CN208705654U - A kind of curtain last volume automatic open/closing device - Google Patents
A kind of curtain last volume automatic open/closing device Download PDFInfo
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- CN208705654U CN208705654U CN201821360328.4U CN201821360328U CN208705654U CN 208705654 U CN208705654 U CN 208705654U CN 201821360328 U CN201821360328 U CN 201821360328U CN 208705654 U CN208705654 U CN 208705654U
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- curtain
- truss
- closing device
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- transmission mechanism
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Abstract
A kind of curtain last volume automatic open/closing device, it includes truss, curtain, lower axle, transmission mechanism and hoisting mechanism, the truss is fixed on the ceiling or on wall, described curtain one end is fixed on truss, the other end is fixedly connected with lower axle, and the transmission mechanism is arranged on truss, and transmission mechanism and hoisting mechanism are drivingly connected, and the transmission mechanism drives curtain to intervolve from bottom to top to truss using lower axle as shaft by driving hoisting mechanism, realizes the retractable operation of curtain.The curtain of the present apparatus is underwind folding, takes full advantage of the gravity of curtain and lower axle, and low to the intensity requirement of shaft, structure is simple, and curtain is avoided corrugated and edge-curl phenomenon occur, and curtain is made to keep preferable flatness.
Description
Technical field
The utility model relates to projection screen field more particularly to a kind of curtain last volume automatic open/closing devices.
Background technique
Projection screen is one of product most-often used in projector's peripheral equipment, and projection screen is the abbreviation of projection screen, main
If being used in film, office, home theater, in convention occasion, for showing the tool of image, video file.Projection screen
It generally can be divided into reflective, two class of transmission-type；Reflective to throw for positive, transmission-type is used for rear-projection；Front projection curtain be divided into again plane screen,
Arc screen；Plane screen can be divided into glass bead screen, metal curtain, embossing plastics curtain, elastic curtain etc. from quality, and (embossing plastics are divided into white
Modeling, ash modeling, silver modeling etc.).
Prior art discloses a kind of projection curtain device, (application number: 201621247001.7), which is disclosed
A kind of projection curtain device, including cloth box and curtain are received, the tray interior lower end for receiving cloth box is equipped with the first strip shape gob, institute
It states and receives the side of cloth box tray interior lower end and be equipped with either-rotation motor, the front side of the either-rotation motor is equipped with first support, and described the
The bottom end of one bracket is fixedly connected on the tray interior lower end for receiving cloth box, and the upper end of the first support connects second bearing, institute
The output shaft for stating either-rotation motor passes through second bearing and is connected with one end of the second shaft by shaft coupling, second shaft it is another
One end is equipped with 3rd bearing, and 3rd bearing lower end connects second support, and second support is fixedly connected on the tray interior for receiving cloth box
Lower end, which can make curtain keep preferable flatness, and be unlikely to deform fold, can clear up automatically in use
Dust on curtain, the design of curtain material, vision caused by external ambient light is interfered when viewing can be effectively reduced.
But traditional electric screen is similar with the patent, is all the structure using overwind, that is to say, that pass through motor
Rotation, by curtain volume be located at upper end shaft on, for the electric screen of this class formation for the more demanding of shaft, structure is opposite
Complexity, and it is only suitable for that dimension volume is smaller, curtain of lighter in weight, flatness is poor, there is obvious corrugated and edge-curl phenomenon.
Summary of the invention
Shortcoming present in view of the above technology, the purpose of the utility model is to provide a kind of curtain last volumes to open automatically
It attaches together and sets, the curtain of the device is underwind folding, and low to the intensity requirement of shaft, structure is simple, and curtain is avoided wave occur
Line shape and edge-curl phenomenon make curtain keep preferable flatness.
To achieve the above object, the utility model is realized in this way:
A kind of curtain last volume automatic open/closing device comprising truss, curtain, lower axle, transmission mechanism and hoisting mechanism, it is described
Truss is fixed on the ceiling or on wall, and described curtain one end is fixed on truss, and the other end is fixedly connected with lower axle, the biography
Motivation structure is arranged on truss, and transmission mechanism and hoisting mechanism are drivingly connected, and the transmission mechanism passes through driving hoisting mechanism
It drives curtain to intervolve from bottom to top to truss using lower axle as shaft, realizes the retractable operation of curtain.The present apparatus takes full advantage of
The gravity of curtain and lower axle, the setting of the hoisting mechanism drive curtain to intervolve from bottom to top to truss, reduce to shaft
Intensity requirement, lower axle as shaft use, in curtain when packing up or opening, curtain can be tightened because of the weight of lower axle,
The gravity of curtain itself is also advantageous that in the smooth of curtain, and curtain is avoided corrugated and edge-curl phenomenon occur.
Further, the hoisting mechanism includes active wheeled steel, driven wheeled steel and steel band, and the active wheeled steel is fixed
On truss, the driven wheeled steel is fixed in lower axle, and active wheeled steel, driven wheeled steel are drivingly connected by the steel band,
And then curtain is driven to intervolve from bottom to top to truss.The pulling force collective effect of curtain and steel band is in lower axle, and active force
It is contrary, under the gravity of lower axle, packing up and opening for curtain is realized by the positive and negative rotation of active wheeled steel；By
There is lifting for curtain always in lower axle, so underwind structure is not high to the intensity requirement of shaft.
Further, the transmission mechanism includes motor, gear and transmission shaft, and the motor and gear are drivingly connected, described
Gear is fixed on transmission shaft, and the active wheeled steel is fixed on transmission shaft, and the positive and negative rotation of transmission shaft drives
Active wheeled steel and driven wheeled steel positive and negative rotation, and then control packing up and opening for curtain.When motor-driven gear rotation,
The gear drives transmission shaft rotation, and transmission shaft rotation drives active wheeled steel to rotate again, and active wheeled steel passes through steel strip driving
The rotation of driven wheeled steel, so drive lower axle rotation, realize curtain pack up and opening operation；Its connection procedure is simple,
It easily realizes, and its structure is simple, failure rate is low.
Further, the transmission mechanism further includes gearbox, and the gearbox is fixed on truss, the gearbox
It is drivingly connected, the revolving speed and torque that motor is needed by gearbox output, and is sent on gear with motor, gear.The change
The setting of fast case, thus it is possible to vary the revolving speed and torque of motor output avoid so that packing up for curtain will not be too urgent with flaring operation
There is folding line in wrapup procedure in curtain, damages curtain, while not influencing the service life of the present apparatus.
Further, the transmission mechanism further includes a plurality of bearings and a plurality of bearing blocks, and the bearing is arranged in bearing
In seat, and the bearing is socketed on transmission shaft, and the bearing is flexibly connected with transmission shaft, the bearing block and the fixed company of truss
It connects.Transmission shaft is fixed on truss by bearing and bearing block, so that the mounting means of transmission shaft is more stable, utilizes bearing
It is flexibly connected with transmission shaft, transmission shaft can be supported, reduce the coefficient of friction in its motion process, and guarantee its rotating accuracy.
Further, the transmission mechanism further includes drive shaft engagement member, by drive shaft engagement member by two transmission shafts
One end is socketed and is fixed together, and is suitable for larger-size curtain.
Further, the cavity for accommodating curtain is provided with below the truss, so that curtain after intervolving, can be accommodated in
In truss.It is provided with the cavity for accommodating curtain below truss, curtain can be made to be accommodated in when idle wherein, avoid dust
Etc curtain is polluted.
Further, the present apparatus further includes remote controler, can control the lifting of curtain by remote controler, and remote control mode is
RF remote-controlled or wireless flat or central control system.RF remote-controlled or wireless flat or central control system are the prior art, can be passed through
A variety of remote control modes controls packing up and opening for curtain, simple and convenient, meets the diverse requirements of client.
The advantage of the utility model is, the curtain of the present apparatus is underwind folding, takes full advantage of curtain and lower axle
Gravity, low to the intensity requirement of shaft, structure is simple, and curtain is avoided corrugated and edge-curl phenomenon occur, make curtain keep compared with
Good flatness.
Detailed description of the invention
Fig. 1 is the present embodiment structural schematic diagram.
Fig. 2 is embodiment transmission mechanism partial enlarged view.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment: referring to Fig.1, Fig. 2.
A kind of curtain last volume automatic open/closing device comprising truss 1, curtain 2, lower axle 3, transmission mechanism 4 and hoisting mechanism
5, truss 1 is fixed, and 2 one end of curtain is fixed on truss 1, and the other end is fixedly connected with lower axle 3 on the ceiling or on wall, transmission
Mechanism 4 is arranged on truss 1, and transmission mechanism 4 and hoisting mechanism 5 are drivingly connected, and transmission mechanism 4 passes through driving hoisting mechanism 5
It drives curtain 2 to be intervolved to truss 1 from bottom to top with lower axle 3 for shaft, realizes the retractable operation of curtain 2.The present apparatus is sufficiently sharp
With the gravity of curtain 2 and lower axle 3, the setting of hoisting mechanism 5 drives curtain 2 to be intervolved to truss 1 from bottom to top, reduces
To the intensity requirement of shaft, lower axle 3 is used as shaft, in curtain 2 when packing up or opening, curtain 2 can be because of the weight of lower axle 3
It measures and tightens, the gravity of curtain 2 itself is also advantageous that in the smooth of curtain 2, and curtain 2 is avoided corrugated and edge-curl phenomenon occur.
In the present embodiment, hoisting mechanism 5 includes active wheeled steel 51, driven wheeled steel 52 and steel band 53, active steel band
Wheel 51 is fixed on truss 1, and driven wheeled steel 52 is fixed in lower axle 3, and steel band 53 is by active wheeled steel 51, driven wheeled steel 52
It is drivingly connected, and then curtain 2 is driven to be intervolved to truss 1 from bottom to top.The pulling force collective effect of curtain 2 and steel band 53 is in lower axle
On 3, and active force is contrary, under the gravity of lower axle 3, realizes curtain by the positive and negative rotation of active wheeled steel 51
Cloth 2 being packed up and opening；Since lower axle 3 has lifting for curtain 2 always, thus underwind structure to the intensity requirement of shaft not
It is high.
In the present embodiment, transmission mechanism 4 includes motor 41, gear 42 and transmission shaft 43, and motor 41 and gear 42 drive
Connection, gear 42 are fixed on transmission shaft 43, and active wheeled steel 51 is fixed on transmission shaft 43, and transmission shaft 43 is just
Reverse turn drives active wheeled steel 51 and driven 52 positive and negative rotation of wheeled steel, and then controls packing up and opening for curtain 2.Work as motor
When 41 driving gears 42 rotate, gear 42 drives transmission shaft 43 to rotate, and the rotation of transmission shaft 43 drives active wheeled steel 51 to rotate again,
Active wheeled steel 51 drives the rotation of driven wheeled steel 52 by steel band 53, and then drives the rotation of lower axle 3, realizes curtain 2
It packs up and opening operation；Its connection procedure is simple, Yi Shixian, and its structure is simple, and failure rate is low.
In the present embodiment, transmission mechanism 4 further includes gearbox 44, and gearbox 44 is fixed on truss 1, gearbox
44 are drivingly connected with motor 41, gear 42, the revolving speed and torque that motor 41 is needed by the output of gearbox 44, and are sent to gear
On 42.The setting of gearbox 44, thus it is possible to vary motor 41 export revolving speed and torque so that curtain 2 pack up and flaring operation
Will not be too urgent, it avoids curtain 2 from occurring folding line in wrapup procedure, damages curtain 2, while not influencing the service life of the present apparatus.
In the present embodiment, transmission mechanism 4 further includes a plurality of bearings 45 and a plurality of bearing blocks 46, and the setting of bearing 45 exists
In bearing block 46, and bearing 45 is socketed on transmission shaft 43, and bearing 45 is flexibly connected with transmission shaft 43, bearing block 46 and truss 1
It is fixedly connected.Transmission shaft 43 is fixed on truss 1 by bearing 45 and bearing block 46, so that the mounting means of transmission shaft 43 is more
Add stabilization, is flexibly connected using bearing 45 with transmission shaft 43, transmission shaft 43 can be supported, reduce the friction system in its motion process
Number, and guarantee its rotating accuracy.
In the present embodiment, transmission mechanism 4 further includes drive shaft engagement member 47, is passed two by drive shaft engagement member 47
One end of moving axis 43 is socketed and is fixed together, and is suitable for larger-size curtain 2.
In the present embodiment, the lower section of truss 1 is provided with the cavity (not shown) for accommodating curtain 2, so that curtain 2 is intervolving
Afterwards, it can be accommodated in truss 1.The lower section of truss 1 is provided with the cavity for accommodating curtain 2, can make receipts when idle of curtain 2
It is contained in wherein, avoids the polluting curtain 2 of dust etc.
In the present embodiment, the present apparatus further includes remote controler (not shown), can control the liter of curtain 2 by remote controler
Drop, remote control mode are RF remote-controlled or wireless flat or central control system.RF remote-controlled or wireless flat or central control system are existing
There is technology, packing up and opening for curtain 2 can be controlled by a variety of remote control modes, it is simple and convenient, meet the more of client
Sample demand.
The advantage of the utility model is, the curtain of the present apparatus is underwind folding, takes full advantage of curtain and lower axle
Gravity, low to the intensity requirement of shaft, structure is simple, and curtain is avoided corrugated and edge-curl phenomenon occur, make curtain keep compared with
Good flatness.
It is above the utility model preferred embodiment, but the utility model is not limited to this, any this field
Technical staff can think variation should all fall into the protection scope of the utility model.
Claims (8)
1. a kind of curtain last volume automatic open/closing device, it is characterised in that it includes truss, curtain, lower axle, transmission mechanism and promotion
Mechanism, the truss is fixed, and described curtain one end is fixed on truss on the ceiling or on wall, the other end and the fixed company of lower axle
It connects, the transmission mechanism is arranged on truss, and transmission mechanism and hoisting mechanism are drivingly connected, and the transmission mechanism passes through driving
Hoisting mechanism drives curtain to intervolve from bottom to top to truss using lower axle as shaft, realizes the retractable operation of curtain.
2. a kind of curtain last volume automatic open/closing device according to claim 1, it is characterised in that the hoisting mechanism includes
Active wheeled steel, driven wheeled steel and steel band, the active wheeled steel are fixed on truss, and the driven wheeled steel is fixed on down
On axis, active wheeled steel, driven wheeled steel are drivingly connected by the steel band, and then curtain is driven to be intervolved from bottom to top to truss
It is interior.
3. a kind of curtain last volume automatic open/closing device according to claim 2, it is characterised in that the transmission mechanism includes
Motor, gear and transmission shaft, the motor and gear are drivingly connected, and the gear is fixed on transmission shaft, the active
Wheeled steel is fixed on transmission shaft, and the positive and negative rotation of transmission shaft drives active wheeled steel and driven wheeled steel positive and negative rotation,
And then control packing up and opening for curtain.
4. a kind of curtain last volume automatic open/closing device according to claim 3, it is characterised in that the transmission mechanism also wraps
Gearbox is included, the gearbox is fixed on truss, and the gearbox and motor, gear are drivingly connected, and motor passes through change
The revolving speed and torque that fast case output needs, and be sent on gear.
5. a kind of curtain last volume automatic open/closing device according to claim 3, it is characterised in that the transmission mechanism also wraps
A plurality of bearings and a plurality of bearing blocks are included, the bearing is arranged in bearing block, and the bearing is socketed on transmission shaft, institute
It states bearing to be flexibly connected with transmission shaft, the bearing block is fixedly connected with truss.
6. a kind of curtain last volume automatic open/closing device according to claim 3, it is characterised in that the transmission mechanism also wraps
Drive shaft engagement member is included, one end of two transmission shafts is socketed and is fixed together by drive shaft engagement member, is suitable for size
Biggish curtain.
7. a kind of curtain last volume automatic open/closing device according to claim 1, it is characterised in that set below the truss
It is equipped with the cavity for accommodating curtain, so that curtain after intervolving, can be accommodated in truss.
8. a kind of curtain last volume automatic open/closing device according to claim 1, it is characterised in that a kind of curtain last volume
Automatic open/closing device further includes remote controler, can control the lifting of curtain by remote controler, remote control mode be it is RF remote-controlled or
Wireless flat or central control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821360328.4U CN208705654U (en) | 2018-08-22 | 2018-08-22 | A kind of curtain last volume automatic open/closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821360328.4U CN208705654U (en) | 2018-08-22 | 2018-08-22 | A kind of curtain last volume automatic open/closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208705654U true CN208705654U (en) | 2019-04-05 |
Family
ID=65943964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821360328.4U Active CN208705654U (en) | 2018-08-22 | 2018-08-22 | A kind of curtain last volume automatic open/closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208705654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376838A (en) * | 2019-08-02 | 2019-10-25 | 江苏久誉显示科技有限公司 | A kind of horizontal folding electric screen |
-
2018
- 2018-08-22 CN CN201821360328.4U patent/CN208705654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376838A (en) * | 2019-08-02 | 2019-10-25 | 江苏久誉显示科技有限公司 | A kind of horizontal folding electric screen |
| CN110376838B (en) * | 2019-08-02 | 2024-01-05 | 江苏久誉显示科技有限公司 | Electric curtain capable of being opened and closed horizontally |
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