CN2605130Y

CN2605130Y - Net type dustfree blackboard

Info

Publication number: CN2605130Y
Application number: CN 03233171
Authority: CN
Inventors: 朱洪力
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-11
Filing date: 2003-02-11
Publication date: 2004-03-03
Anticipated expiration: 2013-02-11

Abstract

The utility model discloses a reticular dust-free blackboard comprising a reticular blackboard, a frame, a cavity side, a posterior cavity side, a dust-catching groove and large-span ribs to support the blackboard. The reticular blackboard (5) inlayed in the rectangular marginal frame (7) forms a five sides cavity body with the cavity side (1), the posterior cavity side (2) and a cavity top surface and the dust-catching groove of drawer model (6) is arranged under the cavity body. The large-span ribs to support the blackboard (4) is arranged vertically between the reticular blackboard (5) and the posterior cavity side (2). The reticular blackboard is provided with dense meshes to have large amount of absorption of chalks in the process of writing, ensuring clear words. Besides, a board wiper makes the chalk words turn into dusts all of which enter the cavity behind the reticular blackboard to drop into the dust-catching groove, not only thoroughly removing the dusts but also protecting the environmental sanitation in the classroom, so the reticular blackboard is suitable for various schools.

Description

Netted dust-free blackboard

Technical field: the utility model relates to blackboard, particularly a kind of netted dust-free blackboard.

Background technology: dust-free blackboard of the prior art needs complicated mechanical and electrical installation, makes difficulty, the cost height, and energy consumption is big, and noise is big, and service life is short, needs often maintenance.

Summary of the invention: the purpose of this utility model is to provide a kind of netted dust-free blackboard; because the blackboard mesh is intensive; adsorbance to chalk when writing is big; thereby guaranteed that writing is strong clear; blackboard eraser makes the chalk mark become dust and all enters in the cavity of netted blackboard back and fall in the dust collecting trough, reach dedusting thoroughly, the healthy purpose of protection teachers and students.

Formation of the present utility model: support rib by netted blackboard, blackboard frame, cavity side, cavity back, dust collecting trough and large span blackboard and form, netted blackboard (5) is embedded in the rectangular shaped rim (7), netted blackboard (5) is formed five cavity body with cavity side (1), cavity back (2) and the cavity end face of back, be drawer type dust collecting trough (6) below cavity body, the large span blackboard vertically be installed between netted blackboard (5) and cavity back (2) supported rib (4).

Compared with the prior art, the utility model is simple in structure, and it has saved devices such as complicated mechanical and electrical equipment, so it is not only without regular maintenance, and easy to manufacture, cheap, do not have operation energy consumption, long service life is even if also promote easily non-transformer or economically less developed region.Dedusting is thorough, because the gas in the cavity does not flow, so the dust that enters in the cavity only is subjected to gravity fall in dust collecting trough, and can not return cavity outside contaminated environment again by mesh.Environmental protection more owing to saved all machine operation devices such as air exhauster, so there is not a bit noise pollution, has been protected user and people around's thereof health better.

Description of drawings: Fig. 1 is the utility model structural representation.Fig. 2 is the A-A cutaway view of Fig. 1.

1. cavity side among the figure, 2. cavity back, 3. drawer handle, 4. the large span blackboard supports rib, 5. netted blackboard, 6. dust collecting trough, 7. blackboard frame.

The specific embodiment: as shown in Figure 1 and Figure 2, netted blackboard (5) is embedded in the rectangular shaped rim (7), the cavity side (1) of netted blackboard (5) and back and cavity back (2) and cavity end face are formed cavity body, below cavity body drawer type dust collecting trough (6), drawer handle (3) is arranged in the front of dust collecting trough, the large span blackboard vertically is installed between netted blackboard (5) and cavity back (2) is supported rib (4).Intensive mesh is arranged on blackboard.Because mesh is intensive, so the adsorbance to chalk when writing is just big, thereby guaranteed that writing is strong clear, when erasing the board with ordinary blackboard eraser, blackboard eraser just is enough to when person's handwriting is become dust the slight pressure of chalk mark, dust is all entered in the back cavity of netted blackboard and falls into dust collecting trough (6) lining.The dust collecting trough of drawer type can empty operation easily when filling dust.

Claims

1. netted dust-free blackboard, supporting rib by netted blackboard, blackboard frame, cavity side, cavity back, dust collecting trough and large span blackboard forms, it is characterized in that: netted blackboard (5) is embedded in the rectangular shaped rim (7), netted blackboard (5) is formed five cavity body with cavity side (1), cavity back (2) and the cavity end face of back, be drawer type dust collecting trough (6) below cavity body, the large span blackboard vertically be installed between netted blackboard (5) and cavity back (2) supported rib (4).