CN204586230U - Plate face instructional device expanded by culture and education blackboard - Google Patents
Plate face instructional device expanded by culture and education blackboard Download PDFInfo
- Publication number
- CN204586230U CN204586230U CN201520178057.0U CN201520178057U CN204586230U CN 204586230 U CN204586230 U CN 204586230U CN 201520178057 U CN201520178057 U CN 201520178057U CN 204586230 U CN204586230 U CN 204586230U
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- blackboard
- fixedly installed
- cross
- grooved rail
- under
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Abstract
The utility model provides a kind of culture and education blackboard to expand plate face instructional device, belong to teaching equipment technical field, its structure comprises blackboard and secondary blackboard, the back side of blackboard fixed frame is fixedly installed on main wall face by fixture, blackboard fixed frame is fixedly installed liner, blackboard is fixedly installed on front side of liner, the top edge of blackboard fixed frame is fixedly installed upper limb track, the forward position of upper limb track is provided with grooved rail, the left end of upper limb track is provided with arc to bending and forwards extending along side wall, the upper end trailing edge of activity box is fixedly installed upper whorl axial, upper whorl axial is provided with top sheave, top sheave is arranged in grooved rail, the flexible connection of top sheave and upper grooved rail roller, secondary blackboard is fixedly installed on subplate frame.The setting that plate face instructional device utilizes secondary blackboard expanded by this culture and education blackboard, can integrated movable blackboard and background cloth, facilitates the teaching of the many space of a whole page teaching of polylith blackboard and projecting apparatus, convenient and swift.
Description
Technical field
The utility model relates to teaching equipment technical field, and specifically plate face instructional device expanded by a kind of culture and education blackboard.
Background technology
General, the classroom preparation that teaching classroom often uses only has a monoblock blackboard, and this blackboard is arranged on main wall face.Sometimes, when teaching needs the activity of polylith blackboard to arrange teaching, the small blackboard of mounting then can be used traditionally to hang on the upper side frame of main blackboard, hang the very inconvenient use in plate face directly covering main blackboard.When using projecting apparatus when imparting knowledge to students, then need projected background cloth, background cloth needs to set up in addition, very inconvenient.
Summary of the invention
Technical assignment of the present utility model solves the deficiencies in the prior art, provides a kind of culture and education blackboard to expand plate face instructional device.
The technical solution of the utility model realizes in the following manner, and plate face instructional device expanded by this culture and education blackboard, and its structure comprises blackboard and secondary blackboard,
The back side of blackboard fixed frame is fixedly installed on main wall face by fixture,
Blackboard fixed frame is fixedly installed liner, on front side of liner, is fixedly installed blackboard,
The top edge of blackboard fixed frame is fixedly installed upper limb track, and the forward position of upper limb track is provided with grooved rail, and the left end of upper limb track is provided with arc to bending and forwards extending along side wall,
The lower limb of blackboard fixed frame is fixedly installed lower edge track, and the forward position of lower edge track is provided with lower grooved rail, and the left end of lower edge track is provided with the arc of upper limb track identical radian measure to bending and forwards extending along side wall,
The upper end trailing edge of activity box is fixedly installed upper whorl axial, and upper whorl axial is provided with top sheave, and top sheave is arranged in grooved rail, the flexible connection of top sheave and upper grooved rail roller,
The lower end trailing edge of activity box is fixedly installed lower wheel shaft, and lower wheel shaft is provided with lower sheave, and lower sheave is arranged in lower grooved rail, the flexible connection of lower sheave and lower grooved rail roller,
The upper end leading edge of activity box is fixedly installed cross-under seat, and upper cross-under seat offers jack hole,
The lower front edge of activity box is fixedly installed lower cross-under seat, and lower cross-under seat offers lower jack hole,
Secondary blackboard is fixedly installed on subplate frame,
A lateral edges upper end of subplate frame is fixedly installed joint pin, upper joint pin is provided with the upper cross-under axle arranged down, and the cross-under of upper cross-under axle, in upper jack hole, is provided with applanation bearing between upper joint pin and upper cross-under seat,
The lateral edges lower end of this subplate frame is fixedly installed lower joint pin, lower joint pin is provided with the lower cross-under axle arranged down, and the cross-under of lower cross-under axle, in lower jack hole, is provided with lower plane pressure bearing between lower joint pin and lower cross-under seat.
The front of secondary blackboard is fixedly installed ground glass blackboard, and the reverse side of secondary blackboard is fixedly installed frosted projected background cloth.
The height span of secondary blackboard is greater than the height span of blackboard, and the area of secondary blackboard is less than the area of blackboard.
The beneficial effect that the utility model is compared with prior art produced is:
The setting that plate face instructional device utilizes secondary blackboard expanded by this culture and education blackboard, can integrated movable blackboard and background cloth, facilitates the teaching of the many space of a whole page teaching of polylith blackboard and projecting apparatus, convenient and swift.And secondary blackboard can roll according to the rail of track and slide, and can use flexibly according to instructions for use activity.
This culture and education blackboard expands that plate face instructional device is reasonable in design, structure is simple, safe and reliable, easy to use, be easy to safeguard, have good value for applications.
Accompanying drawing explanation
Accompanying drawing 1 is side profile structural representation of the present utility model;
Accompanying drawing 2 is plan structure schematic diagrames of the present utility model.
Mark in accompanying drawing represents respectively:
1, blackboard fixed frame, 2, fixture, 3, main wall face, 4, liner, 5, blackboard,
6, upper limb track, 7, upper grooved rail, 8, arc to bending,
9, lower edge track, 10, lower grooved rail,
11, activity box,
12, upper whorl axial, 13, top sheave,
14, lower wheel shaft, 15, lower sheave,
16, upper cross-under seat, 17, upper jack hole,
18, lower cross-under seat, 19, lower jack hole,
20, secondary blackboard, 21, subplate frame, 22, upper joint pin, 23, upper cross-under axle, 24, upper applanation bearing,
25, lower joint pin, 26, lower cross-under axle, 27, lower plane pressure bearing,
28, ground glass blackboard, 29, frosted projected background cloth, 30, side wall.
Detailed description of the invention
Expand plate face instructional device below in conjunction with accompanying drawing to culture and education blackboard of the present utility model to be described in detail below.
As shown in drawings, plate face instructional device expanded by culture and education blackboard of the present utility model, and its structure comprises blackboard and secondary blackboard,
The back side of blackboard fixed frame 1 is fixedly installed on main wall face 3 by fixture 2,
Blackboard fixed frame 1 is fixedly installed liner 4, on front side of liner 4, is fixedly installed blackboard 5,
The top edge of blackboard fixed frame 1 is fixedly installed upper limb track 6, and the forward position of upper limb track 6 is provided with grooved rail 7, and the left end of upper limb track 6 is provided with arc to bending 8 and forwards extending along side wall 30,
The lower limb of blackboard fixed frame 1 is fixedly installed lower edge track 9, and the forward position of lower edge track 9 is provided with lower grooved rail 10, and the left end of lower edge track 9 is provided with the arc of upper limb track identical radian measure to bending and forwards extending along side wall 30,
The upper end trailing edge of activity box 11 is fixedly installed upper whorl axial 12, upper whorl axial 12 is provided with top sheave 13, and top sheave 13 is arranged in grooved rail 7, the flexible connection of top sheave and upper grooved rail roller,
The lower end trailing edge of activity box 11 is fixedly installed lower wheel shaft 14, and lower wheel shaft 14 is provided with lower sheave 15, and lower sheave 15 is arranged in lower grooved rail 10, the flexible connection of lower sheave and lower grooved rail roller,
The upper end leading edge of activity box 11 is fixedly installed cross-under seat 16, and upper cross-under seat offers jack hole 17,
The lower front edge of activity box 11 is fixedly installed lower cross-under seat 18, and lower cross-under seat offers lower jack hole 19,
Secondary blackboard 20 is fixedly installed on subplate frame 21,
A lateral edges upper end of subplate frame 21 is fixedly installed joint pin 22, upper joint pin is provided with the upper cross-under axle 23 arranged down, the cross-under of upper cross-under axle 23, in upper jack hole 17, is provided with applanation bearing 24 between upper joint pin 22 and upper cross-under seat 16
The lateral edges lower end of this subplate frame is fixedly installed lower joint pin 25, lower joint pin 25 is provided with the lower cross-under axle 26 arranged down, and the cross-under of lower cross-under axle 26, in lower jack hole 19, is provided with lower plane pressure bearing 27 between lower joint pin 25 and lower cross-under seat 18.
The front of secondary blackboard 20 is fixedly installed ground glass blackboard 28, and the reverse side of secondary blackboard is fixedly installed frosted projected background cloth 29.
The height span of secondary blackboard 20 is greater than the height span of blackboard 5, and the area of secondary blackboard is less than the area of blackboard.
Claims (3)
1. plate face instructional device expanded by culture and education blackboard, it is characterized in that comprising blackboard and secondary blackboard,
The back side of blackboard fixed frame is fixedly installed on main wall face by fixture,
Blackboard fixed frame is fixedly installed liner, on front side of liner, is fixedly installed blackboard,
The top edge of blackboard fixed frame is fixedly installed upper limb track, and the forward position of upper limb track is provided with grooved rail, and the left end of upper limb track is provided with arc to bending and forwards extending along side wall,
The lower limb of blackboard fixed frame is fixedly installed lower edge track, and the forward position of lower edge track is provided with lower grooved rail, and the left end of lower edge track is provided with the arc of upper limb track identical radian measure to bending and forwards extending along side wall,
The upper end trailing edge of activity box is fixedly installed upper whorl axial, and upper whorl axial is provided with top sheave, and top sheave is arranged in grooved rail, the flexible connection of top sheave and upper grooved rail roller,
The lower end trailing edge of activity box is fixedly installed lower wheel shaft, and lower wheel shaft is provided with lower sheave, and lower sheave is arranged in lower grooved rail, the flexible connection of lower sheave and lower grooved rail roller,
The upper end leading edge of activity box is fixedly installed cross-under seat, and upper cross-under seat offers jack hole,
The lower front edge of activity box is fixedly installed lower cross-under seat, and lower cross-under seat offers lower jack hole,
Secondary blackboard is fixedly installed on subplate frame,
A lateral edges upper end of subplate frame is fixedly installed joint pin, upper joint pin is provided with the upper cross-under axle arranged down, and the cross-under of upper cross-under axle, in upper jack hole, is provided with applanation bearing between upper joint pin and upper cross-under seat,
The lateral edges lower end of this subplate frame is fixedly installed lower joint pin, lower joint pin is provided with the lower cross-under axle arranged down, and the cross-under of lower cross-under axle, in lower jack hole, is provided with lower plane pressure bearing between lower joint pin and lower cross-under seat.
2. plate face instructional device expanded by culture and education blackboard according to claim 1, and it is characterized in that the front of secondary blackboard is fixedly installed ground glass blackboard, the reverse side of secondary blackboard is fixedly installed frosted projected background cloth.
3. plate face instructional device expanded by culture and education blackboard according to claim 1, and it is characterized in that the height span of secondary blackboard is greater than the height span of blackboard, the area of secondary blackboard is less than the area of blackboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178057.0U CN204586230U (en) | 2015-03-27 | 2015-03-27 | Plate face instructional device expanded by culture and education blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178057.0U CN204586230U (en) | 2015-03-27 | 2015-03-27 | Plate face instructional device expanded by culture and education blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204586230U true CN204586230U (en) | 2015-08-26 |
Family
ID=53922422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520178057.0U Expired - Fee Related CN204586230U (en) | 2015-03-27 | 2015-03-27 | Plate face instructional device expanded by culture and education blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204586230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150719A (en) * | 2015-09-22 | 2015-12-16 | 孙士江 | Multifunctional blackboard |
| CN109109520A (en) * | 2018-10-16 | 2019-01-01 | 韩金轩 | Strengthened glass blackboard is used in a kind of teaching |
-
2015
- 2015-03-27 CN CN201520178057.0U patent/CN204586230U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150719A (en) * | 2015-09-22 | 2015-12-16 | 孙士江 | Multifunctional blackboard |
| CN105150719B (en) * | 2015-09-22 | 2017-07-07 | 孙士江 | A kind of multi-functional blackboard |
| CN109109520A (en) * | 2018-10-16 | 2019-01-01 | 韩金轩 | Strengthened glass blackboard is used in a kind of teaching |
| CN109109520B (en) * | 2018-10-16 | 2020-08-21 | 上海众屹科技有限公司 | Toughened glass blackboard for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |