CN210691035U

CN210691035U - Screen dust keeper for multimedia classroom

Info

Publication number: CN210691035U
Application number: CN201921679748.3U
Authority: CN
Inventors: 张贺; 刘敏; 王波; 张培峰
Original assignee: Jiangsu Chuangchi Zhongzhi System Integration Co Ltd
Current assignee: Jiangsu Chuangchi Zhongzhi System Integration Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-05
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a screen dust keeper for multimedia classroom, including projection screen shell, air-blower and shift knob, the curtain has been accomodate to the inside of projection screen shell, the left and right sides of projection screen shell is equipped with fixed cover respectively to overlap, and the back of fixed cover is inserted and is equipped with the bracing piece, the outside cover of bracing piece is equipped with supporting spring, the fixed welding in front of bracing piece has the grip block, and the front of grip block evenly is fixed with fixed sucking disc. The utility model discloses a be provided with two sets of air-blower work air supply, transfer and blow the dirt operation with blowing out when packing up the curtain, the effectual dust that will adhere to on the curtain is got rid of, simultaneously, when the cooperation curtain removes, the running friction area rotates under the drive of driving pulley, the mode of scrubbing the curtain through the running friction area rotation is got rid of adnexed dust on with the curtain, has improved the device's dust removal effect greatly, the mode through removing dust is dustproof, simple structure simple operation.

Description

Screen dust keeper for multimedia classroom

Technical Field

The utility model relates to a screen dustproof facilities technical field specifically is a screen dust keeper for multimedia classroom.

Background

Along with the rapid development of economy, the living standard of people is increasingly improved, more and more modern equipment enters the life and study of people, and more attention is paid to the education aspect, in order to improve the teaching quality, a plurality of schools build multimedia classrooms, the projection screens are arranged in the multimedia classrooms to realize more modern teaching, and because the projection screens are put down when in use, when teachers write on blackboard-writing, powder generated by chalks is easy to adsorb and fall on the projection screens, and the dust attached on the screens is too much and is easy to influence the screen mapping and the watching quality for a long time, the existing operation of dust prevention of the screens is mostly carried out by using rags to wipe the screens by students, the operation is complicated, higher places are not easy to wipe, the dust removal effect is poor, therefore, in order to solve the problems, a screen dustproof device for a multimedia classroom, which is convenient, fast and efficient, is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screen dust keeper for multimedia classroom to adhere to a large amount of dusts when solving present multimedia classroom that above-mentioned background art provided and using projection screen, the mode of cleaning through the student removes dust dustproof operation, makes inconvenient when the clearance is clean, and the dustproof poor problem of effect of just removing dust.

In order to achieve the above object, the utility model provides a following technical scheme: a screen dustproof device for a multimedia classroom comprises a projection screen shell, an air blower and a switch button, wherein a screen is contained in the projection screen shell, fixed sleeves are respectively sleeved on the left side and the right side of the projection screen shell, supporting rods are inserted in the back surfaces of the fixed sleeves, supporting springs are sleeved on the outer sides of the supporting rods, clamping plates are fixedly welded on the front surfaces of the supporting rods, fixed suckers are uniformly fixed on the front surfaces of the clamping plates, the air blower is fixed on the top portions of the fixed sleeves through bolts, jet pipelines are fixedly welded on the bottom portions of the fixed sleeves, a power bin is arranged in the middle of the jet pipelines, rotating shafts are inserted in the power bin, turbine blades are fixed on the top ends of the rotating shafts, driving belt pulleys are welded at the bottom ends of the rotating shafts, driven belt pulleys are respectively hinged on the left, and the outside cover of driven pulley is equipped with the friction of rotation area, projection screen shell's right side below is installed shift knob through the wire.

Preferably, the support rod and the fixing sleeve are designed to be a sliding structure, one end of the support spring is supported on the inner wall of the fixing sleeve, and the other end of the support spring is supported on the clamping plate.

Preferably, the bottom of the air injection pipeline is uniformly provided with air outlets, and inclined baffles are welded inside the air outlets.

Preferably, the air blowers are arranged in two groups, the two groups of air blowers are respectively fixed above the two groups of fixed sleeves, and the top of the power bin is communicated with air outlets of the two groups of air blowers through hoses.

Preferably, the turbine blade is inserted in the power bin, and the turbine blade is designed into a rotating structure through the power bin and the projection screen shell.

Preferably, the rotating friction belt is sleeved outside the driving pulley and the two groups of driven pulleys, and fine brushes are uniformly embedded outside the rotating friction belt.

Compared with the prior art, the beneficial effects of the utility model are that: the screen dustproof device for the multimedia classroom performs air blowing and dust blowing operation when the curtain is placed and folded by arranging two groups of air blowers to work for air supply, effectively removes dust attached to the curtain, simultaneously, when the curtain moves in a matching manner, the rotary friction belt rotates under the driving of the driving belt pulley, and the dust attached to the curtain is removed in a manner that the rotary friction belt rotates to scrub the curtain, so that the dust removal effect of the device is greatly improved, and the screen dustproof device is dustproof in a dust removal manner, and is simple in structure and convenient to operate;

make fixed cover centre gripping on the projection screen shell through setting up supporting spring support grip block, the rigidity of fixing the cover, need not use connecting device such as bolt to connect, make the device convenient to install and dismantle, simultaneously, set up fixed sucking disc and evenly install on the grip block, when the grip block presss from both sides tight projection screen shell, under the effect of clamping force, fixed sucking disc adsorbs the back at the projection screen shell, make the device installation more firm, improved the device's structural stability greatly.

Drawings

Fig. 1 is a schematic structural front sectional view of the present invention.

Fig. 2 is a schematic view of the front view of the structure of the present invention.

Fig. 3 is a schematic side view of the structure of the present invention.

Fig. 4 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.

In the figure: 1. a projection screen housing; 2. a curtain; 3. fixing a sleeve; 4. a support bar; 5. a support spring; 6. a clamping plate; 7. fixing the sucker; 8. a blower; 9. an air injection pipeline; 10. a power bin; 11. a rotating shaft; 12. a turbine blade; 13. a drive pulley; 14. a driven pulley; 15. rotating the friction belt; 16. and a button is switched on and off.

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. 1-4, the present invention provides an embodiment: a screen dustproof device for a multimedia classroom comprises a projection screen shell 1, an air blower 8 and a switch button 16, a screen 2 is accommodated in the projection screen shell 1, the left side and the right side of the projection screen shell 1 are respectively sleeved with a fixing sleeve 3, a support rod 4 is inserted into the back of the fixing sleeve 3, a support spring 5 is sleeved outside the support rod 4, a clamping plate 6 is fixedly welded on the front of the support rod 4, a fixing sucker 7 is uniformly fixed on the front of the clamping plate 6, the support rod 4 and the fixing sleeve 3 are designed into a sliding structure, one end of the support spring 5 is supported on the inner wall of the fixing sleeve 3, the other end of the support spring 5 is supported on the clamping plate 6, when the screen dustproof device is installed, a worker can pull the support rod 4 backwards, because the clamping plate 6 is welded at one end of the support rod 4, under the driving of the support rod 4, the, make grip block 6 reserve sufficient space with the inside of fixed cover 3, afterwards, the staff establishes fixed cover 3 cover on projection screen shell 1, make projection screen shell 1 be located between grip block 6 and fixed cover 3, loosen bracing piece 4, under the elastic support of the supporting spring 5 that the cover was established in the bracing piece 4 outside, supporting spring 5 pushes up grip block 6 and moves forward, make grip block 6 and fixed cover 3's inside cooperation, with the device centre gripping in projection screen shell 1 top, because under the effect of clamping force, fixed suction cup 7 receives the local at projection screen shell 1 of absorption, grip block 6 centre gripping and fixed suction cup 7 adsorb both and mutually support, make the device firm the installation on projection screen shell 1, need not fix through connecting pieces such as bolt, make the device simple to operate, and convenient to detach.

The top of the fixed sleeve 3 is fixed with an air blower 8 through bolts, the model DY-CFJ01 of the air blower 8 is fixed and welded at the bottom of the fixed sleeve 3 with an air injection pipeline 9, the bottom of the air injection pipeline 9 is uniformly provided with air outlets, the inside of the air outlets is welded with inclined baffles, a power bin 10 is arranged at the middle position of the air injection pipeline 9, a rotating shaft 11 is inserted inside the power bin 10, the top end of the rotating shaft 11 is fixed with turbine blades 12, the bottom end of the rotating shaft 11 is welded with a driving belt pulley 13, the air blowers 8 are provided with two groups, the two groups of air blowers 8 are respectively fixed above the two groups of fixed sleeves 3, the top of the power bin 10 is communicated with air outlets of the two groups of air blowers 8 through a hose, when the curtain 2 moves up and down to place or place away, workers can, the generated air flow enters the inside of the air injection pipeline 9 through the power bin 10 and then is sprayed out through an air outlet formed in the bottom of the air injection pipeline 9, as the baffle welded in the air outlet formed in the bottom of the air injection pipeline 9 is installed in an inclined mode, under the diversion guide of the baffle, one part of air flow is sprayed out in an inclined mode and is sprayed on the surface of the curtain 2 to perform air blowing and dust removing operation on the curtain 2, the other part of air flow is blown downwards to prepare for follow-up work, the air flow is blown and removed when the curtain 2 moves, dust is effectively prevented from being attached to the curtain 2, the projection effect of the curtain 2 is caused to be influenced, the turbine blades 12 are inserted in the power bin 10, the turbine blades 12 and the projection screen shell 1 are designed into a rotating structure through the power bin 10, when the air flow enters the power bin 10 through a hose, the turbine blades 12 in the power bin 10 rotate under the blowing impact of the air flow, thereby the rotating shaft 11 welded below the turbine blade 12 rotates, and the power support is provided for the subsequent operation, and the use is convenient.

The left side and the right side of the air injection pipeline 9 are respectively hinged with a driven belt pulley 14, the outer side of the driven belt pulley 14 is sleeved with a rotating friction belt 15, a switch button 16 is arranged below the right side of the projection screen shell 1 through a lead, the rotating friction belt 15 is sleeved on the outer sides of the driving belt pulley 13 and the two groups of driven belt pulleys 14, fine brushes are uniformly inlaid on the outer sides of the rotating friction belt 15, when the rotating shaft 11 rotates, the rotating shaft 11 drives the driving belt pulley 13 sleeved at the lower end of the rotating shaft to rotate, the rotating friction belt 15 sleeved on the outer side of the driving belt pulley 13 rotates due to the rotation of the driving belt pulley 13, so that when the curtain 2 moves, the brushes arranged on the rotating friction belt 15 transversely brush the surface of the curtain 2, the curtain 2 is vertically and transversely brushed by force, the dust removal effect on the surface of the curtain 2 is greatly enhanced, and the screen is effectively cleaned by the brushes on the rotating friction, and the vertical downward air current that the air outlet jetted out below the jet-propelled pipeline 9 below blows to rotating friction area 15 on, blows off the attached dust on rotating friction area 15, the simple operation.

The working principle is as follows: during installation, a worker pulls the support rod 4 backwards, a proper position is reserved between the clamping plate 6 and the fixing sleeve 3 under the driving of the support rod 4, then the worker sleeves the fixing sleeve 3 on the outer side above the projection screen shell 1, the support rod 4 is loosened, under the elastic support of the support spring 5, the clamping plate 6 is matched with the inner wall of the fixing sleeve 3 to connect the device with the projection screen shell 1, under the action of clamping force, the fixing sucker 7 is tightly pressed and adsorbed on the back of the projection screen shell 1, so that the device is connected with the projection screen shell 1 more stably, the worker connects the device with an external power supply through a wire, the external power supply supplies power to the device, and then the worker starts the device by pressing the switch button 16;

when the screen 2 in the projection screen shell 1 is put down or put up, a worker presses the switch button 16 to electrify and start the two groups of air blowers 8, the air blowers 8 can supply air to the interior of the power bin 10 through the hoses after being started, and when wind power enters the interior of the power bin 10, the wind power can impact and blow the turbine blades 12 in the power bin 10 to rotate, so that the turbine blades 12 rotate to drive the driving belt pulley 13 at the bottom of the rotating shaft 11 to rotate, the rotating friction belt 15 on the outer side of the driving belt pulley 13 rotates, and when the rotating friction belt 15 rotates, the screen 2 is matched with the screen 2 to move up and down to brush off dust on the screen 2;

during operation, the wind that air-blower 8 sent out passes the inside that power storehouse 10 got into jet-propelled pipeline 9, spout from the gas outlet that jet-propelled pipeline 9 below was seted up, because jet-propelled pipeline 9 below gas outlet inside weld has the slope baffle, make from jet-propelled pipeline 9 below gas outlet spun air current divide into two strands, one sprays on curtain 2, dust removal dustproof operation is carried out to curtain 2, another group then sprays on running friction area 15, brush running curtain 2 on running friction area 15 and adhere to the dust and blow the mode of moving through the air current and clear up.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a screen dust keeper for multimedia classroom, includes projection screen shell (1), air-blower (8) and shift knob (16), its characterized in that: the curtain (2) is contained in the projection screen shell (1), the left side and the right side of the projection screen shell (1) are respectively sleeved with a fixed sleeve (3), a supporting rod (4) is inserted in the back of the fixed sleeve (3), a supporting spring (5) is sleeved on the outer side of the supporting rod (4), a clamping plate (6) is fixedly welded on the front side of the supporting rod (4), a fixed sucker (7) is uniformly fixed on the front side of the clamping plate (6), an air blower (8) is fixed on the top of the fixed sleeve (3) through a bolt, an air injection pipeline (9) is fixedly welded at the bottom of the fixed sleeve (3), a power bin (10) is arranged at the middle position of the air injection pipeline (9), a rotating shaft (11) is inserted in the power bin (10), a turbine blade (12) is fixed on the top of the rotating shaft (11), and a driving belt pulley (13) is welded at the bottom, the left and right sides of jet-propelled pipeline (9) articulates respectively has driven pulley (14), and the outside cover of driven pulley (14) is equipped with and rotates friction band (15), shift knob (16) are installed through the wire to the right side below of projection screen shell (1).

2. The screen dust-proof device for a multimedia classroom as claimed in claim 1, wherein: the support rod (4) and the fixed sleeve (3) are designed to be of a sliding structure, one end of the support spring (5) is supported on the inner wall of the fixed sleeve (3), and the other end of the support spring (5) is supported on the clamping plate (6).

3. The screen dust-proof device for a multimedia classroom as claimed in claim 1, wherein: air outlets are uniformly formed in the bottom of the air injection pipeline (9), and inclined baffles are welded inside the air outlets.

4. The screen dust-proof device for a multimedia classroom as claimed in claim 1, wherein: the air blowers (8) are arranged in two groups, the air blowers (8) are fixed above the two groups of fixing sleeves (3) respectively, and the top of the power bin (10) is communicated with air outlets of the two groups of air blowers (8) through hoses.

5. The screen dust-proof device for a multimedia classroom as claimed in claim 1, wherein: the turbine blade (12) is inserted in the power bin (10), and the turbine blade (12) and the projection screen shell (1) are designed into a rotating structure through the power bin (10).

6. The screen dust-proof device for a multimedia classroom as claimed in claim 1, wherein: the outer sides of the driving belt pulley (13) and the two groups of driven belt pulleys (14) are sleeved with the rotating friction belt (15), and fine brushes are uniformly inlaid in the outer sides of the rotating friction belt (15).