Portable semi-automatic stairs climbing dolly

A semi-automatic, stair-climbing technology, applied in the field of devices for going up and down stairs, can solve problems such as bumps, shocks, poor stability, etc.

Inactive Publication Date: 2007-12-12
ZHEJIANG UNIV
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the existing full-automatic stair-climbing trolley's shortcomings of bumping, severe impact, and poor stability, the purpose of the present invention is to provide a ...

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
  • Portable semi-automatic stairs climbing dolly
  • Portable semi-automatic stairs climbing dolly
  • Portable semi-automatic stairs climbing dolly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with drawings and embodiments.

[0021] As shown in Fig. 4, Fig. 5 and Fig. 6, the present invention is equipped with a motor 3, a worm gear reducer 6 and two sets of two sub-supports 4 on the frame bottom plate 12; Connected with the worm gear reducer 6, the two sub-supports 4 as a group are respectively installed on both sides of the frame bottom plate 12, and the support shaft 13 is installed between the supports 4 of each group, and the two rockers 7 One end of the two rockers 7 is respectively hinged with the respective bearing shaft 13, and the other ends of the two rocking rods 7 are respectively slidably connected with one end of the respective sleeve 10. The connecting shafts 17 on the outside are equipped with support wheels 11 respectively, and Hall sensors a are installed on the side. One end of 8 is key-connected to the output shaft 14 at both ends of the reducer, and the other ends of th...

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 relates to a portable semi automatic ladder climbing cart. Bottom plate installs with motor, worm decelerator and bracket, motor connected to the decelerator through the coupler, each set having a support shaft between two brackets, one end of the rocking bar hinges with each bracket shaft, the other in slide connection with one end of the sleeve barrel, crank at both ends of output shaft of the decelerator hinges with the bottom of the sleeve barrel, two support wheels installed outside the top of the sleeve barrel, two big wheels installed at both sides of the frame bottom plate, and two universal wheel installed at both sides of the bottom of the frame close to the motor. With the movement of the crankshaft, the support wheel moves in crescent shape. The support wheel sticks out to put on a ladder to pull up the small cart. When the support wheel is higher, it extracts to put the small cart on the ladder below.

Description

technical field [0001] The invention relates to a device for going up and down stairs, in particular to a portable semi-automatic stair climbing trolley. Background technique [0002] The research of stair-climbing dolly has nearly a hundred years of history, and compound wheel type, lever type, crawler-type stair-climbing dolly have been invented at present, but it all is to adopt full-automatic stair-climbing method. [0003] The most notable feature of the stair-climbing mechanism of compound wheel type (as shown in Figure 1) is to be made of some steamboats evenly distributed on " Y " shape or " ten " font tie rods. Each small wheel can rotate around its own axis, and can revolve around the central axis together with the tie rod. When walking on flat ground, each small wheel rotates by itself; and when climbing stairs, each small wheel revolves together, thereby realizing the function of climbing stairs. However, it has relatively serious bumps and impacts, poor stabil...

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
IPC IPC(8): B62B3/00B62B5/02
Inventor 顾大强周春喜庹福幸唐睿张峰张思建
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap