Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Buffer device and mechanical switch

A technology of buffer device and pressure relief device, which is applied to mechanical equipment, springs, shock absorbers, etc., can solve the problem of moving contact closing and bounce, and achieve the effects of avoiding rebound, promoting deceleration, and improving dynamic performance.

Inactive Publication Date: 2016-02-24
陈鸽
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the damping force generated by the buffer device will promote the reverse movement of the moving contact, which often causes the moving contact to bounce when closing.

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
  • Buffer device and mechanical switch
  • Buffer device and mechanical switch
  • Buffer device and mechanical switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0041] A buffer device of the present invention, such as figure 1 As shown, it includes a cylinder 1, a piston mechanism 2, a pressure relief device 3, a channel 4 and a regulating valve 6. The cylinder body 1 includes a first end cover 12, a cylinder barrel 11 and a second end cover 13, the first end cover 12 is sealed and fixed on the top end of the cylinder barrel 1, further, the first end cover 12 and the cylinder The barrel 1 is integrally formed; the second end cover 13 is fixed on the bottom end of the cylinder barrel 1 by bolts, and the second end cover 13 and the bottom end of the cylinder barrel 1 are sealed by the first sealing ring 15 . The piston mechanism 2 includes a piston 21 and a piston rod 22 . The piston 21 is arranged inside the cylinder 1 , and the side surface of the piston 21 and the inner surface of the cylinder 11 are sealed by a fourth sealing ring 25 , and the piston 21 can slide relative to the cylinder 11 along the axial direction. The piston 21...

Embodiment approach 2

[0048] The difference between Embodiment 2 and Embodiment 1 is only: figure 2 As shown, the channel 4 includes a first channel 41 , a second channel 42 and a third channel 43 . The first channel 41 is built in the first end cover 12 and is in sealing communication with the pressure relief chamber 35 of the pressure relief device, distributed along the radial direction of the first end cover 12; the second channel 42 is arranged outside the cylinder 1, Distributed along the axial direction of the cylinder 11; the third channel 43 is arranged in the cylinder wall of the cylinder 11 and is located on the side of the second end cover 13 and is in sealing communication with the second chamber, distributed along the radial direction of the cylinder 11 . The first channel 41 , the second channel 42 and the third channel 43 are sequentially connected in a sealed manner, and the regulating valve 6 is arranged on the second channel 42 and communicated with it in a sealed manner.

Embodiment approach 3

[0050] The difference between Embodiment 3 and Embodiment 1 is only: image 3 As shown, the pressure relief device 3 is assembled on the upper end of the cylinder wall of the cylinder 11 , that is, on the side of the first end cover 12 . The pressure relief chamber 35 of the pressure relief device 3 is arranged on the upper end of the cylinder wall of the cylinder 11, which is composed of a bottom wall and a side wall, and the top opening is opened at the outer end of the cylinder 11. Here, the pressure relief device 3 The axis direction determines the top and bottom of the spatial orientation of the pressure relief device 3 . The end of the stem of the pressure relief valve core 31 is inside the valve seat hole 37 , that is, the end of the stem of the valve core does not protrude from the inner surface of the cylinder 11 . The built-in telescopic rod 313 of the pressure relief valve core 31 extends into the cylinder body 1. The part is a spherical crown, and can also be incl...

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 discloses a buffer device and a mechanical switch. The device comprises a cylinder, a piston, a piston rod and a pressure relieving device, wherein one end of the piston rod penetrates through a first end cover, and extends into the cylinder to be fixed with the piston in the cylinder; a cavity of the cylinder is divided into a first cavity and a second cavity at the sides of the first end cover by the piston; the pressure relieving device is assembled on the cylinder, and a valve core rod part of a pressure relieving valve rod in the pressure relieving device extends into the first cavity; an extension rod is positioned in the pressure relieving valve core for adjusting a pressure relieving trigger travel; and the pressure relieving device and the second cavity are communicated through a channel provided with an adjusting valve. The mechanical switch comprises a single-pole switch; the single-pole switch is axially connected with the buffer device; the buffer device relieves the damping force before switching on; the switching-on bounce of a moving contact is reduced; the damping releasing strength is adjusted; and the buffer device and the mechanical switch are in synergistic effect to optimize the switching-on performance. The pressure relieving device is arranged on the cylinder, and is convenient for installation, maintenance and adjustment of the pressure relieving trigger travel of the pressure relieving valve core.

Description

technical field [0001] The invention relates to a buffer device, in particular to a buffer device with adjustable damping release trigger stroke and damping release strength, and a mechanical switch using the buffer device, belonging to the field of switchgear. Background technique [0002] At present, new and higher requirements are continuously put forward for the opening and closing performance of high-voltage and low-voltage mechanical switches, and the opening and closing time is required to be shorter without arcing. This will inevitably make the moving contact of the vacuum bubble, which is the core component of the high and low voltage mechanical switch, have a higher speed when opening and closing, and the moving contact will not bounce when closing, and will not discharge and arc. No rebound, no discharge arcing. When the switch is closed, the high-speed moving moving contact of the vacuum bubble collides with its static contact, which is close to elastic collisio...

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 Applications(China)
IPC IPC(8): F16F9/34F16F9/48
Inventor 陈鸽
Owner 陈鸽
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com