CN214623287U

CN214623287U - Curtain for teaching projector

Info

Publication number: CN214623287U
Application number: CN202120609529.9U
Authority: CN
Inventors: 冯静
Original assignee: Jilin Xingchuang Education Technology Co ltd
Current assignee: Jilin Xingchuang Education Technology Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-11-05
Anticipated expiration: 2031-03-25

Abstract

The utility model discloses a curtain for a teaching projector, which belongs to the technical field of projectors, and comprises an installation frame, wherein the upper top surface of the installation frame is provided with a display groove, the inner walls at the two ends of the installation frame are rotatably connected with a rotating shaft, the outer walls of the two rotating shafts are provided with curtains, the side wall of the installation frame is fixedly connected with a motor box, one end of one rotating shaft penetrates through the mounting frame and extends to the inner side of the motor box, the rotating shaft is connected with the mounting frame in a rotating manner, the inner wall of the motor box is fixedly connected with a speed reducer and a motor, the speed reducer is positioned at one side of the speed reducer, and the speed reducer can drive the curtain to rotate slowly under the action of the speed reducer by the motor when the curtain is used, can make the curtain last, slow when using rotate, and glue the dust on the curtain that can be timely through the sticky tape and fall, avoided the dust to stop for a long time and cause the phenomenon emergence that is difficult to the clearance on the curtain.

Description

Curtain for teaching projector

Technical Field

The utility model relates to a projecting apparatus technical field, more specifically say, relate to a curtain for teaching projecting apparatus.

Background

The projector, also known as a projector, is a device capable of projecting images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, and the like through different interfaces to play corresponding video signals.

The teaching is applied to with blackboard cooperation use often to the projecting apparatus in school, the curtain on the projecting apparatus is usually put beside the blackboard when the cooperation blackboard is used, and because can produce a large amount of dusts and fly down on the curtain when using the chalk to write on the blackboard, current projecting apparatus does not have cleaning device, therefore the curtain can influence the projection effect after long-time the use, and clear up under the condition of not using usually when clearing up the curtain, and the dust can remain the dust when cooperation blackboard is used usually, and wait to the curtain when not using under the condition of clearing up again, the dust stays the time on the curtain longer, subsequent clearance degree of difficulty has been increased.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a curtain for teaching projecting apparatus, it can realize when using the curtain, can make the motor drive the curtain slowly rotatory under the effect of speed reducer, can make the curtain last when using, slowly rotate, and glue the dust on the curtain that can be timely through the sticky tape and fall, avoided the dust to stop for a long time and cause the phenomenon that is difficult to the clearance to take place on the curtain.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A curtain for a teaching projector comprises an installation frame, wherein a display groove is formed in the upper top surface of the installation frame, rotating shafts are rotatably connected to the inner walls of two ends of the installation frame, curtains are arranged on the outer walls of the two rotating shafts, a motor box is fixedly connected to the side wall of the installation frame, one end of one rotating shaft penetrates through the installation frame and extends to the inner side of the motor box, the rotating shafts are rotatably connected with the installation frame, a speed reducer and a motor are fixedly connected to the inner wall of the motor box, the speed reducer is located on one side of the speed reducer, the output end of the motor is fixedly connected with the input end of the speed reducer, the output end of the speed reducer is fixedly connected with one end of the rotating shaft, two limiting wheels which are symmetrically arranged are fixedly connected to the outer walls of the two rotating shafts, a rubber plate is fixedly connected to the inner wall of each curtain, and a clamping strip which is matched with the limiting wheels is fixedly connected to the inner wall of the rubber plate, the card strip joint is connected in the inboard of spacing round and rotate with it, two symmetries of fixedly connected with set up the connecting plate on the lateral wall of installing frame bottom, two the spout has all been seted up to one side of connecting plate, two the inside of spout is rotated and is connected with the round bar, fixedly connected with adhesive tape on the outer wall of round bar, the outer wall of adhesive tape pastes with the outer wall of curtain mutually, fixedly connected with fixed plate on the lateral wall of installing frame both sides, a plurality of through-holes have been seted up between the upper and lower face of fixed plate.

Furthermore, the spout is the slope form, can make the pole paste mutually with the curtain always because of the effect of gravity through setting up to the spout.

Further, two it has the apron to articulate between the top of connecting plate, the apron is L form and laps the overlap joint on the outer wall of connecting plate, can shelter from the top of sticky tape through the setting of apron, has avoided the dust to drop and has caused the sticky tape to receive too much pollution.

Further, the gap between the surface of curtain and the display slot is not more than 1mm, has avoided the dust to pass through the too much surface that drops to the curtain in gap between display slot and the curtain through setting up to display slot and curtain.

Further, fixedly connected with puigging on the inner wall of motor case has avoided the motor to produce great noise influence teaching when starting through setting up the puigging.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) it can realize when using the curtain that it can make the motor drive the curtain slowly rotatoryly under the effect of speed reducer, can make the curtain last when using, slowly rotate, and glue the dust on the curtain that can be timely through the sticky tape and fall, has avoided the dust to stop for a long time on the curtain and has caused the phenomenon that is difficult to the clearance to take place.

(2) The sliding groove is inclined, and the round rod can be always attached to the curtain under the action of gravity through the arrangement of the sliding groove.

(3) Articulated between the top of two connecting plates have the apron, and the apron is L form and apron overlap joint on the outer wall of connecting plate, can shelter from the top of sticky tape through the setting of apron, has avoided the dust to drop and has caused the sticky tape to receive too much pollution.

(4) The gap between the surface of curtain and the display slot is not more than 1mm, has avoided the dust to pass through the too much surface that drops to the curtain in gap between display slot and the curtain through the setting to display slot and curtain.

(5) Fixedly connected with puigging on the inner wall of motor case has avoided the motor to produce great noise influence teaching when starting through the setting to the puigging.

Drawings

Fig. 1 is a schematic side view of the cross-sectional structure of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a schematic front view of the structure of the present invention;

fig. 5 is a schematic side view of the present invention.

The reference numbers in the figures illustrate:

1. installing a frame; 2. a display slot; 3. a rotating shaft; 4. a curtain; 5. a motor case; 6. a motor; 7. a speed reducer; 8. a rubber plate; 9. clamping the strip; 10. a limiting wheel; 11. a chute; 12. a round bar; 13. sticking a tape; 14. a fixing plate; 15. a through hole; 16. a cover plate; 17. a connecting plate.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-5, a curtain for a teaching projector comprises a mounting frame 1, a display groove 2 is formed on the top surface of the mounting frame 1, rotating shafts 3 are rotatably connected to the inner walls of the two ends of the mounting frame 1, curtains 4 are arranged on the outer walls of the two rotating shafts 3, the gap between the outer surface of the curtain 4 and the display groove 2 is not more than 1mm, the arrangement of the display groove 2 and the curtains 4 prevents dust from falling onto the outer surface of the curtain 4 through too much gap between the display groove 2 and the curtain 4, a motor box 5 is fixedly connected to the side wall of the mounting frame 1, one end of one rotating shaft 3 penetrates through the mounting frame 1 and extends to the inner side of the motor box 5, the rotating shaft 3 is rotatably connected with the mounting frame 1, a speed reducer 7 and a motor 6 are fixedly connected to the inner wall of the motor box 5, a sound insulation layer is fixedly connected to the inner wall of the motor box 5, and the arrangement of the sound insulation layer prevents the motor 6 from generating large noise during starting, the speed reducer 7 is positioned at one side of the speed reducer 7, the output end of the motor 6 is fixedly connected with the input end of the speed reducer 7, the output end of the speed reducer 7 is fixedly connected with one end of the rotating shafts 3, two limiting wheels 10 which are symmetrically arranged are fixedly connected on the outer walls of the two rotating shafts 3, a rubber plate 8 is fixedly connected on the inner wall of the curtain 4, a clamping strip 9 which is matched with the limiting wheels 10 is fixedly connected on the inner wall of the rubber plate 8, the clamping strip 9 is clamped at the inner side of the limiting wheels 10 and is rotationally connected with the limiting wheels 10, two symmetrically arranged connecting plates 17 are fixedly connected on the side wall of the bottom end of the mounting frame 1, a chute 11 is respectively arranged at one side of the two connecting plates 17, a round rod 12 is rotationally connected inside the two chutes 11, an adhesive tape 13 is fixedly connected on the outer wall of the round rod 12, the outer wall of the adhesive tape 13 is attached to the outer wall of the curtain 4, the chute 11 is in an inclined shape, the round rod 12 can be attached to the curtain 4 under the action of gravity all the time through the arrangement of the chute 11, articulated between the top of two connecting plates 17 have apron 16, and apron 16 is L form and apron 16 overlap joint on connecting plate 17's outer wall, can shelter from the top of sticky tape 13 through the setting of apron 16, has avoided the dust to drop and has caused sticky tape 13 to receive too much pollution at sticky tape 13, fixedly connected with fixed plate 14 on the lateral wall of installing frame 1 both sides, has seted up a plurality of through-holes 15 between the upper and lower face of fixed plate 14.

When the blackboard eraser is used, the projector is irradiated on the curtain 4 by aiming at the position of the display groove 2 for use, the starting motor 6 drives the curtain 4 to rotate slowly through the speed reducer 7 when the blackboard eraser is matched for use, the curtain 4 is in contact with the adhesive tape 13 when rotating slowly, the adhesive tape 13 can stick off dust on the outer surface of the curtain 4, and the cover plate 16 is lifted when the dust on the adhesive tape 13 is excessive, and the adhesive tape 13 is taken out through the round rod 12 and replaced; compared with the prior art, it can realize when using the curtain, can make the motor drive the curtain slowly rotatory under the effect of speed reducer, can make the curtain last when using, slowly rotate, and can be timely glue the dust on the curtain through the sticky tape and fall, has avoided the dust to stop for a long time on the curtain and has caused the phenomenon that is difficult to the clearance to take place.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a curtain for teaching projecting apparatus, includes installing frame (1), its characterized in that: the upper top surface of the mounting frame (1) is provided with a display groove (2), the inner walls at the two ends of the mounting frame (1) are rotatably connected with rotating shafts (3), the outer walls of the two rotating shafts (3) are provided with curtains (4), the side wall of the mounting frame (1) is fixedly connected with a motor box (5), one end of one rotating shaft (3) penetrates through the mounting frame (1) and extends to the inner side of the motor box (5), the rotating shaft (3) is rotatably connected with the mounting frame (1), the inner wall of the motor box (5) is fixedly connected with a speed reducer (7) and a motor (6), the speed reducer (7) is positioned on one side of the speed reducer (7), the output end of the motor (6) is fixedly connected with the input end of the speed reducer (7), the output end of the speed reducer (7) is fixedly connected with one end of the rotating shaft (3), and the outer walls of the two rotating shafts (3) are fixedly connected with two limiting wheels (10) which are symmetrically arranged, the inner wall of the curtain (4) is fixedly connected with a rubber plate (8), the inner wall of the rubber plate (8) is fixedly connected with a clamping strip (9) matched with a limiting wheel (10), the clamping strip (9) is clamped at the inner side of the limiting wheel (10) and is rotationally connected with the limiting wheel, two symmetrically-arranged connecting plates (17) are fixedly connected to the side wall of the bottom end of the mounting frame (1), sliding grooves (11) are formed in one side of each of the two connecting plates (17), round rods (12) are rotatably connected inside the two sliding grooves (11), the outer wall of the round rod (12) is fixedly connected with an adhesive tape (13), the outer wall of the adhesive tape (13) is attached to the outer wall of the curtain (4), the side walls at the two sides of the mounting frame (1) are fixedly connected with a fixing plate (14), a plurality of through holes (15) are arranged between the upper surface and the lower surface of the fixing plate (14).

2. A curtain for teaching projectors as claimed in claim 1, wherein: the sliding groove (11) is inclined.

3. A curtain for teaching projectors as claimed in claim 1, wherein: two articulated between the top of connecting plate (17) have apron (16), apron (16) are L form and apron (16) overlap joint on the outer wall of connecting plate (17).

4. A curtain for teaching projectors as claimed in claim 1, wherein: the gap between the outer surface of the curtain (4) and the display groove (2) is not more than 1 mm.

5. A curtain for teaching projectors as claimed in claim 1, wherein: and a sound insulation layer is fixedly connected to the inner wall of the motor box (5).