CN103343864A - Projector power-driven lifting frame - Google Patents
Projector power-driven lifting frame Download PDFInfo
- Publication number
- CN103343864A CN103343864A CN2013102316216A CN201310231621A CN103343864A CN 103343864 A CN103343864 A CN 103343864A CN 2013102316216 A CN2013102316216 A CN 2013102316216A CN 201310231621 A CN201310231621 A CN 201310231621A CN 103343864 A CN103343864 A CN 103343864A
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- scaffold
- rise
- withdraw fram
- lifting
- scissors type
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Abstract
The invention discloses a projector power-driven lifting frame which is hung below ceilings. A lifting and shrinking frame is connected with the lower portion of an upper installation frame, and a lower installation frame is connected with the lower portion of the lifting and shrinking frame. A first upper sliding groove, a second upper sliding groove and a third sliding groove are formed in the upper installation frame, and a first lower sliding groove, a second lower sliding groove and a third lower sliding groove are formed in the lower installation frame. The lifting and shrinking frame comprises a first shear-fork-typed lifting and shrinking frame, a second shear-fork-typed lifting and shrinking frame and a third shear-fork-typed lifting and shrinking frame. One sides of the upper end and the lower end of the first shear-fork-typed lifting and shrinking frame are movably installed in the first upper sliding groove and the first lower sliding groove respectively. One sides of the upper end and the lower end of the second shear-fork-typed lifting and shrinking frame are movably installed in the second upper sliding groove and the second lower sliding groove respectively. One sides of the upper end and the lower end of the third shear-fork-typed lifting and shrinking frame are movably installed in the third upper sliding groove and the third lower sliding groove respectively. The other sides of the upper end and the lower end of the first shear-fork-typed lifting and shrinking frame are hinged to the upper installation frame and the lower installation frame respectively. The other sides of the upper end and the lower end of the second shear-fork-typed lifting and shrinking frame are hinged to the upper installation frame and the lower installation frame respectively. The other sides of the upper end and the lower end of the third shear-fork-typed lifting and shrinking frame are hinged to the upper installation frame and the lower installation frame respectively. The upper end of a rolling belt is fixed on the upper installation frame, and the lower end of the rolling belt is arranged on a winding rolling device which is installed on the lower installation frame. The projector power-driven lifting frame is stable and reliable in operation, high in safety and convenient to install and maintain.
Description
Technical field
The present invention relates to a kind of projector lifting frame, particularly a kind of projector electric lifting/lowering frame that is suspended under the ceiling board.
Background technique
Projector has been widely used in meeting, places such as teaching, in simple place, because personnel are fewer, the direct placement of projector can be satisfied usage requirement on the table, but for large-scale meeting room, places such as classroom, because personnel are more, projector is placed the drop shadow effect that can influence projector on the table, just needing to adopt projector electric lifting/lowering frame that projector is hung this moment places, the present projector electric lifting/lowering frame that adopts, its structure comprises the last scaffold that is fixedly mounted on the ceiling board, below last scaffold, rise-withdraw fram is installed, scaffold down is installed below rise-withdraw fram, projector can be installed in down on the scaffold, the front and back position of last scaffold offers upper hopper chute respectively, the front and back position of following scaffold offers the gliding groove corresponding with upper hopper chute respectively, rise-withdraw fram is two scissors type rise-withdraw frams that are parallel to each other and install, scissors type rise-withdraw fram top one side is hinged on the scaffold, the top opposite side is movably arranged in the upper hopper chute, scissors type rise-withdraw fram bottom one side is hinged on down on the scaffold, the bottom opposite side is movably arranged in the gliding groove, the drive unit that drives the rise-withdraw fram lifting is arranged in the scaffold, when being fixedly mounted on projector electric lifting/lowering frame on the ceiling board, also drive unit is enclosed between ceiling board and the last scaffold simultaneously.
The major defect that the projector electric lifting/lowering frame of said structure exists is: in projector electric lifting/lowering frame lifting process, because a side of scissors type rise-withdraw fram upper/lower terminal is movable the installation, opposite side is to be fixedly hinged, in running, inevitably can produce the destabilizing factor toward lopsidedness, following scaffold shakes in lifting process easily, has influenced Security and reliability; When projector electric lifting/lowering frame is installed drive unit is enclosed in ceiling board and the last scaffold, inconvenience is installed, and when drive unit breaks down, whole the disassembling just of projector electric lifting/lowering frame can need be overhauled, maintenance is inconvenient.
Summary of the invention
The technical problem of solution required for the present invention is: a kind of stable and reliable operation, installation and maintenance projector electric lifting/lowering frame easily is provided.
For addressing the above problem, the technical solution used in the present invention is: described projector electric lifting/lowering frame, comprise scaffold, below last scaffold, be connected with rise-withdraw fram, below rise-withdraw fram, be connected with scaffold down, left side in last scaffold front offers first upper hopper chute, offers second upper hopper chute in the left side of last scaffold back, and the side on the last scaffold left side offers the 3rd upper hopper chute; Left side in following scaffold front offers first gliding groove corresponding with first upper hopper chute, left side in following scaffold back offers second gliding groove corresponding with second upper hopper chute, offers three gliding groove corresponding with the 3rd upper hopper chute on the left side of following scaffold; Rise-withdraw fram comprises the first scissors type rise-withdraw fram, the second scissors type rise-withdraw fram and the 3rd scissors type rise-withdraw fram, one side of the first scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in first upper hopper chute and first gliding groove, and can in first upper hopper chute and first gliding groove, slide respectively, the opposite side of the first scissors type rise-withdraw fram upper/lower terminal is hinged on the front of scaffold and following scaffold respectively; One side of the second scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in second upper hopper chute and second gliding groove, and can in second upper hopper chute and second gliding groove, slide respectively, the opposite side of the second scissors type rise-withdraw fram upper/lower terminal is hinged on the back of scaffold and following scaffold respectively; One side of the 3rd scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in the 3rd upper hopper chute and the 3rd gliding groove, and can in the 3rd upper hopper chute and the 3rd gliding groove, slide respectively, the opposite side of the 3rd scissors type rise-withdraw fram upper/lower terminal is hinged on the left side of scaffold and following scaffold respectively; The upper end of rolling band is fixed on the scaffold, and the lower end of rolling band is arranged on the coiling drive unit, and the coiling drive unit is installed in down on the scaffold, and the rolling band can be reeled and discharge to the coiling drive unit, carries out lifting thereby drive expansion bracket.
Further, aforesaid projector electric lifting/lowering frame, wherein, a kind of concrete structure of coiling drive unit comprises: inside is provided with the motorized pulleys of tube shaped electric machine, the head of tube shaped electric machine stretches out from motorized pulleys one end, motorized pulleys one end is by the head of tube shaped electric machine, the other end is installed in down in the scaffold by a bearing support, be provided with the controller of control motor rotational travel at the head of tube shaped electric machine, offer two through holes on the following scaffold corresponding with the adjusting button of controller, rolling band lower end is fixedly connected on the motorized pulleys, when motorized pulleys rotate, the rolling band is wound onto on the motorized pulleys, or discharge from motorized pulleys, thereby drive the rise-withdraw fram lifting.
Further, aforesaid projector electric lifting/lowering frame, wherein, the another kind of concrete structure of coiling drive unit comprises: cylinder, cylinder one end is equipped with the controller of control motor rotational travel, the cylinder the other end is installed on the bearing support, controller and bearing support are installed in down in the scaffold, offer two through holes on the following scaffold corresponding with the adjusting button of controller, rolling band lower end is fixedly connected on the cylinder, be provided with driven gear at the cylinder middle part, driven gear is meshed with driving gear on being installed in motor shaft, and motor is installed in down on the scaffold, when cylinder rotates, the rolling band is wound onto on the cylinder, or discharge from cylinder, thereby drive the rise-withdraw fram lifting.
Further, aforesaid projector electric lifting/lowering frame wherein, is separately installed with several card wire clamps in the inboard of the first scissors type rise-withdraw fram, the second scissors type rise-withdraw fram and the 3rd scissors type rise-withdraw fram.
The invention has the beneficial effects as follows: the left side at last scaffold and following scaffold is connected with the 3rd scissors type rise-withdraw fram, makes the good stability of scaffold in running down to shake in the movement process, and is safe, reliable; In addition, the coiling drive unit is arranged on down in the scaffold, when the coiling drive unit breaks down when needing repairing, does not need whole projector electric lifting/lowering frame is just disassembled and can directly keep in repair, the installation and maintenance of projector electric lifting/lowering frame are very convenient.
Description of drawings
Fig. 1 is the structural representation of projector electric lifting/lowering frame of the present invention.
Fig. 2 is the structural representation of left apparent direction among Fig. 1.
Fig. 3 is the structural representation of back apparent direction among Fig. 1.
Fig. 4 is a kind of plan structure schematic representation of drive unit.
Fig. 5 is the plan structure schematic representation of another kind of drive unit.
Fig. 6 is the structural representation that A-A analyses and observe among Fig. 5.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment technical solutions according to the invention are described in further detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, projector electric lifting/lowering frame of the present invention, comprise the last scaffold 1 that is fixedly mounted on the ceiling board, below last scaffold 1, be connected with rise-withdraw fram, below rise-withdraw fram, be connected with scaffold 2 down, left side in last scaffold 1 front offers first upper hopper chute 111, offers second upper hopper chute 112 in the left side of last scaffold 1 back, and the side on last scaffold 1 left side offers the 3rd upper hopper chute 113; Offer first gliding groove 21 corresponding with first upper hopper chute 111 in the following left side of scaffold 2 fronts, offer second gliding groove 22 corresponding with second upper hopper chute 112 in the following left side of scaffold 2 back, offer three gliding groove 23 corresponding with the 3rd upper hopper chute 113 at the end on the left side of scaffold 2 down.Rise-withdraw fram comprises the first scissors type rise-withdraw fram 31, the second scissors type rise-withdraw fram 32 and the 3rd scissors type rise-withdraw fram 33, the left side, upper end of the first scissors type rise-withdraw fram 31 is movably connected in first upper hopper chute 111, also can slides in first upper hopper chute 111, the right side, upper end of the first scissors type rise-withdraw fram 31 is hinged on the right side of scaffold 1 front, the left side, lower end of the first scissors type rise-withdraw fram 31 is movably connected in first gliding groove 21, also can slides in first gliding groove 21, and the right side, lower end of the first scissors type rise-withdraw fram 31 is hinged on down the right side of scaffold 2 fronts; The left side, upper end of the second scissors type rise-withdraw fram 32 is movably connected in second upper hopper chute 112, also can slides in second upper hopper chute 112, the right side, upper end of the second scissors type rise-withdraw fram 32 is hinged on the right side of scaffold 1 back, the left side, lower end of the second scissors type rise-withdraw fram 32 is movably connected in second gliding groove 22, also can slides in second gliding groove 22, and the right side, lower end of the second scissors type rise-withdraw fram 32 is hinged on down the right side of scaffold 2 back; Upper end one side of the 3rd scissors type rise-withdraw fram 33 is movably connected in the 3rd upper hopper chute 113, also can slides in the 3rd upper hopper chute 113, the upper end opposite side of the 3rd scissors type lifting frame 33 is hinged on the opposite side on scaffold 1 left side, lower end one side of the 3rd scissors type rise-withdraw fram 33 is movably connected in the 3rd gliding groove 23, also can slides in the 3rd gliding groove 23, and the lower end opposite side of the 3rd scissors type rise-withdraw fram 33 is hinged on down the opposite side on scaffold 2 left sides.Be separately installed with several card wire clamps 4 in the inboard of the first scissors type rise-withdraw fram 31, the second scissors type rise-withdraw fram 32 and the 3rd scissors type rise-withdraw fram 33, card wire clamp 4 can be clamped unnecessary electric wire, makes unnecessary electric wire can not hinder the lifting of rise-withdraw fram.The upper end of rolling band 5 is fixed on the scaffold 1, and the lower end of rolling band 5 is arranged on the coiling drive unit, and the coiling drive unit is installed in down on the scaffold 2, and rolling band 5 can be reeled and discharge to the coiling drive unit, carries out lifting thereby drive rise-withdraw fram.In actual fabrication, a kind of concrete structure of coiling drive unit comprises: inside is provided with the motorized pulleys 61 of tube shaped electric machine, the head 12 of tube shaped electric machine stretches out from an end of motorized pulleys 61, one end of motorized pulleys 61 is by the head 12 of tube shaped electric machine, the other end is installed in down in the scaffold 2 by a bearing support 7, in the head 12 of tube shaped electric machine, be provided with the controller of control motor rotational travel, offer two through holes on the following scaffold 2 corresponding with the adjusting button of controller, in actual applications, can regulate button by through hole, controller is regulated, with the rotational travel of control tube shaped electric machine, thus the stroke of control rolling band 5.The lower end that has two rolling bands 5 in the present embodiment is fixedly connected on the motorized pulleys 61, and when motorized pulleys 61 rotated, rolling band 5 was wound onto on the motorized pulleys 61 or from motorized pulleys 61 and discharges, thereby drives the rise-withdraw fram lifting.
Provided the structural representation of another kind of coiling drive unit as Fig. 5, the another kind of concrete structure of coiling drive unit comprises: cylinder 62, cylinder 62 1 ends are equipped with the controller 8 of control motor rotational travel, cylinder 62 the other ends are installed on the bearing support 7, controller 8 and bearing support 7 are installed in down in the scaffold 2, as shown in Figure 6, offer two through holes 24 on the following scaffold corresponding with the adjusting button of controller 8, can regulate button by through hole 24, controller 8 is regulated, with the rotational travel of control motor 11, thus the stroke of control rolling band 5.The lower end that has two rolling bands 5 in the present embodiment is fixedly connected on the cylinder 62, be provided with driven gear 9 at cylinder 62 middle parts, driven gear 9 is meshed with driving gear 10 on being installed in 11 in motor, motor is installed in down on the scaffold 2, the power of motor 11 is delivered on the cylinder 62 by the gear engagement, when cylinder 62 rotated, rolling band 5 was wound onto on the cylinder 62 or from cylinder 62 and discharges, thereby drives the rise-withdraw fram lifting.
The projector electric lifting/lowering frame of said structure is connected with the 3rd scissors type rise-withdraw fram 33 on the left side of last scaffold 1 and following scaffold 2, makes the good stability of scaffold in running down to shake in the movement process, and is safe, reliable; In addition, the coiling drive unit is arranged on down in the scaffold 2, when the coiling drive unit breaks down when needing repairing, does not need whole projector electric lifting/lowering frame is just disassembled and can directly keep in repair, the installation and maintenance of projector electric lifting/lowering frame are very convenient.
Claims (4)
1. projector electric lifting/lowering frame, comprise scaffold, below last scaffold, be connected with rise-withdraw fram, below rise-withdraw fram, be connected with scaffold down, it is characterized in that: the left side in last scaffold front offers first upper hopper chute, left side in last scaffold back offers second upper hopper chute, and the side on the last scaffold left side offers the 3rd upper hopper chute; Left side in following scaffold front offers first gliding groove corresponding with first upper hopper chute, left side in following scaffold back offers second gliding groove corresponding with second upper hopper chute, offers three gliding groove corresponding with the 3rd upper hopper chute on the left side of following scaffold; Rise-withdraw fram comprises the first scissors type rise-withdraw fram, the second scissors type rise-withdraw fram and the 3rd scissors type rise-withdraw fram, one side of the first scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in first upper hopper chute and first gliding groove, and can in first upper hopper chute and first gliding groove, slide respectively, the opposite side of the first scissors type rise-withdraw fram upper/lower terminal is hinged on the front of scaffold and following scaffold respectively; One side of the second scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in second upper hopper chute and second gliding groove, and can in second upper hopper chute and second gliding groove, slide respectively, the opposite side of the second scissors type rise-withdraw fram upper/lower terminal is hinged on the back of scaffold and following scaffold respectively; One side of the 3rd scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in the 3rd upper hopper chute and the 3rd gliding groove, and can in the 3rd upper hopper chute and the 3rd gliding groove, slide respectively, the opposite side of the 3rd scissors type rise-withdraw fram upper/lower terminal is hinged on the left side of scaffold and following scaffold respectively; The upper end of rolling band is fixed on the scaffold, and the lower end of rolling band is arranged on the coiling drive unit, and the coiling drive unit is installed in down on the scaffold, and the rolling band can be reeled and discharge to the coiling drive unit, carries out lifting thereby drive expansion bracket.
2. according to the described projector electric lifting/lowering of claim 1 frame, it is characterized in that: a kind of concrete structure of coiling drive unit comprises: inside is provided with the motorized pulleys of tube shaped electric machine, the head of tube shaped electric machine stretches out from motorized pulleys one end, motorized pulleys one end is by the head of tube shaped electric machine, the other end is installed in down in the scaffold by a bearing support, be provided with the controller of control motor rotational travel at the head of tube shaped electric machine, offer two through holes on the following scaffold corresponding with the adjusting button of controller, rolling band lower end is fixedly connected on the motorized pulleys, when motorized pulleys rotate, the rolling band is wound onto on the motorized pulleys, or discharge from motorized pulleys, thereby drive the rise-withdraw fram lifting.
3. according to the described projector electric lifting/lowering of claim 1 frame, it is characterized in that: the another kind of concrete structure of coiling drive unit comprises: cylinder, cylinder one end is equipped with the controller of control motor rotational travel, the cylinder the other end is installed on the bearing support, controller and bearing support are installed in down in the scaffold, offer two through holes on the following scaffold corresponding with the adjusting button of controller, rolling band lower end is fixedly connected on the cylinder, be provided with driven gear at the cylinder middle part, driven gear is meshed with driving gear on being installed in motor shaft, motor is installed in down on the scaffold, when cylinder rotates, the rolling band is wound onto on the cylinder, or discharge from cylinder, thereby drive the rise-withdraw fram lifting.
4. according to claim 1 or 2 or 3 described projector electric lifting/lowering framves, it is characterized in that: be separately installed with several card wire clamps in the inboard of the first scissors type rise-withdraw fram, the second scissors type rise-withdraw fram and the 3rd scissors type rise-withdraw fram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102316216A CN103343864A (en) | 2013-06-13 | 2013-06-13 | Projector power-driven lifting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102316216A CN103343864A (en) | 2013-06-13 | 2013-06-13 | Projector power-driven lifting frame |
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| Publication Number | Publication Date |
|---|---|
| CN103343864A true CN103343864A (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102316216A Pending CN103343864A (en) | 2013-06-13 | 2013-06-13 | Projector power-driven lifting frame |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986683A (en) * | 2015-07-28 | 2015-10-21 | 上海富朗德机械设备有限公司 | Lifting stabilizing device based on scissor crossing assembly |
| CN108240537A (en) * | 2016-12-23 | 2018-07-03 | 天津市纳斯特科技有限公司 | A kind of energy monitoring apparatus mobile device |
| CN110748765A (en) * | 2019-10-23 | 2020-02-04 | 浙江更土电子商务有限公司 | Dustproof height-adjustable's projecting apparatus |
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| DE20219100U1 (en) * | 2002-12-09 | 2003-04-17 | Schill Stahl Und Metallbau Gmb | Expanding scissors platform for a projector has base upper platform and expandable section |
| US20040123781A1 (en) * | 2002-12-30 | 2004-07-01 | D'agostino James | Pull down shelf for overhead storage |
| EP1918774A2 (en) * | 2006-10-05 | 2008-05-07 | Vision24 GmbH | Ceiling lift for a projector with extendable and retractable jointed rod system |
| CN201497851U (en) * | 2009-09-21 | 2010-06-02 | 昆明理工大学 | Tabletop height adjustment support saddle for projector |
| CN201594168U (en) * | 2009-12-03 | 2010-09-29 | 陈国华 | Automatic lifting device for projector |
| CN102298254A (en) * | 2011-08-16 | 2011-12-28 | 刘坎坎 | Concealed projector hanger |
| CN202486491U (en) * | 2011-11-04 | 2012-10-10 | 广州美视晶莹银幕有限公司 | Concealed electric projector suspension bracket |
| CN202486492U (en) * | 2011-11-04 | 2012-10-10 | 广州美视晶莹银幕有限公司 | Electric projector suspension bracket |
| CN203413307U (en) * | 2013-06-13 | 2014-01-29 | 张家港市莱特影视器材有限公司 | Electric lifting frame for projector |
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- 2013-06-13 CN CN2013102316216A patent/CN103343864A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2933198A (en) * | 1956-11-27 | 1960-04-19 | United Tool & Die Company | Adjustable positioning and supporting device |
| DE20219100U1 (en) * | 2002-12-09 | 2003-04-17 | Schill Stahl Und Metallbau Gmb | Expanding scissors platform for a projector has base upper platform and expandable section |
| US20040123781A1 (en) * | 2002-12-30 | 2004-07-01 | D'agostino James | Pull down shelf for overhead storage |
| EP1918774A2 (en) * | 2006-10-05 | 2008-05-07 | Vision24 GmbH | Ceiling lift for a projector with extendable and retractable jointed rod system |
| CN201497851U (en) * | 2009-09-21 | 2010-06-02 | 昆明理工大学 | Tabletop height adjustment support saddle for projector |
| CN201594168U (en) * | 2009-12-03 | 2010-09-29 | 陈国华 | Automatic lifting device for projector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986683A (en) * | 2015-07-28 | 2015-10-21 | 上海富朗德机械设备有限公司 | Lifting stabilizing device based on scissor crossing assembly |
| CN104986683B (en) * | 2015-07-28 | 2017-12-26 | 上海富朗德机械设备有限公司 | A kind of lifting stabilising arrangement based on scissors fork component |
| CN108240537A (en) * | 2016-12-23 | 2018-07-03 | 天津市纳斯特科技有限公司 | A kind of energy monitoring apparatus mobile device |
| CN110748765A (en) * | 2019-10-23 | 2020-02-04 | 浙江更土电子商务有限公司 | Dustproof height-adjustable's projecting apparatus |
| CN110748765B (en) * | 2019-10-23 | 2021-09-17 | 山东恒业似锦科技有限公司 | Dustproof height-adjustable's projecting apparatus |
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Application publication date: 20131009 |