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

Four-line-box blackboard optical projection device adjustable in angle

An optical projection and adjustable technology, applied in the field of projection, can solve the problems of poor heat dissipation and dehumidification, non-adjustable angle, inconvenient use, etc., achieve the effect of convenient and fast projection angle, prevent moisture damage, and prolong service life

Pending Publication Date: 2018-06-01
唐现莲
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The blackboard does not specifically refer to the black board surface. In the traditional sense, it is a plane that can be repeatedly written with chalk. The board surface is hard and is mostly used for teaching. Blackboards are generally made of wood or frosted glass. Writing materials are written on it, mostly black, dark green, white or beige. Projector is a commonly used length measuring instrument. Optical projector, also known as digital projector, is a combination of optics, precision machinery and electronic measurement. The integrated precision measuring instrument is suitable for precision industrial two-dimensional dimension measurement. The three-coordinate image measuring instrument and other series are specially developed and designed for the touch screen industry. It can realize high-precision batch measurement of products, high detection efficiency and convenient use, so it is widely used Applied to machinery, instrumentation, electronics, light industry and other industries and measurement and verification departments. At present, optical projection devices are used in the teaching process to assist teaching. However, the existing optical projection devices have single functions, inconvenient use, and heat dissipation and dehumidification. The effect is not good, and the angle cannot be adjusted

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
  • Four-line-box blackboard optical projection device adjustable in angle
  • Four-line-box blackboard optical projection device adjustable in angle
  • Four-line-box blackboard optical projection device adjustable in angle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0026] refer to Figure 1-4 , an angle-adjustable four-line grid blackboard optical projection device, including a hollow base 1, the four corners of the bottom outer wall of the base 1 are connected with lifting hydraulic cylinders 2 by fastening bolts, and the four lifting hydraulic cylinders 2 are far away from the end of the base 1 All are connected with supporting legs 3 by fastening bolts, and the bottoms of the four supporting legs 3 are all connected with universal wheels 4 by fastening bolts, and the four corners of the outer wall of the top of the base 1 are provided with installation grooves 20, and the bottoms of the four installation grooves 20 The inner...

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 belongs to the technical field of projection, and particularly relates to a four-line-box blackboard optical projection device adjustable in angle. In order to solve the problems that anoptical projection device is not adjustable in angle and poor in cooling and dehumidifying effect, the following scheme is put forwards, a hollow base is included; a lifting hydraulic oil cylinder isconnected to each of the four corners of the bottom outer wall of the base through a fastening bolt; and a supporting leg is connected to the end, away from the base, of each of the four lifting hydraulic oil cylinder through a fastening bolt. The four-line-box blackboard optical projection device adjustable in angle is provided with the base, storage can be performed in the base, a dehumidifyingdraught fan performs dehumidifying on the interior of the base, using is more convenient, parts are well protected against shock influences in the moving process, the anti-theft effect is effectivelyachieved, dehumidifying and cooling in a shell are effectively achieved, the service life of parts in the shell is prolonged, by adjusting the hydraulic oil cylinders, a slider is driven to slide ina sliding groove, the inclination angle of an installing plate is adjusted, and the projection angle is conveniently and fast adjusted.

Description

technical field [0001] The invention relates to the field of projection technology, in particular to an angle-adjustable four-line grid blackboard optical projection device. Background technique [0002] The blackboard does not specifically refer to the black board surface. In the traditional sense, it is a plane that can be repeatedly written with chalk. The board surface is hard and is mostly used for teaching. Blackboards are generally made of wood or frosted glass. Writing materials are written on it, mostly black, dark green, white or beige. Projector is a commonly used length measuring instrument. Optical projector, also known as digital projector, is a combination of optics, precision machinery and electronic measurement. The integrated precision measuring instrument is suitable for precision industrial two-dimensional dimension measurement. The three-coordinate image measuring instrument and other series are specially developed and designed for the touch screen indus...

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): B43L13/18G03B21/00G03B21/16G03B21/14
CPCB43L13/18G03B21/001G03B21/14G03B21/16
Inventor 唐现莲
Owner 唐现莲
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