CN203563851U - Teaching desk - Google Patents
Teaching desk Download PDFInfo
- Publication number
- CN203563851U CN203563851U CN201320793336.9U CN201320793336U CN203563851U CN 203563851 U CN203563851 U CN 203563851U CN 201320793336 U CN201320793336 U CN 201320793336U CN 203563851 U CN203563851 U CN 203563851U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- support
- gear
- crane
- bracket
- 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 teaching desk, which comprises a base, wherein the base is fixedly connected with a bracket, the bracket is slidingly connected with lifting frames and is provided with a power driving device, each lifting frame is driven by the power driving device to slide vertically along the bracket, the power driving device comprises a first support seat, the first support seat is fixedly arranged on the bracket and is rotationally connected with a worm, the bracket is fixedly connected with two second support seats, a transmission shaft is rotationally connected between the two second support seats, the middle part of the transmission shaft is fixedly connected with a gear, the gear and the worm are connected in a transmission way, the two ends of the transmission shaft are respectively and fixedly connected with a gear wheel, each gear wheel is connected with each lifting frame in the transmission way, each lifting frame is fixedly connected with a rack, each gear wheel is connected with each rack in the transmission way, the base is fixedly connected with motors, a driving shaft of each motor penetrates through each bracket and is connected with a driving wheel in the transmission way, the worm is fixedly connected with a driven wheel, and the driving wheel and the driven wheel are connected through a pulley in the transmission way. The teaching desk has the advantages that a teacher can conveniently adjust the height of a desktop according to different heights, and the convenience in use is realized.
Description
Technical field
The utility model relates to teaching aid technical field, relates to specifically a kind of lectern.
Background technology
Teacher is saying class hour, and lectern is most important teaching aid, but existing lectern height can not regulate, enable to regulate and also need manual adjustment, waste time and energy, the teacher that can not meet different heights uses, and often because height and lectern height do not mate, affects teaching effect and reduces personal image.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, and a kind of Height Adjustable lectern is provided.
For addressing the above problem, the utility model is by the following technical solutions: a kind of lectern, comprise base, on described base, be fixedly connected with support, on described support, slidably connect crane, described support is provided with Power Drive Unit, and described crane can slide up and down along support under the drive of Power Drive Unit;
Described Power Drive Unit comprises the first bearing being fixed on support, on described the first bearing, be rotatably connected to worm screw, on described support, be fixedly connected with two the second bearings, between described two the second bearings, be rotatably connected to power transmission shaft, the centre position of described power transmission shaft is fixedly connected with worm gear, described worm gear is connected with worm-drive, the two ends of described power transmission shaft are fixedly connected with respectively gear, described gear and crane are in transmission connection, on described crane, be fixedly connected with tooth bar, described wheel and rack is in transmission connection, on described base, be fixedly connected with motor, the driving shaft of described motor is connected with driving wheel through support, on described worm screw, be fixedly connected with driven pulley, between described driving wheel and driven pulley, by belt transmission, be connected.
Below further improvement of the utility model:
Between described support and crane, by fixture block, link together.
Further improve:
The outside of described support is fixedly connected with protective cover.
The utility model adopts technique scheme, and teacher can conveniently regulate according to different height the height of desktop, easy to use.
Below in conjunction with accompanying drawing the technical solution of the utility model, be described further.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Accompanying drawing 2 is the right view of accompanying drawing 1.
In figure: 1-base; 2-support; 3-desktop; 4-crane; 5-fixture block; 6-protective cover; 7-motor; 8-driving shaft; 9-driving wheel; 10-driven pulley; 11-the first bearing; 12-tooth bar; 13-worm screw; 14-worm gear; 15-the second bearing; 16-power transmission shaft; 17-gear.
The specific embodiment
Embodiment, as shown in Figure 1 and Figure 2, a kind of lectern, comprise the base 1 being fixedly connected with ground, on described base 1, be fixedly connected with support 2, on described support 2, slidably connect crane 4, described support 2 is provided with Power Drive Unit, and described crane 4 can slide up and down along support 2 under the drive of Power Drive Unit;
Described Power Drive Unit comprises the first bearing 11 being fixed on support 2, on described the first bearing 11, be rotatably connected to worm screw 13, on described support 2, be fixedly connected with two the second bearings 15, between described two the second bearings 15, be rotatably connected to power transmission shaft 16, the centre position of described power transmission shaft 16 is fixedly connected with worm gear 14, described worm gear 14 is in transmission connection with worm screw 13, the two ends of described power transmission shaft 16 are fixedly connected with respectively gear 17, described gear 17 is in transmission connection with crane 4, on described crane 4, be fixedly connected with tooth bar 12, described gear 17 is in transmission connection with tooth bar 12, on described base 1, be fixedly connected with motor 7, the driving shaft 8 of described motor 7 is connected with driving wheel 9 through support 2, on described worm screw 13, be fixedly connected with driven pulley 10, between described driving wheel 9 and driven pulley 10, by belt transmission, be connected.
Between described support 2 and crane 4, by fixture block 5, link together, fixture block 5 can play fixing and guide effect.
The outside of described support 2 is fixedly connected with protective cover 6, and protective cover 6 can play the effect of protection personal security.
During use, starter motor 7, motor 7 drives driving shaft 8 to rotate, and driving shaft 8 drives driving wheel 9 to rotate, driving wheel 9 drives driven pulley 10 to rotate, driven pulley 10 drives worm screw 13 to move, and worm screw 13 drives worm gear 14 to move, and worm gear 14 rotates by power transmission shaft 16 driven gears 17, gear 17 is with carry-over bar 12 to move, tooth bar 12 drives crane 4 to move, thereby drives the desktop 3 on crane 4 to move up and down, and completes the lifting of desktop.
Claims (3)
1. a lectern, comprise base (1), it is characterized in that: on described base (1), be fixedly connected with support (2), on described support (2), slidably connect crane (4), described support (2) is provided with Power Drive Unit, and described crane (4) can slide up and down along support (2) under the drive of Power Drive Unit;
Described Power Drive Unit comprises the first bearing (11) being fixed on support (2), on described the first bearing (11), be rotatably connected to worm screw (13), on described support (2), be fixedly connected with two the second bearings (15), between described two the second bearings (15), be rotatably connected to power transmission shaft (16), the centre position of described power transmission shaft (16) is fixedly connected with worm gear (14), described worm gear (14) is in transmission connection with worm screw (13), the two ends of described power transmission shaft (16) are fixedly connected with respectively gear (17), described gear (17) is in transmission connection with crane (4), on described crane (4), be fixedly connected with tooth bar (12), described gear (17) is in transmission connection with tooth bar (12), on described base (1), be fixedly connected with motor (7), the driving shaft (8) of described motor (7) is connected with driving wheel (9) through support (2), on described worm screw (13), be fixedly connected with driven pulley (10), between described driving wheel (9) and driven pulley (10), by belt transmission, be connected.
2. a kind of lectern according to claim 1, is characterized in that: between described support (2) and crane (4), by fixture block (5), link together.
3. a kind of lectern according to claim 2, is characterized in that: the outside of described support (2) is fixedly connected with protective cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793336.9U CN203563851U (en) | 2013-11-22 | 2013-11-22 | Teaching desk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793336.9U CN203563851U (en) | 2013-11-22 | 2013-11-22 | Teaching desk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203563851U true CN203563851U (en) | 2014-04-30 |
Family
ID=50531621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320793336.9U Expired - Fee Related CN203563851U (en) | 2013-11-22 | 2013-11-22 | Teaching desk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203563851U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520360A (en) * | 2014-09-30 | 2016-04-27 | 汪希奎 | Multipurpose mechanical lifting platform |
| CN106108377A (en) * | 2016-08-18 | 2016-11-16 | 叶芳 | A kind of automatic lifting monitoring dais |
| CN106108376A (en) * | 2016-08-18 | 2016-11-16 | 叶芳 | A kind of hand hoisting formula monitoring dais |
-
2013
- 2013-11-22 CN CN201320793336.9U patent/CN203563851U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520360A (en) * | 2014-09-30 | 2016-04-27 | 汪希奎 | Multipurpose mechanical lifting platform |
| CN106108377A (en) * | 2016-08-18 | 2016-11-16 | 叶芳 | A kind of automatic lifting monitoring dais |
| CN106108376A (en) * | 2016-08-18 | 2016-11-16 | 叶芳 | A kind of hand hoisting formula monitoring dais |
| CN106108377B (en) * | 2016-08-18 | 2018-05-25 | 王骏飞 | A kind of automatic lifting monitors dais |
| CN106108376B (en) * | 2016-08-18 | 2018-07-27 | 金云初 | A kind of hand hoisting formula monitoring dais |
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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: 20140430 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |