阅读说明：本技术 一种具有防堵塞和除尘功能的投影设备 (Projection equipment with prevent blockking up and dust removal function ) 是由 张刚 于 2019-10-25 设计创作，主要内容包括：本发明涉及一种具有防堵塞和除尘功能的投影设备,包括主机、镜头和两个滤网,还包括除尘机构和防堵塞机构,所述除尘机构包括移动组件、传动轴、蜗杆、转轴、传动组件、除尘组件和两个第一轴承,所述除尘组件包括第二轴承、连接杆和清洁杆,所述防堵塞机构包括蜗轮、支撑轴、两个第三轴承和两个刮板,该具有防堵塞和除尘功能的投影设备通过除尘机构,实现了对镜头除尘的功能,避免了灰尘粘附在镜头上,影响投影效果,通过防堵塞机构,可以将滤网上的灰尘刮落,减小了滤网堵塞的几率,避免影响主机内外空气的流通。(The invention relates to a projection device with anti-blocking and dust-removing functions, which comprises a host, a lens, two filter screens, a dust-removing mechanism and an anti-blocking mechanism, wherein the dust-removing mechanism comprises a moving assembly, a transmission shaft, a worm, a rotating shaft, a transmission assembly, a dust-removing assembly and two first bearings, the dust-removing assembly comprises a second bearing, a connecting rod and a cleaning rod, the anti-blocking mechanism comprises a worm wheel, a supporting shaft, two third bearings and two scraping plates, the projection device with the anti-blocking and dust-removing functions realizes the function of removing dust on the lens through the dust-removing mechanism, avoids dust from adhering to the lens and influencing the projection effect, can scrape off the dust on the filter screens through the anti-blocking mechanism, reduces the probability of blocking the filter screens, and avoids influencing the circulation of air inside and outside the.)

1. The projection equipment with the anti-blocking and dust-removing functions comprises a host (1), a lens (2) and two filter screens (3), wherein the lens (2) is arranged on one side of the host (1), heat dissipation ports are formed in two sides, perpendicular to the lens (2), of the host (1), the filter screens (3) correspond to the heat dissipation ports one by one, and the filter screens (3) are fixedly connected with the inner walls of the heat dissipation ports;

the dust removal mechanism comprises a moving assembly, a transmission shaft (11), a worm (10), a rotating shaft (9), a transmission assembly, a dust removal assembly and two first bearings, wherein the two first bearings are fixedly connected with the inner walls of the two sides of the host (1) respectively, the two ends of the worm (10) are fixedly connected with one end of the transmission shaft (11) and one end of the rotating shaft (9) respectively, the other end of the transmission shaft (11) and the other end of the rotating shaft (9) are fixedly connected with the inner rings of the two first bearings respectively, the worm (10) is connected with the anti-blocking mechanism, the rotating shaft (9) is connected with the moving assembly, and the transmission shaft (11) is connected with the dust removal assembly through the transmission assembly;

the dust removal assembly comprises a second bearing, a connecting rod (14) and a cleaning rod (15), the second bearing is fixed on the inner wall of one side, close to the lens (2), of the host (1), a through hole is formed in one side, close to the lens (2), of the host (1), one end of the connecting rod (14) is connected with the transmission assembly, the other end of the connecting rod (14) penetrates through the through hole to be arranged outside the host (1), the connecting rod (14) is fixedly connected with the inner ring of the second bearing, and the other end of the connecting rod (14) is fixedly connected with the cleaning rod (15);

prevent blockking up mechanism includes worm wheel (16), back shaft (17), two third bearings and two scraper blades (18), the third bearing is fixed on the inner wall of host computer (1) one side that is close to filter screen (3), two third bearings are passed respectively at the both ends of back shaft (17), the inner circle fixed connection of back shaft (17) and third bearing, one side of host computer (1) that is close to filter screen (3) is equipped with the perforation, scraper blade (18) and filter screen (3) one-to-one, scraper blade (18) are supported and are leaned on filter screen (3), the both ends of back shaft (17) are passed two perforations and two scraper blade (18) fixed connection respectively, worm wheel (16) and back shaft (17) fixed connection, worm wheel (16) and worm (10) meshing.

2. The projection device with the anti-clogging and dust-removing functions according to claim 1, wherein the moving assembly comprises a gear (8), a rack (6), a moving rod (5), a spring (7) and the moving rod (5), a circular hole is formed above the main body (1), the gear (8) is fixed on a rotating shaft (9), the rack (6) is vertically arranged inside the main body (1), the gear (8) is meshed with the rack (6), two ends of the spring (7) are respectively connected with the bottom end of the rack (6) and the bottom inside the main body (1), one end of the moving rod (5) is fixedly connected with the rack (6), and the other end of the moving rod (5) penetrates through the circular hole and is arranged outside the main body (1).

3. The projection device with the anti-clogging and dust-removing functions as claimed in claim 2, wherein the moving assembly further comprises a fixed plate (4), and one end of the moving rod (5) far away from the rack (6) is fixedly connected with the fixed plate (4).

4. The projection device with the anti-clogging and dust-removing functions as claimed in claim 3, wherein the moving assembly further comprises a guide rod (19), the rack (6) is provided with a small hole, two ends of the guide rod (19) are respectively fixedly connected with the top and the bottom of the main body (1), the guide rod (19) penetrates through the small hole, and the rack (6) is slidably connected with the guide rod (19).

5. The projection device with the anti-clogging and dust-removing functions according to claim 4, wherein the moving assembly further comprises three limiting rods (20), one end of each limiting rod (20) is circumferentially and uniformly fixed on the inner wall of the corresponding small hole, three grooves are formed in the guide rod (19), the limiting rods (20) correspond to the grooves one to one, the other ends of the limiting rods (20) are arranged inside the grooves, and the limiting rods (20) are slidably connected with the grooves.

6. The projection device with the anti-clogging and dust-removing functions as claimed in claim 5, wherein the end of the limiting rod (20) far away from the inner wall of the small hole is provided with a notch, a ball (21) is arranged in the notch, the center of the ball (21) is arranged in the notch, and the ball (21) abuts against the inner wall of the groove.

7. The projection device with anti-clogging and dust-removing functions as claimed in claim 6, wherein said rack (6) is coated with grease.

8. The projection device with the anti-clogging and dust-removing functions as claimed in claim 1, wherein the transmission assembly comprises a belt (13) and two rotating wheels (12), the two rotating wheels (12) are respectively fixedly connected with the transmission shaft (11) and the connecting rod (14), and the two rotating wheels (12) are connected through the belt (13).

9. The projection device with the anti-clogging and dust-removing functions as claimed in claim 1, wherein a side of the cleaning rod (15) close to the lens (2) is provided with a brush.

10. The projection device with the anti-clogging and dust-removing functions as claimed in claim 1, wherein the worm (10), the rotating shaft (9) and the transmission shaft (11) are of an integrally formed structure.

Technical Field

The invention relates to the field of projection equipment, in particular to projection equipment with anti-blocking and dust-removing functions.

Background

A projector, also called a projector, is a device that can project images or videos onto a curtain, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, etc. through different interfaces to play corresponding video signals. Projectors are widely used in homes, offices, schools and entertainment places at present, and have different types such as CRT, LCD and DLP according to different working modes.

The camera lens of current projecting apparatus does not shelter from the device usually, expose outside always to increased the probability of dust adhesion on the projecting lamp, influenced the projection effect of projecting apparatus, moreover, current projecting apparatus is generally equipped with the thermovent on the host computer and carries out the work of dispelling the heat, after carrying out the work of dispelling the heat for a long time, the thermovent is blockked up by the ash easily, thereby influence the circulation of the inside and outside air of host computer, thereby influence the radiating effect, greatly reduced the practicality of current projecting apparatus.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the projection equipment with the functions of preventing blockage and removing dust is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a projection device with anti-blocking and dust-removing functions comprises a host, a lens, two filter screens, a dust-removing mechanism and an anti-blocking mechanism, wherein the lens is arranged on one side of the host, heat dissipation ports are formed in two sides of the host, which are perpendicular to the lens, the filter screens correspond to the heat dissipation ports one by one, the filter screens are fixedly connected with the inner walls of the heat dissipation ports, and the dust-removing mechanism and the anti-blocking mechanism are arranged in the host;

the dust removal mechanism comprises a moving assembly, a transmission shaft, a worm, a rotating shaft, a transmission assembly, a dust removal assembly and two first bearings, the two first bearings are fixedly connected with the inner walls of the two sides of the host respectively, the two ends of the worm are fixedly connected with one end of the transmission shaft and one end of the rotating shaft respectively, the other end of the transmission shaft and the other end of the rotating shaft are fixedly connected with the inner rings of the two first bearings respectively, the worm is connected with the anti-blocking mechanism, the rotating shaft is connected with the moving assembly, and the transmission shaft is connected with the dust removal assembly through the transmission assembly;

the dust removal assembly comprises a second bearing, a connecting rod and a cleaning rod, the second bearing is fixed on the inner wall of one side, close to the lens, of the host, a through hole is formed in one side, close to the lens, of the host, one end of the connecting rod is connected with the transmission assembly, the other end of the connecting rod penetrates through the through hole and is arranged outside the host, the connecting rod is fixedly connected with the inner ring of the second bearing, and the other end of the connecting rod is fixedly connected with the cleaning rod;

prevent blockking up mechanism includes worm wheel, back shaft, two third bearings and two scraper blades, the third bearing is fixed on the inner wall of the one side of being close to the filter screen of host computer, two third bearings are passed respectively at the both ends of back shaft, the inner circle fixed connection of back shaft and third bearing, one side of being close to the filter screen of host computer is equipped with the perforation, scraper blade and filter screen one-to-one, the scraper blade supports and leans on the filter screen, the both ends of back shaft pass two perforation and two scraper blade fixed connection respectively, worm wheel and back shaft fixed connection, worm wheel and worm meshing.

As preferred, in order to drive the pivot and rotate, the removal subassembly includes gear, rack, carriage release lever, spring and carriage release lever, the top of host computer is equipped with the round hole, the gear is fixed in the pivot, the vertical inside that sets up at the host computer of rack, gear and rack meshing, the both ends of spring are connected with the bottom of rack and the bottom in the host computer respectively, the one end and the rack fixed connection of carriage release lever, the other end of carriage release lever passes the round hole and sets up the outside at the host computer.

Preferably, in order to prevent the moving rod from being embedded into the main body, the moving assembly further comprises a fixing plate, and one end of the moving rod, which is far away from the rack, is fixedly connected with the fixing plate.

Preferably, in order to limit the moving direction of the rack, the moving assembly further comprises a guide rod, a small hole is formed in the rack, two ends of the guide rod are fixedly connected with the top and the bottom in the host respectively, the guide rod penetrates through the small hole, and the rack is connected with the guide rod in a sliding mode.

Preferably, in order to avoid rotation of the rack during movement, the moving assembly further comprises three limiting rods, one ends of the limiting rods are circumferentially and uniformly fixed on the inner walls of the small holes, three grooves are formed in the guide rods, the limiting rods correspond to the grooves one to one, the other ends of the limiting rods are arranged inside the grooves, and the limiting rods are connected with the grooves in a sliding mode.

Preferably, in order to make the limiting rod move smoothly in the groove, one end of the limiting rod, which is far away from the inner wall of the small hole, is provided with a notch, a ball is arranged in the notch, the center of the ball is arranged in the notch, and the ball abuts against the inner wall of the groove.

Preferably, the rack is coated with grease in order to make the gear smoothly rotate.

Preferably, in order to transmit power, the transmission assembly comprises a belt and two rotating wheels, the two rotating wheels are respectively and fixedly connected with the transmission shaft and the connecting rod, and the two rotating wheels are connected through the belt.

Preferably, in order to improve the cleaning effect, a brush is arranged on one side of the cleaning rod close to the lens.

Preferably, in order to improve the connection stability of the worm and the rotating shaft and the transmission shaft, the worm, the rotating shaft and the transmission shaft are in an integrally formed structure.

The projection equipment with the anti-blocking and dust-removing functions has the advantages that the dust-removing function of the lens is realized through the dust-removing mechanism, dust is prevented from being adhered to the lens to influence the projection effect, the dust on the filter screen can be scraped through the anti-blocking mechanism, the probability of blocking the filter screen is reduced, and the influence on the circulation of air inside and outside the host machine is avoided.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of a projection apparatus with anti-clogging and dust-removing functions according to the present invention;

FIG. 2 is a top view of the dust removing mechanism of the projection apparatus with anti-clogging and dust removing functions according to the present invention;

FIG. 3 is a side view of a dust mechanism of a projection device with anti-jam and dust removal features according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 2;

in the figure: 1. the automatic cleaning device comprises a main machine, a lens, a filter screen, a fixing plate, a moving rod, a rack, a spring, a gear, a rotating shaft, a worm, a transmission shaft, a rotating wheel, a belt, a connecting rod, a cleaning rod, a worm wheel, a worm 17, a supporting shaft, a scraper 18, a guide rod, a limiting rod, a ball 21 and a cleaning rod, wherein the fixing plate is 4, the moving rod is 5, the rack is 6, the spring is 7, the gear is 8, the rotating shaft is 9, the worm is 10, the transmission shaft is 11, the.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a projection apparatus with anti-blocking and dust-removing functions comprises a host 1, a lens 2, two filter screens 3, a dust-removing mechanism and an anti-blocking mechanism, wherein the lens 2 is arranged on one side of the host 1, heat dissipation ports are arranged on two sides of the host 1 perpendicular to the lens 2, the filter screens 3 correspond to the heat dissipation ports one by one, the filter screens 3 are fixedly connected with the inner walls of the heat dissipation ports, and the dust-removing mechanism and the anti-blocking mechanism are arranged inside the host 1;

a PLC, i.e., a programmable logic controller, which employs a programmable memory for storing therein a program, executing instructions for user-oriented operations such as logic operation, sequence control, timing, counting, and arithmetic operation, and controlling various types of machines or production processes through digital or analog input/output, is essentially a computer dedicated for industrial control, has a hardware structure substantially the same as that of a microcomputer, and is generally used for data processing and instruction reception and output for realizing central control.

This projection equipment with prevent blockking up and dust removal function passes through dust removal mechanism, has realized the function to the dust removal of lens 2, has avoided the dust adhesion on camera lens 2, influences the projection effect, through preventing blockking up the mechanism, can scrape the dust on the filter screen 3 off, has reduced the probability that filter screen 3 blockked up, avoids influencing the circulation of the interior outer air of host computer 1.

As shown in fig. 2-3, the dust removing mechanism includes a moving assembly, a transmission shaft 11, a worm 10, a rotation shaft 9, a transmission assembly, a dust removing assembly, and two first bearings, the two first bearings are respectively and fixedly connected with inner walls of two sides of the main machine 1, two ends of the worm 10 are respectively and fixedly connected with one end of the transmission shaft 11 and one end of the rotation shaft 9, the other end of the transmission shaft 11 and the other end of the rotation shaft 9 are respectively and fixedly connected with inner rings of the two first bearings, the worm 10 is connected with the anti-clogging mechanism, the rotation shaft 9 is connected with the moving assembly, and the transmission shaft 11 is connected with the dust removing assembly through the transmission assembly;

the dust removal assembly comprises a second bearing, a connecting rod 14 and a cleaning rod 15, the second bearing is fixed on the inner wall of one side, close to the lens 2, of the host 1, a through hole is formed in one side, close to the lens 2, of the host 1, one end of the connecting rod 14 is connected with the transmission assembly, the other end of the connecting rod 14 penetrates through the through hole and is arranged outside the host 1, the connecting rod 14 is fixedly connected with the inner ring of the second bearing, and the other end of the connecting rod 14 is fixedly connected with the cleaning rod 15;

when dust removal work is needed, the movable assembly works manually, the rotating shaft 9 is driven to rotate, the worm 10 and the transmission shaft 11 are driven to rotate synchronously, the connecting rod 14 is driven to rotate through the transmission assembly, the cleaning rod 15 is driven to rotate, dust on the lens 2 is swept, and accordingly the phenomenon that the dust is adhered to the lens 2 to affect the projection effect is avoided.

As shown in fig. 2, the anti-blocking mechanism includes a worm wheel 16, a support shaft 17, two third bearings and two scrapers 18, the third bearings are fixed on the inner wall of one side of the host 1 close to the filter screen 3, the two ends of the support shaft 17 pass through the two third bearings respectively, the inner ring of the support shaft 17 is fixedly connected with the inner ring of the third bearings, one side of the host 1 close to the filter screen 3 is provided with through holes, the scrapers 18 correspond to the filter screen 3 one by one, the scrapers 18 abut against the filter screen 3, the two ends of the support shaft 17 pass through the two through holes and are fixedly connected with the two scrapers 18 respectively, the worm wheel 16 is fixedly connected with the support shaft 17, and the worm wheel 16 is meshed.

When carrying out dust removal work, the people is for making the removal subassembly work, it rotates to drive pivot 9, thereby drive worm 10 and 11 synchronous rotations of transmission shaft, meshing through worm 10 and worm wheel 16, make worm wheel 16 rotate, thereby it rotates to drive back shaft 17, it rotates round back shaft 17 to drive scraper blade 18, thereby rotation through scraper blade 18, scrape the dust of adhesion on the filter screen 3, avoid the dust jam on filter screen 3, influence the circulation of the interior outer air of host computer 1, thereby avoid influencing the radiating effect.

As preferred, in order to drive pivot 9 and rotate, the removal subassembly includes gear 8, rack 6, carriage release lever 5, spring 7 and carriage release lever 5, the top of host computer 1 is equipped with the round hole, gear 8 is fixed on pivot 9, the vertical inside that sets up at host computer 1 of rack 6, gear 8 and rack 6 meshing, the both ends of spring 7 are connected with the bottom of rack 6 and the bottom in the host computer 1 respectively, the one end and the rack 6 fixed connection of carriage release lever 5, the other end of carriage release lever 5 passes the round hole and sets up the outside at host computer 1.

When dust removal is needed, the movable rod 5 is manually driven to move downwards, so that the rack 6 moves downwards, meanwhile, the spring 7 is compressed, the gear 8 rotates through the meshing of the gear 8 and the rack 6, the rotating shaft 9 is driven to rotate, thereby driving the worm 10 and the transmission shaft 11 to synchronously rotate, driving the connecting rod 14 to rotate through the transmission component, thereby rotating the cleaning rod 15 to sweep away dust on the lens 2, thereby preventing dust from adhering to the lens 2 and affecting the projection effect, then opening the moving rod 5, and making the rack 6 move upwards through the restoring force of the spring 7, so that the gear 8 rotates reversely, thereby driving the rotating shaft 9, the worm 10 and the transmission shaft 11 to rotate reversely, the cleaning rod 15 rotates reversely through the transmission assembly, so that the cleaning rod 15 is reciprocally rotated by the up and down movement of the moving rod 5, thereby enhancing the cleaning effect.

Preferably, in order to prevent the moving rod 5 from being embedded into the main body 1, the moving assembly further includes a fixing plate 4, and one end of the moving rod 5 far away from the rack 6 is fixedly connected with the fixing plate 4.

Through setting up fixed plate 4, restricted carriage release lever 5's displacement, avoided the inside of carriage release lever 5 embedding host computer 1, influence dust removal mechanism work.

As shown in fig. 4, the moving assembly further includes a guide rod 19, a small hole is provided on the rack 6, two ends of the guide rod 19 are respectively fixedly connected with the top and the bottom of the main body 1, the guide rod 19 penetrates through the small hole, and the rack 6 is slidably connected with the guide rod 19.

By providing the guide rod 19, the moving direction of the rack 6 is restricted, and the stability of the rack 6 when moving is improved.

Preferably, in order to avoid rotation of the rack 6 during movement, the moving assembly further includes three limiting rods 20, one end of each limiting rod 20 is circumferentially and uniformly fixed on the inner wall of each small hole, three grooves are formed in the guide rod 19, the limiting rods 20 correspond to the grooves one to one, the other end of each limiting rod 20 is arranged inside each groove, and the limiting rods 20 are connected with the grooves in a sliding manner.

When the rack 6 moves along the guide rod 19, the limiting rod 20 is driven to move in the groove, so that the rack 6 cannot rotate when moving, the stability of the rack 6 when moving is improved, the rack 6 is prevented from inclining, and the meshing of the rack 6 and the gear 8 is influenced.

Preferably, in order to make the limiting rod 20 move smoothly in the groove, one end of the limiting rod 20, which is far away from the inner wall of the small hole, is provided with a notch, a ball 21 is arranged in the notch, the center of the ball 21 is arranged in the notch, and the ball 21 abuts against the inner wall of the groove.

Through setting up ball 21, reduced the frictional force when gag lever post 20 removes in the recess to more smooth when making gag lever post 20 remove, the smoothness nature when having improved rack 6 and removing.

Preferably, in order to make the gear 8 rotate smoothly, the rack 6 is coated with grease, so that the friction between the gear 8 and the rack 6 is reduced, and the gear 8 rotates smoothly.

Preferably, for power transmission, the transmission assembly comprises a belt 13 and two pulleys 12, the two pulleys 12 are fixedly connected with the transmission shaft 11 and the connecting rod 14 respectively, and the two pulleys 12 are connected through the belt 13.

When carrying out dust removal work, the people is for making the removal subassembly work, drives pivot 9 and rotates, drives transmission shaft 11 through worm 10 and rotates for runner 12 with 11 fixed connection of transmission shaft rotates, drives another runner 12 through belt 13 and rotates, thereby makes connecting rod 14 rotate, drives clean pole 15 and rotates, makes the dust on brush on the clean pole 15 sweeps away the dust on camera lens 2, thereby has avoided the dust adhesion on camera lens 2, influences the projection effect.

Preferably, in order to improve the cleaning effect, a brush is arranged on one side of the cleaning rod 15 close to the lens 2.

Preferably, in order to improve the stability of the connection of the worm 10 with the rotating shaft 9 and the transmission shaft 11, the worm 10, the rotating shaft 9 and the transmission shaft 11 are of an integrally molded structure.

When dust removal is needed, the movable rod 5 is manually driven to move downwards, so that the rack 6 moves downwards, meanwhile, the spring 7 is compressed, the gear 8 rotates through the meshing of the gear 8 and the rack 6, the rotating shaft 9 is driven to rotate, thereby driving the worm 10 and the transmission shaft 11 to synchronously rotate, driving the connecting rod 14 to rotate through the transmission component, thereby rotating the cleaning rod 15 to sweep away dust on the lens 2, thereby preventing dust from adhering to the lens 2 and affecting the projection effect, then opening the moving rod 5, and making the rack 6 move upwards through the restoring force of the spring 7, so that the gear 8 rotates reversely, thereby driving the rotating shaft 9, the worm 10 and the transmission shaft 11 to rotate reversely, the cleaning rod 15 rotates reversely through the transmission assembly, so that the cleaning rod 15 is reciprocally rotated by the up and down movement of the moving rod 5, thereby enhancing the cleaning effect. When worm 10 rotated, through worm 10 and worm wheel 16's meshing for worm wheel 16 rotates, thereby drives back shaft 17 and rotates, drives scraper blade 18 and rotates round back shaft 17, thereby through scraper blade 18's rotation, scrapes the dust of adhesion on the filter screen 3, avoids the dust jam on filter screen 3, influences the circulation of the inside and outside air of host computer 1, thereby avoids influencing the radiating effect.

Compared with the prior art, this projection equipment with prevent blockking up and dust removal function passes through dust removal mechanism, the function of removing dust to lens 2 has been realized, the dust adhesion has been avoided on lens 2, influence the projection effect, through preventing blockking up the mechanism, can scrape the dust on the filter screen 3, the probability that filter screen 3 blockked up has been reduced, avoid influencing the circulation of the interior outer air of host computer 1, compare with current preventing blockking up mechanism, should prevent blockking up mechanism and dust removal mechanism formula link gear as an organic whole, can scrape the dust on the filter screen 3 when removing dust to lens 2, thereby the practicality of equipment has been improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.