CN221101255U

CN221101255U - Portable projection curtain

Info

Publication number: CN221101255U
Application number: CN202322936788.4U
Authority: CN
Inventors: 许曙波; 圣延涛; 李晓金
Original assignee: Anhui Yingdong Superstar Screen Co ltd
Current assignee: Anhui Yingdong Superstar Screen Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-06-07
Anticipated expiration: 2033-10-31

Abstract

The utility model discloses a portable projection curtain, and relates to the technical field of curtains. The utility model relates to a portable projection curtain which comprises a rolling box, a supporting frame and a curtain body. In order to solve the defects that the projection curtain occupies a large space when in use, the height is inconvenient to adjust and mobility is lacking, the support frame is movably connected with the rolling box, the support frame can be rotated when the curtain is not in use, the support frame is fixed with the rolling box by the pins, the support frame is folded, the occupied space is reduced, meanwhile, the curtain is lifted by the lifting handle, the movement and the transportation are convenient, the height of the support frame can be adjusted by moving the telescopic frame body on the rotary frame body, the projector can be aligned with the curtain for projection, the position of the projector is prevented from being adjusted by a person standing at a high position, and the projection curtain is convenient to use.

Description

Portable projection curtain

Technical Field

The utility model relates to the technical field of curtains, in particular to a portable projection curtain.

Background

With the advancement of technology, projection screens are widely used in teaching, office, home theater, and large conference sites for displaying files such as images and videos. Most of the projection curtains used at present are fixedly hung in houses or meeting rooms, and the following defects still exist during use:

1. The occupied space is large, the movement is inconvenient, most curtains are fixed on the support frame, the support frame needs to be built in advance, the building process is complex, time and labor are wasted, and the screen cannot be moved according to the viewing angle of a spectator;

2. The curtain height is not adjustable, and most curtains are installed in a certain fixed position, so that the height and the position are inconvenient to adjust, and the position of the projector can be adjusted only by standing at a high position manually, so that the projector is very inconvenient.

Therefore, in order to solve the defects that the projection curtain occupies a large space when in use, is inconvenient to adjust the height and lacks mobility, it is necessary to provide a portable projection curtain.

Disclosure of utility model

The utility model aims to provide a portable projection curtain, which can rotate a support frame through the movable connection of the support frame and a rolling box when the curtain is not used, and fix the support frame and the rolling box by using pins, so that the support frame is folded, occupied space is reduced, meanwhile, the curtain can be lifted by a lifting handle, the carrying and the moving are convenient, the height of the support frame can be adjusted by moving a telescopic frame body on a rotary frame body, a projector can project aiming at the curtain, the position of the projector is prevented from being adjusted by a person standing at a high position, and the projection curtain is convenient to use, so that the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The portable projection curtain comprises a rolling box, a supporting frame and a curtain body, wherein a lifting handle is arranged at the top end of the rolling box, fixing plates are welded at the left and right sides of the bottom end of the rolling box, and the supporting frame is movably connected to the fixing plates through pin shafts;

The support frame comprises a rotary frame body and a telescopic frame body, the rotary frame body is movably connected with the fixed plate, the telescopic frame body is movably sleeved outside the rotary frame body, and the telescopic frame body is fixed with the rotary frame body through a positioning pin;

A winding cavity is arranged in the winding box, a cloth outlet groove is arranged at the bottom end of the winding cavity, a winding shaft is movably arranged in the winding cavity, one end of the winding shaft penetrates through the winding box and is connected with a rotating handle, the winding shaft is wound with a curtain body, and the bottom end of the curtain body penetrates through the cloth outlet groove and is arranged outside the winding box.

Preferably, the front end of the furling box is detachably connected with a pin, a limiting plate is welded on the inner side of the bottom end of the telescopic frame body, a limiting hole is formed in the limiting plate, and the pin can be inserted into the limiting hole.

Preferably, a plurality of positioning holes A are formed in the rotary frame body at equal intervals, positioning holes B matched with the positioning holes A are formed in the telescopic frame body, and positioning pins are inserted in the positioning holes A and the positioning holes B together.

Preferably, a magnet is adhered to the inner end of the telescopic frame body.

Preferably, the bottom fixed mounting of curtain body has the frame, the inside hollow and the activity of frame is equipped with the iron plate, the quantity of iron plate has two and bilateral symmetry to set up, the one end of iron plate runs through the frame and extends to outside the frame.

Preferably, the front end of the iron block is fixedly provided with a shifting block, and the front end of the frame is provided with a movable groove matched with the shifting block.

Compared with the prior art, the utility model has the following beneficial effects:

1. This portable projection curtain can rotate folding to the support frame through the swing joint of support frame and roll-up box, reduces occupation space, when not using the curtain body, rotatory support frame makes support frame and roll-up box keep parallel to fix support frame and roll-up box mutually through the pin, the roll-up box is moved to the rethread lifting, convenient to use person carries and removes the curtain body, when needs use the curtain body, rotatory support frame makes support frame and roll-up box be the perpendicular state and supports the roll-up box, the rethread changes the handle for the curtain body is expanded and can be used, need not the manual work and is being put up the support frame, it is convenient to use;

2. This portable projection curtain, when the curtain body is expanded, through shifting block removal iron plate for the iron plate can inhale mutually with magnet, fixes the curtain body, improves projection effect, still can remove flexible support body on rotatory support body simultaneously, realizes the regulation to support frame length, and then adjusts the height of curtain body, the image of the projector of being convenient for curtain body alignment, need not the manual work station and adjusts the projector in the eminence, and the security is high.

Drawings

FIG. 1 is a perspective view of a curtain of the present utility model when deployed;

FIG. 2 is a front view of the curtain of the present utility model when deployed;

FIG. 3 is a plan view of the support frame of the present utility model when folded;

Fig. 4 is a cross-sectional view of the case of the present utility model.

In the figure: 1. a winding box; 11. a handle; 12. a pin; 13. a fixing plate; 14. a pin shaft; 15. a winding cavity; 16. a cloth outlet groove; 17. a winding shaft; 171. a rotating handle; 2. a support frame; 21. a rotary frame body; 211. positioning holes A; 22. a telescopic frame body; 221. positioning holes B; 222. a positioning pin; 223. a limiting plate; 224. a limiting hole; 225. a magnet; 3. a curtain body; 31. a frame; 311. a movable groove; 32. iron blocks; 321. and (5) a shifting block.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the technical problem of how to fold and unfold the support frame, please refer to fig. 1-3, the present embodiment provides the following technical scheme:

The utility model provides a portable projection curtain, including roll-up box 1 and support frame 2, handle 11 is installed on the top of roll-up box 1, the bottom bilateral symmetry of roll-up box 1 has welded fixed plate 13, there is support frame 2 through round pin axle 14 swing joint on the fixed plate 13, support frame 2 includes swivel mount body 21 and expansion bracket body 22, swivel mount body 21 and fixed plate 13 swing joint, the front end detachable of roll-up box 1 is connected with pin 12, limiting plate 223 has been welded to the bottom inboard of expansion bracket body 22, limiting hole 224 has been seted up on the limiting plate 223, pin 12 can alternate in limiting hole 224.

Specifically, when the support frame 2 needs to be unfolded, the pin 12 can be pulled out from the limiting hole 224, so that the rotary frame body 21 can rotate, the rotary frame body 21 is rotated until the rotary frame body 21 is vertical to the winding box 1, the winding box 1 is supported, when the support frame 2 needs to be retracted, the rotary frame body 21 is rotated until the rotary frame body 21 is horizontally arranged at the lower end of the winding box 1, and the limiting plate 223 and the winding box 1 are fixed by the pin 12, so that the support frame 2 can be folded.

In order to solve the technical problem of how to adjust the height of the curtain, please refer to fig. 1, the present embodiment provides the following technical scheme:

The telescopic frame body 22 is movably sleeved outside the rotary frame body 21, the telescopic frame body 22 is fixed with the rotary frame body 21 through positioning pins 222, a plurality of positioning holes A211 are formed in the rotary frame body 21 at equal intervals, positioning holes B221 matched with the positioning holes A211 are formed in the telescopic frame body 22, and the positioning pins 222 are jointly inserted in the positioning holes A211 and the positioning holes B221.

Specifically, when the height of the curtain needs to be adjusted, the telescopic frame body 22 can be moved outside the rotary frame body 21 until the height is adjusted to a proper level, and then the positioning pin 222 is inserted into the positioning hole A211 and the positioning hole B221 to fix the rotary frame body 21 and the telescopic frame body 22, so that the height of the curtain is adjusted.

It should be noted that, the shapes and sizes of the positioning hole a211 and the positioning hole B221 are completely consistent, the shapes are irregular, the middle end of the positioning pin 222 is a rotating shaft, the two ends are limiting blocks with the shapes consistent with the positioning hole, when the support frame 2 needs to be fixed, the positioning pin 222 is inserted into the positioning hole a211 and the positioning hole B221, and then the rotating shaft is rotated, at the moment, the limiting blocks are rotated to be perpendicular to the positioning hole, the positioning block cannot easily fall off from the positioning hole, and the fixing stability is improved.

In order to solve the technical problem of how the curtain projects, please refer to fig. 4, the present embodiment provides the following technical scheme:

the rolling box 1 is internally provided with a rolling cavity 15, the bottom end of the rolling cavity 15 is provided with a cloth outlet groove 16, the rolling cavity 15 is internally movably provided with a rolling shaft 17, one end of the rolling shaft 17 penetrates through the rolling box 1 and is connected with a rotating handle 171, the rolling shaft 17 is wound with a curtain body 3, the bottom end of the curtain body 3 penetrates through the cloth outlet groove 16 and is arranged outside the rolling box 1, and the inner end of the telescopic frame body 22 is adhered with a magnet 225.

The bottom fixed mounting of curtain body 3 has frame 31, and the inside hollow and the activity of frame 31 are equipped with iron plate 32, and the quantity of iron plate 32 has two and bilateral symmetry to set up, and the one end of iron plate 32 runs through frame 31 and extends to outside the frame 31, and the front end fixed mounting of iron plate 32 has a plectrum 321, and the front end of frame 31 has seted up the movable slot 311 with plectrum 321 looks adaptation.

Specifically, when the curtain body 3 is required to be used, the rotating handle 171 is rotated, the rotating handle 171 drives the winding shaft 17 to rotate, so that the curtain body 3 is unfolded until the curtain body 3 is completely unfolded, the shifting block 321 is moved in the movable groove 311 at the moment, the shifting block 321 drives the iron block 32 to move until one end of the iron block 32 moves out of the frame 31 and attracts the magnet 225, the curtain body 3 is fixed, the curtain body 3 is prevented from being blown by wind force, and the projection effect is improved.

Working principle: this portable projection curtain, when using, lift up roll-up box 1 through handle 11 earlier, until move roll-up box 1 to the projecting apparatus just opposite, then dismantle pin 12, rotate rotatory support body 21, until rotatory support body 21 is the vertical state with roll-up box 1, make rotatory support body 21 can support roll-up box 1, then rotate the commentaries on classics handle 171, make curtain body 3 from roll-up box 1 in being expanded, until the expansion is complete, dismantle locating pin 222 again, upwards remove rotatory support body 21 in flexible support body 22, until the alignable influence of curtain body 3, again insert locating pin 222 in locating hole A211 and the locating hole B221, and rotate locating pin 222, realize fixing support frame 2, finally remove iron plate 32 through shifting block 321, make iron plate 32's one end depths frame 31 and inhale with magnet 225 mutually, realize fixing curtain body 3.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable projection curtain, includes roll-up box (1), support frame (2) and curtain body (3), its characterized in that: a lifting handle (11) is arranged at the top end of the rolling box (1), fixing plates (13) are welded at the left and right sides of the bottom end of the rolling box (1), and the fixing plates (13) are movably connected with a supporting frame (2) through pin shafts (14);

The support frame (2) comprises a rotary frame body (21) and a telescopic frame body (22), the rotary frame body (21) is movably connected with the fixed plate (13), the telescopic frame body (22) is movably sleeved outside the rotary frame body (21), and the telescopic frame body (22) is fixed with the rotary frame body (21) through a positioning pin (222);

The novel curtain winding device is characterized in that a winding cavity (15) is formed in the winding box (1), a cloth outlet groove (16) is formed in the bottom end of the winding cavity (15), a winding shaft (17) is movably installed in the winding cavity (15), one end of the winding shaft (17) penetrates through the winding box (1) and is connected with a rotating handle (171), a curtain body (3) is wound on the winding shaft (17), and the bottom end of the curtain body (3) penetrates through the cloth outlet groove (16) and is arranged outside the winding box (1).

2. The portable projection screen of claim 1, wherein: the front end of the winding box (1) is detachably connected with a pin (12), a limiting plate (223) is welded on the inner side of the bottom end of the telescopic frame body (22), a limiting hole (224) is formed in the limiting plate (223), and the pin (12) can be inserted into the limiting hole (224).

3. The portable projection screen of claim 1, wherein: a plurality of locating holes A (211) are formed in the rotary frame body (21) at equal intervals, locating holes B (221) matched with the locating holes A (211) are formed in the telescopic frame body (22), and locating pins (222) are inserted into the locating holes A (211) and the locating holes B (221) together.

4. The portable projection screen of claim 1, wherein: the inner end of the telescopic frame body (22) is stuck with a magnet (225).

5. The portable projection screen of claim 1, wherein: the curtain is characterized in that a frame (31) is fixedly arranged at the bottom end of the curtain body (3), iron blocks (32) are arranged in the frame (31) in a hollow mode and are movably arranged, two iron blocks (32) are symmetrically arranged left and right, and one end of each iron block (32) penetrates through the frame (31) and extends out of the frame (31).

6. The portable projection screen of claim 5, wherein: the front end of the iron block (32) is fixedly provided with a shifting block (321), and the front end of the frame (31) is provided with a movable groove (311) matched with the shifting block (321).