CN102287605B - Automatic lifting equipment - Google Patents
Automatic lifting equipment Download PDFInfo
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- CN102287605B CN102287605B CN 201110209560 CN201110209560A CN102287605B CN 102287605 B CN102287605 B CN 102287605B CN 201110209560 CN201110209560 CN 201110209560 CN 201110209560 A CN201110209560 A CN 201110209560A CN 102287605 B CN102287605 B CN 102287605B
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Abstract
The invention relates to automatic lifting equipment. The automatic lifting equipment comprises a lifting device, wherein the lifting device comprises a lifting framework, a first worm gear and worm motor, a first lead screw, a first connecting piece, a tray and a tray bracket; and the lifting framework comprises a top plate, a pair of slide rails which is fixedly arranged on the two sides of thetop plate, and a first fixing piece. The first worm gear and worm motor is arranged on the top plate; the top end of the first lead screw passes through a worm gear and is fixed on the top plate; thebottom end of the first lead screw is fixed at the lower end of the first fixing piece; and the two ends of the first fixing piece are provided with a first limit switch and a second limit switch. The first connecting piece is sleeved on the first lead screw; and the two ends of the first connecting piece are fixed on the inner sides of the pair of slide rails. The tray is fixed on the tray bracket; and the tray bracket is fixed at the lower ends of the slide rails. By using the automatic lifting equipment, the lifting device can be controlled to accurately operate by an intelligent central control system; the automatic lifting equipment is safe, reliable and convenient to use; and due to the automatic lifting equipment, a ceiling where a projector is arranged is more attractive, the vibration is low, and dust can be prevented.
Description
Technical field
The present invention relates to a kind of jacking equipment, specifically, relate to a kind of automatic lifting device, be mainly used in projector, ring under the specific environment is scratched sound system, various lamp source, and various video probe instrument and is essential and is installed in the ceiling board top and needs the hidden automatic lifting device of lifting.
Background technique
Projector requires than higher environment and maintenance.From mechanical aspects, need shockproof, because macroseism can cause the displacement of liquid crystal, the phenomenon that the RGB color does not overlap appears in the convergence of three LCD during the influence projection, and the lens in the optical system, reflector also can produce distortion or damage, and influences the image projection effect, and zoom lens can make rail damage under impacting, cause camera lens stuck, even camera lens break and can't use.From the optical system aspect, note the dustproof and ventilation and heat of Environmental Conditions.The polysilicon LCD plate that we use at present generally has only 1.3 inches, have in addition have only 0.9 inch, and resolution has reached 1024X768 or 800X600, that is to say that each pixel has only 0.02mm, dust granule enough stops it.And since the LCD of projector plate fully dispel the heat generally have special fan with the flow of per minute tens litres of air to its cooling of blowing, high velocity air also might be carried small dust secretly through behind the dust filter net, they rub generation static mutually and are adsorbed in the radiation system, and this will exert an influence to projected picture.
In the prior art, when using projector, projector is to be placed on the desk usually, connects power supply and computer, digital device etc., and shadow is incident upon on the curtain, be convenient for people to needs such as meeting, speech, commercial affairs.But, thisly projector is directly placed on the table mode, vibrations easily; And, there is the people before table, to pass by, can influence the picture on the curtain, and also not attractive in appearance, also occupation of land side.
So the someone has designed a kind of scheme, at ceiling board the furred ceiling support is set, projector is placed on the furred ceiling support, solved vibrations and may be because people walk about and influence the problem of picture really like this; But also there is defective in this technological scheme: it is complete 1) to feel unwell, and installs and fixes unreally, easily loosening as support, very falls together with projector, causes the accident; 2) the furred ceiling support is set on the ceiling board, also influences attractive in appearance to a certain extent; 3) be unfavorable for preventing dust; Can not satisfy the quality life requirement that people improve day by day.
Therefore, need a kind of jacking equipment of exploitation badly, projector is placed in the jacking equipment, when needing to use, utilize jacking equipment projector to be lowered into the position of suitable projection; When not needing to use projector and jacking equipment are packed up to the furred ceiling upper end, the translation cover plate not only can effectively utilize the space with the working hole closure, and is more attractive in appearance, and, can prevent that projector from exposing ash, influence is used.
Summary of the invention
The purpose of this invention is to provide a kind of automatic lifting device, this jacking equipment is installed on the ceiling board, and the stealth when being convenient to projector and not using is when needs use projector, control this jacking equipment by remote controller or hand switch and move downward, projector is placed into suitable position; When not needing to use, control this jacking equipment and move upward, projector is taken in, both saved the space, visually attractive in appearance, and also safety is attractive in appearance to a certain extent, and dustproof, prevent vibrations, delay working life.
In order to achieve the above object, the invention provides a kind of automatic lifting device, this automatic lifting device comprises: lowering or hoisting gear.
Described lowering or hoisting gear comprises: lifting frame, the first turbine and worm motor, first screw mandrel, first link, pallet and tray supporter.
Described lifting frame comprises:
Top board;
Be fixedly installed on a pair of slide rail of top board both sides, this slide rail is symmetrical arranged, be parallel to each other between the slide rail, and vertical with top board; And,
Be fixedly installed on top board middle part and first fixed block vertical with top board, its upper end is fixed on the top board, and the upper end of this first fixed block also is provided with first limit switch, and the lower end of this first fixed block is provided with second limit switch;
Described turbine and worm motor is arranged on the top board, is positioned at lifting frame, and wherein, the gear of turbine and worm screw is vertical setting;
Described first screw mandrel is positioned at the center of top board, and arrange vertical with top board, and turbine is passed on the top of this first screw mandrel, and is fixed on the top board by bearing support, and the bottom of this first screw mandrel is fixed on the lower end of first fixed block by bearing support;
Described first link is set on first screw mandrel, and this first link is parallel with top board, and the two ends of this first link are separately fixed at the inboard of a pair of slide rail;
Described pallet is fixed on the tray supporter, and this tray supporter is fixedly connected on the inboard, lower end of described slide rail.
Above-mentioned automatic lifting device, wherein, this automatic lifting device comprises: intelligent central control system, this intelligence central control system adopt communications protocol or the dry contact signal are provided by the electronic control plate, realize being connected of intelligent central control system and lowering or hoisting gear.
Above-mentioned automatic lifting device, wherein, described automatic lifting device also comprises hatch cover plate shifter, and this hatch cover plate shifter comprises:
The second turbine and worm motor;
Second screw mandrel, the two ends of this second screw mandrel are separately fixed on the screw mandrel fixed support, the support bracket fastened end of screw mandrel arranges two baffle plates in parallel, also be respectively arranged with the 3rd limit switch and the 4th limit switch at the place, two end part near second screw mandrel on this screw mandrel fixed support, this second screw mandrel and top board be arranged in parallel;
Be arranged on both sides, the second screw mandrel side and a secondary guide rail parallel with second screw mandrel;
The screw mandrel link, this screw mandrel link is provided with through hole, and this screw mandrel link is set on second screw mandrel by through hole, and fixedly connected with connection assist in the bottom of this screw mandrel link, and the two ends of this connection assist are fixed on the movable part of described guide rail;
Symmetry is fixed on two parallelogram movable frames on the described connection assist, this movable frame comprises the top parallel edges that flexibly connects by bolt, two parallel hypotenuses and bottom parallel edges, and these two top parallel edges are fixedly connected on the both sides of described connection assist respectively;
Be fixedly connected on the hatch cover plate on the parallel edges of described bottom; And
Lever, an end of this lever are movably connected on the hypotenuse of parallelogram, and the middle part of this lever is movably connected on the top parallel edges of parallelogram, and the other end of lever is provided with rubber roll.
Above-mentioned automatic lifting device, wherein, this automatic lifting device also comprises: intelligent central control system, and this intelligence central control system is by the electronic control plate, adopt communications protocol or the dry contact signal is provided, realize being connected of intelligent central control system and lowering or hoisting gear and hatch cover plate shifter.
Above-mentioned automatic lifting device, wherein, also be provided with the 3rd fixed block in the middle of the parallelogram movable frame, the two ends of the 3rd fixed block are separately fixed on the mid point of two parallel hypotenuses of movable frame, be used for reinforcing, to keep the firm, parallel of two hypotenuses.
Above-mentioned automatic lifting device, wherein, the bottom parallel edges of described movable frame is fixedlyed connected by sheetmetal is auxiliary with the hatch cover plate.
Above-mentioned automatic lifting device, wherein, described slide rail is three joint slide rails, wherein, described first link is fixedly connected on the 3rd joint slide rail inner top side of this three joints slide rail.
Above-mentioned automatic lifting device, wherein, described lifting frame also comprises: be arranged on second fixed block of three joint slide rail lower ends, the two ends of this second fixed block are fixedly connected on the outermost lower end of the first segment slide rail of three joint slide rails, its middle part and the first fixed block vertical fixing.
Above-mentioned automatic lifting device, wherein, described pallet comprises integrated bottom surface and bi-side, wherein, bottom surface and lateral vertical, projector to be installed be used for to be placed in the bottom surface, and bi-side are respectively arranged with draw-in groove mouth and fixing with " n " sections bar, is used for adapting to fixing according to the projector of different model; The bottom center of described pallet also is provided with fixed hole, is used for fixedly connected pallet and tray supporter, and the both sides of this fixed hole are provided with curve bath, is used for regulating the angle of projector and curtain.
Above-mentioned automatic lifting device, wherein, described tray supporter is fixedly connected on the most inboard the 3rd joint slide rail in slide rail bottom, the bottom surface of this tray supporter is parallel with pallet, fixedlys connected with the bi-side of the most inboard the 3rd joint slide rail lower end and the pallet of slide rail respectively by angle adjustment plate in the side of this tray supporter; The position that is connected and fixed pallet on the side of this tray supporter is provided with curve bath, for fixing after the downward tilt of regulating tray supporter.
Automatic lifting device of the present invention utilizes limit switch control, can stable drive projector swimmingly moves up and down, shrink freely: when needs use projector, open the automatic lifting device switch, this lowering or hoisting gear of the first turbine and worm driven by motor glides, and projector is placed in place, and first link touches second limit switch, close the first turbine and worm motor, projector position is fixed; When not needing to use projector, close the automatic lifting device switch, the first turbine and worm motor counterrotating, the drive lowering or hoisting gear rises, when first link touches first limit switch, this first limit switch cuts out the first turbine and worm motor, packs up projector, reaches attractive in appearance and the dust-tight purpose.
In the preferred technological scheme, automatic lifting device of the present invention also comprises the hatch cover plate shifter that is connected with above-mentioned intelligent central control system circuit, make two independent sectors (lowering or hoisting gear and hatch cover plate shifter), be installed on the same fixed support, by spacing control connection, operation links up: when needs use projector, open the automatic lifting device switch, the second turbine and worm driven by motor hatch cover plate shifter, remove the hatch cover plate, open hatch, the 4th limit switch cuts out the second turbine and worm motor, and is communicated with the first turbine and worm motor simultaneously, slide into the appropriate location under the control lowering or hoisting gear, first link touches second limit switch, closes the first turbine and worm motor, and projector position is fixed; When not needing to use projector, close the automatic lifting device switch, the first turbine and worm motor counterrotating, the control lowering or hoisting gear rises, when first link touches first limit switch, first limit switch cuts out the first turbine and worm motor, and open the second turbine and worm motor simultaneously, control hatch cover plate shifter parallel sliding, the hatch cover plate is moved on the hatch, and the 3rd limit switch cuts out the second turbine and worm motor, and the hatch cover plate covers hatch fully, make ceiling board look more attractive in appearance, also can further prevent dust.
Another technological scheme of the present invention also comprises the intelligent central control system that passes through electronic control plate circuit communication with described automatic lifting device and hatch cover plate shifter, this intelligence central control system adopts communications protocol or the dry contact signal is provided, realize being connected of intelligent central control system and lowering or hoisting gear and hatch cover plate shifter, can observe and control the running state of automatic lifting device by this intelligence central control system easily.
Therefore, automatic lifting device provided by the invention, need hang the stealth of taking in of instrument for projector or other, motion stabilization is smooth gently, can be shockproof, when not using, can it be packed up by this automatic lifting device, safe and reliable, and make ceiling board seem more attractive in appearance, can also reach the dust-tight effect.
Description of drawings
Fig. 1 is the plan view of the lowering or hoisting gear 100 of a kind of automatic lifting device of the present invention.
Fig. 2 is the plan view of the hatch cover plate shifter 200 of a kind of automatic lifting device of the present invention.
Fig. 3 be a kind of automatic lifting device of the present invention when hatch cover plate complete closed hatch, the schematic representation of lever and movable frame.
Fig. 4 for a kind of automatic lifting device of the present invention when the hatch cover plate is opened hatch fully, the schematic representation of lever and movable frame.
Fig. 5 the position of lowering or hoisting gear and hatch cover plate shifter concerns schematic representation for a kind of embodiment of the present invention when projector is taken in.
Embodiment
Below in conjunction with accompanying drawing technological scheme of the present invention is described further.
One embodiment of the present of invention provide a kind of automatic lifting device for projector, and it comprises: lowering or hoisting gear 100 and the intelligent central control system that is connected with these lowering or hoisting gear 100 circuit; Described intelligent central control system by the electronic control plate, adopts communications protocol and the dry contact signal is provided, and realizes being connected of intelligent central control system and lowering or hoisting gear 100; Can making things convenient for accurately by intelligent central control system, the operate lifting device drives projector smooth motion up and down.
As shown in Figure 1, lowering or hoisting gear 100 of the present invention comprises: lifting frame, the first turbine and worm motor 120, first screw mandrel 130, first link 140, pallet 150 and tray supporter 160.
Described lifting frame comprises: the top board 111 parallel with horizontal plane, this lowering or hoisting gear 100 is by this top board 111 and the Steel Support top fixed installation that is arranged on furred ceiling.
Described lifting frame also comprises: a pair of slide rail 112 that is fixedly installed on top board 111 both sides, these slide rail 112 preferred three joint trough of belt slide rails, to prolong the lowering position of this lowering or hoisting gear 100, and move more firm, this is symmetrical arranged slide rail 112, be parallel to each other between the slide rail, and vertical with top board 111; To be connected more firmly between top board 111 and the slide rail 112 in order making, can to select trapezoidal plate as connection assist.
Described lifting frame also comprises: be fixedly installed on top board 111 middle parts and first fixed block 113 vertical with top board 111, this first fixed block 113 is the thin plate of the vertical crimping in two ends, the upper end of this first fixed block 113 is fixed on the top board 111, the upper end of this first fixed block 113 also is provided with first limit switch 115, on first link is parallel, move on to the screw mandrel top, can touch first limit switch, then first limit switch cuts out the first turbine and worm motor, makes it out of service.
In the preferred technological scheme, in order to keep the parallel of slide rail 112 and further to fix first fixed block 113, auxiliary the firm of lowering or hoisting gear of keeping, avoid first fixed block 113 to seesaw, the stability that lowering or hoisting gear slides when guaranteeing the projector lifting, described lifting frame can also comprise: second fixed block 114 that is arranged on three joint slide rail lower ends, this second fixed block 114 is thin plate, its two ends are fixedly connected on the outermost lower end of the first segment slide rail of three joint slide rails, and, its middle part and first fixed block, 113 vertical fixing.
Described turbine and worm motor 120 is arranged on the top board 111, is positioned at lifting frame, wherein, the gear of turbine and worm screw is vertical setting, play the change direction, and increase the effect of power, motor 120 is by rotational velocity and the direction of turbine and worm control screw mandrel 130.
Described first screw mandrel 130 is positioned at the center of top board 111, and with top board 111 vertical settings, that is to say that it is inboard and in parallel that this first screw mandrel 130 is positioned at first link 113.Turbine is passed on the top of this first screw mandrel 130, and be fixed on the top board 111 by bearing support, the bottom of this first screw mandrel 130 is fixed on the thin plate of first fixed block, 113 lower ends by bearing support, also be provided with second limit switch 116 in these first fixed block, 113 lower ends, these second limit switch, 116 positions are higher than its contiguous bearing support, when first link 113 is parallel when moving down into the bottom of first screw mandrel 130, can touch this second limit switch 116, then second limit switch cuts out the first turbine and worm motor 120, makes lowering or hoisting gear rest on this position.
Described first link 140 is set on first screw mandrel 130, this first link 140 is parallel with top board 111, the two ends of this first link 140 are separately fixed at the most inboard the 3rd joint slide rail upper end of a pair of slide rail 112, driving this first link 140 when 130 rotations of first screw mandrel slides up and down, be provided with through hole in this first link 140, be provided with the screw thread corresponding with first screw mandrel 130 in this through hole, be set on first screw mandrel 130, it adopts copper material, with the power of reducing friction, increase the service life.The center unanimity of described first screw mandrel 130, first link 140 and a pair of slide rail 112 is located on the same line, to guarantee the smoothness run of lowering or hoisting gear.
Described pallet 150 is fixed on the tray supporter 160, and this tray supporter 160 is fixedly connected on the inboard of the 3rd joint slide rail lower end of described slide rail 112.
Described pallet 150 comprises integrated bottom surface and bi-side, wherein, bottom surface and lateral vertical, projector be used for to be placed in the bottom surface, and bi-side are respectively arranged with draw-in groove mouth and fixing with " n " sections bar, are used for adapting to fixing according to the projector of different model.The bottom center of this pallet 150 is provided with fixed hole, by this fixed hole can be fixedly connected pallet 150 and tray supporter 160, the both sides of this fixed hole are provided with curve bath, fixing behind the position of adjustment tray supporter 160 about being used for conveniently, so that projector can place in place, to adapt to curtain.More preferably, between the bottom surface of the bottom surface of pallet 150 and tray supporter 160, packing ring is set, to reduce vibrations, friction.
Described tray supporter 160 is fixedly connected on the most inboard the 3rd joint slide rail in slide rail 112 bottoms, and this tray supporter 160 comprises: the support bottom surface parallel with pallet 150 and with two sides at an angle, support bottom surface.This support bottom surface is sitting at the below of pallet 150 bottom surfaces, to hold pallet 150.This tray supporter 160 is one-body molded, fixedlys connected with the most inboard the 3rd joint slide rail inside lower end and the pallet side of slide rail 112 respectively by angle adjustment plate in the side of this tray supporter.The end of the 3rd joint slide rail that the lateral ends of this tray supporter and slide rail 112 are the most inboard is fixed, and the position of fixed tray 150 is provided with curve bath on the side of this tray supporter, is used for regulating fixing after the downward tilt of tray supporter 160.
In the preferred technological scheme of the present invention, automatic lifting device also further comprises: the hatch cover plate shifter 200 that is connected with above-mentioned intelligent central control system circuit.As shown in Figure 2, this hatch cover plate shifter 200 comprises:
The second turbine and worm motor 210;
Be arranged on the both sides of second screw mandrel, 220 belows and a secondary guide rail 230 parallel with second screw mandrel 220, the two ends of this guide rail 230 also are separately fixed on the screw mandrel fixed support 221;
Screw mandrel link 240 adopts copper material, and this screw mandrel link 240 is inverted T shape, and its top is provided with through hole, is provided with the screw thread corresponding with second screw mandrel 220 in this through hole, and screw mandrel link 240 is set on second screw mandrel 220 by this through hole; The bottom of this screw mandrel link 240 is fixedly installed on the auxiliary connecting plate 241; Should assist the both sides of connecting plate 241 to be fixedly installed on the movable part of guide rail 230; Like this, when second turbine and worm 210 rotates, drive second screw mandrel 220 and rotate, drive 240 horizontal slips of screw mandrel link, thereby make auxiliary connecting plate 241 parallel sliding in guide rail 230;
Symmetry is fixedly installed on two parallelogram movable frames 250 of described auxiliary connecting plate 241 both sides, this movable frame 250 comprises top parallel edges 251, two parallel hypotenuses 252 and bottom parallel edges 253, flexibly connect by bolt, this top parallel edges 251 is fixedlyed connected with auxiliary connecting plate 241;
Be fixedly connected on the hatch cover plate 260 on the bottom parallel edges 253 of parallelogram movable frame 250; This hatch cover plate 260 adopts gypsum, mineral wool etc. to make with the furred ceiling same material, with the conformity of assurance ceiling board furred ceiling, thereby reaches purpose attractive in appearance; And
Further, the two ends that also are provided with the 3rd fixed block 254, the three fixed blocks 251 in the middle of described parallelogram movable frame 250 are separately fixed on two parallel hypotenuses 252 of movable frame 250, are used for keeping the parallel of two hypotenuses.
Preferably, the bottom parallel edges 253 of this parallelogram movable frame 250 is assisted by sheetmetal 261 with hatch cover plate 260 and is fixedlyed connected.
Linking up automatically between the automatic lifting device of the present invention, twice machinery action, finish by limit switch, but this limit switch selector tool is spacing, electronic limit or magnetic are spacing.
When being hatch cover plate complete closed hatch as Fig. 3, the schematic representation of lever and movable frame; When needs use projector, manual or Remote Control Automatic jacking equipment switch, move the second turbine and worm motor earlier, driving second screw mandrel rotates, make screw mandrel link parallel sliding left in guide rail, drive movable frame and move, thereby the rubber roll that drives lever moves at the support bracket fastened baffle plate of screw mandrel, make lever connect an end perk of movable frame, drive on the hatch cover plate and lift; Then, when lever disengaging baffle plate, the screw mandrel link drives the hatch cover plate to left, and when the position that moves to setting, namely hatch is opened fully, and the position of lever and movable frame as shown in Figure 4; At this moment, the screw mandrel link touches the 4th limit switch, the 4th limit switch cuts out the second turbine and worm motor, and is communicated with the first turbine and worm motor simultaneously, drives first screw mandrel and rotates, make the downward smooth motion of the link of winning, thereby the pallet that drive is placed with projector is along with slide rail extends downwards, and up to appointed positions, first link touches second limit switch, second limit switch cuts out the first turbine and worm motor, makes projector be fixed on specified position.
When not needing to use projector, manual or Remote Control Automatic jacking equipment switch, be communicated with the first turbine and worm motor and make its counterrotating, make the screw mandrel counterrotating of winning, driving first link upwards slides, thereby the three joint slide rails that will prolong are packed up, make the pallet that is placed with projector rise to specified position, first link touches first limit switch, this first limit switch cuts out the first turbine and worm motor, and be communicated with the second turbine and worm motor simultaneously, make second screw mandrel rotate, drive the hatch cover plate to right translation, when moving to the end, the position relation of lowering or hoisting gear and hatch cover plate shifter as shown in Figure 5, at this moment, lever is during by the support bracket fastened baffle plate of upper screw rod, rubber roll slides at baffle plate, an end that makes lever connect movable frame presses down, and drives the hatch cover plate and descends, and covers hatch, make ceiling board seem more attractive in appearance, at this moment, the screw mandrel link touches the 3rd limit switch that is arranged on the fixed support, and the 3rd limit switch stops the operation of the second turbine and worm motor.A complete mechanism is formed in twice mechanical transmission continuous action of jacking equipment of the present invention, is fixed in rational position with a Steel Support, and to save the space, framework can firmly be fixed in various furred ceiling simultaneously, can use for a long time, and is safe and reliable.
Twice interlock mechanical device of technological scheme of the present invention (translation hatch cover plate and lowering or hoisting gear), power adopts stepping and synchronous machine, make control system more perfect, available intelligent central control system connects control (showing running state and degree), simultaneously, can pass through hand switch, infrared, Wireless remote control operation control automatic lifting device switch of the present invention and suspend arbitrarily.Automatic lifting device provided by the invention is widely used, and surround sound system, various lamp source, the various video probe instrument and under suitable projector, the specific environment is essential and is installed in the ceiling board top and needs the hidden equipment of lifting.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. automatic lifting device, it is characterized in that, this automatic lifting device comprises lowering or hoisting gear (100), intelligent central control system, and, with the hatch cover plate shifter (200) that this intelligence central control system circuit is connected, this lowering or hoisting gear (100) comprises: lifting frame, the first worm and gear motor (120), first screw mandrel (130), first link (140), pallet (150) and tray supporter (160);
Described lifting frame comprises:
Top board (111);
Be fixedly installed on a pair of slide rail (112) of top board (111) both sides, this slide rail (112) is symmetrical arranged, be parallel to each other between the slide rail, and vertical with top board (111); And,
Be fixedly installed on top board (111) middle part and first fixed block (113) vertical with top board (111), its upper end is fixed on the top board (111), the upper end of this first fixed block (113) also is provided with first limit switch (115), and the lower end of this first fixed block (113) is provided with second limit switch (116);
Described worm and gear motor (120) is arranged on the top board (111), is positioned at lifting frame, and wherein, the gear of worm gear and worm screw is vertical setting;
Described first screw mandrel (130) is positioned at the center of top board (111), and with the vertical setting of top board (111), worm gear is passed on the top of this first screw mandrel (130), and be fixed on the top board (111) by bearing support, the bottom of this first screw mandrel (130) is fixed on the lower end of first fixed block (113) by bearing support;
Described first link (140) is set on first screw mandrel (130), and this first link (140) is parallel with top board (111), and the two ends of this first link (140) are separately fixed at the inboard of a pair of slide rail (112);
Described pallet (150) is fixed on the tray supporter (160), and this tray supporter (160) is fixedly connected on the inboard, lower end of described slide rail (112);
Described hatch cover plate shifter (200) comprises:
The second worm and gear motor (210);
Second screw mandrel (220), the two ends of this second screw mandrel (220) are separately fixed on the screw mandrel fixed support (221), one end of screw mandrel fixed support (221) arranges two baffle plates in parallel (222), this screw mandrel fixed support (221) is gone up at the place, two end part near second screw mandrel and also is respectively arranged with the 3rd limit switch (223) and the 4th limit switch (224), and this second screw mandrel (220) be arranged in parallel with top board (111);
Be arranged on second screw mandrel (220) both sides, below and a secondary guide rail (230) parallel with second screw mandrel (220);
Screw mandrel link (240), this screw mandrel link (240) is provided with through hole, this screw mandrel link (240) is set on second screw mandrel (220) by through hole, fixedly connected with connection assist (241) in the bottom of this screw mandrel link (240), the two ends of this connection assist (241) are fixed on the movable part of described guide rail (230);
Symmetry is fixed on two the parallelogram movable frames (250) on the described connection assist (241), this movable frame (250) comprises top parallel edges (251), two parallel hypotenuses (252) and the bottom parallel edges (253) that flexibly connects by bolt, and these two top parallel edges (251) are fixedly connected on the both sides of described connection assist (241) respectively;
Be fixedly connected on the hatch cover plate (260) on the described bottom parallel edges (253); And
Lever (270), one end of this lever (270) is movably connected on the hypotenuse (252) of parallelogram, the middle part of this lever (270) is movably connected on the top parallel edges (251) of parallelogram, and the other end of lever (270) is provided with rubber roll (271);
Described intelligent central control system adopts stepper motor or synchronous machine and electronic control plate, by communications protocol and the dry contact signal is provided, realizes being connected of intelligent central control system and lowering or hoisting gear (100) and hatch cover plate shifter (200); When needs use projector, open the automatic lifting device switch, the second worm and gear driven by motor hatch cover plate shifter is removed the hatch cover plate, opens hatch, the 4th limit switch cuts out the second worm and gear motor, and be communicated with the first worm and gear motor simultaneously, and sliding into correct position under the control lowering or hoisting gear, first link touches second limit switch, close the first worm and gear motor, projector position is fixed; When not needing to use projector, close the automatic lifting device switch, the first worm and gear motor counterrotating, the control lowering or hoisting gear rises, when first link touches first limit switch, first limit switch cuts out the first worm and gear motor, open the second worm and gear motor simultaneously, control hatch cover plate shifter parallel sliding moves to the hatch cover plate on the hatch, the 3rd limit switch cuts out the second worm and gear motor, and the hatch cover plate covers hatch fully.
2. automatic lifting device as claimed in claim 1, it is characterized in that, in the middle of parallelogram movable frame (250), also be provided with the 3rd fixed block (254), the two ends of the 3rd fixed block (254) are separately fixed on the mid point of parallel two hypotenuses (252) of movable frame (250), be used for reinforcing, to keep the firm, parallel of two hypotenuses.
3. automatic lifting device as claimed in claim 2 is characterized in that, the bottom parallel edges (253) of described movable frame is fixedlyed connected by sheetmetal (261) is auxiliary with hatch cover plate (260).
4. automatic lifting device as claimed in claim 1 is characterized in that, described slide rail (112) is three joint slide rails, and wherein, described first link (140) is fixedly connected on the 3rd joint slide rail inner top side of this three joints slide rail.
5. automatic lifting device as claimed in claim 4, it is characterized in that, described lifting frame also comprises: second fixed block (114) that is arranged on three joint slide rail lower ends, the two ends of this second fixed block (114) are fixedly connected on the outermost of the first segment slide rail of three joint slide rails, its middle part and first fixed block (113) vertical fixing.
6. automatic lifting device as claimed in claim 5, it is characterized in that, described pallet (150) comprises integrated bottom surface and bi-side, wherein, bottom surface and lateral vertical, projector to be installed be used for to be placed in the bottom surface, and bi-side are respectively arranged with draw-in groove mouth and fixing with " n " sections bar, is used for adapting to fixing according to the projector of different model; The bottom center of described pallet (150) also is provided with fixed hole, is used for fixedly connected pallet (150) and tray supporter (160), and the both sides of this fixed hole are provided with curve bath, is used for regulating the angle of projector and curtain.
7. automatic lifting device as claimed in claim 6, it is characterized in that, described tray supporter (160) is fixedly connected on the most inboard the 3rd joint slide rail in slide rail (112) bottom, the bottom surface of this tray supporter (160) is parallel with pallet (150), fixedlys connected with the bi-side of the most inboard the 3rd joint slide rail and the pallet of slide rail (112) respectively by angle adjustment plate in the side of this tray supporter; The position that is connected and fixed pallet (150) on the side of this tray supporter is provided with curve bath, for fixing after the downward tilt of regulating tray supporter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110209560 CN102287605B (en) | 2011-07-22 | 2011-07-22 | Automatic lifting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110209560 CN102287605B (en) | 2011-07-22 | 2011-07-22 | Automatic lifting equipment |
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| CN102287605B true CN102287605B (en) | 2013-10-02 |
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