CN209463552U - A kind of multimedia teaching lectern - Google Patents
A kind of multimedia teaching lectern Download PDFInfo
- Publication number
- CN209463552U CN209463552U CN201822062660.9U CN201822062660U CN209463552U CN 209463552 U CN209463552 U CN 209463552U CN 201822062660 U CN201822062660 U CN 201822062660U CN 209463552 U CN209463552 U CN 209463552U
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- lifting
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- lectern
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- connecting rod
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Abstract
The utility model relates to Teaching Technology of Multimedia field, specially a kind of multimedia teaching lectern, including lectern lower table bulk and lectern upper table bulk；Lectern lower table bulk upper end is respectively arranged with two groups of lifting drive rods and two groups of lifting tappets, the other end of two groups of lifting drive rods and two groups of lifting tappets is fixedly connected with lectern upper table bulk, hollow placement groove is machined on lectern upper table bulk, screen elevator apparatus is provided in hollow placement groove, screen elevator apparatus is fixedly connected with one group of display screen, is placed with computer in lectern lower table bulk；The utility model lectern lower table bulk and lectern upper table bulk, as split type lectern, height adjustment can be carried out by intermediate lifting drive rod, hollow placement groove is also machined on lectern upper table bulk, screen elevator apparatus is provided in hollow placement groove, screen elevator apparatus is fixedly connected with one group of display screen, makes the existing several functions of lectern, moreover it is possible to meet the needs of multimedia teaching.
Description
Technical field
The utility model relates to Teaching Technology of Multimedia field more particularly to a kind of multimedia teaching lecterns.
Background technique
Multimedia teaching refers in teaching process, the characteristics of according to instructional objective and teaching object, by Instructional Design,
Reasonably select and use Modern Teaching Medium, and with Traditional teaching means organic assembling, participate in whole course of teaching, jointly with a variety of
Media information acts on student, forms reasonable teaching process structure, the teaching efficiency for being optimal；Multimedia teaching is in fact
Have existed since ancient times, and teacher imparts knowledge to students by text, sound, picture always.But start to adopt in the 1980s
With the integrated uses such as a variety of electronic mediums such as magic lantern, projection, recording, video recording and classroom instruction, this instructional technology is also known as more matchmakers
Body combination teaching or electronic teaching, from the nineties, with the rapid development of computer technology and universal, multimedia computer is
Gradually status is used instead of the synthesis of previous Multiform Teaching Media.Therefore, our usually said multimedia teaching now
It is to refer in particular to multimedia computer and the instructional process carried out by means of the multimedia teaching software of pre-production；
Current lectern is generally metal lectern or wooden lectern, is only capable of playing the role of holding teaching aid, makees
Lectern for multimedia teaching is either functional or diversity is all no longer satisfied teaching demand.
Summary of the invention
The utility model overcomes above-mentioned the deficiencies in the prior art, provides a kind of multimedia teaching projector installation branch
Frame.Lectern lower table bulk and lectern upper table bulk is arranged in the utility model, as split type lectern, can be driven by intermediate lifting
Bar carries out height adjustment, and hollow placement groove is also machined on lectern upper table bulk, is provided with screen in the hollow placement groove
Curtain lifting device, the screen elevator apparatus are fixedly connected with one group of display screen, make the existing several functions of lectern, moreover it is possible to full
The demand of sufficient multimedia teaching.
The technical solution of the utility model includes:
A kind of multimedia teaching lectern, including lectern lower table bulk, lectern upper table bulk, lifting drive rod, lifting tappet,
Screen elevator apparatus and display screen；Lectern lower table bulk upper end be respectively arranged with two groups of lifting drive rods and two groups of liftings with
The other end of lever, two groups of lifting drive rods and two groups of lifting tappets is fixedly connected with lectern upper table bulk, on the lectern
It is machined with hollow placement groove in desk body, screen elevator apparatus, the screen lifting dress are provided in the hollow placement groove
It sets and is fixedly connected with one group of display screen, lectern upper table bulk upper end is machined with one group and display screen size cooperation
Screen exports, and is provided with screen protection door-plate in the screen outlet, screen protection door-plate one end is connected by hinge part
It is flexibly connected with the lectern upper table bulk, intermediate bulkhead is provided on the lectern lower table bulk, the intermediate bulkhead side is meter
Calculation machine holding chamber, the other side are heat dissipation chamber, and radiator is provided in the heat dissipation chamber, is placed in the computer holding chamber
Computer, the computer are connect with the display screen data, the computer, the radiator and the display screen
It is electrically connected to a power source by control switch.
Further, the lifting drive rod includes that one group of lifting drive sleeve and one group of lifting drive inner cylinder, the liter
One group of lifting electric putter is provided in drop drive sleeve, the fixing end setting of the lifting electric putter is in lifting drive sleeve
Bottom, the movable end of the lifting electric putter are fixedly connected with lifting driving inner cylinder, and the lifting drives inner cylinder lower end
It is provided with one group of limit outer snap ring, the lifting drive sleeve top is provided with snap ring in one group of limit；Lifting electric putter pushes away
Dynamic lifting driving inner cylinder moves in lifting drive sleeve, completes the driving of lifting, and goes up and down driving inner cylinder lower end and be provided with one
Group limit outer snap ring, the lifting drive sleeve top are provided with snap ring in one group of limit, snap ring in limit outer snap ring and limit
Cooperation guarantees that lifting driving inner cylinder will not remove jacking sleeve.
Further, the lifting tappet includes that one group of lifting follow-up sleeve and one group of lifting are servo-actuated inner cylinder, the liter
It drops servo-actuated inner cylinder to be arranged inside the lifting follow-up sleeve, described go up and down equidistantly is machined with several groups limit on servo-actuated inner cylinder
Threaded hole is machined with one group of installation threaded hole on the lifting follow-up sleeve, is provided with one group and institute in the installation threaded hole
State the limit matched limit jackscrew of threaded hole；Drive rod is gone up and down as actuator during driving the lifting of lectern upper table bulk,
After the completion of driving work, the position for going up and down follow-up sleeve and the servo-actuated inner cylinder of lifting is fixed by limit jackscrew, guarantees that lifting is driven
After lever stops working, the pressure that lectern upper table bulk gives lifting electric putter can be divided equally, and be will not influence lifting electric and pushed away
The service life of bar.
Further, the screen elevator apparatus includes lifting pedestal, the lifting pedestal upper surface respectively with first liter
Connecting rod group and the second lifting connecting rod group drop, and the first lifting connecting rod group and third lifting connecting rod group are hinged, described
Second lifting connecting rod group and the 4th lifting connecting rod group are hinged, the third lifting connecting rod group and the 4th lifting connecting rod group
Top is hinged with lifting top plate respectively, is provided with the display screen on the lifting top plate, described first go up and down connecting rod group,
Second lifting connecting rod group, third lifting connecting rod group includes two groups of connecting rods with the 4th lifting connecting rod group and two groups connect
Bar is separately positioned on the two sides of the lifting pedestal, is connected between two connecting rods of the first lifting connecting rod group by centre
Extension bar is fixedly installed one group of first driving sliding block, and described second goes up and down between two groups of connecting rods of connecting rod group also by centre
Connecting rod is fixedly installed one group of second driving sliding block, is machined on the first driving sliding block and the second driving sliding block
One group of mounting hole is provided with ball-screw nut in the mounting hole, one group is provided in ball-screw nut described in two groups
Lead screw is driven, the driving lead screw is fixedly connected with the main shaft of one group of driving motor, and the lifting driving motor passes through mounting base
It is fixed on the lifting pedestal；Go up and down driving motor driving lead screw rotation, the first driving sliding block and the second driving sliding block
Interior internal thread of ball screw nut on the contrary, when lead screw rotates in the forward direction, transport in opposite directions by the first driving sliding block and the second driving sliding block
Dynamic, driving lifting top plate rises, and when driving lead screw reversion, the first driving sliding block and the second driving sliding block are backwards to movement, driving
Go up and down top plate decline.
Further, the radiator includes two groups of cooling fans, and cooling fan described in two groups is set side by side from top to bottom
It sets, several groups heat release hole is machined on the intermediate bulkhead.
Further, fluted handle is processed on the screen protection door-plate.
The utility model has the advantages that compared with the existing technology
Lectern lower table bulk and lectern upper table bulk is arranged in the utility model, as split type lectern, can pass through intermediate liter
It drops drive rod and carries out height adjustment, hollow placement groove is also machined on lectern upper table bulk, is set in the hollow placement groove
It is equipped with screen elevator apparatus, the screen elevator apparatus is fixedly connected with one group of display screen, make the existing several functions of lectern,
Also it is able to satisfy the demand of multimedia teaching.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the screen elevator apparatus of the utility model；
Fig. 3 is the first driving sliding block and the second driving sliding block relative motion schematic diagram of the utility model；
Fig. 4 is the structural schematic diagram of the lifting drive rod of the utility model；
Fig. 5 is the structural schematic diagram of the lifting tappet of the utility model.
Specific embodiment
The utility model is described in detail below with reference to attached drawing.
Show in conjunction with Fig. 1-Fig. 5, a kind of multimedia teaching lectern disclosed in the present embodiment, including lectern lower table bulk 1, lectern
Upper table bulk 2, lifting drive rod 3, lifting tappet 4, screen elevator apparatus 5 and display screen 6；1 upper end of lectern lower table bulk
It is respectively arranged with two groups of lifting drive rods 3 and two groups of lifting tappets 4, two groups of lifting drive rods 3 and two groups of lifting tappets 4
The other end is fixedly connected with lectern upper table bulk 2, is machined with hollow placement groove on the lectern upper table bulk 2, described hollow to put
It sets and is provided with screen elevator apparatus 5 in groove, the screen elevator apparatus 5 is fixedly connected with one group of display screen 6, the lectern
2 upper end of upper table bulk is machined with the screen outlet 21 of one group with display 6 dimensional fits of screen, setting in the screen outlet 21
There is screen protection door-plate 7, described 7 one end of screen protection door-plate is connected by hinge part and is flexibly connected with the lectern upper table bulk 2,
Intermediate bulkhead 8 is provided on the lectern lower table bulk 1,8 side of intermediate bulkhead is computer holding chamber 11, and the other side is scattered
Hot cell 12 is provided with radiator 9 in the heat dissipation chamber 12, computer, the meter is placed in the computer holding chamber 11
Calculation machine and 6 data connection of display screen, the computer, the radiator 9 and the display screen 6 pass through control
Switch is electrically connected to a power source.
Specifically, the lifting drive rod 3 includes that one group of lifting drive sleeve 31 and one group of lifting drive inner cylinder 32, it is described
One group of lifting electric putter 33 is provided in lifting drive sleeve 31, the fixing end setting of the lifting electric putter 33 is being gone up and down
31 bottom of drive sleeve, the movable end of the lifting electric putter 33 are fixedly connected with lifting driving inner cylinder 32, the liter
Drop driving 32 lower end of inner cylinder is provided with one group of limit outer snap ring 34, and 31 top of lifting drive sleeve is provided in one group of limit
Snap ring 35.
Specifically, the lifting tappet 4 includes that one group of lifting follow-up sleeve 41 and one group of lifting are servo-actuated inner cylinder 42, it is described
It goes up and down servo-actuated inner cylinder 42 to be arranged inside the lifting follow-up sleeve 41, if described go up and down equidistantly is machined on servo-actuated inner cylinder 42
Dry group limits threaded hole 43, is machined with one group of installation threaded hole on the lifting follow-up sleeve 41, sets in the installation threaded hole
It is equipped with one group and the matched limit jackscrew 44 of the limit threaded hole 43.
Specifically, the screen elevator apparatus 5 includes lifting pedestal 51,51 upper surface of lifting pedestal is respectively with first
Connecting rod group 52 and the second lifting connecting rod group 53 are gone up and down, the first lifting connecting rod group 52 and third go up and down connecting rod group 54
Hingedly, the second lifting connecting rod group 53 and the 4th lifting connecting rod group 55 are hinged, and the third goes up and down 54 He of connecting rod group
4th lifting 55 top of connecting rod group is hinged with lifting top plate 56 respectively, is provided with the display screen on the lifting top plate 56
6, the first lifting connecting rod group 52, second goes up and down connecting rod group 53, third lifting connecting rod group 54 and the 4th lifting connection
Bar group 55 includes the two sides that two groups of connecting rods and two groups of connecting rods are separately positioned on the lifting pedestal 51, first lifting
One group of first driving sliding block 57 is fixedly installed by middle brace rod between two connecting rods of connecting rod group 52, described second
It goes up and down and is fixedly installed one group of second driving sliding block 58, institute also by middle brace rod between two groups of connecting rods of connecting rod group 53
It states and is machined with one group of mounting hole on the first driving sliding block 57 and the second driving sliding block 58, be provided in the mounting hole
Ball-screw nut, is provided with one group of driving lead screw 59 in ball-screw nut described in two groups, the driving lead screw 59 and one group
The main shaft of driving motor is fixedly connected, and the lifting driving motor is fixed on the lifting pedestal 51 by mounting base.
Specifically, the radiator 9 includes two groups of cooling fans 91, cooling fan 91 described in two groups is arranged side by side from top to bottom
It is arranged, is machined with several groups heat release hole 81 on the intermediate bulkhead 8.
Specifically, processing fluted handle on the screen protection door-plate 7.
Above embodiments are exemplary description of this patent, do not limit its protection scope, those skilled in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (6)
1. a kind of multimedia teaching lectern, it is characterised in that: driven including lectern lower table bulk (1), lectern upper table bulk (2), lifting
Lever (3), lifting tappet (4), screen elevator apparatus (5) and display screen (6)；Lectern lower table bulk (1) the upper end difference
It is provided with two groups of lifting drive rods (3) and two groups of lifting tappets (4), two groups of lifting drive rods (3) and two groups of lifting tappets
(4) the other end is fixedly connected with lectern upper table bulk (2), is machined with hollow placement groove, institute on the lectern upper table bulk (2)
It states and is provided with screen elevator apparatus (5) in hollow placement groove, the screen elevator apparatus (5) is solid with one group of display screen (6)
Fixed connection, lectern upper table bulk (2) upper end is machined with one group and the screen of described display screen (6) dimensional fits exports
(21), it is provided with screen protection door-plate (7) in the screen outlet (21), described screen protection door-plate (7) one end passes through hinge
Connector is flexibly connected with the lectern upper table bulk (2), is provided with intermediate bulkhead (8) on the lectern lower table bulk (1), it is described in
Spacing board (8) side is computer holding chamber (11), and the other side is heat dissipation chamber (12), is provided with heat dissipation in the heat dissipation chamber (12)
Device (9), the computer holding chamber (11) is interior to be placed with computer, and the computer and display screen (6) data connect
It connects, the computer, the radiator (9) and the display screen (6) are electrically connected to a power source by control switch.
2. a kind of multimedia teaching lectern according to claim 1, it is characterised in that: lifting drive rod (3) packet
One group of lifting drive sleeve (31) and one group of lifting driving inner cylinder (32) are included, is provided with one group in the lifting drive sleeve (31)
The fixing end setting of lifting electric putter (33), the lifting electric putter (33) is going up and down drive sleeve (31) bottom, described
The movable end of lifting electric putter (33) is fixedly connected with lifting driving inner cylinder (32), under lifting driving inner cylinder (32)
End is provided with one group of limit outer snap ring (34), and lifting drive sleeve (31) top is provided with snap ring (35) in one group of limit.
3. a kind of multimedia teaching lectern according to claim 2, it is characterised in that: lifting tappet (4) packet
It includes one group of lifting follow-up sleeve (41) and one group of lifting is servo-actuated inner cylinder (42), it is described to go up and down servo-actuated inner cylinder (42) setting in the liter
Follow-up sleeve (41) inside drops, and described go up and down equidistantly is machined with several groups limit threaded hole (43), institute on servo-actuated inner cylinder (42)
It states and is machined with one group of installation threaded hole in lifting follow-up sleeve (41), be provided with one group and the limit in the installation threaded hole
The matched limit jackscrew (44) of threaded hole (43).
4. a kind of multimedia teaching lectern according to claim 1, it is characterised in that: the screen elevator apparatus (5)
Including lifting pedestal (51), lifting pedestal (51) upper surface connects with the first lifting connecting rod group (52) and the second lifting respectively
Extension bar group (53), hingedly, second lifting connects for first lifting connecting rod group (52) and third lifting connecting rod group (54)
Hingedly with the 4th lifting connecting rod group (55), third lifting connecting rod group (54) and the 4th goes up and down connecting rod to extension bar group (53)
Group (55) top respectively with lifting top plate (56) hingedly, the display screen (6) is provided on the lifting top plate (56), it is described
First lifting connecting rod group (52), the second lifting connecting rod group (53), third lifting connecting rod group (54) and the 4th lifting connection
Bar group (55) includes the two sides that two groups of connecting rods and two groups of connecting rods are separately positioned on the lifting pedestal (51), and described first
It goes up and down and one group of first driving sliding block (57) is fixedly installed by middle brace rod between two connecting rods of connecting rod group (52),
One group of second drive is fixedly installed also by middle brace rod between two groups of connecting rods of second lifting connecting rod group (53)
One group of mounting hole, institute are machined in movable slider (58), first driving sliding block (57) and second driving sliding block (58)
It states and is provided with ball-screw nut in mounting hole, one group of driving lead screw (59) is provided in ball-screw nut described in two groups,
The driving lead screw (59) is fixedly connected with the main shaft of one group of driving motor, and the lifting driving motor is set by mounting base fixation
It sets on the lifting pedestal (51).
5. a kind of multimedia teaching lectern according to claim 1, it is characterised in that: the radiator (9) includes
Two groups of cooling fans (91), cooling fan described in two groups (91) are set side by side from top to bottom, are machined on the intermediate bulkhead (8)
Several groups heat release hole (81).
6. a kind of multimedia teaching lectern according to claim 1, it is characterised in that: the screen protection door-plate (7)
The upper fluted handle of processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822062660.9U CN209463552U (en) | 2018-12-10 | 2018-12-10 | A kind of multimedia teaching lectern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822062660.9U CN209463552U (en) | 2018-12-10 | 2018-12-10 | A kind of multimedia teaching lectern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209463552U true CN209463552U (en) | 2019-10-08 |
Family
ID=68089014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822062660.9U Expired - Fee Related CN209463552U (en) | 2018-12-10 | 2018-12-10 | A kind of multimedia teaching lectern |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209463552U (en) |
-
2018
- 2018-12-10 CN CN201822062660.9U patent/CN209463552U/en not_active Expired - Fee Related
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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: 20191008 Termination date: 20201210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |