CN201224266Y - Depression angle adjustable blackboard - Google Patents
Depression angle adjustable blackboard Download PDFInfo
- Publication number
- CN201224266Y CN201224266Y CNU2008201027980U CN200820102798U CN201224266Y CN 201224266 Y CN201224266 Y CN 201224266Y CN U2008201027980 U CNU2008201027980 U CN U2008201027980U CN 200820102798 U CN200820102798 U CN 200820102798U CN 201224266 Y CN201224266 Y CN 201224266Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- depression
- angle
- sliding tray
- adjusting
- 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
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Abstract
The utility model discloses a blackboard which can adjust depression angles and relates to a blackboard; in particular to the blackboard which can adjust depression angles and has the angle-adjusting function. The utility model provides the angle-adjusting blackboard which can lead all people in class not to see the reflective surface on the blackboard. The depression angle-adjusting blackboard is provided with the blackboard, rotational shafts and a depression angle-adjusting device for the blackboard; the rotational shafts are respectively arranged at both sides at the bottom part of the blackboard, and the depression angle-adjusting device for the blackboard is arranged at the upper part of the blackboard. The influence of the reflective surface can be avoided only by lightly adjusting the depression angle of the blackboard, and the depression angle of the blackboard can be adjusted according to different classes, different seasons and different time; the depression angle-adjusting blackboard has the advantages that the structure is simple, the university is strong, and the effect is good.
Description
Technical field
The utility model relates to a kind of blackboard, especially relates to a kind of blackboard with adjustable angle of depression of adjusting the angle function.
Background technology
Existing blackboard adopts the mode of vertical hanging on wall basically, its shortcoming is when outside window light (or indoor light) is strong, personnel in the classroom have seen reflective surface in some zone of blackboard, these reflective surfaces make the student not see local content on the blackboard, influenced teaching efficiency, this is the problem of long-term puzzlement teachers and students teaching.
Notification number is that the utility model patent of CN2855771 discloses a kind of automatic lifting blackboard, is intended to solve the deficiency that existing blackboard can not be regulated the blackboard height.It comprises a blackboard, and the framework that blackboard is installed, this framework are rectangular frames that comprises bottom girder, back timber, left side beam and right side beam on the wall that is fixed on the blackboard back; Be shaped on a dovetail groove respectively perpendicular to bottom girder in the front of left and right curb girder; The position corresponding with aforementioned dovetail groove is fixed with one respectively perpendicular to guide rail bottom girder, that match with the dovetail groove shape in the cross section at the back side of blackboard, and these two guide rails are contained in the dovetail groove respectively; On back timber, also be equipped with a cover transmission device, this transmission device comprises that is installed in the micromachine back timber centre position, can forward and backward, this motor has left and right two output shafts, on each output shaft respectively symmetry a reel is housed, be wound with steel wire rope on the reel, one end of steel wire rope is fixed on the end face of blackboard, and the other end is fixed on the balance weight.
Notification number is that the utility model patent of CN2555166 discloses a kind of blackboard panel and can overturn, and the novel turnover blackboard of plate face tilt adjustable, comprise blackboard panel, support, its medium-height trestle is made of two columns, entablature, sill, two poles, rollers; On described each pole blackboard is installed and stands stabilizer, each blackboard stands stabilizer and comprises a pair of leg and pair of links; Described a pair of leg is hinged with described pole respectively, and two hinges are the two ends of close described pole respectively; Described pair of links is hinged with described pole respectively, and two connecting rods are hinged at its adjacent end, and each connecting rod and homonymy leg are hinged; Make connecting rod around the swing of the hinge between itself and the described pole, drive leg and described roller is propped up overhead or with it put down.The blackboard panel locator also is installed on described entablature, selects different breach on the locator transverse slat, can change the luffing angle of blackboard panel.Locator can change the luffing angle of blackboard panel.
Notification number is that the utility model patent of CN2309235 discloses a kind of Curved surface blackboard, and its plate face is a curved surface.It has overcome the deficiency of planar shaped blackboard, and during use, the both sides no-reflection can greatly be protected student eyesight.When using in the classroom, no matter be sitting in which position in classroom, angle is all consistent.It is desirable teaching aid.
Summary of the invention
The utility model aims to provide a kind of blackboard that can allow all personnel in the classroom all can't see the adjustable angle of depression of the reflective surface on the blackboard.
The utility model is provided with blackboard, rotating shaft and is used to adjust the blackboard angle of depression adjusting device at the blackboard angle of depression, and the both sides of blackboard bottom are located in rotating shaft respectively, and blackboard angle of depression adjusting device is located at blackboard top.
Blackboard angle of depression device is provided with pole bracket and securing member, is provided with to be used for the sliding tray that securing member slides on pole bracket, and an end of pole bracket is fixed on the wall, and securing member is fixed in both sides, blackboard top, and securing member embeds in the sliding tray.Securing member can be made as wing bolt, and sliding tray preferably is located at the centerline of pole bracket, and sliding tray is preferably the arc sliding tray, and the angle of arc sliding tray is preferably 0 °～15 °, preferably is provided with scale mark on sliding tray.
The utility model only just can reach the influence that overcomes reflective surface by the angle of depression of adjusting blackboard by a small margin, and can be according to different classrooms, Various Seasonal, different time etc., the angle of depression to blackboard is adjusted, and has simple in structure, highly versatile, advantage such as respond well.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Referring to Fig. 1, the utility model embodiment is provided with blackboard 1, rotating shaft 2 and is used to adjust the blackboard angle of depression adjusting device at the blackboard angle of depression, and the both sides of blackboard 1 bottom are located in rotating shaft 2 respectively, and blackboard angle of depression adjusting device is located at blackboard 1 top.
Blackboard angle of depression device is provided with securing member 3 and pole bracket 4, is provided with to be used for the sliding tray 41 that securing member 3 slides on pole bracket 4, and an end of pole bracket 4 is fixed on the wall 5, and securing member 3 is fixed in both sides, blackboard 1 top, and securing member 3 embeds in the sliding tray 41.Securing member 3 is the wing bolt securing member, and sliding tray 41 is located at the centerline of pole bracket 4, and sliding tray 41 is the arc sliding tray, and the angle of arc sliding tray is 0 °～15 °, is provided with scale mark 42 on sliding tray 41.
The two ends, bottom of blackboard 1 are connected with wall 5 by rotating shaft 2, and the two ends on blackboard 1 top are connected with pole bracket 4 by wing bolt securing member 3, and the bottom of pole bracket 4 is fixed on the wall 5.The angle of depression of blackboard can be rotated in 0 °～15 ° scopes.
During use, adjust the angle of depression of blackboard according to the actual conditions in classroom, when all personnel in the classroom all can't see the blackboard reflective light face, the fixing angle of depression of blackboard correspondence (general classroom is about 7 °～10 °).
Claims (6)
1. the blackboard at the adjustable angle of depression is characterized in that being provided with blackboard, rotating shaft and is used to adjust the blackboard angle of depression adjusting device at the blackboard angle of depression that the both sides of blackboard bottom are located in rotating shaft respectively, and blackboard angle of depression adjusting device is located at blackboard top.
2. the blackboard at the adjustable angle of depression as claimed in claim 1, it is characterized in that blackboard angle of depression device is provided with pole bracket and securing member, be provided with sliding tray on pole bracket, an end of pole bracket is fixed on the wall, securing member is fixed in both sides, blackboard top, and securing member embeds in the sliding tray.
3. the blackboard at the adjustable angle of depression as claimed in claim 2 is characterized in that securing member is a wing bolt.
4. the blackboard at the adjustable angle of depression as claimed in claim 2 is characterized in that sliding tray is located at the centerline of pole bracket.
5. as the blackboard at the claim 2 or the 4 described adjustable angles of depression, it is characterized in that sliding tray is the arc sliding tray, the angle of arc sliding tray is 0 °～15 °.
6. as the blackboard at the claim 2 or the 4 described adjustable angles of depression, it is characterized in that on sliding tray, being provided with scale mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201027980U CN201224266Y (en) | 2008-06-20 | 2008-06-20 | Depression angle adjustable blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201027980U CN201224266Y (en) | 2008-06-20 | 2008-06-20 | Depression angle adjustable blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201224266Y true CN201224266Y (en) | 2009-04-22 |
Family
ID=40597145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201027980U Expired - Fee Related CN201224266Y (en) | 2008-06-20 | 2008-06-20 | Depression angle adjustable blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201224266Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925952A (en) * | 2016-05-11 | 2016-09-07 | 上海应用技术学院 | Wire feeding device with adjustable wire inlet angle |
| CN111288280A (en) * | 2020-03-26 | 2020-06-16 | 安徽文香信息技术有限公司 | Wisdom blackboard convenient to maintenance |
-
2008
- 2008-06-20 CN CNU2008201027980U patent/CN201224266Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925952A (en) * | 2016-05-11 | 2016-09-07 | 上海应用技术学院 | Wire feeding device with adjustable wire inlet angle |
| CN105925952B (en) * | 2016-05-11 | 2019-11-29 | 上海应用技术学院 | Into the wire feeder of silk adjustable angle |
| CN111288280A (en) * | 2020-03-26 | 2020-06-16 | 安徽文香信息技术有限公司 | Wisdom blackboard convenient to maintenance |
| CN111288280B (en) * | 2020-03-26 | 2021-09-07 | 安徽文香信息技术有限公司 | Wisdom blackboard convenient to maintenance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 |