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

Blackboard eraser

A technology for a blackboard eraser and a front case is applied in the field of blackboard erasers, which can solve problems such as obtrusiveness, complex structure, unsightly appearance, etc., and achieve the effects of cost reduction, simple and effective structure

Inactive Publication Date: 2012-11-21
胡一诺
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, first of all, setting button-like operating parts on the back of the blackboard eraser seems very abrupt and unsightly
In addition, the operating part needs to be connected with the above-mentioned switch board, and it is inevitable to pass through the water storage chamber and punch holes on the side wall of the water storage chamber, which will adversely affect the sealing effect of the water storage chamber
Moreover, since the switch is realized by using the operating part, the structure is relatively complicated.

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
  • Blackboard eraser
  • Blackboard eraser
  • Blackboard eraser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] figure 1 It is a side sectional view of a blackboard eraser related to a specific embodiment of the present invention; figure 2 To represent the side sectional view of the state of the above-mentioned blackboard eraser in use, the length direction of the blackboard eraser in the figure is consistent with the vertical direction; image 3 To represent the side sectional view of the state of the above-mentioned blackboard eraser when not in use, the blackboard eraser is in the state facing up among the figures; Figure 4 Another side sectional view showing the state of the blackboard eraser in use, in which the blackboard eraser is in a state with its back facing up.

[0022] As shown in the figure, the blackboard eraser is formed by fastening a front case 1 and a rear case 2, and is in the shape of a cuboid as a whole. An installation g...

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 mainly aims at providing a blackboard eraser which can realize a dustproof (environmental-friendly) effect and has a simple structure. In order to achieve the goal, the blackboard eraser comprises a front shell (1). An erasing body installation part is formed on the front surface of the front shell. An erasing body is installed on the erasing body installation part. A rear shell (2) is installed on the back surface of the front shell. A water containing chamber (11) which is used for containing water is formed between the front shell and the rear shell. A water supply passage (12) is arranged at the lower part of the water containing chamber and is provided with an inlet (12a) and an outlet (12b), wherein the inlet is arranged at a position adjacent to the rear shell and the outlet is communicated with the erasing body installation part to supply water to the erasing body.

Description

technical field [0001] The invention relates to a blackboard eraser, in particular to a blackboard eraser which can absorb chalk dust by using water to moisten a chalk erasing body such as a sponge to realize environmental protection. Background technique [0002] Chinese patent document 200810226800.X discloses an environmentally friendly blackboard eraser. The blackboard eraser is formed by fastening two shells, and a mounting part (groove) is arranged on the shell on the front side. A sponge (erase body) for erasing chalk characters, forming a water chamber for holding water between the two shells. There is a communication hole between the water holding chamber and the above-mentioned installation part. A switch plate for opening and closing the communication hole is installed on the communication hole. When the parts are operated, the switch plate is opened, and the water in the water chamber enters the above-mentioned installation part to moisten the sponge. [0003] ...

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): B43L21/02
Inventor 胡一诺
Owner 胡一诺
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