CN210090901U

CN210090901U - Projection curtain fixing device for computer teaching

Info

Publication number: CN210090901U
Application number: CN201920281886.XU
Authority: CN
Inventors: 郑红波; 黄高英; 梁振; 张萍
Original assignee: Lishui Ersan Network Co Ltd
Current assignee: LAIZHOU STARLIGHT SCREEN Co.,Ltd.
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-02-18
Anticipated expiration: 2029-03-06

Abstract

The utility model discloses a projection curtain fixing device is used in computer teaching, including fixed block one, magnetic path, draw-in groove, fixed plate, second fixed plate, gyro wheel, standing groove and carriage release lever, one side of fixed block one is provided with first telescopic link, the outside of first telescopic link is provided with the second telescopic link, one side that the second telescopic link is close to first telescopic link is provided with first slider, first slider is provided with first spout with the junction at first telescopic link, wherein, the magnetic path sets up in one side of fixed block one, and the plane at magnetic path place is mutually perpendicular with the plane at first telescopic link place, the draw-in groove set up in the inside at fixed block one. This projection curtain fixing device for computer teaching through the slip of first slider and first spout, lets stretch out and draw back between first telescopic link and the second telescopic link, has changed the overall length of first telescopic link and second telescopic link, can make things convenient for the device to be fixed in the bottom of the curtain of different width like this.

Description

Projection curtain fixing device for computer teaching

Technical Field

The utility model relates to a projection curtain technical field specifically is a computer teaching is with projection curtain fixing device.

Background

In the use process of the multimedia projector, a projection curtain is used in combination, and the projection curtain is a tool used for displaying images and video files on occasions such as movies, offices, home theaters, large conferences and the like.

In the time of teaching, general projection curtain installs in the top of blackboard, can conveniently teach like this and use, and general projection curtain need place perpendicularly when using, but can receive the influence the condition that appears rocking sometimes, needs a fixing device during this time.

However, most of the projection curtain fixing devices for computer teaching in the market are inconvenient to fix at the bottom of the curtain when in use and cannot be conveniently folded.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projection curtain fixing device is used in computer teaching to solve the inconvenient bottom that is fixed in the curtain of the projection curtain fixing device is used in computer teaching on the existing market that above-mentioned background art provided, and can not make things convenient for the problem of packing up of curtain.

In order to achieve the above object, the utility model provides a following technical scheme: a projection curtain fixing device for computer teaching comprises a first fixing block, a magnetic block, a clamping groove, a fixing plate, a second fixing plate, a roller, a placing groove and a moving rod, wherein a first telescopic rod is arranged on one side of the first fixing block, a second telescopic rod is arranged on the outer side of the first telescopic rod, a first sliding block is arranged on one side, close to the first telescopic rod, of the second telescopic rod, a first sliding groove is formed in the joint of the first sliding block and the first telescopic rod, and a first sliding groove is formed in the joint of the first sliding block and the first telescopic rod,

the fixing device comprises a fixing block I, a clamping groove I, a fixing plate I, a first telescopic rod I, a first rotating shaft and a rotating spring, wherein the magnetic block is arranged on one side of the fixing block I, the plane of the magnetic block is perpendicular to the plane of the first telescopic rod, the clamping groove I is arranged inside the fixing block I, the fixing plate is arranged on one side, away from the first telescopic rod, of the fixing block I, the connecting position of the fixing plate and the fixing block I is provided with the first;

the second fixing plate is arranged on one side, away from the first fixing plate, of the fixing plate, a second rotating shaft is arranged at the joint of the second fixing plate and the fixing plate, the roller is arranged on one side, away from the second rotating shaft, of the second fixing plate, and the placing groove is arranged at the joint of the fixing plate and the second fixing plate;

the moving rod is arranged on one side, far away from the magnetic block, of the first fixing block, a second fixing block is arranged on one side, close to the clamping groove, of the moving rod, a third sliding block is arranged at the joint of the second fixing block and the first fixing block, and a third sliding groove is formed at the joint of the third sliding block and the first fixing block.

Preferably, the cross-sectional shape and size of the first sliding block are matched with the cross-sectional shape and size of the first sliding chute.

Preferably, the fixing plate is rotatably connected with the first fixing block through a first rotating shaft.

Preferably, the fixed plate, the first rotating shaft, the rotating spring, the second fixed plate, the second rotating shaft and the idler wheel are arranged in two groups, and the 2 groups of fixed plates, the first rotating shaft, the rotating spring, the second fixed plate, the second rotating shaft and the idler wheel are symmetrically distributed on two sides of the first fixed block.

Preferably, the maximum angle of rotation of the second fixing plate with the fixing plate through the second rotating shaft is 90 °.

Preferably, the connecting structure of the moving rod and the second fixed block is a threaded structure.

Compared with the prior art, the beneficial effects of the utility model are that: this computer teaching is with projection curtain fixing device:

1. the device can extend and retract between the first telescopic rod and the second telescopic rod through the sliding of the first sliding block and the first sliding chute, so that the total length of the first telescopic rod and the second telescopic rod is changed, and the device can be conveniently fixed at the bottoms of curtains with different widths;

2. the second fixing plate is opened through rotation of the second rotating shaft, and the magnetic block is separated from the blackboard, so that the device can move through the roller, and the curtain can be conveniently folded;

3. the rotary moving rod pushes the second fixing block to move, and the fixing block moves towards the inside of the clamping groove through the sliding of the third sliding block and the third sliding groove, so that the device can be installed and fixed.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

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

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

fig. 5 is a schematic view of a part a of the enlarged structure of fig. 1 according to the present invention.

In the figure: 1. a first fixed block; 2. a first telescopic rod; 3. a second telescopic rod; 4. a first slider; 5. a first chute; 6. a magnetic block; 7. a card slot; 8. a fixing plate; 9. a first rotating shaft; 10. a rotation spring; 11. A second fixing plate; 12. a second rotating shaft; 13. a roller; 14. a placement groove; 15. a travel bar; 16. a second fixed block; 17. a third slider; 18. and a third chute.

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. 1-5, the present invention provides a technical solution: a projection curtain fixing device for computer teaching comprises a first fixing block 1, a first telescopic rod 2, a second telescopic rod 3, a first sliding block 4, a first sliding groove 5, a magnetic block 6, a clamping groove 7, a fixing plate 8, a first rotating shaft 9, a rotating spring 10, a second fixing plate 11, a second rotating shaft 12, a roller 13, a placing groove 14, a moving rod 15, a second fixing block 16, a third sliding block 17 and a third sliding groove 18, wherein the first telescopic rod 2 is arranged on one side of the first fixing block 1, the second telescopic rod 3 is arranged on the outer side of the first telescopic rod 2, the first sliding block 4 is arranged on one side, close to the first telescopic rod 2, of the second telescopic rod 3, the sectional shape and the size of the first sliding block 4 are matched with those of the first sliding groove 5, so that the telescopic movement between the first telescopic rod 2 and the second telescopic rod 3 is facilitated, the first sliding groove 5 is arranged at the joint of the first sliding block 4 and the first telescopic rod 2, wherein the content of the first and second substances,

the magnetic block 6 is arranged on one side of the first fixed block 1, the plane of the magnetic block 6 is perpendicular to the plane of the first telescopic rod 2, the clamping groove 7 is arranged inside the first fixing block 1, the fixing plate 8 is arranged on one side of the first fixing block 1 far away from the first telescopic rod 2, the fixing plate 8 is rotatably connected with the first fixing block 1 through a first rotating shaft 9, so that the clamping groove 7 can be conveniently opened, two groups of fixing plates 8, a first rotating shaft 9, a rotating spring 10, a second fixing plate 11, a second rotating shaft 12 and rollers 13 are arranged, and 2 groups of fixing plates 8, a first rotating shaft 9, a rotating spring 10, a second fixing plate 11, a second rotating shaft 12 and rollers 13 are symmetrically distributed at two sides of the first fixing block 1, therefore, the device can be conveniently installed and fixed, a first rotating shaft 9 is arranged at the joint of the fixing plate 8 and the fixing block I1, and a rotating spring 10 is arranged inside the first rotating shaft 9;

the second fixing plate 11 is arranged on one side, far away from the first fixing block 1, of the fixing plate 8, the maximum rotation angle of the second fixing plate 11 and the fixing plate 8 is 90 degrees through the second rotating shaft 12, so that when the device is moved through the roller 13, the roller 13 can be perpendicular to the surface of a blackboard, the second rotating shaft 12 is arranged at the joint of the second fixing plate 11 and the fixing plate 8, the roller 13 is arranged on one side, far away from the second rotating shaft 12, of the second fixing plate 11, and the placing groove 14 is arranged at the joint of the fixing plate 8 and the second fixing plate 11;

the movable rod 15 sets up in one side that magnetic block 6 was kept away from to fixed block 1, movable rod 15 is the helicitic texture with the connection structure of fixed block two 16, can remove fixed block two 16 like this when movable rod 15 is rotatory, lets fixed block two 16 fix the bottom of curtain, one side that movable rod 15 is close to draw-in groove 7 is provided with fixed block two 16, fixed block two 16 is provided with third slider 17 with the junction of fixed block 1, third slider 17 is provided with third spout 18 with the junction of fixed block 1.

The working principle is as follows: when the projection curtain fixing device for computer teaching is used, the device is fixed at a required place, the device can be fixed at the bottom of a curtain through a clamping groove 7 when in use, a fixing plate 8 is driven to rotate through a rotating spring 10 in a first rotating shaft 9, the fixing plate 8 blocks two ends of the clamping groove 7, then a moving rod 15 is rotated, a threaded structure of the moving rod 15 is meshed with a threaded structure of a second fixing block 16, the second fixing block 16 can be pushed when the moving rod 15 rotates, the second fixing block 16 moves towards the inside of the clamping groove 7 through sliding of a third sliding block 17 and a third sliding groove 18, the device can be installed and fixed, a magnetic block 6 of the device can generate suction with a blackboard, the bottom of the curtain can be fixed on the surface of the blackboard, the second fixing plate 11 can be opened through rotation of a second rotating shaft 12 when the curtain is folded, let gyro wheel 13 contact blackboard, can let magnetic path 6 and blackboard separation through gyro wheel 13 like this, can reduce the suction of magnetic path 6 to the blackboard like this, when the curtain is packed up like this, the device can remove through gyro wheel 13, the packing up of curtain has been made things convenient for, the device lets stretch out and draw back between first telescopic link 2 and the second telescopic link 3 through the slip of first slider 4 and first spout 5, can make things convenient for the device to be fixed in the bottom of the curtain of different width like this, this is the use of this projection curtain fixing device for computer teaching, the content that does not make detailed description in this description belongs to the well-known prior art of technical staff in the field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a projection curtain fixing device for computer teaching, includes fixed block (1), magnetic path (6), draw-in groove (7), fixed plate (8), second fixed plate (11), gyro wheel (13), standing groove (14) and carriage release lever (15), its characterized in that: a first telescopic rod (2) is arranged on one side of the first fixing block (1), a second telescopic rod (3) is arranged on the outer side of the first telescopic rod (2), a first sliding block (4) is arranged on one side, close to the first telescopic rod (2), of the second telescopic rod (3), a first sliding groove (5) is arranged at the joint of the first sliding block (4) and the first telescopic rod (2), wherein,

the magnetic block (6) is arranged on one side of the first fixing block (1), the plane where the magnetic block (6) is located is perpendicular to the plane where the first telescopic rod (2) is located, the clamping groove (7) is arranged inside the first fixing block (1), the fixing plate (8) is arranged on one side, away from the first telescopic rod (2), of the first fixing block (1), a first rotating shaft (9) is arranged at the joint of the fixing plate (8) and the first fixing block (1), and a rotating spring (10) is arranged inside the first rotating shaft (9);

the second fixing plate (11) is arranged on one side, far away from the first fixing block (1), of the fixing plate (8), a second rotating shaft (12) is arranged at the joint of the second fixing plate (11) and the fixing plate (8), the roller (13) is arranged on one side, far away from the second rotating shaft (12), of the second fixing plate (11), and the placing groove (14) is arranged at the joint of the fixing plate (8) and the second fixing plate (11);

the moving rod (15) is arranged on one side, away from the magnetic block (6), of the first fixing block (1), a second fixing block (16) is arranged on one side, close to the clamping groove (7), of the moving rod (15), a third sliding block (17) is arranged at the joint of the second fixing block (16) and the first fixing block (1), and a third sliding groove (18) is arranged at the joint of the third sliding block (17) and the first fixing block (1).

2. The projection curtain fixing device for computer teaching according to claim 1, wherein: the cross section shape and size of the first sliding block (4) are matched with those of the first sliding chute (5).

3. The projection curtain fixing device for computer teaching according to claim 1, wherein: and the fixed plate (8) is rotatably connected with the first fixed block (1) through a first rotating shaft (9).

4. The projection curtain fixing device for computer teaching according to claim 1, wherein: the fixing plate (8), the first rotating shaft (9), the rotating spring (10), the second fixing plate (11), the second rotating shaft (12) and the idler wheel (13) are arranged in two groups, and the 2 groups of fixing plates (8), the first rotating shaft (9), the rotating spring (10), the second fixing plate (11), the second rotating shaft (12) and the idler wheel (13) are symmetrically distributed on two sides of the first fixing block (1).

5. The projection curtain fixing device for computer teaching according to claim 1, wherein: the maximum angle of rotation of the second fixing plate (11) and the fixing plate (8) through the second rotating shaft (12) is 90 degrees.

6. The projection curtain fixing device for computer teaching according to claim 1, wherein: and the connecting structure of the moving rod (15) and the second fixed block (16) is a threaded structure.