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Air inlet and outlet device for telescopic ladder

A technology of exhaust device and air inlet and exhaust hole, which is applied in the direction of ladders, buildings, building structures, etc., can solve the problems of large space occupation, complex production process, large space for ladders, etc., to reduce air loss, easy to use, simple structure

Inactive Publication Date: 2017-09-22
贾胜完
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ladders are often used in daily life and in various operations that require climbing, but ladders have a large space, are heavy, and are inconvenient to carry and move
It is known that various telescopic metal ladders have been invented at present, which solves the defects of large space occupation and inconvenient carrying, but the production process is relatively complicated, especially when the connector device needs to be aligned with the two designed vacancies during assembly. , used to fix the bolts, which brings a lot of inconvenience to the operators

Method used

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  • Air inlet and outlet device for telescopic ladder
  • Air inlet and outlet device for telescopic ladder
  • Air inlet and outlet device for telescopic ladder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: as figure 1 , figure 2 , image 3 and Figure 4 As shown, a telescopic ladder connection structure is a telescopic ladder air intake and exhaust device.

[0021] A telescopic ladder connection structure, the inner cavity of the first metal pipe 1 is connected to the second metal pipe 2, the second metal pipe 2 has a pin hole 3, a second air intake and exhaust hole 4, and the pipe plug 10 has a first sealing ring groove 13. The second seal ring groove 14, the bolt connection groove 7, the bolt guide groove 9, the inlet and exhaust holes 6, the bolt limiting rib 12,

[0022] The pipe plug 10 is installed in the inner cavity of the second metal pipe 2 by connecting the first sealing ring 5 in the first sealing ring groove 13, and the pipe plug 10 is installed in the second metal pipe 2 by connecting the second sealing ring 11 in the second sealing ring groove 14. The inner cavity of a metal pipe 1 , the pipe plug 10 is fixedly connected with the second m...

Embodiment 2

[0023] Embodiment 2: as figure 1 , figure 2 , image 3 and Figure 4 As shown, a telescopic ladder connection structure, the first sealing ring groove 13 and the second sealing ring groove 14 are designed at both ends of the pipe plug 10 for sealing and reducing air loss.

[0024] Intake and exhaust holes 6: hidden inlet and exhaust holes 6 are designed on the pipe plug 10 to assist the second metal pipe 2 and the first metal pipe 1 to perform air intake and exhaust. When stretching, the inlet and outlet holes 6 inhale air. When the upper and lower tubes of the ladder stretch, the inlet and exhaust holes 6 slowly discharge the air in the tubes. The air buffer principle is used to prevent the ladder from suddenly stretching. The space stretches to the end.

[0025] The second metal pipe 2 has a second air intake and exhaust hole 4, a first bolt fixing hole 15 and a second bolt fixing hole 16; the second air intake and exhaust hole 4 is mainly responsible for air intake and...

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Abstract

The invention discloses an air inlet and outlet device for a telescopic ladder and belongs to the technical field of telescopic ladder connecting structures. An inner cavity of a first metal tube is connected with a second metal tube. The second metal tube is provided with hinge pin holes, a second air inlet and outlet hole, a first bolt fixing hole and a second bolt fixing hole. A tube plug is provided with a first sealing ring groove, a second sealing ring groove, a bolt connecting groove, a bolt guide groove, an air inlet and outlet hole and a bolt limiting rib. The tube plug is installed in an inner cavity of the second metal tube through the connection with a first sealing ring in the first sealing ring groove. The tube plug is installed in the inner cavity of the first metal tube through the connection with a second sealing ring in the second sealing ring groove. The tube plug penetrates through the first bolt fixing hole and the second bolt fixing hole and is fixedly connected with the second metal tube through bolts. The air inlet and outlet device for the telescopic ladder has the advantages of being convenient to use and simple in structure.

Description

technical field [0001] The invention relates to a telescopic ladder air intake and exhaust device, belonging to the technical field of telescopic ladder connection structures. Background technique [0002] Ladders are often used in daily life and in various operations that require climbing. However, ladders have a large space, are heavy, and are inconvenient to carry and move. It is known that various telescopic metal ladders have been invented at present, which solves the defects of large space occupation and inconvenient carrying, but the production process is relatively complicated, especially when the connector device needs to be aligned with the two designed vacancies during assembly. , to fix the bolts, which brings a lot of inconvenience to the operators. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a retractable ladder air intake and exhaust device. [0004] A telescopic ladder connectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06C1/12E06C7/04E06C7/50E06C7/00
CPCE06C1/125E06C7/00E06C7/04E06C7/50
Inventor 贾胜完
Owner 贾胜完