CN110772812A - Composite theater stage - Google Patents
Composite theater stage Download PDFInfo
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- CN110772812A CN110772812A CN201911283670.8A CN201911283670A CN110772812A CN 110772812 A CN110772812 A CN 110772812A CN 201911283670 A CN201911283670 A CN 201911283670A CN 110772812 A CN110772812 A CN 110772812A
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- film frame
- platform
- stage
- driving mechanism
- performance platform
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
- A63J1/00—Stage arrangements
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
- A63J5/00—Auxiliaries for producing special effects on stages, or in circuses or arenas
- A63J5/02—Arrangements for making stage effects; Auxiliary stage appliances
- A63J5/021—Mixing live action with images projected on translucent screens
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Abstract
The invention discloses a composite theater stage, which comprises a performance platform (1), a film frame (2) arranged above the performance platform (1), two guide rails (3) respectively positioned at two sides of the stage, two sliding blocks (4) which correspond to the guide rails (3) one by one and are in guiding fit, and a first driving mechanism and a second driving mechanism, wherein the two sliding blocks (4) are respectively and rotatably arranged at the upper ends of two sides of the film frame (2); when the virtual image (a) needs to be put in, the lower end of the film frame (2) is connected on the performance platform (1); when the complete performance platform (1) needs to be used, the lower end of the first driving mechanism driving film frame (2) rises around the sliding block (4), the upper end of the second driving mechanism driving film frame (2) rises along the guide rail (3), and the upper end and the lower end of the film frame (2) are far away from the performance platform (1). Compared with the prior art, the composite theater stage has sufficient stage height.
Description
Technical Field
The invention relates to the technical field of Augmented Reality (AR), in particular to a composite theater stage.
Background
Currently, Augmented Reality (AR) technology can give the audience a strong sense of interactive participation. Has become a more heavily weighted and rapidly growing industry in the world's industry. Augmented reality generates virtual objects which do not exist in a real environment by means of a computer graphics technology and a visualization technology, accurately places the virtual objects in the real environment, integrates the virtual objects with the real environment by means of display equipment, and presents a new environment with real sensory effect to a user. The method has the characteristics of virtual-real combination, real-time interaction and three-dimensional registration.
As shown in fig. 1, a composite theater stage with a platform + function disclosed in patent invention with patent application No. CN201910052598.1 (publication No. CN109529379A) comprises a performance platform 1 and a film frame 2 disposed on the performance platform 1, wherein an imaging film capable of projecting a virtual image a on the performance platform is mounted on the film frame 2, the upper end of the film frame 2 is hinged to the wall surface on both sides of the stage, the film frame 2 is driven by a driving mechanism to swing up and down with the hinged position of the upper end as an axis, when the virtual image a needs to be projected, the driving mechanism drives the film frame 2 to descend, the lower end of the film frame 2 is connected to the performance platform 1, the film frame 2 is in an inclined use state, and at this time, the composite theater stage can realize an augmented reality function; when the complete performance platform 1 needs to be used, the driving mechanism drives the film frame 2 to ascend, the lower end of the film frame 2 is upwards far away from the performance platform 1, the film frame 2 is in a retracted state, and the composite theater stage can be used as a common platform.
However, in the above scheme, when the theater stage is used as a common platform, the film frame is fixed, and therefore a large amount of space of the stage in the height direction is occupied, and the height of the stage is not enough.
Disclosure of Invention
The invention aims to solve the technical problem of providing a composite theater stage with sufficient stage height aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a composite theater stage comprises
A performance platform; and
the film frame is arranged above the performance platform and can put a virtual image on the performance platform;
the method is characterized in that: also comprises
Two guide rails which are basically vertically arranged are respectively positioned at two sides of the stage;
the two sliding blocks correspond to the guide rails one by one and are in guide fit with the guide rails and are respectively and rotatably arranged at the upper end positions of the two sides of the film frame;
the first driving mechanism can drive the lower end of the film frame to rotate around the sliding block; and
the second driving mechanism can drive the upper end of the film frame to slide up and down along the guide rail;
when a virtual image needs to be put in, the lower end of the film frame is connected on the performance platform, and the film frame is in an inclined use state;
when needs use complete performance platform, the lower extreme of first actuating mechanism drive membrane frame rises around the slider, and the upper end of second actuating mechanism drive membrane frame rises along the guide rail, and the performance platform is all kept away from to the upper end and the lower extreme of membrane frame, and the membrane frame is in the state of packing up.
In order to avoid the slider breaking away from the guide rail in the sliding process, the upper end and the lower end of the guide rail 3 are provided with limiting blocks for limiting the slider.
In order to ensure that the lower end of the film frame automatically stops moving after rising and falling in place and is convenient to adjust, the bottom and the front side of the stage are respectively provided with a first lower limit switch and a first upper limit switch;
the lower end of the film frame is in contact with the first lower limit switch after descending to the proper position so as to control the first driving mechanism to stop driving;
and the lower end of the film frame touches the first upper limit switch after rising to the right position so as to control the first driving mechanism to stop driving.
In order to ensure that the upper end of the membrane frame automatically stops moving after ascending and descending in place and is convenient to adjust, a convex block is convexly arranged on the outer peripheral wall of the sliding block, and a second lower limit switch and a second upper limit switch are respectively arranged at the lower end and the upper end of the guide rail;
the bump touches a second lower limit switch after falling to the right position to control a second driving mechanism to stop driving;
and the bump touches a second upper limit switch after rising to the right position so as to control the second driving mechanism to stop driving.
In order to facilitate the connection between the membrane frame and the performance platform in a use state and not influence the function of the performance platform as a common platform, an accommodating cavity with an opening at the top is formed in the position, close to the front side, of the performance platform, and a front overturning platform capable of opening and closing the front part of the opening and a rear overturning platform capable of opening and closing the rear part of the opening are arranged in the accommodating cavity;
when the film frame is in a use state, the front overturning platform is closed, the rear overturning platform is opened, and the lower end of the film frame penetrates through the rear part of the opening and is inserted into the accommodating cavity;
when the film frame is in a retracted state, the front overturning platform is closed, and the rear overturning platform is closed to form a complete performance platform.
In order to achieve automatic opening and closing of the front and rear flipping platforms,
the front overturning platform comprises
The first base is arranged on the front side of the accommodating cavity;
the first turning plate is rotatably connected to the top of the first base; and
two ends of the first electric push rod are respectively and rotatably connected to the bottom of the first base and the bottom surface of the first turning plate;
the rear overturning platform comprises
The second base is arranged at the rear side of the accommodating cavity;
the second turning plate is rotatably connected to the top of the second base; and
and two ends of the second electric push rod are respectively and rotatably connected to the bottom of the second base and the bottom surface of the second turning plate.
In order to drive the film frame conveniently, the first driving mechanism and the second driving mechanism are both hoisting and lifting mechanisms. The driving mechanism has various arrangement modes, and a screw rod lifting mechanism and the like can be adopted to achieve the same purpose.
In particular, the amount of the solvent to be used,
the first driving mechanism comprises
The first pulley is arranged above the performance platform;
the first winding device is arranged on one side of the performance platform; and
first stay cord, first end are connected on first coiling mechanism, and the second end is connected in one side of membrane frame lower extreme after around first pulley.
The second driving mechanism comprises
The second pulley is arranged above the performance platform;
the second hoisting device is arranged on one side of the performance platform; and
and the first end of the second pull rope is connected to the second hoisting device, and the second end of the second pull rope is connected to one side of the upper end of the film frame after bypassing the second pulley.
In order to ensure the safety of the stage, the composite theater stage also comprises
The first auxiliary tensioning structure can perform auxiliary tensioning on the lower end of the film frame when the film frame is in a retracted state; and
and the second auxiliary tensioning structure can assist in tensioning the upper end of the film frame when the film frame is in a retracted state.
In particular, the amount of the solvent to be used,
the first auxiliary tensioning structure comprises
The third pulley is arranged above the performance platform; and
a first end of the third pull rope is connected to one side of the stage, and a second end of the third pull rope is connected to one side of the lower end of the film frame after passing around the third pulley;
the second auxiliary tensioning structure comprises
The fourth pulley is arranged above the performance platform; and
and the first end of the fourth pull rope is connected to one side of the stage, and the second end of the fourth pull rope is connected to one side of the upper end of the film frame after bypassing the fourth pulley.
Compared with the prior art, the invention has the advantages that: through the guide matching of the guide rails positioned on the two sides of the stage and the slide blocks rotatably connected to the two sides of the film frame, when a virtual image needs to be put in, the lower end of the film frame is connected to the performance platform, the film frame is in an inclined use state, and at the moment, the composite theater stage can realize the augmented reality function; when needs use complete performance platform, the lower extreme of first actuating mechanism drive membrane frame rises around the slider, and the upper end of second actuating mechanism drive membrane frame rises along the guide rail, and the performance platform is all kept away from to the upper end and the lower extreme of membrane frame, and the membrane frame is in the state of packing up, and compound theater stage can be used as ordinary platform this moment and use, and the stage height is sufficient, has further enlarged ordinary platform's application scope.
Drawings
Fig. 1 is a schematic structural diagram of a composite stage in the background art of the present invention;
fig. 2 is a schematic structural view of the composite theater stage according to the embodiment of the invention (the film frame is in use);
fig. 3 is a schematic structural view of the composite theater stage according to the embodiment of the invention (the film frame is in a retracted state);
FIG. 4 is an enlarged view of the guide rail, slider, second lower limit switch and second upper limit switch of FIG. 2;
fig. 5 is a schematic structural view of a front turning platform in a closed state according to an embodiment of the composite theater stage of the invention;
fig. 6 is a schematic structural view of a front turning platform in an open state according to an embodiment of the composite theater stage of the invention;
fig. 7 is a schematic structural view of the rear turning platform in an open state and the second turning plate turned down in the embodiment of the composite theater stage of the invention;
fig. 8 is a schematic structural view of the rear turning platform in an open state and the second turning plate turned up in the embodiment of the composite theater stage of the invention;
fig. 9 is a schematic structural view of the rear turning platform in the closed state in the embodiment of the composite theater stage of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 9, a preferred embodiment of the composite theater stage according to the invention is shown. The composite theater stage comprises a performance platform 1, a film frame 2, a guide rail 3, a slide block 4, a first driving mechanism, a second driving mechanism, a limiting assembly, a first auxiliary tensioning structure and a second auxiliary tensioning structure.
Wherein, performance platform 1 has been offered near the position department of front side that the top has the open-ended and holds chamber 11, should hold and be provided with in the chamber 11 and open and close and hold 11 anterior preceding upset platform 12 of chamber opening and can open and close and hold the back upset platform 13 at 11 open-ended rear portions in chamber, is equipped with mount pad 14 between preceding upset platform 12 and the back upset platform 13, and this mount pad 14 has an inclined plane, and the angle on this inclined plane satisfies: when the film frame 2 is in a use state described below, the rear side surface of the film frame 2 abuts against the inclined surface.
The front tilting platform 12 includes a first base 121, a first tilting plate 122 and a first electric push rod 123. Specifically, the first base 121 is provided on the front side of the accommodation chamber 11; the first turning plate 122 is rotatably connected to the top of the first base 121; two ends of the first electric push rod 123 are respectively and rotatably connected to the bottom of the first base 121 and the bottom surface of the first turning plate 122. The first flap 122 can be turned relative to the first base 121 by the telescopic movement of the first electric push rod 123.
The rear tilting platform 13 comprises a second base 131, a second tilting plate 132 and a second electric push rod 133. Specifically, the second base 131 is provided at the rear side of the accommodation chamber 11; the second flap 132 is rotatably connected to the top of the second base 131; two ends of the second electric push rod 133 are respectively and rotatably connected to the bottom of the second base 131 and the bottom surface of the second flap 132. The second plate 132 is turned over with respect to the second base 131 by the telescopic movement of the second electric push rod 133.
The film frame 2 is arranged above the performance platform 1, and an imaging film capable of putting a virtual image a on the performance platform 1 is installed on the film frame 2.
The number of the guide rails 3 is two, the guide rails are basically vertically arranged and are respectively positioned on two sides of the stage, and the upper end and the lower end of each guide rail 3 are provided with limiting blocks 31 used for limiting the following sliding blocks 4.
The quantity of slider 4 is two, with guide rail 3 one-to-one and direction cooperation, two sliders 4 rotate respectively and install the upper end position department in membrane frame 2 both sides, and the periphery wall epirelief of slider 4 is equipped with lug 41.
The first driving mechanism includes a first pulley 51, a first winding device 52, and a first rope 53. Specifically, the number of the first pulleys 51 is two, and the first pulleys are arranged on two sides above the performance platform 1; the first winding device 52 is arranged at one side of the performance platform 1; the number of the first pull ropes 53 is two, a first end of one of the first pull ropes is connected to the first winding device 52, a second end of the one of the first pull ropes is connected to one side of the lower end of the film frame 2 after passing around the first pulley 51 on the same side as the first winding device 52, a first end of the other one of the first pull ropes is connected to the first winding device 52, and a second end of the one of the first pull ropes is connected to the other side of the lower end of the film frame 2 after passing around the first. The lower end of the film frame 2 can be driven to rotate around the slide block 4 by winding and unwinding the first pull rope 53 through the first winding device 52.
The second driving mechanism includes a second pulley 61, a second winding device 62, and a second rope 63. Specifically, the number of the second pulleys 61 is two, and the second pulleys are arranged on two sides above the performance platform 1; the second hoisting device 62 is arranged at one side of the performance platform 1; the number of the second pull ropes 63 is two, one of the second pull ropes is connected to the second winding device 62 at a first end, the second end of the second pull rope is connected to one side of the upper end of the film frame 2 after passing around the second pulley 61 on the same side as the second winding device 62, the other first end of the second pull rope is connected to the second winding device 62, and the second end of the second pull rope is connected to the other side of the upper end of the film frame 2 after passing around the second pulley 61. The second pull rope 63 is wound and unwound by the second winding device 62, so that the upper end of the film frame 2 can be driven to slide up and down along the guide rail 3. The pulley and the pull rope in the driving mechanism are respectively provided with a pair, so that the force application point of the film frame 2 by the winding device is increased, and the stress of the film frame 2 is more uniform.
The limit component comprises a first lower limit switch 71, a first upper limit switch 72, a second lower limit switch 73 and a second upper limit switch 74. Specifically, the first lower limit switch 71 and the first upper limit switch 72 are respectively disposed at the bottom and the front side of the stage, wherein the first lower limit switch 71 is located on the inclined plane of the mounting seat 14, and the lower end of the film frame 2 contacts the first lower limit switch 71 after descending to the right position to control the first driving mechanism to stop driving; after the lower end of the film frame 2 rises to the right position, the lower end touches the first upper limit switch 72 to control the first driving mechanism to stop driving. The second lower limit switch 73 and the second upper limit switch 74 are respectively arranged at the lower end and the upper end of the guide rail 3, and the bump 41 touches the second lower limit switch 73 after falling to the right position to control the second driving mechanism to stop driving; after the lug 41 rises to the right position, the lug touches the second upper limit switch 74 to control the second driving mechanism to stop driving.
The first auxiliary tightening structure includes a third pulley 81 and a third rope 82. Specifically, the third pulley 81 is arranged above the performance platform 1; the third rope 82 has a first end connected to the stage side and a second end connected to the lower end of the film frame 2 after passing around the third pulley 81. The cooperation of the third pulley 81 and the third pull rope 82 can realize the auxiliary tension of the lower end of the film frame 2.
The second auxiliary tightening structure includes a fourth pulley 91 and a fourth rope 92. Specifically, the fourth pulley 91 is arranged above the performance platform 1; the first end of the fourth rope 92 is connected to the stage side, and the second end thereof is connected to the upper end side of the film frame 2 after passing around the fourth pulley 91. The cooperation of the fourth pulley 91 and the fourth pull rope 92 can realize the auxiliary tensioning of the upper end of the film frame 2.
When a virtual image a needs to be put in, the front overturning platform 12 is closed, the rear overturning platform 13 is opened, the lower end of the film frame 2 penetrates through the rear part of the opening of the accommodating cavity 11 and is inserted into the accommodating cavity 11, the lower end of the film frame 2 is connected to the performance platform 1, and the film frame 2 is in an inclined use state;
when needs use complete performance platform 1, the lower extreme of first actuating mechanism drive membrane frame 2 rises around slider 4, the upper end of second actuating mechanism drive membrane frame 2 rises along guide rail 3, performance platform 1 is all kept away from to the upper end and the lower extreme of membrane frame 2, membrane frame 2 is in the state of packing up, preceding upset platform 12 closes, back upset platform 13 closes, constitute complete performance platform 1, at this moment, first supplementary taut structure can carry out supplementary taut to the lower extreme of membrane frame 2, the supplementary taut structure of second can carry out supplementary taut to the upper end of membrane frame 2.
The front views of the first driving mechanism and the second driving mechanism are not shown, and refer to fig. 4 of the invention patent "composite theater stage with platform + function" with patent application No. CN201910052598.1 (publication No. CN109529379A), and patents have been already reported for the window shade, the sound component, the light component, and the LED screen or the projector, the anti-reflection glass, and the projection screen required for projecting the virtual image a, and are not repeated here.
The working principle of the invention is as follows:
(1) as shown in fig. 2, 5 and 7, the film frame 2 is in a use state, the front turning platform 12 is closed, the rear turning platform 13 is opened, the second turning plate is turned downwards, the lower end of the film frame 2 penetrates through the rear part of the opening of the accommodating cavity 11 and is inserted into the accommodating cavity 11, and the lower end of the film frame 2 is connected to the performance platform 1;
(2) when the complete performance platform 1 needs to be used:
① the first electric push rod 123 drives the first flap 122 to flip upward relative to the first base 121 (as shown in fig. 6), so that the front flip platform 12 is opened;
②, starting the first winding device 52, winding the first pull rope 53, driving the lower end of the film frame 2 to rotate upwards around the slide block 4, touching the first upper limit switch 72 after the lower end of the film frame 2 rises to the right position, and closing the first winding device 52;
③ starting the second winding device 62, winding the second pull rope 63, driving the upper end of the film frame 2 to slide upwards along the guide rail 3 along with the slide block 4, touching the second upper limit switch 74 after the projection 41 of the slide block 4 rises to the right position, and closing the second winding device 62;
④ then the second electric push rod 133 drives the second flap 132 to turn upward relative to the second base 131 (as shown in fig. 8), giving way to the first flap 122;
⑤ the first electric push rod 123 then drives the first flap 122 to flip downwards (as shown in fig. 5) relative to the first base 121, so that the front flipping platform 12 is closed;
⑥ finally, the second electric push rod 133 drives the second turning plate 132 to turn downwards relative to the second base 131 (as shown in fig. 9), so that the rear turning platform 13 is closed to form a complete performance platform 1, as shown in fig. 3, the upper end and the lower end of the film frame 2 are both far away from the performance platform 1, the film frame 2 is in a retracted state, the composite theater stage can be used as a common platform, the stage height is sufficient, the distance between the audience space and the opening on the front side of the stage is more than 4.8m, and the actual height of the opening on the front side of the stage is less than 2.25m, and the film frame 2 does not need to be provided with shielding equipment.
Claims (10)
1. A composite theater stage comprises
A performance platform (1); and
the film frame (2) is arranged above the performance platform (1) and can put a virtual image (a) on the performance platform (1);
the method is characterized in that: also comprises
Two guide rails (3) which are basically vertically arranged are respectively positioned at two sides of the stage;
two sliding blocks (4) which correspond to the guide rails (3) one by one and are in guiding fit with the guide rails are respectively and rotatably arranged at the upper end positions of two sides of the film frame (2);
the first driving mechanism can drive the lower end of the film frame (2) to rotate around the sliding block (4); and
the second driving mechanism can drive the upper end of the film frame (2) to slide up and down along the guide rail (3);
when the virtual image (a) needs to be put in, the lower end of the film frame (2) is connected on the performance platform (1), and the film frame (2) is in an inclined use state;
when needs use complete performance platform (1), the lower extreme of first actuating mechanism drive membrane frame (2) rises around slider (4), and the upper end of second actuating mechanism drive membrane frame (2) rises along guide rail (3), and performance platform (1) is all kept away from to the upper end and the lower extreme of membrane frame (2), and membrane frame (2) are in the state of packing up.
2. A composite theatre stage of claim 1, wherein: and the upper end and the lower end of the guide rail (3) are provided with limit blocks (31) for limiting the sliding block (4).
3. A composite theatre stage of claim 1, wherein: the bottom and the front side of the stage are respectively provided with a first lower limit switch (71) and a first upper limit switch (72);
the lower end of the film frame (2) is in contact with a first lower limit switch (71) after descending to the proper position so as to control a first driving mechanism to stop driving;
the lower end of the film frame (2) touches a first upper limit switch (72) after rising to the right position so as to control a first driving mechanism to stop driving.
4. A composite theatre stage of claim 1, wherein: a convex block (41) is convexly arranged on the peripheral wall of the sliding block (4), and a second lower limit switch (73) and a second upper limit switch (74) are respectively arranged at the lower end and the upper end of the guide rail (3);
the bump (41) touches a second lower limit switch (73) after descending to the right position to control a second driving mechanism to stop driving;
after the lug (41) rises to the right position, the lug touches a second upper limit switch (74) to control the second driving mechanism to stop driving.
5. A composite theatre stage of claim 1, wherein: an accommodating cavity (11) with an opening at the top is formed in the position, close to the front side, of the performance platform (1), and a front overturning platform (12) capable of opening and closing the front part of the opening and a rear overturning platform (13) capable of opening and closing the rear part of the opening are arranged in the accommodating cavity (11);
when the film frame (2) is in a use state, the front overturning platform (12) is closed, the rear overturning platform (13) is opened, and the lower end of the film frame (2) penetrates through the rear part of the opening and is inserted into the accommodating cavity (11);
when the film frame (2) is in a retracted state, the front overturning platform (12) is closed, and the rear overturning platform (13) is closed to form a complete performance platform (1).
6. A composite theatre stage of claim 5, wherein:
the front overturning platform (12) comprises
A first base (121) provided on the front side of the accommodation chamber (11);
the first turnover plate (122) is rotatably connected to the top of the first base (121); and
the two ends of the first electric push rod (123) are respectively and rotatably connected to the bottom of the first base (121) and the bottom surface of the first turning plate (122);
the rear overturning platform (13) comprises
A second base (131) provided on the rear side of the accommodation chamber (11);
the second turnover plate (132) is rotatably connected to the top of the second base (131); and
and two ends of the second electric push rod (133) are respectively and rotatably connected to the bottom of the second base (131) and the bottom surface of the second turnover plate (132).
7. A composite theatre stage of claim 1, wherein: the first driving mechanism and the second driving mechanism are both hoisting and lifting mechanisms.
8. A composite theatre stage of claim 7, wherein:
the first driving mechanism comprises
The first pulley (51) is arranged above the performance platform (1);
the first winding device (52) is arranged on one side of the performance platform (1); and
and a first end of the first pull rope (53) is connected to the first winding device (52), and a second end of the first pull rope is connected to one side of the lower end of the film frame (2) after passing around the first pulley (51).
The second driving mechanism comprises
The second pulley (61) is arranged above the performance platform (1);
the second hoisting device (62) is arranged on one side of the performance platform (1); and
and a second pull rope (63), wherein the first end of the second pull rope is connected to the second winding device (62), and the second end of the second pull rope is connected to one side of the upper end of the film frame (2) after passing around the second pulley (61).
9. A composite theatre stage of any one of claims 1-8, wherein: also comprises
The first auxiliary tensioning structure can perform auxiliary tensioning on the lower end of the film frame (2) when the film frame (2) is in a retracted state; and
and a second auxiliary tensioning structure which can perform auxiliary tensioning on the upper end of the film frame (2) when the film frame (2) is in a retracted state.
10. A composite theatre stage of claim 9, wherein:
the first auxiliary tensioning structure comprises
The third pulley (81) is arranged above the performance platform (1); and
a first end of the third pull rope (82) is connected to one side of the stage, and a second end of the third pull rope (82) is connected to one side of the lower end of the film frame (2) after passing around the third pulley (81);
the second auxiliary tensioning structure comprises
The fourth pulley (91) is arranged above the performance platform (1); and
and a fourth pull rope (92), wherein the first end of the fourth pull rope is connected to one side of the stage, and the second end of the fourth pull rope is connected to one side of the upper end of the film frame (2) after passing around a fourth pulley (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911283670.8A CN110772812A (en) | 2019-12-13 | 2019-12-13 | Composite theater stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911283670.8A CN110772812A (en) | 2019-12-13 | 2019-12-13 | Composite theater stage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110772812A true CN110772812A (en) | 2020-02-11 |
Family
ID=69394530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911283670.8A Pending CN110772812A (en) | 2019-12-13 | 2019-12-13 | Composite theater stage |
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| Country | Link |
|---|---|
| CN (1) | CN110772812A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112365827A (en) * | 2020-10-23 | 2021-02-12 | 江苏精仪达科技有限公司 | Multimedia intelligent suspension lifting device |
-
2019
- 2019-12-13 CN CN201911283670.8A patent/CN110772812A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112365827A (en) * | 2020-10-23 | 2021-02-12 | 江苏精仪达科技有限公司 | Multimedia intelligent suspension lifting device |
| CN112365827B (en) * | 2020-10-23 | 2022-08-12 | 江苏精仪达科技有限公司 | Multimedia intelligent suspension lifting device |
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