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

Magnetic stop mechanism in portable lifting device

A technology of a stop mechanism and a lifting device, which is applied to the parts and instruments of the instrument, can solve problems such as difficulty in locking, and achieve the effect of a reliable stop function.

Inactive Publication Date: 2010-05-19
NANJING UNIV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Using helical gear viscous resistance, for slightly heavy objects, it is sometimes difficult to lock

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
  • Magnetic stop mechanism in portable lifting device
  • Magnetic stop mechanism in portable lifting device
  • Magnetic stop mechanism in portable lifting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A kind of magnetic stop mechanism in the lightweight lifting device of the present invention, see figure 1 and figure 2 , the magnetic stop mechanism includes a strong magnetic slider group 1, a sliding guide rail 2, a movable part with hanging ears 3 and an adjusting roller 4. The ferromagnetic slider group 1 is two ferromagnetic sliders, the N and S poles of the pair of ferromagnetic sliders face each other across the sliding guide rail 2 and are adsorbed on both sides of the sliding guide rail 2 . The strong magnetic slider 1 is embedded in the movable part 3 with hanging ears, and a spring 7 is arranged between the strong magnetic slider 1 and the hanging ears 6 to keep an appropriate activity margin; There is a gear 31 adapted to the rack 21, and a rotary handle 32 for rotating the gear 31. The load 5 is connected with the movable part 3 with hanging ears. The movable part with hanging lugs pushes the magnetic slider to move up and down along the sliding guide ...

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 magnetic stop mechanism in a portable lifting device. The magnetic stop mechanism comprises a strongly magnetic sliding block group, a slideguide, a moving part with hangers and an adjusting roller, wherein a pair of strongly magnetic sliding blocks in the strongly magnetic sliding block group are separately absorbed on the two sides of the slideguide, the N poles and S poles of the pair of the strongly magnetic sliding blocks are arranged oppositely; the strongly magnetic sliding block group is embedded in the moving part with hangers; the slideguide is provided with a rack, the moving part with hangers is provided with a gear matched with the rack and a rotary handle used for rotating the gear; and the strongly magnetic sliding block is pushed by the moving part with hangers to move up and down along the slideguide. The magnetic stop mechanism of the invention utilizes magnetic adsorption to increase the viscous resistance between the moving part and the fixed part of the lifting device, thus realizing stable stop function without affecting free lifting and being applicable to instruments with accurate and light structure.

Description

technical field [0001] The invention relates to a stop mechanism, in particular to a magnetic stop mechanism in a lightweight lifting device. Background technique [0002] In some precise and lightweight lifting devices, it is necessary to move freely, accurately locate, and require a reliable stop to avoid sliding and shifting. For example, the lifting of the microscope lens barrel, the lifting of the lens of the magnifying machine, the lifting of the heat source in the metal specific heat measurement device, etc., all use the lifting device. [0003] Under the action of external force, the gear in the lifting device rolls on the rack to drive the load to move up and down. If there is no stop mechanism or the stop mechanism cannot generate enough force against the load and the gravity of the movable part itself, once the external force is removed, under the action of gravity, the gear must drive the movable part and load in the lifting device to slide down the rack . [...

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): G12B5/00
Inventor 胡利群周惠君陈敦军郑有炓
Owner NANJING UNIV
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