CN105559341A - Intelligent digital rostrum - Google Patents
Intelligent digital rostrum Download PDFInfo
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- CN105559341A CN105559341A CN201510981460.1A CN201510981460A CN105559341A CN 105559341 A CN105559341 A CN 105559341A CN 201510981460 A CN201510981460 A CN 201510981460A CN 105559341 A CN105559341 A CN 105559341A
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- table top
- motor
- opening
- screw mandrel
- closing
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/06—Reading-desks; Lecterns; Pulpits, i.e. free-standing with adjustable top leaf
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/10—Reading-desks; Lecterns; Pulpits, i.e. free-standing characterised by association with auxiliary devices, e.g. paper clamps, line indicators
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Abstract
The invention discloses an intelligent digital rostrum. The intelligent digital rostrum comprises a base with a central control box arranged on one side surface, and a platform surface arranged on the base, wherein the platform surface comprises a main platform surface, as well as a left splicing platform surface and a right splicing platform surface which cover the main platform surface; a liquid crystal display and a control panel are arranged on the upper surface of the main platform surface; the liquid crystal display is in rotational connection with the main platform surface via an overturning mechanism, so that the liquid crystal display can be in either a horizontal accommodating state or an upwardly turned and inclined working state; each splicing platform surface is connected with the main platform surface in a sliding manner via an open-close mechanism, so that the two splicing platform surfaces can be in either a closed state to be spliced together to cover the main platform surface or an open state to respectively slide to the left side and the right side and then be overlapped with the left side and the right side of the main platform surface. The intelligent digital rostrum is compact in structure, safe and convenient in operation, and convenient for storage and transportation, and has enough space to accommodate other auxiliary teaching equipment.
Description
Technical field
The present invention relates to a kind of education, teaching equipment, especially relate to a kind of intelligentized digital dais.
Background technology
Along with the fast development of digital technology, traditional dais substitute by the digital dais of various novelty.Existing digital dais has host computer, central control unit, display, dc source and keyboard with key supporting etc. usually, by the connection with projecting apparatus etc., projecting apparatus can be manipulated easily to play the contents of courses such as ppt courseware, thus realize multimedia teaching.But there are the following problems at existing digital dais: on the one hand, the table top at dais is shown device, keyboard, control panel etc. and occupies, and therefore, vacant table top is few, cannot the object such as placing laptop; On the other hand, if expand the table top at dais, then take up room large, thus difficulty when causing storage, transport.
In Chinese patent literature disclosed a kind of " Intelligent platform ", its notification number is CN203913900U, comprises the dais main body with dais table top, dais table top has an opening, extends an accommodation space in direction earthward along opening; Intelligent platform comprises the intelligent tutoring device be placed in accommodation space and the electric supply installation of powering to intelligent tutoring device; Wherein, intelligent tutoring device comprises frame panel, Intelligent touch operating mechanism, display screen, data interaction interface, circuit board and back shroud, frame panel and back shroud cooperatively interact composition one shell, Intelligent touch operating mechanism, display screen and circuit board are fixed between frame panel and back shroud successively, and Intelligent touch operating mechanism and display screen are electrically connected with circuit board respectively, data interaction interface to be arranged on back shroud and to be electrically connected with circuit board.This Intelligent platform can realize the Intelligent control in multimedia teaching.But it is little that such scheme still exists table top, be difficult to other auxiliary equipment, the table tops such as placing laptop and greatly then cause the problem storing transport difficult.
Summary of the invention
The table top that the object of the invention is to solve existing for existing digital dais is little, is difficult to other auxiliary equipment, the table tops such as placing laptop and greatly then causes and store the problem of transport difficult, provide a kind of compact conformation, handling safety convenient, be convenient to accumulating, there is sufficient space to place the intelligent digital dais of other auxiliary equipment simultaneously.
To achieve these goals, the present invention is by the following technical solutions:
A kind of intelligent digital dais, comprise the base that side is provided with middle control case, be arranged on the table top on base, described table top comprises a main table top and covers two, the left and right splicing table top of main table top, the upper surface of described main table top is provided with liquid crystal display and control panel, liquid crystal display is rotationally connected by switching mechanism and main table top, thus make liquid crystal display have the receiving state of a level and the duty of upwards tip tilt, described splicing table top is formed by switching mechanism and main table top and is slidably connected, thus make two splicing station masks have one to be stitched together and cover the closure state of main table top and one respectively to the opening being overlapped on main table-board to right or left both sides after the slippage of the left and right sides.
Table top of the present invention adopts splicing construction; when splicing table top and being in closure state; two, left and right splicing table top is spliced to form a complete table top; it can as generally speaking platform use; and make the equipment such as the liquid crystal display on main table top obtain good protection; the appearance and size of table top can be reduced simultaneously to greatest extent, be conducive to the accumulating at digital dais.When being controlled switching mechanism action by middle control case and making two splicing table tops remove respectively to the left and right sides, splicing table top enters opening, now whole table top is spliced by the main table top of centre and the splicing table top of the left and right sides, make the devices such as the liquid crystal display on main table top and control panel be in the state of exposing so that manipulation and using, the area that the splicing table top of both sides then substantially increases table top is convenient to the teaching aid equipments such as placing laptop and device simultaneously.In addition, liquid crystal display upwards overturns by switching mechanism, thus makes lecturer have a good visual angle.
As preferably, described switching mechanism comprises the rectangular frame be arranged on the downside of main table top, the outside that two splicing table top downsides are separated from each other is installed with horizontal slide bar and motor fixed rack respectively, the slide bar of two splicing table tops extends to the inside and is slidably connected with the left and right sides of rectangular frame respectively, described motor fixed rack side is provided with the screw mandrel sleeve pipe laterally extended to the inside, the opening and closing swivel nut being provided with coaxial opening and closing screw mandrel in screw mandrel sleeve pipe and being threaded on opening and closing screw mandrel, the sidewall of screw mandrel sleeve pipe is provided with the chute extended vertically, the outside of opening and closing swivel nut is provided with the spacing preiection radially stretching out chute, spacing preiection stretches out in the locating hole of chute part screens on rectangular frame, the opposite side of motor fixed rack is provided with opening and closing motor, the motor shaft of described opening and closing motor is coaxially connected with opening and closing screw mandrel, overcurrent protector is provided with in the loop of opening and closing motor.
Because the opening and closing swivel nut be connected with opening and closing wire rod thread is provided with the spacing preiection of screens in chute, therefore the rotation of opening and closing swivel nut can be stoped, spacing preiection screens is in the locating hole of rectangular frame simultaneously, therefore can stop moving axially of opening and closing swivel nut, thus opening and closing swivel nut is reliably located.When we need outwards to move splicing table top, manipulation by control panel makes opening and closing driven by motor opening and closing screw mandrel rotate forward, now opening and closing screw mandrel axially can move laterally under the effect of opening and closing swivel nut, thus drive splicing station to move towards outside by opening and closing motor, motor fixed rack, now the slide bar spliced on the downside of table top plays the support guide effect to splicing table top, guarantees that splicing table top steadily moves smoothly.Meanwhile, screw mandrel sleeve pipe is then moved together with opening and closing motor laterally by motor fixed rack, correspondingly, and spacing preiection then relative movement in the chute of screw mandrel sleeve pipe.Particularly, screw mandrel sleeve pipe can play a good protection to opening and closing screw mandrel, avoids entering of foreign material to make opening and closing screw mandrel occur stuck phenomenon, avoids Internal cable etc. to be wrapped on opening and closing screw mandrel simultaneously.And
As preferably, described splicing station face comprises the table top main body of fitting with the upper surface of main table top and bends by the front side edge of table top main body, back side edge, outer side edges edge the surrounding edge extended to form vertically downwards, before and after table top main body, the surrounding edge of side and the front and back side of main table top are fitted, and the lower edge of described surrounding edge is also provided with the flange flatly bent inwards.When splicing table top and closing, if be subject to the obstruction of foreign matter, the electric current of opening and closing motor can rise rapidly, now overcurrent protector action disconnecting circuit, thus can effectively avoid switching mechanism impaired, plays protective action to human body simultaneously.
The flange that before and after table top main body, the surrounding edge of both sides and surrounding edge lower edge bend inwards makes splicing table top reliably coated main table top, thus the supporting and location be both conducive to when splicing station face is moved, be conducive to again improving aesthetics, and the surrounding edge of surrounding edge outside table top main body and side, front and back links into an integrated entity, rigidity and the intensity of splicing table top can be improved significantly, avoid it to be out of shape.
As preferably, described motor fixed rack by be fitted in splicing table top downside connecting plate and vertically downward the installing plate be integrally connected on connecting plate form, thus make motor fixed rack L-shaped, described screw mandrel sleeve pipe is fixedly connected on the side of installing plate, installing plate is provided with connection via hole at corresponding screw mandrel sleeve pipe place, opening and closing motor is fixedly connected on the opposite side of installing plate, and the motor shaft of opening and closing motor is connected with opening and closing screw mandrel after connecting via hole, the through installing plate of described chute.
The motor fixed rack structure simple strength of L shape is high.Particularly, the through installing plate of chute on screw mandrel sleeve pipe, like this, can first opening and closing swivel nut be threaded on opening and closing screw mandrel during assembling, and then the opening and closing screw mandrel connected with the motor shaft of opening and closing motor is loaded screw mandrel sleeve pipe in away from screw mandrel sleeve pipe side by connecting via hole from installing plate together with opening and closing swivel nut, the spacing preiection now on opening and closing swivel nut then can enter from the through chute to installing plate easily.When opening and closing screw mandrel is in place, opening and closing motor can be fixed on the installing plate of motor fixed rack.Then the spacing preiection stretching out chute can load in the locating hole of rectangular frame by we, and is fixedly attached to by the connecting plate of motor fixed rack on the downside of splicing table top, thus completes assembling easily.
As preferably, described main table top upper surface is provided with display installing hole, described switching mechanism comprises the base plate be arranged on bottom display installing hole, be positioned at the display installation frame of display installing hole, display installation frame comprises the dividing plate of rectangle and is arranged on separator edge and the frame crossing with divider upright, thus in display installation frame, form upper and lower two cavitys, described liquid crystal display is positioned at the cavity on display installation frame top and is fixedly connected with dividing plate, the rear portion of the base plate left and right sides is respectively equipped with supporting base, the rear side of display installation frame left and right sides frame is rotationally connected respectively by the supporting base of the first rotating shaft and the base plate left and right sides, middle part on the downside of dividing plate is provided with to be arranged and rotating upset screw mandrel along the longitudinal direction, one motor shaft being fixedly installed on the upset motor on the downside of dividing plate is connected with upset screw mandrel, also laterally being provided with on the downside of dividing plate can the cross bar of slide anteroposterior, described upset screw mandrel is formed with the middle part of cross bar and is threaded, the middle part of the base plate left and right sides is respectively equipped with strut socket, the two ends, left and right of cross bar are hinged with strut respectively, the other end of two struts is hinged respectively by the strut socket of the second rotating shaft with corresponding side, the downside of described display installation frame is provided with the display rolling-proof device that can control to overturn motor.
Switching mechanism is convenient to the adjustment of the viewing angle of liquid crystal display, when overturning driven by motor upset screw mandrel and rotating forward, thus drive the cross bar be threaded on upset screw mandrel to move backward, and then drive strut upwards to rotate, display installation frame is upwards overturn.Because cross bar is threaded on upset screw mandrel, therefore can realizes the self-locking of cross bar, make the liquid crystal display upwards reversed reliably upwards overturn and to locate; In addition, because upset screw mandrel has a larger speed reducing ratio when driving strut upwards to rotate, therefore, both the steady upset of liquid crystal display had been conducive to, the power of upset motor can be reduced again, and then be conducive to the volume reducing upset motor, be convenient to its installation in main table top.Particularly, when display overturns reset downwards, if be subject to the obstruction of foreign matter, display rolling-proof device makes upset motor shut down rapidly, thus avoids switching mechanism impaired, plays protective action to human body simultaneously.
As preferably, the end face of described strut near second rotating shaft one end is the semi-cylindrical coaxial with the second rotating shaft, described first rotating shaft is arranged near rims upside edge place, described dividing plate downside is respectively equipped with the guide rail parallel with overturning screw mandrel in the left and right sides, the two ends, left and right of described cross bar are respectively equipped with slide block, and slide block is being provided with near dividing plate side the U-shaped chute be connected with slide.
Because the first rotating shaft is arranged near rims upside edge place, therefore, when display installation frame drives liquid crystal display upwards to overturn, display installation frame can not produce with base plate interferes.And the end face of strut near second rotating shaft one end is the semi-cylindrical coaxial with the second rotating shaft, therefore, we can by the second rotating shaft as far as possible near base plate, and strut can not produce with base plate when rotating interferes, thus be conducive to increasing the distance between upset screw mandrel and the second rotating shaft, the moment of torsion produced when upset screw mandrel is worked increases, and then is conducive to the power and the appearance and size that reduce upset motor.Particularly, slide block is connected with slide by U-shaped chute, therefore just with its assembling.
As preferably, described display rolling-proof device comprises the mounting bar being arranged on display installation frame lower left side, lower right side and front downside, described mounting bar is provided with equally spacedly some first microswitches, described first microswitch is connected in parallel in the control circuit of described upset motor.
When liquid crystal display overturns reset downwards, if run into the foreign matter below it, foreign matter touches the first microswitch, and now namely the first microswitch sends triggering signal to control circuit, even if control circuit overturns motor breaking and stops action.
As preferably, described base is connected with table top by lowering or hoisting gear, described lowering or hoisting gear comprises the fixed head be flatly arranged in base, the top board being arranged on the portable plate above fixed head and being spaced apart and arranged in for loading floor above portable plate, fixed head is provided with vertical guide post and elevating screw, portable plate is slidably connected on the guide bar, portable plate is provided with rotationally the lifting swivel nut be threaded with elevating screw, portable plate is also installed with lifting motor, lifting motor drives lifting swivel nut to rotate by transmission mechanism, be connected by vertical support bar between top board with portable plate, the desktop decline rolling-proof device of lifting controllable motor is provided with in the downside of main table top.
When lifting motor drives lifting swivel nut to rotate forward by transmission mechanism, lifting swivel nut can rise along elevating screw, thus drives top board to rise by portable plate, and then makes table top automatically increase, to realize the automatic lifting of table top, be applicable to the user of different height.Particularly, when table top moves down reset, if table top is subject to the obstruction of downside foreign matter, desktop decline rolling-proof device makes lifting motor shut down rapidly, thus avoids lowering or hoisting gear impaired, plays protective action to human body simultaneously.
As preferably, described desktop decline rolling-proof device comprises the portable plate below fixed head and fixed head, fixed head is fixedly connected on the below of main table top by joint pin, the edge of described portable plate upwards bends inwards after bending vertically again, thus fixed head is enclosed in portable plate actively, be provided with some second microswitches at the lower surface of fixed head, described second microswitch is connected in parallel in the control circuit of described lifting motor.
When table top moves down, if run into the obstruction of foreign matter below it, foreign matter can promote portable plate moves and touches the second microswitch, and now namely the second microswitch sends triggering signal to control circuit, even if control circuit lifting motor open circuit and stop action.
As preferably, thus effectively can avoid the random operation of unrelated person.
As preferably, described middle control case is provided with the fingerprint that can control opening and closing motor and controls master switch, the bottom surface of described base is respectively equipped with locking universal wheel at four edges, the installing plate at least one locking universal wheel top is provided with connecting axle straight up, base is provided with lift span straight up in corresponding connecting axle position, connecting axle is axially connected in lift span slidably, stage clip is provided with between the upper end and the bottom surface of lift span of connecting axle, chassis outer side is flatly provided with the locking screw of through lift span in corresponding lift span position, the lock bolt of the connecting axle compressed in lift span is provided with in locking screw, the rear end that lock bolt exposes to locking screw is provided with rotary disk, the edge of rotary disk is provided with some at the equally distributed semicircular indentations of circumferencial direction.
Fingerprint controls the random operation that master switch can avoid unrelated person effectively, locking universal wheel is convenient to movement and the location at dais, when we loosen lock bolt by rotary disk, can be stretched out downwards in lift span under the effect of stage clip by the connecting axle of lock bolt locking, thus make whole locking universal wheels all with ground reliable contacts, now lock lock bolt again, the steady secure support at dais can be guaranteed, avoid the impact because ground injustice causes dais.
Therefore, the present invention has following beneficial effect: compact conformation, be convenient to accumulating, handling safety convenient, there is sufficient space to place other teaching aid equipment simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the structural representation that splicing table top is in opening.
Fig. 3 is the partial sectional view of table top.
Fig. 4 is a kind of structural representation of switching mechanism.
Fig. 5 is the syndeton schematic diagram of opening and closing motor and opening and closing screw mandrel.
Fig. 6 is a kind of structural representation of switching mechanism.
Fig. 7 is the sectional view of switching mechanism.
Fig. 8 is the structural representation of slide block and slide bar junction in switching mechanism.
Fig. 9 is a kind of structural representation of lowering or hoisting gear.
Figure 10 is the structural representation of desktop decline rolling-proof device.
Figure 11 is the syndeton schematic diagram of locking universal wheel and base.
Figure 12 is the structural representation of rotary disk.
In figure: 1, base 11, middle control case 12, lift span 13, locking screw 2, table top 21, main table top 211, display installing hole 22, splicing table top 221, table top main body 222, surrounding edge 223, flange 23, rectangular frame 24, slide bar 25, motor fixed rack 251, connecting plate 252, installing plate 253, connect via hole 26, screw mandrel sleeve pipe 27, opening and closing motor 28, opening and closing screw mandrel 281, bearing ring 29, opening and closing swivel nut 291, spacing preiection 3, liquid crystal display 4, control panel 50, base plate 51, display installation frame 511, dividing plate 512, frame 52, supporting base 521, first rotating shaft 53, strut 54, upset screw mandrel 55, upset motor 56, cross bar 561, slide block 562, U-shaped chute 57, guide rail 58, strut socket 581, second rotating shaft 60, fixed head 61, portable plate 62, top board 63, support bar 64, guide post 65, elevating screw 66, lifting swivel nut 67, , lifting motor 68, drive sprocket 69, driven sprocket 691, chain drive-belt 7, fingerprint control master switch 8, locking universal wheel 81, installing plate 82, connecting axle 83, stage clip 84, lock bolt 85, rotary disk 851, semicircular indentations 9, desktop decline rolling-proof device 91, joint pin 92, fixed head 93, portable plate.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention will be further described.
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of intelligent digital dais, comprise base 1, the table top 2 be arranged on base, in base trailing flank top is provided with, controls case 11, it should be noted that, direction in the present embodiment is for benchmark with the user at dais, namely close user side is rear side, is front side away from user side, and correspondingly defines left side and right side, wherein left and right directions is laterally, and fore-and-aft direction is longitudinally.For ease of the area of expanding table top, table top comprises one and to be connected with base and rectangular main table top 21 and cover the same rectangular splicing table top 22 in two, left and right of main table top symmetrically, the upper surface of main table top arranges liquid crystal display 3, control panel 4 for manipulating, splicing table top is formed by switching mechanism and main table top and is slidably connected, thus makes two splicing station masks have one to be stitched together and cover the closure state of main table top and one respectively to the opening being overlapped on main table-board to right or left both sides after the slippage of the left and right sides.In addition, as shown in Figure 3, splicing station face comprises the table top main body 221 of fitting with the upper surface of main table top, at the edge on the front side edge of table top main body of left side splicing table top, back side edge and limit, left side, there is the surrounding edge 222 bending vertically and extend to form downwards, analogously, the edge splicing the front side edge of the table top main body of table top, back side edge and right edge on right side has the surrounding edge bending vertically and extend to form downwards, that is, the exposed lateral side of each splicing table top all has surrounding edge, thus is conducive to improving intensity and aesthetics.In addition, before and after table top main body, the surrounding edge of side and the front and back side of main table top are fitted, and the lower edge of surrounding edge is also provided with the flange 223 flatly bent inwards, and splicing table top can be reliably socketed on main table top.
As shown in Figure 4, switching mechanism of the present invention comprises a rectangular frame 23 be arranged on the downside of main table top, the outside that two splicing table top downsides are separated from each other is installed with slide bar 24 and the motor fixed rack 25 of two transverse directions in front and back respectively, the slide bar of two splicing table tops relatively extends to the inside and is slidably connected with the left and right sides of rectangular frame respectively, certainly, we can arrange corresponding sliding sleeve on rectangular frame, slide bar is located in corresponding sliding sleeve, thus make slide bar and rectangular frame form good being slidably connected, simultaneously slide bar can form supporting role by the splicing table top after the slippage of the subtend left and right sides.In addition, sliding sleeve for supporting a slide bar above on rectangular frame can arrange two in the centre of rectangular frame and avris compartment of terrain, and the sliding sleeve of the centre of corresponding two splicing table tops can be arranged to one, thus be conducive to improving the stability supported, the splicing station mask after sliping off is made to have better rigidity, certainly, we need the length increasing corresponding slide bar, and in face of the splicing station of two, left and right, the slide bar in face answers front-back staggered to arrange.
As shown in Figure 5, motor fixed rack by fitting and being fixed in the splicing connecting plate 251 of table top downside and the installing plate 252 be integrally connected to vertically downward on connecting plate is formed, thus makes motor fixed rack L-shaped.Be fixedly connected with the screw mandrel sleeve pipe 26 laterally extended to the inside near the inner side at center, dais at installing plate, installing plate arranges at corresponding screw mandrel sleeve pipe place and connects via hole 253, be fixedly connected with an opening and closing motor 27 at the opposite side of installing plate, the motor shaft of opening and closing motor is connected with the opening and closing screw mandrel 28 be arranged on coaxially in screw mandrel sleeve pipe after connecting via hole.In addition, opening and closing screw mandrel has been threaded opening and closing swivel nut 29, the sidewall of screw mandrel sleeve pipe arranges and extends vertically and the chute 261 of through installing plate, the arranged outside of opening and closing swivel nut radially stretches out the spacing preiection 291 of chute, and spacing preiection stretches out in the locating hole of chute part screens on rectangular frame.During assembling, can first opening and closing swivel nut be threaded on opening and closing screw mandrel, and then the opening and closing screw mandrel connected with the motor shaft of opening and closing motor is loaded screw mandrel sleeve pipe in away from screw mandrel sleeve pipe side by connecting via hole from installing plate together with opening and closing swivel nut, the spacing preiection now on opening and closing swivel nut then can enter from the through chute to installing plate easily.When opening and closing screw mandrel is in place, opening and closing motor can be fixed on the installing plate of motor fixed rack.Then the spacing preiection stretching out chute can load in the locating hole of rectangular frame by we, and is fixedly attached to by the connecting plate of motor fixed rack on the downside of splicing table top, thus completes assembling easily.Be understandable that, the radial depth of installing plate upper hopper chute should be greater than the radial height of spacing preiection, thus guarantees that opening and closing swivel nut can be smoothly through the connection via hole of installing plate.When we need outwards to move splicing table top, manipulation by control panel makes opening and closing driven by motor opening and closing screw mandrel rotate forward, because opening and closing swivel nut is located, now opening and closing screw mandrel axially can move laterally under the effect of opening and closing swivel nut, thus drive splicing station to move towards outside by opening and closing motor, motor fixed rack, now the slide bar spliced on the downside of table top plays the support guide effect to splicing table top, guarantees that splicing table top steadily moves smoothly.Meanwhile, screw mandrel sleeve pipe is then moved together with opening and closing motor laterally by motor fixed rack, correspondingly, and spacing preiection then relative movement in the chute of screw mandrel sleeve pipe.Certainly, we also can arrange a bearing ring 281 at the end winding support of opening and closing screw mandrel, the lateral surface of bearing ring and the madial wall of screw mandrel sleeve pipe suitable, like this, opening and closing screw mandrel can be made to be supported reliably, and guaranteeing can successfully relative movement between opening and closing screw mandrel and screw mandrel sleeve pipe.
In order to ensure the safety of switching mechanism; we can arrange overcurrent protector in the loop of opening and closing motor; like this; when splicing table top and closing, if be subject to the obstruction of foreign matter, the electric current of opening and closing motor can rise rapidly and exceed its load current value 0.68A; when the electric current of opening and closing motor reaches the 1.2A of setting; overcurrent protector action disconnecting circuit makes opening and closing motor quit work, thus can effectively avoid switching mechanism impaired, plays protective action to human body simultaneously.
In order to improve the screen viewing angle of liquid crystal display, liquid crystal display of the present invention is rotationally connected by switching mechanism and main table top, thus makes liquid crystal display have the duty of the receiving state of a level and front side upwards tip tilt.For ease of the layout of switching mechanism, as shown in Figure 2, we need to arrange recessed display installing hole 211 at main table top upper surface, as Fig. 6, shown in Fig. 7, switching mechanism comprises the base plate 50 be flatly arranged on bottom display installing hole, be positioned at the display installation frame 51 of display installing hole, display installation frame comprises the dividing plate 511 of rectangle and is arranged on separator edge and the frame 512 crossing with divider upright, thus in display installation frame, form upper and lower two cavitys, liquid crystal display is positioned at the cavity on display installation frame top and is fixedly connected with dividing plate.Arrange supporting base 52 respectively at the rear portion of the base plate left and right sides, the rear side of display installation frame left and right sides frame is rotationally connected with the supporting base of the base plate left and right sides respectively by the first rotating shaft 521.In addition, the middle part on the downside of dividing plate is arranged to be arranged and rotating upset screw mandrel 54 along the longitudinal direction, is fixedly installed upset motor 55 on the downside of dividing plate simultaneously, and the motor shaft of upset motor is connected with upset screw mandrel, thus upset screw mandrel can be driven to rotate.Also laterally arranging on the downside of dividing plate can the cross bar 56 of slide anteroposterior, and the correspondence upset screw mandrel place, middle part of cross bar arranges corresponding swivel nut, and upset screw mandrel is formed with the swivel nut in the middle part of cross bar and is threaded.Like this, when overturning screw mandrel and rotating, cross bar can be driven to move forward and backward.In addition, dividing plate downside arranges the guide rail 57 parallel with overturning screw mandrel respectively in the left and right sides, and the two ends, left and right of cross bar then arrange slide block 561 respectively.As shown in Figure 8, slide block is arranging U-shaped chute 562 near dividing plate side, and the guide rail of the dividing plate left and right sides respectively screens forms and is slidably connected in the U-shaped chute of two ends, cross bar left and right slide block.Further, the middle part of the base plate left and right sides arranges strut socket 58 respectively, and the other end of two ends, the left and right hinged strut of difference 53, two struts of cross bar is hinged with the strut socket of corresponding side respectively by the second rotating shaft 581.Like this, two strut common support play cross bar, and cross bar then supports display installation frame.Because the opening of U-shaped chute is towards dividing plate side, therefore cross bar can not with dividing plate on the downside of guide rail be separated, simultaneously the U-shaped chute of opening just with its assembling.
When we need upwards overturning liquid crystal display time, make upset driven by motor overturn screw mandrel by control panel to rotate forward, thus drive cross bar to move side backward, namely strut now upwards overturns, thus by cross bar, display installation frame driving liquid crystal displays upwards tip tilt and enter duty.Otherwise, we make upset driven by motor upset screw mandrel rotate backward by control panel, thus driving cross bar to move side forward, namely strut now overturns reset downwards, thus is overturn downwards by cross bar, display installation frame driving liquid crystal displays and set level and enter receiving state.It should be noted that, the end face of strut near second rotating shaft one end should be arranged to the semi-cylindrical coaxial with the second rotating shaft, thus make the second rotating shaft can try one's best near base plate, and the first rotating shaft should be arranged near rims upside edge place, thus make first, second rotating shaft have enough spacing in the short transverse of framework, so that upset screw mandrel produces enough moments of torsion thus driving liquid crystal displays upwards overturns.
In order to ensure the safety of switching mechanism, we can arrange the display rolling-proof device that can control to overturn motor in the downside of display installation frame.Particularly, display rolling-proof device comprises the mounting bar being arranged on display installation frame lower left side, lower right side and front downside, every bar mounting bar is arranged equally spacedly 9 the first microswitches, and the first microswitch is connected in parallel in the control circuit of upset motor.Like this, when liquid crystal display overturns reset downwards, if run into the foreign matter below it, foreign matter touches the first microswitch, now namely the first microswitch sends triggering signal to the control circuit of upset motor, even if control circuit overturns motor breaking and stops action, thus guarantees the safety of switching mechanism, protective action is played to human body simultaneously.
In order to the user making the height at dais can be applicable to different height, base is connected with table top by lowering or hoisting gear, particularly, as shown in Figure 9, lowering or hoisting gear comprises the fixed head 60 being flatly arranged on rectangle in base, the top board 62 being arranged on portable plate 61 parallel with fixed head above fixed head and being spaced apart and arranged in for loading floor above portable plate, and the vertical support bar 63 being arranged on edge by four between top board with portable plate is connected.Four edges of fixed head are fixedly installed a guide post 64 straight up respectively, be fixedly installed an elevating screw 65 straight up respectively in the centre position of fixed head four sides simultaneously, portable plate arranges corresponding sliding sleeve in corresponding guide post position, thus portable plate is slidably connected on four guide posts.In addition, on portable plate, corresponding elevating screw position arranges the lifting swivel nut 66 be threaded with elevating screw rotationally, lifting motor 67 is also installed with on the upside of portable plate, the motor shaft that lifting motor is passed down through portable plate vertically arranges a drive sprocket 68, correspondingly, the outside of four lifting swivel nuts is arranged with driven sprocket 69, and chain drive-belt 691 winding is on four driven sprockets, and drive sprocket is then meshed with the outside of chain drive-belt.When lifting motor drives lifting swivel nut to rotate forward by drive sprocket, chain drive-belt and driven sprocket, lifting swivel nut can rise along elevating screw, thus drive top board to rise by portable plate, and then make table top automatically increase, otherwise, when lifting motor drives lifting swivel nut to rotate backward by drive sprocket, chain drive-belt and driven sprocket, lifting swivel nut can decline along elevating screw, thus drive top board to decline by portable plate, and then table top is declined automatically, to realize the automatic lifting of table top, be applicable to the user of different height.It should be noted that, we also can arrange one piece of stiffener above portable plate, and stiffener, portable plate link into an integrated entity by the support bar on top board, thus can effectively improve intensity and rigidity.
In order to ensure the safety of lowering or hoisting gear, we can arrange the desktop decline rolling-proof device 9 of lifting controllable motor in the downside of table top.Particularly, as shown in Figure 10, desktop decline rolling-proof device comprises and is fixedly connected on the fixed head 92 of the rectangle on the downside of main table top by joint pin 91 and is arranged on the portable plate 93 of rectangle below fixed head, the edge of portable plate upwards inside horizontal buckling again after bending vertically, thus fixed head is enclosed in portable plate actively, that is, activity is done and leave gap between fixed head.In addition, arrange 24 the second microswitches at the lower surface of fixed head, the second microswitch is connected in parallel in the control circuit of lifting motor.Like this, when table top moves down, if run into the obstruction of foreign matter below main table top, foreign matter can pushing set be connected on fixed head portable plate on move and touch the second microswitch, now namely the second microswitch sends triggering signal to the control circuit of lifting motor, even if control circuit lifting motor open circuit and stop action, thus guarantee the safety of lowering or hoisting gear, protective action is played to human body simultaneously.
Further, as shown in Figure 1, middle control case is also provided with the fingerprint that can control opening and closing motor and controls master switch 7, effectively can avoid the random operation of unrelated person.During use, first lecturer controls master switch by fingerprint and opens spliced table top, and the liquid crystal display now on main table top and control panel etc. expose, then namely by the various manipulation of control panel Venus, as made liquid crystal display upwards overturn, or make table top rising etc.
Finally, we also can arrange locking universal wheel 8 at four, the bottom surface of base edge respectively, the installing plate on three locking universal wheel tops is fixed by screws on the bottom surface of base, as Figure 11, shown in Figure 12, the installing plate 81 on another locking universal wheel top is arranged connecting axle 82 straight up, base arranges lift span 12 straight up in corresponding connecting axle position, connecting axle is axially plugged in lift span slidably, between the upper end and the bottom surface of lift span of connecting axle, stage clip 83 is set, chassis outer side flatly arranges the locking screw 15 of through lift span in corresponding lift span position simultaneously, locking screw internal thread connects the lock bolt 84 that compresses the connecting axle in lift span, the rear end that lock bolt exposes to locking screw is fixedly connected with rotary disk 85, the edge of rotary disk arranges six at the equally distributed semicircular indentations 851 of circumferencial direction.When dais is placed on ground by we, lock bolt is loosened by rotary disk, now three locking universal wheels be fixedly connected with base can form a supporting surface, what be connected with base sliding then automatically can move up under the effect of neutrality, or automatically stretch out downwards to touch ground under the effect of stage clip, then we tighten the while that lock bolt can making four and earth surface by rotary disk, make dais obtain reliable and stable support.
Be understandable that, the switching mechanism in the present embodiment, switching mechanism and lowering or hoisting gear all can arrange the travel switch of corresponding two extreme positions, thus can guarantee said mechanism autostop when reaching the limit of position.
Claims (10)
1. an intelligent digital dais, comprise the base that side is provided with middle control case, be arranged on the table top on base, it is characterized in that, described table top comprises a main table top and covers two, the left and right splicing table top of main table top, the upper surface of described main table top is provided with liquid crystal display and control panel, liquid crystal display is rotationally connected by switching mechanism and main table top, thus make liquid crystal display have the receiving state of a level and the duty of upwards tip tilt, described splicing table top is formed by switching mechanism and main table top and is slidably connected, thus make two splicing station masks have one to be stitched together and cover the closure state of main table top and one respectively to the opening being overlapped on main table-board to right or left both sides after the slippage of the left and right sides.
2. a kind of intelligent digital dais according to claim 1, it is characterized in that, described switching mechanism comprises the rectangular frame be arranged on the downside of main table top, the outside that two splicing table top downsides are separated from each other is installed with horizontal slide bar and motor fixed rack respectively, the slide bar of two splicing table tops extends to the inside and is slidably connected with the left and right sides of rectangular frame respectively, described motor fixed rack side is provided with the screw mandrel sleeve pipe laterally extended to the inside, the opening and closing swivel nut being provided with coaxial opening and closing screw mandrel in screw mandrel sleeve pipe and being threaded on opening and closing screw mandrel, the sidewall of screw mandrel sleeve pipe is provided with the chute extended vertically, the outside of opening and closing swivel nut is provided with the spacing preiection radially stretching out chute, spacing preiection stretches out in the locating hole of chute part screens on rectangular frame, the opposite side of motor fixed rack is provided with opening and closing motor, the motor shaft of described opening and closing motor is coaxially connected with opening and closing screw mandrel, overcurrent protector is provided with in the loop of opening and closing motor.
3. a kind of intelligent digital dais according to claim 2, it is characterized in that, described splicing station face comprises the table top main body of fitting with the upper surface of main table top and bends by the front side edge of table top main body, back side edge, outer side edges edge the surrounding edge extended to form vertically downwards, before and after table top main body, the surrounding edge of side and the front and back side of main table top are fitted, and the lower edge of described surrounding edge is also provided with the flange flatly bent inwards.
4. a kind of intelligent digital dais according to claim 2, it is characterized in that, described motor fixed rack by be fitted in splicing table top downside connecting plate and vertically downward the installing plate be integrally connected on connecting plate form, thus make motor fixed rack L-shaped, described screw mandrel sleeve pipe is fixedly connected on the side of installing plate, installing plate is provided with connection via hole at corresponding screw mandrel sleeve pipe place, opening and closing motor is fixedly connected on the opposite side of installing plate, the motor shaft of opening and closing motor is connected with opening and closing screw mandrel after connecting via hole, the through installing plate of described chute.
5. a kind of intelligent digital dais according to claim 1, it is characterized in that, described main table top upper surface is provided with display installing hole, described switching mechanism comprises the base plate be arranged on bottom display installing hole, be positioned at the display installation frame of display installing hole, display installation frame comprises the dividing plate of rectangle and is arranged on separator edge and the frame crossing with divider upright, thus in display installation frame, form upper and lower two cavitys, described liquid crystal display is positioned at the cavity on display installation frame top and is fixedly connected with dividing plate, the rear portion of the base plate left and right sides is respectively equipped with supporting base, the rear side of display installation frame left and right sides frame is rotationally connected respectively by the supporting base of the first rotating shaft and the base plate left and right sides, middle part on the downside of dividing plate is provided with to be arranged and rotating upset screw mandrel along the longitudinal direction, one motor shaft being fixedly installed on the upset motor on the downside of dividing plate is connected with upset screw mandrel, also laterally being provided with on the downside of dividing plate can the cross bar of slide anteroposterior, described upset screw mandrel is formed with the middle part of cross bar and is threaded, the middle part of the base plate left and right sides is respectively equipped with strut socket, the two ends, left and right of cross bar are hinged with strut respectively, the other end of two struts is hinged respectively by the strut socket of the second rotating shaft with corresponding side, the downside of described display installation frame is provided with the display rolling-proof device that can control to overturn motor.
6. a kind of intelligent digital dais according to claim 5, it is characterized in that, the end face of described strut near second rotating shaft one end is the semi-cylindrical coaxial with the second rotating shaft, described first rotating shaft is arranged near rims upside edge place, described dividing plate downside is respectively equipped with the guide rail parallel with overturning screw mandrel in the left and right sides, the two ends, left and right of described cross bar are respectively equipped with slide block, and slide block is being provided with near dividing plate side the U-shaped chute be connected with slide.
7. a kind of intelligent digital dais according to claim 5, it is characterized in that, described display rolling-proof device comprises the mounting bar being arranged on display installation frame lower left side, lower right side and front downside, described mounting bar is provided with equally spacedly some first microswitches, described first microswitch is connected in parallel in the control circuit of described upset motor.
8. a kind of intelligent digital dais according to claim 1, it is characterized in that, described base is connected with table top by lowering or hoisting gear, described lowering or hoisting gear comprises the fixed head be flatly arranged in base, the top board being arranged on the portable plate above fixed head and being spaced apart and arranged in for loading floor above portable plate, fixed head is provided with vertical guide post and elevating screw, portable plate is slidably connected on the guide bar, portable plate is provided with rotationally the lifting swivel nut be threaded with elevating screw, portable plate is also installed with lifting motor, lifting motor drives lifting swivel nut to rotate by transmission mechanism, be connected by vertical support bar between top board with portable plate, the desktop decline rolling-proof device of lifting controllable motor is provided with in the downside of main table top.
9. a kind of intelligent digital dais according to claim 8, it is characterized in that, described desktop decline rolling-proof device comprises the portable plate below fixed head and fixed head, fixed head is fixedly connected on the below of main table top by joint pin, the edge of described portable plate upwards bends inwards after bending vertically again, thus fixed head is enclosed in portable plate actively, be provided with some second microswitches at the lower surface of fixed head, described second microswitch is connected in parallel in the control circuit of described lifting motor.
10. a kind of intelligent digital dais according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, it is characterized in that, described middle control case is provided with the fingerprint that can control opening and closing motor and controls master switch, the bottom surface of described base is respectively equipped with locking universal wheel at four edges, the installing plate at least one locking universal wheel top is provided with connecting axle straight up, base is provided with lift span straight up at correspondence position, connecting axle is axially connected in lift span slidably, chassis outer side is flatly provided with the locking screw of through lift span in corresponding lift span position, the lock bolt of the connecting axle compressed in lift span is provided with in locking screw, the rear end that lock bolt exposes to locking screw is provided with rotary disk, the edge of rotary disk is provided with some at the equally distributed semicircular indentations of circumferencial direction.
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| CN105976647A (en) * | 2016-07-29 | 2016-09-28 | 安庆米锐智能科技有限公司 | Intelligent demonstration equipment special for teaching |
| CN106742590A (en) * | 2017-01-11 | 2017-05-31 | 梅木精密工业(珠海)有限公司 | A kind of packing case of mobile liftable unloading |
| CN106923505A (en) * | 2017-04-08 | 2017-07-07 | 闲客智能（深圳）科技有限公司 | A kind of intelligent residue storage frame |
| CN107093335A (en) * | 2017-06-21 | 2017-08-25 | 林海 | One kind upset instructional terminal |
| CN107752368A (en) * | 2017-11-02 | 2018-03-06 | 山东建筑大学 | The intelligent elevated dais of display screen before a kind of band platform |
| CN109008212A (en) * | 2018-09-04 | 2018-12-18 | 杭州席媒科技有限公司 | Electric turnover device |
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| CN112205747A (en) * | 2020-09-24 | 2021-01-12 | 安徽文香信息技术有限公司 | Liftable multimedia platform is used in wisdom teaching |
| CN112220205A (en) * | 2020-10-23 | 2021-01-15 | 合肥德纳达信息科技有限公司 | Hide formula wisdom podium of accomodating |
| CN112806735A (en) * | 2021-01-07 | 2021-05-18 | 江西光正金属设备集团有限公司 | Intelligent bookshelf convenient to fix |
| CN113160620A (en) * | 2021-04-27 | 2021-07-23 | 贵州轻工职业技术学院 | Teaching guiding device based on new media technology |
| CN113409633A (en) * | 2021-06-17 | 2021-09-17 | 江苏经贸职业技术学院 | Culture education teaching device capable of synchronously live broadcasting |
| CN114903280A (en) * | 2022-03-29 | 2022-08-16 | 乐山师范学院 | Multifunctional teacher desk with holographic projection and teaching method |
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| CN105976647B (en) * | 2016-07-29 | 2018-08-31 | 哈工大机器人集团（广州）知识产权投资控股有限公司哈尔滨分公司 | A kind of teaching special intelligent demonstration equipment |
| CN105976647A (en) * | 2016-07-29 | 2016-09-28 | 安庆米锐智能科技有限公司 | Intelligent demonstration equipment special for teaching |
| CN106742590A (en) * | 2017-01-11 | 2017-05-31 | 梅木精密工业(珠海)有限公司 | A kind of packing case of mobile liftable unloading |
| CN106923505A (en) * | 2017-04-08 | 2017-07-07 | 闲客智能（深圳）科技有限公司 | A kind of intelligent residue storage frame |
| CN107093335A (en) * | 2017-06-21 | 2017-08-25 | 林海 | One kind upset instructional terminal |
| CN107752368A (en) * | 2017-11-02 | 2018-03-06 | 山东建筑大学 | The intelligent elevated dais of display screen before a kind of band platform |
| CN109099271A (en) * | 2018-08-23 | 2018-12-28 | 广州志昂机电设备有限公司 | The ultra-thin display band asynchronous double lifting video display terminals of microphone |
| CN109008212A (en) * | 2018-09-04 | 2018-12-18 | 杭州席媒科技有限公司 | Electric turnover device |
| CN109008212B (en) * | 2018-09-04 | 2024-04-16 | 杭州席媒科技有限公司 | Electric turner |
| KR101943453B1 (en) * | 2018-10-02 | 2019-04-18 | 주식회사 대성엠앤씨 | Smart table apparatus with a display for combined sitting and stand-up purpose |
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| CN109463903A (en) * | 2018-11-12 | 2019-03-15 | 郑州辛西亚信息科技有限公司 | A kind of computer display screen storage device |
| CN109491313A (en) * | 2018-11-28 | 2019-03-19 | 天津七所精密机电技术有限公司 | A kind of electronic adjustment display control device in military visual angle |
| CN109393741A (en) * | 2018-12-07 | 2019-03-01 | 四川久舟科技有限公司 | A kind of informationization Electronic platform |
| CN109674209A (en) * | 2019-01-14 | 2019-04-26 | 淄博职业学院 | A kind of intelligent type computer educational aid |
| CN110097788B (en) * | 2019-05-27 | 2021-07-02 | 运城学院 | Mathematics teaching device and teaching method |
| CN110097788A (en) * | 2019-05-27 | 2019-08-06 | 运城学院 | A kind of mathematical teaching apparatus and teaching method |
| CN110269413A (en) * | 2019-07-16 | 2019-09-24 | 照彰实业（东莞）有限公司 | Intelligent control tower |
| CN110477609A (en) * | 2019-08-29 | 2019-11-22 | 合肥惠科金扬科技有限公司 | Flip displays device and tea table |
| CN112205747A (en) * | 2020-09-24 | 2021-01-12 | 安徽文香信息技术有限公司 | Liftable multimedia platform is used in wisdom teaching |
| CN112220205A (en) * | 2020-10-23 | 2021-01-15 | 合肥德纳达信息科技有限公司 | Hide formula wisdom podium of accomodating |
| CN112806735A (en) * | 2021-01-07 | 2021-05-18 | 江西光正金属设备集团有限公司 | Intelligent bookshelf convenient to fix |
| CN113160620A (en) * | 2021-04-27 | 2021-07-23 | 贵州轻工职业技术学院 | Teaching guiding device based on new media technology |
| CN113409633A (en) * | 2021-06-17 | 2021-09-17 | 江苏经贸职业技术学院 | Culture education teaching device capable of synchronously live broadcasting |
| CN114903280A (en) * | 2022-03-29 | 2022-08-16 | 乐山师范学院 | Multifunctional teacher desk with holographic projection and teaching method |
| CN114903280B (en) * | 2022-03-29 | 2023-03-10 | 乐山师范学院 | Multifunctional teacher desk with holographic projection and teaching method |
| CN116321887A (en) * | 2023-03-01 | 2023-06-23 | 梵智达科技(深圳)有限公司 | Power supply expansion device |
| CN116321887B (en) * | 2023-03-01 | 2023-10-20 | 梵智达科技(深圳)有限公司 | Power supply expansion device |
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Effective date of registration: 20161121 Address after: 201199 Minhang District Shanghai friends East Road, building A, building 4, building No. 89 Applicant after: Shanghai Zenkore Electronic Technology Co, Ltd. Address before: 200062 Putuo District, Zhongshan North Road, No. 3663, Applicant before: East China Normal University Applicant before: NINGBO HAIBO SCIENCE AND EDUCATION INSTRUMENT CO., LTD. |
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