CN211627994U - Projection curtain of a key mechanical type rolling - Google Patents
Projection curtain of a key mechanical type rolling Download PDFInfo
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- CN211627994U CN211627994U CN202020269339.2U CN202020269339U CN211627994U CN 211627994 U CN211627994 U CN 211627994U CN 202020269339 U CN202020269339 U CN 202020269339U CN 211627994 U CN211627994 U CN 211627994U
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- projection cloth
- transmission shaft
- transmission
- winding drum
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Abstract
The utility model relates to a projection arrangement technical field specifically is a projection curtain of a key mechanical type rolling, including fixing base, bracket, winding reel, spacing card, projection cloth and transmission structure and, the fixing base openly welds the bracket, and the fixing base front end passes through fixing bolt fixed connection winding reel, and the inside rotation of winding reel connects the transmission shaft, and the transmission shaft left end is passed the winding reel and is connected to the outside and the rotation of pegging graft connects in the bracket, and the spacing card of winding reel lower extreme both sides welding, winding reel right side are equipped with the transmission structure, and beneficial effect is: for automatic rolling formula projection curtain, drive the transmission shaft through driving motor and coil or emit the projection cloth, simplify the operation process through a keying operation, improve the convenience of use greatly, use limit structure can restrict the projection cloth in the in-process of receiving and releasing moreover, prevent that the projection cloth from appearing crooked, can also smooth the projection cloth, increase the result of use, improve the projection cloth and receive and release the smoothness.
Description
Technical Field
The utility model relates to projection arrangement technical field specifically is a projection curtain of a key mechanical type rolling.
Background
Projection screens are tools used in movies, offices, home theaters, large conferences, etc. to display images and video files. And can be divided into various sizes. The selection of different space projection screens is different, for example, a wide viewing angle and a low gain screen are suitable for the occasions with more people to watch or the occasions to watch transversely, a narrow viewing angle and a high gain screen are selected for watching in a narrow and long space, 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 an image is increased, the color is bright, and the observability of the image is increased.
Present projection curtain is when using, receive and releases the mode of adoption have manual pull-down formula and automatic winding formula, and manual pull-down formula needs the manpower to go on the drop-down, uses not enough convenient slowly can be replaced by automatic winding formula, and the curtain fold appears when current automatic winding formula projection curtain exists receiving and releasing, can not receive and release smoothly and semi-automatic operation, and the operation convenience remains to improve, for this, the utility model provides a projection curtain of a key mechanical type rolling is used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a projection curtain of a key mechanical type rolling 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 curtain of a key mechanical type rolling, includes fixing base, bracket, receipts reel, spacing card, projection cloth and transmission structure and, the positive welding bracket of fixing base, the fixing base front end is through fixing bolt fixed connection receiving reel, the inside rotation of receipts reel connects the transmission shaft, the transmission shaft left end is passed a rolling section of thick bamboo and is connected to the outside and the grafting rotation is connected in the bracket, receipts reel lower extreme both sides welding spacing card, receipts reel right side is equipped with transmission structure, transmission structure includes the transmission shaft of rolling section of thick bamboo rotation connection, the receipts reel is passed on the transmission shaft right side, transmission shaft right side end welding drive gear, another drive gear is connected through the transmission cingulum transmission to drive gear, another drive gear welds the transmission output at drive motor, drive motor passes through bolt fixed connection and receives reel right side upper end, the transmission structure outside is through bolt fixed connection transmission structure protective housing, the transmission shaft outside is rolled up and is equipped with projection cloth, projection cloth end passes winding drum sub-unit connection to the outside, projection cloth end outside joint pull rod.
Preferably, spacing card is including the fixed block of welding on the take-up drum, and the spacing groove has been seted up to fixed block inside, projection cloth edge sliding connection is in the spacing groove, both sides are spacing card outer wall around the spacing groove, it smooths the groove to have seted up in the spacing card outer wall, smooths inslot portion both sides and inlays the connecting axle sleeve, rotate between the axle sleeve and connect and smooth the roller, smooth roller surface laminating projection cloth.
Preferably, the pull rod is formed by fixedly connecting two corresponding hollow plates through bolts, the projection cloth is inserted into the pull rod and fixedly clamped through the bolts, a balancing weight is placed in the inner space of the pull rod, a limiting block is integrally formed on the upper side of the pull rod, and the limiting block corresponds to a groove between the limiting clamps at the lower end of the winding drum.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an automatic rolling formula projection curtain drives the transmission shaft through drive motor and with projection cloth rolling or emit, simplifies the operation process through a keying operation, improves the convenience of use greatly, uses limit structure can restrict projection cloth in receiving and releasing the in-process moreover, prevents that projection cloth from appearing crooked, can also smooth projection cloth, increases the result of use, improves projection cloth and receive and release the smoothness.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is an enlarged schematic view of the structure at B in fig. 2.
In the figure: the device comprises a fixing seat 1, a bracket 2, a winding drum 3, a limiting clamp 4, projection cloth 5, a pull rod 6, a limiting block 7, a winding shaft 8, a transmission gear 9, a transmission toothed belt 10, a transmission shaft 11, a transmission motor 12, a transmission structure protective shell 13, a limiting clamp outer wall 14, a shaft sleeve 15 and a smoothing roller 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 to 3, the present invention provides a technical solution: a projection curtain for one-key mechanical rolling comprises a fixed seat 1, a bracket 2, a rolling barrel 3, a limiting clamp 4, a projection cloth 5 and a transmission structure, wherein the bracket 2 is welded on the front surface of the fixed seat 1, the front end of the fixed seat 1 is fixedly connected with a winding barrel 3 through a fixing bolt, the inner part of the rolling barrel 3 is rotatably connected with a transmission shaft 11, the left end of the transmission shaft 11 penetrates through the winding barrel 3 to be connected to the outer side and is connected in the bracket 2 in an inserting and rotating manner, the limiting clamp 4 is welded on two sides of the lower end of the winding barrel 3, the right side of the rolling barrel 3 is provided with the transmission structure which comprises the transmission shaft 11 rotatably connected with the winding barrel 3, the right side of the transmission shaft 11 penetrates through the winding barrel 3, the tail end of the right side of the transmission shaft 11 is welded with a transmission gear 9, the transmission gear 9 is connected, the transmission structure outside is passed through bolt fixed connection transmission structure protective housing 13, and 11 outside rolls up in the transmission shaft are equipped with projection cloth 5, and 5 terminal passing winding reel 3 sub-unit connections in projection cloth are to the outside, 5 terminal outside joint pull rods 6 of projection cloth.
The utility model discloses can further set up to, spacing card 4 is including the fixed block of welding on winding drum 3, the spacing groove has been seted up to fixed block inside, 5 marginal sliding connection of projection cloth are at the spacing inslot, both sides are spacing card outer wall 14 around the spacing groove, it smoothes the groove to have seted up in spacing card outer wall 14, smooth inslot portion both sides and inlay connecting axle sleeve 15, rotate between the axle sleeve 15 and connect and smooth roller 16, smooth 16 surface laminating projection cloths 5 of roller, can restrict the position of receiving and releasing of projection cloth 5 through spacing card 4, it is crooked to place projection cloth 5 and receive and release the in-process appearance, can smooth projection cloth 5 through smoothing roller 16, prevent that fold influence result of use from appearing on the projection cloth 5.
The utility model can be further arranged that the pull rod 6 is formed by fixedly connecting two corresponding hollow plates through bolts, the projection cloth 5 is inserted in the pull rod 6 and is clamped through the bolts, the balancing weight is placed in the inner space of the pull rod 6, the upper side of the pull rod 6 is integrally formed with a limiting block 7, the limiting block 7 corresponds to the groove between the limiting blocks 4 at the lower end of the winding cylinder 3, the storage length of the projection cloth 5 can be limited through the pull rod 6, can lead the projection cloth 5 to be provided with a section of non-retractable part, can prevent the projection cloth 5 from being rolled too much and being released from the rolling cylinder 3 unsuccessfully when being rolled and released next time through the non-retractable part, increases the releasing convenience of the projection cloth 5, the projection cloth 5 can be stretched downwards through the balancing weight, so that the projection cloth 5 is kept flat, the use effect is improved, and the projection cloth 5 can be more conveniently and smoothly released, and the projection cloth 5 is prevented from being clamped and not released.
The working principle is as follows: when the device works, the transmission motor 12 rotates to drive the transmission gear 9 connected with the transmission output end of the transmission motor 12, the transmission gear 9 is in transmission connection with another transmission gear 9 through the transmission toothed belt 10, the other transmission gear 9 is connected with the tail end of one side of the transmission shaft 11, the transmission shaft 11 is rotatably connected in the winding drum 3, the projection cloth 5 is wound outside the transmission shaft 11 in the winding drum 3, the projection cloth 5 can be discharged by rotating the transmission shaft 11, the projection cloth 5 is discharged from the lower part of the winding drum 3 and is pulled out downwards by the gravity of the pull rod 6 at the bottom of the projection cloth 5, and then pay out projection cloth 5, when retrieving, can retrieve projection cloth 5 to the reel 3 in through driving motor 12 antiport, pull rod 6 can prevent that the rolling from excessively taking in projection cloth 5 terminal in the reel 3, can not pay out automatically or dead problem of card next time, increases and receive and release the smoothness to and the operation convenience.
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 (3)
1. The utility model provides a projection curtain of a key mechanical type rolling, includes fixing base (1), bracket (2), a rolling section of thick bamboo (3), spacing card (4), projection cloth (5) and transmission structure and its characterized in that: the front side of the fixing seat (1) is welded with the bracket (2), the front end of the fixing seat (1) is fixedly connected with the winding drum (3) through a fixing bolt, the winding drum (3) is internally rotatably connected with the transmission shaft (11), the left end of the transmission shaft (11) penetrates through the winding drum (3) to be connected to the outer side and is rotatably connected in the bracket (2) in an inserting manner, the two sides of the lower end of the winding drum (3) are welded with the limit clamps (4), the right side of the winding drum (3) is provided with a transmission structure, the transmission structure comprises the transmission shaft (11) which is rotatably connected with the winding drum (3) in a rotating manner, the right side of the transmission shaft (11) penetrates through the winding drum (3), the tail end of the right side of the transmission shaft (11) is welded with the transmission gear (9), the transmission gear (9) is, drive motor (12) are in receipts reel (3) right side upper end through bolt fixed connection, bolt fixed connection transmission structure protective housing (13) is passed through in the transmission structure outside, transmission shaft (11) outside is rolled up and is equipped with projection cloth (5), projection cloth (5) end passes receipts reel (3) sub-unit connection to the outside, projection cloth (5) terminal outside joint pull rod (6).
2. The projection curtain of claim 1, wherein the projection curtain is mechanically rolled by one key, and the projection curtain comprises: spacing card (4) including the welding fixed block on winding drum (3), the spacing groove has been seted up to fixed block inside, projection cloth (5) edge sliding connection is in the spacing inslot, both sides are spacing card outer wall (14) around the spacing groove, it smooths the groove to have seted up in spacing card outer wall (14), smooths inslot portion both sides and inlays connecting axle sleeve (15), rotate between axle sleeve (15) and connect and smooth roller (16), smooth roller (16) surface laminating projection cloth (5).
3. The projection curtain of claim 1, wherein the projection curtain is mechanically rolled by one key, and the projection curtain comprises: pull rod (6) are formed through bolt fixed connection by two corresponding hollow core slabs, grafting in pull rod (6) and through the bolt fastening joint projection cloth (5), the balancing weight has been placed in pull rod (6) inner space, pull rod (6) upside integrated into one piece be equipped with stopper (7), stopper (7) correspond with the groove between the spacing card (4) of receipts reel (3) lower extreme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020269339.2U CN211627994U (en) | 2020-03-07 | 2020-03-07 | Projection curtain of a key mechanical type rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020269339.2U CN211627994U (en) | 2020-03-07 | 2020-03-07 | Projection curtain of a key mechanical type rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211627994U true CN211627994U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020269339.2U Active CN211627994U (en) | 2020-03-07 | 2020-03-07 | Projection curtain of a key mechanical type rolling |
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| CN (1) | CN211627994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634683A (en) * | 2021-01-19 | 2021-04-09 | 河南工业贸易职业学院 | Portable finance and tax big data information explanation is with projection public address set |
-
2020
- 2020-03-07 CN CN202020269339.2U patent/CN211627994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634683A (en) * | 2021-01-19 | 2021-04-09 | 河南工业贸易职业学院 | Portable finance and tax big data information explanation is with projection public address set |
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