CN211393407U

CN211393407U - Projection screen cloth coiling mechanism for computer teaching

Info

Publication number: CN211393407U
Application number: CN201921267052.XU
Authority: CN
Inventors: 巫红霞
Original assignee: Zhenjiang College
Current assignee: Zhenjiang College
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-09-01
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a projection curtain cloth coiling mechanism for computer teaching. It is including being used for carrying out the rolling subassembly of rolling to the curtain and being used for in rolling subassembly complex carrying out clear clean subassembly to the curtain, the rolling subassembly includes the rolling pivot, install the epaxial reel that is used for carrying out the rolling to the curtain of rolling pivot and install the driving gear in the rolling pivot, clean subassembly includes the axis of rotation, install at epaxial brush section of thick bamboo and driven gear of axis of rotation, rolling pivot and axis of rotation parallel arrangement can make the brush on the brush section of thick bamboo clean the curtain surface, the one end of rolling pivot is connected with a driving motor, intermeshing between driving gear and the driven gear, thereby can make brush section of thick bamboo and reel synchronous revolution. The advantages are that: the maintenance and the replacement are convenient and quick; the curtain is convenient to clean, and when the curtain is clean, the possible wrinkles on the surface of the curtain can be smoothed through the rotation of the brush cylinders in different directions, so that the curtain is cleaner to use and more smooth and stable to wind.

Description

Projection screen cloth coiling mechanism for computer teaching

Technical Field

The invention relates to a device for computer teaching, in particular to a projection screen cloth winding device for computer teaching.

Background

In daily computer teaching process, the essential curtain that adopts is as the screen of projection, among the prior art, the curtain commonly used all goes up and down through motor drive, in use, the curtain is because of arranging external environment in, the above-mentioned unavoidable can be infected with a lot of dusts, in use, inevitable have the fold scheduling problem to produce yet, in order to keep curtain surface clean, when using the curtain, only clean through manual mode in the rolling of projection curtain, of course, in order to avoid this complicated operation, also there is a small amount of device to increase one row of brush in batching import department, however, this kind of mode is simple crude, clean effect is not good, and after long-term use, the overhaul maintenance of curtain is also not convenient enough, this use impression that has just reduced the device.

Disclosure of Invention

The invention aims to provide a projection screen coiling device for computer teaching, which has good cleaning effect and simple and convenient maintenance and replacement and can ensure that the screen is smooth and stable.

In order to solve the technical problem, the projection screen winding device for computer teaching comprises a winding assembly and a cleaning assembly, wherein the winding assembly is used for winding a screen, the cleaning assembly is matched with the winding assembly and used for cleaning the screen, the winding assembly comprises a winding rotating shaft, a winding drum and a driving gear, the winding drum is installed on the winding rotating shaft and used for winding the screen, the driving gear is installed on the winding rotating shaft, the cleaning assembly comprises a rotating shaft, a brush drum and a driven gear, the brush drum and the driven gear are installed on the rotating shaft, the winding rotating shaft and the rotating shaft are arranged in parallel, brushes on the brush drum can clean the surface of the screen, one end of the winding rotating shaft is connected with a driving motor, and the driving gear and the driven gear are meshed with each other, so that the brush drum.

The cleaning assemblies are arranged in two groups, and the two groups of cleaning assemblies are arranged below the winding assembly in parallel.

Winding subassembly and clean subassembly are installed in a casing, rolling pivot and axis of rotation are all installed in the casing through bearing horizontal rotation, driving motor fixed mounting is on the casing.

The winding drum is fixedly sleeved and arranged on the winding rotating shaft, limiting baffle plates are symmetrically arranged at two ends of the winding drum, the driving gear is fixedly arranged on the winding rotating shaft and located on the outer side of the winding drum, the brush drum is fixedly sleeved and arranged on the rotating shaft, and the driven gear is fixedly arranged on the rotating shaft and located on the outer side of the brush drum.

The lower extreme middle part of casing is provided with the opening that can make the curtain pass through, the opening is located between two brush section of thick bamboo of two sets of clean subassemblies.

An access cover is mounted at the top of the shell.

The winding mechanism is characterized in that the driving motor is a Mitsubishi servo motor, the driving motor is fixedly installed on the outer side of the shell through the installation seat, and an output shaft of the driving motor penetrates through the side wall of the shell and is fixedly installed with the winding rotating shaft.

The driving motor is externally provided with a protective cover, the tail end of the protective cover is fixedly connected to the outer side of the shell through a fastener, and a plurality of groups of heat dissipation holes are uniformly distributed in the right side of the protective cover in a penetrating manner.

Be provided with the draw-in groove on the reel, the relative inboard symmetry of the limit baffle of both sides be provided with perpendicularly with draw-in groove complex sliding tray, install the card strip on the draw-in groove, the both ends of card strip stretch into the sliding tray of both sides respectively, be provided with the spring between the upside both ends of card strip and the interior upper wall of sliding tray, install the upper end of curtain draw-in groove and card between the strip.

The curtain is through between two brush section of thick bamboo of two sets of clean subassemblies and outside stretching out the opening, curtain lower extreme edge fixed mounting has the metal pole, the lower extreme middle part of metal pole is provided with the ring.

The invention has the advantages that:

1. the upper end of the curtain is pressed through the matching of the clamping strips and the clamping grooves, and when the curtain is used, the clamping strips are pressed by the springs to be matched with the clamping grooves, so that the upper end of the curtain is not easy to fall off;

2. utilize driving motor to drive the rolling pivot and rotate, the winding can be rolled up or put down according to driving motor driven rotation direction at the outlying curtain of reel, and when the curtain is rolled up or put down, driving gear and rolling pivot synchronous rotation, driving gear and driven gear meshing transmission, driven gear rotates and to drive axis of rotation and axis of rotation outlying brush section of thick bamboo and rotate, brush section of thick bamboo can be located the both sides of curtain respectively and clean it like this, when clear, can smooth the possible fold in curtain surface through the brush section of thick bamboo rotation of equidirectional, it is cleaner to use, the winding is more level and more stable.

Drawings

FIG. 1 is a schematic structural view of a projection screen cloth winding device for computer teaching according to the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

fig. 3 is a schematic view of the structure of the roll of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the projection screen winding device for computer teaching of this embodiment includes a winding assembly for winding a screen and a cleaning assembly for cleaning the screen, the winding assembly and the cleaning assembly are mounted in a housing 1, the winding assembly includes a winding shaft 3, a winding drum 4 mounted on the winding shaft for winding a screen 6, and a driving gear 5 mounted on the winding shaft, specifically, the winding drum 4 is fixedly sleeved on the winding shaft 3, two ends of the winding drum 4 are symmetrically provided with limit baffles 41, the screen 6 is wound around the winding drum 4, the driving gear 5 is fixedly mounted on the winding shaft 3 and located outside the winding drum 4, the cleaning assembly includes a rotating shaft 8, a brush drum 10 mounted on the rotating shaft, and a driven gear 9, specifically, the brush drum 10 is fixedly sleeved on the rotating shaft 8, the driven gear 9 is fixedly arranged on the rotating shaft 8 and positioned outside the brush drum 10, the rolling rotating shaft 3 and the rotating shaft 8 are horizontally and rotatably arranged in the shell 1 through bearings, the rolling rotating shaft 3 and the rotating shaft 8 are arranged in parallel and can enable the brush on the brush drum 10 to clean the surface of the curtain 6, the right side end of the rolling rotating shaft 3 is connected with a driving motor 11 fixedly arranged on the shell, the driving motor 11 adopts Mitsubishi servo motor MR-J3 series, the driving motor 11 is fixedly arranged on the right side of the shell through a mounting seat in a riveting way, an output shaft of the driving motor 11 movably penetrates through the right side wall of the shell and is fixedly welded with the right end of the rolling rotating shaft 3, a control circuit of the driving motor 11 is connected with a permanent power supply in a building, the driving motor 11 drives the rolling rotating shaft 3 to synchronously rotate after driving, and the driving, thereby can make a brush section of thick bamboo 10 and 4 synchronous rotations of reel, 11 outer cup joints of driving motor are provided with safety cover 12, the end of safety cover 12 is through riveting mode fixed connection on the right side lateral wall of casing, the right side of safety cover 12 evenly runs through the distribution and has multiunit louvre 13, the lower extreme middle part level of casing 1 runs through and is provided with the opening 7 that can make the curtain pass through, opening 7 length and 4 length of reel are equivalent, curtain 6 is downward and pass through opening 7 through a brush section of thick bamboo 10, the lower extreme edge of curtain 6 is made up and is fixed with metal pole 61, the welding of metal pole 61 lower extreme middle part is equipped with ring 62.

Example two:

referring to fig. 1-2, the projection screen cloth winding device for computer teaching of this embodiment includes a winding assembly for winding the screen cloth and a cleaning assembly for cleaning the screen cloth, the winding assembly and the cleaning assembly are installed in a housing 1, the top of the housing 1 is fixedly installed with an access cover 2 by riveting, the winding assembly includes a winding shaft 3, a winding drum 4 installed on the winding shaft for winding the screen cloth 6 and a driving gear 5 installed on the winding shaft, as can be seen from the figure, the winding drum 4 is fixedly sleeved on the periphery of the winding shaft 3, two ends of the winding drum 4 are symmetrically welded with limit baffles 41, the winding shaft 3 drives the winding drum 4 to synchronously rotate, the driving gear 5 is welded and fixed on the periphery of the winding shaft 3 and located on the left side of the winding drum 4, the cleaning assembly includes a rotating shaft 8, A brush cylinder 10 and a driven gear 9 which are arranged on a rotating shaft, as can be seen from the figure, the brush cylinder 10 is fixedly sleeved on the periphery of the rotating shaft 8, the driven gear 9 is welded on the periphery of the rotating shaft 8 and is positioned on the left side of the brush cylinder 10, two groups of cleaning assemblies are arranged, the two groups of cleaning assemblies are arranged below the rolling assembly in parallel, the rolling rotating shaft 3 and the rotating shaft 8 are arranged in parallel and can enable the brush on the brush cylinder 10 to clean the surface of the curtain 6, as can be seen from the figure, the rolling rotating shaft 3 and the two rotating shafts 8 are arranged in a shape of a Chinese character pin with equal distance, one end of the rolling rotating shaft 3 is connected with a driving motor 11 which is fixedly arranged on a shell, the driving gear 5 and the driven gear 9 are matched with each other and are in meshing transmission, so that the brush cylinder 10 and the winding drum 4 can rotate synchronously, the radius of the driving gear 5 is 1., the middle part of the lower end of the shell 1 is horizontally provided with an opening 7 which can enable the curtain to pass through, the length of the opening 7 is equivalent to that of the winding drum 4, the opening 7 is positioned between two brush cylinders 10 of two groups of cleaning components, the curtain 6 passes between the two brush cylinders 10 of the two groups of cleaning components and extends out of the opening 7, in order to improve the daily maintenance and replacement efficiency of the curtain 6 and improve the stability in use, on the basis of the embodiment 1, the upper end of the winding drum 4 is horizontally embedded with a clamping groove 42, the opposite inner sides of the limiting baffles 41 on two sides are symmetrically and vertically embedded with sliding grooves 43 matched with the clamping groove 42, two ends of the sliding grooves 43 and the clamping groove 42 are aligned, the clamping groove 42 is provided with a clamping strip 44, the clamping strip 44 is formed by bonding and fixing a horizontal rod positioned on the upper side and a rubber strip positioned on the lower side, two ends of the horizontal rod of the clamping strip, the rubber pressing strip of the clamping strip 44 is movably connected with the clamping groove 42 in a clearance fit mode, a spring 45 is arranged between the two ends of the upper side of the clamping strip 44 and the inner upper wall of the sliding groove 43, the upper end of the curtain 6 is installed between the clamping groove 42 and the clamping strip 44, and the upper end of the curtain 6 is pressed through the rubber pressing strip and the clamping groove 42 in a clearance fit mode.

The working principle is as follows:

when the curtain is used, the upper end of the curtain 6 is pressed through the matching of the clamping strips 44 and the clamping grooves 42, when the curtain is used, the clamping strips 44 are matched with the clamping grooves 42 through the compression of the springs 45, so that the upper end of the curtain 6 is not easy to fall off, the clamping strips 44 are pulled upwards during maintenance, the springs 45 are gradually compressed, the upper end of the curtain 6 can be taken out from between the clamping strips 44 and the clamping grooves 42, the maintenance and the replacement are convenient and quick, the driving motor 11 drives the rolling rotating shaft 3 to rotate, the curtain 6 wound on the periphery of the winding drum 4 can be rolled up or put down according to the rotating direction driven by the driving motor 11, when the curtain 6 is rolled up or put down, the driving gear 5 and the rolling rotating shaft 3 synchronously rotate, the driving gear 5 and the driven gear 9 are in meshed transmission, the driven gear 9 rotates to drive the rotating shaft 8 and the hairbrush cylinders 10 on the periphery of the rotating shaft 8 to rotate, when the curtain is cleaned, the brush cylinders 10 in different directions can rotate to smooth out possible wrinkles on the surface of the curtain 6, so that the curtain is cleaner to use and is smoother and more stable to wind.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a projection curtain coiling mechanism for computer teaching which characterized in that: comprises a rolling component for rolling the curtain and a cleaning component which is matched with the rolling component and is used for cleaning the curtain, the winding component comprises a winding rotating shaft (3), a winding drum (4) which is arranged on the winding rotating shaft and used for winding a curtain (6) and a driving gear (5) which is arranged on the winding rotating shaft, the cleaning component comprises a rotating shaft (8), a brush barrel (10) and a driven gear (9) which are arranged on the rotating shaft, the rolling rotating shaft (3) and the rotating shaft (8) are arranged in parallel and can enable the brush on the brush drum (10) to clean the surface of the curtain (6), one end of the winding rotating shaft (3) is connected with a driving motor (11), the driving gear (5) and the driven gear (9) are meshed with each other, so that the brush drum (10) and the winding drum (4) can synchronously rotate.

2. The projection screen cloth winding device for computer teaching as claimed in claim 1, wherein: the cleaning assemblies are arranged in two groups, and the two groups of cleaning assemblies are arranged below the winding assembly in parallel.

3. The projection screen cloth winding device for computer teaching as claimed in claim 1 or 2, wherein: winding subassembly and clean subassembly are installed in a casing (1), winding pivot (3) and axis of rotation (8) are all installed in casing (1) through bearing horizontal rotation, driving motor fixed mounting is on the casing.

4. The projection screen cloth winding device for computer teaching as claimed in claim 3, wherein: reel (4) cup joint fixedly and set up on rolling pivot (3), the both ends symmetry of reel (4) is provided with limit baffle (41), driving gear (5) fixed mounting just is located the outside of reel (4) on rolling pivot (3), brush section of thick bamboo (10) cup joint fixedly and set up on axis of rotation (8), driven gear (9) fixed mounting just is located the outside of brush section of thick bamboo (10) on axis of rotation (8).

5. The projection screen cloth winding device for computer teaching as claimed in claim 3, wherein: the lower extreme middle part of casing (1) is provided with opening (7) that can make the curtain pass through, opening (7) are located between two brush section of thick bamboo (10) of two sets of clean subassemblies.

6. The projection screen cloth winding device for computer teaching as claimed in claim 5, wherein: and an access cover (2) is arranged at the top of the shell (1).

7. The projection screen cloth winding device for computer teaching as claimed in claim 1, 2, 4 or 6, wherein: the winding machine is characterized in that the driving motor (11) is a Mitsubishi servo motor, the driving motor (11) is fixedly installed on the outer side of the shell through the installation seat, and an output shaft of the driving motor (11) penetrates through the side wall of the shell to be fixedly installed with the winding rotating shaft (3).

8. The projection screen cloth winding device for computer teaching as claimed in claim 7, wherein: the improved motor protection device is characterized in that a protection cover (12) is arranged outside the driving motor (11), the tail end of the protection cover (12) is fixedly connected to the outer side of the shell through a fastener, and a plurality of groups of heat dissipation holes (13) are uniformly distributed in the right side of the protection cover (12) in a penetrating mode.

9. The projection screen cloth winding device for computer teaching as claimed in claim 1, 2, 4, 6 or 8, wherein: be provided with draw-in groove (42) on reel (4), the relative inboard symmetry of the limit baffle (41) of both sides is provided with perpendicularly with draw-in groove (42) complex sliding tray (43), install card strip (44) on draw-in groove (42), the both ends of card strip (44) stretch into respectively in the sliding tray (43) of both sides, be provided with spring (45) between the upside both ends of card strip (44) and the interior upper wall of sliding tray (43), install the upper end of curtain (6) between draw-in groove (42) and card strip (44).

10. The projection screen cloth winding device for computer teaching as claimed in claim 9, wherein: curtain (6) are through between two brush section of thick bamboo (10) of two sets of clean subassemblies and outside stretching out opening (7), curtain (6) lower extreme edge fixed mounting has metal pole (61), the lower extreme middle part of metal pole (61) is provided with ring (62).