CN203413307U - Electric lifting frame for projector - Google Patents
Electric lifting frame for projector Download PDFInfo
- Publication number
- CN203413307U CN203413307U CN201320335757.7U CN201320335757U CN203413307U CN 203413307 U CN203413307 U CN 203413307U CN 201320335757 U CN201320335757 U CN 201320335757U CN 203413307 U CN203413307 U CN 203413307U
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- China
- Prior art keywords
- scaffold
- rise
- withdraw fram
- scissors type
- hopper chute
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Abstract
The utility model discloses an electric lifting frame for a projector. The electric lifting frame is suspended under a ceiling. A telescopic frame is connected below an upper mounting frame; a lower mounting frame is connected below the telescopic frame; the upper mounting frame is provided with a first upper sliding chute, a second upper sliding chute and a third upper sliding chute; the lower mounting frame is provided with a first lower sliding chute, a second lower sliding chute and a third lower sliding chute; the telescopic frame comprises a first scissor fork type telescopic frame, a second scissor fork type telescopic frame and a third scissor fork type telescopic frame; one side of each of the upper and lower ends of the first, second and third scissor fork type telescopic frames is movably arranged in the first upper and lower sliding chutes, second upper and lower sliding chutes and third upper and lower sliding chutes respectively; the other side of each of the upper and lower ends of the first, second and third scissor fork type telescopic frames are hinged to the upper and lower mounting frames respectively. The upper end of a winding belt is fixedly arranged on the upper mounting frame, and the lower end of the winding belt is arranged on a winding driving device; the winding driving device is arranged on the lower mounting frame. The electric lifting frame for the projector with the structure has the advantages of stable and reliable operation, high safety and convenience in mounting and maintenance.
Description
Technical field
The utility model relates to a kind of projector lifting frame, particularly a kind of projector electric elevating rack being suspended under ceiling board.
Background technique
Projector has been widely used in meeting, the places such as teaching, in simple place, because personnel are fewer, the direct placement of projector can be met to usage requirement on the table, but for large-scale meeting room, the places such as classroom, because personnel are more, projector is placed and can be affected the drop shadow effect of projector on the table, now just need to adopt projector electric elevating rack that projector is hung and placed, the projector electric elevating rack adopting at present, its structure comprises the upper scaffold being fixedly mounted on ceiling board, below upper scaffold, rise-withdraw fram is installed, lower scaffold is installed below rise-withdraw fram, projector can be arranged on lower scaffold, the front and back position of upper scaffold offers respectively upper hopper chute, the front and back position of lower scaffold offers respectively the gliding groove corresponding with upper hopper chute, 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 scaffold, top opposite side is movably arranged in upper hopper chute, scissors type rise-withdraw fram bottom one side is hinged on lower scaffold, bottom opposite side is movably arranged in gliding groove, drive the drive unit of rise-withdraw fram lifting to be arranged in scaffold, when projector electric elevating rack is fixedly mounted on ceiling board, also drive unit is enclosed between ceiling board and upper scaffold simultaneously.
The major defect that the projector electric elevating rack of said structure exists is: in projector electric elevating rack lifting process, because a side of scissors type rise-withdraw fram upper/lower terminal is movable installation, opposite side is to be fixedly hinged, in running, inevitably can produce the destabilizing factor toward lopsidedness, lower scaffold easily shakes in lifting process, has affected safety and reliability; When projector electric elevating rack is installed, drive unit is enclosed in ceiling board and upper scaffold, inconvenience is installed, and when drive unit breaks down, whole the disassembling just of projector electric elevating rack can need to be overhauled, maintenance is inconvenient.
Model utility content
The technical problem of the required solution of the utility model is: a kind of stable and reliable operation, installation and maintenance projector electric elevating rack is easily provided.
For addressing the above problem, the technical solution adopted in the utility model is: described projector electric elevating rack, comprise scaffold, below upper scaffold, be connected with rise-withdraw fram, below rise-withdraw fram, be connected with lower scaffold, left side opening before upper scaffold is provided with the first upper hopper chute, and the left side opening after upper scaffold is provided with the second upper hopper chute, and the side on the upper scaffold left side offers the 3rd upper hopper chute; Left side opening before lower scaffold is provided with first gliding groove corresponding with the first upper hopper chute, left side opening after lower scaffold is provided with second gliding groove corresponding with the second upper hopper chute, offers three gliding groove corresponding with the 3rd upper hopper chute on the left side of lower 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 the first upper hopper chute and the first gliding groove, and can in the first upper hopper chute and the first gliding groove, slide respectively, the opposite side of the first scissors type rise-withdraw fram upper/lower terminal be hinged on respectively scaffold and lower scaffold before; One side of the second scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in the second upper hopper chute and the second gliding groove, and can in the second upper hopper chute and the second gliding groove, slide respectively, the opposite side of the second scissors type rise-withdraw fram upper/lower terminal be hinged on respectively scaffold and lower scaffold after; 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 respectively the left side of scaffold and lower scaffold; The upper end of rolling band is fixed on scaffold, and the lower end of rolling band is arranged on coiling drive unit, and coiling drive unit is arranged on lower scaffold, and rolling band can be reeled and discharge to coiling drive unit, thereby drives expansion bracket to carry out lifting.
Further, aforesaid projector electric elevating rack, 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 arranged in lower scaffold by a bearing support, head at tube shaped electric machine is provided with the controller of controlling electric machine rotation stroke, on the lower scaffold corresponding with the adjusting button of controller, offer two through holes, rolling band lower end is fixedly connected on motorized pulleys, when motorized pulleys rotate, rolling band is wound onto on motorized pulleys, or discharge from motorized pulleys, thereby drive rise-withdraw fram lifting.
Further, aforesaid projector electric elevating rack, wherein, the another kind of concrete structure of coiling drive unit comprises: cylinder, cylinder one end is provided with the controller of controlling electric machine rotation stroke, the cylinder the other end is arranged on bearing support, controller and bearing support are arranged in lower scaffold, on the lower scaffold corresponding with the adjusting button of controller, offer two through holes, rolling band lower end is fixedly connected on cylinder, at cylinder middle part, be provided with driven gear, driven gear is meshed with the driving gear being arranged on motor shaft, motor is arranged on lower scaffold, when cylinder rotates, rolling band is wound onto on cylinder, or discharge from cylinder, thereby drive rise-withdraw fram lifting.
Further, aforesaid projector electric elevating rack, wherein, is separately installed with several card wire clamps in the inner side of the first scissors type rise-withdraw fram, the second scissors type rise-withdraw fram and the 3rd scissors type rise-withdraw fram.
The beneficial effects of the utility model are: on the left side of upper scaffold and lower scaffold, are connected with the 3rd scissors type rise-withdraw fram, make the good stability of lower scaffold in running, in movement process, can not shake, and safe, reliable; In addition, coiling drive unit is arranged in lower scaffold, when coiling drive unit breaks down while needing repairing, does not need whole projector electric elevating rack just to disassemble and can directly keep in repair, the installation and maintenance of projector electric elevating rack are very convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of projector electric elevating rack described in the utility model.
Fig. 2 is the structural representation of left apparent direction in Fig. 1.
Fig. 3 is the structural representation of rear apparent direction in Fig. 1.
Fig. 4 is a kind of plan structure schematic diagram of drive unit.
Fig. 5 is the plan structure schematic diagram of another kind of drive unit.
Fig. 6 is the structural representation that in Fig. 5, A-A analyses and observe.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, technological scheme described in the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, projector electric elevating rack described in the utility model, comprise the upper scaffold 1 being fixedly mounted on ceiling board, below upper scaffold 1, be connected with rise-withdraw fram, below rise-withdraw fram, be connected with lower scaffold 2, at upper scaffold 1 left side opening above, be provided with the first upper hopper chute 111, at upper scaffold 1 left side opening below, be provided with the second upper hopper chute 112, the side on upper scaffold 1 left side offers the 3rd upper hopper chute 113; At lower scaffold 2 left side opening above, be provided with first gliding groove 21 corresponding with the first upper hopper chute 111, at lower scaffold 2 left side opening below, be provided with second gliding groove 22 corresponding with the second upper hopper chute 112, in the one end on the left side of lower scaffold 2, offer three gliding groove 23 corresponding with the 3rd upper hopper chute 113.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 upper end left side of the first scissors type rise-withdraw fram 31 is movably connected in the first upper hopper chute 111, and can be in the interior slip of the first upper hopper chute 111, the right side, upper end of the first scissors type rise-withdraw fram 31 is hinged on scaffold 1 right side above, the lower end left side of the first scissors type rise-withdraw fram 31 is movably connected in the first gliding groove 21, and can be in the interior slip of the first gliding groove 21, the right side, lower end of the first scissors type rise-withdraw fram 31 is hinged on lower scaffold 2 right side above; The upper end left side of the second scissors type rise-withdraw fram 32 is movably connected in the second upper hopper chute 112, and can be in the interior slip of the second upper hopper chute 112, the right side, upper end of the second scissors type rise-withdraw fram 32 is hinged on scaffold 1 right side below, the lower end left side of the second scissors type rise-withdraw fram 32 is movably connected in the second gliding groove 22, and can be in the interior slip of the second gliding groove 22, the right side, lower end of the second scissors type rise-withdraw fram 32 is hinged on lower scaffold 2 right side below; Upper end one side of the 3rd scissors type rise-withdraw fram 33 is movably connected in the 3rd upper hopper chute 113, and can be in the interior slip of the 3rd upper hopper chute 113, the upper end opposite side of the 3rd scissors type elevating 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, and can be in the interior slip of the 3rd gliding groove 23, the lower end opposite side of the 3rd scissors type rise-withdraw fram 33 is hinged on the opposite side on lower scaffold 2 left sides.In the inner side 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, be separately installed with several card wire clamps 4, 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 scaffold 1, and the lower end of rolling band 5 is arranged on coiling drive unit, and coiling drive unit is arranged on lower scaffold 2, and rolling band 5 can be reeled and discharge to coiling drive unit, thereby drives rise-withdraw fram to carry out lifting.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 one 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 arranged in lower scaffold 2 by a bearing support 7, in the head 12 of tube shaped electric machine, be provided with the controller of controlling electric machine rotation stroke, on the lower scaffold 2 corresponding with the adjusting button of controller, offer two through holes, in actual applications, can regulate button by through hole, controller is regulated, to control the rotational travel of tube shaped electric machine, thereby control the stroke of rolling band 5.The lower end that has two rolling bands 5 in the present embodiment is fixedly connected on motorized pulleys 61, and when motorized pulleys 61 rotate, rolling band 5 is wound onto on motorized pulleys 61 or from motorized pulleys 61 and discharges, thereby drives rise-withdraw fram lifting.
As Fig. 5 has provided the structural representation of another kind of coiling drive unit, the another kind of concrete structure of coiling drive unit comprises: cylinder 62, cylinder 62 one end are provided with the controller 8 of controlling electric machine rotation stroke, cylinder 62 the other ends are arranged on bearing support 7, controller 8 and bearing support 7 are arranged in lower scaffold 2, as shown in Figure 6, on the lower scaffold corresponding with the adjusting button of controller 8, offer two through holes 24, can regulate button by through hole 24, controller 8 is regulated, to control the rotational travel of motor 11, thereby control the stroke of rolling band 5.The lower end that has two rolling bands 5 in the present embodiment is fixedly connected on cylinder 62, at cylinder 62 middle parts, be provided with driven gear 9, driven gear 9 is meshed with the driving gear 10 being arranged on motor 11 axles, motor is arranged on lower scaffold 2, the power of motor 11 is meshed and is delivered on cylinder 62 by gear, when cylinder 62 rotates, rolling band 5 is wound onto on cylinder 62 or from cylinder 62 and discharges, thereby drives rise-withdraw fram lifting.
The projector electric elevating rack of said structure, is connected with the 3rd scissors type rise-withdraw fram 33 on upper scaffold 1 and the left side of lower scaffold 2, makes the good stability of lower scaffold in running, in movement process, can not shake, safe, reliable; In addition, coiling drive unit is arranged in lower scaffold 2, when coiling drive unit breaks down while needing repairing, does not need whole projector electric elevating rack just to disassemble and can directly keep in repair, the installation and maintenance of projector electric elevating rack are very convenient.
Claims (4)
1. projector electric elevating rack, comprise scaffold, below upper scaffold, be connected with rise-withdraw fram, below rise-withdraw fram, be connected with lower scaffold, it is characterized in that: the left side opening before upper scaffold is provided with the first upper hopper chute, left side opening after upper scaffold is provided with the second upper hopper chute, and the side on the upper scaffold left side offers the 3rd upper hopper chute; Left side opening before lower scaffold is provided with first gliding groove corresponding with the first upper hopper chute, left side opening after lower scaffold is provided with second gliding groove corresponding with the second upper hopper chute, offers three gliding groove corresponding with the 3rd upper hopper chute on the left side of lower 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 the first upper hopper chute and the first gliding groove, and can in the first upper hopper chute and the first gliding groove, slide respectively, the opposite side of the first scissors type rise-withdraw fram upper/lower terminal be hinged on respectively scaffold and lower scaffold before; One side of the second scissors type rise-withdraw fram upper/lower terminal is movably arranged on respectively in the second upper hopper chute and the second gliding groove, and can in the second upper hopper chute and the second gliding groove, slide respectively, the opposite side of the second scissors type rise-withdraw fram upper/lower terminal be hinged on respectively scaffold and lower scaffold after; 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 respectively the left side of scaffold and lower scaffold; The upper end of rolling band is fixed on scaffold, and the lower end of rolling band is arranged on coiling drive unit, and coiling drive unit is arranged on lower scaffold, and rolling band can be reeled and discharge to coiling drive unit, thereby drives expansion bracket to carry out lifting.
2. according to projector electric elevating rack claimed in claim 1, 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 arranged in lower scaffold by a bearing support, head at tube shaped electric machine is provided with the controller of controlling electric machine rotation stroke, on the lower scaffold corresponding with the adjusting button of controller, offer two through holes, rolling band lower end is fixedly connected on motorized pulleys, when motorized pulleys rotate, rolling band is wound onto on motorized pulleys, or discharge from motorized pulleys, thereby drive rise-withdraw fram lifting.
3. according to projector electric elevating rack claimed in claim 1, it is characterized in that: the another kind of concrete structure of coiling drive unit comprises: cylinder, cylinder one end is provided with the controller of controlling electric machine rotation stroke, the cylinder the other end is arranged on bearing support, controller and bearing support are arranged in lower scaffold, on the lower scaffold corresponding with the adjusting button of controller, offer two through holes, rolling band lower end is fixedly connected on cylinder, at cylinder middle part, be provided with driven gear, driven gear is meshed with the driving gear being arranged on motor shaft, motor is arranged on lower scaffold, when cylinder rotates, rolling band is wound onto on cylinder, or discharge from cylinder, thereby drive rise-withdraw fram lifting.
4. according to the projector electric elevating rack described in claim 1 or 2 or 3, it is characterized in that: in the inner side of the first scissors type rise-withdraw fram, the second scissors type rise-withdraw fram and the 3rd scissors type rise-withdraw fram, be separately installed with several card wire clamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320335757.7U CN203413307U (en) | 2013-06-13 | 2013-06-13 | Electric lifting frame for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320335757.7U CN203413307U (en) | 2013-06-13 | 2013-06-13 | Electric lifting frame for projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413307U true CN203413307U (en) | 2014-01-29 |
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ID=49976195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320335757.7U Expired - Fee Related CN203413307U (en) | 2013-06-13 | 2013-06-13 | Electric lifting frame for projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203413307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343864A (en) * | 2013-06-13 | 2013-10-09 | 张家港市莱特影视器材有限公司 | Projector power-driven lifting frame |
-
2013
- 2013-06-13 CN CN201320335757.7U patent/CN203413307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343864A (en) * | 2013-06-13 | 2013-10-09 | 张家港市莱特影视器材有限公司 | Projector power-driven lifting frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20210613 |