CN211293594U - English teaching is with projecting apparatus curtain of automatic clearance dust - Google Patents

Abstract

The utility model discloses an english teaching is with projecting apparatus curtain of automatic clearance dust, including the main casing body, projection curtain, motor and electric telescopic handle, the internally mounted of the main casing body has the winding axle, and the outside of winding axle installs the projection curtain to the below that the projection curtain runs through the main casing body is connected with the counterweight rod, the motor is installed to the right side bolt of the main casing body, and the output of motor is connected with the winding axle through the shaft coupling, the couple has all been welded to the left and right sides top of the main casing body, and the rear surface bolt of the main casing body installs the mounting panel, the inside top of installation piece is provided with the slide bar, the spout has been seted up to the below of second slide rail, and the spout setting is in the outside of slide bar. This automatic projecting apparatus curtain of clearance dust is provided with operation board and second slide rail, and at the in-process that uses, the effectual both sides face to the projection curtain of fine brush and the effectual dust removal processing of thick brush on operation board surface for the device has the function of good automatic clearance dust.

Description

A projector screen that automatically cleans dust for English teaching

technical field

The utility model relates to the technical field of projector screens, in particular to a projector screen for automatic dust cleaning for English teaching.

Background technique

In the field of English teaching, the projector screen is an auxiliary device that cooperates with the projector to display the video materials inside the electronic equipment, similar to the screen. However, the existing projector screen still has certain problems in the process of use questionable;

During the long-term use of the existing projector screen, a lot of dust will stick to the surface of the projector screen, which will greatly affect the subsequent use. It has the function of dust removal, which leads to the manual cleaning of the projector screen after a period of time, which causes the inconvenience of using the projector screen.

Therefore, we propose a projector screen that automatically cleans dust for English teaching, so as to solve the problems raised above.

SUMMARY OF THE INVENTION

The purpose of this utility model is to provide a projector screen for English teaching that automatically cleans dust, so as to solve the problem that the projector screen currently on the market does not have automatic dust removal proposed by the above-mentioned background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a projector screen for automatic dust cleaning for English teaching, comprising a main casing, a projection screen, a motor and an electric telescopic rod, and the interior of the main casing is provided with a winding device. shaft, and a projection screen is installed on the outside of the winding shaft, and the projection screen is connected with a counterweight rod through the lower part of the main casing, the right bolt of the main casing is installed with a motor, and the output end of the motor is connected to the motor through a coupling. The winding shafts are connected with each other, hooks are welded on the upper left and right sides of the main casing, and a mounting plate is bolted on the rear surface of the main casing, a first slide rail is welded under the rear of the main casing, and the main An installation block is welded under the front of the housing, and the inner bolt of the installation block is installed with an electric telescopic rod, the movable end bolt of the electric telescopic rod is installed with a second slide rail, and the inner parts of the second slide rail and the first slide rail are installed A slider is installed, and a handle is installed at the end of the slider, an operation plate is arranged on the outer side of the slider, and a fine brush and a coarse brush are installed on the outer surface of the operation plate, and the coarse brush is located below the fine brush, A sliding rod is arranged above the inside of the mounting block, and a sliding groove is opened below the second sliding rail, and the sliding groove is arranged on the outer side of the sliding rod.

Preferably, the projection screen runs between adjacent work plates, and the left and right length of the projection screen is less than the left and right length of the work plate, and there are two work plates, and the work plates and the work plates are parallel to each other.

Preferably, the first sliding rail is arranged below the mounting plate, and the rear surface of the mounting plate and the rear surface of the first sliding rail are perpendicular to each other, and the first sliding rail and the slider are slidably connected.

Preferably, the sliding block has a "T"-shaped structure, and the sliding block and the working plate are of an integrated structure, and the left and right lengths of the sliding block are equal to the left and right lengths of the first slide rail.

Preferably, the sliding rods are equally spaced on the mounting block, and the mounting block has an "L"-shaped structure, and the sliding rods and the sliding grooves are in a one-to-one correspondence.

Preferably, the second slide rail and the first slide rail have the same internal structure, and the second slide rail constitutes a sliding structure by electric telescopic rods, and the electric telescopic rods are equally spaced on the mounting block.

Compared with the prior art, the beneficial effects of the present utility model are: the projector screen for automatically cleaning dust;

1. There is a work board and a second slide rail. During the process of use, the fine brush and coarse brush on the surface of the work board can effectively remove dust from both sides of the projection screen, so that the device has a good function of automatically cleaning dust. At the same time, the second slide rail is designed to form a sliding structure through an electric telescopic rod, which effectively controls the distance between two adjacent operation boards, thereby facilitating the unfolding of the projection screen and cleaning of dust, which greatly increases the practicability of the device;

2. A first sliding rail, a sliding block and a second sliding rail are provided, and the sliding block design of the "T" shape structure is adopted, and the use of the sliding structure makes the sliding block stably on the first sliding rail, the second sliding rail, and the second sliding rail. The slide rail slides inside, which greatly facilitates the disassembly of the sliding block and the work board, thereby facilitating the cleaning of the fine brush and the coarse brush on the work board, and increasing the practicability of the device.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the utility model;

FIG. 2 is a schematic diagram of a side sectional structure of the utility model;

3 is a schematic structural diagram of the second slide rail of the present invention.

In the figure: 1. Main shell; 2. Winding shaft; 3. Projection screen; 4. Counterweight rod; 5. Motor; 6. Hook; 7. Mounting plate; 8. First slide rail; 9. Slider; 10, work board; 11, fine brush; 12, coarse brush; 13, installation block; 14, electric telescopic rod; 15, slide rod; 16, second slide rail; 17, chute; 18, handle.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-3 , the present utility model provides a technical solution: a projector screen for automatically cleaning dust for English teaching, comprising a main casing 1 , a winding shaft 2 , a projection screen 3 , a counterweight rod 4 , and a motor 5 , hook 6, mounting plate 7, first sliding rail 8, sliding block 9, working plate 10, fine brush 11, coarse brush 12, mounting block 13, electric telescopic rod 14, sliding rod 15, second sliding rail 16, sliding The groove 17 and the handle 18, the winding shaft 2 is installed inside the main casing 1, and the projection screen 3 is installed on the outside of the winding shaft 2, and the projection screen 3 is connected to the counterweight rod 4 through the lower part of the main casing 1. The main casing A motor 5 is installed on the right side of the body 1, and the output end of the motor 5 is connected to the winding shaft 2 through a coupling. The mounting plate 7 is mounted with the surface bolts, the first slide rail 8 is welded under the rear of the main casing 1, and the mounting block 13 is welded under the front and the bottom of the main casing 1, and the inner bolt of the mounting block 13 is mounted with an electric telescopic rod 14 , the movable end bolt of the electric telescopic rod 14 is installed with the second slide rail 16, and the inside of the second slide rail 16 and the first slide rail 8 is installed with a slider 9, and the end of the slider 9 is installed with a handle 18, the sliding The outer side of the block 9 is provided with a working plate 10, and the outer surface of the working plate 10 is equipped with a fine-bristle brush 11 and a coarse-bristle brush 12, and the coarse-bristle brush 12 is located below the fine-bristle brush 11, and a sliding rod 15 is arranged above the interior of the installation block 13. , the lower part of the second slide rail 16 is provided with a chute 17 , and the chute 17 is arranged on the outer side of the slide bar 15 .

The projection screen 3 runs through between the adjacent work plates 10, and the left and right lengths of the projection screen 3 are smaller than the left and right lengths of the work plates 10, and two work plates 10 are provided, and the work plates 10 and 10 are parallel to each other. The design of the structure enables the projection screen 3 to be effectively removed by the fine brush 11 and the coarse brush 12 on the operation board 10 to ensure the normal use of the device.

The first sliding rail 8 is arranged below the mounting plate 7, and the rear surface of the mounting plate 7 and the rear surface of the first sliding rail 8 are perpendicular to each other, and the first sliding rail 8 and the slider 9 are slidingly connected. , to ensure the normal installation of the device, and at the same time, the design of the sliding connection facilitates the disassembly of the operation board 10, thereby facilitating the cleaning of the fine-bristle brush 11 and the coarse-bristle brush 12.

The slider 9 has a "T"-shaped structure, and the slider 9 and the operation plate 10 are integrated structures, and the left and right length of the slider 9 is equal to the left and right length of the first slide rail 8, which increases the stability of sliding and improves the practicality of the device. sex.

The sliding rods 15 are equally spaced on the mounting block 13, and the mounting block 13 has an "L"-shaped structure, and the sliding rods 15 and the chute 17 are in a one-to-one correspondence. The design of the above structure adds a second sliding rail 16 to slide. of stability.

The internal structures of the second slide rail 16 and the first slide rail 8 are the same, and the second slide rail 16 constitutes a sliding structure by the electric telescopic rod 14, and the electric telescopic rod 14 is equally spaced on the mounting block 13. The sliding design, It is convenient to adjust the distance between two adjacent operation boards 10 , so as to control the unfolding and cleaning of the projection screen 3 conveniently.

Working principle: When using the projector screen that automatically cleans dust, first, as shown in Figure 1-2, install the device to a suitable position through the hook 6 or the mounting plate 7, so as to connect the power supply of the device to the power grid. connect to get started.

In the process of use, firstly, as shown in FIG. 1-2, the electric telescopic rod 14 is activated, so that the electric telescopic rod 14 drives the second slide rail 16 to slide, and as shown in FIG. 3, the second slide rail 16 is made to slide. Under the action of the sliding rod 15 and the sliding groove 17, it slides stably, thereby effectively adjusting the distance between the two adjacent work plates 10, and then by starting the motor 5, the motor 5 drives the winding shaft 2 to rotate, and at the same time as As shown in Fig. 1-2, the projection screen 3 is moved downward under the action of the counterweight rod 4, so that the projection screen 3 is unfolded, and then the projection operation is started;

After the projection operation, as shown in Figures 1-3, the electric telescopic rod 14 is activated to reduce the distance between the two adjacent operation boards 10, so that the fine brush 11 and the coarse brush 12 on the operation board 10 are connected to the projection. The screen 3 is in contact, and then the motor 5 is started, thereby driving the winding shaft 2 to perform the winding operation of the projection screen 3. At the same time, the projection screen 3 will be in contact with the coarse brush 12 and the fine brush 11 successively during the movement, so as to effectively Dust removal operation is performed on the surface of the projection screen 3;

After using for a period of time, as shown in Fig. 2-3, the handle 18 can be used to pull the slide bar 15 to slide inside the first slide rail 8 and the second slide rail 16, and then the two work boards 10 can be disassembled to facilitate the removal of fine hair Cleaning of brush 11 and coarse brush 12.

A series of work is thus completed, and the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principle of the present utility model, any modifications, equivalent replacements, improvements, etc. made shall be included within the protection scope of the present utility model.

Claims (6)

1. A projector screen for automatically cleaning dust for English teaching, comprising a main casing (1), a projection screen (3), a motor (5) and an electric telescopic rod (14), characterized in that: the main casing A winding shaft (2) is installed inside (1), and a projection screen (3) is installed on the outside of the winding shaft (2), and the projection screen (3) penetrates the lower part of the main casing (1) and is connected with a counterweight bar ( 4), a motor (5) is installed on the right side of the main casing (1), and the output end of the motor (5) is connected to the winding shaft (2) through a coupling, and the main casing (1) Hooks (6) are welded on the upper left and right sides of the main casing (1), mounting plates (7) are bolted on the rear surface of the main casing (1), and a first slide rail is welded under the rear of the main casing (1). (8), and a mounting block (13) is welded under the front of the main housing (1), and an electric telescopic rod (14) is installed on the inner bolt of the mounting block (13), and the movement of the electric telescopic rod (14) A second sliding rail (16) is installed on the end bolt, and a sliding block (9) is installed inside the second sliding rail (16) and the first sliding rail (8), and a handle is installed at the end of the sliding block (9). (18), an operation plate (10) is provided on the outer side of the slider (9), and the outer surface of the operation plate (10) is equipped with a fine brush (11) and a coarse brush (12), and the coarse brush (12) ) is located below the fine-bristle brush (11), a sliding rod (15) is provided above the inside of the mounting block (13), and a sliding groove (17) is opened below the second sliding rail (16), and the sliding groove (17) is arranged on the outer side of the sliding rod (15). 2. A projector screen for automatic dust removal for English teaching according to claim 1, characterized in that: the projection screen (3) runs through between adjacent work boards (10), and the projection screen (3) The left and right lengths of the working plates (10) are smaller than the left and right lengths of the working plates (10), and two working plates (10) are provided, and the working plates (10) and the working plates (10) are parallel to each other. 3 . The projector screen for automatic dust removal for English teaching according to claim 1 , wherein the first slide rail ( 8 ) is arranged below the mounting plate ( 7 ), and the mounting plate ( 7 ) is arranged under the mounting plate ( 7 ). ) and the rear surface of the first slide rail (8) are perpendicular to each other, and at the same time the first slide rail (8) and the slider (9) are slidably connected. 4. The projector screen for automatic dust removal for English teaching according to claim 1, characterized in that: the slider (9) is in a "T" shape, and the slider (9) is connected to the operation board ( 10) is an integrated structure, and the left and right length of the slider (9) is equal to the left and right length of the first slide rail (8). 5 . The projector screen for automatic dust cleaning for English teaching according to claim 1 , wherein the sliding bars ( 15 ) are equidistantly distributed on the mounting block ( 13 ), and the mounting block ( 13 ) It has an "L"-shaped structure, and the sliding rod (15) is in a one-to-one correspondence with the sliding groove (17). 6 . The projector screen for automatic dust removal for English teaching according to claim 1 , wherein the second slide rail ( 16 ) and the first slide rail ( 8 ) have the same internal structure, and The second sliding rail (16) forms a sliding structure through the electric telescopic rods (14), and the electric telescopic rods (14) are equally spaced on the installation block (13).

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