CN211207062U

CN211207062U - Projection curtain structure for education industry

Info

Publication number: CN211207062U
Application number: CN201922376270.3U
Authority: CN
Inventors: 郑玉琳; 曹刚; 王畅; 方枭
Original assignee: Sichuan Zhongsen Tongyue Technology Co ltd
Current assignee: Sichuan Zhongsen Tongyue Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-07
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a projection curtain structure for education industry, including the shell, be equipped with the rolling axle in the shell, the epaxial rolling of rolling has the curtain body, shell one side is equipped with the motor, the output shaft of motor with rolling axle fixed connection, the tip of rolling axle is equipped with the initiative tooth, the shell below is equipped with the connecting plate, the both ends of transmission shaft rotate connect in on the connecting plate, be equipped with on the transmission shaft with the driven tooth of initiative tooth meshing, be equipped with the multiunit brush along circumference on the periphery of transmission shaft, the brush with this body contact of curtain sets up. The utility model has the advantages of increasing the cleaning effect of the brush on the curtain.

Description

Projection curtain structure for education industry

Technical Field

The utility model belongs to the technical field of the technique of projection curtain and specifically relates to a projection curtain structure for education industry is related to.

Background

At present projection equipment wide application in the education trade, projection equipment includes projector and projection curtain, often uses projection equipment in the teaching, through projection curtain and the collocation of projector in the projection equipment, can effectively play supplementary effect to teacher's teaching, but the projection curtain easily adheres to the dust in the use, leads to the display effect variation of projection curtain.

The current chinese patent that publication number is CN108873590A discloses a projection curtain structure for education industry, which comprises an outer shell, shell one side is equipped with the motor, be provided with the drive shaft on the motor, the drive shaft extends to in the casing and is connected with the rolling axle, the one end of curtain body is connected to the rolling axle, the other end of curtain body is provided with the weighting rod, curtain body both sides are provided with bordures, weighting rod one side is provided with left location strip, the opposite side is provided with right location strip, all be equipped with the spout on left location strip and the right location strip, the location strip is located the shell below, the weighting rod both ends are provided with the locating piece corresponding with the spout, the casing below is provided with the brush, brush and curtain body contact setting. Through motor, brush and location strip, make the curtain body can not take place deformation under the effect of brush at every turn rolling in-process, make stability high, and make clean effect better.

The above prior art solutions have the following drawbacks: above-mentioned education is brush and curtain butt of projection curtain structure for trade, the rolling through the curtain in the use cleans the curtain, and cleaning effect is single, leads to cleaning effect not good.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an education is projection curtain structure for trade has the advantage that increases the brush to the clean effect of curtain.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a projection curtain structure for education industry, includes the shell, is equipped with the rolling axle in the shell, the epaxial rolling of rolling has the curtain body, shell one side is equipped with the motor, the output shaft of motor with rolling axle fixed connection, the tip of rolling axle is equipped with the initiative tooth, the shell below is equipped with the connecting plate, it is connected with the transmission shaft to rotate on the connecting plate, be equipped with on the transmission shaft with the driven tooth of initiative tooth meshing, be equipped with the multiunit brush along circumference on the periphery of transmission shaft, the brush with this body contact of curtain sets up.

Through adopting above-mentioned technical scheme, the motor is used for driving the rolling axle and rotates, and the rolling axle rotates and drives the initiative tooth rotation of fixed connection on the rolling axle, and the connecting plate of shell below is used for making the both ends of transmission shaft rotate on the connecting plate, and the initiative tooth rotates and drives rather than the driven tooth rotation of meshing, thereby driven tooth rotates and drives the transmission shaft and rotate, makes the epaxial brush of transmission rotate. The setting of multiunit brush can strengthen clean effect, and the transmission shaft rotates the in-process and makes the brush clean better to the curtain body, and transmission shaft rotation direction is opposite with the rolling axle rotation direction, makes that the brush can be better clean the curtain body, strengthens clean effect.

The present invention may be further configured in a preferred embodiment as: the brush type electric toothbrush is characterized in that a plurality of inserting grooves are formed in the circumferential surface of the transmission shaft along the circumferential direction, the inserting grooves are formed in the length direction of the transmission shaft, inserting blocks are arranged in the inserting grooves, the end parts of the inserting blocks are matched with the inserting grooves in an inserting mode, brush grooves are formed in the inserting blocks, and the brushes are fixedly connected in the brush grooves; a sliding groove is formed in the side face of the insertion block, a fixed column is connected in the sliding groove in a sliding mode, and a clamping groove which is in insertion fit with the end portion of the fixed column is formed in the groove wall of the insertion groove; a linkage plate fixedly connected with the fixed column is connected in the sliding groove in a sliding manner, a pressing block is fixedly connected to the linkage plate, and when the end part of the fixed column is inserted into the clamping groove, the pressing block is positioned outside the sliding groove and extends out of the side surface of the inserting block; the tank bottom in groove that slides is equipped with reset spring, reset spring with the bottom fixed connection of interlock board.

By adopting the technical scheme, the inserting-connecting block is inserted into the inserting-connecting groove, and the brush groove is used for the brush to be arranged therein. The sliding groove is used for sliding the fixed column, and when the end part of the fixed column is inserted into the clamping groove, the insertion block is fixed in the insertion groove. The pressing block is used for driving the fixing column to slide in the sliding groove, and when the pressing block is pressed, the linkage plate is driven to slide in the sliding groove, so that the fixing column is driven to slide in the sliding groove, the end part of the fixing column is retracted into the sliding groove, the inserting block can be taken out from the inserting groove, and the brush is detached. The reset spring plays the reset effect to the fixed column, and when reset spring was in natural state, the tip of fixed column stretched out outside the groove that slides. The detachable connection of the brush is realized, and the brush can be conveniently and quickly replaced when the brush is bent and deformed or polluted by dust due to long-time use of the brush.

The present invention may be further configured in a preferred embodiment as: the end part of the fixing column, which is far away from the bottom of the fixing groove, is hemispherical.

Through adopting above-mentioned technical scheme, the hemispherical tip of fixed column makes the fixed column can be better insert the draw-in groove.

The present invention may be further configured in a preferred embodiment as: the brush with the plug block is isosceles trapezoid in the cross-section, and the brush with the plug block width grow gradually in the direction of the transmission shaft to keeping away from the transmission shaft.

Through adopting above-mentioned technical scheme, brush and grafting piece width grow gradually in the transmission shaft to the direction of keeping away from the transmission shaft, make the area of brush and curtain body contact bigger, strengthen the clean effect to the curtain body.

The present invention may be further configured in a preferred embodiment as: curtain body one end fixed connection is equipped with the balancing weight on the other end on the rolling axle.

Through adopting above-mentioned technical scheme, when the rolling axle rotated and made the curtain body when moving down, the balancing weight was used for increaseing the weight of curtain body, with the curtain body exhibition of pulling, reduced the fold that produces on the curtain body, and the balancing weight reduces the influence of natural wind to the curtain body simultaneously.

The present invention may be further configured in a preferred embodiment as: the upper surface of the balancing weight is provided with a dust collecting groove.

Through adopting above-mentioned technical scheme, the dust collecting tank is used for collecting the dust that the brush brushed down from the curtain body.

The present invention may be further configured in a preferred embodiment as: the side of the balancing weight is provided with a pulling groove communicated with the dust collecting groove, the pulling groove is positioned below the dust collecting groove, the pulling groove is connected with a dust collecting plate in a sliding manner, and the upper surface of the dust collecting plate is provided with a dust collecting opening for collecting dust.

Through adopting above-mentioned technical scheme, the pulling groove supplies the dust collecting plate to slide in the pulling groove, and the dust collecting opening is used for collecting the dust under the brush, when pulling out the dust collecting plate from the pulling groove, can concentrate the clearance to the dust of collecting in the dust collecting plate.

The present invention may be further configured in a preferred embodiment as: the wall edge of the dust collecting groove is an inclined surface, and the opening of the inclined surface is upward.

Through adopting above-mentioned technical scheme, the inclined plane of the cell wall of dust collecting tank can make the dust that falls on the cell wall because self gravity falls into the dust collection mouth along the inclined plane, better collects the dust.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the driving teeth on the winding shaft rotate the driven teeth on the electric transmission shaft to rotate, so that the transmission shaft rotates, and the brush arranged on the transmission shaft can better clean the curtain body;

2. the brush is detachably connected, so that the brush is convenient to replace when bristles of the brush are bent and deformed due to long-time use or polluted by dust;

3. the dust collecting groove can collect dust, and the dust can be conveniently and uniformly treated.

Drawings

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

fig. 2 is a schematic sectional view of the housing of the present invention;

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

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3;

fig. 5 is a schematic structural view of the dust collecting plate, the pulling groove and the dust collecting groove of the present invention.

Description of the drawings: 1. a housing; 2. a winding shaft; 3. a curtain body; 4. a motor; 5. a driving tooth; 6. a drive shaft; 7. a driven tooth; 8. a connecting plate; 9. a brush; 10. inserting grooves; 11. an insertion block; 12. a brush slot; 13. a sliding groove; 14. fixing a column; 15. a linkage plate; 16. a pressing block; 17. a card slot; 18. a return spring; 19. a balancing weight; 20. a dust collecting groove; 21. pulling the groove; 22. a dust collecting plate; 23. a dust collecting port.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 1, for the utility model discloses a projection curtain structure for education industry, which comprises an outer shell 1, winding shaft 2 is installed to shell 1, winding shaft 2's both ends are rotated and are connected in shell 1, motor 4 is installed to shell 1 one side, motor 4's output shaft and winding shaft 2 fixed connection, make motor 4's output shaft drive winding shaft 2 and rotate together, the rolling has curtain body 3 on the winding shaft 2, the one end of curtain body 3 is connected on winding shaft 2, the other end is connected with balancing weight 19, balancing weight 19 is used for increaseing curtain body 3's weight, draw curtain body 3 to open up, reduce the fold that produces on the curtain body 3, balancing weight 19 reduces the influence of natural wind to curtain body 3 simultaneously. The curtain body 3 adopts an anti-static curtain material, so that the curtain body 3 is not easy to generate static electricity in the friction process, and the adsorbed dust on the surface of the curtain is reduced.

Referring to fig. 2, the tip fixedly connected with of rolling axle 2 drives tooth 5, and shell 1 below fixedly connected with connecting plate 8, and the both ends of transmission shaft 6 are rotated and are connected on connecting plate 8, on the transmission shaft 6 fixedly connected with the driven tooth 7 of 5 meshing of drive tooth to make rolling axle 2 rotate the time make rather than fixed connection's drive tooth 5 rotate, drive tooth 5 rotates and drives rather than meshed driven tooth 7 and rotate, and driven tooth 7 drives rather than fixed connection's 6 antiport of transmission shaft, and the antiport through driven tooth 7 strengthens the clean effect to curtain body 3.

The circumference of transmission shaft 6 is seted up a plurality of inserting grooves 10 in the circumference, and inserting groove 10 is seted up along the length direction of transmission shaft 6, and inserting groove 10 interpolation cooperation has grafting piece 11, and grafting piece 11 is last to be seted up brush groove 12, and brush 9 fixed connection is in brush groove 12. The brush 9 and the plug block 11 are isosceles trapezoids in cross section, and the width of the brush 9 and the plug block 11 is gradually increased from the transmission shaft 6 to the direction far away from the transmission shaft 6. The contact area between the brush 9 and the curtain body 3 is larger, and the cleaning effect of the curtain body 3 is enhanced. The inserting grooves 10 and the inserting blocks 11 which are inserted and matched with the inserting grooves are three groups.

Under the rotation of transmission shaft 6 for brush 9 rotates along transmission shaft 6, and brush 9 and curtain body 3 contact make the tip of brush 9 constantly rotate the surface of in-process brush curtain body 3, clean it.

Referring to fig. 3 and 4, a sliding groove 13 is formed in a side surface of the insertion block 11, a fixing post 14 is slidably connected in the sliding groove 13, a clamping groove 17 is formed in a wall of the insertion groove 10, the clamping groove 17 is in inserted fit with an end portion of the fixing post 14, and when the end portion of the fixing post 14 is inserted into the clamping groove 17, the insertion block 11 is fixed in the insertion groove 10. Sliding connection has trace board 15 in the sliding slot 13, trace board 15 and fixed column 14 fixed connection, fixedly connected with presses piece 16 on the trace board 15, it is used for driving fixed column 14 to slide to press piece 16, when the tip of fixed column 14 inserts in the draw-in groove 17, press piece 16 is located sliding slot 13 outside and stretches out the side of inserted block 11, through pressing press piece 16, press piece 16 drives the tip that the fixed column 14 made the tip of fixed column 14 retract into sliding slot 13, realized the dismantlement to inserted block 11 and inserted groove 10. The fixed columns 14 and the clamping grooves 17 are provided with two groups, and are respectively located at the positions of two ends of the strip-shaped inserting block 11, so that the inserting block 11 can be better fixed.

The bottom of the sliding groove 13 is fixedly connected with a return spring 18, and the return spring 18 is fixedly connected with the bottom of the fixed column 14. The return spring 18 has a return effect on the fixed column 14, and when the return spring 18 is in a natural state, the end part of the fixed column 14 extends out of the sliding groove 13. Realized the connection of dismantling of brush 9, when brush 9 perhaps receives dust pollution because the brush hair bending deformation who uses brush 9 for a long time, directly will insert the piece 11 and pull down, change new grafting piece 11, brush 9 on grafting piece 11 and the grafting piece 11 is supporting setting, but convenient and fast changes.

The end of the fixing post 14 far away from the bottom of the fixing groove is hemispherical, and the hemispherical end of the fixing post 14 enables the fixing post 14 to be better inserted into the clamping groove 17.

Referring to fig. 5, a dust collecting groove 20 is formed on the upper surface of the weight block 19, and the groove wall edge of the dust collecting groove 20 is an inclined surface with an upward opening. The locomotive groove is used for collecting the dust brushed by the brush 9, so that the dust brushed by the brush 9 from the curtain body 3 cannot fall on the ground to cause the dust to float to other positions. The inclined surface of the wall of the dust collecting groove 20 enables dust falling on the wall to fall into the dust collecting opening 23 along the inclined surface due to its own weight, thereby better collecting the dust.

The side of the balancing weight 19 is provided with a pulling groove 21 communicated with the dust collecting groove 20, the pulling groove 21 is positioned below the dust collecting groove 20, the pulling groove 21 is connected with a dust collecting plate 22 in a sliding way, and the upper surface of the dust collecting plate 22 is provided with a dust collecting opening 23 for collecting dust. The pulling groove 21 allows the dust collecting plate 22 to slide in the pulling groove 21, the dust collecting opening 23 is used for collecting dust brushed down, and when the dust collecting plate 22 is pulled out from the pulling groove 21, the dust collected in the dust collecting plate 22 can be intensively cleaned.

The implementation principle of the embodiment is as follows: when rolling up or extending curtain body 3 downwards, motor 4 drives rolling axle 2 and rotates, and rolling axle 2 rotates and makes curtain body 3 wind on rolling axle 2, and the driving tooth 5 on rolling axle 2 drives the driven tooth 7 on the transmission shaft 6 rather than the meshing and rotates to make transmission shaft 6 counter-rotation, brush 9 on transmission shaft 6 cleans curtain body 3's surface at transmission shaft 6 pivoted in-process. The cleaned dust falls into the dust collection port 23 through the wall of the dust collection groove 20 from above.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a projection curtain structure for education industry, includes shell (1), is equipped with rolling axle (2) in shell (1), the rolling has curtain body (3) on rolling axle (2), shell (1) one side is equipped with motor (4), the output shaft of motor (4) with rolling axle (2) fixed connection, its characterized in that: the tip of rolling axle (2) is equipped with drive tooth (5), shell (1) below is equipped with connecting plate (8), it is connected with transmission shaft (6) to rotate on connecting plate (8), be equipped with on transmission shaft (6) with driven tooth (7) of drive tooth (5) meshing, be equipped with multiunit brush (9) along circumference on the periphery of transmission shaft (6), brush (9) with curtain body (3) contact sets up.

2. The projection screen structure for education industry according to claim 1, wherein: a plurality of inserting grooves (10) are formed in the circumferential surface of the transmission shaft (6) along the circumferential direction, the inserting grooves (10) are formed in the length direction of the transmission shaft (6), inserting blocks (11) are arranged in the inserting grooves (10), the end portions of the inserting blocks (11) are matched with the inserting grooves (10) in an inserting mode, brush grooves (12) are formed in the inserting blocks (11), and the brushes (9) are fixedly connected into the brush grooves (12); a sliding groove (13) is formed in the side face of the insertion block (11), a fixed column (14) is connected in the sliding groove (13) in a sliding mode, and a clamping groove (17) which is in insertion fit with the end portion of the fixed column (14) is formed in the wall of the insertion groove (10); a linkage plate (15) fixedly connected with the fixed column (14) is connected in the sliding groove (13) in a sliding manner, a pressing block (16) is fixedly connected to the linkage plate (15), and when the end part of the fixed column (14) is inserted into the clamping groove (17), the pressing block (16) is positioned outside the sliding groove (13) and extends out of the side surface of the inserting block (11); the groove bottom of the sliding groove (13) is provided with a return spring (18), and the return spring (18) is fixedly connected with the bottom of the linkage plate (15).

3. The projection screen structure for education industry according to claim 2, wherein: the end part of the fixing column (14) far away from the bottom of the clamping groove (17) is hemispherical.

4. The projection screen structure for education industry according to claim 2, wherein: the brush (9) with the plug-in block (11) is isosceles trapezoid in cross section, and the brush (9) with the plug-in block (11) width grow gradually in transmission shaft (6) to the direction of keeping away from transmission shaft (6).

5. The projection screen structure for education industry according to claim 1, wherein: one end of the curtain body (3) is fixedly connected to the winding shaft (2), and the other end of the curtain body is provided with a balancing weight (19).

6. The projection screen structure for education industry as claimed in claim 5, wherein: the upper surface of the balancing weight (19) is provided with a dust collecting groove (20).

7. The projection screen structure for education industry according to claim 6, wherein: the side of the balancing weight (19) is provided with a pulling groove (21) communicated with the dust collecting groove (20), the pulling groove (21) is positioned below the dust collecting groove (20), the pulling groove (21) is connected with a dust collecting plate (22) in a sliding manner, and the upper surface of the dust collecting plate (22) is provided with a dust collecting opening (23) for collecting dust.

8. The projection screen structure for education industry as claimed in claim 7, wherein: the wall edge of the dust collection groove (20) is an inclined surface, and the opening of the inclined surface is upward.