CN210626872U

CN210626872U - Novel projection screen

Info

Publication number: CN210626872U
Application number: CN201921938631.2U
Authority: CN
Inventors: 陈志红
Original assignee: Shenzhen Shangying Vision Technology Co ltd
Current assignee: Shenzhen Shangying Vision Technology Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-05-26
Anticipated expiration: 2029-11-12

Abstract

The utility model belongs to the technical field of the projection curtain technique and specifically relates to a novel projection curtain builds the inconvenient problem of costing time and accomodating to the outdoor projection curtain of using in the technique, now proposes following scheme, and it is including placing table and backup pad, the top of placing the table is fixed with the bottom plate, the back of bottom plate is fixed with the fixed column, all is fixed with the stopper on the both sides outer wall of fixed column, the mounting groove has been seted up at the top of bottom plate, and the inside of mounting groove is rotated and is connected with the spool, and the outside of spool is convoluteed there is the curtain, the connecting hole has been seted up to the positive bottom of backup pad, has all seted up the spacing groove on the both sides inner wall of connecting hole, the one end through connection. The utility model discloses rational in infrastructure, design benefit, easy operation not only conveniently builds the curtain, conveniently accomodates the curtain moreover, has reduced the degree of difficulty of building, easily uses widely.

Description

Novel projection screen

Technical Field

The utility model relates to a projection curtain field especially relates to a novel projection curtain.

Background

With the popularization of computer applications, both work and life have tended to be electronic. The projector is often needed to be used in public places such as work and study, and work files or audio-video files in a computer can be projected to a large screen for collective viewing through the projector, so that the sharing effect is achieved.

At present, projection screens are various in types, some projection screens are directly hung on a wall, some projection screens are built up through some brackets, and the projection screens built up through the brackets are mostly suitable for the requirements of outdoor projection. However, the existing outdoor projection screens have some defects, on one hand, the steps for building are complex, and more time is needed to be consumed, and on the other hand, the storage of the projection screen is troublesome, so that the scheme provides a novel projection screen.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel projection curtain, the projection curtain who has solved among the prior art is used outdoors builds and expends time and accomodates inconvenient problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel projection screen comprises a placing table and a supporting plate, wherein a bottom plate is fixed at the top of the placing table, a fixed column is fixed at the back of the bottom plate, limiting blocks are fixed on the outer walls of the two sides of the fixed column, a mounting groove is formed in the top of the bottom plate, a scroll is rotatably connected inside the mounting groove, a screen is wound outside the scroll, a connecting hole is formed in the bottom of the front surface of the supporting plate, limiting grooves are formed in the inner walls of the two sides of the connecting hole, one end of the fixed column penetrates through the connecting hole and extends to the outside of the supporting plate, one sides of the two limiting blocks respectively extend to the inside of the two limiting grooves and are in sliding connection with the two limiting grooves, a fixed sleeve is fixed at the back of the supporting plate and is sleeved on the outside of the fixed column, a first bolt is in threaded connection, the spout has been seted up in the front of backup pad, and the spread groove has been seted up to the bottom of spout, and the inside sliding connection of spout has the slider, and the slider cooperatees with the spread groove, and the one end of slider extends to the outside of spout, and the slider is located the outside one end of spout and is fixed with the roof, the top of curtain and the bottom fixed connection of roof.

Preferably, slider and spout are T shape structure, and the bolt hole has been seted up to one side that the roof was kept away from to the slider, and the top threaded connection at the back of backup pad has the second bolt, and the one end of second bolt extends to the inside of spout and coincide with the bolt hole.

Preferably, the both ends of spool all are fixed with the connecting axle, all seted up the mounting hole on the both sides inner wall of mounting groove, the one end of two connecting axles extends to the inside of two mounting holes respectively and is connected with the rotation of one side inner wall of two mounting holes.

Preferably, the two connecting shafts are fixed with torsion springs outside, and two ends of the two torsion springs are respectively fixedly connected with the inner walls of the two mounting holes.

Preferably, a fixed plate is fixed at one end of the fixed column, which is far away from the bottom plate, and the bottom of the fixed plate is fixedly connected with the top of the placing table.

Preferably, the distance between the fixing plate and the bottom plate is greater than the sum of the thickness of the supporting plate and the length of the fixing sleeve.

The utility model has the advantages that:

1. through the cooperation between backup pad, roof, slider, spout, second bolt and the bolt hole, conveniently rise the roof or put down to the convenient buildding to the curtain.

2. Through the cooperation between connecting axle, torsional spring and the mounting hole, reach the purpose of conveniently rolling up the curtain on the spool.

3. Through the cooperation between fixed column, fixed plate, stopper, spacing groove and the fixed plate, reach the convenient backup pad that removes and prevent backup pad pivoted purpose, and through the cooperation between fixed cover and the first bolt, reach the purpose that the restriction backup pad removed.

The utility model discloses rational in infrastructure, design benefit, easy operation not only conveniently builds the curtain, conveniently accomodates the curtain moreover, has reduced the degree of difficulty of building, easily uses widely.

Drawings

Fig. 1 is a side view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a clothing drawing of the top plate and the supporting rod of the present invention.

Fig. 4 is a schematic structural view of the support rod of the present invention.

Reference numbers in the figures: 1 place table, 2 bottom plates, 3 roof, 4 backup pads, 5 sliders, 6 curtains, 7 connecting holes, 8 fixed covers, 9 first bolts, 10 fixed columns, 11 fixed plates, 12 spacing blocks, 13 spacing grooves, 14 second bolts, 15 sliding grooves, 16 reels, 17 torsion springs, 18 connecting shafts, 19 mounting holes, 20 mounting grooves, 21 bolt holes, 22 connecting grooves.

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.

Referring to fig. 1-4, a novel projection screen comprises a placing table 1 and a supporting plate 4, a bottom plate 2 is fixed on the top of the placing table 1, a fixing column 10 is fixed on the back of the bottom plate 2, limiting blocks 12 are fixed on the outer walls of the two sides of the fixing column 10, a mounting groove 20 is formed in the top of the bottom plate 2, a scroll 16 is rotatably connected inside the mounting groove 20, a curtain 6 is wound outside the scroll 16, connecting shafts 18 are fixed on the two ends of the scroll 16, mounting holes 19 are formed in the inner walls of the two sides of the mounting groove 20, one ends of the two connecting shafts 18 respectively extend to the inside of the two mounting holes 19 to be rotatably connected with the inner wall of one side of the two mounting holes 19, torsion springs 17 are fixed on the outside of the two connecting shafts 18, the two ends of the two torsion springs 17 are respectively fixedly connected with the inner walls of the two mounting holes 19, and the torsion springs 17 are, the roller 16 in turn winds the curtain 6 outside the roller 16.

Connecting hole 7 has been seted up to the positive bottom of backup pad 4, has all seted up spacing groove 13 on the both sides inner wall of connecting hole 7, and the one end through connection hole 7 of fixed column 10 extends to the outside of backup pad 4, and one side of two stopper 12 extends to the inside and two spacing groove 13 sliding connection of two spacing grooves 13 respectively, and backup pad 4 emergence rotation can be avoided in the setting of connecting hole 7, stopper 12 and spacing groove 13.

The back of the supporting plate 4 is fixed with a fixed sleeve 8, the fixed sleeve 8 is sleeved outside a fixed column 10, the outer wall of the fixed sleeve 8 is in threaded connection with a first bolt 9, one end of the first bolt 9 extends into the fixed sleeve 8 and is abutted against the fixed column 10, the supporting plate 4 can be placed to move through the cooperation between the first bolt 9 and the fixed sleeve 8, the front of the supporting plate 4 is provided with a sliding groove 15, the bottom of the sliding groove 15 is provided with a connecting groove 22, the inside of the sliding groove 15 is connected with a sliding block 5 in a sliding manner, the sliding block 5 is matched with the connecting groove 22, one end of the sliding block 5 extends to the outside of the sliding groove 15, one end of the sliding block 5, which is positioned outside the sliding groove 15, is fixed with a top plate 3, the top of a curtain 6 is fixedly connected with the bottom of the top plate 3, the sliding block 5 and the sliding groove, one end of the second bolt 14 extends to the inside of the sliding groove 15 to be matched with the bolt hole 21, and the top plate 3 is conveniently fixed through the matching between the second bolt 14 and the bolt hole 21.

The one end that the bottom plate 2 was kept away from to fixed column 10 is fixed with fixed plate 11, the bottom of fixed plate 11 and the top of placing table 1 are linked firmly, the distance between fixed plate 11 and the bottom plate 2 is greater than the thickness of backup pad 4 and the length sum of fixed cover 8, setting up of fixed plate 11 can avoid backup pad 4 to drop from fixed column 10, the distance between fixed plate 11 and the bottom plate 2 is greater than the thickness of backup pad 4 and the length sum of fixed cover 8, make things convenient for stopper 12 to withdraw from the outside of spacing groove 12.

The working principle is as follows: when the curtain 6 is stored, the second bolt 6 is firstly screwed out of the bolt hole 21, then the top plate 3 is moved downwards, under the action of the torsion spring 17, the scroll 16 rotates, the curtain is wound outside the scroll 16, when the top plate 3 is lowered to be in contact with the top of the bottom plate 2, the sliding block 5 is moved to the outside of the connecting groove 22, at the moment, the first bolt 9 is unscrewed, then the supporting plate 4 can be moved to one side far away from the bottom plate 2, so that the sliding block 5 is withdrawn to the outside of the sliding groove 15 through the connecting groove 22, the limiting block 12 is also withdrawn to the outside of the limiting groove 13 gradually along with the movement of the supporting plate 4, when the limiting block 12 is completely withdrawn to the outside of the connecting hole 7, the supporting plate 4 can be rotated to put down the supporting plate 4, thereby completing the storage of the curtain, when the curtain is built, the supporting plate 14 is firstly supported, then the supporting plate 4 is moved, so that, stopper 12 card is in the inside of spacing groove 13, then screws up first bolt 9 again, avoids backup pad 4 to remove, passes through the inside that connecting groove 22 card advances spout 15 with slider 5 again after that, then with roof 3 rebound, when roof 3 removed the top, screws up the inside of bolt hole 21 with second bolt 14 again to fix roof 3, the chicken is accomplished the buildding of curtain.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel projection screen comprises a placing table (1) and a supporting plate (4), and is characterized in that a bottom plate (2) is fixed at the top of the placing table (1), a fixing column (10) is fixed on the back of the bottom plate (2), limiting blocks (12) are fixed on the outer walls of two sides of the fixing column (10), a mounting groove (20) is formed in the top of the bottom plate (2), a scroll (16) is rotatably connected to the inside of the mounting groove (20), a curtain (6) is wound on the outside of the scroll (16), a connecting hole (7) is formed in the bottom of the front surface of the supporting plate (4), limiting grooves (13) are formed in the inner walls of two sides of the connecting hole (7), one end of the fixing column (10) extends to the outside of the supporting plate (4) through the connecting hole (7), and one side of each limiting block (12) extends to the inside of each limiting groove (13) and is in sliding connection, the utility model discloses a screen cloth, including backup pad (4), fixed cover (8), fixed post (10), threaded connection have first bolt (9) on the outer wall of fixed cover (8), and the one end of first bolt (9) extends to the inside and fixed post (10) butt of fixed cover (8), spout (15) have been seted up in the front of backup pad (4), and spread groove (22) have been seted up to the bottom of spout (15), and the inside sliding connection of spout (15) has slider (5), and slider (5) cooperate with spread groove (22), and the one end of slider (5) extends to the outside of spout (15), and the one end that slider (5) are located spout (15) outside is fixed with roof (3), the top of screen cloth (6) and the bottom fixed connection of roof (3).

2. The novel projection screen of claim 1, wherein the sliding block (5) and the sliding groove (15) are both of a T-shaped structure, a bolt hole (21) is formed in one side, away from the top plate (3), of the sliding block (5), a second bolt (14) is connected to the top of the back face of the supporting plate (4) in a threaded mode, and one end of the second bolt (14) extends to the inside of the sliding groove (15) and is matched with the bolt hole (21).

3. The novel projection screen of claim 1, wherein connecting shafts (18) are fixed at both ends of the scroll (16), mounting holes (19) are formed in both inner walls of the mounting groove (20), and one ends of the two connecting shafts (18) respectively extend into the two mounting holes (19) and are rotatably connected with the inner wall of one side of the two mounting holes (19).

4. The novel projection screen of claim 3, wherein the two connecting shafts (18) are fixed with torsion springs (17) at the outer portions, and the two ends of the two torsion springs (17) are respectively fixedly connected with the inner walls of the two mounting holes (19).

5. The novel projection screen of claim 1, wherein a fixing plate (11) is fixed on one end of the fixing column (10) far away from the bottom plate (2), and the bottom of the fixing plate (11) is fixedly connected with the top of the placing table (1).

6. A new type of projection screen, as claimed in claim 5, characterized in that the distance between the fixed plate (11) and the base plate (2) is greater than the sum of the thickness of the support plate (4) and the length of the fixing sleeve (8).