CN206379006U - Think political affairs teaching demonstration device - Google Patents
Think political affairs teaching demonstration device Download PDFInfo
- Publication number
- CN206379006U CN206379006U CN201621431338.3U CN201621431338U CN206379006U CN 206379006 U CN206379006 U CN 206379006U CN 201621431338 U CN201621431338 U CN 201621431338U CN 206379006 U CN206379006 U CN 206379006U
- Authority
- CN
- China
- Prior art keywords
- column
- connecting rod
- fixed
- support feet
- block
- 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
Think political affairs teaching demonstration device the utility model discloses one kind, it is characterised in that：Including the first column, second column and Scroll projection screen, upper winding shaft contiguous block is fixed with the left of first column, lower winding shaft contiguous block, the spool two ends of the Scroll projection screen are rotatably installed in upper winding shaft contiguous block respectively, on lower winding shaft contiguous block, the first fluting and the second fluting being vertically arranged are offered on first column and the second column respectively, the location hook of the locating ring for catching on Scroll projection screen is fixed with second fluting, the utility model, which thinks political affairs teaching demonstration device, to deploy when in use, stored collapsed when unwanted, improve the adaptability used classroom scene.
Description
Technical field
The utility model is related to a kind of think of political affairs teaching demonstration device.
Background technology
Ideological and political education refers to society or social groups certain concept, political point view, the code of ethic, to it
Member applies purposeful, planned and organized influence, them is formed the society for the morality for meeting certain society need
Practical activity.Think the important component that political affairs teaching is college teaching, because the think of political affairs teaching of colleges and universities is interdisciplinary limitation, because
And the student for thinking political affairs teaching is passed through frequently with Large classes, even more than more than 200 student listens to the teacher simultaneously, traditional multimedia religion
It is due to student's distance projection in classroom rear end although the projection displaying process in teaching process can be solved by learning classroom
Screen farther out, thus more can not clearly see the teaching courseware content of projection displaying clearly.Existing processing mode is in classroom
Between position set up projection screen, can in classroom rear end student provide teaching projection displaying teaching courseware content so that
Student in classroom rear end more can clearly see the content of teaching courseware clearly by thinking political affairs teaching demonstration device.But it is such
Projection screen needs to be pre-installed on roof, and existing roof finishing uses assembled ceiling structure, therefore it is not very square to install
Just.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and providing a kind of can fold
Think political affairs teaching demonstration device.The think of political affairs teaching demonstration device can deploy when in use, it is not necessary to when stored collapsed,
Improve the adaptability used classroom scene.
The technical scheme in the invention for solving the above technical problem is：
One kind thinks political affairs teaching demonstration device, it is characterised in that：Including the first column, the second column and Scroll projection screen
Upper winding shaft contiguous block, lower winding shaft contiguous block, the spool two ends of the Scroll projection screen are fixed with the left of curtain, the first column
Upper winding shaft contiguous block is rotatably installed in respectively, on lower winding shaft contiguous block, it is vertical to be offered respectively on the first column and the second column
The positioning of the locating ring for catching on Scroll projection screen is fixed with the first fluting and the second fluting set, the second fluting
It is provided with the first upper connecting rod and the first lower connecting rod, the rear end face of the second column and installs on hook, the rear end face of the first column
There are the second upper connecting rod and the second lower connecting rod, one end of one end of the first upper connecting rod and the first lower connecting rod is hinged on
On the rear end face of one column, one end of second upper connecting rod and one end of the second lower connecting rod are hinged on the second column
On rear end face, the other end of the other end of the first upper connecting rod and the first lower connecting rod is respectively and fixedly provided with locking fixed block, and locking is solid
Determine to be fixed with inner ring gear on block, the other end of second upper connecting rod and the other end of the second lower connecting rod are respectively and fixedly provided with tooth
The locking offered on wheel, the gear and locking fixed block on the pin hole inserted for Fixed latches, the first upper connecting rod is consolidated
After determining on the gear that block is enclosed on the second upper connecting rod, Fixed latches are inserted, the first upper connecting rod and the second upper connecting rod is realized
Between fixation, after the locking fixed block on the first lower connecting rod is enclosed on the gear on the second lower connecting rod, insertion is fixed to insert
Pin, realizes the fixation between the first lower connecting rod and the second lower connecting rod, and the lower end of the first column and the second column is mounted on
Folding type supporting leg structure.
The operation principle that the utility model thinks political affairs teaching demonstration device is as follows, and the first column, the second column are separated into what
When distance, after the locking fixed block on the first upper connecting rod is enclosed on the gear on the second upper connecting rod, insertion is fixed to insert
Pin, realizes that the locking fixed block on the fixation between the first upper connecting rod and the second upper connecting rod, the first lower connecting rod is enclosed on the
After on gears on two lower connecting rods, Fixed latches are inserted, the fixation between the first lower connecting rod and the second lower connecting rod is realized,
Folding type supporting leg structure is opened, support is realized；Projection screen will be pulled out, and locating ring will be hung on location hook, so as to realize
The expansion of projection screen.
In said process, inner ring gear and gear cooperation can realize angle between the first upper connecting rod and the second upper connecting rod
The fixation of degree and angle between the first lower connecting rod and the second lower connecting rod, the first upper connecting rod and the second upper connecting rod it
Between angle and the distance between the first column, the second column phase between angle and the first lower connecting rod and the second lower connecting rod
Close, the angle between the first upper connecting rod and the second upper connecting rod between angle and the first lower connecting rod and the second lower connecting rod
Bigger, distance is more remote between the first column, the second column, so as to by controlling the first upper connecting rod and the second upper connecting rod
Between between angle and the first lower connecting rod and the second lower connecting rod angle control, the first column, the spacing of the second column
From so as to control the projection demand of different in width.
Preferably, the folding type supporting leg structure include the first support feet, the second support feet, the 3rd support feet and
One end, one end of the second support feet, one end of the 3rd support feet of the first support feet on fixed fixture block, the first column are cut with scissors respectively
The one end for the first support feet being connected on front, left surface and the back side of the first column, the second column, the one of the second support feet
End, one end of the 3rd support feet are respectively hinged at front, right flank and the back side of the second column, and the section of fixed fixture block is in Contraband word
Shape, the lower end of first column and the second column opens up the lower bayonet slot being caught in for fixed fixture block, when fixed fixture block is caught in down
After neck, the lower surface of fixed fixture block is pressed in the first support feet, the second support feet, in the 3rd support feet, so that first
Spike, the second support feet, the 3rd support feet can not be flipped up, so as to realize supporting role.
Preferably, the lower end of first column and the second column opens up the upper neck being caught in for fixed fixture block, institute
The encirclement block for being fixed with that section is in Contraband font on fixed fixture block is stated, first column, the second column are supported using steel matter, institute
Fixed fixture block is stated to be made of magnet.First support feet, the second support feet, the 3rd support feet are under vertical state, and 180 ° turn
Dynamic fixed fixture block, and cause fixed fixture block to be caught in neck, surround block and surround the first support feet, the second support feet, the 3rd support
Pin upper end, so as to realize the first support feet, the second support feet, the folding of the 3rd support feet.
The utility model compared with prior art, with advantages below and effect：The utility model thinks political affairs teaching displaying dress
Put to deploy when in use, it is not necessary to when stored collapsed, improve the adaptability used classroom scene.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model embodiment thinks political affairs teaching demonstration device.
Fig. 2 is the fixation principle schematic diagram of the utility model embodiment folding type supporting leg structure.
Fig. 3 is that the utility model embodiment fixes the structural representation that fixture block is caught in neck.
Fig. 4 is the structural representation of the utility model embodiment folding type supporting leg structure.
Fig. 5 is the structural representation that the utility model embodiment fixes fixture block.
Fig. 6 is the utility model embodiment inner ring gear and gear fit structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Referring to Fig. 1-Fig. 6, the present embodiment thinks political affairs teaching demonstration device, including the first column 1, the second column 2 and spool
Formula projection screen 3, the left side of the first column 1 is fixed with upper winding shaft contiguous block 11, lower winding shaft contiguous block 12, the Scroll projection
The spool two ends of screen 3 are rotatably installed in upper winding shaft contiguous block 11, on lower winding shaft contiguous block 12 respectively, the first column 1 and second
Offer and be fixed with the first fluting 13 and the second fluting 21 being vertically arranged, the second fluting 21 for catching on respectively on column 2
The He of first upper connecting rod 41 is installed on the location hook 22 of the locating ring 31 of Scroll projection screen 3, the rear end face of the first column 1
It is provided with first lower connecting rod 42, the rear end face of the second column 2 on the second upper connecting rod 43 and the second lower connecting rod 44, first
One end of connecting rod 41 and one end of the first lower connecting rod 42 are hinged on the rear end face of the first column 1, are connected on described second
One end of extension bar 43 and one end of the second lower connecting rod 44 are hinged on the rear end face of the second column 2, the first upper connecting rod 41
The other end and the first lower connecting rod 42 the other end be respectively and fixedly provided with locking fixed block 45, locking fixed block 45 on be fixed with gear
The other end of inner ring 46, the other end of second upper connecting rod 43 and the second lower connecting rod 44 is respectively and fixedly provided with gear 47, described
The locking offered on gear 47 and locking fixed block 45 on the pin hole 48 inserted for Fixed latches, the first upper connecting rod 41 is consolidated
After determining on the gear 47 that block 45 is enclosed on the second upper connecting rod 43, Fixed latches are inserted, the first upper connecting rod 41 and second is realized
Locking fixed block 45 on fixation between upper connecting rod 43, the first lower connecting rod 42 is enclosed on the gear on the second lower connecting rod 44
After on 47, Fixed latches are inserted, the fixation between the first lower connecting rod 42 and the second lower connecting rod 44, the He of the first column 1 is realized
The lower end of second column 2 is mounted on folding type supporting leg structure 5.The folding type supporting leg structure 5 includes the first support feet
51st, one end of the first support feet 51 on the second support feet 52, the 3rd support feet 53 and fixed fixture block 54, the first column 1, the
One end, one end of the 3rd support feet 53 of two support feets 52 are respectively hinged at front, left surface and the back side of the first column 1, the
One end, one end of the second support feet 52, one end of the 3rd support feet 53 of the first support feet 51 on two columns 2 are respectively hinged at
Front, right flank and the back side of second column 2, the section of fixed fixture block 54 is in Contraband font, the column of the first column 1 and second
2 lower end opens up the lower bayonet slot 61 being caught in for fixed fixture block 54, after fixed fixture block 54 is caught in lower bayonet slot 61, fixed fixture block 54
Lower surface be pressed in the first support feet 51, the second support feet 52, in the 3rd support feet 53 so that the first support feet 51,
Two support feets 52, the 3rd support feet 53 can not be flipped up, so as to realize supporting role.The column 2 of first column 1 and second
Lower end open up the bag for being fixed with that section is in Contraband font on the upper neck 62 being caught in for fixed fixture block 54, the fixed fixture block 54
Block 55 is enclosed, first column 1, the second column 2 are made using the support of steel matter, the fixed fixture block 54 of magnet.
The operation principle that the utility model thinks political affairs teaching demonstration device is as follows, and the first column 1, the second column 2 are separated
Distance when, after the locking fixed block 45 on the first upper connecting rod 41 is enclosed on the gear 47 on the second upper connecting rod 43,
Fixed latches are inserted, are realized on the fixation between the first upper connecting rod 41 and the second upper connecting rod 43, the first lower connecting rod 42
After locking fixed block 45 is enclosed on the gear 47 on the second lower connecting rod 44, Fixed latches are inserted, the first lower connecting rod 42 is realized
And the second fixation between lower connecting rod 44, folding type supporting leg structure 5 is opened, support is realized；Projection screen will be pulled out, and will
Locating ring is hung on location hook 22, so as to realize the expansion of projection screen.
In said process, inner ring gear 46 and the cooperation of gear 47 can realize the first upper connecting rod 41 and the second upper connecting rod
The fixation of angle between 43 between angle and the first lower connecting rod 42 and the second lower connecting rod 44, the He of the first upper connecting rod 41
Angle and the first column between second upper connecting rod 43 between angle and the first lower connecting rod 42 and the second lower connecting rod 44
1st, the distance between second column 2 correlation, connects between the first upper connecting rod 41 and the second upper connecting rod 43 under angle and first
Angle between the lower connecting rod 44 of extension bar 42 and second is bigger, and distance is more remote between the first column 1, the second column 2, so as to
By controlling angle and the first lower connecting rod 42 and second time connection between the first upper connecting rod 41 and the second upper connecting rod 43
Angle control between bar 44, distance between the first column 1, the second column 2, so as to control the projection demand of different in width.
When needing to fold, the first support feet 51, the second support feet 52, the 3rd support feet 53 are under vertical state,
180 ° rotate fixed fixture block 54, and cause fixed fixture block 54 to be caught in neck 62, surround block 55 and surround the first support feet 51, second
Support feet 52, the upper end of the 3rd support feet 53, so as to realize the first support feet 51, the second support feet 52, the folding of the 3rd support feet 53
It is folded.
Above content described in this specification is only to the utility model example explanation.The utility model
Person of ordinary skill in the field can make various modifications or supplement to described specific embodiment or use class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
Enclose, protection domain of the present utility model all should be belonged to.
Claims (3)
1. one kind thinks political affairs teaching demonstration device, it is characterised in that：Including the first column, the second column and Scroll projection screen
Upper winding shaft contiguous block, lower winding shaft contiguous block, the spool two ends of the Scroll projection screen are fixed with the left of curtain, the first column
Upper winding shaft contiguous block is rotatably installed in respectively, on lower winding shaft contiguous block, it is vertical to be offered respectively on the first column and the second column
The positioning of the locating ring for catching on Scroll projection screen is fixed with the first fluting and the second fluting set, the second fluting
It is provided with the first upper connecting rod and the first lower connecting rod, the rear end face of the second column and installs on hook, the rear end face of the first column
There are the second upper connecting rod and the second lower connecting rod, one end of one end of the first upper connecting rod and the first lower connecting rod is hinged on
On the rear end face of one column, one end of second upper connecting rod and one end of the second lower connecting rod are hinged on the second column
On rear end face, the other end of the other end of the first upper connecting rod and the first lower connecting rod is respectively and fixedly provided with locking fixed block, and locking is solid
Determine to be fixed with inner ring gear on block, the other end of second upper connecting rod and the other end of the second lower connecting rod are respectively and fixedly provided with tooth
Offered on wheel, the gear and locking fixed block under the pin hole inserted for Fixed latches, the first column and the second column
End is mounted on folding type supporting leg structure.
2. think of political affairs teaching demonstration device according to claim 1, it is characterised in that：The folding type supporting leg structure includes
One end of the first support feet on first support feet, the second support feet, the 3rd support feet and fixed fixture block, the first column, the
One end of two support feets, one end of the 3rd support feet are respectively hinged at front, left surface and the back side of the first column, the second column
On one end, one end of the second support feet, one end of the 3rd support feet of the first support feet be respectively hinged at the second column just
Face, right flank and the back side, the section of fixed fixture block is in Contraband font, and the lower end of first column and the second column is opened up for solid
Determine the lower bayonet slot that fixture block is caught in.
3. think of political affairs teaching demonstration device according to claim 1, it is characterised in that：First column and the second column
Lower end opens up the encirclement block for being fixed with that section is in Contraband font on the upper neck being caught in for fixed fixture block, the fixed fixture block, institute
State the first column, the second column to support using steel matter, the fixed fixture block is made of magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621431338.3U CN206379006U (en) | 2016-12-23 | 2016-12-23 | Think political affairs teaching demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621431338.3U CN206379006U (en) | 2016-12-23 | 2016-12-23 | Think political affairs teaching demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206379006U true CN206379006U (en) | 2017-08-04 |
Family
ID=59407339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621431338.3U Expired - Fee Related CN206379006U (en) | 2016-12-23 | 2016-12-23 | Think political affairs teaching demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206379006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012524A (en) * | 2021-02-03 | 2021-06-22 | 华北水利水电大学 | Hydrological test teaching device |
-
2016
- 2016-12-23 CN CN201621431338.3U patent/CN206379006U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113012524A (en) * | 2021-02-03 | 2021-06-22 | 华北水利水电大学 | Hydrological test teaching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20171223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |