CN2497985Y - Circularly liftable blackboard - Google Patents
Circularly liftable blackboard Download PDFInfo
- Publication number
- CN2497985Y CN2497985Y CN 01265015 CN01265015U CN2497985Y CN 2497985 Y CN2497985 Y CN 2497985Y CN 01265015 CN01265015 CN 01265015 CN 01265015 U CN01265015 U CN 01265015U CN 2497985 Y CN2497985 Y CN 2497985Y
- Authority
- CN
- China
- Prior art keywords
- trunnion axis
- blackboard
- backing plate
- hard backing
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to an elevating blackboard, the wordpad of which can be circularly rotated. The upper and the lower directions of a blackboard frame are provided with an upper and a lower horizontal axes, between which a hard backing plate is arranged at the same direction of the two axes. The coat of the hard backing plate is provided with an annular flexible board of thin-strip type, which can be tightened by the upper and the lower horizontal axes. The outside surface of the board is a wordpad, the inside surface can contact the hard backing plate to facilitate writing on the board. A U-shaped wiping brush strip is arranged on one side in parallel with the horizontal axes.
Description
The utility model relates to the rotatable lifting writing blackboard that recycles of a kind of plate face.
At present, local employed blackboard movable up and down such as school, though polylith clipboard face is arranged, the spatial area that can Gong write is still limited, can only be constantly when the amount of writing is big with wiping with writing, both time-consuming, inconvenient again, and dust flies upward everywhere when erasing the board, and is harmful to health.
The purpose of this utility model is at this situation, but a kind of rotation capable of circulation and Automatic erasing blackboard are provided, so that the blackboard that can write the space constantly to be provided.
Structure of the present utility model is that the upper and lower in blackboard framework is to being provided with upper and lower two trunnion axis.Be provided with a hard backing plate consistent with its place direction between diaxon, being equipped with one outside it can be by ring-type flexible strip's template face of upper and lower two trunnion axis tensionings.The outer surface of this strip template face is a writing surface, and inner surface well contacts with the outer side plane of hard backing plate.On the direction parallel, also be provided with trunnion axis can with the wiping brush bar of the outer surface CONTACT WITH FRICTION of strip template face.The position that adapts with wiping brush bar also be provided be used to collect wiping after the dust box of whereabouts dust.
Select automatic wiping and not wiping dual mode for the ease of the user, and change the brush bar, can wiping brush bar and be set to mobilizable structure.
For further facilitating use, being provided with the motor that cooperates do transmission with driving shaft, rotate strip template face by motor with frame position place that driving shaft adapts, and needn't be with the direct slurcam face of hand.
Because the plate face that has in the blackboard of said structure can upper and lower cycle rotation, its front can be for normally writing, and the plate face of having write when turning to the back side is just wiped automatically by the brush bar, when rotating back into the front again is exactly and the cleaned plate face that can Gong write.Circulation so continuously, but the as many as unlimited write area that prolongs the plate face of this blackboard has improved teacher's teaching efficient.On the other hand, adopt the wiping of closed, the dust of wiping can not fly upward everywhere, thereby prevents its pollution to environment, has improved teacher's working condition, has protected that teachers and students' is healthy.
Below foregoing of the present utility model is described further with example shown in the drawings.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.
Fig. 1 is the schematic appearance of the utility model blackboard.
Fig. 2 is the internal structure schematic diagram of the utility model blackboard.
In blackboard as shown in the figure, at upper and lower trunnion axis 1 and following trunnion axis 2 on being respectively arranged with, trunnion axis 1,2 two ends place the bearing block 3 that bearing is housed.Between two trunnion axis, be provided with a hard backing plate 4 consistent with its place direction.Be placed in four jiaos of hard backing plate 4 of four bearing blocks 3 make two trunnion axis 1,2 and hard backing plate 4 in the same vertical plane.Being equipped with one outside two trunnion axis and hard backing plate can be by ring-type flexible strip's template face 5 of upper and lower trunnion axis tensioning.The outer surface of this plate face is a writing surface, and the outside plane contact of inner surface and hard backing plate 4 is beneficial to writing and wiping on plate face 5.Be provided with U type wiping brush bar 6 in a side parallel, upwards be stuck in down on the trunnion axis 2 the outer surface CONTACT WITH FRICTION with strip template face 5 during translation lightly, automatic Wiper plate face when the plate face rotates with lower horizontal plane 2.Leave the outer surface of plate face during translation downwards, be in the state of not wiping this moment.The position that adapts with wiping brush bar 6 below framework 7 also is provided with and is used to collect dust box 8.Be provided with the motor 9 that can cooperate do transmission with trunnion axis 1 at the position of the framework 7 that adapts with last trunnion axis 1.
Claims (3)
1. blackboard movable up and down, it is characterized in that upper and lower in the blackboard framework (7) is to being provided with trunnion axis (1) and following trunnion axis (2), between two trunnion axis, be provided with a hard backing plate (4) consistent with its place direction, being equipped with one outside it can be by ring-type flexible strip's template face (5) of upper and lower trunnion axis tensioning, the outer surface of plate face is a writing surface, and inner surface can contact with the outer surface of hard backing plate (4); And on the direction parallel, also be provided with following trunnion axis (2) can with the outer surface CONTACT WITH FRICTION of ring-type flexible thin band plate face (5) wiping brush bar (6).
2. blackboard as claimed in claim 1 is characterized in that being provided with the dust box (8) that is used to collect dust at framework (7) position that adapts with wiping brush bar (6) position.
3. blackboard as claimed in claim 1 is characterized in that framework (7) position that adapts in last trunnion axis (1) position is provided with the motor (9) that can cooperate do transmission with last trunnion axis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265015 CN2497985Y (en) | 2001-10-18 | 2001-10-18 | Circularly liftable blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265015 CN2497985Y (en) | 2001-10-18 | 2001-10-18 | Circularly liftable blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2497985Y true CN2497985Y (en) | 2002-07-03 |
Family
ID=33672086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01265015 Expired - Fee Related CN2497985Y (en) | 2001-10-18 | 2001-10-18 | Circularly liftable blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2497985Y (en) |
-
2001
- 2001-10-18 CN CN 01265015 patent/CN2497985Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN PROVINCE LING S EDUCATION EQUIPMENT CO., Free format text: FORMER OWNER: MOU JIAN Effective date: 20031010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20031010 Address after: 610036, Sichuan, Chengdu province Jinniu District Soil Bridge Qing Qing Gang Village No. 92 Patentee after: Sichuan Province Ling Education Equipment Co., Ltd. Address before: 611830 Dujiangyan ten Hydropower Bureau School of Sichuan Province Patentee before: Mou Jian |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Runping Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |