CN212049717U - Prevent projection curtain coiling mechanism of fold - Google Patents
Prevent projection curtain coiling mechanism of fold Download PDFInfo
- Publication number
- CN212049717U CN212049717U CN202020480508.7U CN202020480508U CN212049717U CN 212049717 U CN212049717 U CN 212049717U CN 202020480508 U CN202020480508 U CN 202020480508U CN 212049717 U CN212049717 U CN 212049717U
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- China
- Prior art keywords
- gear
- fixedly connected
- fold
- supporting rod
- bracing piece
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Overhead Projectors And Projection Screens (AREA)
Abstract
The utility model relates to the technical field of projection devices, in particular to a projection screen rolling device for avoiding folds, which comprises a screen and a fixing frame, wherein one end of the screen is fixedly connected with a first supporting rod, the left end of the outer side of the first supporting rod is fixedly connected with a first gear, the lower side position of the first gear is meshed with a second gear, the lower side position of the second gear is meshed with a third gear, the front side position of the third gear is meshed with a fourth gear, the left side of the first supporting rod is fixedly connected with a spring, the other end of the spring is fixedly connected with a rotating frame, in the utility model, the second gear, the third gear and the fourth gear are driven by rotating the first gear through the second gear and the third gear, when the screen is folded again, the second supporting rod limits the screen and smooths the surface of the screen, so that the screen can not generate folds when being folded, is more beneficial to the next use.
Description
Technical Field
The utility model relates to a projection arrangement technical field specifically is an avoid projection curtain cloth coiling mechanism of fold.
Background
The projection screen is a tool used for displaying images and video files in occasions such as movies, offices, home theaters, large conferences and the like, and is divided into a plurality of specifications and sizes, and different space projection screens are different in selection, for example, a screen with a wide viewing angle and low gain is preferably selected in occasions with more people to watch or in transverse watching, a screen with a narrow viewing angle and high gain is selected in narrow and long space watching, and a screen with proper gain is selected at the same time, so that the contrast of the screen is improved, the gray level of the image is increased, the color is bright, and the observability of the image is improved.
We use in the life and pack up when the curtain, the fold can appear in some cases, and appear when packing up that the fold can influence next use, makes the projected effect not good, when the rolling to the curtain, the motor control is used to most on the market, can not use under the outage condition, consequently, proposes a projection curtain coiling mechanism who avoids the fold to above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an avoid projection curtain coiling mechanism of fold to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a projection screen winding device capable of avoiding wrinkles comprises a screen and a fixing frame, wherein one end of the screen is fixedly connected with a first supporting rod, the left side of the outer side of the first supporting rod is fixedly connected with a first gear, the lower side of the first gear is meshed with a second gear, the lower side of the second gear is meshed with a third gear, the front side of the third gear is meshed with a fourth gear, the left side of the first supporting rod is fixedly connected with a spring, the other end of the spring is fixedly connected with a rotating frame, the left side of the rotating frame is fixedly connected with a handle, the inner side of the rotating frame is fixedly connected with a limiting block, the right side of the rotating frame is fixedly connected with a fixed shaft, the outer side of the fixed shaft is rotatably connected with a wheel, the inner side of the fixing frame is rotatably connected with a second supporting rod, and the inner side of the fixing frame, and the right side of the third supporting rod is slidably connected with a positioning plate.
Preferably, the third gear and the fourth gear are the same size.
Preferably, the inner side of the fixing frame is fixedly connected with a positioning plate, and the outer sides of the first supporting rod, the second supporting rod and the third supporting rod are rotatably connected with the positioning plate.
Preferably, the left end of the first support rod is provided with a groove, and the limiting block is clamped with the first support rod through the groove.
Preferably, the number of the wheels is 2, two grooves are formed in the left side of the fixing frame, and the wheels are clamped with the fixing frame through the grooves.
Preferably, the number of the second support rods is 2, and the inner sides of the third gear and the fourth gear are fixedly connected with the second support rods.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, the second gear, the third gear and the fourth gear are driven by rotating the first gear through the second gear and the third gear which are arranged, when the curtain is folded, the second supporting rod limits the curtain and smoothes the surface of the curtain, so that the curtain can not generate folds when being folded, and the next use is more facilitated;
2. the utility model discloses in, through the handle and the wheel that set up, through rotating the handle, drive the rotating turret, stopper on the rotating turret drives first bracing piece and rotates, packs up the curtain, packs up the completion back, and the spring rebounds, drives the wheel, realizes fixedly through the block of wheel and mount upper groove, steerable slew velocity when packing up simultaneously.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of the gear engagement position of the present invention;
fig. 4 is a right side view of the present invention.
In the figure: the device comprises a curtain 1, a fixing frame 2, a first supporting rod 3, a first gear 4, a second gear 5, a third gear 6, a fourth gear 7, a spring 8, a rotating frame 9, a handle 10, a limiting block 11, a fixed shaft 12, a wheel 13, a second supporting rod 14, a third supporting rod 15 and a positioning plate 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution:
a projection curtain winding device for avoiding wrinkles comprises a curtain 1 and a fixing frame 2, wherein one end of the curtain 1 is fixedly connected with a first supporting rod 3, the left end of the outer side of the first supporting rod 3 is fixedly connected with a first gear 4, the lower side position of the first gear 4 is meshed with a second gear 5, the lower side position of the second gear 5 is meshed with a third gear 6, the front side position of the third gear 6 is meshed with a fourth gear 7, the curtain 1 is tensioned through rotation, the curtain 1 cannot be wrinkled, the left side of the first supporting rod 3 is fixedly connected with a spring 8, the other end of the spring 8 is fixedly connected with a rotating frame 9, the left side of the rotating frame 9 is fixedly connected with a handle 10, the inner side of the rotating frame 9 is fixedly connected with a limiting block 11, the right side of the rotating frame 9 is fixedly connected with a fixing shaft 12, the outer side of the fixing shaft 12 is rotatably connected with a wheel 13, the inner side, the inner side of the fixed frame 2 is rotatably connected with a third supporting rod 15, and the right side of the third supporting rod 15 is slidably connected with a positioning plate 16 for fixing the position of the second gear 5.
The third gear 6 and the fourth gear 7 are the same in size, and drive the second support rod 14 to prevent the curtain 1 from wrinkling, the rotating speeds of the third gear 6 and the fourth gear 7 are the same, the inner side of the fixed frame 2 is fixedly connected with a positioning plate 16, the outer side of the first support rod 3, the outer side of the second support rod 14 and the outer side of the third support rod 15 are rotatably connected with the positioning plate 16, the first support rod 3 and the second support rod 14 are supported, the third support rod 15 is fixed and limited, the left end of the first support rod 3 is provided with a groove, a limiting block 11 is clamped with the first support rod 3 through the groove, the limiting is carried out when the rotating frame 9 rotates, meanwhile, the rotating frame 9 drives the first support rod 3 to rotate, the number of the wheels 13 is 2, the left side of the fixed frame 2 is provided with two grooves, the wheels 13 are clamped with the fixed frame 2 through the grooves, and play a role in supporting and fixing for, the number of the second support rods 14 is 2, the inner sides of the third gear 6 and the fourth gear 7 are fixedly connected with the second support rods 14, and the curtain 1 cannot be wrinkled through rotation.
The working process is as follows: after the projector is used, the handle 10 is pulled outwards, the wheel 13 leaves the groove on the fixed frame 2, the handle 10, the limiting block 11 drives the first supporting rod 3 to rotate, the first supporting rod 3 rotates to drive the first gear 4 to rotate, the first gear 4 drives the second gear 5, the direction of the second gear 5 is changed to enable the third gear 6 to rotate in the same direction as the first gear 4, the second gear 5 drives the third gear 6, the third gear 6 drives the fourth gear 7, the third gear 6 and the second supporting rod 14 on the fourth gear 7 stabilize the curtain 1, wrinkles are smoothed, when the curtain 1 is completely folded, the handle 10 is rotated, when the wheel 13 is clamped into the groove, the handle 10 is released, the rotating frame 9 is pulled to contract by the elasticity of the spring 8, and the wheel 13 is completely clamped into the groove to be fixed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an avoid projection curtain coiling mechanism of fold, includes curtain (1) and mount (2), its characterized in that: the curtain is characterized in that one end of the curtain (1) is fixedly connected with a first supporting rod (3), the left end of the outer side of the first supporting rod (3) is fixedly connected with a first gear (4), the lower side position of the first gear (4) is meshed with a second gear (5), the lower side position of the second gear (5) is meshed with a third gear (6), the front side position of the third gear (6) is meshed with a fourth gear (7), the left side of the first supporting rod (3) is fixedly connected with a spring (8), the other end of the spring (8) is fixedly connected with a rotating frame (9), the left side of the rotating frame (9) is fixedly connected with a handle (10), the inner side of the rotating frame (9) is fixedly connected with a limiting block (11), the right side of the rotating frame (9) is fixedly connected with a fixed shaft (12), the outer side of the fixed shaft (12) is rotatably connected with a wheel (, the inboard of mount (2) is rotated and is connected with second bracing piece (14), the inboard of mount (2) is rotated and is connected with third bracing piece (15), the right side sliding connection of third bracing piece (15) has locating plate (16).
2. A fold-avoiding projection screen cloth winding apparatus according to claim 1, wherein: the size of the third gear (6) is the same as that of the fourth gear (7).
3. A fold-avoiding projection screen cloth winding apparatus according to claim 1, wherein: the inboard fixedly connected with locating plate (16) of mount (2), the outside of first bracing piece (3), the outside of second bracing piece (14) and the outside of third bracing piece (15) all rotate and are connected with locating plate (16).
4. A fold-avoiding projection screen cloth winding apparatus according to claim 1, wherein: the left end of first bracing piece (3) is equipped with the recess, stopper (11) through the recess with first bracing piece (3) block.
5. A fold-avoiding projection screen cloth winding apparatus according to claim 1, wherein: the number of the wheels (13) is 2, two grooves are formed in the left side of the fixing frame (2), and the wheels (13) are clamped with the fixing frame (2) through the grooves.
6. A fold-avoiding projection screen cloth winding apparatus according to claim 1, wherein: the number of the second supporting rods (14) is 2, and the inner sides of the third gear (6) and the fourth gear (7) are fixedly connected with the second supporting rods (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020480508.7U CN212049717U (en) | 2020-04-04 | 2020-04-04 | Prevent projection curtain coiling mechanism of fold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020480508.7U CN212049717U (en) | 2020-04-04 | 2020-04-04 | Prevent projection curtain coiling mechanism of fold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212049717U true CN212049717U (en) | 2020-12-01 |
Family
ID=73541576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020480508.7U Expired - Fee Related CN212049717U (en) | 2020-04-04 | 2020-04-04 | Prevent projection curtain coiling mechanism of fold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212049717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160618A (en) * | 2021-02-28 | 2021-07-23 | 夏培准 | Multimedia teaching equipment |
-
2020
- 2020-04-04 CN CN202020480508.7U patent/CN212049717U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113160618A (en) * | 2021-02-28 | 2021-07-23 | 夏培准 | Multimedia teaching equipment |
| CN113160618B (en) * | 2021-02-28 | 2022-11-01 | 陕西易视通达科技有限公司 | Multimedia teaching equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |