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

Fume hood opened and closed in perpendicular foot step type controlling mode

A control switch and foot-operated technology, applied in the field of fume hoods, can solve problems affecting the normal use of fume hoods, personnel and property accidents, damage and breakage, etc., and achieve the effect of strong practicability, avoiding breakage and breakage, and avoiding accidental stepping.

Active Publication Date: 2013-12-11
ANHUI HUASHENG TECH HLDG
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical application, the disadvantage of the exposed foot-operated control switch is that the switch is easily stepped on by other irrelevant personnel, thereby causing personnel and property accidents, and the wires are exposed outside, which may easily cause damage and fracture for a long time, thus affecting the fume hood. normal use

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
  • Fume hood opened and closed in perpendicular foot step type controlling mode
  • Fume hood opened and closed in perpendicular foot step type controlling mode
  • Fume hood opened and closed in perpendicular foot step type controlling mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] refer to figure 1 and figure 2 , figure 1 It is a schematic diagram of the local structure of a fume hood with a vertical foot-operated control switch proposed by the present invention, figure 2 for figure 1 Schematic diagram of the structure of the foot-operated control switch, image 3 It is a schematic diagram of the state in which the foot control switch is in the closed state in the figure.

[0016] Such as figure 1 As shown, in the fume hood of the vertical foot-operated control switch proposed by the embodiment of the present invention, two foot-operated control switches 11, 11, 12. Two foot-operated control switches 11 and 12 are respectively arranged on the left and right sides of the fixed panel 10. The foot-operated control switch 11 can be set to control the fume hood door to rise, and the foot-operated control switch 12 can control the fume hood door to descend;

[0017] Such as figure 2 As shown, the foot-operated control switches 11 and 12 inclu...

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 fume hood opened and closed in a perpendicular foot step type controlling mode. Two foot step type control switches used for controlling the fume hood to go up and down are perpendicularly mounted on a fixing panel on the bottom of the fume hood, wherein each foot step type control switch comprises an upper jaw and a lower jaw, the upper jaw is connected with the lower jaw through a pin roll, a reset spring is arranged between the upper jaw and the lower jaw, a microswitch is arranged in the lower jaw, the lower jaw is fastened to the fixing panel, the upper jaw is controlled to rotate relative to the lower jaw in a foot step mode, and the upper jaw presses or is away from the microswitch to enable the microswitch to be turned on or off. According to the fume hood opened and closed in the perpendicular foot step type controlling mode, due to the fact that the foot step type control switches are perpendicularly mounted on the fixing panel on the bottom of the fume hood, the foot step type control switches are prevented from being stepped by mistake; meanwhile, due to the fact that electric wires can be contained inside the fume hood, the electric wires are prevented from being damaged and fractured; the foot step type control switches are ingenious in position design, convenient to operate and strong in practicability.

Description

technical field [0001] The invention relates to the technical field of fume hoods, in particular to a fume hood with a vertical foot-operated control switch. Background technique [0002] In a traditional fume hood, the rise and fall of the fume hood door is generally controlled by a foot-operated control switch. Specifically, the foot-operated control switch is located outside the fume hood, placed on the ground and connected to the fume hood door by a wire. Actuator connection. In practical application, the disadvantage of the exposed foot-operated control switch is that the switch is easily stepped on by other irrelevant personnel, thereby causing personnel and property accidents, and the wires are exposed outside, which may easily cause damage and fracture for a long time, thus affecting the fume hood. normal use. Contents of the invention [0003] Aiming at the technical problem of exposed foot-operated control switches in the prior art, the present invention propos...

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): H01H3/14
Inventor 盛义良
Owner ANHUI HUASHENG TECH HLDG
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