CN212181675U - Image playing device for safety education - Google Patents

Abstract

The utility model discloses an image playing device for safety education, which comprises a base, the top of the base is provided with two sliding grooves, and the inner walls of both sides of the sliding grooves are fixedly connected with the same electric sliding rail. A sliding block is slidably connected to the outer wall of the electric slide rail, a connecting rod is hinged on the top outer wall of the sliding block, and the same mounting plate is hinged on the top outer wall of the two connecting rods. When the utility model plays the video, the electric slide rail is used to move the two sliders to the middle, and then the mounting plate is pushed upwards, and vice versa, it descends, so as to achieve the purpose of adjusting the height of the screen. Adjust the angle of the projector by adjusting the length of the electric push rod to ensure that the image can be projected on the screen. After the playback is completed, use the rotating motor to drive the screen reel to rotate, so as to rewind the screen to the screen take-up reel to avoid the long-term use of the screen. Exposure to air, falling on dust.

Description

A video playback device for safety education

technical field

The utility model relates to the field of video technology, in particular to a video playback device for safety education.

Background technique

Image is the material representation of human visual perception. Images can be acquired by optical devices, such as cameras, mirrors, telescopes, and microscopes; they can also be created artificially, such as hand-painted images.

Video playback equipment can visualize and concretize knowledge. Therefore, video playback equipment is often used for education. At present, the existing video playback devices for safety education usually use projectors. If the height of the curtain is adjusted in some occasions, the height of the curtain is too low, and most of the viewers in the back row will not be able to see all the curtains due to line of sight problems, which will affect the viewing effect of the viewers. Therefore, it is urgent to design an impact for safety education. Playback device to solve the above problem.

Utility model content

The purpose of the utility model is to solve the shortcomings of the prior art, and proposes a video playback device for safety education.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

An image playback device for safety education, comprising a base, the top of the base is provided with two chute, and the inner walls on both sides of the chute are fixedly connected with the same electric sliding rail, the outer wall of the electric sliding rail A sliding block is slidably connected, a connecting rod is hinged on the top outer wall of the sliding block, and the same mounting plate is hinged on the top outer wall of the two connecting rods.

Further, an outer wall of one side of the installation plate is provided with an installation groove, and the inner wall of one side of the installation groove is rotatably connected with a curtain rewinding disc, the circumferential outer wall of the curtain winding disc is fixedly connected with a curtain, and the outer wall of one side of the installation plate is fixed. A rotating motor is connected, and one end of the output shaft of the rotating motor is connected with one side outer wall of the curtain take-up reel by bolts.

Further, a counterweight bar is fixedly connected to one end of the bottom of the screen.

Further, a counterweight block is fixedly connected to one side outer wall of the base.

Further, moving wheels are fixedly connected to the four corners of the bottom outer wall of the base.

Further, the top outer wall of the mounting plate is fixedly connected with a connecting frame, and one end of the connecting frame is hinged with a support plate, one end of the top outer wall of the support plate is fixedly connected with a projector, and the other end of the top outer wall of the support plate is hinged with an electric push rod. , One end of the piston rod of the electric push rod is hinged with one side of the outer wall of the connecting frame.

Further, the top outer wall of the base is fixedly connected with a mounting block, and the top outer wall of the mounting block is provided with a slot, one side of the outer wall of the mounting block is provided with a threaded hole, and the inner wall of the threaded hole is threadedly connected with a fixing knob. The bottom outer wall of the device is fixedly connected with a card block, and the card block is adapted to the card slot.

The beneficial effects of the present utility model are:

1. Through the set electric slide rails, sliders, connecting rods, bases, mounting plates and moving wheels, during video playback, move the device to the designated position through the moving wheels, and use the electric slide rails to move the two sliders to the middle , and then drive the connecting rod to shrink toward the middle. Since the two ends of the connecting rod are hinged with the mounting plate, the mounting plate is pushed upward, and vice versa, it is lowered, thus achieving the purpose of adjusting the height of the curtain.

2. Through the set rotating motor, curtain reel, electric push rod, support plate and projector, when playing, first adjust the angle of the projector by adjusting the length of the electric push rod to ensure that the image can be projected on the screen. After the playback is completed, use the rotating motor to drive the curtain rewinding disc to rotate, so as to rewind the curtain onto the curtain winding disc, so as to prevent the curtain from being exposed to the air for a long time and falling on dust, which will affect the viewing effect of the viewer.

3. Through the set installation block, fixed knob, card block and card slot, at the end of the playback, use the electric slide rail and slider to lower the installation plate to the lowest position, and then insert the card block into the slot, rotate the fixed knob, The clamping block is fixed in the clamping slot to prevent the mounting plate from shaking during the process of moving the device, causing damage to the device and reducing the service life of the device.

Description of drawings

1 is a schematic diagram of the front structure of a video playback device for safety education proposed in Embodiment 1 of the present invention;

2 is a partial frontal structural cross-sectional view of a video playback device for safety education proposed in Embodiment 1 of the present utility model;

FIG. 3 is a partial front structural schematic diagram of a video playback device for safety education proposed in Embodiment 2 of the present invention.

In the picture: 1-base, 2-slider, 3-electric sliding rail, 4-moving wheel, 5-connecting rod, 6-counterweight block, 7-counterweight bar, 8-curtain, 9-projector, 10 -Support plate, 11-electric push rod, 12-curtain reel, 13-connecting frame, 14-rotating motor, 15-installation plate, 16-fixing knob, 17-block, 18-installation block.

Detailed ways

The technical solution of the present patent will be described in further detail below in conjunction with specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present patent, but should not be construed as a limitation on the present patent.

In the description of this patent, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present patent and simplifying the description, rather than indicating or implying The device or element referred to must have, be constructed, and operate in a particular orientation and is not to be construed as a limitation of this patent.

In the description of this patent, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "arranged" should be understood in a broad sense. , it can also be detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific situations.

Example 1

Referring to Figures 1 and 2, a video playback device for safety education includes a base 1, the top of the base 1 is provided with two chutes, and the inner walls on both sides of the chutes are connected with the same electric sliding rail by bolts. 3. The slider 2 is slidably connected to the outer wall of the electric slide rail 3 , and the top outer wall of the slider 2 is hinged with a connecting rod 5 , and the top outer walls of the two connecting rods 5 are hinged with the same mounting plate 15 .

One side of the outer wall of the mounting plate 15 is provided with an installation groove, and the inner wall of one side of the installation groove is rotatably connected with the curtain reel 12, and the outer peripheral wall of the curtain reel 12 is connected with the curtain 8 by bolts. The side outer wall is connected with a rotating motor 14 by bolts, and one end of the output shaft of the rotating motor 14 is connected with one side outer wall of the curtain reel 12 by bolts.

Wherein, the bottom end of the curtain 8 is connected with a counterweight bar 7 by bolts, so as to prevent the curtain 8 from being lifted during the playing process and affecting the viewing effect.

Wherein, one side outer wall of the base 1 is connected with a counterweight 6 by bolts, so as to increase the stability of the device.

Among them, the four corners of the bottom outer wall of the base 1 are connected with moving wheels 4 by bolts, which is convenient for moving the device.

Wherein, the top outer wall of the mounting plate 15 is connected with the connecting frame 13 by bolts, and one end of the connecting frame 13 is hinged with the supporting plate 10, one end of the top outer wall of the supporting plate 10 is connected with the projector 9 by bolts, and the other top outer wall of the supporting plate 10 is connected with the projector 9. One end of the electric push rod 11 is hingedly connected, and one end of the piston rod of the electric push rod 11 is hinged with one side outer wall of the connecting frame 13 .

Working principle: The control method of the present invention is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art. The supply of power also belongs to the common knowledge in the art, and the main It is used to protect the mechanical device, so the utility model will not explain the control method and circuit connection in detail. When playing the video, the device is moved to the designated position by the moving wheel 4, and the two sliders 2 are moved to the middle by the electric sliding rail 3. , and then drive the connecting rod 5 to shrink to the middle, because the two ends of the connecting rod 5 are hinged with the sliding block 2 and the mounting plate 15, and then push the mounting plate 15 to move upward, and vice versa, it descends, so as to achieve the purpose of adjusting the height of the curtain, Adjust the angle of the projector 9 by adjusting the length of the electric push rod 11 to ensure that the image can be projected on the curtain 8. After the playback is completed, the rotating motor 14 is used to drive the curtain winding disc 12 to rotate, thereby winding the curtain 8 to the curtain winding On the disk 12, it is avoided that the screen 8 is exposed to the air for a long time, and dust falls on it, which affects the viewing effect of the viewer.

Example 2

3, a video playback device for safety education, compared with Embodiment 1, the top outer wall of the base 1 is connected with a mounting block 18 by bolts, and the top outer wall of the mounting block 18 is provided with a slot, and the mounting block 18 A threaded hole is opened on the outer wall of one side of the threaded hole, the inner wall of the threaded hole is threaded with a fixing knob 16, and the bottom outer wall of the mounting plate 15 is connected with a clamping block 17 by bolts, and the clamping block 17 is adapted to the clamping slot.

Working principle: When the playback is over, use the electric slide rail 3 and the slider 2 to lower the mounting plate 15 to the lowest position, then insert the block 17 into the slot, rotate the fixing knob 16, and fix the block 17 in the slot, During the process of moving the device, the mounting plate 15 is prevented from shaking, causing damage to the device and reducing the service life of the device.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. The utility model provides an image play device for safety education, includes base (1), its characterized in that, open at the top of base (1) has two spouts, and the equal fixedly connected with of both sides inner wall of spout same electronic slide rail (3), the outer wall sliding connection of electronic slide rail (3) has slider (2), and the top outer wall of slider (2) articulates there is connecting rod (5), two the top outer wall of connecting rod (5) articulates there is same mounting panel (15).

2. The image playing device for safety education as claimed in claim 1, wherein the mounting plate (15) is provided with a mounting groove on one side of its outer wall, and the curtain winding disk (12) is rotatably connected to one side of its inner wall, the curtain (8) is fixedly connected to the outer wall of the curtain winding disk (12), the rotating motor (14) is fixedly connected to one side of the outer wall of the mounting plate (15), and one end of the output shaft of the rotating motor (14) is connected to one side of the outer wall of the curtain winding disk (12) by a bolt.

3. An image playback apparatus for safety education as claimed in claim 2, wherein a weight bar (7) is fixedly connected to one end of the bottom of the curtain (8).

4. The video player for safety education as claimed in any one of claims 1 to 3, wherein a weight block (6) is fixedly connected to the outer wall of one side of the base (1).

5. The video player for safety education as claimed in claim 4, wherein the moving wheels (4) are fixedly connected to the four corners of the outer wall of the bottom of the base (1).

6. The image playing device for safety education as claimed in claim 5, wherein the top outer wall of the mounting plate (15) is fixedly connected with a connecting frame (13), one end of the connecting frame (13) is hinged with a supporting plate (10), one end of the top outer wall of the supporting plate (10) is fixedly connected with a projector (9), the other end of the top outer wall of the supporting plate (10) is hinged with an electric push rod (11), and one end of a piston rod of the electric push rod (11) is hinged with one side outer wall of the connecting frame (13).

7. The image playing device for safety education as claimed in claim 6, wherein the top outer wall of the base (1) is fixedly connected with a mounting block (18), the top outer wall of the mounting block (18) is provided with a clamping groove, the outer wall of one side of the mounting block (18) is provided with a threaded hole, the inner wall of the threaded hole is connected with a fixing knob (16) through a thread, the bottom outer wall of the mounting plate (15) is fixedly connected with a clamping block (17), and the clamping block (17) is matched with the clamping groove.

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