CN107991833B - Projector system - Google Patents

Projector system Download PDF

Info

Publication number
CN107991833B
CN107991833B CN201711423176.8A CN201711423176A CN107991833B CN 107991833 B CN107991833 B CN 107991833B CN 201711423176 A CN201711423176 A CN 201711423176A CN 107991833 B CN107991833 B CN 107991833B
Authority
CN
China
Prior art keywords
projection equipment
clamping groove
spiral clamping
winding post
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201711423176.8A
Other languages
Chinese (zh)
Other versions
CN107991833A (en
Inventor
李治
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.)
Chongqing Minyang Technology Co ltd
Original Assignee
Chongqing Ruizheng Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Ruizheng Technology Co ltd filed Critical Chongqing Ruizheng Technology Co ltd
Priority to CN201711423176.8A priority Critical patent/CN107991833B/en
Publication of CN107991833A publication Critical patent/CN107991833A/en
Application granted granted Critical
Publication of CN107991833B publication Critical patent/CN107991833B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • F16M11/20Undercarriages with or without wheels
    • 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

Abstract

The invention relates to the field of installation equipment of projectors, and provides a projector system for solving the problem that the existing projector is inconvenient to clean because of being installed at a high position, which comprises projection equipment connected with a power line, wherein a cooling fan is arranged in the projection equipment, wherein: the lower end of the wrapping post is connected with the connecting post, a spiral clamping groove is formed in the outer surface of the wrapping post, the spiral clamping groove is matched with a power line, and the power line can be clamped into the spiral clamping groove in the rotating process of the wrapping post; the lower end of the spiral clamping groove is provided with a control mechanism of the projection equipment, and the control mechanism is used for turning on or turning off the projection equipment and delaying the turning off of the cooling fan; the below intercommunication of mounting groove has the guiding hole, and the upper end of wrapping post is located the guiding hole, and the upper surface of wrapping post is provided with the rubber water pocket that is equipped with water.

Description

Projector system
Technical Field
The invention relates to the field of installation equipment of projectors, in particular to a projector system.
Background
A projector, also called a projector, is a device that can project images or videos onto a curtain, and is widely used in conference rooms, exhibition halls, and the like. The projector can project light, the inside backlight bulb depends on, and in order to project images on a screen clearly, the projector needs high-intensity brightness, so that the power of the bulb is generally more than 100W, the heat emitted is also large, although the projector is provided with heat dissipation holes, the heat generated by the bulb in the using process is huge, the heat inside the projector is also large, and the temperature of the projector is high after the projector is used for a long time.
Consequently in order to guarantee the radiating effect of projecting apparatus, when installing the projecting apparatus, generally adopt the mode of hoist and mount to install, adopt the suspension type support during hoist and mount, the upper end of support is fixed on the ceiling, the lower extreme of support then is connected with the projecting apparatus, the front end of projecting apparatus aims at the projection screen, adopt the mode of this kind of hoist and mount to install, one has guaranteed the reasonable ventilation of projecting apparatus, the heat that the projecting apparatus produced can immediately volatilize through the louvre, hot-blast influence to the sight shadow person has also been got rid of simultaneously, hold two birds with one stone. However, when the projector is installed in such a hanging manner, the installed projector is fixed at a high position, and when the projector needs to be maintained, for example, after a long time of use, various pollutants, such as dust, hair and the like, may adhere to the heat dissipation holes of the projector, and these parts need to be cleaned in time, and the projector fixed at the high position is obviously not beneficial to cleaning, and the projector needs to be detached from the bracket first and then cleaned, and the projector needs to be installed after cleaning. Thus, the cleaning work of the projector becomes cumbersome. Moreover, because the projector is installed at a high place, the remote controller is required to be used for opening or closing operation, and the remote controller is required to be aligned with the projector during operation to realize the opening or closing operation of the projector, so that the operation is troublesome.
Disclosure of Invention
The invention aims to provide a projector system to solve the problem that the existing projector is inconvenient to clean due to being installed at a high position.
The basic scheme provided by the invention is as follows: projecting apparatus system includes the projection equipment who is connected with the power cord, is provided with radiator fan in the projection equipment, wherein: the projection equipment comprises a support plate, a support column and a base, wherein the upper surface of the support plate is provided with a mounting groove for placing the projection equipment, and the support column is connected between the support plate and the base;
the base is provided with a connecting groove, a connecting column is fixed in the connecting groove, a winding post is arranged on the base, a blind hole which is matched with the connecting column in the direction is formed in the lower end of the winding post, the blind hole is connected with the connecting column, a spiral clamping groove is formed in the outer surface of the winding post and is matched with a power line, and the power line can be wound in the spiral clamping groove in the rotating process of the winding post; the control mechanism of the projection equipment is arranged in the spiral clamping groove and is used for starting or closing the projection equipment, when a power line is clamped into the spiral clamping groove, the control mechanism controls the projection equipment to be started, and when the power line exits from the spiral clamping groove, the control mechanism controls the projection equipment to be closed and the cooling fan to be closed in a delayed mode; be provided with the guiding hole in the backup pad, the guiding hole is located the below of mounting groove and communicates with the mounting groove, and the upper end of wrapping post is located the guiding hole, and the upper surface of wrapping post is provided with the rubber water pocket that is equipped with water, and the upper surface at the wrapping post is fixed to the lower extreme of rubber water pocket, and the both sides at the guiding hole are fixed to the both sides of rubber water pocket upper end.
The working principle of the basic scheme is as follows: the base is used for installing the winding post and the supporting post, and the base, the winding post and the supporting plate form a placing table of the projection equipment; the supporting plate is used for placing the projector, and after the mounting groove is formed, the projection equipment is directly placed in the mounting groove, so that the situation that the projection equipment shakes can be prevented; the supporting columns are used for supporting the supporting plates;
after the connecting groove on the base is connected with the blind hole of the winding post, the winding post can rotate on the base, the spiral clamping groove arranged on the winding post is used for fixing the power line of the projection equipment, the power line can be clamped into the spiral clamping groove in the rotating process of the winding post, and when the winding post rotates reversely, the power line is withdrawn from the spiral clamping groove; the control mechanism is used for controlling the projection equipment to be turned on and turned off in a delayed manner, when the winding post rotates, the power line is clamped into the spiral clamping groove, and the control mechanism controls the projection equipment to be turned on; when the winding post rotates reversely, the power cord exits the spiral clamping groove, and at the time, the control mechanism controls the projection equipment to be closed and the cooling fan to be closed in a delayed mode;
considering that a large amount of heat is generated during the use of the projection apparatus, the heat dissipation needs to be performed in time, and therefore, the upper surface of the winding post is provided with the rubber water bag, when the winding post rotates, because the lower end surface of the rubber water bag is fixed on the upper surface of the winding post, the lower end surface of the rubber water bag rotates along with the winding post, and because the two sides of the upper end surface of the rubber water bag are fixed on the two sides of the guide hole, namely, the upper end surface of the rubber water bag is fixed, therefore, the rubber water bag has the phenomena of rotation of the lower end and immobility of the upper end, the rubber water bag is twisted, the diameter of the rubber water bag is thinned, therefore, the liquid level of the water in the rubber water bag rises to push the middle part of the upper end surface of the rubber water bag to rise, the heat of the projection equipment is transferred to the rubber water bag and is dissipated;
therefore, when the projector system of the method is used, the power line of the projection equipment is connected with the socket in a default state; rotate the wrapping post, during the power cord card advances helical groove this moment, control mechanism control projection equipment opens, and simultaneously, at wrapping post pivoted in-process, the rubber water pocket attenuation, the mid portion of rubber water pocket up end is protruding under the effect of water and projection equipment's lower surface contact, projection equipment is on the rubber water pocket has been transmitted to the partial heat that the in-process produced using, the water evaporation in the rubber water pocket takes away the heat, reach and cool down radiating purpose to projection equipment.
The basic scheme has the beneficial effects that: compared with the existing projector, the scheme has the advantages that 1, the projection equipment is placed through the placement table formed by the base, the winding post and the supporting plate, and compared with a hoisting mode, the low-position placement of the projection equipment is realized, so that the maintenance of the projection equipment is facilitated; meanwhile, the rubber water bag arranged on the winding post can dissipate heat of the projection equipment, so that the heat dissipation of the projection equipment is ensured;
2. considering that the situation that the projector is likely to shake left and right when the projector is directly placed on the supporting plate, the mounting groove is arranged on the supporting plate for mounting the projector, so that the projector is prevented from shaking, meanwhile, the mounting groove also limits the flow direction of hot air generated in the use process of the projector, and the hot air can only flow up and down under the limitation of the mounting groove, so that the influence on a viewer is avoided;
3. utilize the cooperation of helical groove and power cord on the wrapping post, both realized the fixed of power cord and realized the control to projection equipment again, consider simultaneously in order to guarantee projection equipment's normal use, generally all be just the disconnection power after radiator fan stall, therefore the controllable radiator fan time delay of control mechanism is closed to can distribute out the waste heat of inside among the projection equipment, thereby guaranteed projection equipment's radiating effect.
The first preferred scheme is as follows: preferably, the spiral clamping groove is in a flaring shape from inside to outside. Has the advantages that: consider that the in-process power cord that rotates at the wrapping post needs to block into helical groove, and the in-process power cord that uses is not a state of aliging with helical groove, so set up helical groove into flaring form back, helical groove's side slope sets up, recycles the hypotenuse and leads to the power cord, guarantees that the power cord can be smooth block into helical groove in, simple structure.
The preferred scheme II is as follows: as the preferred of basic scheme, the upper end of spiral draw-in groove can be dismantled and is connected with buckle spare, and buckle spare is arranged in fixing the upper end of power cord in spiral draw-in groove. Has the advantages that: in the use, the upper end of power cord does not need the motion, consequently, in order to guarantee the fixed effect to the power cord, has set up buckle spare to the upper end in spiral draw-in groove, utilizes buckle spare to fix the upper end of power cord in spiral draw-in groove, simple structure.
The preferable scheme is three: preferably as preferred scheme two, buckle spare is semicircle fastener, and the both ends of fastener are provided with the fixed plate, fixed plate and wrapping post threaded connection. Has the advantages that: choose semicircle fastener for use is for the shape of cooperation power cord, and through setting up the fixed plate to semicircle fastener, utilizes the threaded connection of fixed plate to realize the connection of dismantling of buckle spare on the wrapping post, easy operation.
The preferable scheme is four: preferably, the control mechanism comprises a button switch and a time relay for delaying power-off, wherein the button switch is used for controlling the projection equipment to be switched on and switched off, and the time relay is used for controlling the heat radiation fan to be powered off in a delayed mode. Has the advantages that: the projection equipment is turned on and off by utilizing the button switch, and the cooling fan is arranged inside the projection equipment and belongs to an internal element of the projection equipment, so that the internal cooling fan is simultaneously started after the projection equipment is powered on, and when the projection equipment is turned off, in order to realize the delayed turning off of the cooling fan, the time relay with power-off delay is arranged to control the delayed turning off of the cooling fan, thereby ensuring the cooling effect of the projection equipment.
The preferable scheme is five: preferably, the time relay is a balloon-type time relay. Has the advantages that: by adopting the air bag type time relay, the contact which is turned off in a delayed way can keep the on state when the power is off, and the contact which is turned off in a delayed way can be turned off until the gas in the air bag is exhausted, so that the delayed power is off, and the heat dissipation effect of the projection equipment is ensured.
Drawings
FIG. 1 is a schematic diagram of a projector system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the support apparatus of FIG. 1;
fig. 3 is a schematic structural diagram of a locking member according to an embodiment of the projector system of the invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a base 10, a connecting column 101, a supporting column 13, a winding column 15, a spiral clamping groove 151, a control mechanism 153, a fastener 157, a supporting plate 17, a rubber water bag 155, projection equipment 20 and a power cord 21.
The projector system shown in fig. 1 and 2 includes a projection device 20 connected to a power supply line 21, and a heat dissipation fan is provided in the projection device 20, wherein: the projection equipment comprises a support plate 17, a support column 13 and a base 10, wherein the upper surface of the support plate 17 is provided with a mounting groove for placing the projection equipment 20, and the support column 13 is connected between the support plate 17 and the base 10;
a connecting groove is formed in the base 10, a connecting column 101 is fixed in the connecting groove, the connecting column 101 is welded in the connecting groove in the embodiment, a winding post 15 is arranged in the connecting groove, the winding post 15 is connected with the connecting column 101 through a blind hole formed in the lower end of the winding post 15, a spiral clamping groove 151 is formed in the outer surface of the winding post 15, the spiral clamping groove 151 is matched with a power line 21, and the power line 21 can be clamped into the spiral clamping groove 151 in the rotating process of the connecting column 101; considering that the power cord 21 needs to be clamped into the spiral clamping groove 151 in the rotation process of the winding post 15, and the power cord 21 is not aligned with the spiral clamping groove 151 in the use process, after the spiral clamping groove 151 is arranged in an expanded shape, the side edge of the spiral clamping groove 151 is obliquely arranged, the power cord 21 is guided by the oblique edge, and the power cord 21 can be smoothly clamped into the spiral clamping groove 151;
the lower end of the spiral card slot 151 is provided with a control mechanism 153 of the projection device 20, the control mechanism 153 is used for turning on or turning off the projection device 20, when the power cord 21 is clamped into the spiral card slot 151, the control mechanism 153 controls the projection device 20 to be turned on, and when the power cord 21 exits from the spiral card slot 151, the control mechanism 153 controls the projection device 20 to be turned off and the cooling fan to be turned off in a delayed manner; the backup pad 17 still is provided with the guiding hole, and the guiding hole is located the below of mounting groove and communicates with the mounting groove, and the upper end of wrapping post 15 is located the guiding hole, and the upper surface of wrapping post 15 is provided with the rubber water pocket 155 that is equipped with water, and the upper surface at wrapping post 15 is fixed to the lower extreme of rubber water pocket 155, and the both sides at the guiding hole are fixed to the both sides of rubber water pocket 155 upper end.
The base 10 is used for installing the winding post 15 and the supporting post 13, and the base 10, the winding post 15 and the supporting plate 17 form a placing table of the projection equipment 20; the supporting plate 17 is used for placing a projector, and after the mounting groove is formed, the projection equipment 20 is directly placed in the mounting groove, so that the situation that the projection equipment 20 shakes can be prevented; the supporting column 13 is used for supporting the supporting plate 17;
after the connection slot on the base 10 is connected with the blind hole of the winding post 15, the winding post 15 can rotate on the base 10 by itself, the spiral slot 151 disposed on the winding post 15 is used for fixing the power cord 21 of the projection device 20, during the rotation (counterclockwise rotation in this embodiment) of the winding post 15, the power cord 21 can be clamped into the spiral slot 151, and when the winding post 15 rotates in the reverse direction (clockwise rotation in this embodiment), the power cord 21 is withdrawn from the spiral slot 151; moreover, in the using process, the upper end of the power line 21 does not need to move, so in order to ensure the fixing effect of the power line 21, a buckle 157 is arranged at the upper end of the spiral clamping groove 151, and the upper end of the power line 21 is fixed in the spiral clamping groove 151 by using the buckle 157, so that the operation is simple, wherein in the embodiment, as shown in fig. 3, the buckle 157 is a semicircular fastener, and fixing plates are arranged at two ends of the fastener and are in threaded connection with the winding posts 15;
the control mechanism 153 is used for controlling the projection device 20 to be turned on and turned off with a delay, when the winding post 15 rotates, the power cord 21 is clamped into the spiral clamping groove 151, and at this time, the control mechanism 153 controls the projection device 20 to be turned on; when the winding post 15 rotates reversely, the power cord 21 exits the spiral slot 151, and at this time, the control mechanism 153 controls the projection device 20 to be turned off and the cooling fan to be turned off in a delayed manner; in order to achieve the above functions, the control mechanism 153 in this embodiment includes a button switch and a time relay for power-off delay, wherein the button switch is used for controlling the projection device 20 to be turned on and off, and the time relay is used for controlling the time delay power-off of the cooling fan; the adopted time relay is an air bag type time relay, when the power is off, the contact of the time relay which is turned off in a delayed way can keep the on state, and the contact of the time relay which is turned off in a delayed way can not be turned off until the air in the air bag is exhausted, so that the delayed power off is realized, and the heat dissipation effect of the projection equipment 20 is ensured;
considering that a large amount of heat is generated during the use of the projection apparatus 20 and the heat needs to be dissipated in time, the rubber water bag 155 is disposed on the upper surface of the winding post 15, when the winding post 15 rotates, because the lower end surface of the rubber water bag 155 is fixed on the upper surface of the winding post 15, the lower end surface of the rubber water bag 15 rotates along with the winding post 155, and because the two sides of the upper end surface of the rubber water bag 15 are fixed on the two sides of the guide hole, that is, the upper end surface of the rubber water bag 15 is stationary, the rubber water bag 15 also has the phenomena of lower end rotation and upper end stationary, the rubber water bag 15 twists and has a reduced diameter, therefore, the liquid level of the water in the rubber water bag 15 rises, the middle part of the upper end surface of the rubber water bag 15 is pushed to rise to abut against the lower surface of the projection apparatus 20, and part of the heat of the projection apparatus 20 is transferred to the rubber water bag 155, the emission is obtained;
therefore, when the projector system of the present method is used, the power cord 21 of the projection device 20 is connected to the socket by default; rotate around 151 posts, power cord 21 blocks into in the helical groove 151 this moment, control mechanism 153 controls projection equipment 20 and opens, simultaneously, at the pivoted in-process of winding 15 posts, the middle part of rubber water pocket 155 up end is protruding under the effect of water and is contacted with projection equipment 20's lower surface, projection equipment 20 has been transmitted to rubber water pocket 155 on the partial heat that the in-process produced of using, the water evaporation in the rubber water pocket 155, take away the heat, reach the radiating purpose of cooling to projection equipment 20.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (4)

1. Projector system, including the projection equipment who is connected with the power cord, be provided with radiator fan in the projection equipment, its characterized in that: the projection equipment comprises a support plate, a support column and a base, wherein the upper surface of the support plate is provided with a mounting groove for placing the projection equipment, and the support column is connected between the support plate and the base;
the base is provided with a connecting groove, a connecting column is fixed in the connecting groove, a winding post is arranged on the base, a blind hole which is matched with the connecting column in the direction is formed in the lower end of the winding post, the blind hole is connected with the connecting column, a spiral clamping groove is formed in the outer surface of the winding post, the spiral clamping groove is matched with the power line, and the power line can be clamped into the spiral clamping groove in the rotating process of the winding post; the projection equipment is arranged in the spiral clamping groove, the control mechanism is used for turning on or turning off the projection equipment, when the power line is clamped into the spiral clamping groove, the control mechanism controls the projection equipment to be turned on, and when the power line exits from the spiral clamping groove, the control mechanism controls the projection equipment to be turned off and the cooling fan to be turned off in a delayed mode; the supporting plate is provided with a guide hole, the guide hole is positioned below the mounting groove and communicated with the mounting groove, the upper end of the winding post is positioned in the guide hole, the upper surface of the winding post is provided with a rubber water bag filled with water, the lower end of the rubber water bag is fixed on the upper surface of the winding post, and two sides of the upper end of the rubber water bag are fixed on two sides of the guide hole;
the spiral clamping groove is in a flaring shape from inside to outside; the upper end of the spiral clamping groove is detachably connected with a clamping piece, and the clamping piece is used for fixing the upper end of the power line in the spiral clamping groove.
2. The projector system of claim 1, wherein: the fastener is a semicircular fastener, fixing plates are arranged at two ends of the fastener, and the fixing plates are in threaded connection with the winding posts.
3. The projector system of claim 1, wherein: the control mechanism comprises a button switch and a time relay for delaying power failure, the button switch is used for controlling the projection equipment to be switched on and switched off, and the time relay is used for controlling the delayed power failure of the cooling fan.
4. The projector system of claim 3, wherein: the time relay is an air bag type time relay.
CN201711423176.8A 2017-12-25 2017-12-25 Projector system Active CN107991833B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711423176.8A CN107991833B (en) 2017-12-25 2017-12-25 Projector system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711423176.8A CN107991833B (en) 2017-12-25 2017-12-25 Projector system

Publications (2)

Publication Number Publication Date
CN107991833A CN107991833A (en) 2018-05-04
CN107991833B true CN107991833B (en) 2020-04-14

Family

ID=62041750

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711423176.8A Active CN107991833B (en) 2017-12-25 2017-12-25 Projector system

Country Status (1)

Country Link
CN (1) CN107991833B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101576761B (en) * 2008-05-09 2010-10-06 上海德通生物科技有限公司 Cooling device of notebook PC
CN104516183A (en) * 2013-10-06 2015-04-15 西安洛灵杰电子通讯科技有限公司 Stand special for projector
CN203617505U (en) * 2013-12-30 2014-05-28 鲁华栋 Wire storage box for computer
JP6303517B2 (en) * 2014-01-15 2018-04-04 セイコーエプソン株式会社 Projector support device
US10509302B2 (en) * 2015-04-23 2019-12-17 Legrand Av Inc. Short throw projector mount with adjustable screw drive

Also Published As

Publication number Publication date
CN107991833A (en) 2018-05-04

Similar Documents

Publication Publication Date Title
KR20170067270A (en) Lighting fixture
CN107991833B (en) Projector system
CN206817351U (en) A kind of adjustable type Down lamp
CN207527256U (en) A kind of support fender bracket of the free adjusting height of projector of energy
CN210573149U (en) Multimedia device with heat dissipation dustproof construction for classroom
JP2005155558A (en) Ceiling fan, and ceiling fan with lighting equipment
CN103293839B (en) A kind of Automatic dust prevention system of projector
CN108131535B (en) Projector mounting bracket
CN205176464U (en) Projector device
CN215351749U (en) Wall-mounted gas fire extinguishing control device
JP2004078150A (en) Projection display device
CN112982795A (en) Suspended ceiling
CN207851492U (en) A kind of energy-conserving intelligent projecting apparatus
CN218378490U (en) Image projection device for simulation system
CN218001781U (en) Energy-conserving fresh air control device
CN217363622U (en) Local fan has frequency conversion speed adjusting device of ventilation blast resistant construction
CN211260265U (en) Multifunctional projector for mathematical education
CN218820141U (en) Anti-dazzle LED projection lamp
CN116857611B (en) LED illuminating lamp and LED illuminating device
CN215482464U (en) Guide frame for artificial abortion in tourist attraction
CN219283273U (en) Improved spotlight
CN214543184U (en) Uninterrupted power supply box based on system for enterprise management
CN216079417U (en) LED lamp with efficient heat dissipation function
CN216434870U (en) Radiator with dustproof effect
CN208312125U (en) A kind of circular semiconductor Projecting Lamp

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210312

Address after: 400000 unit 1-1, No.2, Jianxing Lane 1, Yuzhong District, Chongqing

Patentee after: Li Zhi

Address before: 400039 5f-546, Baiteng Digital Plaza, 13 Shiyang Road, Jiulongpo District, Chongqing

Patentee before: CHONGQING RUIZHENG TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220914

Address after: No. 1 Mopanshan, Shiqiaopu, Yuzhou Road Street, Jiulongpo District, Chongqing 400000 (self-promised)

Patentee after: Chongqing minyang Technology Co.,Ltd.

Address before: 400000 unit 1-1, No.2, Jianxing Lane 1, Yuzhong District, Chongqing

Patentee before: Li Zhi