CN217902242U

CN217902242U - Electric cross type floor-pulling projection screen

Info

Publication number: CN217902242U
Application number: CN202221611224.2U
Authority: CN
Inventors: 王国栋
Original assignee: Sichuan Huaying Zhiye Technology Co ltd
Current assignee: Sichuan Huaying Zhiye Technology Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-25
Anticipated expiration: 2032-06-24

Abstract

The utility model relates to a projection curtain technical field specifically is an electronic crossing ground draws projection curtain, including the fixed case, the inside of fixed case is connected with the curtain through elevating system, the bottom of fixed case is provided with the recess, the top left side and the top right side of recess all are provided with two rotary troughs, the inside of two rotary troughs all rotates and is connected with the turning block, the bottom of turning block all is connected with the connecting seat, it is connected with flexible leg to rotate on the connecting seat, the side of flexible leg is provided with first protruding type groove, the inside slip of first protruding type groove is provided with first protruding type piece, the one end that the connecting seat was kept away from to first protruding type piece is connected with compression spring, the side fixedly connected with push pedal of first protruding type piece, the one end fixedly connected with card post that the push pedal is close to the connecting seat, the side of connecting seat evenly is provided with a plurality of draw-in grooves; the novel projection screen is convenient to support the projection screen at a corresponding height, is convenient to fold, is convenient to carry and is convenient to use in various occasions.

Description

Electric cross type floor-pulling projection screen

Technical Field

The utility model relates to a projection curtain technical field specifically is an electronic crossing floor-pulling projection curtain.

Background

With the development of society, projection technology has been widely used in multimedia education systems and office meeting systems, and the projection systems in general multimedia education systems and office meeting systems can be roughly divided into two types: one is a projection screen system, which includes a computer, a projector, and a projection screen; another kind of electronic whiteboard system, it includes computer, projector and electronic whiteboard, there are many electronic cross floor to draw the projection curtain on the market now, it is through the motor drive make the cross expansion bracket extend and contract, make the projection curtain expand from bottom to top, it has portable characteristics, provide convenience for the people who often change the office place.

Through retrieval, the utility model with the Chinese patent number of CN202121059868.0 discloses an electric cross type floor-pulling projection screen, which comprises a cross type telescopic frame and a lifting end and a sliding end, wherein the lifting end is arranged on the cross type telescopic frame; the reelpipe is established at the side of crossing expansion bracket, is equipped with the torsional spring in the reelpipe, and it lacks corresponding bearing structure, is not convenient for support it at corresponding height, needs to reduce to put on the desk or install on the wall body, when carrying it, still need carry corresponding support frame, has increased the quantity of carrying, has increased the degree of difficulty of carrying.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an electronic crossing ground draws projection curtain to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electronic crossing ground draws projection curtain, including the fixed case, the inside of fixed case is connected with the curtain through elevating system, the bottom of fixed case is provided with the recess, the top left side and the top right side of recess all are provided with two rotary tanks, the inside of two rotary tanks all rotates and is connected with the commentaries on classics piece, the bottom of commentaries on classics piece all is connected with the connecting seat, it is connected with flexible leg to rotate on the connecting seat, the side of flexible leg is provided with first protruding type groove, the inside slip in first protruding type groove is provided with first protruding type piece, the one end that the connecting seat was kept away from to first protruding type piece is connected with compression spring, the side fixedly connected with push pedal of first protruding type piece, the one end fixedly connected with card post that the push pedal is close to the connecting seat, the side of connecting seat evenly is provided with a plurality of draw-in grooves, the one end that the push pedal was kept away from to the card post inserts to the inside of corresponding draw-in groove, the side threaded connection that the side of fixed case corresponds with the fragment has the screw, the one end that the screw extended to the inside of rotary tank contacts with the side of commentaries on classics piece.

Preferably, elevating system includes motor and two cranes, two fixed blocks of the inside bottom rear side fixedly connected with of fixed case, the centre of two fixed blocks is rotated and is connected with two-way screw rod, the equal threaded connection in outside left side and the outside right side of two-way screw rod has the regulating block, the bottom of two regulating blocks all with the inside bottom sliding fit of fixed case, the right-hand member at the fixed block that is located the right side is installed to the motor, the output of motor and the right-hand member fixed connection of two-way screw rod, two bottoms of two cranes rotate with the top of two regulating blocks respectively and are connected, the upside of fixed case is provided with the roof, the bottom left side and the bottom right side of roof all are provided with two protruding type grooves of second, the inside in each protruding type groove of second all slides and is provided with the protruding type block of second, two tops of two cranes rotate with the bottom of four protruding type blocks respectively and are connected, the bottom front side of roof and the top fixed connection of curtain.

Furthermore, the inside front side of fixed case is rotated and is connected with around the roller, and the left side outside and the right side outside of winding the roller are all fixed the cover and are equipped with the chi spring, and the one end that the chi spring kept away from around the roller is fixedly connected with the inside wall of fixed case.

Still further, the one end that each flexible leg kept away from the connecting seat all fixedly connected with rubber head.

In a further scheme, the bottom end of the top plate is fixedly connected with a sealing gasket, and the bottom end of the sealing gasket is in contact with the top end of the fixed box.

On the basis of the scheme, the top end of the top plate is fixedly connected with a carrying handle.

(III) advantageous effects

Compared with the prior art, the utility model provides an electronic crossing floor-pulling projection curtain possesses following beneficial effect:

this projection curtain is drawn to electronic crossing ground, the length of the flexible leg of flexible function convenient to adjust through flexible leg, the height of the fixed case of adjustment of being convenient for, rotate the direction of the flexible leg of being convenient for adjust through the inside of commentaries on classics piece at the commentaries on classics groove, rotate through flexible leg and connecting seat and be connected, be convenient for extend the flexible leg or fold, be convenient for adjust the angle of flexible leg simultaneously, be convenient for adjust the position of flexible leg and ground contact point, be convenient for adjust the distance between four landing legs and the ground contact point, improve the stability to the fixed case support, thereby be convenient for support the projection curtain at corresponding height, be convenient for fold it, and is convenient for carry, and be convenient for use in multiple occasion.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the expanded structure of the present invention;

FIG. 4 is a schematic side view of the telescopic leg of the present invention;

fig. 5 is a partially enlarged schematic structural diagram of a point a in fig. 2 according to the present invention.

In the figure: 1. a stationary box; 2. a curtain; 3. rotating the block; 4. a connecting seat; 5. a telescopic leg; 6. a first male block; 7. a compression spring; 8. pushing the plate; 9. clamping the column; 10. a screw; 11. a motor; 12. a lifting frame; 13. a fixed block; 14. a bidirectional screw; 15. an adjusting block; 16. a top plate; 17. a second male block; 18. winding the roller; 19. a scale spring; 20. a rubber head; 21. a gasket; 22. a handle.

Detailed Description

Examples

Referring to fig. 1-5, an electric cross type floor-pulling projection screen comprises a fixed box 1, a curtain 2 is connected to the inside of the fixed box 1 through a lifting mechanism, a groove is arranged at the bottom end of the fixed box 1, two rotating grooves are arranged at the left side of the top end and the right side of the top end of the groove, rotating blocks 3 are rotatably connected to the insides of the two rotating grooves, a connecting seat 4 is connected to the bottom end of each rotating block 3, telescopic legs 5 are rotatably connected to the connecting seat 4, a rubber head 20 is fixedly connected to one end of each telescopic leg 5 far away from the connecting seat 4, friction between the rubber head 20 and the ground is increased, the stability of supporting the fixed box 1 is improved, a first convex groove is arranged at the side end of each telescopic leg 5, a first convex block 6 is arranged inside the first convex groove in a sliding manner, a compression spring 7 is connected to one end of the first convex block 6 far away from the connecting seat 4, and a push plate 8 is fixedly connected to the side end of the first convex block 6, one end of the push plate 8, which is close to the connecting seat 4, is fixedly connected with a clamping column 9, the side end of the connecting seat 4 is uniformly provided with a plurality of clamping grooves, one end of the clamping column 9, which is far away from the push plate 8, is inserted into the corresponding clamping groove, the push plate 8 is pushed to move towards one side far away from the connecting seat 4, the clamping column 9 is separated from the clamping groove, the telescopic leg 5 is convenient to rotate, the first convex block 6, the push plate 8 and the clamping column 9 are pushed to move towards one side close to the connecting seat 4 through the compression spring 7, the clamping column 9 is inserted into the corresponding clamping groove, the telescopic leg 5 is fixed, the side end of the fixing box 1, which corresponds to a brick, is in threaded connection with a screw 10, one end, which extends to the inside of the rotary groove, is in contact with the side end of the rotary block 3, the rotary block 3 is fixed through the screw 10, the length of the telescopic leg 5 is convenient to adjust, height convenient to adjust fixed case 1, rotate the direction of being convenient for adjust flexible leg 5 in the inside of changeing the groove through changeing piece 3, rotate with connecting seat 4 through flexible leg 5 and be connected, be convenient for extend out or fold flexible leg 5, be convenient for adjust the angle of flexible leg 5 simultaneously, be convenient for adjust the position of flexible leg 5 and ground contact point, be convenient for adjust the distance between four landing legs and the ground contact point, improve the stability to fixed case 1 support, thereby be convenient for support the projection screen at corresponding height, be convenient for fold it, and is convenient for carry, be convenient for use in multiple occasion.

It should be further noted that the lifting mechanism includes a motor 11 and two lifting frames 12, the rear side of the inner bottom end of the fixed box 1 is fixedly connected with two fixed blocks 13, the middle of the two fixed blocks 13 is rotatably connected with a two-way screw 14, the outer left side and the outer right side of the two-way screw 14 are both in threaded connection with adjusting blocks 15, the bottom ends of the two adjusting blocks 15 are both in sliding fit with the inner bottom end of the fixed box 1, the motor 11 is installed at the right end of the fixed block 13 on the right side, the output end of the motor 11 is fixedly connected with the right end of the two-way screw 14, the two bottom ends of the two lifting frames 12 are respectively in rotating connection with the top ends of the two adjusting blocks 15, the upper side of the fixed box 1 is provided with a top plate 16, the top end of the top plate 16 is fixedly connected with a carrying handle 22 for carrying the projection screen, the bottom end of the top plate 16 is fixedly connected with a sealing gasket 21, and the bottom end of the sealing gasket 21 is in contact with the top end of the fixed box 1, the sealing performance between the top plate 16 and the fixed box 1 is improved, two second convex grooves are arranged on the left side of the bottom end and the right side of the bottom end of the top plate 16, a second convex block 17 is arranged in each second convex groove in a sliding mode, the two top ends of the two lifting frames 12 are respectively connected with the bottom ends of the four second convex blocks 17 in a rotating mode, the front side of the bottom end of the top plate 16 is fixedly connected with the top end of the curtain 2, the front side of the inside of the fixed box 1 is connected with a winding roller 18 in a rotating mode, the outer portion of the left side and the outer portion of the right side of the winding roller 18 are respectively and fixedly sleeved with a ruler spring 19, one end, far away from the winding roller 18, of the ruler spring 19 is fixedly connected with the inner side wall of the fixed box 1, the motor 11 drives the two-way screw rod 14 to rotate clockwise, the two adjusting blocks 15 move towards the middle position of the two-way screw rod 14, and the top plate 16 moves upwards through the matching of the two adjusting blocks 15, the two lifting frames 12 and the four second convex blocks 17, roof 16 upward movement pulling curtain 2 upward movement to expand curtain 2, then will influence the projection on curtain 2 through the projecting apparatus, when not using, drive two-way screw rod 14 anticlockwise rotation through motor 11, two-way screw rod 14 anticlockwise rotation makes two adjust a piece to both sides removal, and makes roof 16 move down, drives simultaneously through two chi springs 19 and rotates around roller 18, and makes the smooth winding of curtain 2 around the outside of roller 18.

In conclusion, when the electric cross-type floor-pulling projection screen is used, firstly, the handle 22 is lifted to a corresponding position, then the push plate 8 is pushed to move towards one side far away from the connecting seat 4, the clamping column 9 is separated from the clamping groove, the telescopic leg 5 is rotated to a proper angle, then the push plate 8 is loosened, the first convex block 6, the push plate 8 and the clamping column 9 are pushed to move towards one side close to the connecting seat 4 through the compression spring 7, the clamping column 9 is inserted into the corresponding clamping groove to fix the telescopic leg 5, then the screw 10 is loosened, the rotating block 3 rotates in the rotating groove to adjust the direction of the telescopic leg 5, the screw 10 fixes the rotating block 3 after adjustment, then the length of the telescopic leg 5 is adjusted through the telescopic function of the telescopic leg 5, and the fixing box 1 is supported to a corresponding height, then drive two-way screw 14 through motor 11 and rotate clockwise, two regulating blocks 15 move to the position in the middle of two-way screw 14, through two regulating blocks 15, two crane 12 and four cooperation messenger's roof 16 rebound of second protruding type piece 17, roof 16 rebound pulling curtain 2 rebound, make curtain 2 expand, then will influence the projection on curtain 2 through the projecting apparatus, when not using, drive two-way screw 14 anticlockwise rotation through motor 11, two regulation pieces move to both sides are made to two anticlockwise rotation to two-way screw 14, and make roof 16 rebound, drive simultaneously through two chi springs 19 and wind roller 18 and rotate, and make the smooth winding of curtain 2 around the outside of roller 18, then accomodate the landing leg to the inside of recess, thereby complete its work of accomodating.

Claims

1. The utility model provides an electronic crossing ground draws projection curtain, includes fixed case (1), its characterized in that: the curtain (2) is connected with through elevating system in the inside of fixed case (1), the bottom of fixed case (1) is provided with the recess, the top left side and the top right side of recess all are provided with two rotary troughs, the inside in two rotary troughs all rotates and is connected with commentaries on classics piece (3), the bottom of commentaries on classics piece (3) all is connected with connecting seat (4), it is connected with flexible leg (5) to rotate on connecting seat (4), the side of flexible leg (5) is provided with first protruding type groove, the inside slip in first protruding type groove is provided with first protruding type piece (6), the one end that connecting seat (4) were kept away from in first protruding type piece (6) is connected with compression spring (7), the side fixedly connected with push pedal (8) of first protruding type piece (6), one end fixedly connected with card post (9) that push pedal (8) are close to connecting seat (4), the one end that connecting seat (4) were kept away from to card post (9) inserts the inside of corresponding draw-in groove, the position threaded connection that the side of fixed case (1) corresponds with the fragment of brick has screw (10), the inside contact of commentaries on classics piece (3).

2. An electric cross-type floor-mounted projection screen as claimed in claim 1, wherein: elevating system includes motor (11) and two crane (12), two fixed block (13) of the inside bottom rear side fixedly connected with of fixed case (1), the centre of two fixed block (13) is rotated and is connected with two-way screw rod (14), the equal threaded connection in outside left side and the outside right side of two-way screw rod (14) has regulating block (15), the bottom of two regulating block (15) all with the inside bottom sliding fit of fixed case (1), the right-hand member at fixed block (13) that is located the right side is installed in motor (11), the output of motor (11) and the right-hand member fixed connection of two-way screw rod (14), two bottoms of two crane (12) rotate with the top of two regulating block (15) respectively and are connected, the upside of fixed case (1) is provided with roof (16), the bottom left side and the bottom right side of roof (16) all are provided with the protruding type groove of two seconds, the inside in protruding type groove of each second all slides and is provided with protruding type piece (17), two tops of two crane (12) rotate with the bottom of four protruding type blocks (17) respectively and are connected, the bottom of roof (16) and the front side and curtain (2) are connected.

3. An electric cross-type floor-mounted projection screen as claimed in claim 2, wherein: the inside front side of fixed case (1) rotates and is connected with around roller (18), and the left side outside and the right side outside of around roller (18) are all fixed the cover and are equipped with chi spring (19), and the one end of keeping away from around roller (18) of chi spring (19) and the inside wall fixed connection of fixed case (1).

4. An electric cross-type floor-mounted projection screen as claimed in claim 3, wherein: one end of each telescopic leg (5) far away from the connecting seat (4) is fixedly connected with a rubber head (20).

5. An electric cross-type floor-mounted projection screen as claimed in claim 4, wherein: the bottom end of the top plate (16) is fixedly connected with a sealing gasket (21), and the bottom end of the sealing gasket (21) is in contact with the top end of the fixed box (1).

6. An electric cross-type floor-mounted projection screen as claimed in claim 5, wherein: the top end of the top plate (16) is fixedly connected with a carrying handle (22).