CN211979411U

CN211979411U - Giant projection screen with strong wind resistance

Info

Publication number: CN211979411U
Application number: CN202021107443.8U
Authority: CN
Inventors: 宋飞
Original assignee: Beijing Beiaoshengdian International Culture Development Co ltd
Current assignee: Beijing Beiaoshengdian International Culture Development Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2020-11-20
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses a huge projection curtain that anti-wind ability is strong, comprising a base plate, the last fixed surface of bottom plate is connected with the base, the shrinkage pool has been seted up to the upper surface of base, the inside of shrinkage pool is equipped with the support column, the last fixed surface of support column is connected with the fixed block, the last fixed surface of fixed block is connected with the bracing piece, the last fixed surface of bottom plate is connected with symmetrical dead lever, the outer fixed surface of bracing piece is connected with the projection curtain, every the horizontal pole that the equal fixedly connected with equidistance of surface of dead lever was arranged, the top of bottom plate is equipped with two symmetrical connecting rods, every a side that the horizontal pole is close to each other is respectively with the top of every connecting rod and the bottom fixed connection of every. This huge projection screen that anti-wind ability is strong has improved the anti-wind ability of projection screen, and the great problem that leads to the projection screen to appear rocking of wind-force when avoiding the projection to the normal projection of projection screen is used has been guaranteed.

Description

Giant projection screen with strong wind resistance

Technical Field

The utility model relates to a projection curtain technical field specifically is a giant projection curtain that anti-wind ability is strong.

Background

The projection screen is one of the most commonly used products in peripheral equipment of a projector, the projection screen is short for the projection screen, if the projection screen is matched with the projector properly, a high-quality projection effect can be obtained, the projection screen can be generally divided into a reflection type screen and a transmission type screen, the reflection type screen is used for front projection, the transmission type screen is used for rear projection, the front projection screen is divided into a plane screen and an arc type screen, the plane screen can be divided into a glass bead screen, a metal screen, an embossed plastic screen, an elastic screen and the like in terms of texture, the giant projection screen has defects in projection, the wind resistance is poor, the large wind power during projection easily enables the projection screen to shake, and therefore the normal use of the projection screen is affected, and the giant projection screen with strong wind resistance is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a giant projection curtain that anti-wind ability is strong 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 giant projection screen with strong wind resistance comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with a base, the upper surface of the base is provided with a concave hole, support columns are arranged inside the concave hole, the upper surface of each support column is fixedly connected with a fixed block, the upper surface of each fixed block is fixedly connected with a support rod, the upper surface of the bottom plate is fixedly connected with symmetrical fixed rods, the outer surface of each support rod is fixedly connected with a projection screen, the outer surface of each fixed rod is fixedly connected with cross rods which are arranged at equal intervals, two symmetrical connecting rods are arranged above the bottom plate, one side surface, close to each other, of each cross rod is respectively fixedly connected with the top end of each connecting rod and the bottom end of each connecting rod, the upper surface of the bottom plate is provided with symmetrical fixed holes, and fixed nails are arranged inside each, every the back of horizontal pole all with the positive fixed connection of projection curtain, two screw holes have been seted up to the inner wall of shrinkage pool, two thread grooves, every have been seted up to the surface of support column the equal threaded connection in inner wall of screw hole has fixing bolt, every fixing bolt's left end all extends to the inside of every thread groove and with the inner wall threaded connection of every thread groove.

Preferably, the left side surface and the right side surface of the base are fixedly connected with reinforcing blocks, and the bottom surface of each reinforcing block is fixedly connected with the upper surface of the bottom plate.

Preferably, the inner bottom wall of each thread groove is fixedly connected with a protection pad, and the right side surface of each protection pad is in contact with the left end of each fixing bolt.

Preferably, the inner bottom wall of the concave hole is fixedly connected with a positioning pad, and the bottom surface of the supporting column is in contact with the upper surface of the positioning pad.

Preferably, two reinforcing rods are arranged above the bottom plate, and the left end and the right end of each reinforcing rod are fixedly connected with one side face, close to each other, of each connecting rod respectively.

Preferably, two the equal fixedly connected with fixed plate of one side that the dead lever is close to each other, every the upper surface of fixed plate all with the bottom surface fixed connection of horizontal pole.

Advantageous effects

The utility model discloses possess following beneficial effect: the giant projection screen with strong wind resistance can enhance the stability of the bottom of the projection screen and prevent the shaking phenomenon through the bottom plate arranged and the matching between the bottom plate and the base, can deepen the connection between the projection screen and the support frame through the cross rod arranged and the matching between the support rod and the connecting rod, can enable the projection screen to be connected more firmly, thereby enabling the projection screen to be more stable during projection, improving the wind resistance of the projection screen, avoiding the problem that the projection screen shakes due to the larger wind force during projection, ensuring the normal projection use of the projection screen, can enable the connection between the bottom plate and the bottom surface to be firmer through the fixing holes arranged at the bottom plate and the matching between the fixing nails, improving the stability of the bottom of the support frame, and can penetrate through the threaded holes to extend to the inside of the threaded groove through the fixing bolts arranged, can deepen the connection between support column and the base, prevent to appear rocking the problem of slope.

Drawings

FIG. 1 is a schematic structural view of a giant projection screen with strong wind resistance according to the present invention;

FIG. 2 is a rear sectional view of the bottom plate of the present invention;

FIG. 3 is a front sectional view of the base of the present invention;

fig. 4 is an enlarged schematic view of a structure shown in fig. 3 according to the present invention.

In the figure: 1. a base plate; 2. a base; 3. a fixing hole; 4. fixing nails; 5. a projection screen; 6. a fixed block; 7. fixing the rod; 8. a support pillar; 9. a cross bar; 10. a support bar; 11. concave holes; 12. fixing the bolt; 13. a threaded hole; 14. a thread groove; 15. a reinforcing block; 16. a reinforcing rod; 17. a fixing plate; 18. a positioning pad; 19. a protective pad; 20. a connecting rod.

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 giant projection screen with strong wind resistance capability comprises a bottom plate 1, wherein the upper surface of the bottom plate 1 is fixedly connected with a base 2, the upper surface of the base 2 is provided with a concave hole 11, a support column 8 is arranged inside the concave hole 11, the upper surface of the support column 8 is fixedly connected with a fixed block 6, the upper surface of the fixed block 6 is fixedly connected with a support rod 10, the upper surface of the bottom plate 1 is fixedly connected with symmetrical fixed rods 7, the outer surface of the support rod 10 is fixedly connected with a projection screen 5, the outer surface of each fixed rod 7 is fixedly connected with cross rods 9 which are arranged at equal intervals, two symmetrical connecting rods 20 are arranged above the bottom plate 1, one side surface, close to each other, of each cross rod 9 is fixedly connected with the top end of each connecting rod 20 and the bottom end of each connecting rod 20 respectively, the upper surface of the bottom plate 1 is provided with, the back of every horizontal pole 9 all with the front fixed connection of projection curtain 5, two screw holes 13 have been seted up to the inner wall of shrinkage pool 11, two thread grooves 14 have been seted up to the surface of support column 8, the equal threaded connection of inner wall of every screw hole 13 has fixing bolt 12, every fixing bolt 12's left end all extend to every thread groove 14 inside and with every thread groove 14's inner wall threaded connection.

Base 2's the equal fixedly connected with of the left and right sides face adds the anchor block 15, every adds the bottom surface of anchor block 15 all with bottom plate 1's last fixed surface connection, can deepen being connected between base 2 and the bottom plate 1, it is more firm to make both connect, the equal fixedly connected with of the interior diapire of every thread groove 14 protects pad 19, every protection pad 19's the right flank all contacts with every fixing bolt 12's left end mutually, can protect the collision between fixing bolt 12 and the thread groove 14, certain damage has been reduced, the interior diapire fixedly connected with locating pad 18 of shrinkage pool 11, the bottom surface of support column 8 contacts with the upper surface of locating pad 18, can fix a position the position that support column 8 descends, be convenient for support column 8 installs.

The top of bottom plate 1 is equipped with two anchor strut 16, a side fixed connection that both ends are close to each other with every connecting rod 20 respectively about every anchor strut 16, connection between the connecting rod 20 has been deepened, it is more firm to make its connection, the equal fixedly connected with fixed plate 17 in a side that two dead levers 7 are close to each other, the upper surface of every fixed plate 17 all with the bottom surface fixed connection of horizontal pole 9, the connection effect of dead lever 7 with the horizontal pole 9 bottom surface has been improved, the life of support frame has been prolonged.

It should be noted that, the utility model relates to a giant projection curtain that anti-wind ability is strong, at first in extending to base 2's shrinkage pool 11 with support column 8, then pass threaded hole 13 with fixing bolt 12 after that, and extend to in support column 8's the thread groove 14, thereby can deepen being connected between support column 8 and the base 2, and then install projection curtain 5 on the link on support column 8 again, through being connected between link and the projection curtain 5, so can make projection curtain 5 more firm, then pass fixed orifices 3 and extend ground department with staple 4 again after that, thereby deepen the stability of bottom when projection curtain 5 projects, will make projection curtain 5 better anti-wind when the projection.

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

1. The utility model provides a huge projection screen that anti-wind ability is strong, includes bottom plate (1), its characterized in that: the upper surface of the bottom plate (1) is fixedly connected with a base (2), a concave hole (11) is formed in the upper surface of the base (2), a support column (8) is arranged inside the concave hole (11), a fixed block (6) is fixedly connected with the upper surface of the support column (8), a support rod (10) is fixedly connected with the upper surface of the fixed block (6), symmetrical fixing rods (7) are fixedly connected with the upper surface of the bottom plate (1), a projection screen (5) is fixedly connected with the outer surface of the support rod (10), cross rods (9) which are arranged equidistantly are fixedly connected with the outer surface of each fixing rod (7), two symmetrical connecting rods (20) are arranged above the bottom plate (1), and a side surface, close to each other, of each cross rod (9) is respectively fixedly connected with the top end of each connecting rod (20) and the bottom end of each connecting rod (20, symmetrical fixed orifices (3), every are seted up to the upper surface of bottom plate (1) the inside of fixed orifices (3) all is equipped with staple (4), every the back of horizontal pole (9) all with the front fixed connection of projection curtain (5), two screw holes (13) have been seted up to the inner wall of shrinkage pool (11), two thread grooves (14), every have been seted up to the surface of support column (8) the equal threaded connection in inner wall of screw hole (13) has fixing bolt (12), every the left end of fixing bolt (12) all extend to the inside of every thread groove (14) and with the inner wall threaded connection of every thread groove (14).

2. The giant projection screen with strong wind resistance of claim 1, wherein: the reinforcing blocks (15) are fixedly connected to the left side face and the right side face of the base (2), and the bottom face of each reinforcing block (15) is fixedly connected with the upper surface of the bottom plate (1).

3. The giant projection screen with strong wind resistance of claim 1, wherein: the inner bottom wall of each thread groove (14) is fixedly connected with a protection pad (19), and the right side face of each protection pad (19) is in contact with the left end of each fixing bolt (12).

4. The giant projection screen with strong wind resistance of claim 1, wherein: the inner bottom wall fixedly connected with locating pad (18) of shrinkage pool (11), the bottom surface of support column (8) contacts with the upper surface of locating pad (18).

5. The giant projection screen with strong wind resistance of claim 1, wherein: two reinforcing rods (16) are arranged above the bottom plate (1), and the left end and the right end of each reinforcing rod (16) are fixedly connected with one side face, close to each other, of each connecting rod (20) respectively.

6. The giant projection screen with strong wind resistance of claim 1, wherein: two equal fixedly connected with fixed plate (17) in the side that dead lever (7) are close to each other, every the upper surface of fixed plate (17) all with the bottom surface fixed connection of horizontal pole (9).