air pressure density test, the structure is simple, the out-of-flatness end head surface of the pipe and the length error among a plurality of pipes can be compensated and modified to ensure the air tightness.

Description

technical field [0001] The invention relates to the field of pipeline test equipment, in particular to an automatic compensation structure for the end seal of a small-diameter straight pipe air pressure tightness test. Background technique [0002] Most of the pipe fittings need to be tested for air tightness after they are manufactured to detect whether there are leaks in the pipe fittings under the specified pressure. The current detection of air tightness of pipe fittings often causes air leakage due to the unevenness of the ports of the pipe fittings during the multi-pipe test, rather than the leak point of the pipe fitting itself, which leads to misjudgment, and multi-pipe testing At this time, the length difference between the multiple tubes causes the short tubes to fail to be compressed and leak air, resulting in misjudgment. [0003] As another example, an airtightness testing device for pipe fittings disclosed in the invention patent application with the authorize...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02F16L55/10
Inventor 施嘉盛施文明卢刚
Owner ANJI HENGSHENG THERMAL MACHINERY