CN114035394A - Digital media playing device - Google Patents

Digital media playing device Download PDF

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Publication number
CN114035394A
CN114035394A CN202111315784.3A CN202111315784A CN114035394A CN 114035394 A CN114035394 A CN 114035394A CN 202111315784 A CN202111315784 A CN 202111315784A CN 114035394 A CN114035394 A CN 114035394A
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CN
China
Prior art keywords
friction
digital media
box
threaded rod
rod
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Granted
Application number
CN202111315784.3A
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Chinese (zh)
Other versions
CN114035394B (en
Inventor
邱青敬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Yingke Electronics Co ltd
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Individual
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Priority to CN202111315784.3A priority Critical patent/CN114035394B/en
Publication of CN114035394A publication Critical patent/CN114035394A/en
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Publication of CN114035394B publication Critical patent/CN114035394B/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/54Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28Plant or installations without electricity supply, e.g. using electrets
    • B03C3/30Plant or installations without electricity supply, e.g. using electrets in which electrostatic charge is generated by passage of the gases, i.e. tribo-electricity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/74Cleaning the electrodes
    • B03C3/80Cleaning the electrodes by gas or solid particle blasting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/18Heads with mechanism for moving the apparatus relatively to the stand
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/16Cooling; Preventing overheating

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Projection Apparatus (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a digital media playing device which comprises a mounting plate and a projector body, wherein a connecting rod is arranged on the mounting plate, a connecting plate is arranged on the connecting rod, a heat dissipation port is arranged on the side surface of the projector body, and a shielding box is arranged inside the projector body. In the invention, the surfaces of the friction belts rub against each other to generate static electricity, dust is adsorbed on the surfaces of the friction belts through an electrostatic adsorption effect, meanwhile, the friction belts are provided with the through holes and the grooves, the through holes are used for air circulation, so that clean air enters the interior of the projector to play a role in heat dissipation for internal equipment, the grooves increase the quantity of the dust which can be adsorbed by the friction belts, and the dust is conveniently concentrated.

Description

Digital media playing device
Technical Field
The present invention relates to the field of digital media technologies, and in particular, to a digital media playing apparatus.
Background
Digital media refers to information carriers that record, process, propagate, and acquire processes in the form of binary numbers, and these carriers include digitized sensory media such as text, graphics, images, sound, video images, and animation, and presentation media or codes that represent these sensory media, which are generally referred to as logical media, and physical media that store, transmit, and display the logical media.
When digital media shows, need adopt the projecting apparatus to throw, the mode that conventional projecting apparatus adopted the furred ceiling is installed indoor, is provided with air-cooled radiator unit in the projecting apparatus, but conventional air-cooled radiator unit goes up can't filter the dust by a wide margin, so the dust can be along with the inside that the fan sent into the projecting apparatus, piles up after long-term the use inside at the projecting apparatus and has not only reduced heat dispersion, still influences projecting apparatus internal circuit and light source normal work.
Disclosure of Invention
The invention aims to: in order to solve the above problems, a digital media playing device is proposed.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a digital media play device, includes mounting panel and projecting apparatus body, be provided with the connecting rod on the mounting panel, be provided with the connecting plate on the connecting rod, the side of projecting apparatus body is provided with the thermovent, the inside of projecting apparatus body is provided with the shielding box, the inside of shielding box is provided with radiator fan and two friction subassemblies, friction subassembly has friction area and rotation axis to constitute, shielding box top is provided with the rotation axis syntropy pivoted drive arrangement in order to drive two friction subassemblies, two of two friction subassemblies the surface in friction area is laminated each other, the side of shielding box is provided with the air intake.
Preferably, the shielding box comprises a box body and a cover body which are fixedly connected through bolts, and the box body and the cover body are both made of electrostatic protection materials.
Preferably, be provided with ion fan on the lid, the bottom of box body is provided with the air outlet to the inside of box body is provided with the baffle, one side that the baffle is close to the friction zone is provided with the brush, and the surface in brush laminating friction zone.
Preferably, the lower end of the ion fan is provided with an air outlet pipe, and the lower end of the air outlet pipe is positioned above the air outlet.
Preferably, the surface of the friction belt is provided with a plurality of through holes and grooves, and the depth of the grooves is not less than half of the thickness of the friction belt.
Preferably, be provided with coupling assembling and the drive assembly of two symmetric distributions on the mounting panel, coupling assembling comprises two dwang, drive assembly comprises gear, first driving piece and first threaded rod, first threaded rod sets up the output at first driving piece to interlock each other with the gear.
Preferably, coupling assembling's lower extreme is provided with the horizontal migration subassembly, the horizontal migration subassembly includes the standing groove and sets up two bracing pieces at the standing groove top, be provided with second threaded rod and slide bar on two bracing pieces respectively, second threaded rod and slide bar set up respectively two between coupling assembling's the corresponding dwang, the outside of second threaded rod is provided with the thread bush, and the thread bush rotates with the bracing piece to be connected, one be provided with the second driving piece on the bracing piece, another be provided with the sliding sleeve on the bracing piece, the output of second driving piece passes through drive assembly and is connected with the thread bush transmission, the sliding sleeve cover is established in the slide bar outside.
Preferably, the side of the placing groove is provided with a filter screen, and the filter screen is arranged corresponding to the heat dissipation opening.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. this application is through setting up two friction areas in projecting apparatus this part, it removes to drive two friction areas by drive arrangement, friction area surface looks mutual friction, thereby produce static, inhale the air in the projecting apparatus under radiator fan's effect, through the electrostatic adsorption effect, make the dust adsorbed on the surface in friction area, be provided with through-hole and recess on the friction area simultaneously, the through-hole is for the circulation of air, make inside clean air admission projecting apparatus, play the radiating action to interior equipment, and the recess has increased the quantity of the dust that the friction area can adsorb, and conveniently concentrate the dust, compare in conventional digital media play device, this device can effectively reduce the inside dust of entering device, thereby make the heat dispersion of device stable, and make the device normally work.
2. This application is through setting up the ion fan in that the device is inside, and the ion air current that the ion fan produced sweeps on the friction zone, makes the partial friction zone that is located the ion fan sweep the within range lose static to make the dust lose the electrostatic adsorption effect, will lose the dust removing device of adsorption effect under the air current sweeps simultaneously, thereby reduce the dust and pile up in the device is inside.
3. This application is through setting up the device in the standing groove, sets up mounting panel and adjustment mechanism on the standing groove, and adjustment mechanism comprises runner assembly and removal subassembly, plays the effect of controlling the adjusting device position from top to bottom, makes the projection position can accurate adjustment when hanging and establishing the device, guarantees that the projection picture is accurate to fall on the curtain.
Drawings
FIG. 1 is a schematic diagram illustrating an overall structure of an apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an overall structure of a projector according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an exploded structure of a heat dissipation mechanism provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an internal structure of a cartridge provided according to an embodiment of the present invention;
FIG. 5 shows a schematic diagram of a surface structure of a friction belt provided according to an embodiment of the invention.
Illustration of the drawings:
1. mounting a plate; 2. a placement groove; 3. a projector body; 4. a connecting rod; 5. a connecting plate; 6. rotating the rod; 7. a gear; 8. a first driving member; 9. a first threaded rod; 10. a second threaded rod; 11. a slide bar; 12. a support bar; 13. a second driving member; 14. a transmission assembly; 15. a threaded sleeve; 16. filtering with a screen; 17. a heat dissipation port; 18. a box body; 19. a cover body; 20. an air inlet; 21. a heat radiation fan; 22. a friction belt; 23. a rotating shaft; 24. a drive device; 25. an ion fan; 26. an air outlet; 27. a baffle plate; 28. a brush; 29. a through hole; 30. and (4) a groove.
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. 1-5, the present invention provides a technical solution:
the utility model provides a digital media play device, including mounting panel 1 and projecting apparatus body 3, be provided with connecting rod 4 on the mounting panel 1, be provided with connecting plate 5 on the connecting rod 4, the side of projecting apparatus body 3 is provided with thermovent 17, the inside of projecting apparatus body 3 is provided with the shielding box, the inside of shielding box is provided with radiator fan 21 and two friction subassemblies, friction subassembly has friction area 22 and rotation axis 23 to constitute, the shielding box top is provided with rotation axis 23 syntropy pivoted drive arrangement 24 in order to drive two friction subassemblies, the surface of two friction area 22 of two friction subassemblies is laminated each other, the side of shielding box is provided with air intake 20. The shielding box is composed of a box body 18 and a cover body 19 which are fixedly connected through bolts, and the box body 18 and the cover body 19 are both made of electrostatic protection materials. The cover 19 is provided with an ion fan 25, the bottom of the box 18 is provided with an air outlet 26, a baffle 27 is arranged inside the box 18, one side of the baffle 27 close to the friction belt 22 is provided with a brush 28, and the brush 28 is attached to the surface of the friction belt 22. The lower end of the ion fan 25 is provided with an air outlet pipe, and the lower end of the air outlet pipe is positioned above the air outlet 26. The surface of the friction belt 22 is provided with a plurality of through holes 29 and grooves 30, and the depth of the grooves 30 is not less than half the thickness of the friction belt 22. Be provided with coupling assembling and the drive assembly of two symmetric distributions on the mounting panel 1, coupling assembling comprises two dwang 6, and the drive assembly comprises gear 7, first driving piece 8 and first threaded rod 9, and first threaded rod 9 sets up the output at first driving piece 8 to interlock each other with gear 7. The lower extreme of coupling assembling is provided with the horizontal migration subassembly, the horizontal migration subassembly includes standing groove 2 and two bracing pieces 12 of setting at standing groove 2 top, be provided with second threaded rod 10 and slide bar 11 on two bracing pieces 12 respectively, second threaded rod 10 and slide bar 11 set up respectively between two coupling assembling's corresponding dwang 6, the outside of second threaded rod 10 is provided with thread bush 15, and thread bush 15 rotates with bracing piece 12 to be connected, be provided with second driving piece 13 on one bracing piece 12, be provided with the sliding sleeve on another bracing piece 12, the output of second driving piece 13 passes through drive assembly 14 and is connected with 15 transmissions of thread bush, the sliding sleeve cover is established in the slide bar 11 outside. The side of the placing groove 2 is provided with a filter screen 16, and the filter screen 16 is arranged corresponding to the heat dissipation opening 17.
Specifically, as shown in fig. 1, a connecting rod 4 is arranged on a mounting plate 1, a connecting plate 5 is arranged on the connecting rod 4, two connecting assemblies and two driving assemblies which are symmetrically distributed are arranged on the mounting plate 1, each connecting assembly comprises two rotating rods 6, each driving assembly comprises a gear 7, a first driving part 8 and a first threaded rod 9, and the first threaded rod 9 is arranged at the output end of the first driving part 8 and is mutually meshed with the gear 7. The lower extreme of coupling assembling is provided with the horizontal migration subassembly, the horizontal migration subassembly includes standing groove 2 and two bracing pieces 12 of setting at standing groove 2 top, be provided with second threaded rod 10 and slide bar 11 on two bracing pieces 12 respectively, second threaded rod 10 and slide bar 11 set up respectively between two coupling assembling's corresponding dwang 6, the outside of second threaded rod 10 is provided with thread bush 15, and thread bush 15 rotates with bracing piece 12 to be connected, be provided with second driving piece 13 on one bracing piece 12, be provided with the sliding sleeve on another bracing piece 12, the output of second driving piece 13 passes through drive assembly 14 and is connected with 15 transmissions of thread bush, the sliding sleeve cover is established in the slide bar 11 outside.
Standing groove 2 comprises bottom plate and two curb plates, and projecting apparatus body 3 is placed on standing groove 2, and the both ends of two bracing pieces 12 set up respectively in two curb plate upper ends, and standing groove 2 and bracing piece 12 encircle the outside at projecting apparatus body 3, play the guard action.
Be provided with the screw thread pilot hole on the connecting plate 5, fix on the wall on roof through expansion bolts connecting plate 5, connecting rod 4 is the telescopic link, and its adjustable length makes the projecting apparatus can adjust to suitable projected position from top to bottom.
First driving piece 7 can drive first threaded rod 9 after starting and rotate, further drives the gear 8 rotation with the interlock of first threaded rod 9, drives dwang 6 and rotates around self upper end, because two dwang 6, mounting panel 1 and the bracing piece 12 of coupling assembling constitute the parallelogram structure jointly, and then can be about adjusting the projecting apparatus in two directions.
Second driving piece 13 starts and to drive the thread bush 15 rotation through transmission assembly 14 to make standing groove 2 remove along the axial direction of second threaded rod 10, control the position of adjustment projecting apparatus, adopt foretell scheme to need not the manual work and climb the eminence adjustment, through mechanical control, improve the security of operation.
Specifically, as shown in fig. 2 to 5, a heat dissipation port 17 is provided on a side surface of the projector body 3, a shielding box is provided inside the projector body 3, a heat dissipation fan 21 and two friction components are provided inside the shielding box, each friction component is composed of a friction belt 22 and a rotation shaft 23, a driving device 24 for driving the rotation shafts 23 of the two friction components to rotate in the same direction is provided on a top of the shielding box, surfaces of the two friction belts 22 of the two friction components are attached to each other, and an air inlet 20 is provided on a side surface of the shielding box. The shielding box is composed of a box body 18 and a cover body 19 which are fixedly connected through bolts, and the box body 18 and the cover body 19 are both made of electrostatic protection materials. The side of the placing groove 2 is provided with a filter screen 16, and the filter screen 16 is arranged corresponding to the heat dissipation opening 17. The surface of the friction belt 22 is provided with a plurality of through holes 29 and grooves 30, and the depth of the grooves 30 is not less than half the thickness of the friction belt 22.
Radiator fan 21 sends into the inside of projecting apparatus body 3 with the air after starting, the air filters through filter screen 16 earlier, get rid of the dust of great granule, two friction belts 22 move friction under drive arrangement 24's drive, friction belt 22 adopts the chemical fibre material, easily produce static through the friction, the air passes from through-hole 29 on friction belt 22 when flowing, dust receives in the air electrostatic adsorption to adhere to in the surface and the recess 30 of friction belt 22 simultaneously, can filter the dust in the air through this mode, cool down in making clear air entering projecting apparatus body 3.
The grooves 30 increase the surface area of the friction belt 22 and the grooves 30 can contain more dust, which helps to improve the dust filtration effect of the device.
Specifically, as shown in fig. 3, an ion fan 25 is disposed on the cover 19, an air outlet 26 is disposed at the bottom of the box 18, a baffle 27 is disposed inside the box 18, a brush 28 is disposed on a side of the baffle 27 close to the friction belt 22, and the brush 28 is attached to the surface of the friction belt 22. The lower end of the ion fan 25 is provided with an air outlet pipe, and the lower end of the air outlet pipe is positioned above the air outlet 26.
The ion air flow generated by the ion fan 25 is blown on part of the friction belt 22 from the air outlet pipe, so that part of static electricity of the friction belt 22 is removed, and dust on the part loses the electrostatic adsorption effect, and is discharged from the air outlet 26 under the blowing of the air flow, and the accumulation of the dust in the projector body 3 can be reduced by the mode.
In summary, in the digital media playing device provided by this embodiment, when the digital media playing device is installed, the projector body 3 is placed in the placement slot 2, the connection plate 5 is fixed on the roof through the expansion bolt, when the projector is used, the heat dissipation fan 21 is started, the driving device 24 is started to drive the rotation shaft 23 to rotate, the friction belt 22 is further moved, static electricity is generated on the friction belt 22 through mutual friction of the two friction belts 22, the heat dissipation fan 21 sucks air from the air inlet 20, the air passes through the through hole 29 on the friction belt 22 into the interior of the projector, dust in the air is attached to the surface of the friction belt 22 and the interior of the groove 30 due to the attraction of the static electricity, the dust is transported to the lower side of the ion fan 25 along with the movement of the friction belt 22, the ion fan 25 is started to generate an airflow with ions, and blows over the passing friction belt 22, the static electricity in the friction belt 22 at the lower part of the ion fan 25 can be removed, so that the dust loses the electrostatic adsorption effect, and the dust is discharged from the air outlet 26 under the blowing of the airflow generated by the ion fan 25.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a digital media play device, includes mounting panel (1) and projecting apparatus body (3), be provided with connecting rod (4) on mounting panel (1), be provided with connecting plate (5) on connecting rod (4), the side of projecting apparatus body (3) is provided with thermovent (17), a serial communication port, the inside of projecting apparatus body (3) is provided with the shielding box, the inside of shielding box is provided with radiator fan (21) and two friction components, friction components has friction tape (22) and rotation axis (23) to constitute, shielding box top is provided with rotation axis (23) syntropy pivoted drive arrangement (24) in order to drive two friction components, two of two friction components the surface of friction tape (22) is laminated each other, the side of shielding box is provided with air intake (20).
2. The digital media player according to claim 1, wherein the shielding box is composed of a box body (18) and a cover body (19) which are fixedly connected by bolts, and the box body (18) and the cover body (19) are made of static electricity protection materials.
3. The digital media player according to claim 2, wherein the cover (19) is provided with an ion fan (25), the bottom of the box (18) is provided with an air outlet (26), and a baffle (27) is provided inside the box (18), a side of the baffle (27) close to the friction belt (22) is provided with a brush (28), and the brush (28) is attached to the surface of the friction belt (22).
4. A digital media player according to claim 3, wherein the ion fan (25) is provided with an air outlet at its lower end, and the lower end of the air outlet is located above the air outlet (26).
5. A digital media player device as claimed in claim 1, wherein the surface of the friction belt (22) is provided with a plurality of through holes (29) and grooves (30), the depth of the grooves (30) being not less than half the thickness of the friction belt (22).
6. A digital media player as claimed in claim 1, wherein the mounting plate (1) is provided with two symmetrically distributed connecting components and a driving component, the connecting components are composed of two rotating rods (6), the driving component is composed of a gear (7), a first driving member (8) and a first threaded rod (9), and the first threaded rod (9) is arranged at the output end of the first driving member (8) and is engaged with the gear (7).
7. The digital media playing device according to claim 6, wherein the lower end of the connecting component is provided with a horizontal moving component, the horizontal moving component comprises a placing groove (2) and two supporting rods (12) arranged at the top of the placing groove (2), the two supporting rods (12) are respectively provided with a second threaded rod (10) and a sliding rod (11), the second threaded rod (10) and the sliding rod (11) are respectively arranged between the corresponding rotating rods (6) of the two connecting components, the outer side of the second threaded rod (10) is provided with a threaded sleeve (15), the threaded sleeve (15) is rotatably connected with the supporting rods (12), one of the supporting rods (12) is provided with a second driving member (13), the other supporting rod (12) is provided with a sliding sleeve, the output end of the second driving member (13) is in transmission connection with the threaded sleeve (15) through a transmission component (14), the sliding sleeve is sleeved on the outer side of the sliding rod (11).
8. A digital media player according to claim 7, characterized in that the side of the placement slot (2) is provided with a filter (16), and the filter (16) is disposed corresponding to the heat dissipation opening (17).
CN202111315784.3A 2021-11-08 2021-11-08 Digital media playing device Active CN114035394B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111315784.3A CN114035394B (en) 2021-11-08 2021-11-08 Digital media playing device

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Application Number Priority Date Filing Date Title
CN202111315784.3A CN114035394B (en) 2021-11-08 2021-11-08 Digital media playing device

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CN114035394A true CN114035394A (en) 2022-02-11
CN114035394B CN114035394B (en) 2024-06-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116871055A (en) * 2023-07-10 2023-10-13 新泰恒利赢硅业有限公司 Recovery and re-reaction device for trichlorosilane synthetic silica fume

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Publication number Priority date Publication date Assignee Title
KR20070013027A (en) * 2005-07-25 2007-01-30 주식회사 엘지화학 Air purifier
US20100077926A1 (en) * 2008-09-26 2010-04-01 Panasonic Corporation Dust capture device and projection type image display apparatus
CN104858062A (en) * 2015-03-19 2015-08-26 张栋梁 Dust micro-particle adsorption treatment apparatus
CN111929972A (en) * 2020-08-05 2020-11-13 南京城市职业学院(南京市广播电视大学) Multimedia projection device for teaching
CN112605023A (en) * 2020-12-24 2021-04-06 深圳市俊达通办公智能科技有限公司 Projector with dust removal function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070013027A (en) * 2005-07-25 2007-01-30 주식회사 엘지화학 Air purifier
US20100077926A1 (en) * 2008-09-26 2010-04-01 Panasonic Corporation Dust capture device and projection type image display apparatus
CN104858062A (en) * 2015-03-19 2015-08-26 张栋梁 Dust micro-particle adsorption treatment apparatus
CN111929972A (en) * 2020-08-05 2020-11-13 南京城市职业学院(南京市广播电视大学) Multimedia projection device for teaching
CN112605023A (en) * 2020-12-24 2021-04-06 深圳市俊达通办公智能科技有限公司 Projector with dust removal function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116871055A (en) * 2023-07-10 2023-10-13 新泰恒利赢硅业有限公司 Recovery and re-reaction device for trichlorosilane synthetic silica fume
CN116871055B (en) * 2023-07-10 2024-03-05 新泰恒利赢硅业有限公司 Recovery and re-reaction device for trichlorosilane synthetic silica fume

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