CN201392447Y - Electric ground lifting projection screen with opening-closing case body - Google Patents
Electric ground lifting projection screen with opening-closing case body Download PDFInfo
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- CN201392447Y CN201392447Y CN 200920052645 CN200920052645U CN201392447Y CN 201392447 Y CN201392447 Y CN 201392447Y CN 200920052645 CN200920052645 CN 200920052645 CN 200920052645 U CN200920052645 U CN 200920052645U CN 201392447 Y CN201392447 Y CN 201392447Y
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Abstract
The utility model provides an electric ground lifting projection screen with an opening-closing case body, which belongs to the field of a screen device or equipment for showing or watching. The electric ground lifting projection screen is composed of the case body, a case body opening-closing cover, a curtain screen lifting rod, an articulating seat, a turning pipe and a motor. The motor is connected with the turning pipe by a connecting sleeve, the lower end of a curtain screen is wound on the turning pipe, the upper end of the curtain screen is fixedly arranged on the curtain screen lifting rod, a folding type supporting rod is connected on the curtain screen lifting rod in a pivoting manner, an opening is arranged on the case body, the case body opening-closing cover is articulated at one edge in the length direction, the case body is provided with a push rod mechanism which is composed of a synchronous motor and a push rod, an output shaft of the synchronous motor is connected with the push rod, one end of the push rod is connected on the opening-closing cover in a pivoting manner, and the other end of the push rod is fixed on the output shaft of the synchronous motor. The electric ground lifting projection screen adopts simple structure, is simple as well as convenient for operation, and does not need installation.
Description
Technical field
The electronic seat ground lifting of a kind of folding casing of the present invention projection screen belongs to projection or watches the screen apparatus or the apparatus field of usefulness, particularly relates to a kind of electronic seat ground lifting projection screen.
Background technology
The basic function of projection screen is the image of reflection from projector, in such screen, is installed in usually on ceiling or the wall, and need carries out complex installation.A kind ofly can carry easily with projector, the packaged type screen apparatus arises at the historic moment.Manual movable seat ground curtain during use, can be pulled out projection screen, after finishing using, projection screen is received on the projection screen trombone slide, and the lifting of projection screen is adopted manually, and screen is steady inadequately when operation, damage easily during misoperation, influence is used, and brings a lot of inconveniences to the user.The electronic screen apparatus of packaged type has appearred on the market, lifting by the Electric Machine Control screen, the motor rotation discharges curtain during use, support bar is under the effect of elastic force, support curtain, after finishing using, motor reverse rotation coiling curtain, curtain is housed in the housing, has solved the inconvenience that above movable manual seat ground curtain is brought.But because the packaged type claimed structure is simplified as far as possible, finish, when carrying is light, bring certain inconvenience to the user by manually-operated.Along with the user is more and more higher to the requirement of projection screen product, projection screen will satisfy structure to be simplified as far as possible, easy and simple to handle, need not to install, and carries light demand.
Summary of the invention
The objective of the invention is to improve the deficiencies in the prior art part, and provide a kind of simple in structure, need not to install, the electronic seat ground lifting of a kind of folding casing projection screen simple to operation.
The objective of the invention is to realize that by following measure it is by casing casing folding lid, transfer bar mechanism, synchronous motor, curtain lifting arm, curtain, free bearing, tube, motor is formed, and motor connects tube by adapter sleeve, and the casing left end is installed left socle, the casing right-hand member is installed right support, and the axle core of tube plug is connected in the pilot hole of right support, and the square toes of motor locating piece are connected in the pilot hole of left socle, the left end of tube is installed motor and adapter sleeve, and right-hand member is installed the tube plug.The curtain lower end is wound on the tube, the curtain upper end is fixedly mounted on the curtain lifting arm, and hinge connects collapsible support bar on the curtain lifting arm, and the function of collapsible support bar is to promote the curtain lifting arm, drive the curtain lifting arm, make curtain rise to the height and position of requirement.Opening is set on the casing, at length direction twisting connect box folding on one side lid, at casing transfer bar mechanism is set, transfer bar mechanism is by synchronous motor, and push rod constitutes, and the synchronous motor output shaft connects push rod.Push rod one end hub is connected folding and covers, and the other end is fixed on the synchronous motor output shaft.When lifting screen from the state of accommodating when user mode changes, motor discharges curtain, the curtain lifting arm rises, the synchronous motor rotation drives the transfer bar mechanism jack-up casing folding lid that makes progress, the curtain lifting arm continues to be pulled upwardly curtain to desired location.When lifting screen from user mode when accommodating Status Change, driven by motor tube coiling curtain compresses collapsible support bar, the curtain lifting arm descends, after curtain is accommodated casing fully, the synchronous motor reverse rotation, drive transfer bar mechanism and close casing folding lid downwards, synchronous motor stops the rotation, screen execution change.
Push rod of the present invention is by upper push-rod, lower push-rod constitutes, insert the guide pole of making guiding usefulness in upper push-rod and the lower push-rod, telescopic push rod spring, the elastic cylindrical pin of fixed guide pole and push rod spring constitutes, the last end hub connect box folding lid of upper push-rod, the lower end hinge of lower push-rod connects revolving fragment, and revolving fragment connects synchronous motor.
The present invention is provided with upper limit trigger and lower limit triggering device, and the upper limit trigger is set on casing, and the lower limit triggering device is set on casing, and transfer bar mechanism touches the upper limit trigger, and transfer bar mechanism touches the lower limit triggering device.Rise at curtain and must open the folding lid before colliding folding lid, accommodate the closed folding in back at curtain and cover.By driven by motor, the switching of control folding lid.When screen from the state of accommodating when user mode changes, motor discharges curtain, the curtain lifting arm rises, the control trigger makes the motor rotation, drive transfer bar mechanism and upwards open the folding lid, the folding lid opens to required upper limit position, and transfer bar mechanism touches folding and covers spacing trigger, motor stops the rotation, and the curtain lifting arm continues to be pulled upwardly curtain to desired location.When screen from user mode when accommodating Status Change, motor coiling curtain compression support bar, the curtain lifting arm descends, after curtain was accommodated fully, curtain lifting arm control trigger used the motor reverse rotation, drove transfer bar mechanism and closed the folding lid downwards, the folding lid is closed to required lower position, transfer bar mechanism touches folding lid lower limit triggering device, and motor stops the rotation, and change is finished in screen.
The power of motor of the present invention is transferred to tube coiling curtain by adapter sleeve, and tube plug axle core and motor locating piece square toes are positioned the pilot hole of left and right sides support respectively, thereby the assurance electric machine assembly turns round steadily and is horizontal.In use, when reclaiming curtain, the driven by motor tube rotates.Because of curtain is wound on the tube, curtain will spur the curtain lifting arm and move downward, the power that the driving force of motor will impel support bar to overcome the support bar spring folds until regaining whole screen, when needs during with the screen pull-up, motor oppositely commentaries on classics revolves, screen will be in release conditions, and support bar is jack-up curtain lifting arm under the effect of support bar spring, and the pulling curtain moves up to the working depth of setting.
The function of the collapsible support bar of the present invention is to promote the curtain lifting arm, driving the curtain lifting arm makes curtain rise to the height and position of requirement, collapsible support bar is by upper support bar, lower support bar, the joint, coupling shaft, the support bar spring, wire rope, free bearing is formed, upper support bar one end is fixed in the curtain lifting arm, lower support bar one end is fixed on the base by free bearing, upper support bar, the other end of lower support bar is equipped with upper joint respectively, hypozygal, upper joint, hypozygal is connected by coupling shaft, one end of support bar spring is fixed on the lower support bar, wire rope of another termination is fixed on the upper support bar, make spring produce a pretension during installation, make upper support bar, lower support bar is in open configuration all the time, the acting force of its generation will be complementary with the power of motor, can drive screen to duty, the power of motor can overcome the acting force of support bar spring again screen is regained, satisfying under the prerequisite of above-mentioned condition, spring force is the smaller the better, can reduce the rigidity and the requirement of strength of total like this, reduce wall thickness when making the design of support bar and curtain lifting arm as far as possible, reduce weight, and can make the curtain distortion that is not stretched.Upper support bar pair of right and left combined crosswise is installed between curtain lifting arm and the casing, lower support bar pair of right and left combined crosswise is installed between curtain lifting arm and the casing, the intersection end of a pair of upper support bar is connected with hypozygal by upper joint with the end that intersects of a pair of lower support bar, the design that intersects can make the height of rise can be greater than the length of base
The a pair of upper support bar of the collapsible support bar of the present invention or a pair of lower support bar pair of right and left combined crosswise are connected by a sliding connector, and in use, when reclaiming curtain, the driven by motor tube rotates.Because of curtain is wound on the tube, curtain will spur the curtain lifting arm and move downward, the power that the driving force of motor will impel support bar to overcome the support bar spring folds until regaining whole screen, when needs during with the screen pull-up, motor oppositely commentaries on classics revolves, screen will be in release conditions, support bar will be under the effect of support bar spring jack-up curtain lifting arm, and the pulling curtain moves up to the working depth of setting.Upper support bar is provided with a chute, and sliding connector is installed in the chute of upper support bar, and left and right sides upper support bar infall connects by sliding connector.Or lower support bar is provided with a chute, and sliding connector is installed in the chute of lower support bar, and left and right sides lower support bar infall connects by sliding connector.Sliding connector can slide along the support bar length direction in groove freely, connects by sliding connector, and the relative position of two arms can keep, and screen does not tilt, and is non-warping, thereby makes two bar one interlocks reach the stable purpose that folds well.
The present invention installs left socle and the right support that is used for fixing motor at casing, motor locating piece fixed electrical machinery is on left socle, and motor connects tube by adapter sleeve, and the tube plug is connected on the right support, curtain is wound on the tube, and the curtain other end is fixedly mounted on the curtain lifting arm.Utilize two collapsible support bar one end hubs to link the curtain lifting arms, the other end links by free bearing and base hinge on the bedplate that is fixed on casing.
The present invention installs the Electric Machine Control button at casing, and the Electric Machine Control button is connected on the main circuit board, can manually control the lifting of lifting screen.Main circuit board is provided with external infrared interface, computing machine delivery outlet and trigger jointing holes, can be external infrared receiver control, or by computer control, or control automatically by trigger.
The present invention is simple in structure, and is simple to operation, the electronic seat ground lifting projection screen that need not to install.
Description of drawings
Accompanying drawing 1 is to use the front view (FV) of the lifting screen of posture.
Accompanying drawing 2 is to use the back view of the lifting screen of posture.
Accompanying drawing 3 is to use the outboard profile of the lifting screen of posture.
Accompanying drawing 4 is the front view (FV)s of accommodating the lifting screen of posture.
Accompanying drawing 5 is the back views after a part of accommodating the lifting screen of posture is omitted.
Accompanying drawing 6 is the vertical outboard profiles that cut of accommodating the lifting screen of posture.
Accompanying drawing 7 is the partial structurtes synoptic diagram after a part of accommodating posture is omitted.
Accompanying drawing 8 is to accommodate the partial structurtes synoptic diagram of posture after a part of using posture changing is omitted.
Accompanying drawing 9 is to use the partial structurtes synoptic diagram after the part of posture is omitted.
Accompanying drawing 10 is upper support bar and lower support bar structural representation.
Accompanying drawing 11 (a) is to use the upper support bar and the lower support bar structural representation of the lifting screen of posture;
Accompanying drawing 11 (b) is to use posture and accommodates the upper support bar and the lower support bar structural representation of the middle posture of posture;
Accompanying drawing 11 (c) is the upper support bar and the lower support bar structural representation of accommodating the lifting screen of posture.
Accompanying drawing 12 (a) is the exploded perspective view of transfer bar mechanism.
Accompanying drawing 12 (b) is the synoptic diagram of transfer bar mechanism.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Figure number and title thereof are as follows:
1：2：3：4：5：6：7：8：9：10：11：12：13：14：15：15A：16：16A：17：17A：18：19：20：21：22：23：24：25：26：27：28：29：30：31：32：33：34：35：36：37：38：39：40：41：42：43。
Shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, the electronic seat of folding casing of the present invention ground lifting screen 1 has represented to contain curtain 2.The length direction (left and right sides Width of screen) that being used to shown in the accompanying drawing 1 accommodated the casing 11 of curtain 2 is as left and right directions, will describe as fore-and-aft direction perpendicular to the direction of the length direction (left and right sides Width of screen) of casing.Left socle 9 is installed and right support 10 is installed at the left end of the casing 11 of wooden (also can be other material), be used for fixing the motor 4 that power is provided and the tube 5 of coiling curtain 2 at right-hand member.The left end of tube 5 is installed motor 4 and adapter sleeve 6, and right-hand member is installed tube plug 8.The locating piece square toes of motor 4 are positioned the pilot hole of left socle 9, and the axle core of tube plug 8 is positioned the pilot hole of right support 10.The lower end of curtain 2 is wound on the tube 5, and the upper end is fixedly mounted on the curtain lifting arm 3.At the both ends, the left and right sides of described curtain lifting arm 3 (also can be the position of being partial to central authorities from peripheral both ends slightly), hinge connects collapsible support bar 25 respectively.The function of collapsible support bar 25 is to promote curtain lifting arm 3, drives curtain lifting arm 3 and makes curtain 2 rise to the height and position of requirement.
As described in accompanying drawing 10, accompanying drawing 11 (a), accompanying drawing 11 (b), accompanying drawing 11 (c), collapsible support bar 25 is made up of upper support bar 26, lower support bar 27, upper joint 28, hypozygal 29, coupling shaft 30, wire rope 31, support bar spring 32, free bearing 34.Upper support bar 26 upper ends of collapsible support bar 25 are fixed in curtain lifting arm 3 and are rotated, lower end at upper support bar 26 is equipped with upper joint 28 respectively, upper end at lower support bar 27 is equipped with hypozygal 29 respectively, upper joint 28 is connected by coupling shaft 30 with hypozygal 29, and the intersection end of upper support bar 26 is connected with hypozygal 29 by upper joint 28 with the end that intersects of lower support bar 27.One end of support bar spring 32 is fixed on the lower support bar 27, and wire rope 31 of another termination is fixed on the upper support bar 26, makes spring produce a pretension during installation, makes lower support bar be in open configuration all the time.Be provided with free bearing 34 in the lower end of lower support bar 27, be fixed on the base 35 of cabinet base plate 36 of casing 2 by free bearing 34 and can rotate.Though free bearing 34 fixed fold formula support bar 25 more firmly is set, also can saves.For making a pair of collapsible support bar 25 can more effectively support curtain lifting arm 3 and curtain 2, with be configured in described screen left and right sides Width left side collapsible support bar 25 described relatively lifting screen 1 left and right sides central part in joint and be configured in the right side, and, with be configured in Width right side, the described screen left and right sides collapsible support bar 25 the described relatively lifting screen 1 in joint left and right sides central part and be configured in the left side, even a pair of upper support bar 26 and a pair of lower support bar 27 intersect placement respectively.A pair of collapsible support bar 25 combined crosswise are installed between curtain lifting arm 3 and the casing 11, and the design of intersection can make the height of rise can be greater than the length of base.
In use, the effect of motor 4 provides needed power when being to reclaim curtain, and the power of motor 4 is transferred to tube 5 coiling curtains 2 by adapter sleeve 6, thereby the assurance electric machine assembly turns round steadily and is horizontal.When reclaiming curtain 2, motor 4 drives tube 5 and rotates.Because of curtain 2 is wound on the tube 5, curtain 2 will spur curtain lifting arm 3 and move downward, the power that the driving force of motor 4 will impel collapsible support bar 25 to overcome support bar spring 32 folds until regaining whole screen, when needs during with curtain 2 pull-ups, motor 2 oppositely commentaries on classics revolves, curtain 2 will be in and discharge shape and read, collapsible support bar 25 will be under the effect of support bar spring 32 jack-up curtain lifting arm 3, and pulling curtain 2 moves up to the working depth of setting.
Shown in accompanying drawing 3, accompanying drawing 6, accompanying drawing 10, upper support bar 26 is provided with a chute, and upper support bar 26 reeded one sides in the left and right sides are installed relatively.Respectively on the infall of described left and right sides upper support bar 26, sliding connector 33 is installed, on the fore-and-aft direction and be positioned at the left and right directions substantial middle on the drop wire S, relatively rotate and connect sliding connector 33 freely, and make the collapsible support bar 25 in the left and right sides can be smoothly, stably flexible.Sliding connector 33 is I shapes, at sliding connector 33 two ends respectively in the chute of upper support bar 26, chute cooperates with sliding connector 33, with screen 2 when use posture and accommodate the mutual conversion of posture, because upper support bar 26, the 26th, be symmetrical state with position always and use sliding connector 33 connection status, so collapsible support bar 25 actions about usually making reposefully at arbitrary height.Here, its embodiment though be that sliding connector 33 is installed, also can be installed sliding connector 33 on lower support bar 27 on upper support bar 26, also can sliding connector 33 all be installed at upper support bar 26 and lower support bar 27 both sides.
Shown in accompanying drawing 3, accompanying drawing 6, promote curtain lifting arm 3 at the collapsible support bar 25 of user mode, drive curtain lifting arm 3 and make curtain 2 rise to the height and position of requirement, curtain 2 is raised in casing 11, after finishing using, motor 4 drives tube 5 coiling curtains, regains in the casing 11.Direction is provided with opening on casing 11, and casing folding lid 12 is set, and meanwhile above length direction use hinge 13 twisting connect boxes 11 opening and casing folding lid 12, make casing folding lid 12 can wrap page or leaf 13 and rotate.For making lifting screen 1 can finish user mode and accommodating change between the state, rise at curtain 2 and must open the casing folding before colliding casing folding lid 12 and cover 12, accommodate the closed casing folding lid 12 in back at curtain 2, closing device can be set, by the switching of control system control casing folding lid 12.
Shown in accompanying drawing 6, accompanying drawing 7, accompanying drawing 8, accompanying drawing 9, closing device is made up of following 3 parts: the synchronous motor 20 of power is provided, enlarges the revolving fragment 21 of synchronous motor 20 output shaft radiuss of turn and promote the casing folding and cover the transfer bar mechanism 14 of 12 foldings.Control system is made up of following 3 parts: the trigger switch 22 of curtain lifting arm 3 lower positions sampling usefulness, the folding of control casing cover the upper limit position trigger 23 of 12 open positions and the lower position trigger 24 that 12 off-positions are covered in the folding of control casing.Synchronous motor 20 is installed on the motor fixing plate 37 of casing 11, for enlarging the radius of turn of synchronous motor 20, increases the actuating length of transfer bar mechanism 14, and revolving fragment 21 is installed on synchronous motor 20.The last end hub of transfer bar mechanism 14 is connected casing folding lid 12 deflection hinge 13 positions on one side, (enough big as the actuating length that transfer bar mechanism 14 is set, also can hinge be connected position or other position of deflection central authorities slightly), the lower end hinge is connected on the revolving fragment 21 and can rotates around coupling shaft.Trigger switch 22 is arranged on the cabinet base plate 36 of casing 1, can determine curtain lifting arm 3 lower positions effectively, also can be arranged on other position.Upper limit position trigger 23 and lower position trigger 24 are arranged on the motor fixing plate 37 and the position of close revolving fragment 21, utilize revolving fragment 21 position of rotation to touch trigger, though utilize revolving fragment 21 can control motor 4 actions accurately and effectively, also can utilize position control motor 4 actions of transfer bar mechanism 14 or casing folding lid 12.
When lifting screen 1 from the state of accommodating when user mode changes, motor 4 discharges curtains 2, curtain lifting arm 3 rises, and unclamps trigger switch 22, synchronous motor 20 rotations drive upwards jack-up casing folding lid 12 of transfer bar mechanism 14.The opening speed of casing folding lid 12 is faster than curtain lifting arm 3 ascending velocity, rises at lifting arm 3 to collide the casing folding and cover 12 front openings.Casing folding lid 12 opens to required upper limit position, and revolving fragment 21 touches upper limit trigger 23, and synchronous motor 20 stops the rotation, and curtain lifting arm 3 continues to be pulled upwardly curtain 2 to desired location.When lifting screen 1 from user mode when accommodating Status Change, motor 4 drives the collapsible support bar 25 of tube 5 coiling curtains, 2 compressions, curtain lifting arm 3 descends, and after curtain 2 was accommodated casing 11 fully, curtain lifting arm 3 was pushed down trigger switch 22, synchronous motor 20 reverse rotations, drive transfer bar mechanism 14 and close casing folding lid 12 downwards, casing folding lid 12 is closed to required lower position, and revolving fragment 21 touches lower limit triggering device 24, synchronous motor 20 stops the rotation, screen execution change.
Shown in accompanying drawing 12 (a) and accompanying drawing 12 (b), crush the operator when avoiding casing folding lid 12 closed, telescopic push rod spring 18 is set on described transfer bar mechanism 14.Transfer bar mechanism 14 is made of following 5 parts: upper push-rod 15, lower push-rod 16 inserts the guide pole 17 of making guiding usefulness in upper push-rod 15 and the lower push-rod 16, telescopic push rod spring 18, the elastic cylindrical pin 19 of fixed guide pole 17 and push rod spring 18.Insert in the lower push-rod 16 as the end of accompanying drawing 12 (a) guide pole 17, run through the through hole 16A of lower push-rod 16 and the through hole 17A of guide pole 17 with elastic cylindrical pin 19, but fixed guide pole 17, be inserted in push rod spring 18 then, the other end of guide pole 17 inserts in the upper push-rod 15, runs through the through hole 15A of upper push-rod 15 with elastic cylindrical pin 19.Shown in accompanying drawing 12 (b), the length of elastic cylindrical pin 19 is longer than the diameter length of upper push-rod 15 and lower push-rod 16, utilize elastic cylindrical pin 19 to block each one to two circle of two ends of push rod spring 18, elasticity connects upper push-rod 15 and lower push-rod 16, upper push-rod 15 is connected under the effect in the guiding of guide pole 17 and the elasticity of push rod spring 18, can in axial direction do to come and go in certain stroke range and move.The last end hub connect box folding lid 12 of upper push-rod 15, the lower end hinge of lower push-rod 16 connects revolving fragment, under normal condition, upper push-rod 15 and lower push-rod 16 synchronization actions, when casing folding lid 12 is closed when stopping when running into barrier, upper push-rod 15 stops to move down, also be not closed to the lower position of setting because of casing folding lid 12, revolving fragment 21 does not touch lower limit triggering device 24, synchronous motor 20 continues action, and lower push-rod 16 continues to move down, and push rod spring 18 is elongated, upper push-rod 15 in axial direction separates with lower push-rod 16, plays anti-tong function.Here, its embodiment though be to use elastic cylindrical pin 19 fixed guide poles 17 and bar spring 18, also can use bolt and nut to fix, and also can make otherwise fixing.
As shown in Figure 3, circuit board 38 is arranged on the casing 11, circuit board 38 is provided with remote manual control switching button 39, manual control button 40, external infrared interface 41, computer control signal input hole 42 and trigger jointing holes 43, the lifting that can manually control lifting screen 1 stops, also can connect computing machine or trigger and control automatically, enlarged the scope of application thus by external infrared controller remote control.
External infrared interface 41: computing machine delivery outlet 42: trigger jointing holes 43.The possibility of utilizing on the industry
According to the present invention, rising the use posture of screen, by being configured in the flexible of collapsible sway brace, can be smoothly and support screen reposefully.Pack up under the situation of accommodating posture of screen, driven by motor tube coiling curtain compresses collapsible sway brace, thereby takes in curtain.Afterburning parts are installed in the arm, and the advantage of beautifying outward appearance is arranged.
By sliding connector being installed at left and right sides upper support bar, the collapsible support bar in the left and right sides is connected, prevention fore-and-aft direction in using posture or posture change action separates and makes the screen distortion or wave the appearance of problems such as producing distortion and breakage, can use long-term and stably.Again because shake left and right sides bar with same waving angle with the sliding connector after linking, thus can be with the state of one interlock, and left and right sidesing post reposefully stretches.Advantage with the simplification that can seek to constitute.
In use, need only press screen and launch button, screen will be opened the folding lid automatically, and screen rises from casing, when not using, can press screen and reclaim key, screen is housed in the casing, and cover the folding lid.Use the folding body structure, can protect curtain effectively, the beautiful top grade of outward appearance.The switching of folding lid is controlled automatically by motor and trigger, need not people's manual manipulation, has conveniently simple advantage.Transfer bar mechanism is provided with spring, and when running into barrier, spring is elongated, and except that can the effect of start protection motor, also playing protection has people's will to crush function outward, safe and reliable advantage.
Circuit board is arranged on the casing, is provided with hand push button at circuit board, external infrared remote control interface, Computer control signal input hole and projector's synchronizer trigger jointing holes can be used multi-kind control, have enlarged The scope of application of lifting screen has intelligence, advantage flexibly.
Claims (8)
1, the electronic seat ground lifting of a kind of folding casing projection screen, by casing, casing folding lid, the curtain lifting arm, curtain, free bearing, tube, motor is formed, and motor connects tube by adapter sleeve, and the casing left end is installed left socle, the casing right-hand member is installed right support, the axle core of tube plug is connected in the pilot hole of right support, and the square toes of motor locating piece are connected in the pilot hole of left socle, and the left end of tube is installed motor and adapter sleeve, right-hand member is installed the tube plug, the curtain lower end is wound on the tube, and the curtain upper end is fixedly mounted on the curtain lifting arm, and hinge connects collapsible support bar on the curtain lifting arm, opening is set on the casing, at length direction twisting connect box folding on one side lid, it is characterized in that transfer bar mechanism being set at casing, transfer bar mechanism is by synchronous motor, push rod constitutes, the synchronous motor output shaft connects push rod, and push rod one end hub is connected folding and covers, and the other end is fixed on the synchronous motor output shaft.
2, the electronic seat ground lifting of a kind of folding casing according to claim 1 projection screen, it is characterized in that push rod is by upper push-rod, lower push-rod constitutes, insert the guide pole of making guiding usefulness in upper push-rod and the lower push-rod, telescopic push rod spring, the elastic cylindrical pin of fixed guide pole and push rod spring constitutes, the last end hub connect box folding lid of upper push-rod, the lower end hinge of lower push-rod connects revolving fragment, and revolving fragment connects synchronous motor.
3, the electronic seat ground lifting of a kind of folding casing according to claim 1 projection screen, it is characterized in that on casing, being provided with the upper limit trigger, the lower limit triggering device is set on casing, and transfer bar mechanism touches the upper limit trigger, and transfer bar mechanism touches the lower limit triggering device.
4, the electronic seat ground lifting of a kind of folding casing according to claim 1 projection screen, it is characterized in that collapsible support bar is by upper support bar, lower support bar, the joint, coupling shaft, the support bar spring, wire rope, free bearing is formed, upper support bar one end is fixed in the curtain lifting arm, lower support bar one end is fixed on the base by free bearing, upper support bar, the other end of lower support bar is equipped with upper joint respectively, hypozygal, upper joint, hypozygal is connected by coupling shaft, one end of support bar spring is fixed on the lower support bar, and wire rope of another termination is fixed on the upper support bar.
5, the electronic seat ground lifting of a kind of folding casing according to claim 1 projection screen is characterized in that two collapsible support bar one end hubs link the curtain lifting arms, and the other end links by free bearing and base hinge on the bedplate that is fixed on casing.
6, the electronic seat ground lifting of a kind of folding casing according to claim 1 projection screen is characterized in that at casing the Electric Machine Control button being installed, and the Electric Machine Control button is connected on the main circuit board.
7, the electronic seat ground lifting of a kind of folding casing according to claim 4 projection screen, the a pair of upper support bar or a pair of lower support bar pair of right and left combined crosswise that it is characterized in that collapsible support bar, connect by a sliding connector, upper support bar is provided with a chute, sliding connector is installed in the chute of upper support bar, and left and right sides upper support bar infall connects by sliding connector.
8, the electronic seat ground lifting of a kind of folding casing according to claim 6 projection screen is characterized in that main circuit board is provided with external infrared interface, computing machine delivery outlet and trigger jointing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920052645 CN201392447Y (en) | 2009-03-10 | 2009-03-10 | Electric ground lifting projection screen with opening-closing case body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920052645 CN201392447Y (en) | 2009-03-10 | 2009-03-10 | Electric ground lifting projection screen with opening-closing case body |
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| CN201392447Y true CN201392447Y (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200920052645 Expired - Lifetime CN201392447Y (en) | 2009-03-10 | 2009-03-10 | Electric ground lifting projection screen with opening-closing case body |
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| CN102289142A (en) * | 2011-08-17 | 2011-12-21 | 江苏红叶视听器材股份有限公司 | Lower screen opening shielding device for screen |
| CN102455587A (en) * | 2010-10-29 | 2012-05-16 | 深圳市白雪投影显示技术有限公司 | Floor standing screen |
| CN106693403A (en) * | 2016-12-07 | 2017-05-24 | 华强方特（芜湖）文化科技有限公司 | Screen window device for performances |
| CN108223127A (en) * | 2018-03-14 | 2018-06-29 | 山东交通学院 | A kind of modified marine main engine electric barring machine |
| CN109164669A (en) * | 2018-10-12 | 2019-01-08 | 广州市创视智能设备有限公司 | A kind of electric folding gate-type projection screen |
| CN109991804A (en) * | 2019-05-18 | 2019-07-09 | 烟台工程职业技术学院(烟台市技师学院) | A kind of lift Projection Display all-in-one machine |
| CN111071499A (en) * | 2019-12-31 | 2020-04-28 | 中国科学院空间应用工程与技术中心 | Material cabin external exposure device |
| CN111071498A (en) * | 2019-12-31 | 2020-04-28 | 中国科学院空间应用工程与技术中心 | Positioning device for rotation lifting of test box, rotation lifting mechanism and exposure device |
| CN111638623A (en) * | 2020-05-28 | 2020-09-08 | 青岛海信激光显示股份有限公司 | Lifting type curling screen |
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2009
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| CN111071499B (en) * | 2019-12-31 | 2021-06-22 | 中国科学院空间应用工程与技术中心 | Material cabin external exposure device |
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| CN111071499A (en) * | 2019-12-31 | 2020-04-28 | 中国科学院空间应用工程与技术中心 | Material cabin external exposure device |
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Granted publication date: 20100127 |